CN102672164A - Powder metallurgy - Google Patents
Powder metallurgy Download PDFInfo
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- CN102672164A CN102672164A CN2012101860928A CN201210186092A CN102672164A CN 102672164 A CN102672164 A CN 102672164A CN 2012101860928 A CN2012101860928 A CN 2012101860928A CN 201210186092 A CN201210186092 A CN 201210186092A CN 102672164 A CN102672164 A CN 102672164A
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Abstract
The invention discloses powder metallurgy which comprises adding components including 0.7% of lubricating agents and 0.3% of MCF-078 into basic raw material powder low-alloy steel powder JDYTAB, wherein the addition of each component is calculated with mass of basic raw material powder low-alloy steel powder JDYTAB serving as a basic number. The powder metallurgy has the advantages of adopting a special raw material ratio so that produced products have high performance index and good glossiness and stability, do not easily break or the like, and is long in service life, wide in application range and suitable for producing gears, internal rotors, external rotors, output shafts and the like.
Description
Technical field
The present invention relates to a kind of powder metallurgy, and this powder metallurgy is manufactured the technology of product.
Background technology
Mostly existing powder metallurgical production technique is: stir material-shaping-sintering-Vehicle Processing-heat treatment-vibro-grinding-operations such as packing.In this kind technology, a lot of companies are in order to reduce cost, and modes such as prescription or minimizing technology are simplified in employing, provide cost savings though simplify prescription, can the properties of product quality is lacked guarantee.Because powder metallurgy belongs to graininess and is shaped, and reduces the number of prescription and when machined, causes the accessory turning face crude easily, influences glossiness, serious appearance easy fracture phenomenon influences product service life.
Summary of the invention
Goal of the invention:, the purpose of this invention is to provide the powder metallurgy that a mass is good, stability is strong, applied widely to the problems referred to above.
Technical scheme: a kind of powder metallurgy; In basic material powder low alloyed steel powder JDYT AB, increase component lubricant, MCF-078; The addition of each component is a radix in the quality of basic material powder low alloyed steel powder JDYT AB, and lubricant is 0.8%, MCF-078 is 0.3%.
Component and the quality percentage composition of said basic material powder low alloyed steel powder JDYT AB are: Ni is 1.9%, Cu is 1.6%, Mo is 0.5%, C is 0.01%, impurity is 0～0.1%, surplus is Fe.
Described lubricant is a zinc stearate.
The finished product technology of above-mentioned a kind of powder metallurgy may further comprise the steps:
(1) stirs: above-mentioned powder metallurgy is stirred, evenly mix;
(2) be shaped: mixed uniformly powder material is sent into the forming machine hopper, suppress product through shaping dies and give birth to embryo;
(3) sintering: product is given birth to embryo put on carbon plate sintering 3.5～4h in sintering furnace, 670 ℃～1140 ℃ of sintering furnace temperature;
(4) Vehicle Processing: by the detail drawing requirement, the part that mould can not be shaped processes with the product that sinters;
(5) heat treatment: the semi-finished product that sinter are placed on the heat treatment guipure, adopt the heat-treatment furnace heating, 850 ℃ ± 10 ℃ of heating-up temperatures; Heat treatment time 1～3 hour gets into You Cao temper fire then, and the oil temperature is below 60 ℃; Take out of through guipure after quenching; Sent into the tempering furnace tempering at last 1～2 hour, 210 ℃ ± 10 ℃ of temperatures are seen product off again;
(6) vibro-grinding: the product that heat treatment is good is put into oscillating mill, adds grind stone, vibrates 30 minutes and gets product;
(7) oil immersion packing: finished product is cleaned oil immersion, packing.
Said sintering furnace is the net belt type sintering furnace.
Said heat-treatment furnace is the net belt type heat-treatment furnace.
Said product is given birth to the embryo once die stamping forming.
In the component and content of powder metallurgy, the lubricant of increase by 0.8% can make powder metallurgy when the product shaping demoulding, have better lubrication, avoids product stripping to have some setbacks and causes pulling; Increasing by 0.3% MCF-078 (cutting agent) and can be the road, back and add and play free machining effect man-hour, mainly is for avoiding because of part is sinter processing, and part has the ripple glaze of similar skin effect phenomenon easily during original powder material production Vehicle Processing, influences part strength; Surface gloss is obviously improved during Vehicle Processing, and recessing intensity obviously improves.
Beneficial effect: compared with prior art, advantage of the present invention is to adopt special proportioning raw materials, makes the product performance index of producing high; Glossiness is good, and good stability is not prone to phenomenons such as fracture; Long service life, applied widely, can be used for producing gear, inner and outer rotors, force-output shaft etc.
The specific embodiment
Below in conjunction with specific embodiment; Further illustrate the present invention; Should understand these embodiment only be used to the present invention is described and be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
A kind of powder metallurgy; In basic material powder low alloyed steel powder JDYT AB, increase component zinc stearate, MCF-078; The addition of each component is a radix in the quality of basic material powder low alloyed steel powder JDYT AB, and zinc stearate is 0.8%, MCF-078 is 0.3%; Wherein in basic material powder low alloyed steel powder JDYT AB by 100%, its component and quality percentage composition are: Ni is 1.9%, Cu is 1.6%, Mo is 0.5%, C is 0.01%, impurity is 0～0.1%, surplus is Fe.
The finished product technology of above-mentioned a kind of powder metallurgy may further comprise the steps:
(1) stirs: in 100kg basic material powder low alloyed steel powder JDYT AB, increase the lubricant of 0.8kg, the MCF-078 of 0.3kg, stir 1.5h, evenly mix.
(2) be shaped: mixed uniformly powder material is sent into the forming machine hopper, suppress product through the shaping dies once-forming and give birth to embryo.
(3) sintering: product is given birth to embryo put on carbon plate, sintering in the net belt type sintering furnace is given birth to embryo with product and is sintered semi-finished product into.Sintering furnace temperature: 680 ℃ ± 10 ℃ of minimum temperatures; 1130 ℃ ± 10 ℃ of the highest temperatures, this maximum temperature is higher than the fusing point of copper, and temperature can slowly melt copper powder wherein by low the rising fully; Thereby fill up gap between the product powder particle, product strength and hardness are increased substantially.It is 3.5～4h from advancing stove to coming out of the stove that product is given birth to embryo.
(4) Vehicle Processing: by the detail drawing requirement, the part that mould can not be shaped processes with the product that sinters.
(5) heat treatment: the semi-finished product that sinter are placed on the heat treatment guipure, adopt the heat-treatment furnace heating, 850 ℃ ± 10 ℃ of heating-up temperatures; Heat treatment time 1～3 hour gets into You Cao temper fire then, and the oil temperature is below 60 ℃; Take out of through guipure after quenching; Sent into the tempering furnace tempering at last 1～2 hour, 210 ℃ ± 10 ℃ of temperatures are seen product off again;
(6) vibro-grinding: the product that heat treatment is good is put into oscillating mill, adds grind stone, vibrate 30 minutes removal surface blots and burr and gets product.
(7) oil immersion packing: finished product is cleaned oil immersion, packing.
Make same force-output shaft gear respectively with powder metallurgy of the present invention and prior art and compare, the product test data of experiment is as shown in the table:
| Produce the powder metallurgy of mechanical axis gear | Recessing glossiness (max=6.3) | Force-output shaft C catching groove tensile strength |
| Prior art powder metallurgy | 5.0～7.8 | 200Kgf～450Kgf |
| Powder metallurgy of the present invention | 1.0～4.0 | 400Kgf～650Kgf |
Have above-mentioned correction data visible, powder metallurgy processing procedure product performance index of the present invention is high, and product quality is better.
Claims (3)
1. powder metallurgy; It is characterized in that: in basic material powder low alloyed steel powder JDYT AB, increase component lubricant, MCF-078; The addition of each component is a radix in the quality of basic material powder low alloyed steel powder JDYT AB, and lubricant is 0.8%, MCF-078 is 0.3%.
2. a kind of powder metallurgy according to claim 1 is characterized in that: component and the quality percentage composition of said basic material powder low alloyed steel powder JDYT AB are: Ni is 1.9%, Cu is 1.6%, Mo is 0.5%, C is 0.01%, impurity is 0～0.1%, surplus is Fe.
3. a kind of powder metallurgy according to claim 1 and 2 is characterized in that: described lubricant is a zinc stearate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101860928A CN102672164A (en) | 2012-06-07 | 2012-06-07 | Powder metallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101860928A CN102672164A (en) | 2012-06-07 | 2012-06-07 | Powder metallurgy |
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| CN102672164A true CN102672164A (en) | 2012-09-19 |
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| CN2012101860928A Pending CN102672164A (en) | 2012-06-07 | 2012-06-07 | Powder metallurgy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008649A (en) * | 2013-01-07 | 2013-04-03 | 鞍钢重型机械有限责任公司 | Mixed powder for electric tool and preparation method thereof |
| CN103831432A (en) * | 2012-11-27 | 2014-06-04 | 安徽省恒宇粉末冶金有限公司 | Automobile power steering pump powder metallurgy inner and outer rotor formula and preparation technology |
| CN108788161A (en) * | 2018-06-25 | 2018-11-13 | 卓尔博（宁波）精密机电股份有限公司 | A kind of highly stressed rotor |
| CN108857276A (en) * | 2018-06-28 | 2018-11-23 | 安徽恒均粉末冶金科技股份有限公司 | Drive sleeve and its manufacturing method |
| CN108953381A (en) * | 2018-06-28 | 2018-12-07 | 安徽恒均粉末冶金科技股份有限公司 | Impeller sleeve and its manufacturing method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831432A (en) * | 2012-11-27 | 2014-06-04 | 安徽省恒宇粉末冶金有限公司 | Automobile power steering pump powder metallurgy inner and outer rotor formula and preparation technology |
| CN103831432B (en) * | 2012-11-27 | 2016-03-23 | 安徽省恒宇粉末冶金有限公司 | Boosting pump for car steering powder metallurgy inner and outer rotors formula and manufacture craft |
| CN103008649A (en) * | 2013-01-07 | 2013-04-03 | 鞍钢重型机械有限责任公司 | Mixed powder for electric tool and preparation method thereof |
| CN103008649B (en) * | 2013-01-07 | 2014-05-07 | 鞍钢重型机械有限责任公司 | Mixed powder for electric tool and preparation method thereof |
| CN108788161A (en) * | 2018-06-25 | 2018-11-13 | 卓尔博（宁波）精密机电股份有限公司 | A kind of highly stressed rotor |
| CN108857276A (en) * | 2018-06-28 | 2018-11-23 | 安徽恒均粉末冶金科技股份有限公司 | Drive sleeve and its manufacturing method |
| CN108953381A (en) * | 2018-06-28 | 2018-12-07 | 安徽恒均粉末冶金科技股份有限公司 | Impeller sleeve and its manufacturing method |
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Application publication date: 20120919 |