CN105970063A - Method for preparing coated tungsten alloy material - Google Patents
Method for preparing coated tungsten alloy material Download PDFInfo
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- CN105970063A CN105970063A CN201610387598.3A CN201610387598A CN105970063A CN 105970063 A CN105970063 A CN 105970063A CN 201610387598 A CN201610387598 A CN 201610387598A CN 105970063 A CN105970063 A CN 105970063A
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- powder
- tungsten
- alloy
- tungsten alloy
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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
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a method for preparing a coated tungsten alloy material. The matrix of the tungsten alloy material comprises the following components by weight: 90-95 parts of WC powder with the Fisher particle size of 1-1.5 [mu]m, 8-12 parts of Co powder with the Fisher particle size of 0.5-0.8 [mu]m, 1-2 parts of B powder and 0.5-1 part of graphite powder. According to the tungsten alloy material prepared according to the method, the purpose of remarkably improving and controlling material tissues can be fulfilled, so that the strength and the hardness of the prepared tungsten alloy material can be perfectly matched. Accordingly, the comprehensive performance is excellent.
Description
Technical field
The present invention relates to alloy material and manufacture field, be specifically related to a kind of preparation method having cated tungsten alloy material.
Background technology
Hard alloy has the features such as high intensity, high rigidity, excellent wearability, thermostability and good corrosion resistance, is therefore widely used in the working environments such as high pressure, high rotating speed, high temperature, Korrosionsmedium
Via is one of important component part of PCB, and its effect is the electrical connection passage of each interlayer and the fixing of device or hole, location, and with PCB, micro-to creep into row machine drilling be the most frequently used processing method.Conventional PCB bit life is 2000-3000 hole, but due to Modern appliances increasingly intelligence and volume miniaturization, thin wire, the Manufacturing Technology for PCB development speed of thin space is quickly, the new material of PCB version is more and more harder, owing to material existing the firmest material, the thermal conductivity of material is low, the more and more high influence factor of speed of processing, process in processing can produce increasing heat, accelerate the abrasion of cutter, PCB bit life is shortened dramatically, according to statistics, the main failure forms of PCB drill bit is abrasion, fracture, this just requires that the micro-drill bit material capability processing printing board PCB hole is to higher intensity, hardness, wearability direction is developed.
Tungsten and alloy thereof, due to the advantage such as have that fusing point is high, intensity is big, electrical and thermal conductivity performance good, etch resistant properties is strong and mechanical behavior under high temperature is good, are widely used in the high-temperature fields such as high-temperature heating, glass melting, thermal structure support member.
Summary of the invention
The present invention provides a kind of preparation method having cated tungsten alloy material, tungsten alloy material prepared by the method, can reach the purpose significantly improving and controlling materials microstructure structure so that the tungsten alloy material intensity of preparation and hardness can reach perfectly to mate, high comprehensive performance.
To achieve these goals, the invention provides a kind of preparation method having cated tungsten alloy material, this tungsten alloy material matrix is made up of following components by weight percent: Fisher particle size is WC powder 90-95 part of 1-1.5 μm, Fisher particle size is Co powder 8-12 part of 0.5-0.8 μm, B powder 1-2 part, graphite powder 0.5-1 part；
The method comprises the steps:
(1) each material component is chosen by above-mentioned material formula；
(2) select 1Kg agitating ball mill, be initially charged B powder, C powder and Co powder, add amylalcohol as abrasive media in the ratio of 500ml/kg, add mill ball by ratio of grinding media to material example 5:1, be stirred grinding, mill ball diameter D7, ball mill mixing speed 480rpm, activity coefficient is 0.85, grinds 1 hour；
(3) then add tungsten carbide to grind 5-7 hour, form slip, form slip；
(4) filtering, be dried, the mesh number of filtration is 40-50 mesh, and baking temperature is 70-85 DEG C, makes carbide alloy mixture grain；
(5) by carbide alloy mixture grain by molding or extruding or injection mo(u)lding, hard alloy blank is made；
(6) hard alloy blank entering sintering furnace and be sintered molding, sintering temperature during sinter molding is 1400-1425 DEG C, Ar pressure is 8-10Mpa, sintering time is 30-100min, obtains tungsten alloy matrix；
(7) as following weight percent prepare cladding metal dust: 10%≤Zr≤15%, 2%≤Ni≤8%, 1%≤Si≤2%, 1%≤B≤5%, 2%≤C≤6%, tungsten powder is surplus, ball milling mixes, and the particle size range of metal dust is 60-100 micron；
(8) use jointed fiber laser instrument, set melting and coating process, use synchronous powder feeding system mode that the metal dust in step (7) is carried out multiple tracks cladding, be cooled to room temperature, tungsten nickel matrix is prepared a lamination gold plating；
(9) use jointed fiber laser instrument, set remelting processing, the alloy coat prepared is carried out Alloy by Laser Surface Remelting, be cooled to room temperature, it is thus achieved that tungsten nickel material in step (8).
Preferably, the melting and coating process in step (8) refers to: set gradually laser power 500-1000W, spot diameter 1-2mm, overlapping rate 0.3-0.5, scanning speed 500-1000mm/min, and synchronous powder feeding system amount is 5-15g/min, protects argon flow amount 10-20L/min.
Preferably, the remelting processing in step (9) refers to: sets gradually laser power 500-2000W, hot spot 1-2mm, overlapping rate 0.3-0.5, scanning speed 1000-2000mm/min, protects argon flow amount 10-20L/min.
The tungsten alloy material prepared according to said method, can reach the purpose significantly improving and controlling materials microstructure structure so that the tungsten alloy material intensity of preparation and hardness can reach perfectly to mate, high comprehensive performance.
Detailed description of the invention
Embodiment one
The tungsten alloy material matrix of the present embodiment is made up of following components by weight percent: Fisher particle size is 90 parts of the WC powder of 1-1.5 μm, and Fisher particle size is 8 parts of the Co powder of 0.5-0.8 μm, 1 part of B powder, graphite powder 0.5 part.
Each material component is chosen by above-mentioned material formula.
Select 1Kg agitating ball mill, be initially charged B powder, C powder and Co powder, add amylalcohol as abrasive media in the ratio of 500ml/kg, add mill ball by ratio of grinding media to material example 5:1, be stirred grinding, mill ball diameter D7, ball mill mixing speed 480rpm, activity coefficient is 0.85, grinds 1 hour.
Then add tungsten carbide to grind 5 hours, form slip, form slip.
Filtering, be dried, the mesh number of filtration is 40 mesh, and baking temperature is 70 DEG C, makes carbide alloy mixture grain.
By carbide alloy mixture grain by molding or extruding or injection mo(u)lding, make hard alloy blank.
Hard alloy blank entering sintering furnace and is sintered molding, sintering temperature during sinter molding is 1400 DEG C, Ar pressure is 8Mpa, sintering time is 30min, obtains tungsten alloy matrix.
As following weight percent prepare cladding metal dust: Zr 10%, Ni 2%, Si 1%, B 1%, C 2%, tungsten powder is surplus, ball milling mix, the particle size range of metal dust is 60-100 micron.
Use jointed fiber laser instrument, set melting and coating process, use synchronous powder feeding system mode that metal dust is carried out multiple tracks cladding, be cooled to room temperature, matrix is prepared a lamination gold plating.
Use jointed fiber laser instrument, set remelting processing, prepared alloy coat is carried out Alloy by Laser Surface Remelting, is cooled to room temperature, it is thus achieved that tungsten nickel material.
Melting and coating process refers to: setting gradually laser power 500W, spot diameter 1mm, overlapping rate 0.3, scanning speed 500mm/min, synchronous powder feeding system amount is 5g/min, protects argon flow amount 10L/min.
Remelting processing refers to: sets gradually laser power 500W, hot spot 1mm, overlapping rate 0.3, scanning speed 1000mm/min, protects argon flow amount 10L/min.
Embodiment two
The tungsten alloy material matrix of the present embodiment is made up of following components by weight percent: Fisher particle size is 95 parts of the WC powder of 1-1.5 μm, and Fisher particle size is 12 parts of the Co powder of 0.5-0.8 μm, 2 parts of B powder, graphite powder 1 part.
Each material component is chosen by above-mentioned material formula.
Select 1Kg agitating ball mill, be initially charged B powder, C powder and Co powder, add amylalcohol as abrasive media in the ratio of 500ml/kg, add mill ball by ratio of grinding media to material example 5:1, be stirred grinding, mill ball diameter D7, ball mill mixing speed 480rpm, activity coefficient is 0.85, grinds 1 hour.
Then add tungsten carbide to grind 7 hours, form slip, form slip.
Filtering, be dried, the mesh number of filtration is 50 mesh, and baking temperature is 85 DEG C, makes carbide alloy mixture grain.
By carbide alloy mixture grain by molding or extruding or injection mo(u)lding, make hard alloy blank.
Hard alloy blank entering sintering furnace and is sintered molding, sintering temperature during sinter molding is 1425 DEG C, Ar pressure is 10Mpa, sintering time is 100min, obtains tungsten alloy matrix.
As following weight percent prepare cladding metal dust: Zr 15%, Ni 8%, Si 2%, B 5%, C 6%, tungsten powder is surplus, ball milling mix, the particle size range of metal dust is 60-100 micron.
Use jointed fiber laser instrument, set melting and coating process, use synchronous powder feeding system mode that metal dust is carried out multiple tracks cladding, be cooled to room temperature, matrix is prepared a lamination gold plating.
Use jointed fiber laser instrument, set remelting processing, prepared alloy coat is carried out Alloy by Laser Surface Remelting, is cooled to room temperature, it is thus achieved that tungsten nickel material.
Melting and coating process refers to: setting gradually laser power 1000W, spot diameter 2mm, overlapping rate 0.5, scanning speed 1000mm/min, synchronous powder feeding system amount is 15g/min, protects argon flow amount 20L/min.
Remelting processing refers to: sets gradually laser power 2000W, hot spot 2mm, overlapping rate 0.5, scanning speed 2000mm/min, protects argon flow amount 20L/min.
The test carrying out the product of embodiment 1-2, test result shows: the room temperature tensile intensity of product is more than 782MPa, and Rockwell hardness is more than 84.6.
Claims (3)
1. the preparation method having cated tungsten alloy material, this tungsten alloy material matrix is made up of following components by weight percent: Fisher particle size is WC powder 90-95 part of 1-1.5 μm, Fisher particle size is Co powder 8-12 part of 0.5-0.8 μm, B powder 1-2 part, graphite powder 0.5-1 part；
The method comprises the steps:
(1) each material component is chosen by above-mentioned material formula；
(2) select 1Kg agitating ball mill, be initially charged B powder, C powder and Co powder, add amylalcohol as abrasive media in the ratio of 500ml/kg, add mill ball by ratio of grinding media to material example 5:1, be stirred grinding, mill ball diameter D7, ball mill mixing speed 480rpm, activity coefficient is 0.85, grinds 1 hour；
(3) then add tungsten carbide to grind 5-7 hour, form slip, form slip；
(4) filtering, be dried, the mesh number of filtration is 40-50 mesh, and baking temperature is 70-85 DEG C, makes carbide alloy mixture grain；
(5) by carbide alloy mixture grain by molding or extruding or injection mo(u)lding, hard alloy blank is made；
(6) hard alloy blank entering sintering furnace and be sintered molding, sintering temperature during sinter molding is 1400-1425 DEG C, Ar pressure is 8-10Mpa, sintering time is 30-100min, obtains tungsten alloy matrix；
(7) as following weight percent prepare cladding metal dust: 10%≤Zr≤15%, 2%≤Ni≤8%, 1%≤Si≤2%, 1%≤B≤5%, 2%≤C≤6%, tungsten powder is surplus, ball milling mixes, and the particle size range of metal dust is 60-100 micron；
(8) use jointed fiber laser instrument, set melting and coating process, use synchronous powder feeding system mode that the metal dust in step (7) is carried out multiple tracks cladding, be cooled to room temperature, tungsten nickel matrix is prepared a lamination gold plating；
(9) use jointed fiber laser instrument, set remelting processing, the alloy coat prepared is carried out Alloy by Laser Surface Remelting, be cooled to room temperature, it is thus achieved that tungsten nickel material in step (8).
2. the method for claim 1; it is characterized in that; melting and coating process in step (8) refers to: set gradually laser power 500-1000W; spot diameter 1-2mm; overlapping rate 0.3-0.5; scanning speed 500-1000mm/min, synchronous powder feeding system amount is 5-15g/min, protects argon flow amount 10-20L/min.
3. the method for claim 1, it is characterised in that the remelting processing in step (9) refers to: set gradually laser power 500-2000W, hot spot 1-2mm, overlapping rate 0.3-0.5, scanning speed 1000-2000mm/min, protect argon flow amount 10-20L/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610387598.3A CN105970063A (en) | 2016-06-04 | 2016-06-04 | Method for preparing coated tungsten alloy material |
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| CN201610387598.3A CN105970063A (en) | 2016-06-04 | 2016-06-04 | Method for preparing coated tungsten alloy material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213446A (en) * | 2018-03-07 | 2018-06-29 | 戴爱娟 | A kind of preparation method for the tungsten alloy for having silicon coating |
| CN108251814A (en) * | 2018-03-07 | 2018-07-06 | 瞿凌飞 | A kind of preparation method for the tungsten alloy for having memory alloy layer |
| CN111362700A (en) * | 2020-03-30 | 2020-07-03 | 苏州汉尼威电子技术有限公司 | Hot-melting drill bit and machining method |
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| US5368628A (en) * | 1992-12-21 | 1994-11-29 | Valenite Inc. | Articles of ultra fine grained cemented carbide and process for making same |
| JP2000266055A (en) * | 1999-03-18 | 2000-09-26 | Kinzoku Giken Kk | Corrosion- and abrasion-resistant sliding member and manufacturing of the same |
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| CN103060651A (en) * | 2012-12-28 | 2013-04-24 | 鞍山煜宸科技有限公司 | Nano ceramic alloy material for strengthening surface of ductile iron roller with laser and preparation method thereof |
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-
2016
- 2016-06-04 CN CN201610387598.3A patent/CN105970063A/en active Pending
Patent Citations (6)
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| US5368628A (en) * | 1992-12-21 | 1994-11-29 | Valenite Inc. | Articles of ultra fine grained cemented carbide and process for making same |
| JP2000266055A (en) * | 1999-03-18 | 2000-09-26 | Kinzoku Giken Kk | Corrosion- and abrasion-resistant sliding member and manufacturing of the same |
| CN101215662A (en) * | 2008-01-07 | 2008-07-09 | 刘嵘 | Tungsten alloy used for jewelry and ornamental article, and preparation method thereof |
| CN103060651A (en) * | 2012-12-28 | 2013-04-24 | 鞍山煜宸科技有限公司 | Nano ceramic alloy material for strengthening surface of ductile iron roller with laser and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213446A (en) * | 2018-03-07 | 2018-06-29 | 戴爱娟 | A kind of preparation method for the tungsten alloy for having silicon coating |
| CN108251814A (en) * | 2018-03-07 | 2018-07-06 | 瞿凌飞 | A kind of preparation method for the tungsten alloy for having memory alloy layer |
| CN111362700A (en) * | 2020-03-30 | 2020-07-03 | 苏州汉尼威电子技术有限公司 | Hot-melting drill bit and machining method |
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Application publication date: 20160928 |
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