CN109628817A - A kind of ball seat non-magnetic alloy material - Google Patents
A kind of ball seat non-magnetic alloy material Download PDFInfo
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- CN109628817A CN109628817A CN201910083245.8A CN201910083245A CN109628817A CN 109628817 A CN109628817 A CN 109628817A CN 201910083245 A CN201910083245 A CN 201910083245A CN 109628817 A CN109628817 A CN 109628817A
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- alloy material
- magnetic alloy
- ball
- ball seat
- surplus
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/005—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides comprising a particular metallic binder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
A kind of ball seat non-magnetic alloy material, which is characterized in that by mass percentage, the chemical component composition of the ball seat non-magnetic alloy material includes: Ni 12%；Cr3C2 0.5%-5%；Mo 0.5%-5%；Surplus is WC and other inevitable impurity.Non-magnesium hard alloy of the invention is nonmagnetic, non-magnetic, not adsorbing metal impurity in workpiece use process.Have the characteristics that high intensity, high rigidity, high-wearing feature, can satisfy abrasion demand.
Description
Technical field
The invention belongs to field of alloy material, and in particular to a kind of ball seat non-magnetic alloy material.
Background technique
Valve is for being opened and closed pipeline, control flow direction, the parameter (temperature, pressure and flow) of regulation and control pumped (conveying) medium
Pipeline fittings, valve working environment multiplicity, badly, the requirement to material is very high, at present there are many steel alloys of valve
Multiplicity, technology have a great progress, but still with the presence of many problems, such as wearability, hardness, rustless property, corrosion resistance, resistance to
High temperature performance, brittleness, toughness etc. are not met by the requirement of production in many occasions, it is also necessary to be further improved, to improve
Production efficiency reduces cost, improves safety, provides safeguard for high-quality precision and sophisticated technology development, provides power, task for social development
It is also very arduous.The valve of the invention is used for oil drilling industry, and medium contains the impurity such as silt, to the valve wear of common material
Very big, valve seat generallys use the hard alloy production of the trades mark such as YG13.
Hard alloy has magnetic conductivity, for existing defects under special working condition, as there are magnetic impurities in medium
When, impurity can be adsorbed on valve seat, influence valve tightness, or even damage valve.Common stainless steel material is although non-magnetic,
But do not have wearability.Carbofrax material is non-magnetic, has very high hardness, but intensity is low frangible, and intolerant to abrasive wear, can not
It is used on valve again.
In view of above-mentioned deficiency, a kind of valve pedestal alloy material non-magnetic, that wearability is good is badly in need of in current industry.
Summary of the invention
Based on above-mentioned analysis, the object of the present invention is to provide a kind of non-magnetic, ball seats that wearability is good without magnetic
Cemented carbide material.
In order to achieve the above object, the invention adopts the following technical scheme:
A kind of ball seat non-magnetic alloy material, by mass percentage, the chemical component of the ball seat non-magnetic alloy material
Composition includes: Ni 12%；Cr3C2 0.5%-5%；Mo 0.5%-5%；Surplus is WC and other inevitable impurity.
Further, by mass percentage, the chemical component composition of the ball seat non-magnetic alloy material are as follows: Ni
12%、Cr3C2 4.5%,Mo 2.5%；Surplus is WC and other inevitable impurity.
Further, by mass percentage, the chemical component composition of the ball seat non-magnetic alloy material are as follows: Ni
12%、Cr3C2 0.5%,Mo 0.5%；Surplus is WC and other inevitable impurity.
Further, by mass percentage, the chemical component composition of the ball seat non-magnetic alloy material are as follows: Ni
12%、Cr3C2 10%,Mo 5%；Surplus is WC and other inevitable impurity.
A kind of preparation method of ball seat non-magnetic alloy material the following steps are included:
1) by metal powder Ni, Cr3C2, Mo and WC mix in proportion, ball milling in the ball mill, and alcohol is added as ball milling
Medium；
2) powder after grinding is dried under vacuum conditions, removes alcohol, added forming agent, graininess is made in powder；
3) oil pressure press is pressed and molded.
4) fusion is sintered under vacuum state.
Further, it is ground in the ball mill 48 hours after the metal powder mixing, ratio of grinding media to material 3:1, every kilogram of gold
Belong to mixture of powders and adds 2L alcohol.
Further, the forming agent additional amount is the 8% of metal powder quality, and forming agent is SD resin.
Further, the sintering temperature is 1460 DEG C, and sintering time is 12 hours, and vacuum degree is less than 20Pa.
The beneficial effects of the present invention are:
1. non-magnesium hard alloy of the invention is nonmagnetic, non-magnetic, not adsorbing metal impurity in workpiece use process.
2. non-magnesium hard alloy of the invention has the characteristics that high intensity, high rigidity, high-wearing feature, can satisfy abrasion is needed
It asks.
Specific embodiment
Embodiment 1
Ball seat non-magnetic alloy material
By mass percentage, by 12%Ni, 4.5%Cr3C2, after powder mixing that 2.5%Mo and surplus are WC, in ball mill
Middle ball milling 48 hours, ratio of grinding media to material 3:1, every kilogram of metal powder mixture addition 2L alcohol was as ball-milling medium when grinding.So
The powder after ball milling is dried under vacuum conditions afterwards, steams alcohol.Forming agent SD resin is added in dried powder, SD resin adds
Enter amount accounts for powder quality 8%, make powder that there is suppression performance, graininess is made in the sieving of 80 mesh.Oil pressure press compression molding, very
Empty sintering furnace sinters green body into, wherein sintering temperature is 1460 DEG C, and sintering time is 12 hours, and vacuum degree is less than 20Pa.
The content and preparation process of ball seat non-magnetic alloy material strict control each component made from the present embodiment, it is real
Show and acted synergistically between each component, to prepare using tungsten carbide-nickel as matrix, nonmagnetic, good mechanical performance nothing
Magnetic alloy.Chromium carbide and molybdenum are solid-solution in nickel, upset the ordered arrangement of nickle atom magnetic moment, and alloy is made not show magnetism integrally.
Magnetic conductivity≤1.2 × 10 under ball seat non-magnetic hard alloy material room temperature made from the present embodiment-6H/m, magnetic strength
Answer intensity≤0.13T.
Ball seat non-magnetic hard alloy material porosity < A02B02 made from the present embodiment, hardness > HRA89.0 resist
Curved intensity > 2200N/mm2.With good wear-resisting property.
Embodiment 2
Ball seat non-magnetic alloy material
By mass percentage, by 12%Ni, 0.5%Cr3C2, after powder mixing that 0.5%Mo and surplus are WC, in ball mill
Middle ball milling 48 hours, ratio of grinding media to material 3:1, every kilogram of metal powder mixture addition 2L alcohol was as ball-milling medium when grinding.So
The powder after ball milling is dried under vacuum conditions afterwards, steams alcohol.Forming agent SD resin is added in dried powder, SD resin adds
Enter amount accounts for powder quality 8%, make powder that there is suppression performance, graininess is made in the sieving of 80 mesh.Oil pressure press compression molding, very
Empty sintering furnace sinters green body into, wherein sintering temperature is 1460 DEG C, and sintering time is 12 hours, and vacuum degree is less than 20Pa.
Magnetic conductivity≤3.6 × 10 under ball seat cemented carbide material room temperature made from the present embodiment-5H/m, magnetic induction are strong
Degree≤0.68T.
Ball seat cemented carbide material porosity < A02B02 made from the present embodiment, hardness > HRA89.0, bending resistance are strong
Spend > 2200N/mm2.
Embodiment 3
Ball seat non-magnetic alloy material
By mass percentage, by 12%Ni, 10%Cr3C2, after powder mixing that 5%Mo and surplus are WC, ball in the ball mill
Mill 48 hours, ratio of grinding media to material 3:1, every kilogram of metal powder mixture addition 2L alcohol is as ball-milling medium when grinding.Then will
Powder after ball milling is dried under vacuum conditions, steams alcohol.Forming agent SD resin, SD resin amount are added in dried powder
The 8% of powder quality is accounted for, makes powder that there is suppression performance, graininess is made in the sieving of 80 mesh.Oil pressure press compression molding, vacuum are burnt
Freezing of a furnace sinters green body into, wherein sintering temperature is 1460 DEG C, and sintering time is 12 hours, and vacuum degree is less than 20Pa.
Magnetic conductivity≤4.8 × 10 under ball seat cemented carbide material room temperature made from the present embodiment-6H/m, magnetic induction are strong
Degree≤0.22T.
Ball seat cemented carbide material porosity < A08B06 made from the present embodiment, hardness > HRA85.0, bending resistance are strong
Spend > 1600N/mm2.
Claims (8)
1. a kind of ball seat non-magnetic alloy material, which is characterized in that by mass percentage, the ball seat non-magnetic alloy material
The chemical component of material forms
Ni 12%；Cr3C2 0.5%-5%；Mo 0.5%-5%；Surplus is WC and other inevitable impurity.
2. ball seat non-magnetic alloy material according to claim 1, which is characterized in that by mass percentage, the ball
The chemical component of valve base non-magnetic alloy material forms are as follows:
Ni 12%、Cr3C2 4.5%,Mo 2.5%；Surplus is WC and other inevitable impurity.
3. ball seat non-magnetic alloy material according to claim 1, which is characterized in that by mass percentage, the ball
The chemical component of valve base non-magnetic alloy material forms are as follows:
Ni 12%、Cr3C2 0.5%,Mo 0.5%；Surplus is WC and other inevitable impurity.
4. ball seat non-magnetic alloy material according to claim 1, which is characterized in that by mass percentage, the ball
The chemical component of valve base non-magnetic alloy material forms are as follows:
Ni 12%、Cr3C2 10%,Mo 5%；Surplus is WC and other inevitable impurity.
5. a kind of preparation method of the ball seat non-magnetic alloy material as described in claim 1-4 any one, feature exist
In, method includes the following steps:
1) by metal powder Ni, Cr3C2, Mo and WC mix in proportion, ball milling in the ball mill, and alcohol is added as ball milling
Medium；
2) powder after grinding is dried under vacuum conditions, removes alcohol, added forming agent, graininess is made in powder；
3) oil pressure press is pressed and molded；
4) fusion is sintered under vacuum state.
6. according to the method described in claim 5, it is characterized in that, to grind 48 in the ball mill small after metal powder mixing
When, ratio of grinding media to material 3:1, every kilogram of metal powder mixture adds 2L alcohol.
7. according to the method described in claim 5, it is characterized in that, the forming agent additional amount be metal powder quality 8%,
Forming agent is SD resin.
8. according to the method described in claim 5, sintering time is 12 small it is characterized in that, the sintering temperature is 1460 DEG C
When, vacuum degree is less than 20Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910083245.8A CN109628817A (en) | 2019-01-29 | 2019-01-29 | A kind of ball seat non-magnetic alloy material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910083245.8A CN109628817A (en) | 2019-01-29 | 2019-01-29 | A kind of ball seat non-magnetic alloy material |
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| Publication Number | Publication Date |
|---|---|
| CN109628817A true CN109628817A (en) | 2019-04-16 |
Family
ID=66064080
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910083245.8A Pending CN109628817A (en) | 2019-01-29 | 2019-01-29 | A kind of ball seat non-magnetic alloy material |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08120374A (en) * | 1994-08-30 | 1996-05-14 | Hitachi Metals Ltd | Coated non magnetic cemented carbide die member and its production |
| CN101514422A (en) * | 2009-03-24 | 2009-08-26 | 宋爽 | Non-magnetic hard alloy powder and method for preparing the same |
| CN101914714A (en) * | 2010-08-25 | 2010-12-15 | 株洲硬质合金集团有限公司 | Nonmagnetic hard alloy and preparation method |
-
2019
- 2019-01-29 CN CN201910083245.8A patent/CN109628817A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08120374A (en) * | 1994-08-30 | 1996-05-14 | Hitachi Metals Ltd | Coated non magnetic cemented carbide die member and its production |
| CN101514422A (en) * | 2009-03-24 | 2009-08-26 | 宋爽 | Non-magnetic hard alloy powder and method for preparing the same |
| CN101914714A (en) * | 2010-08-25 | 2010-12-15 | 株洲硬质合金集团有限公司 | Nonmagnetic hard alloy and preparation method |
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Application publication date: 20190416 |