CN104328343A - Compression-resistance powder metallurgical gear material and preparation method thereof - Google Patents
Compression-resistance powder metallurgical gear material and preparation method thereof Download PDFInfo
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- CN104328343A CN104328343A CN201410566469.1A CN201410566469A CN104328343A CN 104328343 A CN104328343 A CN 104328343A CN 201410566469 A CN201410566469 A CN 201410566469A CN 104328343 A CN104328343 A CN 104328343A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/08—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
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- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Gears, Cams (AREA)
Abstract
The invention belongs to the field of powder metallurgy and discloses a compression-resistance powder metallurgical gear material and a preparation method thereof. The compression-resistance powder metallurgical gear material comprises the following components: 14-29wt% of Si, 12-35wt% of Cu, 2-7wt% of Mn, 0.4-1.7wt% of Ti, 0.6-1.3wt% of P, 0.4-1.1wt% of Y, 1.1-1.9wt% of Co, 0.3-1.4% of Sc and the balance of Fe. The preparation method comprises the following steps: 1, weighing powdered raw materials by weight; 2, mixing the powdered raw materials at a high speed; 3, carrying out vacuum ball-milling on the uniformly mixed metallurgical powder; 4, loading the metallurgical powder raw materials into a mold and performing compression molding; and 5, sintering the compressed metallurgical blank and cooling to obtain the powder metallurgical gear material.
Description
Technical field
The invention belongs to field of powder metallurgy, relate to a kind of mmaterial and preparation method thereof, particularly relate to a kind of measuring body powder metallurgy gear material and preparation method thereof.
Background technology
Powder metallurgy is metallurgical and a branch of Materials science, be manufacture metal-powder and with metal-powder (comprise and be mixed into a small amount of non-metal powder) for raw material, by the industry of shaping, sintering process manufactured materials and goods.Powder Metallurgy Industry is base parts and components production important in mechanical industry.Sintered metal product presses the difference of metal powder base and purposes, be broadly divided into powder metallurgy mechanical parts, friction materials, magneticsubstance, Hardmetal materials etc., wherein the Application Areas of powder metallurgy mechanical parts is wide, demand is large, with high content of technology, be the leading product in Powder Metallurgy Industry.
Adopt powder metallurgical technique can manufacture the various section bars such as plate, band, pipe, silk, and the various part such as gear, sprocket wheel, ratchet shaft sleeve.Many materials hard to tolerate can only be produced with powder metallurgy process.Also has the material of some properties, as the pseudoalloy (copper-tungsten, silver-tungsten, copper-graphite) of mutual undissolved metal or metal and nonmetal composition, this pseudoalloy has high conductivity and high anti-galvanic corrosion stability, is to manufacture the indispensable material of electrical contact goods.For another example, powder metallurgy porous material, can obtain excellent service performance etc. by its voidage of control, pore size.The ultimate compression strength of mmaterial weighs a parameter of mmaterial quality, license notification number is that CN101623759 discloses a kind of mmaterial for brake pad, its ultimate compression strength is at about 37MPa, and the ultimate compression strength of mmaterial need to improve.
Summary of the invention
The technical problem solved: it is comparatively extensive that powder enters the purposes of material in gear manufacture, the ultimate compression strength of the mmaterial prepared is very crucial, the ultimate compression strength of the mmaterial that conventional preparation method prepares is lower, preferably in gear, can not therefore need powder metallurgy gear material of a kind of new high compressive strength and preparation method thereof.
Technical scheme: for above-mentioned technical problem, the invention discloses a kind of measuring body powder metallurgy gear material and preparation method thereof.
Described measuring body powder metallurgy gear material comprises the moiety of following weight:
Si 14wt%-29wt%、
Cu 12wt%-35wt%、
Mn 2wt%-7wt%、
Ti 0.4wt%-1.7wt%、
P 0.6wt%-1.3wt%、
Y 0.4wt%-1.1wt%、
Co 1.1wt%-1.9wt%、
Sc 0.3wt%-1.4wt%、
Surplus is Fe.
Further, the measuring body powder metallurgy gear material of described one, comprises the moiety of following weight:
Si 18wt%-26wt%、
Cu 15wt%-30wt%、
Mn 3wt%-6wt%、
Ti 0.7wt%-1.3wt%、
P 0.9wt%-1.1wt%、
Y 0.6wt%-0.9wt%、
Co 1.3wt%-1.6wt%、
Sc 0.6wt%-1.0wt%、
Surplus is Fe.
Further, the measuring body powder metallurgy gear material of described one, comprises the moiety of following weight:
Si 22wt%、
Cu 24wt%、
Mn 5wt%、
Ti 0.9wt%、
P 1.0wt%、
Y 0.8wt%、
Co 1.5wt%、
Sc 0.8wt%、
Surplus is Fe.
A preparation method for measuring body powder metallurgy gear material, preparation method's step of described measuring body powder metallurgy gear material is as follows:
(1) powder stock is taken by weight, wherein Si is 14wt%-29wt%, Cu to be 12wt%-35wt%, Mn be 2wt%-7wt%,
Ti is 0.4wt%-1.7wt%, P be 0.6wt%-1.3wt%, Y be 0.4wt%-1.1wt%, Co be 1.1wt%-1.9wt%, Sc is 0.3wt%-1.4wt%, surplus is Fe;
(2) high-speed mixing is carried out by the above-mentioned powder stock input high-speed mixer got by weight;
(3) the mixing metallurgical powder ball mill after mixing is carried out vacuum ball milling, ratio of grinding media to material is 40:1, and drum's speed of rotation is 200r/min, and Ball-milling Time is 8h-14h;
(4) be pressed in the metallurgical powder raw material loading mould after ball milling, compressive load per unit area is 780-920kgf/cm
2;
(5), after compression moulding, sintered by the metallurgical blank after compacting, sintering temperature is 910-960 DEG C, and temperature rise rate is 30 DEG C/min, keeps 30min-70min after temperature-stable; Cooling is prepared into measuring body powder metallurgy gear material.
The preparation method of described a kind of measuring body powder metallurgy gear material, further step is as follows:
(1) powder stock is taken by weight, wherein Si is 18wt%-26wt%, Cu to be 15wt%-30wt%, Mn be 3wt%-6wt%,
Ti is 0.7wt%-1.3wt%, P be 0.9wt%-1.1wt%, Y be 0.6wt%-0.9wt%, Co be 1.3wt%-1.6wt%, Sc is 0.6wt%-1.0wt%, surplus is Fe;
(2) high-speed mixing is carried out by the above-mentioned powder stock input high-speed mixer got by weight;
(3) the mixing metallurgical powder ball mill after mixing is carried out vacuum ball milling, ratio of grinding media to material is 40:1, and drum's speed of rotation is 200r/min, and Ball-milling Time is 8h-14h;
(4) be pressed in the metallurgical powder raw material loading mould after ball milling, compressive load per unit area is 780-920kgf/cm
2;
(5), after compression moulding, sintered by the metallurgical blank after compacting, sintering temperature is 910-960 DEG C, and temperature rise rate is 30 DEG C/min, keeps 30min-70min after temperature-stable; Cooling is prepared into measuring body powder metallurgy gear material.
The preparation method of described a kind of measuring body powder metallurgy gear material, in preparation method, Si is 22wt%, Cu be 24wt%, Mn be 5wt%, Ti be 0.9wt%, P be 1.0wt%, Y be 0.8wt%, Co be 1.5wt%, Sc is 0.8wt%, surplus is Fe.
The preparation method of described a kind of measuring body powder metallurgy gear material, in preparation method, Ball-milling Time is 12h.
The preparation method of described a kind of measuring body powder metallurgy gear material, loaded in mould by the metallurgical powder raw material after ball milling in preparation method and be pressed, compressive load per unit area is 900kgf/cm
2.
The preparation method of described a kind of measuring body powder metallurgy gear material, in preparation method, sintering temperature is 940 DEG C, and temperature rise rate is 30 DEG C/min, keeps 60min after temperature-stable.
Beneficial effect: add Co, Y, Sc in powder metallurgy gear material of the present invention, temperature rise rate in sintering process and sintering temperature are optimized, preferred sintering temperature is 940 DEG C, and preferred mmaterial formula: Si is 22wt%, Cu be 24wt%, Mn be 5wt%, Ti be 0.9wt%, P be 1.0wt%, Y be 0.8wt%, Co be 1.5wt%, Sc is 0.8wt%, surplus is Fe.The ultimate compression strength of the powder metallurgy gear material prepared, higher than the powder metallurgy gear material of routine, improves the ultimate compression strength of gear, enhances the performance of powder metallurgy gear material.
Embodiment
Embodiment 1
(1) take powder stock by weight, wherein Si is 29wt%, Cu be 12wt%, Mn be 7wt%, Ti be 1.7wt%, P be 1.3wt%, Y be 1.1wt%, Co be 1.9wt%, Sc is 1.4wt%, surplus is Fe; (2) high-speed mixing is carried out by the above-mentioned powder stock input high-speed mixer got by weight; (3) the mixing metallurgical powder ball mill after mixing is carried out vacuum ball milling, ratio of grinding media to material is 40:1, and drum's speed of rotation is 200r/min, and Ball-milling Time is 8h; (4) be pressed in the metallurgical powder raw material loading mould after ball milling, compressive load per unit area is 920kgf/cm
2; (5), after compression moulding, sintered by the metallurgical blank after compacting, sintering temperature is 910 DEG C, and temperature rise rate is 30 DEG C/min, keeps 70min after temperature-stable; Cooling is prepared into measuring body powder metallurgy gear material.
Embodiment 2
(1) take powder stock by weight, wherein Si is 14wt%, Cu be 35wt%, Mn be 2wt%, Ti be 0.4wt%, P be 0.6wt%, Y be 0.4wt%, Co be 1.1wt%, Sc is 0.3wt%, surplus is Fe; (2) high-speed mixing is carried out by the above-mentioned powder stock input high-speed mixer got by weight; (3) the mixing metallurgical powder ball mill after mixing is carried out vacuum ball milling, ratio of grinding media to material is 40:1, and drum's speed of rotation is 200r/min, and Ball-milling Time is 14h; (4) be pressed in the metallurgical powder raw material loading mould after ball milling, compressive load per unit area is 780kgf/cm
2; (5), after compression moulding, sintered by the metallurgical blank after compacting, sintering temperature is 960 DEG C, and temperature rise rate is 30 DEG C/min, keeps 30min after temperature-stable; Cooling is prepared into measuring body powder metallurgy gear material.
Embodiment 3
(1) take powder stock by weight, wherein Si is 18wt%, Cu be 30wt%, Mn be 6wt%, Ti be 0.7wt%, P be 1.1wt%, Y be 0.9wt%, Co be 1.6wt%, Sc is 1.0wt%, surplus is Fe; (2) high-speed mixing is carried out by the above-mentioned powder stock input high-speed mixer got by weight; (3) the mixing metallurgical powder ball mill after mixing is carried out vacuum ball milling, ratio of grinding media to material is 40:1, and drum's speed of rotation is 200r/min, and Ball-milling Time is 9h; (4) be pressed in the metallurgical powder raw material loading mould after ball milling, compressive load per unit area is 790kgf/cm
2; (5), after compression moulding, sintered by the metallurgical blank after compacting, sintering temperature is 950 DEG C, and temperature rise rate is 30 DEG C/min, keeps 60min after temperature-stable; Cooling is prepared into measuring body powder metallurgy gear material.
Embodiment 4
(1) take powder stock by weight, wherein Si is 26wt%, Cu be 15wt%, Mn be 3wt%, Ti be 1.3wt%, P be 0.9wt%, Y be 0.6wt%, Co be 1.3wt%, Sc is 0.6wt%, surplus is Fe; (2) high-speed mixing is carried out by the above-mentioned powder stock input high-speed mixer got by weight; (3) the mixing metallurgical powder ball mill after mixing is carried out vacuum ball milling, ratio of grinding media to material is 40:1, and drum's speed of rotation is 200r/min, and Ball-milling Time is 12h; (4) be pressed in the metallurgical powder raw material loading mould after ball milling, compressive load per unit area is 910kgf/cm
2; (5), after compression moulding, sintered by the metallurgical blank after compacting, sintering temperature is 925 DEG C, and temperature rise rate is 30 DEG C/min, keeps 40min after temperature-stable; Cooling is prepared into measuring body powder metallurgy gear material.
Embodiment 5
(1) take powder stock by weight, wherein Si is 22wt%, Cu be 24wt%, Mn be 5wt%, Ti be 0.9wt%, P be 1.0wt%, Y be 0.8wt%, Co be 1.5wt%, Sc is 0.8wt%, surplus is Fe; (2) high-speed mixing is carried out by the above-mentioned powder stock input high-speed mixer got by weight; (3) the mixing metallurgical powder ball mill after mixing is carried out vacuum ball milling, ratio of grinding media to material is 40:1, and drum's speed of rotation is 200r/min, and Ball-milling Time is 12h; (4) be pressed in the metallurgical powder raw material loading mould after ball milling, compressive load per unit area is 900kgf/cm
2; (5), after compression moulding, sintered by the metallurgical blank after compacting, sintering temperature is 940 DEG C, and temperature rise rate is 30 DEG C/min, keeps 60min after temperature-stable; Cooling is prepared into measuring body powder metallurgy gear material.
Comparative example 1
(1) take powder stock by weight, wherein Si is 14wt%, Cu be 35wt%, Mn be 2wt%, Ti be 0.4wt%, P is 0.6wt%, surplus is Fe; (2) high-speed mixing is carried out by the above-mentioned powder stock input high-speed mixer got by weight; (3) the mixing metallurgical powder ball mill after mixing is carried out vacuum ball milling, ratio of grinding media to material is 40:1, and drum's speed of rotation is 200r/min, and Ball-milling Time is 14h; (4) be pressed in the metallurgical powder raw material loading mould after ball milling, compressive load per unit area is 780kgf/cm
2; (5), after compression moulding, sintered by the metallurgical blank after compacting, sintering temperature is 960 DEG C, and temperature rise rate is 30 DEG C/min, keeps 30min after temperature-stable; Cooling is prepared into measuring body powder metallurgy gear material.
Comparative example 2
Referenced patent is the mmaterial of CN101623759, comprises the composition of following weight part: copper 55%, tin 2%, zinc 2%, iron 1%, silicon-dioxide 5%, molybdic oxide 4%, aluminium sesquioxide 3%, carbon 6%, nickel 9%, tungsten 7%, plumbous 6%.
The compressive strength determination numerical value of the powder metallurgy gear material of embodiment 1 to 5 and comparative example 1 and 2 is as follows:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example 1 | Comparative example 2 | |
| Ultimate compression strength (MPa) | 62.4 | 60.1 | 67.5 | 69.3 | 77.1 | 50.2 | 37 |
Can draw from the ultimate compression strength numerical value of comparative example and embodiment, after adding Y, Co, Sc in powder metallurgy gear material of the present invention, improve the ultimate compression strength of powder metallurgy gear material, wherein the ultimate compression strength of the powder metallurgy gear material of embodiment 5 is the highest, reaches 77.1MPa.
Claims (9)
1. a measuring body powder metallurgy gear material, is characterized in that, described measuring body powder metallurgy gear material comprises the moiety of following weight:
Si 14wt%-29wt%、
Cu 12wt%-35wt%、
Mn 2wt%-7wt%、
Ti 0.4wt%-1.7wt%、
P 0.6wt%-1.3wt%、
Y 0.4wt%-1.1wt%、
Co 1.1wt%-1.9wt%、
Sc 0.3wt%-1.4wt%、
Surplus is Fe.
2. the measuring body powder metallurgy gear material of one according to claim 1, is characterized in that, described measuring body powder metallurgy gear material comprises the moiety of following weight:
Si 18wt%-26wt%、
Cu 15wt%-30wt%、
Mn 3wt%-6wt%、
Ti 0.7wt%-1.3wt%、
P 0.9wt%-1.1wt%、
Y 0.6wt%-0.9wt%、
Co 1.3wt%-1.6wt%、
Sc 0.6wt%-1.0wt%、
Surplus is Fe.
3. the measuring body powder metallurgy gear material of one according to claim 1, is characterized in that, described measuring body powder metallurgy gear material comprises the moiety of following weight:
Si 22wt%、
Cu 24wt%、
Mn 5wt%、
Ti 0.9wt%、
P 1.0wt%、
Y 0.8wt%、
Co 1.5wt%、
Sc 0.8wt%、
Surplus is Fe.
4. a preparation method for measuring body powder metallurgy gear material, is characterized in that, preparation method's step of described measuring body powder metallurgy gear material is as follows:
(1) take powder stock by weight, wherein Si is 14wt%-29wt%, Cu be 12wt%-35wt%, Mn be 2wt%-7wt%, Ti be 0.4wt%-1.7wt%, P be 0.6wt%-1.3wt%, Y be 0.4wt%-1.1wt%, Co be 1.1wt%-1.9wt%, Sc is 0.3wt%-1.4wt%, surplus is Fe;
(2) high-speed mixing is carried out by the above-mentioned powder stock input high-speed mixer got by weight;
(3) the mixing metallurgical powder ball mill after mixing is carried out vacuum ball milling, ratio of grinding media to material is 40:1, and drum's speed of rotation is 200r/min, and Ball-milling Time is 8h-14h;
(4) be pressed in the metallurgical powder raw material loading mould after ball milling, compressive load per unit area is 780-920kgf/cm
2;
(5), after compression moulding, sintered by the metallurgical blank after compacting, sintering temperature is 910-960 DEG C, and temperature rise rate is 30 DEG C/min, keeps 30min-70min after temperature-stable; Cooling is prepared into measuring body powder metallurgy gear material.
5. the preparation method of a kind of measuring body powder metallurgy gear material according to claim 4, is characterized in that, preparation method's step of described measuring body powder metallurgy gear material is as follows:
(1) take powder stock by weight, wherein Si is 18wt%-26wt%, Cu be 15wt%-30wt%, Mn be 3wt%-6wt%, Ti be 0.7wt%-1.3wt%, P be 0.9wt%-1.1wt%, Y be 0.6wt%-0.9wt%, Co be 1.3wt%-1.6wt%, Sc is 0.6wt%-1.0wt%, surplus is Fe;
(2) high-speed mixing is carried out by the above-mentioned powder stock input high-speed mixer got by weight;
(3) the mixing metallurgical powder ball mill after mixing is carried out vacuum ball milling, ratio of grinding media to material is 40:1, and drum's speed of rotation is 200r/min, and Ball-milling Time is 8h-14h;
(4) be pressed in the metallurgical powder raw material loading mould after ball milling, compressive load per unit area is 780-920kgf/cm
2;
(5), after compression moulding, sintered by the metallurgical blank after compacting, sintering temperature is 910-960 DEG C, and temperature rise rate is 30 DEG C/min, keeps 30min-70min after temperature-stable; Cooling is prepared into measuring body powder metallurgy gear material.
6. the preparation method of a kind of measuring body powder metallurgy gear material according to claim 4, it is characterized in that, in the preparation method of described measuring body powder metallurgy gear material, Si is 22wt%, Cu be 24wt%, Mn be 5wt%, Ti be 0.9wt%, P be 1.0wt%, Y be 0.8wt%, Co be 1.5wt%, Sc is 0.8wt%, surplus is Fe.
7. the preparation method of a kind of measuring body powder metallurgy gear material according to claim 4, is characterized in that, in the preparation method of described measuring body powder metallurgy gear material, Ball-milling Time is 12h.
8. the preparation method of a kind of measuring body powder metallurgy gear material according to claim 4, it is characterized in that, loaded in mould by metallurgical powder raw material after ball milling in the preparation method of described measuring body powder metallurgy gear material and be pressed, compressive load per unit area is 900kgf/cm
2.
9. the preparation method of a kind of measuring body powder metallurgy gear material according to claim 4, it is characterized in that, in the preparation method of described measuring body powder metallurgy gear material, sintering temperature is 940 DEG C, and temperature rise rate is 30 DEG C/min, keeps 60min after temperature-stable.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862590A (en) * | 2015-04-20 | 2015-08-26 | 苏州经贸职业技术学院 | Impact-resistant composite metal material and preparation method thereof |
| CN105154767A (en) * | 2015-08-31 | 2015-12-16 | 苏州莱特复合材料有限公司 | Corrosion-resistant noble metal powder metallurgy composite material and preparation method thereof |
| CN105154750A (en) * | 2015-08-31 | 2015-12-16 | 苏州莱特复合材料有限公司 | Impact-resistant metal composite material for vehicle and preparation method thereof |
| CN107520441A (en) * | 2017-09-04 | 2017-12-29 | 蒋俊 | A kind of powder metallurgical gear material of anti-pressure and abrasion-proof and preparation method thereof |
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| JP2995661B2 (en) * | 1989-10-20 | 1999-12-27 | セイコーインスツルメンツ株式会社 | Manufacturing method of porous cemented carbide |
| WO1994008063A1 (en) * | 1992-10-07 | 1994-04-14 | Buck Robert F | Creep resistant, precipitation-dispersion-strengthened, martensitic stainless steel and method thereof |
| DE202011106778U1 (en) * | 2011-06-21 | 2011-12-05 | Thyssenkrupp Vdm Gmbh | Heat-resistant iron-chromium-aluminum alloy with low chromium evaporation rate and increased heat resistance |
| CN103447641A (en) * | 2013-08-30 | 2013-12-18 | 广西锦新科技有限公司 | Low-speed wire cut electrical discharge machining metal wire and preparation method thereof |
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| CN104862590A (en) * | 2015-04-20 | 2015-08-26 | 苏州经贸职业技术学院 | Impact-resistant composite metal material and preparation method thereof |
| CN105154767A (en) * | 2015-08-31 | 2015-12-16 | 苏州莱特复合材料有限公司 | Corrosion-resistant noble metal powder metallurgy composite material and preparation method thereof |
| CN105154750A (en) * | 2015-08-31 | 2015-12-16 | 苏州莱特复合材料有限公司 | Impact-resistant metal composite material for vehicle and preparation method thereof |
| CN107520441A (en) * | 2017-09-04 | 2017-12-29 | 蒋俊 | A kind of powder metallurgical gear material of anti-pressure and abrasion-proof and preparation method thereof |
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