CN102418022A - Hard alloy material for ore - Google Patents
Hard alloy material for ore Download PDFInfo
- Publication number
- CN102418022A CN102418022A CN2011103346417A CN201110334641A CN102418022A CN 102418022 A CN102418022 A CN 102418022A CN 2011103346417 A CN2011103346417 A CN 2011103346417A CN 201110334641 A CN201110334641 A CN 201110334641A CN 102418022 A CN102418022 A CN 102418022A
- Authority
- CN
- China
- Prior art keywords
- cobalt
- wolfram varbide
- hard alloy
- alloy material
- granularity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
The invention relates to a hard alloy material for ore. The hard alloy material comprises, by weight, 7.63-10.3% of Co, tungsten carbide with the single crystal granularity of 8-18mum, and accessories. So the service life of the alloy material for hard ore is prolonged.
Description
One, technical field
The present invention relates to a kind of mine hard alloy material, especially a kind of mine hard alloy material that is applicable in large-scale coalcutter and the development machine hard rock.
Two, background technology
Coalcutter and development machine are important production units in the colliery; In the worn parts in coalcutter and development machine; Like various mining picks and cutter; All be to use the mine hard alloy material, so the mine hard alloy material is a kind of important starting material, in existing mine hard alloy material; Mainly higher, temperature tolerance by hardness preferably wolfram varbide and temperature tolerance preferably behind the sticker cobalt uniform mixing sintering form, make wimet have preferably characteristics such as heatproof, wear-resisting and impelling strength.But along with the application in hard rock of mining mechanization, highway machineryization and rock drilling machineryization, be to improve impelling strength, mostly adopting increases the general weight content of cobalt contents greater than 11% method, improves shock resistance, solves the application in hard rock; But the existence of high-content cobalt makes the wear resistance of wimet descend the lost of life again.
Three, summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of this invention is to provide a kind of mine hard alloy material, therefore prolonged the work-ing life of the alloy body of hard rock use.
For achieving the above object, the technical scheme that mine hard alloy material of the present invention is taked is: according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 7.63%-10.3%, monocrystalline granularity 8-18um.
The mine hard alloy material; Form alloy body through sintering processing; Because designed the wolfram varbide that alloy material includes cobalt 7.63%-10.3% and monocrystalline granularity 8-18um, wolfram varbide guaranteed the heatproof and the attrition resistant performance of alloy body, cobalt has guaranteed the performance of the impelling strength of alloy body; Satisfy the requirement of in hard rock, using alloy body, therefore prolonged the work-ing life of the alloy body of hard rock use.
The present invention has designed, a kind of mine hard alloy material, and according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 7.66%-10.3%, monocrystalline granularity 8-18um.
The present invention has designed, a kind of mine hard alloy material, and according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 7.9%-10.1%, monocrystalline granularity 8-18um.
The present invention has designed, a kind of mine hard alloy material, and according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 8.5%-9.85%, monocrystalline granularity 8-18um.
The present invention has designed, and a kind of wimet according to weight ratio, includes wolfram varbide and the auxiliary material of cobalt 7.63%-10.3%, monocrystalline granularity 8-18um, and its crystal grain mean particle size is 6-13um.
Four, embodiment
Among first embodiment of mine hard alloy material of the present invention, according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 7.63%, monocrystalline granularity 8um.
Mine hard alloy preparation methods of the present invention:
1, compound preparation
The wolfram varbide of granularity greater than 35um, through the mode of grinding, the monocrystalline granularity that makes wolfram varbide is 8um, mixes cobalt powder, tungsten-carbide powder and the auxiliary material part by weight according to wolfram varbide that includes cobalt 7.63%, monocrystalline granularity 8um and auxiliary material again.
2, compression moulding
According to Different products, be pressed into the shape of product to compound, form product blank.
3, vacuum sintering
Put into the blank of the product of compression moulding in the vacuum oven, keep the temperature of vacuum oven to be 1400-1500 ℃ of sintering and to be incubated, cooling is come out of the stove then.
A kind of wimet through the hart metal product of method for preparing, is observed down through metaloscope, and its crystal grain mean particle size is 6um.
In the present embodiment, the Specifeca tion speeification of the wimet of formation is:
D(g\cm
3):14.61-14.65。
Hardness HV3:1800.
Hardness HRA:94.5.
TRS(N/mm
2):3900。
Among second embodiment of mine hard alloy material of the present invention, according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 10.3%, monocrystalline granularity 18um.
Mine hard alloy preparation methods of the present invention:
1, compound preparation
The wolfram varbide of granularity greater than 35um, through the mode of grinding, the monocrystalline granularity that makes wolfram varbide is 18um, mixes cobalt powder, tungsten-carbide powder and the auxiliary material part by weight according to wolfram varbide that includes cobalt 10.3%, monocrystalline granularity 18um and auxiliary material again.
2, compression moulding
According to Different products, be pressed into the shape of product to compound, form product blank.
3, vacuum sintering
Put into the blank of the product of compression moulding in the vacuum oven, keep the temperature of vacuum oven to be 1400-1500 ℃ of sintering and to be incubated, cooling is come out of the stove then.
A kind of wimet through the hart metal product of method for preparing, is observed down through metaloscope, and its crystal grain mean particle size is 13um.
Among the 3rd embodiment of mine hard alloy material of the present invention, according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 8.5%, monocrystalline granularity 13um.
Mine hard alloy preparation methods of the present invention:
1, compound preparation
The wolfram varbide of granularity greater than 35um, through the mode of grinding, the monocrystalline granularity that makes wolfram varbide is 13um, mixes cobalt powder, tungsten-carbide powder and the auxiliary material part by weight according to wolfram varbide that includes cobalt 8.5%, monocrystalline granularity 13um and auxiliary material again.
2, compression moulding
According to Different products, be pressed into the shape of product to compound, form product blank.
3, vacuum sintering
Put into the blank of the product of compression moulding in the vacuum oven, keep the temperature of vacuum oven to be 1400-1500 ℃ of sintering and to be incubated, cooling is come out of the stove then.
A kind of wimet through the hart metal product of method for preparing, is observed down through metaloscope, and its crystal grain mean particle size is 9um.
Among the 4th embodiment of mine hard alloy material of the present invention, according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 7.66%, monocrystalline granularity 9um.
Mine hard alloy preparation methods of the present invention:
1, compound preparation
The wolfram varbide of granularity greater than 35um, through the mode of grinding, the monocrystalline granularity that makes wolfram varbide is 9um, mixes cobalt powder, tungsten-carbide powder and the auxiliary material part by weight according to wolfram varbide that includes cobalt 7.66%, monocrystalline granularity 9um and auxiliary material again.
2, compression moulding
According to Different products, be pressed into the shape of product to compound, form product blank.
3, vacuum sintering
Put into the blank of the product of compression moulding in the vacuum oven, keep the temperature of vacuum oven to be 1400-1500 ℃ of sintering and to be incubated, cooling is come out of the stove then.
A kind of wimet through the hart metal product of method for preparing, is observed down through metaloscope, and its crystal grain mean particle size is 8um.
Among the 5th embodiment of mine hard alloy material of the present invention, according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 7.9%, monocrystalline granularity 10um.
Mine hard alloy preparation methods of the present invention:
1, compound preparation
The wolfram varbide of granularity greater than 35um, through the mode of grinding, the monocrystalline granularity that makes wolfram varbide is 10um, mixes cobalt powder, tungsten-carbide powder and the auxiliary material part by weight according to wolfram varbide that includes cobalt 7.9%, monocrystalline granularity 10um and auxiliary material again.
2, compression moulding
According to Different products, be pressed into the shape of product to compound, form product blank.
3, vacuum sintering
Put into the blank of the product of compression moulding in the vacuum oven, keep the temperature of vacuum oven to be 1400-1500 ℃ of sintering and to be incubated, cooling is come out of the stove then.
A kind of wimet through the hart metal product of method for preparing, is observed down through metaloscope, and its crystal grain mean particle size is 11um.
Among the 6th embodiment of mine hard alloy material of the present invention, according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 10.1%, monocrystalline granularity 17um.
Mine hard alloy preparation methods of the present invention:
1, compound preparation
The wolfram varbide of granularity greater than 35um, through the mode of grinding, the monocrystalline granularity that makes wolfram varbide is 17um, mixes cobalt powder, tungsten-carbide powder and the auxiliary material part by weight according to wolfram varbide that includes cobalt 10.1%, monocrystalline granularity 17um and auxiliary material again.
2, compression moulding
According to Different products, be pressed into the shape of product to compound, form product blank.
3, vacuum sintering
Put into the blank of the product of compression moulding in the vacuum oven, keep the temperature of vacuum oven to be 1400-1500 ℃ of sintering and to be incubated, cooling is come out of the stove then.
A kind of wimet through the hart metal product of method for preparing, is observed down through metaloscope, and its crystal grain mean particle size is 10um.
Among the 7th embodiment of mine hard alloy material of the present invention, according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 9.85%, monocrystalline granularity 8um.
Mine hard alloy preparation methods of the present invention:
1, compound preparation
The wolfram varbide of granularity greater than 35um, through the mode of grinding, the monocrystalline granularity that makes wolfram varbide is 8um, mixes cobalt powder, tungsten-carbide powder and the auxiliary material part by weight according to wolfram varbide that includes cobalt 9.85%, monocrystalline granularity 8um and auxiliary material again.
2, compression moulding
According to Different products, be pressed into the shape of product to compound, form product blank.
3, vacuum sintering
Put into the blank of the product of compression moulding in the vacuum oven, keep the temperature of vacuum oven to be 1400-1500 ℃ of sintering and to be incubated, cooling is come out of the stove then.
A kind of wimet through the hart metal product of method for preparing, is observed down through metaloscope, and its crystal grain mean particle size is 6um.
Among the 8th embodiment of mine hard alloy material of the present invention, according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 9.55%, monocrystalline granularity 11um.
Mine hard alloy preparation methods of the present invention:
1, compound preparation
The wolfram varbide of granularity greater than 35um, through the mode of grinding, the monocrystalline granularity that makes wolfram varbide is 11um, mixes cobalt powder, tungsten-carbide powder and the auxiliary material part by weight according to wolfram varbide that includes cobalt 9.55%, monocrystalline granularity 11um and auxiliary material again.
2, compression moulding
According to Different products, be pressed into the shape of product to compound, form product blank.
3, vacuum sintering
Put into the blank of the product of compression moulding in the vacuum oven, keep the temperature of vacuum oven to be 1400-1500 ℃ of sintering and to be incubated, cooling is come out of the stove then.
A kind of wimet through the hart metal product of method for preparing, is observed down through metaloscope, and its crystal grain mean particle size is 8um.
Among the 9th embodiment of mine hard alloy material of the present invention, according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 9.13%, monocrystalline granularity 9um.
Mine hard alloy preparation methods of the present invention:
1, compound preparation
The wolfram varbide of granularity greater than 35um, through the mode of grinding, the monocrystalline granularity that makes wolfram varbide is 9um, mixes cobalt powder, tungsten-carbide powder and the auxiliary material part by weight according to wolfram varbide that includes cobalt 9.13%, monocrystalline granularity 9um and auxiliary material again.
2, compression moulding
According to Different products, be pressed into the shape of product to compound, form product blank.
3, vacuum sintering
Put into the blank of the product of compression moulding in the vacuum oven, keep the temperature of vacuum oven to be 1400-1500 ℃ of sintering and to be incubated, cooling is come out of the stove then.
A kind of wimet through the hart metal product of method for preparing, is observed down through metaloscope, and its crystal grain mean particle size is 7um.
Among the tenth embodiment of mine hard alloy material of the present invention, according to weight ratio, the mine hard alloy material includes wolfram varbide and the auxiliary material of cobalt 8.2%, monocrystalline granularity 10um.
Mine hard alloy preparation methods of the present invention:
1, compound preparation
The wolfram varbide of granularity greater than 35um, through the mode of grinding, the monocrystalline granularity that makes wolfram varbide is 10um, mixes cobalt powder, tungsten-carbide powder and the auxiliary material part by weight according to wolfram varbide that includes cobalt 8.2%, monocrystalline granularity 10um and auxiliary material again.
2, compression moulding
According to Different products, be pressed into the shape of product to compound, form product blank.
3, vacuum sintering
Put into the blank of the product of compression moulding in the vacuum oven, keep the temperature of vacuum oven to be 1400-1500 ℃ of sintering and to be incubated, cooling is come out of the stove then.
A kind of wimet through the hart metal product of method for preparing, is observed down through metaloscope, and its crystal grain mean particle size is 9um.
My company is the producer of a tame professional production mining pick, and in Coal Production, the pick of use requires high temperature resistant and wear-resistant; The colliery all is a soft formation generally, but in road construction, often runs into hard formation; And make mining machinery and highway machinery that very big difference arranged, in through technical scheme design of the present invention, through the sintering of mine with the pick alloy body; The visual appearance of finding moulding product improves a lot, and scrap rate has also reduced much simultaneously, and the sintering process that makes is simpler; Through the application of on-the-spot hard rock, effect is better, and wear resistance improves a lot.
The present invention has following characteristics:
1, owing to designed the wolfram varbide that alloy material includes cobalt 7.63%-10.3% and monocrystalline granularity 8-18um; Wolfram varbide has guaranteed the heatproof and the attrition resistant performance of alloy body; Cobalt has guaranteed the performance of the impelling strength of alloy body; Satisfy the requirement of in hard rock, using alloy body, therefore prolonged the work-ing life of the alloy body of hard rock use.
2, in the hard rock alloy; We adopt existing of home make the most slightly (wolfram varbide is that granularity is greater than 35um) single die of its wolfram varbide after fully grinding on average all is more than the 7um; Because the increase of wolfram varbide single die, though the cobalt amount has reduced, adhesive property remains unchanged.The reduction of cobalt contents has overcome the cobalt wear resisting property and has hanged down the defectives such as alloy be full of cracks that thermal stresses causes in the work of reaching; The wear resistance and the impelling strength of alloy have been improved simultaneously; Make alloy in the hard rock cut, become possibility, this kind alloy is when rock hardness f 9, and is better through on-the-spot result of use.
3, through experiment in the hard rock alloy, adopt cobalt contents be 7.63%-10.3%, wolfram varbide single die greater than 8um more than and other auxiliary materials; After thorough mixing grinds; In vacuum oven behind the sintering, under metaloscope, observe and the cobalt contents that forms at 7%-10.3%, average crystal grain hard rock alloy greater than 7um.
In the technical field of mine hard alloy material, every including according to weight ratio, the technology contents of wolfram varbide and auxiliary material that includes cobalt 7.63%-10.3%, monocrystalline granularity 8-18um is all in protection scope of the present invention.
Claims (5)
1. mine hard alloy material; It is characterized in that:, include wolfram varbide and the auxiliary material of cobalt 7.63%-10.3%, monocrystalline granularity 8-18um according to weight ratio.
2. mine hard alloy material according to claim 1; It is characterized in that:, include wolfram varbide and the auxiliary material of cobalt 7.66%-10.3%, monocrystalline granularity 8-18um according to weight ratio.
3. mine hard alloy material according to claim 2; It is characterized in that:, include wolfram varbide and the auxiliary material of cobalt 7.9%-10.1%, monocrystalline granularity 8-18um according to weight ratio.
4. mine hard alloy material according to claim 3; It is characterized in that:, include wolfram varbide and the auxiliary material of cobalt 8.5%-9.85%, monocrystalline granularity 8-18um according to weight ratio.
5. wimet, according to weight ratio: include wolfram varbide and the auxiliary material of cobalt 7.63%-10.3%, monocrystalline granularity 8-18um, its crystal grain mean particle size is 6-13um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103346417A CN102418022A (en) | 2011-10-31 | 2011-10-31 | Hard alloy material for ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103346417A CN102418022A (en) | 2011-10-31 | 2011-10-31 | Hard alloy material for ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102418022A true CN102418022A (en) | 2012-04-18 |
Family
ID=45942665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103346417A Pending CN102418022A (en) | 2011-10-31 | 2011-10-31 | Hard alloy material for ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102418022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032074A (en) * | 2012-12-11 | 2013-04-10 | 上海市机械施工有限公司 | Cutting tool for heading machine and manufacturing method thereof |
| CN105779843A (en) * | 2016-03-11 | 2016-07-20 | 中国神华能源股份有限公司 | Alloy composite body and manufacturing method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1375377A (en) * | 2002-04-23 | 2002-10-23 | 江汉石油钻头股份有限公司 | Wear-resistant tungsten carbide bead-welding material and welding rod |
| CN1544676A (en) * | 2003-11-18 | 2004-11-10 | 株洲硬质合金集团有限公司 | Process for preparing heterogeneous cemented carbide |
-
2011
- 2011-10-31 CN CN2011103346417A patent/CN102418022A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1375377A (en) * | 2002-04-23 | 2002-10-23 | 江汉石油钻头股份有限公司 | Wear-resistant tungsten carbide bead-welding material and welding rod |
| CN1544676A (en) * | 2003-11-18 | 2004-11-10 | 株洲硬质合金集团有限公司 | Process for preparing heterogeneous cemented carbide |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032074A (en) * | 2012-12-11 | 2013-04-10 | 上海市机械施工有限公司 | Cutting tool for heading machine and manufacturing method thereof |
| CN105779843A (en) * | 2016-03-11 | 2016-07-20 | 中国神华能源股份有限公司 | Alloy composite body and manufacturing method and application thereof |
| CN105779843B (en) * | 2016-03-11 | 2018-02-16 | 中国神华能源股份有限公司 | A kind of alloy complex and its manufacture method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102828696B (en) | Iron-based diamond-impregnated bit for drilling in hard slipping foundation | |
| CN101285146B (en) | Nonuniform cemented carbide for hot extruding hot die and method for preparing same | |
| US20190337123A1 (en) | Superhard constructions & methods of making same | |
| CN101985717B (en) | Method for preparing high-tenacity super-coarse-grained tungsten and cobalt hard alloy | |
| WO2011108959A3 (en) | Copper based binder for the fabrication of diamond tools | |
| CN101403067B (en) | Diamond drill bit carcass material suitable for weak-abrasiveness hard formation | |
| CN101338384A (en) | Method for preparing heterogeneous texture cemented carbide | |
| CN102796934B (en) | Shield machine cutter material and preparation method thereof | |
| CN102433485A (en) | Iron and nickel-based hard alloy cutter material and preparation method thereof | |
| CN105420581A (en) | Ceramic metal material | |
| CN103570019A (en) | Extra-coarse grain tungsten carbide powder with narrow particle size distribution and preparation method thereof | |
| CN105296834A (en) | High-hardness and high-tenacity hard alloy and preparation method thereof | |
| CN102418022A (en) | Hard alloy material for ore | |
| CN105715266A (en) | Mine hard alloy cutting pick | |
| CN201389999Y (en) | Enhancing diamond compact | |
| CN101876249B (en) | Preparation method of metal-ceramic coal cutting pick | |
| CN102744401B (en) | Geological mineral exploration device and preparation method thereof | |
| CN102321837B (en) | High-hardness composite material for cutter and preparation method | |
| CN103849789A (en) | Multielement coupled bionic remanufactured wear-resistant material for grinding roller, and preparation method thereof | |
| CN102899547A (en) | Manufacturing method of diamond wire saw bead cutting abrasive added with cubic boron nitride | |
| CN101181754B (en) | Method for preparing WC/MgO nano composite powder | |
| CN205613487U (en) | Be applied to broken rotor device on single rotor breaker | |
| CN103866173A (en) | Hard alloy material for cutting-teeth cutting head of coal cutter and preparation method of hard alloy material | |
| CN106319322A (en) | High wear-resistance alloy material and production method thereof | |
| CN204051785U (en) | A kind of sand machine thrower head processed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120418 |