CN105316505A - Manufacturing method for abrasion-resistant cemented carbide - Google Patents
Manufacturing method for abrasion-resistant cemented carbide Download PDFInfo
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- CN105316505A CN105316505A CN201510336382.XA CN201510336382A CN105316505A CN 105316505 A CN105316505 A CN 105316505A CN 201510336382 A CN201510336382 A CN 201510336382A CN 105316505 A CN105316505 A CN 105316505A
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Abstract
The invention relates to a manufacturing method for abrasion-resistant cemented carbide. The manufacturing method comprises the steps that a small amount of cubic boron nitride micro powder is added to powder of cemented carbide based on tungsten carbide; the mixed powder is evenly mixed with an organic binding agent together, and molding is conducted through an injection machine; after injection, a blank is degreased in an organic solvent; and the blank is put into a vacuum furnace to be sintered, and a finished product is obtained. According to the manufacturing method, the abrasive resistance of the cemented carbide product is improved. The stability and uniformity are high. The service life of the product is long.
Description
Technical field
The invention belongs to metal material field, particularly a kind of wearable hard alloy manufacture method.
Background technology
Injection molding technology is developed by macromolecular material injection molding technology, shaping to carry out by the feature of solidifying under high molecular polymer at high temperature melting, low temperature, base substrate after shaping removes high molecular polymer, can obtain the finished product after high temperature sintering.This method can produce the ceramic product of different shape complexity, and the even density of product, and geometric accuracy is high, is easy to mass-producing and automatic production.
Wimet has very high hardness, intensity, wear resistance and erosion resistance, be described as " industrial tooth ", for the manufacture of cutting tool, cutter and wear-resisting spare part, be widely used in the fields such as military project, space flight and aviation, mechanical workout, metallurgy, petroleum drilling, mine instrument, telecommunications, building.But the fastness to rubbing of existing Wimet can not meet the demand of production and application.
Summary of the invention
Object of the present invention is to provide a kind of wearable hard alloy manufacture method simple to operate newly, effectively can improve the wear resistance of hart metal product, extends the work-ing life of product.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of wearable hard alloy manufacture method that the present invention proposes, it comprises following steps:
1) in tungsten carbide base carbide alloy powder, a small amount of cubic boron nitride micro mist is added;
2) above-mentioned powder mix is evenly mixing together with organic binder bond, shaping through injector;
3) base substrate degreasing in organic solvent after injection;
4) enter vacuum oven sintering and obtain finished product.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid a kind of wearable hard alloy manufacture method, wherein said cubic boron nitride powder size is 1-10 micron, and add-on is the 3-15% of powder gross weight.
Aforesaid a kind of wearable hard alloy manufacture method, wherein said organic binder bond is wherein one or more the mixing of paraffin, high density polyethylene(HDPE), stearic acid, EVA resin.
Aforesaid a kind of wearable hard alloy manufacture method, wherein said organic solvent is one or both mixing in trieline, chloroform.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, the present invention can reach suitable technical progress and practicality, and has the extensive utility value in industry, and it at least has following advantages:
A kind of wearable hard alloy manufacture method of the present invention, working method is simple, effectively can improve the wear resistance of hart metal product, extends the work-ing life of product.
Embodiment
For further setting forth the present invention for the technique means reaching predetermined goal of the invention and take and effect, below in conjunction with preferred embodiment, to a kind of wearable hard alloy manufacture method its concrete grammar step, feature and effect thereof of proposing according to the present invention, be described in detail as follows.
Embodiment 1
A kind of wearable hard alloy manufacture method, it comprises following steps:
1. tungsten carbide base carbide alloy powder and a small amount of cubic boron nitride micro mist are fully mixed.Wimet Powder Particle Size is 1-5 micron, accounts for 97% of gross weight powder; Cubic boron nitride powder size is 1-10 micron, accounts for 3% of powder gross weight.
2. by evenly mixing together for above-mentioned mixed powder organic binder bond, through injector injection molding.Organic binder bond is wherein one or more the mixing of paraffin, high density polyethylene(HDPE), stearic acid, EVA resin.Mixed powder accounts for 50% of cumulative volume, and organic binder bond accounts for 50% of cumulative volume.
3. base substrate degreasing in organic solvent after injection, organic solvent is one or both mixing in trieline, chloroform, and degreasing time 2 hours is specifically depending on product size, thickness.
4. the base substrate after degreasing sinters at vacuum oven, sintering temperature 1400 DEG C, soaking time 1 hour.
Embodiment 2
1. tungsten carbide base carbide alloy powder and a small amount of cubic boron nitride micro mist are fully mixed.Wimet Powder Particle Size is 1-5 micron, accounts for 857% of gross weight powder; Cubic boron nitride powder size is 1-10 micron, accounts for 5% of powder gross weight.
2. by evenly mixing together for above-mentioned mixed powder organic binder bond, through injector injection molding.Organic binder bond is wherein one or more the mixing of paraffin, high density polyethylene(HDPE), stearic acid, EVA resin.Mixed powder accounts for 70% of cumulative volume, and organic binder bond accounts for 3% of cumulative volume.
3. base substrate degreasing in organic solvent after injection, organic solvent is one or both mixing in trieline, chloroform, and degreasing time 10 hours is specifically depending on product size, thickness.
4. the base substrate after degreasing sinters at vacuum oven, sintering temperature 1500 DEG C, soaking time 3 hours.
Embodiment 3
1. tungsten carbide base carbide alloy powder and a small amount of cubic boron nitride micro mist are fully mixed.Wimet Powder Particle Size is 1-5 micron, accounts for 90% of gross weight powder; Cubic boron nitride powder size is 1-10 micron, accounts for 10% of powder gross weight.
2. by evenly mixing together for above-mentioned mixed powder organic binder bond, through injector injection molding.Organic binder bond is wherein one or more the mixing of paraffin, high density polyethylene(HDPE), stearic acid, EVA resin.Mixed powder accounts for 60% of cumulative volume, and organic binder bond accounts for 40% of cumulative volume.
3. base substrate degreasing in organic solvent after injection, organic solvent is one or both mixing in trieline, chloroform, and degreasing time 6 hours is specifically depending on product size, thickness.
4. the base substrate after degreasing sinters at vacuum oven, sintering temperature 1300 DEG C, soaking time 2 hours.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. a wearable hard alloy manufacture method, is characterized in that, it comprises following steps:
1) in tungsten carbide base carbide alloy powder, a small amount of cubic boron nitride micro mist is added;
2) above-mentioned powder mix is evenly mixing together with organic binder bond, shaping through injector;
3) base substrate degreasing in organic solvent after injection;
4) enter vacuum oven sintering and obtain finished product.
2. a kind of wearable hard alloy manufacture method according to claim 1, is characterized in that, wherein said cubic boron nitride powder size is 1-10 micron, and add-on is the 3-15% of powder gross weight.
3. a kind of wearable hard alloy manufacture method according to claim 1, is characterized in that, wherein said organic binder bond is wherein one or more the mixing of paraffin, high density polyethylene(HDPE), stearic acid, EVA resin.
4. a kind of wearable hard alloy manufacture method according to claim 1, is characterized in that, wherein said organic solvent is one or both mixing in trieline, chloroform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510336382.XA CN105316505A (en) | 2015-06-17 | 2015-06-17 | Manufacturing method for abrasion-resistant cemented carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510336382.XA CN105316505A (en) | 2015-06-17 | 2015-06-17 | Manufacturing method for abrasion-resistant cemented carbide |
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| CN105316505A true CN105316505A (en) | 2016-02-10 |
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| CN201510336382.XA Pending CN105316505A (en) | 2015-06-17 | 2015-06-17 | Manufacturing method for abrasion-resistant cemented carbide |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107460355A (en) * | 2017-07-24 | 2017-12-12 | 株洲硬质合金集团有限公司 | A kind of forming agent for producing cemented carbide |
| CN113210606A (en) * | 2021-05-17 | 2021-08-06 | 深圳市注成科技股份有限公司 | Metal injection molding powder metallurgy repressing and re-sintering method |
| CN113770375A (en) * | 2021-07-28 | 2021-12-10 | 北京科技大学 | Ceramic matrix composite part with complex shape and preparation method thereof |
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| JPH04280903A (en) * | 1991-03-07 | 1992-10-06 | Japan Steel Works Ltd:The | Manufacture of cemented carbide powder for injection molding and cemented carbide sintered product |
| CN101134242A (en) * | 2007-10-17 | 2008-03-05 | 中南大学 | Method of producing hard alloy rotatable special-shaped blade |
| CN101598175A (en) * | 2008-06-04 | 2009-12-09 | 富准精密工业(深圳)有限公司 | The manufacture method of turning shaft structure |
| CN102248165A (en) * | 2011-07-12 | 2011-11-23 | 中南大学 | Preparation method of hard alloy with clad structure |
| CN102985198A (en) * | 2010-05-26 | 2013-03-20 | 山高刀具公司 | Method for producing cemented carbide products |
| JP2015229860A (en) * | 2014-06-04 | 2015-12-21 | 株式会社横山基礎工事 | Method to control groundwater movement in excavated pit, grout filling method, and water storage means |
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2015
- 2015-06-17 CN CN201510336382.XA patent/CN105316505A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04280903A (en) * | 1991-03-07 | 1992-10-06 | Japan Steel Works Ltd:The | Manufacture of cemented carbide powder for injection molding and cemented carbide sintered product |
| JP2729860B2 (en) * | 1991-03-07 | 1998-03-18 | 株式会社日本製鋼所 | Method of manufacturing cemented carbide powder for injection molding and sintered cemented carbide |
| CN101134242A (en) * | 2007-10-17 | 2008-03-05 | 中南大学 | Method of producing hard alloy rotatable special-shaped blade |
| CN101598175A (en) * | 2008-06-04 | 2009-12-09 | 富准精密工业(深圳)有限公司 | The manufacture method of turning shaft structure |
| CN102985198A (en) * | 2010-05-26 | 2013-03-20 | 山高刀具公司 | Method for producing cemented carbide products |
| CN102248165A (en) * | 2011-07-12 | 2011-11-23 | 中南大学 | Preparation method of hard alloy with clad structure |
| JP2015229860A (en) * | 2014-06-04 | 2015-12-21 | 株式会社横山基礎工事 | Method to control groundwater movement in excavated pit, grout filling method, and water storage means |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107460355A (en) * | 2017-07-24 | 2017-12-12 | 株洲硬质合金集团有限公司 | A kind of forming agent for producing cemented carbide |
| CN113210606A (en) * | 2021-05-17 | 2021-08-06 | 深圳市注成科技股份有限公司 | Metal injection molding powder metallurgy repressing and re-sintering method |
| CN113770375A (en) * | 2021-07-28 | 2021-12-10 | 北京科技大学 | Ceramic matrix composite part with complex shape and preparation method thereof |
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