CN104148652B - A kind of preparation method of diamond block - Google Patents
A kind of preparation method of diamond block Download PDFInfo
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- CN104148652B CN104148652B CN201410391886.7A CN201410391886A CN104148652B CN 104148652 B CN104148652 B CN 104148652B CN 201410391886 A CN201410391886 A CN 201410391886A CN 104148652 B CN104148652 B CN 104148652B
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Abstract
The invention discloses a kind of preparation method of diamond block, in the present invention, the carcass material of diamond block is by 15 55% tungsten copper ferroalloy powders, 15 30% Cu15Sn powder, 2 8% Ni powder and 68 7% Fe powder constituents, it utilizes the high activity of tungsten copper ferroalloy, highly thermally conductive property and high impact resistance, it is combined as the Cu15Sn of liquid phase, Ni to improve toughness, and it is used as the Fe of filling phase, obtained diamond block, by taking 25*8*5 locking nubs as an example, determined according to experiment, its bending strength is the 105HRB of 1200 1600MPa. hardness 90, testing machine test is cut with bridge, power consumption is 5 7KW, service life is up to 8 12m2/ mm, power consumption and life-span are superior to existing diamond block.
Description
Technical field
The present invention relates to diamond tool field, and in particular to a kind of preparation method of diamond block.
Background technology
Carcass is the metal sinter of diamond, and the effect of carcass is to hold diamond, it is played a part of cutting, and
It will not prematurely fall off.Carcass is typically made up of how each Determination of multiple metal elements, and existing diamond block typically uses Fe-
Cu-Ni-Sn alloys have low intensity, heat-resisting impact resistance difference as carcass using the diamond block of this carcass
Problem.
The content of the invention
It is an object of the invention to provide a kind of preparation method of diamond block, the diamond block prepared with the method,
With the characteristics of bending strength is high, hardness is high, service life is long.
It is a further object of the present invention to provide carcass material used in above-mentioned preparation method.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of preparation method of diamond block, is achieved by the steps of：
First, carcass material is prepared：Carcass material is main by 15-55% tungsten coppers ferroalloy powder, 15-30%Cu15Sn powder
End, 2-8%Ni powder and 68-7%Fe powder constituents, the granularity of above-mentioned various powder is 100-400 mesh；By above-mentioned weight ratio
Example weighs tungsten copper ferroalloy powder, Cu15Sn powder, Ni powder and Fe powder, is well mixed, obtains carcass material；
2nd, Ti-coated diamond is prepared：The diamond and granularity for being 25/30-45/50 by granularity are the titanium valve of 100-400 mesh
It is well mixed, vacuum condition, titanizing is carried out to diamond at 800-820 DEG C so that the titanium film thickness of diamond surface is 0.1-
0.2mm, obtains Ti-coated diamond, and obtained Ti-coated diamond is well mixed；
3rd, by above-mentioned well mixed Ti-coated diamond with the above-mentioned carcass material being well mixed by Ti-coated diamond 15-
30%th, carcass material 85-70% part by weight is mixed, and obtains compound, and using the weight of this compound as radix
6-10ml/kg paraffin is added, this compound is fully soaked；
4th, above-mentioned compound is well mixed with the mixture of above-mentioned paraffin, obtains locking nub blank；
5th, by above-mentioned locking nub blank in 1.5-2.0t/cm2It is compressing under pressure, obtain pressed compact；
6th, pressed compact is loaded into graphite jig, in vacuum heating-press sintering machine, 820-880 DEG C of temperature, 400-500kg/cm2
1-2min is incubated under pressure；
7th, after mould cooling, form removal obtains diamond block.
Above-mentioned tungsten copper ferroalloy powder uses the 30W-20Cu-50Fe that Hunan Sai Rui new materials Co., Ltd produces.
A kind of novel matrix material, is mainly mixed by the component of following parts by weight：
The granularity of above-mentioned various powder is 100-400 mesh.
Above-mentioned tungsten copper ferroalloy powder uses the 30W-20Cu-50Fe that Hunan Sai Rui new materials Co., Ltd produces.
After such scheme, in the present invention, the carcass material of diamond block utilizes the high activity of tungsten copper ferroalloy, height
Thermal conductance and high impact resistance, are combined as the Cu15Sn of liquid phase, the Ni to improve toughness, and are used as filling phase
Fe, obtained diamond block by taking 25*8*5 locking nubs as an example, is determined according to experiment, and its bending strength is 1200-1600MPa.
Hardness 90-105HRB, testing machine test is cut with bridge, power consumption is 5-7KW, and service life is up to 8-12m2/ mm, power consumption
Existing diamond block is superior to the life-span.
Embodiment
Embodiment one：
A kind of preparation method of novel diamond block of the present invention, is achieved by the steps of：
First, carcass material is prepared：Carcass material is by 15% tungsten copper ferroalloy powder, 15%Cu15Sn powder, 2%Ni powder
With 68%Fe powder constituents, the granularity of above-mentioned various powder is 100-400 mesh；Tungsten copper ferroalloy is weighed by above-mentioned part by weight
Powder, Cu15Sn powder, Ni powder and Fe powder, with three-dimensional material mixer mixing 60-80min, obtain carcass material；
2nd, Ti-coated diamond is prepared：The diamond and granularity for being 25/30-45/50 by granularity are the titanium valve of 100-400 mesh
With three-dimensional material mixer mixing 10-20min, vacuum condition, titanizing is carried out to diamond at 800-820 DEG C so that diamond surface
Titanium film thickness be 0.1-0.2mm, obtain Ti-coated diamond, and by obtained Ti-coated diamond three-dimensional material mixer mixing 15-
30min；
3rd, by above-mentioned well mixed Ti-coated diamond with the above-mentioned carcass material being well mixed by Ti-coated diamond 15-
30%th, carcass material 85-70% part by weight is mixed, and obtains compound, and using the weight of this compound as radix
6ml/kg paraffin is added, this compound is fully soaked；
4th, the mixture of above-mentioned compound and above-mentioned paraffin is obtained into locking nub base with three-dimensional material mixer mixing 45-60min
Material；
5th, by above-mentioned locking nub blank in 1.5-2.0t/cm2It is compressing under pressure, obtain pressed compact；
6th, pressed compact is loaded into graphite jig, in vacuum heating-press sintering machine, 820-880 DEG C of temperature, 400-500kg/cm2
1-2min is incubated under pressure；
7th, after mould cooling, form removal obtains diamond block.
A kind of novel matrix material of the present embodiment, is mixed by the component of following parts by weight：
The granularity of above-mentioned various powder is 100-400 mesh.
Embodiment two：
A kind of preparation method of novel diamond block of the present invention, is achieved by the steps of：
First, carcass material is prepared：Carcass material is by 55% tungsten copper ferroalloy powder, 30%Cu15Sn powder, 8%Ni powder
With 7%Fe powder constituents, the granularity of above-mentioned various powder is 100-400 mesh；Tungsten copper ferroalloy is weighed by above-mentioned part by weight
Powder, Cu15Sn powder, Ni powder and Fe powder, with three-dimensional material mixer mixing 60-80min, obtain carcass material；
2nd, Ti-coated diamond is prepared：The diamond and granularity for being 25/30-45/50 by granularity are the titanium valve of 100-400 mesh
With three-dimensional material mixer mixing 10-20min, vacuum condition, titanizing is carried out to diamond at 800-820 DEG C so that diamond surface
Titanium film thickness be 0.1-0.2mm, obtain Ti-coated diamond, and by obtained Ti-coated diamond three-dimensional material mixer mixing 15-
30min；
3rd, by above-mentioned well mixed Ti-coated diamond with the above-mentioned carcass material being well mixed by Ti-coated diamond 15-
30%th, carcass material 85-70% part by weight is mixed, and obtains compound, and using the weight of this compound as radix
8ml/kg paraffin is added, this compound is fully soaked；
4th, the mixture of above-mentioned compound and above-mentioned paraffin is obtained into locking nub base with three-dimensional material mixer mixing 45-60min
Material；
5th, by above-mentioned locking nub blank in 1.5-2.0t/cm2It is compressing under pressure, obtain pressed compact；
6th, pressed compact is loaded into graphite jig, in vacuum heating-press sintering machine, 820-880 DEG C of temperature, 400-500kg/cm2
1-2min is incubated under pressure；
7th, after mould cooling, form removal obtains diamond block.
A kind of novel matrix material of the present embodiment, is mixed by the component of following parts by weight：
The granularity of above-mentioned various powder is 100-400 mesh.
Embodiment three：
A kind of preparation method of novel diamond block of the present invention, is achieved by the steps of：
First, carcass material is prepared：Carcass material is by 35% tungsten copper ferroalloy powder, 22%Cu15Sn powder, 5%Ni powder
With 38%Fe powder constituents, the granularity of above-mentioned various powder is 100-400 mesh；Tungsten copper ferroalloy is weighed by above-mentioned part by weight
Powder, Cu15Sn powder, Ni powder and Fe powder, with three-dimensional material mixer mixing 60-80min, obtain carcass material；
2nd, Ti-coated diamond is prepared：The diamond and granularity for being 25/30-45/50 by granularity are the titanium valve of 100-400 mesh
With three-dimensional material mixer mixing 10-20min, vacuum condition, titanizing is carried out to diamond at 800-820 DEG C so that diamond surface
Titanium film thickness be 0.1-0.2mm, obtain Ti-coated diamond, and by obtained Ti-coated diamond three-dimensional material mixer mixing 15-
30min；
3rd, by above-mentioned well mixed Ti-coated diamond with the above-mentioned carcass material being well mixed by Ti-coated diamond 15-
30%th, carcass material 85-70% part by weight is mixed, and obtains compound, and using the weight of this compound as radix
10ml/kg paraffin is added, this compound is fully soaked；
4th, the mixture of above-mentioned compound and above-mentioned paraffin is obtained into locking nub base with three-dimensional material mixer mixing 45-60min
Material；
5th, by above-mentioned locking nub blank in 1.5-2.0t/cm2It is compressing under pressure, obtain pressed compact；
6th, pressed compact is loaded into graphite jig, in vacuum heating-press sintering machine, 820-880 DEG C of temperature, 400-500kg/cm2
1-2min is incubated under pressure；
7th, after mould cooling, form removal obtains diamond block.
A kind of novel matrix material of the present embodiment, is mixed by the component of following parts by weight：
The granularity of above-mentioned various powder is 100-400 mesh.
In the present invention, tungsten copper ferroalloy powder uses the 30W-20Cu-50Fe that Hunan Sai Rui new materials Co., Ltd produces.
Its performance and parameter can be from the website http of Hunan Sai Rui new materials Co., Ltd://www.hnsunray.com.cn/
products_info.aspId=145 is learnt.
Claims (1)
1. a kind of preparation method of diamond block, it is characterised in that：It is achieved by the steps of：
First, carcass material is prepared：Carcass material is by 15-55% tungsten coppers ferroalloy powder, 15-30%Cu15Sn powder, 2-8%Ni
Powder and 68-7%Fe powder constituents, the granularity of above-mentioned various powder is 100-400 mesh；Tungsten copper is weighed by above-mentioned part by weight
Ferroalloy powder, Cu15Sn powder, Ni powder and Fe powder, are well mixed, obtain carcass material；
2nd, Ti-coated diamond is prepared：The diamond for being 25/30-45/50 by granularity is mixed with the titanium valve that granularity is 100-400 mesh
Uniformly, vacuum condition, titanizing is carried out to diamond at 800-820 DEG C so that the titanium film thickness of diamond surface is 0.1-
0.2mm, obtains Ti-coated diamond, and obtained Ti-coated diamond is well mixed；
3rd, by above-mentioned well mixed Ti-coated diamond and the above-mentioned carcass material being well mixed by Ti-coated diamond 15-30%,
Carcass material 85-70% part by weight is mixed, and obtains compound, and the addition 6- by radix of the weight of this compound
10ml/kg paraffin, is fully soaked to this compound；
4th, above-mentioned compound is well mixed with the mixture of above-mentioned paraffin, obtains locking nub blank；
5th, by above-mentioned locking nub blank under 1.5-2.0t/cm2 pressure it is compressing, obtain pressed compact；
6th, pressed compact is loaded into graphite jig, in vacuum heating-press sintering machine, 820-880 DEG C of temperature, 400-500kg/cm2 pressure
Lower insulation 1-2min；
7th, after mould cooling, form removal obtains diamond block.
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| CN104399985B (en) * | 2014-12-18 | 2017-04-12 | 广东新劲刚新材料科技股份有限公司 | Preparation method of diamond segment |
| CN105921753A (en) * | 2016-05-06 | 2016-09-07 | 西安工业大学 | Method for preparing near-net-shape parts with complex shapes from diamond-copper composite material |
| CN108823532A (en) * | 2018-08-02 | 2018-11-16 | 泉州众志金刚石工具有限公司 | A kind of diamond tool and preparation method thereof of diamond surface metallization processing |
| CN112207274A (en) * | 2020-10-14 | 2021-01-12 | 泉州众志金刚石工具有限公司 | Artificial quartz stone gang saw tool bit and preparation method thereof |
| CN113462924B (en) * | 2021-06-18 | 2022-03-29 | 中国地质大学（武汉） | Titanium-plated diamond copper composite material and preparation method thereof |
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| JPS5823353B2 (en) * | 1978-05-17 | 1983-05-14 | 住友電気工業株式会社 | Sintered body for cutting tools and its manufacturing method |
| CN101608533B (en) * | 2009-07-20 | 2012-06-20 | 吉林大学 | Drill bit impregnated with diamond film and manufacturing method thereof |
| CN101961784B (en) * | 2010-09-21 | 2012-06-27 | 博深工具股份有限公司 | Powder metallurgy material and method for manufacturing diamond bit |
| CN102133640A (en) * | 2011-04-08 | 2011-07-27 | 河北小蜜蜂工具集团有限公司 | Method for preparing diamond tool bit from iron-based pre-alloyed powder |
| CN102974818B (en) * | 2012-12-19 | 2015-01-28 | 江西坚德实业有限公司 | Formula and manufacturing method for special diamond tool bit |
| CN103894939B (en) * | 2014-03-25 | 2016-05-25 | 广州晶体科技有限公司 | A kind of cutter head and manufacture method thereof |
| CN103953286B (en) * | 2014-05-19 | 2017-05-10 | 中国有色桂林矿产地质研究院有限公司 | Welded high-matrix diamond core bit and manufacturing method thereof |
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