CN103643164A - Red-hardness high alloy steel material for pump valves and preparation method thereof - Google Patents
Red-hardness high alloy steel material for pump valves and preparation method thereof Download PDFInfo
- Publication number
- CN103643164A CN103643164A CN201310558319.1A CN201310558319A CN103643164A CN 103643164 A CN103643164 A CN 103643164A CN 201310558319 A CN201310558319 A CN 201310558319A CN 103643164 A CN103643164 A CN 103643164A
- Authority
- CN
- China
- Prior art keywords
- speed
- warming
- powder
- insulation
- steel material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims description 8
- 229910000851 Alloy steel Inorganic materials 0.000 title abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000007670 refining Methods 0.000 claims abstract description 19
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 12
- 229910052742 iron Inorganic materials 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 229910052729 chemical element Inorganic materials 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 239000011651 chromium Substances 0.000 claims abstract description 7
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 239000010703 silicon Substances 0.000 claims abstract description 7
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 7
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 239000011733 molybdenum Substances 0.000 claims abstract description 4
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 4
- 239000010955 niobium Substances 0.000 claims abstract description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 18
- 238000010792 warming Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000005275 alloying Methods 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 12
- 229910000805 Pig iron Inorganic materials 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 6
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 3
- 239000002956 ash Substances 0.000 claims description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 3
- 229910052923 celestite Inorganic materials 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 3
- 238000006477 desulfuration reaction Methods 0.000 claims description 3
- 230000023556 desulfurization Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 239000010436 fluorite Substances 0.000 claims description 3
- 239000010977 jade Substances 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- 229910021392 nanocarbon Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- 229940001516 sodium nitrate Drugs 0.000 claims description 3
- 235000010344 sodium nitrate Nutrition 0.000 claims description 3
- 239000004317 sodium nitrate Substances 0.000 claims description 3
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- UBXAKNTVXQMEAG-UHFFFAOYSA-L strontium sulfate Chemical compound [Sr+2].[O-]S([O-])(=O)=O UBXAKNTVXQMEAG-UHFFFAOYSA-L 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
A red-hardness high alloy steel material for pump valves comprises the following chemical element components by mass percent: 0.2-0.4% of carbon, 0.6-0.9% of silicon, 1.7-1.9% of manganese, 2.1-2.4% of molybdenum,1.6-1.8% of chromium, 0.02-0.04% of vanadium, 0.02-0.05% of nickel, 0.1-0.15% of niobium, 0.04-0.06% of Ta, not more than 0.04% of S, not more than 0.04% of P, and the balance of iron. The alloy steel of the invention not only has high hardness and good red hardness, but also has good toughness and good wear resistance. The method of the invention partly adopts scrap iron as a raw material; secondary refining is performed; and the comprehensive mechanical properties are improved. The alloy steel of the invention is suitable for high-wear rate parts used at high temperature, such as pump shafts, pipelines, valves and the like. The method of the invention adopts a refining agent in the casting production, which significantly improves the yield, especially reduces the degree of porosity in casting by 1-2 degrees, and controls the oxide inclusion level at about grade two.
Description
Technical field
The present invention relates to metallic substance preparation field, relate in particular to red hardness high quality steel material and preparation method thereof for a kind of pump valve.
Background technology
The environment of pump valve work is various, badly, very high to the requirement of material, the steel alloy that pump valve is used at present has varied, technology has very much progress, but still have a lot of problems to exist, as wear resistance, hardness, rustless property, corrosion resistance nature, high and low temperature resistance, fragility, toughness etc., in a lot of occasions, can't meet the requirement of production, also require further improvement, to enhance productivity, reduce costs, improve security, for high-quality precision and sophisticated technology development provides safeguard, for social development provides power, task is also very arduous.
Summary of the invention
The object of the present invention is to provide red hardness high quality steel material and preparation method thereof for a kind of pump valve, this alloy material has advantages of that high rigidity, red hardness are good, shock-resistant, wear-resisting.
Technical scheme of the present invention is as follows:
A red hardness high quality steel material for pump valve, is characterized in that: chemical element composition and mass percent thereof that it contains are: carbon 0.2-0.4, silicon 0.6-0.9, manganese 1.7-1.9, molybdenum 2.1-2.4, chromium 1.6-1.8, vanadium 0.02-0.04, nickel 0.02-0.05, niobium 0.1-0.15, Ta0.04-0.06, S≤0.04, P≤0.04, surplus are iron.
The production method of red hardness high quality steel material for described pump valve, is characterized in that:
(1), preparing the pig iron and scrap iron originates as ferrous substrate in 1:1-2 ratio, the pig iron is added to drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add scrap iron fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove, be: (1) silicon, nickel, chromium; (2) manganese, vanadium; (3) other remaining components; The timed interval that each batch drops into element is 23-26 minute, after feeding intake, stirs.
Described casting postheat treatment is: first by room temperature, with 210-220 ℃/h of speed, be warming up to 500-510 ℃, insulation 60-70 minute, with 210-220 ℃/h of speed, be warming up to 700-710 ℃ again, insulation 60-70 minute, with 170-180 ℃/h of speed, be warming up to 925-940 ℃ again, insulation 3-4 hour; With 170-180 ℃/h of speed, be cooled to 600-610 ℃ again, then be warming up to 700-710 ℃ with 210-220 ℃/h of speed, then be cooled to 480-500 ℃ with 170-180 ℃/h of speed, insulation 70-80 minute; With 170-180 ℃/h of speed, be cooled to 220-230 ℃ again, insulation 2-3 hour; With 210-220 ℃/h of speed, be warming up to 330-350 ℃ again, then be cooled to 200-210 ℃ with 150-160 ℃/h of speed, then be warming up to 535-550 ℃ with 180-190 ℃/h of speed, insulation 2-3 hour, takes out air cooling and get final product.
Described refining agent is made by the raw material of following weight part: instrument comminuted steel shot 30-40, Tai-Ace S 150 3-4, fluorite 5-6, manganese oxide 1-2, Potassium tripolyphosphate 1-2, celestite powder 2-3, stalk ashes 1-2, jade powder 3-4, montmorillonite 1-2, SODIUMNITRATE 3-4, Calcium Fluoride (Fluorspan) 1-2; Preparation method mixes each raw material, is heated to molten state, then, is poured into Quench in pure water, then is ground into 100-200 order powder; Gained powder is added and is equivalent to the silane resin acceptor kh-550 of powder weight 2-3%, the nano-carbon powder of 1-2%, after mixing, under 8-15Mpa, be pressed into base, then, at 900-950 ℃, calcine 3-4 hour, cooling after, be ground into again 150-250 order powder, obtain.
Beneficial effect of the present invention
Steel alloy of the present invention not only has high hardness, and red hardness is good, but also has good toughness, and wear resisting property is good.The present invention uses part scrap iron as raw material, and through secondary refining, rationally controls casting postheat treatment temperature, and throwing raw materials, makes more stable uniform of alloy quality in batches, improves comprehensive mechanical property.Steel alloy of the present invention is applicable to the high parts of wear rate such as the pump shaft, pipeline, valve of high temperature service.Refining agent of the present invention is for Foundry Production, and the degree of porosity obviously improving in yield rate, particularly foundry goods reduces 1-2 degree, can not produce pore at cast(ing) surface, and trapped oxide also obviously reduces, and oxide inclusion is 2 grades of left and right.
Embodiment
A red hardness high quality steel material for pump valve, chemical element composition and mass percent thereof that it contains are: carbon 0.2-0.4, silicon 0.6-0.9, manganese 1.7-1.9, molybdenum 2.1-2.4, chromium 1.6-1.8, vanadium 0.02-0.04, nickel 0.02-0.05, niobium 0.1-0.15, Ta0.04-0.06, S≤0.04, P≤0.04, surplus are iron.
Described pump valve is as follows by the production method of red hardness high quality steel material:
(1), preparing the pig iron and scrap iron originates as ferrous substrate in 1:1.5 ratio, the pig iron is added to drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add scrap iron fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove, be: (1) silicon, nickel, chromium; (2) manganese, vanadium; (3) other remaining components; The timed interval that each batch drops into element is 25 minutes, after feeding intake, stirs.
Described casting postheat treatment is: first by room temperature, with 215 ℃/h of speed, be warming up to 505 ℃, be incubated 65 minutes, then be warming up to 705 ℃ with 215 ℃/h of speed, be incubated 65 minutes, then be warming up to 930 ℃ with 175 ℃/h of speed, be incubated 3.5 hours; With 175 ℃/h of speed, be cooled to 605 ℃ again, then be warming up to 705 ℃ with 215 ℃/h of speed, then be cooled to 490 ℃ with 175 ℃/h of speed, be incubated 76 minutes; With 176 ℃/h of speed, be cooled to 225 ℃ again, be incubated 2.4 hours; With 215 ℃/h of speed, be warming up to 340 ℃ again, then be cooled to 205 ℃ with 155 ℃/h of speed, then be warming up to 535-550 ℃ with 185 ℃/h of speed, be incubated 2.5 hours, take out air cooling and get final product.
Described refining agent by following weight part (kilogram) raw material make: instrument comminuted steel shot 35, Tai-Ace S 150 3.4, fluorite 5.5, manganese oxide 1.5, Potassium tripolyphosphate 1.5, celestite powder 2.5, stalk ashes 1.5, jade powder 3.5, montmorillonite 1.5, SODIUMNITRATE 3.5, Calcium Fluoride (Fluorspan) 1.5; Preparation method mixes each raw material, is heated to molten state, then, is poured into Quench in pure water, then is ground into 170 order powder; Gained powder is added and is equivalent to the silane resin acceptor kh-550 of powder weight 3%, 2% nano-carbon powder, after mixing, under 13Mpa, be pressed into base, then, at 930 ℃, calcine 3.4 hours, cooling after, then be ground into 200 order powder, obtain.
Pump valve of the present invention by the mechanical property of red hardness high quality steel material is: tensile strength 1190MPa, yield strength 925MPa, unit elongation 15.8%, relative reduction in area 31%, impact absorbing energy 54J, impelling strength 64J/cm2, hardness 278HB.
Claims (4)
1. a red hardness high quality steel material for pump valve, is characterized in that: chemical element composition and mass percent thereof that it contains are: carbon 0.2-0.4, silicon 0.6-0.9, manganese 1.7-1.9, molybdenum 2.1-2.4, chromium 1.6-1.8, vanadium 0.02-0.04, nickel 0.02-0.05, niobium 0.1-0.15, Ta0.04-0.06, S≤0.04, P≤0.04, surplus are iron.
2. the production method of red hardness high quality steel material for pump valve according to claim 1, is characterized in that:
(1), preparing the pig iron and scrap iron originates as ferrous substrate in 1:1-2 ratio, the pig iron is added to drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add scrap iron fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove, be: (1) silicon, nickel, chromium; (2) manganese, vanadium; (3) other remaining components; The timed interval that each batch drops into element is 23-26 minute, after feeding intake, stirs.
3. the production method of red hardness high quality steel material for pump valve according to claim 2, it is characterized in that: described casting postheat treatment is: first by room temperature, with 210-220 ℃/h of speed, be warming up to 500-510 ℃, insulation 60-70 minute, with 210-220 ℃/h of speed, be warming up to 700-710 ℃ again, insulation 60-70 minute, with 170-180 ℃/h of speed, be warming up to 925-940 ℃ again, insulation 3-4 hour; With 170-180 ℃/h of speed, be cooled to 600-610 ℃ again, then be warming up to 700-710 ℃ with 210-220 ℃/h of speed, then be cooled to 480-500 ℃ with 170-180 ℃/h of speed, insulation 70-80 minute; With 170-180 ℃/h of speed, be cooled to 220-230 ℃ again, insulation 2-3 hour; With 210-220 ℃/h of speed, be warming up to 330-350 ℃ again, then be cooled to 200-210 ℃ with 150-160 ℃/h of speed, then be warming up to 535-550 ℃ with 180-190 ℃/h of speed, insulation 2-3 hour, takes out air cooling and get final product.
4. the production method of red hardness high quality steel material for pump valve according to claim 2, is characterized in that: described refining agent is made by the raw material of following weight part: instrument comminuted steel shot 30-40, Tai-Ace S 150 3-4, fluorite 5-6, manganese oxide 1-2, Potassium tripolyphosphate 1-2, celestite powder 2-3, stalk ashes 1-2, jade powder 3-4, montmorillonite 1-2, SODIUMNITRATE 3-4, Calcium Fluoride (Fluorspan) 1-2; Preparation method mixes each raw material, is heated to molten state, then, is poured into Quench in pure water, then is ground into 100-200 order powder; Gained powder is added and is equivalent to the silane resin acceptor kh-550 of powder weight 2-3%, the nano-carbon powder of 1-2%, after mixing, under 8-15Mpa, be pressed into base, then, at 900-950 ℃, calcine 3-4 hour, cooling after, be ground into again 150-250 order powder, obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558319.1A CN103643164A (en) | 2013-11-12 | 2013-11-12 | Red-hardness high alloy steel material for pump valves and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558319.1A CN103643164A (en) | 2013-11-12 | 2013-11-12 | Red-hardness high alloy steel material for pump valves and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103643164A true CN103643164A (en) | 2014-03-19 |
Family
ID=50248443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310558319.1A Pending CN103643164A (en) | 2013-11-12 | 2013-11-12 | Red-hardness high alloy steel material for pump valves and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103643164A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213045A (en) * | 2014-08-05 | 2014-12-17 | 安徽荣达阀门有限公司 | Alloy steel material for high-temperature operation pump valve and preparing method of alloy steel material |
| CN104213042A (en) * | 2014-08-05 | 2014-12-17 | 安徽荣达阀门有限公司 | Alloy steel material for pump shell and manufacturing method thereof |
| CN104213021A (en) * | 2014-08-05 | 2014-12-17 | 安徽荣达阀门有限公司 | Wear resistant high-carbon steel pump valve material and preparation method thereof |
| CN104213031A (en) * | 2014-08-05 | 2014-12-17 | 安徽荣达阀门有限公司 | High-temperature resistant alloy steel material for pump valve and preparation method thereof |
| CN104213027A (en) * | 2014-08-05 | 2014-12-17 | 安徽荣达阀门有限公司 | Stainless steel material for pump valve and manufacturing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63171856A (en) * | 1987-01-09 | 1988-07-15 | Hitachi Ltd | heat resistant steel |
| JP2007239095A (en) * | 2006-02-10 | 2007-09-20 | Nippon Steel Corp | Acid corrosion resistant steel |
| CN101177721A (en) * | 2006-11-10 | 2008-05-14 | 攀钢集团攀枝花钢铁研究院 | Multifunctional Compound Refining Agent for Steelmaking |
| CN101886225A (en) * | 2010-07-07 | 2010-11-17 | 南京信息工程大学 | A kind of corrosion-resistant wear-resistant steel and preparation method thereof |
| CN102409138A (en) * | 2011-10-31 | 2012-04-11 | 芜湖山桥铁路器材有限公司 | Manufacturing process of alloy steel for rail frog |
| CN102644036A (en) * | 2012-04-28 | 2012-08-22 | 江苏天舜金属材料集团有限公司 | High-strength reinforcing steel bar with spiral fins and processing method of high-strength reinforcing steel bar |
-
2013
- 2013-11-12 CN CN201310558319.1A patent/CN103643164A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63171856A (en) * | 1987-01-09 | 1988-07-15 | Hitachi Ltd | heat resistant steel |
| JP2007239095A (en) * | 2006-02-10 | 2007-09-20 | Nippon Steel Corp | Acid corrosion resistant steel |
| CN101177721A (en) * | 2006-11-10 | 2008-05-14 | 攀钢集团攀枝花钢铁研究院 | Multifunctional Compound Refining Agent for Steelmaking |
| CN101886225A (en) * | 2010-07-07 | 2010-11-17 | 南京信息工程大学 | A kind of corrosion-resistant wear-resistant steel and preparation method thereof |
| CN102409138A (en) * | 2011-10-31 | 2012-04-11 | 芜湖山桥铁路器材有限公司 | Manufacturing process of alloy steel for rail frog |
| CN102644036A (en) * | 2012-04-28 | 2012-08-22 | 江苏天舜金属材料集团有限公司 | High-strength reinforcing steel bar with spiral fins and processing method of high-strength reinforcing steel bar |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213045A (en) * | 2014-08-05 | 2014-12-17 | 安徽荣达阀门有限公司 | Alloy steel material for high-temperature operation pump valve and preparing method of alloy steel material |
| CN104213042A (en) * | 2014-08-05 | 2014-12-17 | 安徽荣达阀门有限公司 | Alloy steel material for pump shell and manufacturing method thereof |
| CN104213021A (en) * | 2014-08-05 | 2014-12-17 | 安徽荣达阀门有限公司 | Wear resistant high-carbon steel pump valve material and preparation method thereof |
| CN104213031A (en) * | 2014-08-05 | 2014-12-17 | 安徽荣达阀门有限公司 | High-temperature resistant alloy steel material for pump valve and preparation method thereof |
| CN104213027A (en) * | 2014-08-05 | 2014-12-17 | 安徽荣达阀门有限公司 | Stainless steel material for pump valve and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103614644A (en) | Highly-wear-resistant alloy steel material used for pump trucks and preparation method of the alloy steel material | |
| CN103667944A (en) | Pump super-wear-resistant high-hardness alloy steel material and preparation method thereof | |
| CN103643164A (en) | Red-hardness high alloy steel material for pump valves and preparation method thereof | |
| CN103614647A (en) | Rare earth alloy steel material used for valves and preparation method of the material | |
| CN103614665A (en) | Antimony-containing highly-wear-resistant alloy steel material used for pump valves and preparation method of the alloy steel material | |
| CN103614622A (en) | A low-temperature-resistant alloy material used for pump valve and a preparation method thereof | |
| CN103614645A (en) | Cold-brittleness resistant alloy steel material used for pump trucks and preparation method of the material | |
| CN103614660A (en) | High-yield-strength alloy steel material used for pump valves and preparation method of the alloy steel material | |
| CN103628001A (en) | Alloy steel material for corrosion-resistant pump valve and preparation method thereof | |
| CN103667927A (en) | High-strength high-carbon steel material for pump bearings and preparation method thereof | |
| CN103627967A (en) | Wear-resistant alloy steel material for pump casing and preparation method thereof | |
| CN103614636A (en) | Hafnium-niobium stainless steel material used for pump valves and preparation method thereof | |
| CN103614656A (en) | High-vanadium alloy steel material used for bearings and preparation method thereof | |
| CN103667989A (en) | Rare-earth wear-resistant stainless steel lining board material and preparation method thereof | |
| CN103668000B (en) | A kind of wear-resisting high hardness alloy material of rhenium-containing for pump shaft | |
| CN103643137A (en) | Alloy steel material for large-scale pump bearings and preparation method thereof | |
| CN103643140A (en) | Highly wear-resistant pump shaft medium carbon steel material and preparation method thereof | |
| CN104947004A (en) | Corrosion-resistant steel and processing technique thereof | |
| CN103667896B (en) | A kind of tensile wear-resistant alloy steel material and preparation method thereof for pump valve | |
| CN104073733A (en) | Air corrosion-resistant alloy steel material and preparation method thereof | |
| CN103667867B (en) | A kind of high-carbon alloy steel lining material and preparation method thereof | |
| CN103667990B (en) | A kind of heat-resistance abrasion-resistance alloy steel liner plate material and preparation method thereof | |
| CN103643173A (en) | High temperature corrosion-resistant pump valve alloy steel material and preparation method thereof | |
| CN103614639A (en) | Corrosion-resistant wear-resistant alloy steel material used for pump trucks and preparation method of the material | |
| CN103643174A (en) | Antimony scandium-containing high-hardness alloy steel material for bearings and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140319 |