CN108796357A - A kind of preparation method of the composite material comprising spheroidal graphite cast-iron - Google Patents
A kind of preparation method of the composite material comprising spheroidal graphite cast-iron Download PDFInfo
- Publication number
- CN108796357A CN108796357A CN201810765252.1A CN201810765252A CN108796357A CN 108796357 A CN108796357 A CN 108796357A CN 201810765252 A CN201810765252 A CN 201810765252A CN 108796357 A CN108796357 A CN 108796357A
- Authority
- CN
- China
- Prior art keywords
- iron
- spheroidal graphite
- raw material
- graphite cast
- composite 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/006—Making ferrous alloys compositions used for making ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
- C22C33/10—Making cast-iron alloys including procedures for adding magnesium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/04—Cast-iron alloys containing spheroidal graphite
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
- C23C4/11—Oxides
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/129—Flame spraying
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a kind of preparation methods of the composite material comprising spheroidal graphite cast-iron, including：Step 1 designs the ingredient of oxide mixed raw material；Step 2 grinds oxide mixed raw material, and fine grained oxides raw material and course grained oxides raw material is respectively prepared；Step 3 designs the chemical composition of spheroidal graphite cast-iron；Step 4, induction furnace melting is utilized after the raw material of spheroidal graphite cast-iron is mixed, spheroidal graphite cast-iron product is made, course grained oxides raw material and fine grained oxides raw material are sprayed into spheroidal graphite cast-iron surface successively using supersonic flame spraying when product molding is cooled to 500-600 DEG C, after keeping the temperature 0.5-1h, it is whole that 2-4h is sintered at 950-980 DEG C, obtain required composite material.Make the two that can form the composite material combined closely by the chemical composition of the composition and spheroidal graphite cast-iron itself that improve protective oxide film raw material in the present invention, the grade of spheroidal graphite cast-iron surfacecti proteon is improved, to greatly improve the service life of spheroidal graphite cast-iron.
Description
Technical field
The invention belongs to metallic composite fields, and in particular to a kind of preparation side of the composite material comprising spheroidal graphite cast-iron
Method.
Background technology
Cast iron is a kind of iron-carbon alloy, it is characterized in that phosphorus content is high, the mass percentage of carbon is more than 2%, also contains
The impurity elements such as more silicon, manganese, phosphorus, sulphur.It is spread out in cast iron and largely exists with the graphite of carbide or free state, also
Minute quantity is solid-solution in ferrite.Graphite lattice types in cast iron are simple hexagoinal lattice, and the atomic distance in basal plane is
0.142nm, binding force is stronger, but the interplanar distance between two basal planes is 0.340nm, and binding force is weak, therefore the basal plane of graphite is very
It is easy sliding, intensity, hardness, plasticity and wilful polar region often exist with lamellar morphology.Graphite in spheroidal graphite cast-iron is spherical
, intensity and toughness higher than other cast irons such as gray cast iron there is excellent castability, high damping and amortization, good cutting to add
Work, and compared with the steel of similar performance, the price with relative moderate, therefore obtain widely answer in the industry
With, such as bent axle, camshaft, hot roll wearing piece, often using spheroidal graphite cast-iron manufacture, the dosage in manufacturing industry occupies all
The second of metal material.Spheroidal graphite cast-iron also makes ductile cast iron, graphite therein play the part of the role of crack arrester, makes it have excellent
Human nature and ductility.The diversity of spheroidal graphite cast-iron is adapted for more applying, it is considered to be the substitute of steel, but due to ball
Shape graphite is embedded in iron-based body so that and the intensity of iron-based body is discontinuous, and globular graphite is formation of crack under shock loading,
It is easy to cause the cracking of matrix.
Although ductile cast iron material have corresponding advantage and disadvantage, due to its advantages --- with iron essence,
The performance of steel, antiseptic property are excellent, ductility is good, very extensive application have still been obtained in industrial circle, especially in pipe
Road transport field is an advantage over the first choice of the metal material of plastic conduit, from installation convenience and from the point of view of safeguarding cost, has superior
Cost performance.But ductile cast iron material also has the shortcomings that the general character of ferrous material --- with the passage surface meeting of service life
Gradually it is corroded.Currently, for ductile iron pipeline material anti-corrosion using it is more be to be prevented using cement mortar coating
Rotten or macromolecule protective coating carries out anti-corrosion.Means of defence in the prior art still exists anti-although using more
Between sheath and nodular iron casting the problem of binding force and protective layer with usage time passage protective capacities tomography decline
The problem of, the above problem is solved there is no effective method so far.
Invention content
In order to solve the deficiencies in the prior art, the present invention provides a kind of using protective oxide film to spheroidal graphite cast-iron
The method that article surface is protected provides a kind of preparation method of the composite material comprising spheroidal graphite cast-iron.The present invention is wanted
The technique effect reached is realized by following scheme：
A kind of preparation method of the composite material comprising spheroidal graphite cast-iron provided in the present invention, includes the following steps：
Step 1, the ingredient and mass percent for designing oxide mixed raw material are：ZrO215-18%、HfO23-5%、Cr2O31-
2%、SiO214-16%、MnO23-7%, BaO0.5-0.9%, CuO0.1-0.3%, surplus Al2O3；
Step 2 grinds oxide mixed raw material, and the fine grained oxides raw material that average particle size is 0.05-0.1 μm is respectively prepared
The course grained oxides raw material for being 1-2 μm with average particle size；
Step 3, the chemical composition and mass percent for designing spheroidal graphite cast-iron are：C3.85-3.92%,Si1.5-1.7%,
Mn0.55-0.60%、P≤0.02%、S≤0.02%、Cr≤0.02%、B0.015-0.023%、Mo0.3-0.5%、Cu0.7-0.9%、
Mg0.02-0.03%, Ni1.0-1.15%, V0.03-0.045%, surplus are iron and the impurity not being avoided that；The spheroidal graphite cast-iron
Raw material mainly use the pig iron and steel scrap, remaining using molybdenum-iron, red copper, ferrochrome, ferromanganese, vanadium iron；
Step 4 utilizes induction furnace melting after mixing the raw material of spheroidal graphite cast-iron, spheroidal graphite cast-iron product is made, when product molding is cold
But course grained oxides raw material and fine grained oxides raw material are sprayed into ball successively using supersonic flame spraying at 500-600 DEG C
Black Cast Iron Surface, it is whole that 2-4h is sintered at 950-980 DEG C after keeping the temperature 0.5-1h, obtain required composite material.
The present invention technology path be：Oxide protective layer, is then sprayed by the higher spheroidal graphite cast-iron of design surface energy
The surface of ductile cast iron material makes the two combine closely, forms new composite material.The combination of oxides used in the present invention
For with Al2O3Based on mixed oxide composition, only with Al2O3Raw material as protective oxide film confirms in practice and ball
Binding force between black Cast Iron Surface is simultaneously bad, and sintering temperature is high, and oxide layer easily causes spheroidal graphite casting during being sintered
The variation of iron interior tissue is to have adverse effect on.In Al in the present invention2O3On the basis of to be added to transparency higher
ZrO2And compatible HfO therewith2, Zr and Hf is congeners, has similar atomic structure, oxidesintering process
It can mutually fill to form the compactness extent that close pile structure promotes oxide skin(coating) between middle atom.Meanwhile Cr2O3、MnO2Addition energy energy
It is enough effectively to reduce sintering temperature, SiO2, BaO, CuO mixing addition can not only then reduce sintering temperature, and oxygen can be made
Change layer and more closely is adhered to spheroidal graphite cast-iron surface.It is noted that the ingredient and used in amounts of oxide skin(coating) are strictly controlled
System, the change of one-component or various ingredients cannot bring the technique effect in the present invention.
Chemical composition in the present invention simultaneously also directed to spheroidal graphite cast-iron is improved, and keeps ductile cast iron material more resistance to
Erosion, surface energy higher are suitable for being used as the raw material in composite material.The ingredient of spheroidal graphite cast-iron is carried out first
Adaptability is allocated.Suitable nodular cast iron tissue in order to obtain, it is necessary to which then suitable element is added for selection.It is selected in the present invention
Si, Mn, Mo, Cu, Ni are selected as main alloy addition element, while adulterating a small amount of B, Mg and V, further, control P,
S, the content of Cr.In master alloying addition element in the present invention, suitable Si and Ni being capable of joint effect spheroidal graphite cast-iron meltings
Graphited process in journey can reduce the critical-temperature of austenite transformation, expand austenitic area, can also reduce eutectoid point
Phosphorus content has the function of stablizing and refining pearlite strongly.Cu can promote to be graphitized in eutectic transformation, reduce austenite
The critical-temperature of transformation promotes the formation of pearlite, advantageous to the formation for reducing or eliminating free cementite, promotes spheroidal graphite casting
The toughness of iron, Mo then can obviously refine pearlite, promote the intensity and quenching degree of spheroidal graphite cast-iron, and energy is added in the cooperation of Cu and Mo
It is enough to strengthen and refine the ferrite in pearlite and pearlite simultaneously so that the intensity and hardness of spheroidal graphite cast-iron have it is bright
It is aobvious to be promoted.From it will be evident that B, Mg and V are dissolved into the microstructure of spheroidal graphite cast-iron, spheroidal graphite can be promoted in actual production
The wearability and quenching degree of cast iron, but additive amount should not be excessive, especially the content of B need to be strict controlled in 0.015-0.023%
In range, harmful effect otherwise is generated to the comprehensive mechanical property of spheroidal graphite cast-iron, can make macroscopical toughness that cliff of displacement formula be presented and decline.
Further, in step 2, in fine grained oxides raw material, the particle that granularity is 0.05-0.08 μm accounts for particulate oxidation
95% or more of raw material total amount.
Further, in step 2, in course grained oxides raw material, granularity is that 1.5-1.8 μm of particle accounts for course grained oxides
95% or more of raw material total amount.
In the present invention using supersonic flame spraying technique oxide skin(coating) is coated to spheroidal graphite cast-iron surface formed it is compound
Material.It is different from primary spraying in the prior art, using the technique sprayed twice in the present invention, and by that will spray twice
The oxide raw material particle setting of painting is different, and course grained oxides raw material is first coated on spheroidal graphite cast-iron surface, fine grained oxides raw material
Course grained oxides layer void is filled coated on spheroidal graphite cast-iron surface afterwards, two layers of oxide skin(coating) is to form fine and close oxygen
Compound protective layer, and coating power in second layer oxide skin(coating) spraying process has also effectively been deepened and has been in contact with spheroidal graphite cast-iron
Oxide material degree in combination.
Further, in step 3, the nodulizer that spheroidal graphite cast-iron melting uses is FeSiMg8Re7, nodulizer Adding Way
To pour method.
Further, nodulizer additive amount is the 1.5-1.7% of spheroidal graphite cast-iron material quality.
Further, in step 4, spheroidal graphite cast-iron smelting temperature is 1480-1500 DEG C.
Further, in step 4, the thickness of oxidesintering layer is 500-2000 μm.
Further, in step 4, fine grained oxides raw material dosage is 1.1-1.2 times of course grained oxides raw material dosage.
Burden control between fine grained oxides raw material and course grained oxides raw material dosage is advisable between 1.1-1.2, can prepare
Most fine and close protective oxide film.
The present invention has the following advantages：
A kind of method protected to spheroidal graphite cast-iron article surface using protective oxide film is provided in the present invention, is provided
A kind of preparation method of the composite material comprising spheroidal graphite cast-iron.In the present invention by improve protective oxide film raw material composition and
The chemical composition of spheroidal graphite cast-iron itself makes the two that can form the composite material combined closely, and improves spheroidal graphite cast-iron surfacecti proteon
Grade should be particularly suitable for work comprising composite material of spheroidal graphite cast-iron to greatly improve the service life of spheroidal graphite cast-iron
In the Anti-corrosion design of industry liquid-transport pipe-line.
Specific implementation mode
With reference to embodiment, the present invention will be described in detail.
First, prepare spheroidal graphite cast-iron, using the pig iron and steel scrap, remaining using molybdenum-iron, red copper, ferrochrome, ferromanganese, vanadium iron into
Row casting, above-mentioned raw material are all made of commercially available material, and the wherein mass ratio of the pig iron and steel scrap is 8：1.
The casting method of specific spheroidal graphite cast-iron product is as follows：
Select corresponding raw material will be former under the conditions of 1480-1500 DEG C using intermediate frequency furnace melting according to composition design
Material is smelted into melt（It, or can in other experiments in production using the medium-sized smelting furnace of 50kg in the embodiment of the present invention
The corresponding induction furnace using different model carries out melting, and temperature control is in melting temperature range）；It, will using method processing is poured
After casting ladle drying, FeSiMg8Re7 nodulizers are put into casting ladle, nodulizer additive amount is the 1.7% of spheroidal graphite cast-iron material quality,
Then the Antaciron FeSi90Al1.5 powder for being 1mm in its surface covering average particle size, after the completion of melting, works as former material
Expect that melt temperature test result is more than 1480 DEG C, then pour immediately in 80% melt to casting ladle, until being rushed again after the completion of spheroidizing reacion
Enter remaining raw material melt.
In this step, other commercially available nodulizers to match can also be used in nodulizer, and addition also can be according to reality
The variation of situation carries out the adjustment of adaptability.The type and dosage of coverture Antaciron can similarly be carried out according to actual conditions
The adjusting of adaptability, preferably FeSi90Al1.5, FeSi75Al0.5-A, FeSi75Al0.5-B, FeSi75Al1.5-A,
One or more of FeSi75Al1.5-B, FeSi65, FeSi45 all may be used.After the completion of above-mentioned steps, addition accounts for raw material matter
The CBSALLOY inovulants of amount 0.6% are once bred, and are come out of the stove and are poured into a mould under the conditions of 1460 DEG C, pouring temperature 1420
DEG C, spheroidal graphite cast-iron product is made.Inovulant grain graininess used in the step is 0.1mm.Between above-mentioned spheroidal graphite cast-iron
In manufacturing method, the processing step provided using specialized vocabulary is the prior art, as in " pouring method " and spheroidal graphite cast-iron casting process
Breed, be all the description in the prior art to cast iron process technique, the invention being not intended as due to the prior art in the present invention
Point, therefore be not added with repeat herein, but the foundation of essential features description should not be lacked in this, as the present invention.
The nodular cast iron pipe fittings of 10 batches, tubular length 20cm are prepared using above-mentioned casting method, outer diameter is
4.5cm, internal diameter 3cm.It is as follows that constituent content mensure result is carried out using oxygen-nitrogen analyzer and ICP emission spectrometers（Test knot
Fruit is the mass percent of corresponding element）：
The spraying that obtained nodular cast iron pipe fittings are carried out to oxide skin(coating), is as follows：
1. the ingredient and mass percent that design oxide mixed raw material are：ZrO216.4%、HfO24.2%、Cr2O31.6%、
SiO215%、MnO25%, BaO0.8%, CuO0.22%, surplus Al2O3。
2. oxide mixed raw material is ground, the fine grained oxides raw material and be averaged that average particle size is 0.06 μm is respectively prepared
The course grained oxides raw material that granularity is 1.4 μm, wherein in fine grained oxides raw material, granularity is that 0.05-0.08 μm of particle accounts for carefully
95% or more of grain oxide raw material total amount, in course grained oxides raw material, granularity is that 1.5-1.8 μm of particle accounts for course grained oxides
95% or more of raw material total amount.Size distribution in oxide raw material is the committed step of oxide skin(coating) even compact.
After the completion of above-mentioned nodular cast iron pipe fittings are cast, sprayed using supersonic flame when formation of tubes is cooled to 550 DEG C
It applies and course grained oxides raw material and fine grained oxides raw material is sprayed into spheroidal graphite cast-iron surface successively, it is whole at 962 DEG C after keeping the temperature 1h
It is sintered 2.5h, obtains required composite material.In the step, fine grained oxides raw material dosage is course grained oxides raw material dosage
1.2 times, the thickness of oxidesintering layer is 1000 μm.The oxide skin(coating) prepared is fine and close and is bonded tightly with nodular cast iron pipe fittings
It is close.The composite material every batch of that the pipe fitting of above-mentioned 10 batches is prepared is randomly selected into the total 100PSC of 10PCS and is positioned over salt
Neutral salt spray test is done in mist chamber, experimental result is：It tests and is cast more than the spheroidal graphite with protective oxide film after 10000h
Iron is not any change, and spheroidal graphite cast-iron matrix and oxide skin(coating) are also without any the phenomenon that detaching, and the implementation compareed therewith
Have there is apparent signs of corrosion in the nodular cast iron pipe fittings for not carried out oxide layer protection in example, and corrosion rate reaches
0.24mm/, it is another that 1.21mm/ is more up to using the control group corrosion rate of commercially available nodular cast iron pipe fittings.
As can be seen from the above-described embodiment, pass through the composition and spheroidal graphite cast-iron of improvement protective oxide film raw material in the present invention
The chemical composition of itself makes the two that can form the composite material combined closely, and improves the grade of spheroidal graphite cast-iron surfacecti proteon,
To greatly improve the service life of spheroidal graphite cast-iron, industrial infusion should be particularly suitable for comprising the composite material of spheroidal graphite cast-iron
In the Anti-corrosion design of pipeline.
Finally, it should be noted that above example be only to illustrate the embodiment of the present invention technical solution rather than to its into
Row limitation, although the embodiment of the present invention is described in detail with reference to preferred embodiment, those skilled in the art
It should be understood that the technical solution of the embodiment of the present invention can be still modified or replaced equivalently, and these are changed or wait
The range of modified technical solution disengaging technical solution of the embodiment of the present invention cannot also be made with replacement.
Claims (8)
1. a kind of preparation method of the composite material comprising spheroidal graphite cast-iron, it is characterised in that include the following steps：
Step 1, the ingredient and mass percent for designing oxide mixed raw material are：ZrO215-18%、HfO23-5%、Cr2O31-
2%、SiO214-16%、MnO23-7%, BaO0.5-0.9%, CuO0.1-0.3%, surplus Al2O3；
Step 2 grinds oxide mixed raw material, and the fine grained oxides raw material that average particle size is 0.05-0.1 μm is respectively prepared
The course grained oxides raw material for being 1-2 μm with average particle size；
Step 3, the chemical composition and mass percent for designing spheroidal graphite cast-iron are：C3.85-3.92%,Si1.5-1.7%,
Mn0.55-0.60%、P≤0.02%、S≤0.02%、Cr≤0.02%、B0.015-0.023%、Mo0.3-0.5%、Cu0.7-0.9%、
Mg0.02-0.03%, Ni1.0-1.15%, V0.03-0.045%, surplus are iron and the impurity not being avoided that；The spheroidal graphite cast-iron
Raw material mainly use the pig iron and steel scrap, remaining using molybdenum-iron, red copper, ferrochrome, ferromanganese, vanadium iron；
Step 4 utilizes induction furnace melting after mixing the raw material of spheroidal graphite cast-iron, spheroidal graphite cast-iron product is made, when product molding is cold
But course grained oxides raw material and fine grained oxides raw material are sprayed into ball successively using supersonic flame spraying at 500-600 DEG C
Black Cast Iron Surface, it is whole that 2-4h is sintered at 950-980 DEG C after keeping the temperature 0.5-1h, obtain required composite material.
2. the preparation method of the composite material comprising spheroidal graphite cast-iron as described in claim 1, it is characterised in that：In step 2, carefully
In grain oxide raw material, granularity is that 0.05-0.08 μm of particle accounts for 95% or more of fine grained oxides raw material total amount.
3. the preparation method of the composite material comprising spheroidal graphite cast-iron as described in claim 1, it is characterised in that：In step 2, slightly
In grain oxide raw material, granularity is that 1.5-1.8 μm of particle accounts for 95% or more of course grained oxides raw material total amount.
4. the preparation method of the composite material comprising spheroidal graphite cast-iron as described in claim 1, it is characterised in that：In step 3, ball
The nodulizer that black Castiron Melting uses is FeSiMg8Re7, and nodulizer Adding Way is to pour method.
5. the preparation method of the composite material comprising spheroidal graphite cast-iron as claimed in claim 4, it is characterised in that：Nodulizer additive amount
For the 1.5-1.7% of spheroidal graphite cast-iron material quality.
6. the preparation method of the composite material comprising spheroidal graphite cast-iron as described in claim 1, it is characterised in that：In step 4, ball
Black Castiron Melting temperature is 1480-1500 DEG C.
7. the preparation method of the composite material comprising spheroidal graphite cast-iron as described in claim 1, it is characterised in that：In step 4, oxygen
The thickness of compound sinter layer is 500-2000 μm.
8. the preparation method of the composite material comprising spheroidal graphite cast-iron as described in claim 1, it is characterised in that：In step 4, carefully
Grain oxide raw material dosage is 1.1-1.2 times of course grained oxides raw material dosage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810765252.1A CN108796357B (en) | 2018-07-12 | 2018-07-12 | Preparation method of composite material containing nodular cast iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810765252.1A CN108796357B (en) | 2018-07-12 | 2018-07-12 | Preparation method of composite material containing nodular cast iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108796357A true CN108796357A (en) | 2018-11-13 |
| CN108796357B CN108796357B (en) | 2020-01-24 |
Family
ID=64075035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810765252.1A Active CN108796357B (en) | 2018-07-12 | 2018-07-12 | Preparation method of composite material containing nodular cast iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108796357B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60121254A (en) * | 1983-12-05 | 1985-06-28 | Kubota Ltd | Composite cylinder liner |
| JPS6126754A (en) * | 1984-07-13 | 1986-02-06 | Kubota Ltd | Double-layered cylinder liner having superior wear resistance |
| JP2002180176A (en) * | 2000-12-06 | 2002-06-26 | Nippon Steel Corp | High alloy grain cast iron for hot rolls made by centrifugal casting |
| CN1425793A (en) * | 2003-01-30 | 2003-06-25 | 隆鑫集团有限公司 | Modifying method for magnesium alloy product surface |
| CN102676971A (en) * | 2012-05-14 | 2012-09-19 | 新兴铸管股份有限公司 | Preparation method for composite coating of outer surface of nodular cast iron pipe |
| CN103184399A (en) * | 2011-12-31 | 2013-07-03 | 江苏太阳宝新能源有限公司 | Solar photo-thermal power generation high temperature protective coating and preparation method thereof |
-
2018
- 2018-07-12 CN CN201810765252.1A patent/CN108796357B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60121254A (en) * | 1983-12-05 | 1985-06-28 | Kubota Ltd | Composite cylinder liner |
| JPS6126754A (en) * | 1984-07-13 | 1986-02-06 | Kubota Ltd | Double-layered cylinder liner having superior wear resistance |
| JP2002180176A (en) * | 2000-12-06 | 2002-06-26 | Nippon Steel Corp | High alloy grain cast iron for hot rolls made by centrifugal casting |
| CN1425793A (en) * | 2003-01-30 | 2003-06-25 | 隆鑫集团有限公司 | Modifying method for magnesium alloy product surface |
| CN103184399A (en) * | 2011-12-31 | 2013-07-03 | 江苏太阳宝新能源有限公司 | Solar photo-thermal power generation high temperature protective coating and preparation method thereof |
| CN102676971A (en) * | 2012-05-14 | 2012-09-19 | 新兴铸管股份有限公司 | Preparation method for composite coating of outer surface of nodular cast iron pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108796357B (en) | 2020-01-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101942619B (en) | Glass mould material of alloy cast iron and preparation method thereof | |
| CN104775065B (en) | A kind of high toughness wear resistant magnesium iron rocking arm and preparation method thereof | |
| CN102251183B (en) | Boron-containing high-chromium wear-resistant alloy and preparation method thereof | |
| CN102747268B (en) | High-strength high-ductility nodular cast iron and manufacturing method thereof | |
| CN109706381B (en) | Cast iron material for cylinder liner, cylinder liner and preparation method of cylinder liner | |
| CN105506442B (en) | A kind of Si Mn alloyings wear-resisting ductile iron abrading-ball and preparation method thereof | |
| CN105401064A (en) | Medium silicon molybdenum nodular cast iron and production method thereof | |
| CN110438390A (en) | A kind of the petroleum pipeline valve body steel and its production method of the big specification pole material of Φ 280mm | |
| CN103602879A (en) | Preparation method for high strength gray cast iron material | |
| CN107435117A (en) | A kind of breaking type ferrite adds the high tough spheroidal graphite cast-iron and its production method of pearlitic texture | |
| CN108300930A (en) | Wind turbines superhigh intensity low-temperature spheroidal iron casting and its manufacturing method | |
| CN103088251A (en) | Spheroidal graphite cast iron as well as thermal treatment method thereof | |
| CN103805830A (en) | Preparation method for high strength gray cast iron material | |
| CN108950366B (en) | Method for processing nodular cast iron part with good wear resistance | |
| CN107699785A (en) | A kind of tough high-chromium cast abrasion-proof steel ball | |
| CN108796356A (en) | A kind of preparation method of the spheroidal graphite cast-iron product with composite layer | |
| CN103484794B (en) | Multi-component alloy cast iron preparation method | |
| CN106947907B (en) | A kind of preparation method of graphitized free-machining steel high-speed rod | |
| CN104831156A (en) | Method for micro-alloying treatment of ausferrite ductile cast iron grinding balls | |
| CN108118245A (en) | A kind of wear resistant toothed plate new low-alloy wear-resistant steel and its heat treatment method | |
| CN104073712B (en) | High-carbon vanadium titanium grey cast iron and manufacturing method thereof, as well as vehicle brake disk and manufacturing method thereof | |
| CN108796357A (en) | A kind of preparation method of the composite material comprising spheroidal graphite cast-iron | |
| CN107723582B (en) | High-aluminum high-temperature-resistant nodular cast iron containing molybdenum and chromium elements and preparation method thereof | |
| CN107760982A (en) | A kind of high hardness wear-resisting ball and its preparation technology | |
| CN108660392A (en) | A kind of Si strengthens high hardness wear-resisting alloy and its casting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |