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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- 239000000956 alloy Substances 0.000 title claims abstract description 32
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000005065 mining Methods 0.000 title claims abstract description 14
- 239000000654 additive Substances 0.000 claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 230000000996 additive effect Effects 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 238000001238 wet grinding Methods 0.000 claims abstract description 13
- 238000000498 ball milling Methods 0.000 claims abstract description 12
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 11
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 210000001161 mammalian embryo Anatomy 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005469 granulation Methods 0.000 claims abstract description 5
- 230000003179 granulation Effects 0.000 claims abstract description 5
- 238000010304 firing Methods 0.000 claims abstract 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 10
- 239000003112 inhibitor Substances 0.000 claims description 9
- 238000005245 sintering Methods 0.000 claims description 9
- 229910017052 cobalt Inorganic materials 0.000 claims description 5
- 239000010941 cobalt Substances 0.000 claims description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- 239000007767 bonding agent Substances 0.000 claims description 2
- 238000005238 degreasing Methods 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 238000003763 carbonization Methods 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims 1
- 229910052721 tungsten Inorganic materials 0.000 claims 1
- 239000010937 tungsten Substances 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 4
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 239000011230 binding agent Substances 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910009043 WC-Co Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- 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 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)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| CN107447154A true CN107447154A (en) | 2017-12-08 |
Family
ID=60488293
Family Applications (1)
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|---|---|---|---|
| CN201710547044.XA Pending CN107447154A (en) | 2017-07-06 | 2017-07-06 | A kind of mining instrument hard alloy and preparation method thereof |
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| CN (1) | CN107447154A (en) |
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 solid carbide hob and its manufacturing process |
| CN110527891A (en) * | 2019-09-16 | 2019-12-03 | 东华大学 | Hard alloy in low cobalt surface diamond coating and preparation method thereof |
| 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 |
| CN111056852A (en) * | 2019-12-19 | 2020-04-24 | 西安交通大学 | A kind of non-binder phase WC-based cemented carbide cutting tool 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 |
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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 solid carbide hob 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 | Diamond coating on the surface of low cobalt cemented carbide and preparation method thereof |
| CN111056852A (en) * | 2019-12-19 | 2020-04-24 | 西安交通大学 | A kind of non-binder phase WC-based cemented carbide cutting tool material and preparation method thereof |
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Application publication date: 20171208 |