CN109735756A - A kind of high abrasion ball body of valve titanium alloy material - Google Patents
A kind of high abrasion ball body of valve titanium alloy material Download PDFInfo
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- CN109735756A CN109735756A CN201910083362.4A CN201910083362A CN109735756A CN 109735756 A CN109735756 A CN 109735756A CN 201910083362 A CN201910083362 A CN 201910083362A CN 109735756 A CN109735756 A CN 109735756A
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Abstract
A kind of high abrasion ball body of valve titanium alloy material, which is characterized in that by mass percentage, the chemical component composition of the ball body of valve titanium alloy material includes: TiC 15%-28%；Ni 6%-10%；Co 6%-10%；Cr3C22%；Surplus is WC and other inevitable impurity.High abrasion ball body of valve titanium alloy material produced by the present invention is at low cost, light, hardness is high, wearability is good.
Description
Technical field
The invention belongs to field of alloy material, and in particular to a kind of high abrasion ball body of valve titanium 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, pump valve work environment multiplicity, badly, the requirement to material is very high, at present there are many steel alloys of pump 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., and it is expensive, it is not met by the requirement of production in many occasions, it is also necessary into one
Step is improved, and to improve production efficiency, is reduced cost, is improved safety, is provided safeguard for high-quality precision and sophisticated technology development, is social development
Power is provided.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, sphere generallys use the hard alloy production of the trades mark such as YG6, higher cost.
Oil well is easily worn with sphere in hard alloy ball valve and loses round failure, and the service life of valve seat is far longer than ball
Body brings unnecessary waste.Valve seat and sphere are made usually using YG13 trade mark hard alloy different from two kinds of YG6, two kinds
The different material of hardness is used cooperatively, and ball seat is partially soft, and sphere is partially hard, so that the abrasion loss of sphere is less than the abrasion loss of valve seat, is extended
The whole service life of valve.Actual condition is complex, and existing abrasive wear has situations such as adhesive wear again, and sphere, which is appointed, is so
Dominant failure source.For the service life for improving valve, the wear-resisting property for increasing sphere is main break-through point.
In view of above-mentioned deficiency, seek a kind of anti-abrasive wear and adhesive wear is strong, hardness is high, at low cost high abrasion valve
Sphere alloy material is badly in need of in current industry.
Summary of the invention
Based on above-mentioned analysis, the object of the invention is that providing a kind of anti-abrasive wear and adhesive wear is strong, hardness is high, close
Spend low, at low cost, the good high abrasion ball body of valve titanium alloy material of wearability.
In order to achieve the above object, the invention adopts the following technical scheme:
A kind of chemical component composition of high abrasion ball body of valve titanium alloy material includes (by mass percentage): TiC15%-
28%；Ni 6%-10%；Co 6%-10%；Cr3C2 2%；Surplus is WC and other inevitable impurity.
Further, by mass percentage, the chemical component composition of the ball body of valve titanium alloy material are as follows: TiC 28%；
Ni 7%；Co 7%；Cr3C22%；Surplus is WC and other inevitable impurity.
Further, by mass percentage, the chemical component composition of the ball body of valve titanium alloy material are as follows: TiC 35%；
Ni 7%；Co 7%；Cr3C2 2%；Surplus is WC and other inevitable impurity.
Further, by mass percentage, the chemical component composition of the ball body of valve titanium alloy material are as follows: TiC 40%；
Ni 10%；Co 10%；Cr3C2 2%；Surplus is WC and other inevitable impurity.
Further, by mass percentage, the chemical component composition of the ball body of valve titanium alloy material are as follows: TiC 20%；
Ni 7%；Co 7%；Cr3C22%；Surplus is WC and other inevitable impurity.
Further, by mass percentage, the chemical component composition of the ball body of valve titanium alloy material are as follows: TiC 15%；
Ni 6%；Co 6%；Cr3C22%；Surplus is WC and other inevitable impurity.
A kind of preparation method of ball body of valve titanium alloy material, comprising the following steps:
1) by metal powder TiC, Ni, Co, Cr3C2And WC is mixed in proportion, ball milling in the ball mill, and alcohol conduct is added
Ball-milling medium；
2) powder after grinding is dried under vacuum conditions, removes alcohol, added forming agent, graininess is made in powder；
3) cold isostatic press rubber is pressed and molded.
4) fusion is sintered under vacuum state.
Further, it is ground in the ball mill 72 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, additional amount described in the forming agent is the 8% of metal powder quality, and forming agent is SD resin.
Further, the isostatic cool pressing pressure is 80MPa, pressure maintaining 60s；Sintering temperature is 1500 DEG C, and sintering time is
16 hours, vacuum degree was less than 20Pa, and 1000-1050 DEG C of deaeration time is greater than 120min.
The beneficial effects of the present invention are:
1, at low cost.Formulation cost is low, TiC about 280 yuan/Kg of about 40 yuan/Kg, WC, and the per kilogram prices of raw materials are about 70 yuan low.Material
Expect that cost reduces about 25%.
2, light.The more general hard alloy of density low 40%, the product of same size, light weight 40%.
3, hardness is high, and wearability is good.Alloy rigidity is greater than HRA91.5, and product service life about increases by 200%.
Detailed description of the invention
Fig. 1 is high abrasion ball body of valve titanium alloy material micro-organization chart obtained by embodiment 1.
Fig. 2 is the abrasion test that high abrasion ball body of valve titanium alloy material made from embodiment 1 carries out under 25MPa pressure
Figure.
Specific embodiment
Embodiment 1
High abrasion ball body of valve titanium alloy material:
By mass percentage, by 28%TiC, 7%Ni, 7%Co, 2%Cr3C2And after surplus is the powder mixing of WC, in ball milling
Ball milling 72 hours in machine, 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 the powder after ball milling is dried under vacuum conditions, steams alcohol.Forming agent SD resin, SD resin are added in dried powder
Additional amount accounts for the 8% of powder quality, and powder is made to have suppression performance, and graininess is made in the sieving of 60 mesh.The molding of cold isostatic press rubber
Molding (isostatic cool pressing pressure is 80MPa, pressure maintaining 60s), vacuum sintering furnace sinters green body into, wherein and sintering temperature is 1500 DEG C,
Sintering time is 16 hours, and vacuum degree is less than 20Pa, and 1000-1050 DEG C of deaeration time is greater than 120min.
High abrasion ball body of valve titanium alloy material microscopic structure made from the present embodiment is as shown in Figure 1, the crystal grain of alloy is
The solid solution of titanium carbide and tungsten carbide, this is conducive to the hardness performance of material.
Abrasion test such as Fig. 2 that high abrasion ball body of valve titanium alloy material carries out under 25MPa pressure is made in the present embodiment
Shown, the abrasion loss in 72 hours is much smaller than general cemented carbide material, embodies excellent wear-resisting property.
High abrasion ball body of valve titanium alloy material density made from the present embodiment is low, density 9.0g/cm3；Light weight,
The 60% of only general hard alloy；Hardness > 91.5 HRA；Intensity > 1800N/mm2。
Embodiment 2
High abrasion ball body of valve titanium alloy material:
By mass percentage, by 35%TiC, 7%Ni, 7%Co, 2%Cr3C2And after surplus is the powder mixing of WC, in ball milling
Ball milling 72 hours in machine, 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 the powder after ball milling is dried under vacuum conditions, steams alcohol.Forming agent SD resin, SD resin are added in dried powder
Additional amount accounts for the 8% of powder quality, and powder is made to have suppression performance, and graininess is made in the sieving of 60 mesh.The molding of cold isostatic press rubber
Molding (isostatic cool pressing pressure is 80MPa, pressure maintaining 60s), vacuum sintering furnace sinters green body into, wherein and sintering temperature is 1500 DEG C,
Sintering time is 16 hours, and vacuum degree is less than 20Pa, and 1000-1050 DEG C of deaeration time is greater than 120min.
High abrasion ball body of valve titanium alloy material density made from the present embodiment is low, density 7.5g/cm3；Light weight,
The 60% of only general hard alloy；Hardness > 91 HRA；Intensity > 1350N/mm2。
Embodiment 3
High abrasion ball body of valve titanium alloy material:
By mass percentage, by 40%TiC, 10%Ni, 10%Co, 2%Cr3C2And after surplus is the powder mixing of WC, in ball
Ball milling 72 hours in grinding machine, ratio of grinding media to material 3:1, every kilogram of metal powder mixture addition 2L alcohol is as ball milling Jie when grinding
Matter.Then the powder after ball milling is dried under vacuum conditions, steams alcohol.Forming agent SD resin, SD are added in dried powder
Resin amount accounts for the 8% of powder quality, and powder is made to have suppression performance, and graininess is made in the sieving of 60 mesh.Cold isostatic press rubber
Compression molding (isostatic cool pressing pressure be 80MPa, pressure maintaining 60s), vacuum sintering furnace sinters green body into, wherein sintering temperature is
1500 DEG C, sintering time is 16 hours, and vacuum degree is less than 20Pa, and 1000-1050 DEG C of deaeration time is greater than 120min.
High abrasion ball body of valve titanium alloy material density made from the present embodiment is low, density 6.0g/cm3；Light weight,
The 60% of only general hard alloy；Hardness > 91.5HRA；Intensity > 950N/mm2。
Embodiment 4
High abrasion ball body of valve titanium alloy material:
By mass percentage, by 20%TiC, 7%Ni, 7%Co, 2%Cr3C2And after surplus is the powder mixing of WC, in ball milling
Ball milling 72 hours in machine, 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 the powder after ball milling is dried under vacuum conditions, steams alcohol.Forming agent SD resin, SD resin are added in dried powder
Additional amount accounts for the 8% of powder quality, and powder is made to have suppression performance, and graininess is made in the sieving of 60 mesh.The molding of cold isostatic press rubber
Molding (isostatic cool pressing pressure is 80MPa, pressure maintaining 60s), vacuum sintering furnace sinters green body into, wherein and sintering temperature is 1500 DEG C,
Sintering time is 16 hours, and vacuum degree is less than 20Pa, and 1000-1050 DEG C of deaeration time is greater than 120min.
High abrasion ball body of valve titanium alloy material density made from the present embodiment is low, density 11.0g/cm3；Quality
Gently, the 60% of only general hard alloy；Hardness > 89HRA；Intensity > 1800N/mm2。
Embodiment 5
High abrasion ball body of valve titanium alloy material:
By mass percentage, by 15%TiC, 6%Ni, 6%Co, 2%Cr3C2And after surplus is the powder mixing of WC, in ball milling
Ball milling 72 hours in machine, 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 the powder after ball milling is dried under vacuum conditions, steams alcohol.Forming agent SD resin, SD resin are added in dried powder
Additional amount accounts for the 8% of powder quality, and powder is made to have suppression performance, and graininess is made in the sieving of 60 mesh.The molding of cold isostatic press rubber
Molding (isostatic cool pressing pressure is 80MPa, pressure maintaining 60s), vacuum sintering furnace sinters green body into, wherein and sintering temperature is 1500 DEG C,
Sintering time is 16 hours, and vacuum degree is less than 20Pa, and 1000-1050 DEG C of deaeration time is greater than 120min.
High abrasion ball body of valve titanium alloy material density made from the present embodiment is low, density 12.5g/cm3；Quality
Gently, the 60% of only general hard alloy；Hardness > 88HRA；Intensity > 1800N/mm2。
Claims (10)
1. a kind of high abrasion ball body of valve titanium alloy material, which is characterized in that by mass percentage, the ball body of valve titanium alloy
The chemical component of material forms
TiC 15%-28%；Ni 6%-10%；Co 6%-10%；Cr3C22%；Surplus is WC and other inevitable impurity.
2. ball body of valve titanium alloy material according to claim 1, which is characterized in that by mass percentage, the valve
The chemical component of sphere titanium alloy material forms are as follows:
TiC 28%；Ni 7%；Co 7%；Cr3C22%；Surplus is WC and other inevitable impurity.
3. ball body of valve titanium alloy material according to claim 1, which is characterized in that by mass percentage, the valve
The chemical component of sphere titanium alloy material forms are as follows:
TiC 35%；Ni 7%；Co 7%；Cr3C2 2%；Surplus is WC and other inevitable impurity.
4. ball body of valve titanium alloy material according to claim 1, which is characterized in that by mass percentage, the valve
The chemical component of sphere titanium alloy material forms are as follows:
TiC 40%；Ni 10%；Co 10%；Cr3C2 2%；Surplus is WC and other inevitable impurity.
5. ball body of valve titanium alloy material according to claim 1, which is characterized in that by mass percentage, the valve
The chemical component of sphere titanium alloy material forms are as follows:
TiC 20%；Ni 7%；Co 7%；Cr3C22%；Surplus is WC and other inevitable impurity.
6. ball body of valve titanium alloy material according to claim 1, which is characterized in that by mass percentage, the valve
The chemical component of sphere titanium alloy material forms are as follows:
TiC 15%；Ni 6%；Co 6%；Cr3C22%；Surplus is WC and other inevitable impurity.
7. a kind of preparation method of ball body of valve titanium alloy material as claimed in any one of claims 1 to 6, which is characterized in that
Method includes the following steps:
1) by metal powder TiC, Ni, Co, Cr3C2And WC is mixed in proportion, ball milling in the ball mill, and alcohol conduct is added
Ball-milling medium；
2) powder after grinding is dried under vacuum conditions, removes alcohol, added forming agent, graininess is made in powder；
3) cold isostatic press rubber is pressed and molded；
4) fusion is sintered under vacuum state.
8. the method according to the description of claim 7 is characterized in that it is small to grind 72 in the ball mill after metal powder mixing
When, ratio of grinding media to material 3:1, every kilogram of metal powder mixture adds 2L alcohol.
9. the method according to the description of claim 7 is characterized in that the forming agent additional amount be metal powder quality 8%,
Forming agent is SD resin.
10. the method according to the description of claim 7 is characterized in that the isostatic cool pressing pressure is 80MPa, pressure maintaining 60s；It burns
Junction temperature is 1500 DEG C, and sintering time is 16 hours, and vacuum degree is less than 20Pa, and 1000-1050 DEG C of deaeration time is greater than 120min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111961939A (en) * | 2020-08-17 | 2020-11-20 | 苏州用朴精密科技有限公司 | Preparation method of hard alloy material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367535A (en) * | 2011-09-01 | 2012-03-07 | 四川科力特硬质合金股份有限公司 | Titanium carbide-tungsten carbide matrix lightweight cemented carbide with cobalt and nickel being binding phase and preparation method thereof |
| US8968834B2 (en) * | 2008-09-15 | 2015-03-03 | Igor Yuri Konyashin | Wear part with hard facing |
-
2019
- 2019-01-29 CN CN201910083362.4A patent/CN109735756A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8968834B2 (en) * | 2008-09-15 | 2015-03-03 | Igor Yuri Konyashin | Wear part with hard facing |
| CN102367535A (en) * | 2011-09-01 | 2012-03-07 | 四川科力特硬质合金股份有限公司 | Titanium carbide-tungsten carbide matrix lightweight cemented carbide with cobalt and nickel being binding phase and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111961939A (en) * | 2020-08-17 | 2020-11-20 | 苏州用朴精密科技有限公司 | Preparation method of hard alloy material |
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