CN103710623A - Spiral nut for powder metallurgy pneumatic rock drill and machining process thereof - Google Patents
Spiral nut for powder metallurgy pneumatic rock drill and machining process thereof Download PDFInfo
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- CN103710623A CN103710623A CN201410015770.3A CN201410015770A CN103710623A CN 103710623 A CN103710623 A CN 103710623A CN 201410015770 A CN201410015770 A CN 201410015770A CN 103710623 A CN103710623 A CN 103710623A
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- powder metallurgy
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- rock drill
- pneumatic drill
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Abstract
The invention relates to a spiral nut for a powder metallurgy pneumatic rock drill and a machining process thereof. A powder metallurgy iron-based alloy consists of the following raw materials by weight percent: 0.6-1.5 percent of C, 2-6 percent of Ni, 0.5-2 percent of Mo, 1-4 percent of Cu and the balance being Fe. The process comprises the following steps: uniformly mixing the powder metallurgy raw materials in a mixing machine according to a mixture ratio, and pressing by using a powder metallurgy press; performing high-temperature sintering at the temperature of 1,150-1,120 DEG C, and machining an outer thread to obtain the spiral nut for the powder metallurgy pneumatic rock drill. By adopting the machining process, the process flow is simplified, and machining procedures are reduced. The conventional tin-phosphor bronze is replaced by the powder metallurgy iron-based alloy raw materials, so that non-ferrous metals are saved, and the cost is reduced.
Description
Technical field
The present invention relates to a kind of metallic substance and complete processing thereof, specifically a kind of powder metallurgy pneumatic drill rifle nut and complete processing thereof.
Background technology
Pneumatic drill rifle nut is vital part in pneumatic drill, plays the effect that turns pricker.The processing of life-time service tin-phosphor bronze, it has high mechanical strength, wear-resistant withstand voltage, self-lubricating property.Owing to being running stores, cause the waste of a large amount of non-ferrous metals.Up to now, also do not utilize powder metallurgy to prepare the bibliographical information of pneumatic drill rifle nut.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, provides a kind of composition reasonable, and manufacturing procedure is simple, there is high mechanical strength, wear-resistant withstand voltage, self-lubricating property, hardness can meet powder metallurgy pneumatic drill rifle nut and the complete processing thereof of service requirements.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of powder metallurgy pneumatic drill rifle nut, it is characterized in that: the composition of its powder metallurgical ferrous alloy raw material (% by weight) is: C 0.6-1.5, Ni 2-6, Mo 0.5-2, Cu 1-4, surplus Fe.
The complete processing of the above-mentioned powder metallurgy pneumatic drill of the present invention rifle nut, is characterized in that: first by proportioning, powder metallurgy raw material is mixed in mixer, then use powder metallurgy press press forming, its blank density is 6.9-7.3g/cm
3; High temperature sintering then, sintering temperature 1150-1120 ° of C, sintering time 25 minutes; Use meshbeltfurnace thermal treatment, quenching temperature 830-840 ° of C, soaking time 1.5 hours; Tempering adopts the low-temperaturetempering of 180 ° of C, is incubated 2 hours; Then machining outside screw obtains powder metallurgy pneumatic drill rifle nut.
Product structure of the present invention is simple, forms rationally.It utilizes the complete processing of powder metallurgy by rifle nut internal spline once-forming, no longer needs broaching machine to draw, and has simplified technical process, has reduced machining order.Use the existing tin-phosphor bronze of powder metallurgical ferrous alloy raw material substitution, save non-ferrous metal, reduced cost.Product performance meet powder metallurgy material standard, and hardness is identical with tin-phosphor bronze, can not cause heavy wear to the rifle bar being used in conjunction with it, and have significantly and improve work-ing life than the copper rifle nut using on market.Easily realize stable production in enormous quantities.
Embodiment
A powder metallurgy pneumatic drill rifle nut, the composition of its powder metallurgical ferrous alloy raw material (% by weight) is: C 0.6-1.5, Ni 2-6, Mo 0.5-2, Cu 1-4, surplus Fe.
The complete processing of the above-mentioned powder metallurgy pneumatic drill of the present invention rifle nut, first it mix powder metallurgy raw material by proportioning in mixer, then uses powder metallurgy press press forming, and its blank density is 6.9-7.3g/cm
3; High temperature sintering then, sintering temperature 1150-1120 ° of C, sintering time 25 minutes; Use meshbeltfurnace thermal treatment, quenching temperature 830-840 ° of C, soaking time 1.5 hours; Tempering adopts the low-temperaturetempering of 180 ° of C, is incubated 2 hours; Then machining outside screw obtains powder metallurgy pneumatic drill rifle nut.
Product structure of the present invention is simple, forms rationally.It utilizes the complete processing of powder metallurgy by rifle nut internal spline once-forming, no longer needs broaching machine to draw, and has simplified technical process, has reduced machining order.Use the existing tin-phosphor bronze of powder metallurgical ferrous alloy raw material substitution, save non-ferrous metal, reduced cost.Product performance meet powder metallurgy material standard, and hardness is identical with tin-phosphor bronze, can not cause heavy wear to the rifle bar being used in conjunction with it, and have significantly and improve work-ing life than the copper rifle nut using on market.Easily realize stable production in enormous quantities.
Claims (2)
1. a powder metallurgy pneumatic drill rifle nut, is characterized in that: the composition of its powder metallurgical ferrous alloy raw material (% by weight) is: C 0.6-1.5, Ni 2-6, Mo 0.5-2, Cu 1-4, surplus Fe.
2. a complete processing for powder metallurgy pneumatic drill rifle nut described in claim 1, is characterized in that: first by proportioning, powder metallurgy raw material is mixed in mixer, then use powder metallurgy press press forming, its blank density is 6.9-7.3g/cm
3; High temperature sintering then, sintering temperature 1150-1120 ° of C, sintering time 25 minutes; Use meshbeltfurnace thermal treatment, quenching temperature 830-840 ° of C, soaking time 1.5 hours; Tempering adopts the low-temperaturetempering of 180 ° of C, is incubated 2 hours; Then machining outside screw obtains powder metallurgy pneumatic drill rifle nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410015770.3A CN103710623A (en) | 2014-01-14 | 2014-01-14 | Spiral nut for powder metallurgy pneumatic rock drill and machining process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410015770.3A CN103710623A (en) | 2014-01-14 | 2014-01-14 | Spiral nut for powder metallurgy pneumatic rock drill and machining process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103710623A true CN103710623A (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410015770.3A Pending CN103710623A (en) | 2014-01-14 | 2014-01-14 | Spiral nut for powder metallurgy pneumatic rock drill and machining process thereof |
Country Status (1)
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| CN (1) | CN103710623A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073723A (en) * | 2014-06-27 | 2014-10-01 | 山东威达粉末冶金有限公司 | Powder metallurgy material for manufacturing high-density part and processing technology thereof |
| CN104827039A (en) * | 2015-06-03 | 2015-08-12 | 山东威达粉末冶金有限公司 | Powder metallurgy pneumatic rock drill spiral nut and machining technology thereof |
| CN105200322A (en) * | 2015-10-28 | 2015-12-30 | 江阴天润粉末冶金有限公司 | High-strength automobile part powder metallurgy component and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0633101A (en) * | 1992-07-14 | 1994-02-08 | Kobe Steel Ltd | Production of high-strength alloy steel powder for powder metallurgy |
| CN1528547A (en) * | 2003-09-28 | 2004-09-15 | 海安县鹰球集团有限公司 | Powder metallurgy internal hilical gear, and its manufacturing method and die using same method |
| CN101107376A (en) * | 2005-01-31 | 2008-01-16 | 株式会社小松制作所 | Sintered material, iron-based sintered sliding material and process for producing the same, sliding member and process for producing the same, and connecting apparatus |
| CN101402138A (en) * | 2008-11-05 | 2009-04-08 | 韶关市富洋粉末冶金有限公司 | Powder alloy smithing float grease seal ring with upper and lower double-layer and method of producing the same |
| CN101497130A (en) * | 2009-03-09 | 2009-08-05 | 田贻华 | 45-degree spiral beveled wheel with powder metallurgy technique and mold for manufacturing the gear |
-
2014
- 2014-01-14 CN CN201410015770.3A patent/CN103710623A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0633101A (en) * | 1992-07-14 | 1994-02-08 | Kobe Steel Ltd | Production of high-strength alloy steel powder for powder metallurgy |
| CN1528547A (en) * | 2003-09-28 | 2004-09-15 | 海安县鹰球集团有限公司 | Powder metallurgy internal hilical gear, and its manufacturing method and die using same method |
| CN101107376A (en) * | 2005-01-31 | 2008-01-16 | 株式会社小松制作所 | Sintered material, iron-based sintered sliding material and process for producing the same, sliding member and process for producing the same, and connecting apparatus |
| CN101402138A (en) * | 2008-11-05 | 2009-04-08 | 韶关市富洋粉末冶金有限公司 | Powder alloy smithing float grease seal ring with upper and lower double-layer and method of producing the same |
| CN101497130A (en) * | 2009-03-09 | 2009-08-05 | 田贻华 | 45-degree spiral beveled wheel with powder metallurgy technique and mold for manufacturing the gear |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073723A (en) * | 2014-06-27 | 2014-10-01 | 山东威达粉末冶金有限公司 | Powder metallurgy material for manufacturing high-density part and processing technology thereof |
| CN104827039A (en) * | 2015-06-03 | 2015-08-12 | 山东威达粉末冶金有限公司 | Powder metallurgy pneumatic rock drill spiral nut and machining technology thereof |
| CN105200322A (en) * | 2015-10-28 | 2015-12-30 | 江阴天润粉末冶金有限公司 | High-strength automobile part powder metallurgy component and preparation method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140409 |