CN104907554A - Powder material for powder metallurgy, preparation method thereof and application thereof - Google Patents
Powder material for powder metallurgy, preparation method thereof and application thereof Download PDFInfo
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- CN104907554A CN104907554A CN201410090922.6A CN201410090922A CN104907554A CN 104907554 A CN104907554 A CN 104907554A CN 201410090922 A CN201410090922 A CN 201410090922A CN 104907554 A CN104907554 A CN 104907554A
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Abstract
The invention belongs to the field of powder metallurgy parts, and relates to a powder material for powder metallurgy, a preparation method of the powder material for powder metallurgy and application of the powder material for powder metallurgy. The powder material for powder metallurgy comprises, by mass, 0%-8% of Ni, 0%-2% of Mo, 1%-25% of Cu, 0%-8% of Sn, smaller than or equal to 1% of impurities and the balance Fe. The powder material for the high-performance powder metallurgy part is prepared through a diffusion method, and the particle size of powder is smaller than or equal to 100 meshes. A manufacturing method of the powder metallurgy part comprises the steps of powder preparation, pressing and sintering, and therefore the high-performance powder metallurgy part can be manufactured. The manufacturing method is simple in process and high in technical content, the segregation phenomenon of the powder metallurgy part cannot easily happen, the dimensional accuracy is high, and the strength of a sintered body is high. The manufactured powder metallurgy part is particularly applicable to the automobile industry and the oil bearing industry.
Description
Technical field
The invention belongs to powder metallurgical technology, particularly a kind of powder used in metallurgy powder body material and preparation method thereof and application.
Background technology
Powder metallurgy parts are widely used in the fields such as automobile, machinery, chemical industry, electronics, and wherein auto industry is its main users, accounts for 80% of powder metallurgy parts total amount.Along with Domestic Automotive Industry development continuously and healthily, not only increasing to the demand of powder metallurgy parts, and also more and more higher to performance requirement.Current China high-performance iron-based prealloy powder body material mainly relies on external import, which greatly limits its application on powder metallurgy parts, is also unfavorable for the development of China's powder metallurgy industry and auto industry.
The preparation method of iron-based prealloyed powder has mixing method, atomization, diffusion method and mull technique etc.The alloy powder (not adding binding agent) prepared of mechanical mixing due to the density of each element different, because vibrations etc. can cause component segregation and gathering in transport or put procedure.Pre-alloyed powder prepared by atomization is completely alloyed powder end, and alloying level is high, and powder hardness is high, causes formability poor, therefore use is restricted.Pre-alloyed powder homogeneity of ingredients prepared by diffusion method is better than mechanical mixture powder, and owing to possessing alloying, therefore its performance also increases, and has uniform composition, briquettability is good, formability is good, the advantage such as good stability.Mull technique is particularly suitable for the preparation of the pre-alloyed powder that diffusion method can not be adopted to prepare, and reaches the effect preventing powder segregation, and mull technique and diffusion method are the important directions of development.
In recent years, powder production enterprise of China strengthens Innovation Input, obtains very large progress in product stability and new product development etc., with the gap of developed countries just at rapid drop.But in the Application and Development of new product, also there is larger gap, the high speed development demand of China's powder metallurgy can not be met.Therefore, there is in the urgent need to exploitation the high-performance powder body material of independent intellectual property right.
Summary of the invention
The present invention is directed to prior art deficiency, the invention provides a kind of powder used in metallurgy powder body material and preparation method thereof and application.
A kind of powder metallurgy parts powder body material, its composition and each constituent mass percentage composition as follows:
Ni:0% ~ 8%, Mo:0% ~ 2%, Cu:1% ~ 25%, Sn:0% ~ 8%, impurity content≤1%, surplus is Fe.
In described powder body material, the granularity of each component is all not more than 100 orders.
The preparation method of above-mentioned powder metallurgy parts powder body material, adds Ni, Cu, Sn and Mo alloying element in Fe powder in thermal diffusion mode and forms alloy; Namely powder metallurgy parts powder body material is obtained.
Utilize above-mentioned powder body material to prepare the method for powder metallurgy parts, concrete steps are as follows:
(1) in powder metallurgy parts powder body material, add lubricant and graphite, in batch mixer, fully mix 0.5 ~ 2 hour, compressing at 300 ~ 800MPa pressure; Wherein lubricant is 0.5 ~ 1% of powder body material quality, and graphite is 0.2 ~ 2% of powder body material quality;
(2) at 800 DEG C ~ 1150 DEG C temperature, in ammonia destruction furnace reducing atmosphere, 0.5 ~ 1 hour is sintered, i.e. obtained powder metallurgy parts.
Described lubricant is zinc stearate or micro mist wax, and its feed postition is directly add.
Described graphite is flakey, and granularity is-300 orders, and its feed postition is directly add.
In described ammonia destruction furnace reducing atmosphere, the flow of hydrogen is 2.0 ~ 5.0L/min, and the flow of nitrogen protection is 1.0 ~ 6.0L/min.
Beneficial effect of the present invention is: the method flow process is simple, with high content of technology, and the powder metallurgy parts prepared are particularly suitable for automobile, oiliness bearing industry.
Accompanying drawing explanation
The stereoscan photograph of a kind of powder metallurgy parts powder body material of Fig. 1 prepared by embodiment 1.
Fig. 2 is powder metallurgy parts powder body material sintered body metallograph prepared by embodiment 1.
The stereoscan photograph of a kind of powder metallurgy parts powder body material of Fig. 3 prepared by embodiment 2
Embodiment 1
A kind of powder metallurgy parts powder body material, its composition and each constituent mass percentage composition are: Ni:4%, Mo:0.5%, Cu:1.5%, impurity content≤1%, all the other are Fe.
Preparation method is:
(1) in powder metallurgy parts powder body material, add lubricant, graphite, in batch mixer, fully mix 1 hour, compressing at 600MPa pressure; Wherein lubricant is micro mist wax, accounts for 0.8% of powder body material quality, and graphite is 0.8% of powder body material quality;
(2) at 1120 DEG C of temperature, sinter 0.7 hour in ammonolysis craft reducing atmosphere, obtain high-performance powder metallurgy parts.
Fig. 1 is the stereoscan photograph of powder metallurgy parts powder body material powder prepared by the present embodiment, and the surface topography of powder is more coarse as seen from Figure 1.
Fig. 2 is powder metallurgy parts powder body material sintered body metallograph prepared by the present embodiment, there is a large amount of austenite, martensite, bainite and some pearlite, ferrite as seen from Figure 2 in sintered body.
The green density adopting international detection method to measure powder metallurgy parts is: 7.08g/cm
3, hardness is: 24.5(HRC), ballistic work is: 23.5 (J).
Embodiment 2
A kind of powder metallurgy parts powder body material, its composition and each constituent mass percentage composition are: Cu:20%, Sn:3%, impurity content≤1%, all the other are Fe.
Preparation method is:
(1) in powder metallurgy parts powder body material, add lubricant, graphite, in batch mixer, fully mix 1 hour, compressing at 400MPa pressure; Wherein lubricant is zinc stearate, accounts for 1% of powder body material quality, and graphite is 1% of powder body material quality;
(2) at 840 DEG C of temperature, sinter 0.6 hour in ammonolysis craft reducing atmosphere, obtain high-performance powder metallurgy parts.
Fig. 3 is the stereoscan photograph of powder metallurgy parts powder body material powder prepared by the present embodiment, and the surface topography of powder is more coarse as seen from Figure 3.
The green density adopting international detection method to measure powder metallurgy parts oiliness bearing is: 6.85g/cm
3, green strength: 0.25Mpa, crushing strength: 21.5Mpa.
Embodiment 3
A kind of powder metallurgy parts powder body material, its composition and each constituent mass percentage composition are: Cu:1.5%, impurity content≤1%, all the other are Fe.
Preparation method is:
(1) in powder metallurgy parts powder body material, add lubricant, graphite, in batch mixer, fully mix 0.5 hour, compressing at 600MPa pressure; Wherein lubricant is zinc stearate, accounts for 0.8% of powder body material quality, and graphite is 0.6% of powder body material quality;
(2) at 1120 DEG C of temperature, sinter 0.6 hour in ammonolysis craft reducing atmosphere, obtain powder metallurgy parts.
The density adopting international detection method to measure powder metallurgy parts is: 7.06g/cm
3, size changing rate is 0.3%.
Claims (7)
1. a powder metallurgy parts powder body material, is characterized in that, its composition and each constituent mass percentage composition as follows:
Ni:0% ~ 8%, Mo:0% ~ 2%, Cu:1% ~ 25%, Sn:0% ~ 8%, impurity content≤1%, surplus is Fe.
2. powder metallurgy parts powder body material according to claim 1, is characterized in that: in described powder body material, the granularity of each component is all not more than 100 orders.
3. the preparation method of powder metallurgy parts powder body material according to claim 1, is characterized in that, is added in Fe powder by Ni, Cu, Sn and Mo alloying element form alloy in thermal diffusion mode; Namely powder metallurgy parts powder body material is obtained.
4. utilize the powder body material described in claim 1 to prepare the method for powder metallurgy parts, it is characterized in that, concrete steps are as follows:
(1) in powder metallurgy parts powder body material, add lubricant and graphite, in batch mixer, fully mix 0.5 ~ 2 hour, compressing at 300 ~ 800MPa pressure; Wherein lubricant is 0.5 ~ 1% of powder body material quality, and graphite is 0.2 ~ 2% of powder body material quality;
(2) at 800 DEG C ~ 1150 DEG C temperature, in ammonia destruction furnace reducing atmosphere, 0.5 ~ 1 hour is sintered, i.e. obtained powder metallurgy parts.
5. the method preparing powder metallurgy parts according to claim 4, is characterized in that: described lubricant is zinc stearate or micro mist wax, and its feed postition is directly add.
6. the method preparing powder metallurgy parts according to claim 4, is characterized in that: described graphite is flakey, and granularity is-300 orders, and its feed postition is directly add.
7. the method preparing powder metallurgy parts according to claim 4, is characterized in that: in described ammonia destruction furnace reducing atmosphere, the flow of hydrogen is 2.0 ~ 5.0L/min, and the flow of nitrogen protection is 1.0 ~ 6.0L/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410090922.6A CN104907554A (en) | 2014-03-12 | 2014-03-12 | Powder material for powder metallurgy, preparation method thereof and application thereof |
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| CN201410090922.6A CN104907554A (en) | 2014-03-12 | 2014-03-12 | Powder material for powder metallurgy, preparation method thereof and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105695872A (en) * | 2016-02-16 | 2016-06-22 | 浙江恒立粉末冶金有限公司 | Pre-diffusion bonding powder for powder metallurgy, manufacturing method thereof and method for manufacturing oil bearing through pre-diffusion bonding powder |
| CN107663615A (en) * | 2017-09-13 | 2018-02-06 | 益阳益瑞通材料科技有限公司 | A kind of high self-lubricating ferrous alloy of high intensity and preparation method and application |
| CN109482889A (en) * | 2018-11-27 | 2019-03-19 | 湖南英捷高科技有限责任公司 | A kind of material and powder metallurgy preparation technique of motor turning constitutional detail ball bowl |
| CN111051552A (en) * | 2017-09-20 | 2020-04-21 | 大冶美有限公司 | Sintered oil-retaining bearing |
| US11951547B2 (en) * | 2017-10-30 | 2024-04-09 | Tpr Co., Ltd. | Valve guide made of iron-based sintered alloy and method of producing same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4844108A (en) * | 1971-10-12 | 1973-06-25 | ||
| JPS5881954A (en) * | 1981-11-09 | 1983-05-17 | Mitsubishi Metal Corp | High strength iron base sintered alloy excellent in wear resistance and self-lubricating property |
| JPS5923840A (en) * | 1982-07-30 | 1984-02-07 | Kawasaki Steel Corp | Production of high strength sintered material |
| CN1646713A (en) * | 2002-03-29 | 2005-07-27 | 优米科尔公司 | Pre-alloyed bond powders |
| CN1986116A (en) * | 2005-12-19 | 2007-06-27 | 北京有色金属研究总院 | RE-containing prealloy powder |
| CN102325915A (en) * | 2008-12-23 | 2012-01-18 | 霍加纳斯股份有限公司 | A method of producing diffusion alloyed iron or iron-based powder, a diffusion alloyed powder, a composition including the diffusion alloyed powder, and a compacted and sintered part produced from the composition |
-
2014
- 2014-03-12 CN CN201410090922.6A patent/CN104907554A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4844108A (en) * | 1971-10-12 | 1973-06-25 | ||
| JPS5881954A (en) * | 1981-11-09 | 1983-05-17 | Mitsubishi Metal Corp | High strength iron base sintered alloy excellent in wear resistance and self-lubricating property |
| JPS5923840A (en) * | 1982-07-30 | 1984-02-07 | Kawasaki Steel Corp | Production of high strength sintered material |
| CN1646713A (en) * | 2002-03-29 | 2005-07-27 | 优米科尔公司 | Pre-alloyed bond powders |
| CN1986116A (en) * | 2005-12-19 | 2007-06-27 | 北京有色金属研究总院 | RE-containing prealloy powder |
| CN102325915A (en) * | 2008-12-23 | 2012-01-18 | 霍加纳斯股份有限公司 | A method of producing diffusion alloyed iron or iron-based powder, a diffusion alloyed powder, a composition including the diffusion alloyed powder, and a compacted and sintered part produced from the composition |
Non-Patent Citations (1)
| Title |
|---|
| 郭庚辰: "《液相烧结粉末冶金材料》", 31 January 2003, 化学工业出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105695872A (en) * | 2016-02-16 | 2016-06-22 | 浙江恒立粉末冶金有限公司 | Pre-diffusion bonding powder for powder metallurgy, manufacturing method thereof and method for manufacturing oil bearing through pre-diffusion bonding powder |
| CN105695872B (en) * | 2016-02-16 | 2017-07-11 | 浙江恒立粉末冶金有限公司 | A kind of method that oiliness bearing is manufactured for the prediffusion combining powder and its manufacture method of powder metallurgy and using the powder |
| CN107663615A (en) * | 2017-09-13 | 2018-02-06 | 益阳益瑞通材料科技有限公司 | A kind of high self-lubricating ferrous alloy of high intensity and preparation method and application |
| CN107663615B (en) * | 2017-09-13 | 2019-05-03 | 湖南屹林材料技术有限公司 | A kind of high self-lubricating ferrous alloy of high intensity and preparation method and application |
| CN111051552A (en) * | 2017-09-20 | 2020-04-21 | 大冶美有限公司 | Sintered oil-retaining bearing |
| US11951547B2 (en) * | 2017-10-30 | 2024-04-09 | Tpr Co., Ltd. | Valve guide made of iron-based sintered alloy and method of producing same |
| CN109482889A (en) * | 2018-11-27 | 2019-03-19 | 湖南英捷高科技有限责任公司 | A kind of material and powder metallurgy preparation technique of motor turning constitutional detail ball bowl |
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Application publication date: 20150916 |
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