CN104847685A - Corrosion--resisting sea water pump - Google Patents
Corrosion--resisting sea water pump Download PDFInfo
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- CN104847685A CN104847685A CN201510216280.4A CN201510216280A CN104847685A CN 104847685 A CN104847685 A CN 104847685A CN 201510216280 A CN201510216280 A CN 201510216280A CN 104847685 A CN104847685 A CN 104847685A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
- C23C28/042—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material including a refractory ceramic layer, e.g. refractory metal oxides, ZrO2, rare earth oxides
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/086—Iron or steel solutions containing HF
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
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Abstract
A corrosion-resisting sea water pump comprises a pump body and an impeller installed inside the pump body, wherein the impeller comprises an iron-base alloy impeller body and an chromic oxide ceramic material layer outside the impeller body. The pump body comprises an aluminum alloy pump body, a silicon oxide ceramic material layer on the outer surface of the pump body and a titanium carbide ceramic material layer on the inner surface of the pump body. The corrosion-resisting sea water pump has the advantages that iron alloy and the aluminum alloy contain simple components and can meet the strength requirement of an oil pump; the iron alloy and the aluminum alloy containing the simple components are subjected to surface treatment processes of acid pickling and passivation, so that any surface black points and other problems are avoided, and a clean and tidy surface can be obtained.
Description
Technical field
The present invention relates to a kind of corrosion-resistant sea water pump, belongs to pump technology field.
Background technique
At present, circulating water pump is made up of the pump housing, impeller etc.Working medium due to water pump is middle water, seawater etc., and operating conditions is comparatively severe, easily produces abrasion and corrosion, therefore there are certain requirements material property.General impeller can adopt stainless steel, and the pump housing is comparatively large due to volume, mainly adopts to produce in a large number, and technique is simple, the cast iron be cheaply easy to get.But the corrosion resistance of cast iron is poor, perishable, and therefore water pump is in use easily damaged, water pump is caused to scrap.
Summary of the invention
Object of the present invention is exactly to solve the problem, and provides a kind of corrosion-resistant sea water pump, by the selection to the pump housing and impeller material and its cover coat, alleviates the rate of corrosion of sea water pump, effectively improves the working life of sea water pump.
A kind of corrosion-resistant sea water pump, it impeller comprising a pump housing and be installed on described pump body, described impeller comprises ferrous alloy impeller body and impeller body external oxidation chromium series ceramic material layer; The pump housing comprises: the silicon oxide series ceramic material layer of aluminium alloy pump body, pump housing outer surface and the titanium carbide series ceramic material layer of pump housing internal surface,
It is characterized in that, ferrous alloy impeller body chemical composition is (weight percentage): C:0.2-0.3 ﹪, Cr:11-12 ﹪, Si:1-2 ﹪, W:0.6-0.7 ﹪, Ni:0.4-0.5 ﹪, Mn:0.2-0.3 ﹪, Cu:0.2-0.3 ﹪, Ca:0.2-0.3 ﹪, V:0.1-0.2 ﹪, Al:0.08-0.09 ﹪, Sn:0.04-0.05 ﹪, Y:0.02-0.03 ﹪, Mg:0.02-0.03 ﹪, Co:0.01-0.02 ﹪, Ce:0.01-0.02 ﹪, surplus is Fe and inevitable impurity;
Ferrous alloy impeller body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast, after the demoulding, the impeller obtained is heat-treated: first heated by impeller, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 5 hours, after be cooled to 650 DEG C, cooling rate 50 DEG C/h, be incubated 3 hours, after be warming up to 800 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be again cooled to 500 DEG C, cooling rate 75 DEG C/h, be incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 75 DEG C/h, be incubated 5 hours, rear air cooling is to room temperature,
Afterwards pickling and passivation are carried out to impeller surface, wherein:
Pickling solution consists of (weight): formic acid 30-40 part; Thiocarbamide 10-20 part, nitric acid 5-10 part glycolic acid 6-7 part, alkyl imidazoline quaternary ammonium salt 4 parts, 100 parts, ethylenediamine 1-2 part, water;
Passivating solution consists of (weight): 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 20-30 part, phosphoric acid 20-30 part, polyimide 5-10 part, sodium fluoborate 2-4 part, 5 parts, sodium carbonate, 200 parts, water;
Coating chromium oxide series ceramic material is carried out to passivation posterior lobe wheel outer surface; Chromium oxide series ceramic material layer is formed by being coated in impeller outer surface, chromium oxide series ceramic material layer thickness 0.4mm, chromium oxide series ceramic material layer comprises (weight): 50 parts, chromium oxide, titanium nitride 25 parts, titanium oxide 15-20 part, Tungsten carbite 10 parts, impeller after coating is heated, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be cooled to 400 DEG C, cooling rate 50 DEG C/h, is incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, rear air cooling, to room temperature, obtains final impeller.
Aluminium alloy pump body chemical composition is (weight): Mg:10-11 ﹪, Cu:7-8 ﹪, Si:5-6 ﹪, Ni:3-4 ﹪, W:0.8-0.9 ﹪, Ba:0.6-0.7 ﹪, Zn:0.3-0.4 ﹪, Ti:0.1-0.2 ﹪, Ce:0.08-0.09 ﹪, Ag:0.07-0.08 ﹪, Fe:0.05-0.06 ﹪, Mo: 0.02-0.03 ﹪, surplus is Al and inevitable impurity;
Aluminium alloy pump body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast: smelting temperature: 760-770 DEG C, pouring temperature is 720-725 DEG C; After the demoulding, the pump housing obtained is heat-treated: first heated by the pump housing, is warming up to 400 DEG C, heating rate 50 DEG C/h, be incubated 4 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, after be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 2 hours, after be again cooled to 250 DEG C, cooling rate 25 DEG C/h, be incubated 4 hours, after be again cooled to 150 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards pickling and passivation are carried out to pump housing surface, wherein:
Pickling solution consists of (weight): acetic acid 50-60 part; 20 parts, hydrofluoric acid, propionic acid 10-20 part, glycolic acid 15 parts, alkyl imidazoline quaternary ammonium salt 1-5 part, 200 parts, ethylenediamine 1-2 part, water;
Passivating solution consists of (weight): 20 parts, nitric acid, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 10-15 part, polyimide 10 parts, sodium fluoborate 1-5 part, sodium formate 2 parts, 100 parts, water;
Coating silicon oxide series stupalith is carried out to pump housing outer surface after passivation; Silicon oxide series ceramic material layer is formed by being coated in pump housing outer surface, silicon oxide series stupalith layer thickness 0.4mm, silicon oxide series ceramic material layer comprises (weight): silica 100 parts, titanium oxide 30-40 part, silicon nitride 30-40 part, titanium nitride 20 parts, the pump housing after coating is heated, be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 5 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, is incubated 3 hours, after be again cooled to 200 DEG C, cooling rate 75 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards shelling-out of titanium carbide series ceramic material is carried out to pump housing internal surface; Titanium carbide series ceramic material layer is formed by being coated in pump housing internal surface, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material layer comprises (weight): titanium carbide 40 parts, chromium carbide 20-30 part, titanium nitride 15 parts, heats the pump housing after coating, is warming up to 450 DEG C, heating rate 25 DEG C/h, be incubated 4 hours, after be cooled to 350 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, after be again cooled to 200 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling, to room temperature, obtains the final pump housing.
The corrosion-resistant sea water pump of described one, ferrous alloy impeller body chemical composition is (weight percentage): C:0.2 ﹪, Cr:11 ﹪, Si:1 ﹪, W:0.6 ﹪, Ni:0.4 ﹪, Mn:0.2 ﹪, Cu:0.2 ﹪, Ca:0.2 ﹪, V:0.1 ﹪, Al:0.08 ﹪, Sn:0.04 ﹪, Y:0.02 ﹪, Mg:0.02 ﹪, Co:0.01 ﹪, Ce:0.01 ﹪, surplus is Fe and inevitable impurity.
The corrosion-resistant sea water pump of described one, ferrous alloy impeller body chemical composition is (weight percentage): C:0.3 ﹪, Cr:12 ﹪, Si:2 ﹪, W:0.7 ﹪, Ni:0.5 ﹪, Mn:0.3 ﹪, Cu:0.3 ﹪, Ca:0.3 ﹪, V:0.2 ﹪, Al:0.09 ﹪, Sn:0.05 ﹪, Y:0.03 ﹪, Mg:0.03 ﹪, Co:0.02 ﹪, Ce:0.02 ﹪, surplus is Fe and inevitable impurity.
The corrosion-resistant sea water pump of described one, ferrous alloy impeller body chemical composition is (weight percentage): C:0.25 ﹪, Cr:11.5 ﹪, Si:1.5 ﹪, W:0.65 ﹪, Ni:0.45 ﹪, Mn:0.25 ﹪, Cu:0.25 ﹪, Ca:0.25 ﹪, V:0.15 ﹪, Al:0.085 ﹪, Sn:0.045 ﹪, Y:0.025 ﹪, Mg:0.025 ﹪, Co:0.015 ﹪, Ce:0.015 ﹪, surplus is Fe and inevitable impurity.
The corrosion-resistant sea water pump of described one, aluminium alloy pump body chemical composition is (weight): Mg:10 ﹪, Cu:7 ﹪, Si:5 ﹪, Ni:3 ﹪, W:0.8 ﹪, Ba:0.6 ﹪, Zn:0.3 ﹪, Ti:0.1 ﹪, Ce:0.08 ﹪, Ag:0.07 ﹪, Fe:0.05 ﹪, Mo: 0.02 ﹪, surplus is Al and inevitable impurity.
The corrosion-resistant sea water pump of described one, aluminium alloy pump body chemical composition is (weight): Mg:11 ﹪, Cu:8 ﹪, Si:6 ﹪, Ni:4 ﹪, W:0.9 ﹪, Ba:0.7 ﹪, Zn:0.4 ﹪, Ti:0.2 ﹪, Ce:0.09 ﹪, Ag:0.08 ﹪, Fe:0.06 ﹪, Mo: 0.03 ﹪, surplus is Al and inevitable impurity.
The corrosion-resistant sea water pump of described one, aluminium alloy pump body chemical composition is (weight): Mg:10.5 ﹪, Cu:7.5 ﹪, Si:5.5 ﹪, Ni:3.5 ﹪, W:0.85 ﹪, Ba:0.65 ﹪, Zn:0.35 ﹪, Ti:0.15 ﹪, Ce:0.085 ﹪, Ag:0.075 ﹪, Fe:0.055 ﹪, Mo: 0.025 ﹪, surplus is Al and inevitable impurity.
The corrosion-resistant sea water pump of described one, chromium oxide series ceramic material layer comprises (weight): 50 parts, chromium oxide, titanium nitride 25 parts, titanium oxide 17 parts, Tungsten carbite 10 parts.
The corrosion-resistant sea water pump of described one, silicon oxide series ceramic material layer comprises (weight): silica 100 parts, titanium oxide 35 parts, silicon nitride 35 parts, titanium nitride 20 parts.
The corrosion-resistant sea water pump of described one, titanium carbide series ceramic material layer comprises (weight): titanium carbide 40 parts, chromium carbide 25 parts, titanium nitride 15 parts.
A manufacture method for corrosion-resistant sea water pump, it impeller comprising a pump housing and be installed on described pump body, described impeller comprises ferrous alloy impeller body and impeller body external oxidation chromium series ceramic material layer; The pump housing comprises: the silicon oxide series ceramic material layer of aluminium alloy pump body, pump housing outer surface and the titanium carbide series ceramic material layer of pump housing internal surface,
It is characterized in that, ferrous alloy impeller body chemical composition is (weight percentage): C:0.2-0.3 ﹪, Cr:11-12 ﹪, Si:1-2 ﹪, W:0.6-0.7 ﹪, Ni:0.4-0.5 ﹪, Mn:0.2-0.3 ﹪, Cu:0.2-0.3 ﹪, Ca:0.2-0.3 ﹪, V:0.1-0.2 ﹪, Al:0.08-0.09 ﹪, Sn:0.04-0.05 ﹪, Y:0.02-0.03 ﹪, Mg:0.02-0.03 ﹪, Co:0.01-0.02 ﹪, Ce:0.01-0.02 ﹪, surplus is Fe and inevitable impurity;
Ferrous alloy impeller body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast, after the demoulding, the impeller obtained is heat-treated: first heated by impeller, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 5 hours, after be cooled to 650 DEG C, cooling rate 50 DEG C/h, be incubated 3 hours, after be warming up to 800 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be again cooled to 500 DEG C, cooling rate 75 DEG C/h, be incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 75 DEG C/h, be incubated 5 hours, rear air cooling is to room temperature,
Afterwards pickling and passivation are carried out to impeller surface, wherein:
Pickling solution consists of (weight): formic acid 30-40 part; Thiocarbamide 10-20 part, nitric acid 5-10 part glycolic acid 6-7 part, alkyl imidazoline quaternary ammonium salt 4 parts, 100 parts, ethylenediamine 1-2 part, water;
Passivating solution consists of (weight): 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 20-30 part, phosphoric acid 20-30 part, polyimide 5-10 part, sodium fluoborate 2-4 part, 5 parts, sodium carbonate, 200 parts, water;
Coating chromium oxide series ceramic material is carried out to passivation posterior lobe wheel outer surface; Chromium oxide series ceramic material layer is formed by being coated in impeller outer surface, chromium oxide series ceramic material layer thickness 0.4mm, chromium oxide series ceramic material layer comprises (weight): 50 parts, chromium oxide, titanium nitride 25 parts, titanium oxide 15-20 part, Tungsten carbite 10 parts, impeller after coating is heated, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be cooled to 400 DEG C, cooling rate 50 DEG C/h, is incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, rear air cooling, to room temperature, obtains final impeller.
Aluminium alloy pump body chemical composition is (weight): Mg:10-11 ﹪, Cu:7-8 ﹪, Si:5-6 ﹪, Ni:3-4 ﹪, W:0.8-0.9 ﹪, Ba:0.6-0.7 ﹪, Zn:0.3-0.4 ﹪, Ti:0.1-0.2 ﹪, Ce:0.08-0.09 ﹪, Ag:0.07-0.08 ﹪, Fe:0.05-0.06 ﹪, Mo: 0.02-0.03 ﹪, surplus is Al and inevitable impurity;
Aluminium alloy pump body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast: smelting temperature: 760-770 DEG C, pouring temperature is 720-725 DEG C; After the demoulding, the pump housing obtained is heat-treated: first heated by the pump housing, is warming up to 400 DEG C, heating rate 50 DEG C/h, be incubated 4 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, after be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 2 hours, after be again cooled to 250 DEG C, cooling rate 25 DEG C/h, be incubated 4 hours, after be again cooled to 150 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards pickling and passivation are carried out to pump housing surface, wherein:
Pickling solution consists of (weight): acetic acid 50-60 part; 20 parts, hydrofluoric acid, propionic acid 10-20 part, glycolic acid 15 parts, alkyl imidazoline quaternary ammonium salt 1-5 part, 200 parts, ethylenediamine 1-2 part, water;
Passivating solution consists of (weight): 20 parts, nitric acid, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 10-15 part, polyimide 10 parts, sodium fluoborate 1-5 part, sodium formate 2 parts, 100 parts, water;
Coating silicon oxide series stupalith is carried out to pump housing outer surface after passivation; Silicon oxide series ceramic material layer is formed by being coated in pump housing outer surface, silicon oxide series stupalith layer thickness 0.4mm, silicon oxide series ceramic material layer comprises (weight): silica 100 parts, titanium oxide 30-40 part, silicon nitride 30-40 part, titanium nitride 20 parts, the pump housing after coating is heated, be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 5 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, is incubated 3 hours, after be again cooled to 200 DEG C, cooling rate 75 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards shelling-out of titanium carbide series ceramic material is carried out to pump housing internal surface; Titanium carbide series ceramic material layer is formed by being coated in pump housing internal surface, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material layer comprises (weight): titanium carbide 40 parts, chromium carbide 20-30 part, titanium nitride 15 parts, heats the pump housing after coating, is warming up to 450 DEG C, heating rate 25 DEG C/h, be incubated 4 hours, after be cooled to 350 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, after be again cooled to 200 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling, to room temperature, obtains the final pump housing.
Described pump housing internal surface is be transmitted medium by touching the part on pump body surface during pump inside, and pump housing remaining part is pump housing outer surface.
Pump also comprises the pump cover being covered on pump housing end, and the pump housing and pump cover are formed in cavity impeller.
Foregoing invention content is relative to the beneficial effect of prior art: 1) composition of ferro-alloy and aluminum alloy simply can reach the requirement of strength of oil pump; 2) ferro-alloy of this composition and aluminum alloy are carried out to the surface treatment procedure of pickling and passivation, avoid occurring the problems such as any surperficial stain, make acquisition surface clean and tidy; 3) by ferro-alloy and aluminum alloy surface coated ceramic material, anticorrosion, high temperature resistant, the anti-scaling property of material is improved.
Embodiment
In order to there be understanding clearly to technical characteristics of the present invention, object and effect, now describe the specific embodiment of the present invention in detail.
Embodiment 1
A kind of corrosion-resistant sea water pump, it impeller comprising a pump housing and be installed on described pump body, described impeller comprises ferrous alloy impeller body and impeller body external oxidation chromium series ceramic material layer; The pump housing comprises: the silicon oxide series ceramic material layer of aluminium alloy pump body, pump housing outer surface and the titanium carbide series ceramic material layer of pump housing internal surface,
It is characterized in that, ferrous alloy impeller body chemical composition is (weight percentage): C:0.2 ﹪, Cr:11 ﹪, Si:1 ﹪, W:0.6 ﹪, Ni:0.4 ﹪, Mn:0.2 ﹪, Cu:0.2 ﹪, Ca:0.2 ﹪, V:0.1 ﹪, Al:0.08 ﹪, Sn:0.04 ﹪, Y:0.02 ﹪, Mg:0.02 ﹪, Co:0.01 ﹪, Ce:0.01 ﹪, surplus is Fe and inevitable impurity;
Ferrous alloy impeller body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast, after the demoulding, the impeller obtained is heat-treated: first heated by impeller, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 5 hours, after be cooled to 650 DEG C, cooling rate 50 DEG C/h, be incubated 3 hours, after be warming up to 800 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be again cooled to 500 DEG C, cooling rate 75 DEG C/h, be incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 75 DEG C/h, be incubated 5 hours, rear air cooling is to room temperature,
Afterwards pickling and passivation are carried out to impeller surface, wherein:
Pickling solution consists of (weight): 30 parts, formic acid; Thiocarbamide 10 parts, nitric acid 5 parts of glycolic acids 6 parts, alkyl imidazoline quaternary ammonium salt 4 parts, ethylenediamine 1 part, 100 parts, water;
Passivating solution consists of (weight): 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 20 parts, phosphoric acid 20 parts, polyimide 5 parts, sodium fluoborate 2 parts, 5 parts, sodium carbonate, 200 parts, water;
Coating chromium oxide series ceramic material is carried out to passivation posterior lobe wheel outer surface; Chromium oxide series ceramic material layer is formed by being coated in impeller outer surface, chromium oxide series ceramic material layer thickness 0.4mm, chromium oxide series ceramic material layer comprises (weight): 50 parts, chromium oxide, titanium nitride 25 parts, titanium oxide 15 parts, Tungsten carbite 10 parts, impeller after coating is heated, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be cooled to 400 DEG C, cooling rate 50 DEG C/h, is incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, rear air cooling, to room temperature, obtains final impeller.
Aluminium alloy pump body chemical composition is (weight): Mg:10 ﹪, Cu:7 ﹪, Si:5 ﹪, Ni:3 ﹪, W:0.8 ﹪, Ba:0.6 ﹪, Zn:0.3 ﹪, Ti:0.1 ﹪, Ce:0.08 ﹪, Ag:0.07 ﹪, Fe:0.05 ﹪, Mo: 0.02 ﹪, surplus is Al and inevitable impurity;
Aluminium alloy pump body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast: smelting temperature: 760 DEG C, pouring temperature is 720 DEG C; After the demoulding, the pump housing obtained is heat-treated: first heated by the pump housing, is warming up to 400 DEG C, heating rate 50 DEG C/h, be incubated 4 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, after be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 2 hours, after be again cooled to 250 DEG C, cooling rate 25 DEG C/h, be incubated 4 hours, after be again cooled to 150 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards pickling and passivation are carried out to pump housing surface, wherein:
Pickling solution consists of (weight): acetic acid 50 parts; 20 parts, hydrofluoric acid, propionic acid 10 parts, glycolic acid 15 parts, alkyl imidazoline quaternary ammonium salt 1 part, ethylenediamine 1 part, 200 parts, water;
Passivating solution consists of (weight): 20 parts, nitric acid, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 10 parts, polyimide 10 parts, sodium fluoborate 1 part, sodium formate 2 parts, 100 parts, water;
Coating silicon oxide series stupalith is carried out to pump housing outer surface after passivation; Silicon oxide series ceramic material layer is formed by being coated in pump housing outer surface, silicon oxide series stupalith layer thickness 0.4mm, silicon oxide series ceramic material layer comprises (weight): silica 100 parts, titanium oxide 30 parts, silicon nitride 30 parts, titanium nitride 20 parts, the pump housing after coating is heated, be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 5 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, is incubated 3 hours, after be again cooled to 200 DEG C, cooling rate 75 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards shelling-out of titanium carbide series ceramic material is carried out to pump housing internal surface; Titanium carbide series ceramic material layer is formed by being coated in pump housing internal surface, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material layer comprises (weight): titanium carbide 40 parts, chromium carbide 20 parts, titanium nitride 15 parts, heats the pump housing after coating, is warming up to 450 DEG C, heating rate 25 DEG C/h, be incubated 4 hours, after be cooled to 350 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, after be again cooled to 200 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling, to room temperature, obtains the final pump housing.
Embodiment 2
A kind of corrosion-resistant sea water pump, it impeller comprising a pump housing and be installed on described pump body, described impeller comprises ferrous alloy impeller body and impeller body external oxidation chromium series ceramic material layer; The pump housing comprises: the silicon oxide series ceramic material layer of aluminium alloy pump body, pump housing outer surface and the titanium carbide series ceramic material layer of pump housing internal surface,
It is characterized in that, ferrous alloy impeller body chemical composition is (weight percentage): C:0.3 ﹪, Cr:12 ﹪, Si:2 ﹪, W:0.7 ﹪, Ni:0.5 ﹪, Mn:0.3 ﹪, Cu:0.3 ﹪, Ca:0.3 ﹪, V:0.2 ﹪, Al:0.09 ﹪, Sn:0.05 ﹪, Y:0.03 ﹪, Mg:0.03 ﹪, Co:0.02 ﹪, Ce:0.02 ﹪, surplus is Fe and inevitable impurity;
Ferrous alloy impeller body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast, after the demoulding, the impeller obtained is heat-treated: first heated by impeller, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 5 hours, after be cooled to 650 DEG C, cooling rate 50 DEG C/h, be incubated 3 hours, after be warming up to 800 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be again cooled to 500 DEG C, cooling rate 75 DEG C/h, be incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 75 DEG C/h, be incubated 5 hours, rear air cooling is to room temperature,
Afterwards pickling and passivation are carried out to impeller surface, wherein:
Pickling solution consists of (weight): 40 parts, formic acid; Thiocarbamide 20 parts, nitric acid 10 parts of glycolic acids 7 parts, alkyl imidazoline quaternary ammonium salt 4 parts, ethylenediamine 2 parts, 100 parts, water;
Passivating solution consists of (weight): 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 30 parts, phosphoric acid 30 parts, polyimide 10 parts, sodium fluoborate 4 parts, 5 parts, sodium carbonate, 200 parts, water;
Coating chromium oxide series ceramic material is carried out to passivation posterior lobe wheel outer surface; Chromium oxide series ceramic material layer is formed by being coated in impeller outer surface, chromium oxide series ceramic material layer thickness 0.4mm, chromium oxide series ceramic material layer comprises (weight): 50 parts, chromium oxide, titanium nitride 25 parts, titanium oxide 20 parts, Tungsten carbite 10 parts, impeller after coating is heated, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be cooled to 400 DEG C, cooling rate 50 DEG C/h, is incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, rear air cooling, to room temperature, obtains final impeller.
Aluminium alloy pump body chemical composition is (weight): Mg:11 ﹪, Cu:8 ﹪, Si:6 ﹪, Ni:4 ﹪, W:0.9 ﹪, Ba:0.7 ﹪, Zn:0.4 ﹪, Ti:0.2 ﹪, Ce:0.09 ﹪, Ag:0.08 ﹪, Fe:0.06 ﹪, Mo: 0.03 ﹪, surplus is Al and inevitable impurity;
Aluminium alloy pump body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast: smelting temperature: 770 DEG C, pouring temperature is 725 DEG C; After the demoulding, the pump housing obtained is heat-treated: first heated by the pump housing, is warming up to 400 DEG C, heating rate 50 DEG C/h, be incubated 4 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, after be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 2 hours, after be again cooled to 250 DEG C, cooling rate 25 DEG C/h, be incubated 4 hours, after be again cooled to 150 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards pickling and passivation are carried out to pump housing surface, wherein:
Pickling solution consists of (weight): acetic acid 60 parts; 20 parts, hydrofluoric acid, propionic acid 20 parts, glycolic acid 15 parts, alkyl imidazoline quaternary ammonium salt 5 parts, ethylenediamine 2 parts, 200 parts, water;
Passivating solution consists of (weight): 20 parts, nitric acid, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 15 parts, polyimide 10 parts, sodium fluoborate 5 parts, sodium formate 2 parts, 100 parts, water;
Coating silicon oxide series stupalith is carried out to pump housing outer surface after passivation; Silicon oxide series ceramic material layer is formed by being coated in pump housing outer surface, silicon oxide series stupalith layer thickness 0.4mm, silicon oxide series ceramic material layer comprises (weight): silica 100 parts, titanium oxide 40 parts, silicon nitride 40 parts, titanium nitride 20 parts, the pump housing after coating is heated, be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 5 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, is incubated 3 hours, after be again cooled to 200 DEG C, cooling rate 75 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards shelling-out of titanium carbide series ceramic material is carried out to pump housing internal surface; Titanium carbide series ceramic material layer is formed by being coated in pump housing internal surface, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material layer comprises (weight): titanium carbide 40 parts, chromium carbide 30 parts, titanium nitride 15 parts, heats the pump housing after coating, is warming up to 450 DEG C, heating rate 25 DEG C/h, be incubated 4 hours, after be cooled to 350 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, after be again cooled to 200 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling, to room temperature, obtains the final pump housing.
Embodiment 3
A kind of corrosion-resistant sea water pump, it impeller comprising a pump housing and be installed on described pump body, described impeller comprises ferrous alloy impeller body and impeller body external oxidation chromium series ceramic material layer; The pump housing comprises: the silicon oxide series ceramic material layer of aluminium alloy pump body, pump housing outer surface and the titanium carbide series ceramic material layer of pump housing internal surface,
It is characterized in that, ferrous alloy impeller body chemical composition is (weight percentage): C:0.25 ﹪, Cr:11.5 ﹪, Si:1.5 ﹪, W:0.65 ﹪, Ni:0.45 ﹪, Mn:0.25 ﹪, Cu:0.25 ﹪, Ca:0.25 ﹪, V:0.15 ﹪, Al:0.085 ﹪, Sn:0.045 ﹪, Y:0.025 ﹪, Mg:0.025 ﹪, Co:0.015 ﹪, Ce:0.015 ﹪, surplus is Fe and inevitable impurity;
Ferrous alloy impeller body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast, after the demoulding, the impeller obtained is heat-treated: first heated by impeller, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 5 hours, after be cooled to 650 DEG C, cooling rate 50 DEG C/h, be incubated 3 hours, after be warming up to 800 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be again cooled to 500 DEG C, cooling rate 75 DEG C/h, be incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 75 DEG C/h, be incubated 5 hours, rear air cooling is to room temperature,
Afterwards pickling and passivation are carried out to impeller surface, wherein:
Pickling solution consists of (weight): 35 parts, formic acid; Thiocarbamide 15 parts, nitric acid 7 parts of glycolic acids 6.5 parts, alkyl imidazoline quaternary ammonium salt 4 parts, ethylenediamine 1.5 parts, 100 parts, water;
Passivating solution consists of (weight): 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 25 parts, phosphoric acid 25 parts, polyimide 7 parts, sodium fluoborate 3 parts, 5 parts, sodium carbonate, 200 parts, water;
Coating chromium oxide series ceramic material is carried out to passivation posterior lobe wheel outer surface; Chromium oxide series ceramic material layer is formed by being coated in impeller outer surface, chromium oxide series ceramic material layer thickness 0.4mm, chromium oxide series ceramic material layer comprises (weight): 50 parts, chromium oxide, titanium nitride 25 parts, titanium oxide 17 parts, Tungsten carbite 10 parts, impeller after coating is heated, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be cooled to 400 DEG C, cooling rate 50 DEG C/h, is incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, rear air cooling, to room temperature, obtains final impeller.
Aluminium alloy pump body chemical composition is (weight): Mg:10.5 ﹪, Cu:7.5 ﹪, Si:5.5 ﹪, Ni:3.5 ﹪, W:0.85 ﹪, Ba:0.65 ﹪, Zn:0.35 ﹪, Ti:0.15 ﹪, Ce:0.085 ﹪, Ag:0.075 ﹪, Fe:0.055 ﹪, Mo: 0.025 ﹪, surplus is Al and inevitable impurity;
Aluminium alloy pump body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast: smelting temperature: 765 DEG C, pouring temperature is 723 DEG C; After the demoulding, the pump housing obtained is heat-treated: first heated by the pump housing, is warming up to 400 DEG C, heating rate 50 DEG C/h, be incubated 4 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, after be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 2 hours, after be again cooled to 250 DEG C, cooling rate 25 DEG C/h, be incubated 4 hours, after be again cooled to 150 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards pickling and passivation are carried out to pump housing surface, wherein:
Pickling solution consists of (weight): acetic acid 55 parts; 20 parts, hydrofluoric acid, propionic acid 15 parts, glycolic acid 15 parts, alkyl imidazoline quaternary ammonium salt 3 parts, ethylenediamine 1.5 parts, 200 parts, water;
Passivating solution consists of (weight): 20 parts, nitric acid, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 13 parts, polyimide 10 parts, sodium fluoborate 3 parts, sodium formate 2 parts, 100 parts, water;
Coating silicon oxide series stupalith is carried out to pump housing outer surface after passivation; Silicon oxide series ceramic material layer is formed by being coated in pump housing outer surface, silicon oxide series stupalith layer thickness 0.4mm, silicon oxide series ceramic material layer comprises (weight): silica 100 parts, titanium oxide 35 parts, silicon nitride 35 parts, titanium nitride 20 parts, the pump housing after coating is heated, be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 5 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, is incubated 3 hours, after be again cooled to 200 DEG C, cooling rate 75 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards shelling-out of titanium carbide series ceramic material is carried out to pump housing internal surface; Titanium carbide series ceramic material layer is formed by being coated in pump housing internal surface, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material layer comprises (weight): titanium carbide 40 parts, chromium carbide 25 parts, titanium nitride 15 parts, heats the pump housing after coating, is warming up to 450 DEG C, heating rate 25 DEG C/h, be incubated 4 hours, after be cooled to 350 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, after be again cooled to 200 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling, to room temperature, obtains the final pump housing.
Embodiment 4
A kind of corrosion-resistant sea water pump, it impeller comprising a pump housing and be installed on described pump body, described impeller comprises ferrous alloy impeller body and impeller body external oxidation chromium series ceramic material layer; The pump housing comprises: the silicon oxide series ceramic material layer of aluminium alloy pump body, pump housing outer surface and the titanium carbide series ceramic material layer of pump housing internal surface,
It is characterized in that, ferrous alloy impeller body chemical composition is (weight percentage): C:0.23 ﹪, Cr:11.1 ﹪, Si:1.3 ﹪, W:0.62 ﹪, Ni:0.42 ﹪, Mn:0.24 ﹪, Cu:0.23 ﹪, Ca:0.24 ﹪, V:0.14 ﹪, Al:0.083 ﹪, Sn:0.043 ﹪, Y:0.022 ﹪, Mg:0.021 ﹪, Co:0.012 ﹪, Ce:0.011 ﹪, surplus is Fe and inevitable impurity;
Ferrous alloy impeller body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast, after the demoulding, the impeller obtained is heat-treated: first heated by impeller, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 5 hours, after be cooled to 650 DEG C, cooling rate 50 DEG C/h, be incubated 3 hours, after be warming up to 800 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be again cooled to 500 DEG C, cooling rate 75 DEG C/h, be incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 75 DEG C/h, be incubated 5 hours, rear air cooling is to room temperature,
Afterwards pickling and passivation are carried out to impeller surface, wherein:
Pickling solution consists of (weight): 32 parts, formic acid; Thiocarbamide 11 parts, nitric acid 6 parts of glycolic acids 6.2 parts, alkyl imidazoline quaternary ammonium salt 4 parts, ethylenediamine 1.3 parts, 100 parts, water;
Passivating solution consists of (weight): 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 22 parts, phosphoric acid 23 parts, polyimide 6 parts, sodium fluoborate 2.4 parts, 5 parts, sodium carbonate, 200 parts, water;
Coating chromium oxide series ceramic material is carried out to passivation posterior lobe wheel outer surface; Chromium oxide series ceramic material layer is formed by being coated in impeller outer surface, chromium oxide series ceramic material layer thickness 0.4mm, chromium oxide series ceramic material layer comprises (weight): 50 parts, chromium oxide, titanium nitride 25 parts, titanium oxide 16 parts, Tungsten carbite 10 parts, impeller after coating is heated, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be cooled to 400 DEG C, cooling rate 50 DEG C/h, is incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, rear air cooling, to room temperature, obtains final impeller.
Aluminium alloy pump body chemical composition is (weight): Mg:10.1 ﹪, Cu:7.3 ﹪, Si:5.3 ﹪, Ni:3.2 ﹪, W:0.83 ﹪, Ba:0.64 ﹪, Zn:0.33 ﹪, Ti:0.12 ﹪, Ce:0.083 ﹪, Ag:0.072 ﹪, Fe:0.051 ﹪, Mo: 0.021 ﹪, surplus is Al and inevitable impurity;
Aluminium alloy pump body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast: smelting temperature: 762 DEG C, pouring temperature is 721 DEG C; After the demoulding, the pump housing obtained is heat-treated: first heated by the pump housing, is warming up to 400 DEG C, heating rate 50 DEG C/h, be incubated 4 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, after be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 2 hours, after be again cooled to 250 DEG C, cooling rate 25 DEG C/h, be incubated 4 hours, after be again cooled to 150 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards pickling and passivation are carried out to pump housing surface, wherein:
Pickling solution consists of (weight): acetic acid 52 parts; 20 parts, hydrofluoric acid, propionic acid 13 parts, glycolic acid 15 parts, alkyl imidazoline quaternary ammonium salt 2 parts, ethylenediamine 1.1 parts, 200 parts, water;
Passivating solution consists of (weight): 20 parts, nitric acid, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 11 parts, polyimide 10 parts, sodium fluoborate 2 parts, sodium formate 2 parts, 100 parts, water;
Coating silicon oxide series stupalith is carried out to pump housing outer surface after passivation; Silicon oxide series ceramic material layer is formed by being coated in pump housing outer surface, silicon oxide series stupalith layer thickness 0.4mm, silicon oxide series ceramic material layer comprises (weight): silica 100 parts, titanium oxide 31 parts, silicon nitride 32 parts, titanium nitride 20 parts, the pump housing after coating is heated, be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 5 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, is incubated 3 hours, after be again cooled to 200 DEG C, cooling rate 75 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards shelling-out of titanium carbide series ceramic material is carried out to pump housing internal surface; Titanium carbide series ceramic material layer is formed by being coated in pump housing internal surface, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material layer comprises (weight): titanium carbide 40 parts, chromium carbide 23 parts, titanium nitride 15 parts, heats the pump housing after coating, is warming up to 450 DEG C, heating rate 25 DEG C/h, be incubated 4 hours, after be cooled to 350 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, after be again cooled to 200 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling, to room temperature, obtains the final pump housing.
Embodiment 5
A kind of corrosion-resistant sea water pump, it impeller comprising a pump housing and be installed on described pump body, described impeller comprises ferrous alloy impeller body and impeller body external oxidation chromium series ceramic material layer; The pump housing comprises: the silicon oxide series ceramic material layer of aluminium alloy pump body, pump housing outer surface and the titanium carbide series ceramic material layer of pump housing internal surface,
It is characterized in that, ferrous alloy impeller body chemical composition is (weight percentage): C:0.26 ﹪, Cr:11.7 ﹪, Si:1.7 ﹪, W:0.68 ﹪, Ni:0.49 ﹪, Mn:0.28 ﹪, Cu:0.29 ﹪, Ca:0.27 ﹪, V:0.18 ﹪, Al:0.089 ﹪, Sn:0.048 ﹪, Y:0.027 ﹪, Mg:0.028 ﹪, Co:0.017 ﹪, Ce:0.018 ﹪, surplus is Fe and inevitable impurity;
Ferrous alloy impeller body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast, after the demoulding, the impeller obtained is heat-treated: first heated by impeller, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 5 hours, after be cooled to 650 DEG C, cooling rate 50 DEG C/h, be incubated 3 hours, after be warming up to 800 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be again cooled to 500 DEG C, cooling rate 75 DEG C/h, be incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 75 DEG C/h, be incubated 5 hours, rear air cooling is to room temperature,
Afterwards pickling and passivation are carried out to impeller surface, wherein:
Pickling solution consists of (weight): 37 parts, formic acid; Thiocarbamide 18 parts, nitric acid 9 parts of glycolic acids 6.7 parts, alkyl imidazoline quaternary ammonium salt 4 parts, ethylenediamine 1.8 parts, 100 parts, water;
Passivating solution consists of (weight): 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 28 parts, phosphoric acid 27 parts, polyimide 9 parts, sodium fluoborate 3.7 parts, 5 parts, sodium carbonate, 200 parts, water;
Coating chromium oxide series ceramic material is carried out to passivation posterior lobe wheel outer surface; Chromium oxide series ceramic material layer is formed by being coated in impeller outer surface, chromium oxide series ceramic material layer thickness 0.4mm, chromium oxide series ceramic material layer comprises (weight): 50 parts, chromium oxide, titanium nitride 25 parts, titanium oxide 19 parts, Tungsten carbite 10 parts, impeller after coating is heated, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be cooled to 400 DEG C, cooling rate 50 DEG C/h, is incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, rear air cooling, to room temperature, obtains final impeller.
Aluminium alloy pump body chemical composition is (weight): Mg:10.8 ﹪, Cu:7.9 ﹪, Si:5.7 ﹪, Ni:3.8 ﹪, W:0.87 ﹪, Ba:0.66 ﹪, Zn:0.36 ﹪, Ti:0.17 ﹪, Ce:0.087 ﹪, Ag:0.078 ﹪, Fe:0.059 ﹪, Mo: 0.029 ﹪, surplus is Al and inevitable impurity;
Aluminium alloy pump body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast: smelting temperature: 769 DEG C, pouring temperature is 724 DEG C; After the demoulding, the pump housing obtained is heat-treated: first heated by the pump housing, is warming up to 400 DEG C, heating rate 50 DEG C/h, be incubated 4 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, after be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 2 hours, after be again cooled to 250 DEG C, cooling rate 25 DEG C/h, be incubated 4 hours, after be again cooled to 150 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards pickling and passivation are carried out to pump housing surface, wherein:
Pickling solution consists of (weight): acetic acid 57 parts; 20 parts, hydrofluoric acid, propionic acid 18 parts, glycolic acid 15 parts, alkyl imidazoline quaternary ammonium salt 4 parts, ethylenediamine 1.7 parts, 200 parts, water;
Passivating solution consists of (weight): 20 parts, nitric acid, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 14 parts, polyimide 10 parts, sodium fluoborate 4 parts, sodium formate 2 parts, 100 parts, water;
Coating silicon oxide series stupalith is carried out to pump housing outer surface after passivation; Silicon oxide series ceramic material layer is formed by being coated in pump housing outer surface, silicon oxide series stupalith layer thickness 0.4mm, silicon oxide series ceramic material layer comprises (weight): silica 100 parts, titanium oxide 38 parts, silicon nitride 36 parts, titanium nitride 20 parts, the pump housing after coating is heated, be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 5 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, is incubated 3 hours, after be again cooled to 200 DEG C, cooling rate 75 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards shelling-out of titanium carbide series ceramic material is carried out to pump housing internal surface; Titanium carbide series ceramic material layer is formed by being coated in pump housing internal surface, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material layer comprises (weight): titanium carbide 40 parts, chromium carbide 27 parts, titanium nitride 15 parts, heats the pump housing after coating, is warming up to 450 DEG C, heating rate 25 DEG C/h, be incubated 4 hours, after be cooled to 350 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, after be again cooled to 200 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling, to room temperature, obtains the final pump housing.
Claims (10)
1. a corrosion-resistant sea water pump, it impeller comprising a pump housing and be installed on described pump body, described impeller comprises ferrous alloy impeller body and impeller body external oxidation chromium series ceramic material layer; The pump housing comprises: the silicon oxide series ceramic material layer of aluminium alloy pump body, pump housing outer surface and the titanium carbide series ceramic material layer of pump housing internal surface,
It is characterized in that, ferrous alloy impeller body chemical composition is (weight percentage): C:0.2-0.3 ﹪, Cr:11-12 ﹪, Si:1-2 ﹪, W:0.6-0.7 ﹪, Ni:0.4-0.5 ﹪, Mn:0.2-0.3 ﹪, Cu:0.2-0.3 ﹪, Ca:0.2-0.3 ﹪, V:0.1-0.2 ﹪, Al:0.08-0.09 ﹪, Sn:0.04-0.05 ﹪, Y:0.02-0.03 ﹪, Mg:0.02-0.03 ﹪, Co:0.01-0.02 ﹪, Ce:0.01-0.02 ﹪, surplus is Fe and inevitable impurity;
Ferrous alloy impeller body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast, after the demoulding, the impeller obtained is heat-treated: first heated by impeller, be warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 5 hours, after be cooled to 650 DEG C, cooling rate 50 DEG C/h, be incubated 3 hours, after be warming up to 800 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be again cooled to 500 DEG C, cooling rate 75 DEG C/h, be incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 75 DEG C/h, be incubated 5 hours, rear air cooling is to room temperature,
Afterwards pickling and passivation are carried out to impeller surface, wherein:
Pickling solution consists of (weight): formic acid 30-40 part; Thiocarbamide 10-20 part, nitric acid 5-10 part glycolic acid 6-7 part, alkyl imidazoline quaternary ammonium salt 4 parts, 100 parts, ethylenediamine 1-2 part, water;
Passivating solution consists of (weight): 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 20-30 part, phosphoric acid 20-30 part, polyimide 5-10 part, sodium fluoborate 2-4 part, 5 parts, sodium carbonate, 200 parts, water;
Coating chromium oxide series ceramic material is carried out to passivation posterior lobe wheel outer surface; Chromium oxide series ceramic material layer is formed by being coated in impeller outer surface, chromium oxide series ceramic material layer thickness 0.4mm, chromium oxide series ceramic material layer comprises (weight): 50 parts, chromium oxide, titanium nitride 25 parts, titanium oxide 15-20 part, Tungsten carbite 10 parts, impeller after coating is heated, is warming up to 750 DEG C, heating rate 100 DEG C/h, be incubated 4 hours, after be cooled to 400 DEG C, cooling rate 50 DEG C/h, be incubated 7 hours, after be again cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, rear air cooling is to room temperature, obtain final impeller
Aluminium alloy pump body chemical composition is (weight): Mg:10-11 ﹪, Cu:7-8 ﹪, Si:5-6 ﹪, Ni:3-4 ﹪, W:0.8-0.9 ﹪, Ba:0.6-0.7 ﹪, Zn:0.3-0.4 ﹪, Ti:0.1-0.2 ﹪, Ce:0.08-0.09 ﹪, Ag:0.07-0.08 ﹪, Fe:0.05-0.06 ﹪, Mo: 0.02-0.03 ﹪, surplus is Al and inevitable impurity;
Aluminium alloy pump body preparation method: comprise the following steps: according to aforementioned proportion alloyage, raw material melting, cast: smelting temperature: 760-770 DEG C, pouring temperature is 720-725 DEG C; After the demoulding, the pump housing obtained is heat-treated: first heated by the pump housing, is warming up to 400 DEG C, heating rate 50 DEG C/h, be incubated 4 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, be incubated 5 hours, after be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 2 hours, after be again cooled to 250 DEG C, cooling rate 25 DEG C/h, be incubated 4 hours, after be again cooled to 150 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards pickling and passivation are carried out to pump housing surface, wherein:
Pickling solution consists of (weight): acetic acid 50-60 part; 20 parts, hydrofluoric acid, propionic acid 10-20 part, glycolic acid 15 parts, alkyl imidazoline quaternary ammonium salt 1-5 part, 200 parts, ethylenediamine 1-2 part, water;
Passivating solution consists of (weight): 20 parts, nitric acid, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 10-15 part, polyimide 10 parts, sodium fluoborate 1-5 part, sodium formate 2 parts, 100 parts, water;
Coating silicon oxide series stupalith is carried out to pump housing outer surface after passivation; Silicon oxide series ceramic material layer is formed by being coated in pump housing outer surface, silicon oxide series stupalith layer thickness 0.4mm, silicon oxide series ceramic material layer comprises (weight): silica 100 parts, titanium oxide 30-40 part, silicon nitride 30-40 part, titanium nitride 20 parts, the pump housing after coating is heated, be warming up to 450 DEG C, heating rate 50 DEG C/h, be incubated 5 hours, after be cooled to 300 DEG C, cooling rate 25 DEG C/h, is incubated 3 hours, after be again cooled to 200 DEG C, cooling rate 75 DEG C/h, be incubated 4 hours, rear air cooling is to room temperature
Afterwards shelling-out of titanium carbide series ceramic material is carried out to pump housing internal surface; Titanium carbide series ceramic material layer is formed by being coated in pump housing internal surface, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material layer comprises (weight): titanium carbide 40 parts, chromium carbide 20-30 part, titanium nitride 15 parts, heats the pump housing after coating, is warming up to 450 DEG C, heating rate 25 DEG C/h, be incubated 4 hours, after be cooled to 350 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, after be again cooled to 200 DEG C, cooling rate 50 DEG C/h, be incubated 4 hours, rear air cooling, to room temperature, obtains the final pump housing.
2. a kind of corrosion-resistant sea water pump as claimed in claim 1, ferrous alloy impeller body chemical composition is (weight percentage): C:0.2 ﹪, Cr:11 ﹪, Si:1 ﹪, W:0.6 ﹪, Ni:0.4 ﹪, Mn:0.2 ﹪, Cu:0.2 ﹪, Ca:0.2 ﹪, V:0.1 ﹪, Al:0.08 ﹪, Sn:0.04 ﹪, Y:0.02 ﹪, Mg:0.02 ﹪, Co:0.01 ﹪, Ce:0.01 ﹪, surplus is Fe and inevitable impurity.
3. a kind of corrosion-resistant sea water pump as claimed in claim 1, ferrous alloy impeller body chemical composition is (weight percentage): C:0.3 ﹪, Cr:12 ﹪, Si:2 ﹪, W:0.7 ﹪, Ni:0.5 ﹪, Mn:0.3 ﹪, Cu:0.3 ﹪, Ca:0.3 ﹪, V:0.2 ﹪, Al:0.09 ﹪, Sn:0.05 ﹪, Y:0.03 ﹪, Mg:0.03 ﹪, Co:0.02 ﹪, Ce:0.02 ﹪, surplus is Fe and inevitable impurity.
4. a kind of corrosion-resistant sea water pump as claimed in claim 1, ferrous alloy impeller body chemical composition is (weight percentage): C:0.25 ﹪, Cr:11.5 ﹪, Si:1.5 ﹪, W:0.65 ﹪, Ni:0.45 ﹪, Mn:0.25 ﹪, Cu:0.25 ﹪, Ca:0.25 ﹪, V:0.15 ﹪, Al:0.085 ﹪, Sn:0.045 ﹪, Y:0.025 ﹪, Mg:0.025 ﹪, Co:0.015 ﹪, Ce:0.015 ﹪, surplus is Fe and inevitable impurity.
5. a kind of corrosion-resistant sea water pump as claimed in claim 1, aluminium alloy pump body chemical composition is (weight): Mg:10 ﹪, Cu:7 ﹪, Si:5 ﹪, Ni:3 ﹪, W:0.8 ﹪, Ba:0.6 ﹪, Zn:0.3 ﹪, Ti:0.1 ﹪, Ce:0.08 ﹪, Ag:0.07 ﹪, Fe:0.05 ﹪, Mo: 0.02 ﹪, surplus is Al and inevitable impurity.
6. a kind of corrosion-resistant sea water pump as claimed in claim 1, aluminium alloy pump body chemical composition is (weight): Mg:11 ﹪, Cu:8 ﹪, Si:6 ﹪, Ni:4 ﹪, W:0.9 ﹪, Ba:0.7 ﹪, Zn:0.4 ﹪, Ti:0.2 ﹪, Ce:0.09 ﹪, Ag:0.08 ﹪, Fe:0.06 ﹪, Mo: 0.03 ﹪, surplus is Al and inevitable impurity.
7. a kind of corrosion-resistant sea water pump as claimed in claim 1, aluminium alloy pump body chemical composition is (weight): Mg:10.5 ﹪, Cu:7.5 ﹪, Si:5.5 ﹪, Ni:3.5 ﹪, W:0.85 ﹪, Ba:0.65 ﹪, Zn:0.35 ﹪, Ti:0.15 ﹪, Ce:0.085 ﹪, Ag:0.075 ﹪, Fe:0.055 ﹪, Mo: 0.025 ﹪, surplus is Al and inevitable impurity.
8. a kind of corrosion-resistant sea water pump as claimed in claim 1, chromium oxide series ceramic material layer comprises (weight): 50 parts, chromium oxide, titanium nitride 25 parts, titanium oxide 17 parts, Tungsten carbite 10 parts.
9. a kind of corrosion-resistant sea water pump as claimed in claim 1, silicon oxide series ceramic material layer comprises (weight): silica 100 parts, titanium oxide 35 parts, silicon nitride 35 parts, titanium nitride 20 parts.
10. the corrosion-resistant sea water pump of the one as described in claim 1-10, titanium carbide series ceramic material layer comprises (weight): titanium carbide 40 parts, chromium carbide 25 parts, titanium nitride 15 parts.
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| CN105039893A (en) * | 2015-08-27 | 2015-11-11 | 无锡华虹信息科技有限公司 | Multi-rotation electric actuator and treating technology thereof |
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| CN105970086A (en) * | 2016-06-29 | 2016-09-28 | 巢湖鹏远金属焊管有限公司 | Steel for high-intensity and corrosion-resistant longitudinal welded pipe |
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| CN110578087A (en) * | 2019-08-23 | 2019-12-17 | 徐州东坤耐磨材料有限公司 | impeller for impeller pump |
| CN111765033A (en) * | 2019-04-02 | 2020-10-13 | 南京华电节能环保设备有限公司 | Impeller for high-temperature slag recovery power generation |
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| CN105039893A (en) * | 2015-08-27 | 2015-11-11 | 无锡华虹信息科技有限公司 | Multi-rotation electric actuator and treating technology thereof |
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| CN105463274A (en) * | 2015-12-11 | 2016-04-06 | 滁州市品诚金属制品有限公司 | Wear-resisting aluminum alloy and producing method thereof |
| CN105463274B (en) * | 2015-12-11 | 2017-07-07 | 滁州市品诚金属制品有限公司 | A kind of production method of wear-resistant aluminum alloy |
| CN105970086A (en) * | 2016-06-29 | 2016-09-28 | 巢湖鹏远金属焊管有限公司 | Steel for high-intensity and corrosion-resistant longitudinal welded pipe |
| CN107254630A (en) * | 2017-06-11 | 2017-10-17 | 太仓捷公精密金属材料有限公司 | A kind of high-performance antifriction metal friction material |
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| CN111765033A (en) * | 2019-04-02 | 2020-10-13 | 南京华电节能环保设备有限公司 | Impeller for high-temperature slag recovery power generation |
| CN111765033B (en) * | 2019-04-02 | 2021-12-17 | 南京华电节能环保设备有限公司 | Impeller for high-temperature slag recovery power generation |
| CN110578087A (en) * | 2019-08-23 | 2019-12-17 | 徐州东坤耐磨材料有限公司 | impeller for impeller pump |
| CN112593147A (en) * | 2020-11-18 | 2021-04-02 | 遵义拓特铸锻有限公司 | Chemical pump shell and casting mold and casting method thereof |
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