CN102921943A - Powder metallurgy mechanical part production process - Google Patents
Powder metallurgy mechanical part production process Download PDFInfo
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- CN102921943A CN102921943A CN2012104224464A CN201210422446A CN102921943A CN 102921943 A CN102921943 A CN 102921943A CN 2012104224464 A CN2012104224464 A CN 2012104224464A CN 201210422446 A CN201210422446 A CN 201210422446A CN 102921943 A CN102921943 A CN 102921943A
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Abstract
The invention discloses a powder metallurgy mechanical part production process. The powder metallurgy mechanical part production process includes the following steps that (1) alloy powder raw materials and additives are weighed, and alloy powders and the additives are mixed to form a mixed material; (2) the mixed material is subjected to die forming, then the mixed material subjected to the die forming is placed in a furnace to be sintered, the sintering temperature is in a range from 1000 DEG C to 1400 DEG C, and the heat preservation is performed for 2 to 4 hours; (3) a sintered mixed material is subjected to cutting process and thermal treatment, and the thermal treatment temperature is maintained in a range from 1000 DEG C to 1200 DEG C to form a crude product; and (4) the crude product subjected to the thermal treatment is impregnated and subjected to surface steam treatment, the steam temperature reaches to 130 DEG C to 150 DEG C, and the lasting time is one to three hours to obtain a finished product part. The powder metallurgy mechanical part production process has the advantages that the steps are simple, the reaction condition is mild, a lubricating agent is added, the thermal treatment effect is good, and the mechanical properties of the part are improved.
Description
Technical field
The present invention relates to a kind of production of powder metallurgy mechanical parts technique.
Background technology
The technical essential of prior powder metallurgy technique finished parts is forming technique and material sintering technology, for the mechanical structure parts complex-shaped, that required precision is high, requirement to forming technique is very high, relatively harsher to the process of thermal treatment condition, but heat treatment can be brought into play the potential of material, improves its mechanical property.Therefore, need to provide a kind of new technical scheme to solve the problems referred to above.
Summary of the invention
The production of powder metallurgy mechanical parts technique that the purpose of this invention is to provide a kind of reaction condition gentleness.
The technical solution used in the present invention:
Production of powder metallurgy mechanical parts technique may further comprise the steps:
A, take by weighing alloy powder raw material and additive, alloy powder and additive are mixed, form batch mixing;
B, batch mixing is carried out die forming, then the batch mixing behind the die forming is put into the stove sintering, sintering temperature 1000-1400 ℃, be incubated 2-4 hour;
C, above-mentioned sintered mix is carried out machining, heat-treat again, heat treatment temperature 1000-1200 ℃, form crude product;
D, with crude product after the heat treatment, flood, surperficial steam treatment, vapor (steam) temperature reach 130-150 ℃, the time is 1-3 hour, gets fabricated part;
Described additive is lubricant and graphite;
Described alloy powder raw material is iron alloy powder.
The weight ratio of described lubricant and graphite is 1:1-3.
Described lubricant is molybdenum disulphide powder.
Advantage of the present invention is: processing step is simple, and reaction condition is gentle, has increased lubricant, and thermal effectiveness is good, has improved the mechanical property of part.
The specific embodiment
Following embodiment only is used for explanation the present invention, but can not limit protection scope of the present invention.
Embodiment 1
Production of powder metallurgy mechanical parts technique may further comprise the steps:
A, take by weighing iron alloy powder raw material and additive, additive is molybdenum disulphide powder and graphite, and the weight ratio of molybdenum disulphide powder and graphite is 1:1, and iron alloy powder and additive are mixed, and forms batch mixing;
B, batch mixing is carried out die forming, then the batch mixing behind the die forming is put into the stove sintering, 1000 ℃ of sintering temperatures are incubated 2 hours;
C, above-mentioned sintered mix is carried out machining, heat-treat, 1000 ℃ of heat treatment temperatures form crude product;
D, with crude product after the heat treatment, flood, surperficial steam treatment, vapor (steam) temperature reach 130 ℃, the time is 1 hour, gets fabricated part.
Embodiment 2
Production of powder metallurgy mechanical parts technique may further comprise the steps:
A, take by weighing iron alloy powder raw material and additive, additive is molybdenum disulphide powder and graphite, and the weight ratio of molybdenum disulphide powder and graphite is 1:2, and iron alloy powder and additive are mixed, and forms batch mixing;
B, batch mixing is carried out die forming, then the batch mixing behind the die forming is put into the stove sintering, 1150 ℃ of sintering temperatures are incubated 3 hours;
C, above-mentioned sintered mix is carried out machining, heat-treat, 1100 ℃ of heat treatment temperatures form crude product;
D, with crude product after the heat treatment, flood, surperficial steam treatment, vapor (steam) temperature reach 140 ℃, the time is 2 hours, gets fabricated part.
Embodiment 3
Production of powder metallurgy mechanical parts technique may further comprise the steps:
A, take by weighing iron alloy powder raw material and additive, additive is molybdenum disulphide powder and graphite, and the weight ratio of molybdenum disulphide powder and graphite is 1:3, and iron alloy powder and additive are mixed, and forms batch mixing;
B, batch mixing is carried out die forming, then the batch mixing behind the die forming is put into the stove sintering, 1400 ℃ of sintering temperatures are incubated 4 hours;
C, above-mentioned sintered mix is carried out machining, heat-treat, 1200 ℃ of heat treatment temperatures form crude product;
D, with crude product after the heat treatment, flood, surperficial steam treatment, vapor (steam) temperature reach 150 ℃, the time is 3 hours, gets fabricated part.
Processing step is simple, and reaction condition is gentle, has increased lubricant, and thermal effectiveness is good, has improved the mechanical property of part.
Claims (3)
1. production of powder metallurgy mechanical parts technique is characterized in that, may further comprise the steps:
A, take by weighing alloy powder raw material and additive, alloy powder and additive are mixed, form batch mixing;
B, batch mixing is carried out die forming, then the batch mixing behind the die forming is put into the stove sintering, sintering temperature 1000-1400 ℃, be incubated 2-4 hour;
C, above-mentioned sintered mix is carried out machining, heat-treat again, heat treatment temperature 1000-1200 ℃, form crude product;
D, with crude product after the heat treatment, flood, surperficial steam treatment, vapor (steam) temperature reach 130-150 ℃, the time is 1-3 hour, gets fabricated part;
Described additive is lubricant and graphite;
Described alloy powder raw material is iron alloy powder.
2. production of powder metallurgy mechanical parts technique according to claim 1, it is characterized in that: the weight ratio of described lubricant and graphite is 1:1-3.
3. production of powder metallurgy mechanical parts technique according to claim 1 and 2, it is characterized in that: described lubricant is molybdenum disulphide powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104224464A CN102921943A (en) | 2012-10-30 | 2012-10-30 | Powder metallurgy mechanical part production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104224464A CN102921943A (en) | 2012-10-30 | 2012-10-30 | Powder metallurgy mechanical part production process |
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| CN102921943A true CN102921943A (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012104224464A Pending CN102921943A (en) | 2012-10-30 | 2012-10-30 | Powder metallurgy mechanical part production process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084577A (en) * | 2014-07-18 | 2014-10-08 | 常熟市迅达粉末冶金有限公司 | Powder metallurgy material |
| CN104148646A (en) * | 2014-08-21 | 2014-11-19 | 宁波市群星粉末冶金有限公司 | Method for manufacturing movable disc of air compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07197101A (en) * | 1993-12-29 | 1995-08-01 | Kobe Steel Ltd | Iron-phosphorus steel powder for powder metallurgy and production of sintered parts |
| CN1266909A (en) * | 2000-04-09 | 2000-09-20 | 中南工业大学 | Method for manufacturing self-lubricating float bearing of turbine booster by powder metallurgy technology |
| CN100467170C (en) * | 2006-05-28 | 2009-03-11 | 揭朝奎 | Weldable sintered metal powder bearing, and its production process |
| CN101927348A (en) * | 2009-06-24 | 2010-12-29 | 东睦新材料集团股份有限公司 | Method for manufacturing pneumatic or electric tool taping block |
| CN102233425A (en) * | 2011-07-22 | 2011-11-09 | 浙江中平粉末冶金有限公司 | Powder metallurgy formula and process |
-
2012
- 2012-10-30 CN CN2012104224464A patent/CN102921943A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07197101A (en) * | 1993-12-29 | 1995-08-01 | Kobe Steel Ltd | Iron-phosphorus steel powder for powder metallurgy and production of sintered parts |
| CN1266909A (en) * | 2000-04-09 | 2000-09-20 | 中南工业大学 | Method for manufacturing self-lubricating float bearing of turbine booster by powder metallurgy technology |
| CN100467170C (en) * | 2006-05-28 | 2009-03-11 | 揭朝奎 | Weldable sintered metal powder bearing, and its production process |
| CN101927348A (en) * | 2009-06-24 | 2010-12-29 | 东睦新材料集团股份有限公司 | Method for manufacturing pneumatic or electric tool taping block |
| CN102233425A (en) * | 2011-07-22 | 2011-11-09 | 浙江中平粉末冶金有限公司 | Powder metallurgy formula and process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084577A (en) * | 2014-07-18 | 2014-10-08 | 常熟市迅达粉末冶金有限公司 | Powder metallurgy material |
| CN104148646A (en) * | 2014-08-21 | 2014-11-19 | 宁波市群星粉末冶金有限公司 | Method for manufacturing movable disc of air compressor |
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Application publication date: 20130213 |