CN102952985B - High-hardness and high-toughness metal ceramic composition and preparation method thereof - Google Patents
High-hardness and high-toughness metal ceramic composition and preparation method thereof Download PDFInfo
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- CN102952985B CN102952985B CN201210474183.1A CN201210474183A CN102952985B CN 102952985 B CN102952985 B CN 102952985B CN 201210474183 A CN201210474183 A CN 201210474183A CN 102952985 B CN102952985 B CN 102952985B
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Abstract
The invention provides a high-hardness and high-toughness metal ceramic composition and a preparation method thereof. The high-hardness and high-toughness metal ceramic composition comprises the following raw material components in percentage by weight: 40-70 percent of titanium carbide, 10-30 percent of tungsten carbide, 1-5 percent of tantalous carbide, 3-5 percent of chromium carbide, 10-20 percent of nickel and 5-10 percent of molybdenum. The preparation method of the high-hardness and high-toughness metal ceramic composition comprises the following steps of: 1, providing raw materials; 2, performing ball milling and stirring on each raw material component to obtain powder particles; 3, molding under a high pressure; 4, removing an adhesive and degreasing; and 5, sintering in vacuum at a high temperature. The high-hardness and high-toughness metal ceramic composition is prepared by adopting titanium carbide, tungsten carbide, tantalous carbide, chromium carbide, nickel and molybdenum, has high hardness, high toughness and high corrosion resistance, and is prevented from being broken and scratched.
Description
Technical field
The present invention relates to a kind of cermet composition, relate in particular to a kind of high hardness high toughness cermet composition and preparation method thereof.
Background technology
Along with growth in the living standard, people are also more and more higher to the requirement of quality of the life and external image, and ornaments not only play the effect of decoration, also have the vivid effect that promotes.In order to meet different customer demands, there are in the market the various ornaments such as wrist-watch, bangle, ring, these ornaments much adopt the material such as cermet composition or stainless steel to make, and cost is lower, is prone to diversification of forms.Wherein,, though have high, the anti abrasive advantage of hardness, also there is frangible deficiency in the ornaments that adopt cermet composition to make; And the ornaments that adopt stainless material to make, toughness is high, but hardness is low compared with cermet composition, easily produces cut, causes ornaments surface not attractive in appearance.
Summary of the invention
An object of the present invention is, a kind of high hardness high toughness cermet composition is provided, and its hardness is high, and has good toughness, and resistance to abrasion is strong, non-friable, is difficult for producing cut.
Another object of the present invention is to provide a kind of making method of high hardness high toughness cermet composition, simple to operate.
For achieving the above object, the invention provides a kind of high hardness high toughness cermet composition, it comprise feed composition and weight percent as follows: titanium carbide 40-70%, wolfram varbide 10-30%, tantalum carbide 1-5%, chromium carbide 3-5%, nickel 10-20% and molybdenum 5-10%.
The preferred 50-60% of the weight percent of titanium carbide in composition, the preferred 15-30% of weight percent of wolfram varbide, the preferred 1-2% of weight percent of tantalum carbide.
Meanwhile, the invention provides a kind of making method of high hardness high toughness cermet composition, comprise the steps:
Step 1, supplies raw materials, and this feed composition and weight percent thereof are as follows: titanium carbide 40-70%, preferably 50-60%, wolfram varbide 10-30%, preferably 15-30%, tantalum carbide 1-5%, preferably 1-2%, chromium carbide 3-5%, nickel 10-20% and molybdenum 5-10%;
Step 2, by each feed composition ball grinding stirring, makes powder particle;
Step 3, high-pressure molding;
Step 4, binder removal degreasing;
Step 5, vacuum high-temperature sintering.
In step 2, the ball grinding stirring time is 48-90 hour.
In step 2, powder particle particle diameter is 0.5-5 μ m.
In step 3, high-pressure molding adopts dry-pressing, hot pressing or isostatic pressing.
In step 4, the temperature of binder removal degreasing is less than or equal to 500 DEG C.
In step 5, sintering temperature is 1400-1450 DEG C, insulation 2-4 hour.
Beneficial effect of the present invention: the present invention adopts titanium carbide, wolfram varbide, tantalum carbide, chromium carbide, nickel and molybdenum to make the cermet composition of high hardness high toughness, this composition hardness making is high, and has good toughness, and resistance to abrasion is strong, non-friable, be difficult for producing cut.
Embodiment
The invention provides a kind of cermet composition of high hardness high toughness, it comprise feed composition and weight percent as follows: titanium carbide 40-70%, wolfram varbide 10-30%, tantalum carbide 1-5%, chromium carbide 3-5%, nickel 10-20% and molybdenum 5-10%.The seepage discharge of the nickel in said composition meets the testing standard of Europe superscript EN1811.
Wherein, the preferred 50-60% of the weight percent of titanium carbide, the preferred 15-30% of weight percent of wolfram varbide, the preferred 1-2% of weight percent of tantalum carbide.
The vickers hardness hv of this cermet composition can reach 900-1000, and fracture toughness property can reach 2500MPam
1/2.
The making method of high hardness high toughness cermet composition of the present invention, comprises the steps:
Step 1, supplies raw materials, and this feed composition and weight percent thereof are as follows: titanium carbide 40-70%, preferably 50-60%, wolfram varbide 10-30%, preferably 15-30%, tantalum carbide 1-5%, preferably 1-2%, chromium carbide 3-5%, nickel 10-20% and molybdenum 5-10%.
Step 2, by each feed composition ball grinding stirring 48-90 hour in ball mill, makes the powder particle that particle diameter is 0.5-5 μ m.
Step 3, high-pressure molding, is placed in the moulding of preformed mould mesohigh by the powder particle after ball grinding stirring, and the demoulding after moulding obtains composition work in-process.High-pressure molding adopts dry-pressing, hot pressing or isostatic pressing, selects according to actually operating condition.
Step 4, binder removal degreasing is heated the composition work in-process after high-pressure molding in draft glue discharging furnace, carries out binder removal degreasing, carries out afterwards naturally cooling, and the temperature of binder removal degreasing is less than or equal to 500 DEG C.
Step 5, vacuum high-temperature sintering, is placed in sintering oven by the composition work in-process after above-mentioned binder removal degreasing, under the hot environment of vacuum, 1400-1450 DEG C, carries out sintering, and insulation 2-4 hour, obtains composition finished product.The composition finished product vickers hardness hv that this makes can reach 900-1000, and fracture toughness property can reach 2500MPam
1/2, resistance to abrasion is strong, non-friable, is difficult for producing cut, therefore adopts the ornaments such as wrist-watch that said composition makes, ring, bangle to have good toughness, and non-friable and difficult generation cut is both artistic and practical.
In sum, the present invention adopts titanium carbide, wolfram varbide, tantalum carbide, chromium carbide, nickel and molybdenum to make the cermet composition of high hardness high toughness, and this composition hardness making is high, and there is good toughness, resistance to abrasion is strong, non-friable, is difficult for producing cut.
The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of the accompanying claim of the present invention.
Claims (7)
1. a high hardness high toughness cermet composition, it is characterized in that, it comprise feed composition and weight percent as follows: titanium carbide 50-60%, wolfram varbide 15-30%, tantalum carbide 1-5%, chromium carbide 3-5%, nickel 10-20% and molybdenum 10%, each component concentration sum is 100%;
The vickers hardness hv of described high hardness high toughness cermet composition reaches 900-1000, and fracture toughness property reaches 2500MPam
1/2.
2. high hardness high toughness cermet composition as claimed in claim 1, is characterized in that, the preferred 1-2% of weight percent of tantalum carbide.
3. a making method for high hardness high toughness cermet composition, comprises the steps:
Step 1, supplies raw materials, and this feed composition and weight percent thereof are as follows: titanium carbide 50-60%, wolfram varbide 15-30%, tantalum carbide 1-2%, chromium carbide 3-5%, nickel 10-20% and molybdenum 10%, and each component concentration sum is 100%;
Step 2, by each feed composition ball grinding stirring, makes powder particle; Powder particle particle diameter is 0.5-5 μ m;
Step 3, high-pressure molding;
Step 4, binder removal degreasing;
Step 5, vacuum high-temperature sintering.
4. the making method of high hardness high toughness cermet composition as claimed in claim 3, is characterized in that, in step 2, the ball grinding stirring time is 48-90 hour.
5. the making method of high hardness high toughness cermet composition as claimed in claim 3, is characterized in that, in step 3, high-pressure molding adopts dry-pressing, hot pressing or isostatic pressing.
6. the making method of high hardness high toughness cermet composition as claimed in claim 3, is characterized in that, in step 4, the temperature of binder removal degreasing is less than or equal to 500 DEG C.
7. the making method of high hardness high toughness cermet composition as claimed in claim 3, is characterized in that, in step 5, sintering temperature is 1400-1450 DEG C, insulation 2-4 hour.
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| CN201210474183.1A CN102952985B (en) | 2012-11-21 | 2012-11-21 | High-hardness and high-toughness metal ceramic composition and preparation method thereof |
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| CN201210474183.1A CN102952985B (en) | 2012-11-21 | 2012-11-21 | High-hardness and high-toughness metal ceramic composition and preparation method thereof |
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| CN102952985A CN102952985A (en) | 2013-03-06 |
| CN102952985B true CN102952985B (en) | 2014-11-05 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361533B (en) * | 2013-07-09 | 2014-03-05 | 华中科技大学 | Titanium carbide-based solid solution metal ceramic and preparation method thereof |
| CN105296781A (en) * | 2015-12-02 | 2016-02-03 | 苏州捷德瑞精密机械有限公司 | Alloy material for cutter and preparation method thereof |
| CN105734389A (en) * | 2016-04-12 | 2016-07-06 | 陈雪琴 | High-toughness metal ceramic die material and preparation method thereof |
| CN105880605B (en) * | 2016-05-16 | 2017-12-29 | 四川欧曼机械有限公司 | A kind of big specification hard alloy valve ball production technologies of φ more than 80 |
| CN105970061A (en) * | 2016-06-23 | 2016-09-28 | 王莹 | High-strength carbide-base metal ceramic lining plate and preparation method thereof |
| CN108611003A (en) * | 2018-05-18 | 2018-10-02 | 安徽朗凯奇建材有限公司 | A kind of stretch-proof double-sided self-adhesive polymer modified bituminous polyester fiber waterproof sheet material |
| CN110669976B (en) * | 2019-11-13 | 2020-11-17 | 徐州工业职业技术学院 | Ceramic metal material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079996A (en) * | 1992-06-08 | 1993-12-29 | 东北机器制造总厂 | The light hard alloy that hot-work is used |
| CN101702922A (en) * | 2007-05-21 | 2010-05-05 | 钴碳化钨硬质合金公司 | cemented carbide with ultra-low thermal conductivity |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003293113A (en) * | 2002-04-03 | 2003-10-15 | Aisan Ind Co Ltd | Molding die and manufacturing method therefor |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079996A (en) * | 1992-06-08 | 1993-12-29 | 东北机器制造总厂 | The light hard alloy that hot-work is used |
| CN101702922A (en) * | 2007-05-21 | 2010-05-05 | 钴碳化钨硬质合金公司 | cemented carbide with ultra-low thermal conductivity |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-293113A 2003.10.15 * |
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