CN107447154A - A kind of mining instrument hard alloy and preparation method thereof - Google Patents
A kind of mining instrument hard alloy and preparation method thereof Download PDFInfo
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- CN107447154A CN107447154A CN201710547044.XA CN201710547044A CN107447154A CN 107447154 A CN107447154 A CN 107447154A CN 201710547044 A CN201710547044 A CN 201710547044A CN 107447154 A CN107447154 A CN 107447154A
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- hard 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
- 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
Abstract
A kind of mining instrument hard alloy and preparation method thereof, including 80 97 parts of tungsten carbide hard phase, 28 parts of bonding phases, 12 parts of additives and 12 parts of forming agents, specific preparation method are as follows：1st, tungsten carbide hard phase is mixed, be bonded mutually and forming agent is added after additive wet-milling is carried out by water, added in wet-milling and quantify forming agent, it is standby after wet-milling resulting mixture；2nd, said mixture is added into additive ball milling 6 48 hours, the addition of ball milling later stage is by graphene of the ultrasonic disperse in water and CNT into raw material for standby；3rd, granulation is dried in above-mentioned raw materials, and compressing is that raw embryo is standby；4th, above-mentioned raw embryo is formed by a firing as hard alloy；The present invention can effectively improve the synthesis hardness and toughness of hard alloy by adding graphene and CNT, improve its red hardness and wear resistance, and rock machining life tools 30% can be improved by optimizing the hard alloy after improving.
Description
Technical field
The present invention relates to field of material preparation, more particularly to a kind of mining instrument hard alloy and preparation method thereof.
Background technology
Hard alloy is due to its higher hardness and wearability, wide and relative to the better toughness of ceramic material
It is general to be applied to metal cutting, grinding tool, the industry such as mechanical engineering and probing digging.When hard alloy is carrying out rock machining, rock
The contact surface of stone and alloy is by the very short time（0.1s）Power of the interior generation from 0 to 10 ton and it is raised to 800 or 1000 ° from room temperature
C, and such case is as the rotation of drill bit is that high frequency repeats, therefore it is red to the hardness, wearability, high temperature of hard alloy
Hardness and thermal fatigue property have very high requirement.With the horizontal fast development of commercial Application, the performance of hard alloy is carried
Higher requirement is gone out.Particularly in rock machining application, more complicated geological formations situation and client work product
The pursuit of efficiency, it is more harsh to performance requirements such as the synthesis wearability of mine hard alloy and red hardness.
Conventional hard alloy is combined using WC and Co, is closed by changing WC crystallite dimension, and Co content to adjust
The hardness and toughness of gold, so as to meet the requirement under different operating modes to instrument wearability and intensity.But this conventional method is limited
In WC and Co combination own material intrinsic performance limitations, also need to take into account toughness while improving hardness, especially occurring to glue
In the case of abrasion, the hardness of Binder Phase not enough brings the decline of overall performance.When, mill higher in face of work formation hardness
Damage, when especially adhesive wear causes tool failures, traditional WC-Co combinations are even more that can not provide effective solution.
The content of the invention
In order to solve the above technical problems, the present invention proposes following technical scheme：
A kind of mining instrument hard alloy and preparation method thereof, including tungsten carbide hard phase 80-97 parts, 2-8 parts bonding phase, 1-2
Part additive and 1-2 part forming agents, specific preparation method are as follows：
Step A：Mix tungsten carbide hard phase, bonding and mutually and after additive add forming agent by water progress wet-milling, in wet-milling
Add and quantify forming agent, it is standby after wet-milling resulting mixture；
Step B：Said mixture is added into additive ball milling 6-48 hours, the addition of ball milling later stage is by ultrasonic disperse in water
Graphene and CNT are into raw material for standby；
Step C：Granulation is dried in above-mentioned raw materials, and compressing is that raw embryo is standby；
Step D：Above-mentioned raw embryo is formed by a firing as hard alloy.
A kind of mining instrument hard alloy and preparation method thereof, including tungsten carbide hard phase 80-97 parts, 2-8 parts bonding phase,
1-2 parts additive and 1-2 part forming agents, specific preparation method are as follows：
Step A：Mix tungsten carbide hard phase, bonding and mutually and after additive add forming agent by alcohol progress wet-milling, in wet-milling
Middle add quantifies forming agent, standby after wet-milling resulting mixture；
Step B：Said mixture is added into additive ball milling 6-48 hours, the addition of ball milling later stage is by ultrasonic disperse in alcohol
Graphene and CNT into raw material for standby；
Step C：Granulation is dried in above-mentioned raw materials, and compressing is that raw embryo is standby；
Step D：Above-mentioned raw embryo is formed by a firing as hard alloy.
Further, the crystallite dimension of the hard phase is 3-25 microns.
Further, the bonding is mutually prepared for cobalt or the bonding is mutually prepared using the mixture of cobalt and nickel；According to
Bonding phase prepared by cobalt and nickel, the nickel quality in the bonding phase, which is up to, is bonded 50 the percent of phase quality.
Further, the additive includes grain inhibitor, graphene and CNT, and the additive quality is at most
For 8 the percent of the bonding agent quality, the grain inhibitor includes Cr, V, Ta, Nb, Ti, Zr, Hf, one kind in Mo or
A variety of grain inhibitor elements.
Further, the sintering procedure of the step D is：Degreasing at 800 DEG C -900 DEG C, 1360 DEG C ~ 1480 DEG C high temperature burn
Knot, Ar qi leels pressure keeps 50 ~ 200MPa in stove during high temperature sintering, and soaking time was controlled at 0.5 ~ 2 hour.
Present invention contrast prior art can realize following beneficial effect：It is an object of the invention to provide a kind of mining hard
Alloy, the synthesis hardness and toughness of hard alloy can be effectively improved by adding graphene and CNT, it is red hard to improve its
Property and wear resistance.Rock machining life tools 30% can be improved by optimizing the hard alloy after improving.
Embodiment
The technical solution adopted for the present invention to solve the technical problems is：Alloy include 80 ~ 97wt% weight than tungsten carbide
Hard phase, crystallite dimension are 3 ~ 25 microns.Alloy remaining ingredient is mutually made up of bonding with addition element.Wherein bonding can be mutually
Cobalt, or cobalt and nickel composition, nickel content highest account for the 50% of bonding phase.Additive includes grain inhibitor, graphene and carbon nanometer
Pipe, content highest can account for the 8% of Binder Phase.
The method for preparing mine hard alloy comprises the following steps：
Raw material：
WC powder：The WC powder of Monosized powder.
Binder Phase：The Co powder of Monosized powder, or the combination of the Co powder of Monosized powder and Ni powder.
Forming agent：Paraffin, polyethylene glycol.
Grain inhibitor includes Cr, V, Ta, Nb, Ti, Zr, Hf, one or more grain inhibitor elements in Mo.
Additive：Graphene and CNT
It is prepared by compound：According to WC account for gross weight than 80 ~ 97wt%, addition element accounts for residuals weight highest 8%, and proportioning is viscous
Knot phase powder adds alcohol or water Wet blend-milling.It is total to account for WC, binding agent, addition element and forming agent for incorporation before wet-milling and in graphite
Measure the forming agent for 1 ~ 2wt%.
The above-mentioned raw material worked good is subjected to ball milling, Ball-milling Time is 6 ~ 48 hours.
Graphene and CNT of the ultrasonic disperse in alcohol or water are passed through in the addition of ball milling later stage.
Granulation is dried in raw material after ball milling, and compressing is raw embryo.
Raw embryo after compacting is fired into hard alloy in sintering furnace, and wherein sintering process includes：Taken off at 800 DEG C -900 DEG C
Fat, 1360 DEG C ~ 1480 DEG C high temperature sinterings, Ar qi leels pressure keeps 50 ~ 200MPa in stove during high temperature sintering, and soaking time control exists
0.5 ~ 2 hour.
Claims (8)
1. a kind of mining instrument hard alloy and preparation method thereof, it is characterised in that including tungsten carbide hard phase 80-97 parts, 2-8
Part bonding phase, 1-2 parts additive and 1-2 part forming agents, specific preparation method are as follows：
Step A：Mix tungsten carbide hard phase, bonding and mutually and after additive add forming agent by water progress wet-milling, in wet-milling
Add and quantify forming agent, it is standby after wet-milling resulting mixture；
Step B：Said mixture is added into additive ball milling 6-48 hours, the addition of ball milling later stage is by ultrasonic disperse in water
Graphene and CNT are into raw material for standby；
Step C：Granulation is dried in above-mentioned raw materials, and compressing is that raw embryo is standby；
Step D：Above-mentioned raw embryo is formed by a firing as hard alloy.
2. a kind of mining instrument hard alloy and preparation method thereof, it is characterised in that including tungsten carbide hard phase 80-97 parts, 2-8
Part bonding phase, 1-2 parts additive and 1-2 part forming agents, specific preparation method are as follows：
Step A：Mix tungsten carbide hard phase, bonding and mutually and after additive add forming agent by alcohol progress wet-milling, in wet-milling
Middle add quantifies forming agent, standby after wet-milling resulting mixture；
Step B：Said mixture is added into additive ball milling 6-48 hours, the addition of ball milling later stage is by ultrasonic disperse in alcohol
Graphene and CNT into raw material for standby；
Step C：Granulation is dried in above-mentioned raw materials, and compressing is that raw embryo is standby；
Step D：Above-mentioned raw embryo is formed by a firing as hard alloy.
A kind of 3. mining instrument hard alloy according to claim 1 or 2 and preparation method thereof, it is characterised in that the hard
The crystallite dimension of phase is 3-25 microns.
A kind of 4. mining instrument hard alloy according to claim 1 or 2 and preparation method thereof, it is characterised in that the bonding
Mutually prepared for cobalt or the bonding is mutually prepared using the mixture of cobalt and nickel；The bonding phase prepared according to cobalt and nickel, the bonding
Nickel quality in phase, which is up to, is bonded 50 the percent of phase quality.
A kind of 5. mining instrument hard alloy according to claim 1 or 2 and preparation method thereof, it is characterised in that the addition
Agent includes grain inhibitor, graphene and CNT, and the additive quality is at most the percent of the bonding agent quality
Eight, the grain inhibitor includes Cr, V, Ta, Nb, Ti, Zr, Hf, one or more grain inhibitor elements in Mo.
A kind of 6. mining instrument hard alloy according to claim 1 or 2 and preparation method thereof, it is characterised in that the step D
Sintering procedure be：Degreasing at 800 DEG C -900 DEG C, 1360 DEG C ~ 1480 DEG C high temperature sinterings, Ar qi leels pressure is protected in stove during high temperature sintering
50 ~ 200MPa is held, soaking time was controlled at 0.5 ~ 2 hour.
A kind of 7. mining instrument hard alloy according to claim 1 or 2 and preparation method thereof, it is characterised in that the shaping
Agent is prepared using paraffin and polyethylene glycol.
A kind of 8. mining instrument hard alloy according to claim 1 or 2 and preparation method thereof, it is characterised in that the carbonization
Tungsten hard phase is the tungsten carbide hard phase of Monosized powder.
Priority Applications (1)
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| CN201710547044.XA CN107447154A (en) | 2017-07-06 | 2017-07-06 | A kind of mining instrument hard alloy and preparation method thereof |
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| CN201710547044.XA CN107447154A (en) | 2017-07-06 | 2017-07-06 | A kind of mining instrument hard alloy and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136714A (en) * | 2018-11-14 | 2019-01-04 | 江苏万达新能源科技股份有限公司 | A kind of cemented carbide material for lithium battery cutting machine |
| CN109365823A (en) * | 2018-10-25 | 2019-02-22 | 上海材料研究所 | A kind of whole hard alloy hobboing cutter and its manufacturing process |
| CN110527889A (en) * | 2019-09-05 | 2019-12-03 | 成都精蓉创科技有限公司 | A kind of material and its preparation process welding chopper for producing deep chamber |
| CN110527891A (en) * | 2019-09-16 | 2019-12-03 | 东华大学 | Hard alloy in low cobalt surface diamond coating and preparation method thereof |
| CN111056852A (en) * | 2019-12-19 | 2020-04-24 | 西安交通大学 | Binding phase-free WC-based hard alloy cutter material and preparation method thereof |
| CN109280790B (en) * | 2018-08-30 | 2020-04-28 | 晋城鸿刃科技有限公司 | Carbon supplementing method for hard alloy pre-sintering semi-finished product |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0598384A (en) * | 1991-10-08 | 1993-04-20 | Mitsubishi Materials Corp | Tungsten carbide base sintered hard alloy having high strength and high hardness |
| JP2004052110A (en) * | 2002-07-17 | 2004-02-19 | Hitachi Tool Engineering Ltd | Hyper-fine grained cemented carbide |
| JP2006257467A (en) * | 2005-03-15 | 2006-09-28 | Yamagata Promotional Organization For Industrial Technology | Hard metal material for tool and manufacturing method therefor |
| CN102443714A (en) * | 2010-10-09 | 2012-05-09 | 成都名钨科技有限责任公司 | Preparation method for superfine hard alloy |
| JP2013040396A (en) * | 2011-08-19 | 2013-02-28 | Seiko Epson Corp | Cemented carbide and method of manufacturing the same |
| CN103014471A (en) * | 2012-10-31 | 2013-04-03 | 株洲科锐硬质合金有限公司 | Hard alloy raw material, mining tool hard alloy and preparation method of mining tool hard alloy |
| CN103042257A (en) * | 2013-01-17 | 2013-04-17 | 河南省大地合金股份有限公司 | Micro drill for printed circuit board (PCB) and preparation method thereof |
| US20140178139A1 (en) * | 2012-12-21 | 2014-06-26 | Korea Institute Of Machinery And Materials | Method of manufacturing super hard alloy containing carbon nanotubes, super hard alloy manufactured using same, and cutting tool comprising super hard alloy |
| CN104451322A (en) * | 2014-11-25 | 2015-03-25 | 广东工业大学 | Tungsten carbide-based hard alloy and preparation method thereof |
-
2017
- 2017-07-06 CN CN201710547044.XA patent/CN107447154A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0598384A (en) * | 1991-10-08 | 1993-04-20 | Mitsubishi Materials Corp | Tungsten carbide base sintered hard alloy having high strength and high hardness |
| JP2004052110A (en) * | 2002-07-17 | 2004-02-19 | Hitachi Tool Engineering Ltd | Hyper-fine grained cemented carbide |
| JP2006257467A (en) * | 2005-03-15 | 2006-09-28 | Yamagata Promotional Organization For Industrial Technology | Hard metal material for tool and manufacturing method therefor |
| CN102443714A (en) * | 2010-10-09 | 2012-05-09 | 成都名钨科技有限责任公司 | Preparation method for superfine hard alloy |
| JP2013040396A (en) * | 2011-08-19 | 2013-02-28 | Seiko Epson Corp | Cemented carbide and method of manufacturing the same |
| CN103014471A (en) * | 2012-10-31 | 2013-04-03 | 株洲科锐硬质合金有限公司 | Hard alloy raw material, mining tool hard alloy and preparation method of mining tool hard alloy |
| US20140178139A1 (en) * | 2012-12-21 | 2014-06-26 | Korea Institute Of Machinery And Materials | Method of manufacturing super hard alloy containing carbon nanotubes, super hard alloy manufactured using same, and cutting tool comprising super hard alloy |
| CN103042257A (en) * | 2013-01-17 | 2013-04-17 | 河南省大地合金股份有限公司 | Micro drill for printed circuit board (PCB) and preparation method thereof |
| CN104451322A (en) * | 2014-11-25 | 2015-03-25 | 广东工业大学 | Tungsten carbide-based hard alloy and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 岳立福，等: "碳纳米管对硬质合金WC晶粒及强度的影响", 《功能材料》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280790B (en) * | 2018-08-30 | 2020-04-28 | 晋城鸿刃科技有限公司 | Carbon supplementing method for hard alloy pre-sintering semi-finished product |
| CN109365823A (en) * | 2018-10-25 | 2019-02-22 | 上海材料研究所 | A kind of whole hard alloy hobboing cutter and its manufacturing process |
| CN109136714A (en) * | 2018-11-14 | 2019-01-04 | 江苏万达新能源科技股份有限公司 | A kind of cemented carbide material for lithium battery cutting machine |
| CN110527889A (en) * | 2019-09-05 | 2019-12-03 | 成都精蓉创科技有限公司 | A kind of material and its preparation process welding chopper for producing deep chamber |
| CN110527889B (en) * | 2019-09-05 | 2021-11-23 | 无锡精蓉创材料科技有限公司 | Material for producing deep cavity welding cleaver and preparation process thereof |
| CN110527891A (en) * | 2019-09-16 | 2019-12-03 | 东华大学 | Hard alloy in low cobalt surface diamond coating and preparation method thereof |
| CN110527891B (en) * | 2019-09-16 | 2021-11-02 | 东华大学 | Low-cobalt hard alloy surface diamond coating and preparation method thereof |
| CN111056852A (en) * | 2019-12-19 | 2020-04-24 | 西安交通大学 | Binding phase-free WC-based hard alloy cutter material and preparation method thereof |
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Application publication date: 20171208 |