CN105177337A - Preparation method for composite hard alloy material - Google Patents
Preparation method for composite hard alloy material Download PDFInfo
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- CN105177337A CN105177337A CN201510649636.3A CN201510649636A CN105177337A CN 105177337 A CN105177337 A CN 105177337A CN 201510649636 A CN201510649636 A CN 201510649636A CN 105177337 A CN105177337 A CN 105177337A
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Abstract
The invention discloses a composite hard alloy material and relates to the field of composite materials. The composite hard alloy material comprises, by weight, 35-40 parts of nano-titanium carbide, 5-15 parts of nano-titanium nitride, 7-9 parts of tungsten carbide, 5-8 parts of niobium carbide, 3-7 parts of silicon carbide, 1-3 parts of yttrium oxide, 1-3 parts of aluminum carbide, 1-5 parts of titanium powder, 2-10 parts of tantalum carbide, 2-5 parts of zirconium carbide, 10-13 parts of cobalt powder, 0.5-1.5 parts of silica powder, 1-2 parts of nickel powder and 2-6 parts of boron carbide. A rare earth element is added, and the rare earth element is more active relative to other elements in the hard alloy and can be easily combined with oxygen, sulfur and other impurities in the alloy to purify the crystal boundary and eliminate defects, so that the prepared alloy has the characteristics of being high in strength, good in toughness, resistant to wear and good in thermal shock performance. The composite hard alloy material is applicable to the composite hard alloy material field.
Description
the application is application number2015102723279
, the applying date is on May 26th, 2015, and name is calleda kind of composite hard alloy material and preparation method thereof
divisional application.
Technical field
The present invention relates to field of compound material, relate to a kind of composite hard alloy material preparation method in particular.
Background technology
Hardmetal materials is applied to manufacturing machining tool, has high, the good high-temperature behavior of hardness and outstanding wear resisting property, is known as the tooth of industry.
Tungsten carbide base carbide alloy is due to its high strength, high rigidity, high-wearing feature and high red hardness, be widely used as cutting tool, mine instrument and wear part etc., from impelling strength and wear resistance composite request, low cobalt and gross grain grain alloy structure can meet this requirement.
Sintering metal goes through three generations up to now, and the first-generation is " World War II " period, and Germany produces sintering metal with Ni bonding TiC; The s-generation improves the wettability of TiC and other carbide in Ford Motor Company of the U.S. interpolation sixties in 20th century Mo to Ni Binder Phase, thus improve the toughness of material; Nitride is then introduced the hard phase of alloy by third generation sintering metal, and changing single-phase is compound phase.Binder Phase is improved with other elements again by adding Co phase.Another new direction of sintering metal development is boride-base cerment.Because boride ceramics has very high hardness, fusing point and excellent electroconductibility, erosion resistance, thus the sintering metal making that boride-base cerment becomes the most rising.But China is still undesirable in the improvement of aspect of performance to sintering metal at present, existing ceramic-metallic Rockwell hardness and bending strength still need to be improved further.
Ti (C; N) based ceramic metal is that a class is with Ti (C; N) powder mix of powder or TiC and TiN is hard phase main raw material; be bonding phase raw material with metals such as Co, Ni, Mo; and usually also add transition metal carbides such as having WC, TaC, NbC, Mo2C, VC, Cr3C2 for additive is through the matrix material pulverized, mixing-mold pressing-sintering is formed, mainly for the manufacture of cutting tool.
Compared with traditional WC-Co hard alloy, Ti (C, N) based ceramic metal tool has the following advantages: the thermal conductivity that high red hardness, high-temperature oxidation resistance are good, high.These performances make Ti (C, N) based ceramic metal be more suitable for carrying out high speed cutting and to the precision work of material and semi-finishing.But compared with WC-Co hard alloy, the obdurability that Ti (C, N) based ceramic metal is lower but significantly limit its application as cutter material.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide that a kind of intensity is high, good toughness, the composite hard alloy material that wear-resisting, thermal shock resistance properties is good and preparation method thereof.
For achieving the above object, the invention provides following technical scheme: a kind of composite hard alloy material, this composite hard alloy material is obtained by the component of following parts by weight: nano titanium carbide 35-40 part, Nano titanium nitride 5-15 part, wolfram varbide 7-9 part, niobium carbide 5-8 part, silicon carbide 3-7 part, yttrium oxide 1-3 part, aluminium carbide 1-3 part, titanium valve 1-5 part, tantalum carbide 2-10 part, zirconium carbide 2-5 part, cobalt powder 10-13 part, silica flour 0.5-1.5 part, nickel powder 1-2 part, norbide 2-6 part.
The present invention is set to further: this composite hard alloy material is obtained by the component of following parts by weight: nano titanium carbide 38 parts, Nano titanium nitride 10 parts, wolfram varbide 8 parts, niobium carbide 6 parts, 6 parts, silicon carbide, yttrium oxide 2.5 parts, aluminium carbide 2 parts, titanium valve 4 parts, tantalum carbide 5 parts, zirconium carbide 4 parts, cobalt powder 11 parts, silica flour 1 part, nickel powder 1.5 parts, norbide 4 parts.
The present invention is set to further: the granularity of described wolfram varbide, cobalt powder, nickel powder, silica flour, aluminium carbide, tantalum carbide, nano titanium carbide, silicon carbide and yttrium oxide is all less than or equal to 1.2 μm.
The present invention is set to further: the purity of described wolfram varbide, cobalt powder, nickel powder, silica flour, aluminium carbide, tantalum carbide, nano titanium carbide, silicon carbide and yttrium oxide is all more than or equal to 99.0%.
The present invention is set to further: a kind of preparation method of composite hard alloy material, the component nano titanium carbide of above-mentioned parts by weight, Nano titanium nitride, wolfram varbide, niobium carbide, silicon carbide, yttrium oxide, aluminium carbide, titanium valve, tantalum carbide, zirconium carbide, cobalt powder, silica flour, nickel powder and norbide are added to shredder and carry out mixed grinding, and suppress under 530 to 540MPa, under argon atmosphere, after at 1100 DEG C, sinter 10-20min, treat naturally cooling, obtain described composite hard alloy material.
The present invention is set to further: the rotating speed of shredder is 70-80r/min, and milling time is 1-1.5h.
By adopting technique scheme, the present invention, owing to the addition of rare earth oxide preparing in Wimet process, is reduced to rare earth metal after mixing.In presintering process, rare earth element can be solidly soluted in Co phase on the one hand, plays the effect of inhibiting grain growth; On the other hand, because rare earth element is more active relative to other element in Wimet, the impurity such as oxygen, sulphur easily in alloy is combined, purification crystal boundary, eliminate defect, the alloy prepared is had, and intensity is high, good toughness, the feature that wear-resisting, thermal shock resistance properties is good.
Embodiment
Specific embodiment 1
Composite hard alloy material is obtained by the component of following parts by weight: nano titanium carbide 35 parts, Nano titanium nitride 15 parts, wolfram varbide 9 parts, niobium carbide 5 parts, 3 parts, silicon carbide, yttrium oxide 1 part, aluminium carbide 3 parts, titanium valve 5 parts, tantalum carbide 2 parts, zirconium carbide 2 parts, cobalt powder 13 parts, silica flour 0.5 part, nickel powder 2 parts, norbide 6 parts, wherein, wolfram varbide, nickel powder, aluminium carbide, the granularity of nano titanium carbide and yttrium oxide is 0.8 μm, cobalt powder, silica flour, the granularity of tantalum carbide and silicon carbide is 1.0 μm, in addition, wolfram varbide, cobalt powder, nickel powder, silica flour, aluminium carbide, tantalum carbide, nano titanium carbide, the purity of silicon carbide and yttrium oxide is equal to 99.5%.
(rotating speed of shredder is 80r/min nano titanium carbide after above-mentioned weighing, Nano titanium nitride, wolfram varbide, niobium carbide, silicon carbide, yttrium oxide, aluminium carbide, titanium valve, tantalum carbide, zirconium carbide, cobalt powder, silica flour, nickel powder and norbide to be added to shredder, milling time is 1.5h) carry out mixed grinding, and suppress under 530MPa, under argon atmosphere, after at 1100 DEG C, sinter 20min, treat naturally cooling, obtain described composite hard alloy material.
Specific embodiment 2
Composite hard alloy material is obtained by the component of following parts by weight: nano titanium carbide 40 parts, Nano titanium nitride 5 parts, wolfram varbide 7 parts, niobium carbide 8 parts, 7 parts, silicon carbide, yttrium oxide 3 parts, aluminium carbide 1 part, titanium valve 1 part, tantalum carbide 10 parts, zirconium carbide 5 parts, cobalt powder 10 parts, silica flour 1.5 parts, nickel powder 1 part, norbide 2 parts, wherein, wolfram varbide, nickel powder, aluminium carbide, the granularity of nano titanium carbide and yttrium oxide is 1.2 μm, cobalt powder, silica flour, the granularity of tantalum carbide and silicon carbide is 0.8 μm, in addition, wolfram varbide, cobalt powder, nickel powder, silica flour, aluminium carbide, tantalum carbide, nano titanium carbide, the purity of silicon carbide and yttrium oxide is equal to 99.7%.
(rotating speed of shredder is 70r/min nano titanium carbide after above-mentioned weighing, Nano titanium nitride, wolfram varbide, niobium carbide, silicon carbide, yttrium oxide, aluminium carbide, titanium valve, tantalum carbide, zirconium carbide, cobalt powder, silica flour, nickel powder and norbide to be added to shredder, milling time is 1h) carry out mixed grinding, and suppress under 540MPa, under argon atmosphere, after at 1100 DEG C, sinter 10min, treat naturally cooling, obtain described composite hard alloy material.
Specific embodiment 3
Composite hard alloy material is obtained by the component of following parts by weight: nano titanium carbide 38 parts, Nano titanium nitride 10 parts, wolfram varbide 8 parts, niobium carbide 6 parts, 6 parts, silicon carbide, yttrium oxide 2.5 parts, aluminium carbide 2 parts, titanium valve 4 parts, tantalum carbide 5 parts, zirconium carbide 4 parts, cobalt powder 11 parts, silica flour 1 part, nickel powder 1.5 parts, norbide 4 parts, wherein, wolfram varbide, nickel powder, aluminium carbide, the granularity of nano titanium carbide and yttrium oxide is 0.8 μm, cobalt powder, silica flour, the granularity of tantalum carbide and silicon carbide is 0.8 μm, in addition, wolfram varbide, cobalt powder, nickel powder, silica flour, aluminium carbide, tantalum carbide, nano titanium carbide, the purity of silicon carbide and yttrium oxide is equal to 99.3%.
(rotating speed of shredder is 75r/min nano titanium carbide after above-mentioned weighing, Nano titanium nitride, wolfram varbide, niobium carbide, silicon carbide, yttrium oxide, aluminium carbide, titanium valve, tantalum carbide, zirconium carbide, cobalt powder, silica flour, nickel powder and norbide to be added to shredder, milling time is 1h) carry out mixed grinding, and suppress under 535MPa, under argon atmosphere, after at 1100 DEG C, sinter 10min, treat naturally cooling, obtain described composite hard alloy material.
By adopting technique scheme, the present invention, owing to the addition of rare earth oxide preparing in Wimet process, is reduced to rare earth metal after mixing.In presintering process, rare earth element can be solidly soluted in Co phase on the one hand, plays the effect of inhibiting grain growth; On the other hand, because rare earth element is more active relative to other element in Wimet, the impurity such as oxygen, sulphur easily in alloy is combined, purification crystal boundary, eliminate defect, the alloy prepared is had, and intensity is high, good toughness, the feature that wear-resisting, thermal shock resistance properties is good.
Claims (2)
1. a composite hard alloy material preparation method, it is characterized in that, the component nano titanium carbide of above-mentioned parts by weight, Nano titanium nitride, wolfram varbide, niobium carbide, silicon carbide, yttrium oxide, aluminium carbide, titanium valve, tantalum carbide, zirconium carbide, cobalt powder, silica flour, nickel powder and norbide are added to shredder and carry out mixed grinding, and suppress under 530 to 540MPa, under argon atmosphere, after at 1100 DEG C, sinter 10-20min, treat naturally cooling, obtain described composite hard alloy material.
2. the preparation method of a kind of composite hard alloy material according to claim 1, is characterized in that, the rotating speed of shredder is 70-80r/min, and milling time is 1-1.5h.
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| CN201510272327.9A CN104831144A (en) | 2015-05-26 | 2015-05-26 | Composite hard alloy material and preparing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925866A (en) * | 2016-06-22 | 2016-09-07 | 柳州市同进汽车零部件制造有限公司 | Preparation method of sand maker alloy bar |
| CN108015504A (en) * | 2017-11-30 | 2018-05-11 | 株洲三鑫硬质合金生产有限公司 | A kind of hard alloy V grooves knife and its production technology |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105884338A (en) * | 2016-04-08 | 2016-08-24 | 苏州捷德瑞精密机械有限公司 | Aluminum oxide-titanium nitride-vanadium carbide cutter material and preparation method thereof |
| CN108588462B (en) * | 2018-06-14 | 2019-12-31 | 陕西理工大学 | Preparation method of complex phase co-strengthening hard alloy material |
| CN110592589A (en) * | 2019-09-28 | 2019-12-20 | 马鞍山海华耐磨材料科技有限公司 | Surface wear-resistant treatment material for machining equipment |
| CN115611630B (en) * | 2022-11-02 | 2023-07-07 | 株洲科锐钨钢新材料有限公司 | Cemented carbide bar produced by extrusion molding process and preparation method thereof |
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2015
- 2015-05-26 CN CN201510272327.9A patent/CN104831144A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925866A (en) * | 2016-06-22 | 2016-09-07 | 柳州市同进汽车零部件制造有限公司 | Preparation method of sand maker alloy bar |
| CN108015504A (en) * | 2017-11-30 | 2018-05-11 | 株洲三鑫硬质合金生产有限公司 | A kind of hard alloy V grooves knife and its production technology |
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| CN104831144A (en) | 2015-08-12 |
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