CN102676928A - Powder metallurgy method - Google Patents
Powder metallurgy method Download PDFInfo
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- CN102676928A CN102676928A CN2012101860858A CN201210186085A CN102676928A CN 102676928 A CN102676928 A CN 102676928A CN 2012101860858 A CN2012101860858 A CN 2012101860858A CN 201210186085 A CN201210186085 A CN 201210186085A CN 102676928 A CN102676928 A CN 102676928A
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Abstract
The invention discloses a powder metallurgy method. A formula is that a component C, a lubricating agent, Cu and Ni are added in basic material powder FSY200.3. By using mass of the basic material powder FSY200.3 as a base number, adding quantity of each component is as follows: 8% of C, 0.6% of lubricating agent, 1.6% of Cu and 2.7% of Ni. Compared with the prior art, the powder metallurgy method has the advantages that special raw materials are adopted for proportioning, and produced products are high in performance indexes, good in gloss and stability, hard to break and the like, long in service life and wide in application range, and can be used for producing gears, inner rotators, outer rotators, output shafts and the like.
Description
Technical field
The present invention relates to a kind of powder metallurgy.
Background technology
Mostly existing powder metallurgical production technique is: stir material-shaping-sintering-Vehicle Processing-thermal 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 product performance quality is lacked guarantee.Because powder metallurgy belongs to particulate state and is shaped, and reduces the number of prescription and when machining, causes the accessory turning face crude easily, influences glossiness, serious appearance easy fracture phenomenon influences product work-ing 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 FSY200.3, increase component C, lubricant, Cu, Ni; The add-on of each component is a radix in the quality of basic material powder FSY200.3, and C is 0.8%, lubricant is 0.6%, Cu is 1.6%, Ni is 2.7%.
Component and the quality percentage composition of said basic material powder FSY200.3 are: C is 0.003%, Si is 0.03%, Mn is 0.09%, surplus is Fe.
Described lubricant is a Zinic stearas.
The finished product technology of above-mentioned powder metallurgy may further comprise the steps:
(1) stirs: above-mentioned powder metallurgy is stirred uniform mixing;
(2) be shaped: mixed uniformly powder material is sent into the forming mill 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 oven, 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) thermal treatment: the work in-process that sinter are placed on the thermal treatment guipure, adopt the heat treatment furnace heating, 850 ℃ ± 10 ℃ of Heating 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 stove tempering at last 1～2 hour, 210 ℃ ± 10 ℃ of tempering temperatures are seen product off again;
(6) vibro-grinding: the product that thermal 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 oven is the net belt type sintering oven.
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 0.6% can make powder metallurgy when the product shaping demoulding, have better lubrication, avoids product stripping to have some setbacks and causes pulling; The C of increase by 0.8% can increase intensity and the hardness behind the product sintering; The Cu of increase by 1.6% makes product Cu in sintering process can fuse between the powder particle gap fully; The Ni of increase by 1.7% can guarantee the durability degree of product in client's use.
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.
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 FSY200.3, increase component C, Zinic stearas, Cu, Ni; The add-on of each component is a radix in the quality of basic material powder FSY200.3, and C is 0.8%, Zinic stearas is 0.6%, Cu is 1.6%, Ni is 2.7%; Wherein in basic material powder FSY200.3 by 100%, its component and quality percentage composition are: C is 0.003%, Si is 0.03%, Mn is 0.09%, 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 FSY200.3, increase the C of 0.8kg, the Zinic stearas of 0.6kg, the Cu of 1.6kg, the Ni of 2.7kg, stir 1.5h, uniform mixing.
(2) be shaped: mixed uniformly powder material is sent into the forming mill 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 oven is given birth to embryo with product and is sintered work in-process into.Sintering furnace temperature: 680 ℃ ± 10 ℃ of minimum temperatures; 1130 ℃ ± 10 ℃ of the highest temperatures, this top 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) thermal treatment: the work in-process that sinter are placed on the thermal treatment guipure, adopt the heat treatment furnace heating, 850 ℃ ± 10 ℃ of Heating 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 stove tempering at last 1～2 hour, 210 ℃ ± 10 ℃ of tempering temperatures are seen product off again.
(6) vibro-grinding: the product that thermal 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 | Sintering hardness | The anti-intensity of thermal treatment tooth |
| Prior art powder metallurgy | HRC58°～69° | 600Kgf～800Kgf |
| Powder metallurgy of the present invention | HRC75°～85° | 1000Kgf～1400Kgf |
Have above-mentioned correlation data visible, powder metallurgy processing procedure product performance index of the present invention is high, and quality product is better.
Claims (3)
1. powder metallurgy; It is characterized in that: in basic material powder FSY200.3, increase component C, lubricant, Cu, Ni; The add-on of each component is a radix in the quality of basic material powder FSY200.3, and C is 0.8%, lubricant is 0.6%, Cu is 1.6%, Ni is 2.7%.
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 FSY200.3 are: C is 0.003%, Si is 0.03%, Mn is 0.09%, surplus is Fe.
3. a kind of powder metallurgy according to claim 1 and 2 is characterized in that: described lubricant is a Zinic stearas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101860858A CN102676928A (en) | 2012-06-07 | 2012-06-07 | Powder metallurgy method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101860858A CN102676928A (en) | 2012-06-07 | 2012-06-07 | Powder metallurgy method |
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| Publication Number | Publication Date |
|---|---|
| CN102676928A true CN102676928A (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101860858A Pending CN102676928A (en) | 2012-06-07 | 2012-06-07 | Powder metallurgy method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101214550A (en) * | 2008-01-04 | 2008-07-09 | 陆海雷 | Method for manufacturing small spiral bevel gear |
| CN101658930A (en) * | 2009-09-03 | 2010-03-03 | 建德市嘉鑫金属粉材有限公司 | Water atomizing steel powder used for high-compressibility sintering hardening and production method thereof |
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2012
- 2012-06-07 CN CN2012101860858A patent/CN102676928A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101214550A (en) * | 2008-01-04 | 2008-07-09 | 陆海雷 | Method for manufacturing small spiral bevel gear |
| CN101658930A (en) * | 2009-09-03 | 2010-03-03 | 建德市嘉鑫金属粉材有限公司 | Water atomizing steel powder used for high-compressibility sintering hardening and production method thereof |
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Application publication date: 20120919 |