CN103586473B - A kind of hard Powder metallurgy tool and preparation method thereof - Google Patents
A kind of hard Powder metallurgy tool and preparation method thereof Download PDFInfo
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- CN103586473B CN103586473B CN201310550866.5A CN201310550866A CN103586473B CN 103586473 B CN103586473 B CN 103586473B CN 201310550866 A CN201310550866 A CN 201310550866A CN 103586473 B CN103586473 B CN 103586473B
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Abstract
The invention discloses a kind of hard Powder metallurgy tool, it is characterized in that, be made up of the raw material of following weight portion: bortz powder 60-65, carborundum 10-12, silica 3-4, boron oxide 4-5, alundum (Al2O3) 1-2, lithium nitride 5-6, tin ash 2-3, chromium trioxide 4-5, iron 12-14, tungsten 3-4, chromium 7-8, chlorinated paraffin wax 2-3, decentralized photo 2-3; The present invention adds decentralized photo, and alloy powder is uniformly dispersed, and ensures the uniformity in length and breadth of interiors of products institutional framework, increases wearability, the service life of product is increased; Steady quality of the present invention, hardness is large, not easily occurs phenomenon of rupture, has a extensive future.
Description
Technical field
The present invention relates to field of powder metallurgy, particularly a kind of hard Powder metallurgy tool and preparation method thereof.
Background technology
Powder metallurgy be produce metal dust or with metal dust (or mixture of metal dust and non-metal powder) as raw material, through shaping and sintering, produce the industrial technology of metal material, composite and all kinds goods.At present, PM technique has been widely used in the fields such as traffic, machinery, electronics, Aero-Space, weapons, biology, new forms of energy, information and nuclear industry, becomes one of branch of most development vitality in new material science.PM technique possess significantly energy-conservation, economize the high and series of advantages such as good stability of material, excellent performance, Product Precision, be very suitable for producing in enormous quantities.The cutting tool performance of PM HSS manufacture is better than common high-speed steel, service life is higher than common high-speed steel (general 2 ~ 3 times), at the cutting occasion alternative hard alloy cutter again that impact load is large, therefore PM HSS cutter is very good in the application prospect of tool industry, more and more receives the concern of people.Compared with common high-speed steel tool, PM HSS cutter hardness is higher, toughness better, more wear-resistant, therefore in some application (the processing occasion as high impact-resistant, large resection), PM HSS cutter has the trend replacing comparatively large, easily chipping under the cutting-impact solid carbide of fragility gradually.
Summary of the invention
The object of this invention is to provide a kind of hard Powder metallurgy tool and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
A kind of hard Powder metallurgy tool, is made up of the raw material of following weight portion: bortz powder 60-65, carborundum 10-12, silica 3-4, boron oxide 4-5, alundum (Al2O3) 1-2, lithium nitride 5-6, tin ash 2-3, chromium trioxide 4-5, iron 12-14, tungsten 3-4, chromium 7-8, chlorinated paraffin wax 2-3, decentralized photo 2-3;
Described decentralized photo is made up of the raw material of following weight portion: 5-6, magnesium sulfate 2-3, nano silicon 1-2, N660 carbon black 2-3, MTES 1-2 iron powder 30-40, sodium phosphate trimer 1-2, iron chloride 1-2, feldspar in powder 2-3, sun; Preparation method is by iron powder, sodium phosphate trimer, iron chloride, feldspar in powder, actinolite, magnesium sulfate mixing, grind to form 200-300 order powder, then add MTES and mix, under 10-15Mpa, be pressed into blank, then, calcine 3-4 hour at sending into 920-950 DEG C, after cooling, be ground into 300-400 order powder, mix with other residual components, be heated to 60-70 DEG C, under 1200-1500 rev/min, stir 1-2 hour, to obtain final product.
Hard Powder metallurgy tool of the present invention, be made up of following concrete steps:
(1) alundum (Al2O3), lithium nitride, tin ash, chromium trioxide, iron, tungsten, chromium are mixed with decentralized photo, add in suitable quantity of water, send into ball milling in ball mill, obtain 250-400 order powder, then, spraying dry, oven dry, make bulk at 10-15Mpa pressure, then under nitrogen protection atmosphere 750-800 DEG C carry out sintering 16-18 hour, cross 200-400 mesh sieve by after the crushing material after sintering;
(2) other residual components is mixed;
(3) step (1), (2) material after mixing and stirring 60-90 minute, are loaded mould, are pressed into base at 55-65 DEG C;
(4) pressed compact is placed in sintering furnace, to 800-850 DEG C of condition, sinters 2-3 hour with 6-8 DEG C/min of ramp; Then to 1100-1150 DEG C of condition, sinter 2-3 hour with 5-7 DEG C/min of ramp, in air, slowly cool to room temperature.
The present invention adds decentralized photo, and alloy powder is uniformly dispersed, and ensures the uniformity in length and breadth of interiors of products institutional framework, increases wearability, the service life of product is increased; Steady quality of the present invention, hardness is large, not easily occurs phenomenon of rupture, has a extensive future.
Specific embodiments
Below by instantiation, the present invention is described in detail.
A kind of hard Powder metallurgy tool, is made up of the raw material of following weight portion (kilogram): bortz powder 60, carborundum 10, silica 3, boron oxide 4, alundum (Al2O3) 1, lithium nitride 5, tin ash 2, chromium trioxide 4, iron 12, tungsten 3, chromium 7, chlorinated paraffin wax 2, decentralized photo 2;
Described decentralized photo is made up of the raw material of following weight portion (kilogram): iron powder 30, sodium phosphate trimer 1, iron chloride 1, feldspar in powder 2, sun 5, magnesium sulfate 2, nano silicon 1, N660 carbon black 2, MTES 1; Preparation method is by iron powder, sodium phosphate trimer, iron chloride, feldspar in powder, actinolite, magnesium sulfate mixing, grind to form 200-300 order powder, then add MTES and mix, under 10-15Mpa, be pressed into blank, then, calcine 3-4 hour at sending into 920-950 DEG C, after cooling, be ground into 300-400 order powder, mix with other residual components, be heated to 60-70 DEG C, under 1200-1500 rev/min, stir 1-2 hour, to obtain final product.
Hard Powder metallurgy tool of the present invention, be made up of following concrete steps:
(1) alundum (Al2O3), lithium nitride, tin ash, chromium trioxide, iron, tungsten, chromium are mixed with decentralized photo, add in suitable quantity of water, send into ball milling in ball mill, obtain 250-400 order powder, then, spraying dry, oven dry, make bulk at 10-15Mpa pressure, then under nitrogen protection atmosphere 750-800 DEG C carry out sintering 16-18 hour, cross 200-400 mesh sieve by after the crushing material after sintering;
(2) other residual components is mixed;
(3) step (1), (2) material after mixing and stirring 60-90 minute, are loaded mould, are pressed into base at 55-65 DEG C;
(4) pressed compact is placed in sintering furnace, to 800-850 DEG C of condition, sinters 2-3 hour with 6-8 DEG C/min of ramp; Then to 1100-1150 DEG C of condition, sinter 2-3 hour with 5-7 DEG C/min of ramp, in air, slowly cool to room temperature.
Through detecting, hardness of the present invention can reach HRC55.
Claims (2)
1. a hard Powder metallurgy tool, it is characterized in that, be made up of the raw material of following weight portion: bortz powder 60-65, carborundum 10-12, silica 3-4, boron oxide 4-5, alundum (Al2O3) 1-2, lithium nitride 5-6, tin ash 2-3, chromium trioxide 4-5, iron 12-14, tungsten 3-4, chromium 7-8, chlorinated paraffin wax 2-3, decentralized photo 2-3;
Described decentralized photo is made up of the raw material of following weight portion: 5-6, magnesium sulfate 2-3, nano silicon 1-2, N660 carbon black 2-3, MTES 1-2 iron powder 30-40, sodium phosphate trimer 1-2, iron chloride 1-2, feldspar in powder 2-3, sun; Preparation method is by iron powder, sodium phosphate trimer, iron chloride, feldspar in powder, actinolite, magnesium sulfate mixing, grind to form 200-300 order powder, then add MTES and mix, under 10-15MPa, be pressed into blank, then, calcine 3-4 hour at sending into 920-950 DEG C, after cooling, be ground into 300-400 order powder, mix with other residual components, be heated to 60-70 DEG C, under 1200-1500 rev/min, stir 1-2 hour, to obtain final product.
2. hard Powder metallurgy tool according to claim 1, is characterized in that, be made up of following concrete steps:
(1) alundum (Al2O3), lithium nitride, tin ash, chromium trioxide, iron, tungsten, chromium are mixed with decentralized photo, add in suitable quantity of water, send into ball milling in ball mill, obtain 250-400 order powder, then, spraying dry, oven dry, make bulk at 10-15MPa pressure, then under nitrogen protection atmosphere 750-800 DEG C carry out sintering 16-18 hour, cross 200-400 mesh sieve by after the crushing material after sintering;
(2) other residual components is mixed;
(3) step (1), (2) material after mixing and stirring 60-90 minute, are loaded mould, are pressed into base at 55-65 DEG C;
(4) pressed compact is placed in sintering furnace, to 800-850 DEG C of condition, sinters 2-3 hour with 6-8 DEG C/min of ramp; Then to 1100-1150 DEG C of condition, sinter 2-3 hour with 5-7 DEG C/min of ramp, finally slowly cool to room temperature in atmosphere.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310550866.5A CN103586473B (en) | 2013-11-09 | 2013-11-09 | A kind of hard Powder metallurgy tool and preparation method thereof |
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| CN201310550866.5A CN103586473B (en) | 2013-11-09 | 2013-11-09 | A kind of hard Powder metallurgy tool and preparation method thereof |
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| CN103586473A CN103586473A (en) | 2014-02-19 |
| CN103586473B true CN103586473B (en) | 2016-01-20 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343709A (en) * | 2008-09-08 | 2009-01-14 | 四川大学 | Metal ceramic cutter material and manufacture method |
| JP2010090470A (en) * | 2008-10-10 | 2010-04-22 | Jfe Steel Corp | Iron-based sintered alloy and method for producing the same |
| CN101716780A (en) * | 2009-11-30 | 2010-06-02 | 杭州天石硬质合金有限公司 | Paper punching cutter |
| CN102676941A (en) * | 2012-04-25 | 2012-09-19 | 李小强 | Tungsten carbide particle-reinforced wear-resistant corrosion-resistant stainless steel and preparation method thereof |
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2013
- 2013-11-09 CN CN201310550866.5A patent/CN103586473B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343709A (en) * | 2008-09-08 | 2009-01-14 | 四川大学 | Metal ceramic cutter material and manufacture method |
| JP2010090470A (en) * | 2008-10-10 | 2010-04-22 | Jfe Steel Corp | Iron-based sintered alloy and method for producing the same |
| CN101716780A (en) * | 2009-11-30 | 2010-06-02 | 杭州天石硬质合金有限公司 | Paper punching cutter |
| CN102676941A (en) * | 2012-04-25 | 2012-09-19 | 李小强 | Tungsten carbide particle-reinforced wear-resistant corrosion-resistant stainless steel and preparation method thereof |
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| CN103586473A (en) | 2014-02-19 |
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