CN101381834A - Double crystal corrosion resistant cemented carbide material and manufacturing method thereof - Google Patents
Double crystal corrosion resistant cemented carbide material and manufacturing method thereof Download PDFInfo
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- CN101381834A CN101381834A CNA2008101433847A CN200810143384A CN101381834A CN 101381834 A CN101381834 A CN 101381834A CN A2008101433847 A CNA2008101433847 A CN A2008101433847A CN 200810143384 A CN200810143384 A CN 200810143384A CN 101381834 A CN101381834 A CN 101381834A
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Abstract
The invention discloses a twinned crystal corrosion-resistant hard alloy material and a method for manufacturing the same. The main compositions of the alloy material are WC composite hard phase, Co as binder metal, Cr as the microelement to resist corrosion and prevent the growth of grain, and the mass percentage compositions are: 20 to 32 percent of 0.8-2u of tungsten carbide powder, 48 to 60 percent of 2-4u tungsten carbide powder, 0.5 to 1 percent of chrome carbide powder, and 12 to 20 percent of cobalt powder. The manufacturing method comprises the steps of ball milling the powder at the matching ratios in alcohol and hexane protection mediums to obtain hard allay mixing material, then pressing the powder into be blanks, and finally sintering the blanks in a sintering furnace under the conditions at a temperature of between 1380 and 1420 DEG C for heat preservation for 40 to 80 minutes. The twinned crystal corrosion-resistant hard alloy material has wear-resistance, impact-resistance and stable quality, and the manufacturing method is simple and reliable.
Description
Technical field
The present invention relates to a kind of Hardmetal materials, particularly relate to a kind of double crystal corrosion resistant cemented carbide material, the invention still further relates to the manufacture method of this double crystal corrosion resistant cemented carbide material.
Background technology
At present, the main trade mark of Wimet sheet material is YG15, YG20 etc., such trade mark in process of production, all adopt the WC powder production of single specification, the shortcoming of single powder is doublely to make this material possess the characteristics of high strength and high hardness simultaneously, promptly can not make product possess wear-resisting impact-resistant again characteristics simultaneously; And bonding component only is a kind of element of cobalt, but the oxidation-resistance of cobalt and corrosion resistance are relatively poor, causes occurring easily in online cutting of sheet material and the electrospark machining defectives such as corrosion and crackle; Simultaneously, at high temperature, WC grain is dissolved in the liquid phase cobalt, causes WC grain to be grown up unusually easily.Along with the expansion of Wimet sheet material use range, with and in various environmental applications, traditional Wimet can not adapt to Working environment complicated and changeable day by day.
Summary of the invention
Technical problem to be solved by this invention provides a kind of wear-resisting shock-resistant again and stay-in-grade double crystal corrosion resistant cemented carbide material that possesses simultaneously.
Second technical problem to be solved by this invention provides the manufacture method of this double crystal corrosion resistant cemented carbide material.
In order to solve the problems of the technologies described above, double crystal corrosion resistant cemented carbide material provided by the invention, by main component is that WC composite ganoine phase, Co form with preventing the trace element of grain growth as corrosion-resistant as matrix metal, Cr, and each composition quality percentage composition is:
0.8-2u tungsten carbide powder 20-32%,
2-4u tungsten carbide powder 48-60%,
Carbonization chromium powder 0.5-1%,
Cobalt powder 12-20%.
Its manufacture method is: above-mentioned powder is carried out ball milling by proportioning, to obtain compound then is pressed into blank and carries out vacuum or pressure sintering, the sintering problem is 1380-1420 ℃, is incubated 40-80 minute, promptly obtains the double crystal corrosion resistant cemented carbide material among the present invention.
Adopt the double crystal corrosion resistant cemented carbide material of technique scheme, by adopting existing CEMENTED CARBIDE PRODUCTION method, by adjusting the crystal grain collocation of WC, make the ratio of small size WC and large size WC reach best arranging effect, this arranging effect is different because the granular size of original WC and ratio are different.And suppress in the sintering process WC grain and grow up unusually by adding Cr3C2, simultaneously, the Cr3C2 powder of adding is uniformly distributed in the alloy material, can make this material possess corrosion resistant characteristics.
In sum, the present invention is a kind of wear-resisting shock-resistant again and stay-in-grade double crystal corrosion resistant cemented carbide material that possesses simultaneously, and its manufacture method is simple and reliable.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1:
By main component is that WC composite ganoine phase, Co form with preventing the trace element of grain growth as corrosion-resistant as matrix metal, Cr, and each composition quality percentage composition is:
0.8-1.2u WC： 20％，
2.0-2.2u WC： 60％，
Cr3C2： 0.8％，
Co： 19.2％。
Above-mentioned powder is carried out ball milling by proportioning, will obtain compound then and be pressed into blank and carry out vacuum or pressure sintering, the sintering problem is 1380 ℃, is incubated 80 minutes, promptly obtains the double crystal corrosion resistant cemented carbide material among the present invention.
Embodiment 2:
By main component is that WC composite ganoine phase, Co form with preventing the trace element of grain growth as corrosion-resistant as matrix metal, Cr, and each composition quality percentage composition is:
1.8-2.0u WC： 26％，
2.8-3.2u WC： 58％，
Cr3C2： 0.5％，
Co： 15.5％。
Above-mentioned powder is carried out ball milling by proportioning, will obtain compound then and be pressed into blank and carry out vacuum or pressure sintering, the sintering problem is 1420 ℃, is incubated 40 minutes, promptly obtains the double crystal corrosion resistant cemented carbide material among the present invention.
Embodiment 3:
By main component is that WC composite ganoine phase, Co form with preventing the trace element of grain growth as corrosion-resistant as matrix metal, Cr, and each composition quality percentage composition is:
0.8-1.2u WC： 32％，
3.0-4.0u WC： 48％，
Cr3C2： 1.0％，
Co： 19.0％。
Above-mentioned powder is carried out ball milling by proportioning, will obtain compound then and be pressed into blank and carry out vacuum or pressure sintering, the sintering problem is 1400 ℃, is incubated 60 minutes, promptly obtains the double crystal corrosion resistant cemented carbide material among the present invention.
Embodiment 4:
By main component is that WC composite ganoine phase, Co form with preventing the trace element of grain growth as corrosion-resistant as matrix metal, Cr, and each composition quality percentage composition is:
1.5-2.0u WC： 32％，
2.5-3.6u WC： 55％，
Cr3C2： 1.0％，
Co： 12.0％。
Above-mentioned powder is carried out ball milling by proportioning, will obtain compound then and be pressed into blank and carry out vacuum or pressure sintering, the sintering problem is 1390 ℃, is incubated 70 minutes, promptly obtains the double crystal corrosion resistant cemented carbide material among the present invention.
Embodiment 5:
By main component is that WC composite ganoine phase, Co form with preventing the trace element of grain growth as corrosion-resistant as matrix metal, Cr, and each composition quality percentage composition is:
1.2-2.0u WC： 22％，
3.0-4.0u WC： 57％，
Cr3C2： 1.0％，
Co： 20.0％。
Above-mentioned powder is carried out ball milling by proportioning, will obtain compound then and be pressed into blank and carry out vacuum or pressure sintering, the sintering problem is 1410 ℃, is incubated 50 minutes, promptly obtains the double crystal corrosion resistant cemented carbide material among the present invention.
Claims (2)
1, a kind of double crystal corrosion resistant cemented carbide material is that WC composite ganoine phase, Co form with preventing the trace element of grain growth as corrosion-resistant as matrix metal, Cr by main component, and it is characterized in that: each composition quality percentage composition is:
8-2u tungsten carbide powder 20-32%,
2-4u tungsten carbide powder 48-60%,
Carbonization chromium powder 0.5-1%,
Cobalt powder 12-20%.
2, make the method for the described double crystal corrosion resistant cemented carbide material of claim 1; it is characterized in that: at first powder is carried out ball milling by proportioning in alcohol, hexane protective medium; obtain carbide alloy mixture; then powder compression is become blank; at last blank is placed on sintering oven in 1380-1420, carries out sintering under the condition that is incubated 40-80 minute and get final product.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101433847A CN101381834A (en) | 2008-10-21 | 2008-10-21 | Double crystal corrosion resistant cemented carbide material and manufacturing method thereof |
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| CNA2008101433847A CN101381834A (en) | 2008-10-21 | 2008-10-21 | Double crystal corrosion resistant cemented carbide material and manufacturing method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051514A (en) * | 2011-01-07 | 2011-05-11 | 浙江恒成硬质合金有限公司 | Material formula of hard alloy roll collar for rolling cold forging steel |
| CN102071347A (en) * | 2011-01-26 | 2011-05-25 | 株洲力洲硬质合金有限公司 | Method for preparing hard alloy materials |
| CN102151834A (en) * | 2011-03-08 | 2011-08-17 | 深圳市格林美高新技术股份有限公司 | Al2O3-cobalt-based adhesive phase-containing ultrafine hard alloy powder and preparation method and use thereof |
| CN102747242A (en) * | 2012-07-26 | 2012-10-24 | 株洲金鼎硬质合金有限公司 | Method for preparing large-size hard alloy |
| CN106048361A (en) * | 2016-08-22 | 2016-10-26 | 九江金鹭硬质合金有限公司 | Motor-grade progressive die hard alloy mold material and preparation method thereof |
| CN106702248A (en) * | 2016-11-30 | 2017-05-24 | 株洲力洲硬质合金有限公司 | Anti-corrosion anti-EDM-processing-cracking mixed crystal cemented carbide and manufacturing method |
| CN107267836A (en) * | 2017-06-07 | 2017-10-20 | 横店集团东磁股份有限公司 | A kind of twin crystal hard alloy and preparation method thereof |
| CN107312962A (en) * | 2017-06-29 | 2017-11-03 | 东莞杰宇机械有限公司 | A kind of bimetallic alloy machine barrel material and its production technology |
| CN108203785A (en) * | 2018-01-10 | 2018-06-26 | 株洲科锐硬质合金股份有限公司 | A kind of heterogeneous texture electro-discharge machining hard alloy plate and preparation method thereof |
-
2008
- 2008-10-21 CN CNA2008101433847A patent/CN101381834A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051514A (en) * | 2011-01-07 | 2011-05-11 | 浙江恒成硬质合金有限公司 | Material formula of hard alloy roll collar for rolling cold forging steel |
| CN102071347A (en) * | 2011-01-26 | 2011-05-25 | 株洲力洲硬质合金有限公司 | Method for preparing hard alloy materials |
| CN102151834A (en) * | 2011-03-08 | 2011-08-17 | 深圳市格林美高新技术股份有限公司 | Al2O3-cobalt-based adhesive phase-containing ultrafine hard alloy powder and preparation method and use thereof |
| CN102151834B (en) * | 2011-03-08 | 2012-12-26 | 深圳市格林美高新技术股份有限公司 | Al2O3-cobalt-based adhesive phase-containing ultrafine hard alloy powder and preparation method and use thereof |
| CN102747242A (en) * | 2012-07-26 | 2012-10-24 | 株洲金鼎硬质合金有限公司 | Method for preparing large-size hard alloy |
| CN106048361A (en) * | 2016-08-22 | 2016-10-26 | 九江金鹭硬质合金有限公司 | Motor-grade progressive die hard alloy mold material and preparation method thereof |
| CN106702248A (en) * | 2016-11-30 | 2017-05-24 | 株洲力洲硬质合金有限公司 | Anti-corrosion anti-EDM-processing-cracking mixed crystal cemented carbide and manufacturing method |
| CN106702248B (en) * | 2016-11-30 | 2018-01-09 | 株洲力洲硬质合金有限公司 | The mixed crystal hard alloy and manufacture method of corrosion-resistant anti-EDM processing cracking |
| CN107267836A (en) * | 2017-06-07 | 2017-10-20 | 横店集团东磁股份有限公司 | A kind of twin crystal hard alloy and preparation method thereof |
| CN107312962A (en) * | 2017-06-29 | 2017-11-03 | 东莞杰宇机械有限公司 | A kind of bimetallic alloy machine barrel material and its production technology |
| CN108203785A (en) * | 2018-01-10 | 2018-06-26 | 株洲科锐硬质合金股份有限公司 | A kind of heterogeneous texture electro-discharge machining hard alloy plate and preparation method thereof |
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