CN105772733A - Manufacturing method of polycrystalline diamond compacts with super-thick diamond layers - Google Patents

Manufacturing method of polycrystalline diamond compacts with super-thick diamond layers Download PDF

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Publication number
CN105772733A
CN105772733A CN201610175010.8A CN201610175010A CN105772733A CN 105772733 A CN105772733 A CN 105772733A CN 201610175010 A CN201610175010 A CN 201610175010A CN 105772733 A CN105772733 A CN 105772733A
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Prior art keywords
diamond
polycrystalline diamond
disk
polycrystalline
temperature
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CN201610175010.8A
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CN105772733B (en
Inventor
屈继来
李思成
陈金兰
马姗姗
尚秋元
方海江
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HENAN SIFANG SUPER HARD MATERIAL CO Ltd
Henan SF Diamond Co Ltd
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HENAN SIFANG SUPER HARD MATERIAL CO Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/08Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12Both compacting and sintering
    • B22F3/14Both compacting and sintering simultaneously
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12Both compacting and sintering
    • B22F3/14Both compacting and sintering simultaneously
    • B22F2003/145Both compacting and sintering simultaneously by warm compacting, below debindering temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00Aspects linked to processes or compositions used in powder metallurgy

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The invention discloses a manufacturing method of polycrystalline diamond compacts with super-thick diamond layers and solves the problem that the polycrystalline diamond compacts cannot be synthesized when the thickness of the diamond layers is 3.0mm. The method comprises the following steps: firstly synthesizing polycrystalline diamond blank wafers by using diamond micro powder and metal powder under the high-temperature and high-pressure condition, manufacturing transition layers mixed with a plurality of metals on the polycrystalline diamond blank wafers and stacking tungsten carbide alloys on the transition layers, and sintering to form the polycrystalline diamond compacts with super-thick diamond layers. According to the technical scheme, the method is capable of producing batches of polycrystalline diamond compacts with the diamond layers with thickness being greater than or equal to 3.0mm; the yield is greater than 90%.

Description

A kind of manufacture method of the composite polycrystal-diamond of super thick diamond layer
Technical field
The present invention relates to superhard material manufacturing technology, be specifically related to the manufacture method of the composite polycrystal-diamond of a kind of super thick diamond layer.
Background technology
Composite polycrystal-diamond has the hardness of diamond and the toughness of wearability and carbide matrix material and weldability, it is a kind of excellent cutting element and high-abrasive material, is widely used in non-ferrous metals processing, wood materials processing, elastomeric material processing, plastic material processing, truer, high abrasion workpiece etc..
Inevitably there is composite all Problems existing in composite polycrystal-diamond as the composite of a kind of high rigidity, high abrasion, namely due to the difference of thermal coefficient of expansion between different materials, produce stress to concentrate at material interface place, thus causing material to deform, the defect such as internal voids, crackle.Due to the existence of these problems, the diamond layer thickness of the composite polycrystal-diamond of wide variety of employing static high pressure method synthesis in the market is at 0.3 ~ 2.2mm, and its yield rate is between 50 ~ 80%;When diamond layer thickness is when 2.2 ~ 3.0mm, the yield rate of composite polycrystal-diamond is less than 30%;When diamond layer thickness is more than 3.0mm, the yield rate of composite polycrystal-diamond is almost nil.
Summary of the invention
In order to solve problem of the prior art, the invention provides the manufacture method of the composite polycrystal-diamond of a kind of diamond layer super thick, when solving diamond layer more than 3.0mm, the problem that composite polycrystal-diamond cannot synthesize.
The technical solution used in the present invention is: the manufacture method of the composite polycrystal-diamond of a kind of super thick diamond layer, comprises the steps:
The first step, makes polycrystalline diamond base disk;By diadust and metal powder temperature be 1350-1600 DEG C, pressure be 6.5GPa when the synthesis thickness polycrystalline diamond base be more than or equal to 3mm, polycrystalline diamond base is made after spark machined, grinding, slow wire feeding cutting processing polycrystalline diamond base disk;
Second step, makes transition zone;By one or several the mixture powder in cobalt, nickel, tungsten, ferrum, titanium, silver, copper, zinc, stannum, lead temperature be 300 ~ 600 DEG C, pressure be 4 ~ 10MPa, temperature retention time be 3 ~ 10min when Vacuum Pressure make the disk that thickness is 0.15 ~ 0.2mm, diameter is identical with polycrystalline diamond base disk;
3rd step, is fabricated to diamondite and the disk of polycrystalline diamond base disk same diameter;
4th step, it is stacked together polycrystalline diamond base disk, transition zone disk and tungsten carbide disk in accordance with the order from top to bottom to assemble and makees as a whole to put into hot pressed sintering in vacuum sintering funace, sintering temperature is 500 ~ 750 DEG C, sintering pressure is 5 ~ 20MPa, temperature retention time is 30 ~ 60min, forms the composite polycrystal-diamond of polycrystalline diamond layer super thick after having sintered.
Further, described metal powder is one or several the mixture in cobalt, nickel, tungsten, ferrum, titanium, silver, copper, zinc, stannum, lead.
The beneficial effect comprise that: adopt the technical scheme in the present invention to be possible not only to the composite polycrystal-diamond of batch production diamond layer 3.0mm, and yield rate is more than 90%.
Accompanying drawing explanation
Fig. 1 is the structural representation of composite polycrystal-diamond in the present invention.
Detailed description of the invention
It is below a kind of embodiment of the present invention, this embodiment is 11mm in order to manufacture gross thickness, diameter 30mm, the composite polycrystal-diamond of thickness of diamond 5.5mm.
The manufacturing step that the present embodiment adopts is:
The first step, by diadust and cobalt, nickel, tungsten, ferrum, silver mixed metal powder temperature be 1350-1600 DEG C, pressure be 6.5GPa when synthesis diameter to be 31mm, thickness be 6.5mm polycrystalline diamond base, polycrystalline diamond base is made through electric spark and attrition process that to become diameter be that 30.0mm, thickness are the polycrystalline diamond base disk of 5.5mm and clean up surface.
Second step, it is 1-5% by certain mass and silver proportion, copper proportion is 35-70%, zinc proportion is 5-20%, stannum proportion is 1-5%, plumbous proportion is the silver of 1-10%, copper, zinc, stannum, plumbous mixed powder is 350 DEG C in temperature, and pressure is 5.0MPa, temperature retention time be 3min vacuum condition under be pressed into diameter to be 30.0mm, thickness be the transition zone disk of 0.2mm.
3rd step, it be 30.0mm, thickness is the disk of 6.0mm that diamondite is fabricated to diameter.
4th step, it is 30.0mm by the diameter prepared respectively in above-mentioned steps, thickness is the polycrystalline diamond base disk of 5.5mm, diameter is 30.0mm, thickness is the transition zone disk of 0.2mm, diameter is 30.0mm, thickness is the diamondite disk of 6.0mm, it is stacked together in accordance with the order from top to bottom to assemble and makees as a whole to put in vacuum sintering funace, it it is 580 DEG C in temperature, pressure is 7.0MPa, temperature retention time be 8min vacuum condition under form the composite polycrystal-diamond of a kind of diamond layer super thick, eventually passing plain grinding, to be processed into gross thickness be 11mm, diameter is 30mm, diamond layer thickness is the composite polycrystal-diamond of 5.5mm.

Claims (2)

1. a manufacture method for the composite polycrystal-diamond of super thick diamond layer, comprises the steps:
The first step, makes polycrystalline diamond base disk;By diadust and metal powder temperature be 1350-1600 DEG C, pressure be 6.5GPa when the synthesis thickness polycrystalline diamond base be more than or equal to 3mm, polycrystalline diamond base is made after spark machined, grinding, slow wire feeding cutting processing polycrystalline diamond base disk;
Second step, makes transition zone;By one or several the mixture powder in cobalt, nickel, tungsten, ferrum, titanium, silver, copper, zinc, stannum, lead temperature be 300 ~ 600 DEG C, pressure be 4 ~ 10MPa, temperature retention time be 3 ~ 10min when Vacuum Pressure make the disk that thickness is 0.15 ~ 0.2mm, diameter is identical with polycrystalline diamond base disk;
3rd step, is fabricated to diamondite and the disk of polycrystalline diamond base disk same diameter;
4th step, it is stacked together polycrystalline diamond base disk, transition zone disk and tungsten carbide disk in accordance with the order from top to bottom to assemble and makees as a whole to put into hot pressed sintering in vacuum sintering funace, sintering temperature is 500 ~ 750 DEG C, sintering pressure is 5 ~ 20MPa, temperature retention time is 30 ~ 60min, forms the composite polycrystal-diamond of polycrystalline diamond layer super thick after having sintered.
2. the manufacture method of the composite polycrystal-diamond of a kind of super thick diamond layer according to claim 1 is characterized in that: described metal powder is one or several the mixture in cobalt, nickel, tungsten, ferrum, titanium, silver, copper, zinc, stannum, lead.
CN201610175010.8A 2016-03-25 2016-03-25 A kind of manufacturing method of the composite polycrystal-diamond of super thick diamond layer Active CN105772733B (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106112830A (en) * 2016-08-19 2016-11-16 广州晶体科技有限公司 Edging wheel and manufacture method thereof
CN108422342A (en) * 2017-02-13 2018-08-21 江苏信实精密工具有限公司 Modify the moulding process and graphite matrix of the diamond roller of grinding wheel
CN109396448A (en) * 2017-08-18 2019-03-01 深圳先进技术研究院 Composite polycrystal-diamond and preparation method thereof
CN110142305A (en) * 2019-05-28 2019-08-20 河南四方达超硬材料股份有限公司 A kind of polycrystalline diamond wire drawing die base of highly resistance decylization and preparation method thereof
CN115213413A (en) * 2021-06-18 2022-10-21 河南四方达超硬材料股份有限公司 Composite superhard part and production process thereof
USD997219S1 (en) 2021-10-14 2023-08-29 Sf Diamond Co., Ltd. Polycrystalline diamond compact with a double-layer structure
US11772977B2 (en) 2019-07-10 2023-10-03 Sf Diamond Co., Ltd. Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom
USD1006074S1 (en) 2021-10-14 2023-11-28 Sf Diamond Co., Ltd. Polycrystalline diamond compact with a raised triangular structure
USD1006073S1 (en) 2021-10-14 2023-11-28 Sf Diamond Co., Ltd. Polycrystalline diamond compact with a raised surface sloping to a peripheral extension
USD1026980S1 (en) 2021-10-14 2024-05-14 Sf Diamond Co., Ltd. Polycrystalline diamond compact with a raised surface and groove therein
USD1026981S1 (en) 2021-10-14 2024-05-14 Sf Diamond Co., Ltd. Polycrystalline diamond compact with a tripartite raised surface

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US5510193A (en) * 1994-10-13 1996-04-23 General Electric Company Supported polycrystalline diamond compact having a cubic boron nitride interlayer for improved physical properties
US20100281782A1 (en) * 2009-05-06 2010-11-11 Keshavan Madapusi K Methods of making and attaching tsp material for forming cutting elements, cutting elements having such tsp material and bits incorporating such cutting elements
CN102223973A (en) * 2008-10-21 2011-10-19 六号元素(产品)(控股)公司 A polycrystalline diamond composite compact element, tools incorporating same and method for making same
CN102656128A (en) * 2009-07-31 2012-09-05 第六元素公司 Polycrystalline diamond composite compact
US20130092451A1 (en) * 2011-10-18 2013-04-18 Us Synthetic Corporation Polycrystalline diamond compacts, related products, and methods of manufacture
CN103072332A (en) * 2012-12-27 2013-05-01 深圳市海明润实业有限公司 Polycrystalline diamond compact and preparation method thereof
CN104057094A (en) * 2013-03-22 2014-09-24 三菱综合材料株式会社 Multilayer Gradient Functional Composite Diamond Sintered Body
US20140318027A1 (en) * 2006-11-20 2014-10-30 Us Synthetic Corporation Methods of making polycrystalline diamond compacts
CN104399990A (en) * 2014-10-23 2015-03-11 金华中烨超硬材料有限公司 Hard alloy-polycrystalline diamond compact with decorative patterns on surface and preparation method thereof
CN104863513A (en) * 2015-04-29 2015-08-26 富耐克超硬材料股份有限公司 Polycrystalline diamond compact and preparation method thereof
US20160002982A1 (en) * 2011-10-18 2016-01-07 Us Synthetic Corporation Polycrystalline diamond compacts, related products, and methods of manufacture

Patent Citations (11)

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Publication number Priority date Publication date Assignee Title
US5510193A (en) * 1994-10-13 1996-04-23 General Electric Company Supported polycrystalline diamond compact having a cubic boron nitride interlayer for improved physical properties
US20140318027A1 (en) * 2006-11-20 2014-10-30 Us Synthetic Corporation Methods of making polycrystalline diamond compacts
CN102223973A (en) * 2008-10-21 2011-10-19 六号元素(产品)(控股)公司 A polycrystalline diamond composite compact element, tools incorporating same and method for making same
US20100281782A1 (en) * 2009-05-06 2010-11-11 Keshavan Madapusi K Methods of making and attaching tsp material for forming cutting elements, cutting elements having such tsp material and bits incorporating such cutting elements
CN102656128A (en) * 2009-07-31 2012-09-05 第六元素公司 Polycrystalline diamond composite compact
US20130092451A1 (en) * 2011-10-18 2013-04-18 Us Synthetic Corporation Polycrystalline diamond compacts, related products, and methods of manufacture
US20160002982A1 (en) * 2011-10-18 2016-01-07 Us Synthetic Corporation Polycrystalline diamond compacts, related products, and methods of manufacture
CN103072332A (en) * 2012-12-27 2013-05-01 深圳市海明润实业有限公司 Polycrystalline diamond compact and preparation method thereof
CN104057094A (en) * 2013-03-22 2014-09-24 三菱综合材料株式会社 Multilayer Gradient Functional Composite Diamond Sintered Body
CN104399990A (en) * 2014-10-23 2015-03-11 金华中烨超硬材料有限公司 Hard alloy-polycrystalline diamond compact with decorative patterns on surface and preparation method thereof
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106112830B (en) * 2016-08-19 2018-03-13 广州晶体科技有限公司 Edging wheel and its manufacture method
CN106112830A (en) * 2016-08-19 2016-11-16 广州晶体科技有限公司 Edging wheel and manufacture method thereof
CN108422342A (en) * 2017-02-13 2018-08-21 江苏信实精密工具有限公司 Modify the moulding process and graphite matrix of the diamond roller of grinding wheel
CN108422342B (en) * 2017-02-13 2020-02-21 江苏信实精密工具有限公司 Forming process of diamond roller for dressing grinding wheel and graphite matrix
CN109396448A (en) * 2017-08-18 2019-03-01 深圳先进技术研究院 Composite polycrystal-diamond and preparation method thereof
CN110142305A (en) * 2019-05-28 2019-08-20 河南四方达超硬材料股份有限公司 A kind of polycrystalline diamond wire drawing die base of highly resistance decylization and preparation method thereof
US11772977B2 (en) 2019-07-10 2023-10-03 Sf Diamond Co., Ltd. Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom
CN115213413A (en) * 2021-06-18 2022-10-21 河南四方达超硬材料股份有限公司 Composite superhard part and production process thereof
USD997219S1 (en) 2021-10-14 2023-08-29 Sf Diamond Co., Ltd. Polycrystalline diamond compact with a double-layer structure
USD1006074S1 (en) 2021-10-14 2023-11-28 Sf Diamond Co., Ltd. Polycrystalline diamond compact with a raised triangular structure
USD1006073S1 (en) 2021-10-14 2023-11-28 Sf Diamond Co., Ltd. Polycrystalline diamond compact with a raised surface sloping to a peripheral extension
USD1026980S1 (en) 2021-10-14 2024-05-14 Sf Diamond Co., Ltd. Polycrystalline diamond compact with a raised surface and groove therein
USD1026981S1 (en) 2021-10-14 2024-05-14 Sf Diamond Co., Ltd. Polycrystalline diamond compact with a tripartite raised surface

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