CN1052907A - Stibiated iron base materials for powder metallurgy - Google Patents
Stibiated iron base materials for powder metallurgy Download PDFInfo
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- CN1052907A CN1052907A CN 89105825 CN89105825A CN1052907A CN 1052907 A CN1052907 A CN 1052907A CN 89105825 CN89105825 CN 89105825 CN 89105825 A CN89105825 A CN 89105825A CN 1052907 A CN1052907 A CN 1052907A
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- powder metallurgy
- iron
- stibiated
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- iron base
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Abstract
A kind of Stibiated iron base materials for powder metallurgy, its Chemical Composition (weight) is: carbon 0.1～2%, antimony 0.1～5%, copper 0～4%, molybdenum 0～4%, nickel 0～4%, chromium 0～2%, and cerium 0～0.5% or lanthanum 0～0.5% or rare earth alloy 0～0.5%, surplus is iron and small amount of impurities.This Stibiated iron base materials for powder metallurgy has higher intensity, higher wear resistance and solidity to corrosion.Volume change is approaching zero behind the sintering, but the precisely control product size.In addition, production cost reduces remarkable in economical benefits significantly than the iron-base powder metallurgy material of elements such as nickeliferous, molybdenum, copper.
Description
The present invention is a kind of Stibiated iron base materials for powder metallurgy.
At present, China's iron-base powder metallurgy material commonly used contains more valuable non-ferrous metals such as copper, nickel, molybdenum, and cost is higher, and intensity and wearing no resistance, and product's dimensional precision is difficult to control.
The object of the present invention is to provide a kind of Stibiated iron base materials for powder metallurgy, because the adding of antimony, take place obviously to shrink after making the goods sintering, and great majority add elements in the iron-base powder metallurgy material, for example copper etc. then makes volume expand.Therefore, change the add-on of antimony, can offset expansion to some extent, obtain a kind of sintering after volume change near zero, accurate in size powder metallurgy product.In addition, antimony improves intensity, wear resistance and the solidity to corrosion of iron-base powder metallurgy material significantly, can also further reduce production costs simultaneously.
Stibiated iron base materials for powder metallurgy provided by the invention, its Chemical Composition are (weight): carbon 0.1～2%, antimony 0.1～5%, copper 0～4%, molybdenum 0～4%, nickel 0～4%, chromium 0～2%, and cerium 0～0.5% or lanthanum 0～0.5% or rare earth alloy 0～0.5%, surplus is iron and small amount of impurities.
What powdered material composition of the present invention was determined the reasons are as follows:
Carbon: in iron, carbon is to adopt the earliest and one of the widest element, and carbon can improve intensity, the hardness of iron-based goods.Fashionable when adding with the graphite form, just can be used as solid lubricant, in addition, graphite adsorbed oil is very capable, makes iron have good antifriction characteristic and self-lubricating property.
Antimony: in certain scope, antimony can form single phase solid solution with iron, thereby strengthens matrix, improves the wear resistance and the solidity to corrosion of matrix, can reduce the sintering temperature of goods simultaneously.
Copper and mickel: the ductility that improves material.
Molybdenum: the hardening capacity that improves material heat treatment.
Chromium: the wear resistance that improves material.
The resemble process of Stibiated iron base materials for powder metallurgy production technique of the present invention and mmaterial commonly used.
The technological process of production of powdered material goods of the present invention is as follows:
Powder ingredients → mixing → compacting → sintering → immersion oil shaping → goods.
If be applied to the structured material aspect, then do not need this operation of immersion oil.
Mix: in powder, add 0.5～1% Zinic stearas, uniform mixing in the mill bucket that stainless steel is made, mixing time was controlled at 2～4 hours.
Compacting: according to the desired product geomery, selected punching block, cold-press moulding under 150～500MPa pressure, for the intensity and the porosity that guarantee goods, pressed density is chosen in 6～7 gram/cubic centimetres.
Sintering: adopt the economic boat charcoal protection sintering that pushes away continuously, sintering temperature is 1030 ℃～1060 ℃, and soaking time is 2.5～3.5 hours, and filler adopts the aluminum oxide powder of roasting in advance.
Shaping: in order to reach certain size, improve surface smoothness, should in suitable scope, shaping handle.
Embodiment:
Sinter Stibiated iron base powder compression of the present invention into a meter machine oil bearing, use proving effect good through the user, table 1 is shown the agricultural machinery ministerial standard of iron-based oil bearing performance requriements, and the performance data of external like product and product of the present invention.
Table 1
Can find out from last table, the physical and mechanical properties of the oil bearing made from antifriction material of the present invention reaches fully and has surpassed the agricultural machinery ministerial standard, with external comparison, also suitable substantially, simultaneously, product size precision height, the yield rate height, production cost descends significantly, and therefore, the present invention has the bigger application value and the market competitiveness.
In sum, mmaterial of the present invention, owing to added cheap antimony, product strength and dimensional precision are obviously improved, and can suitably reduce or not add valuable alloy constituent element, for example copper, nickel, molybdenum etc., its performance index all can reach and surpass corresponding iron-based goods technological standard.Therefore, this material remarkable in economical benefits, competitive power of product is strong.
Claims (2)
1, a kind of Stibiated iron base materials for powder metallurgy is characterized in that containing (weight) carbon 0.1～2%, antimony 0.1～5%, and surplus is iron and small amount of impurities.
2, Stibiated iron base materials for powder metallurgy according to claim 1 is characterized in that containing (weight) copper 0～4%, molybdenum 0～4%, nickel 0～4%, chromium 0～2%, and cerium 0～0.5% or lanthanum 0～0.5% or rare earth alloy 0～0.5%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105825 CN1052907A (en) | 1989-12-23 | 1989-12-23 | Stibiated iron base materials for powder metallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105825 CN1052907A (en) | 1989-12-23 | 1989-12-23 | Stibiated iron base materials for powder metallurgy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1052907A true CN1052907A (en) | 1991-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89105825 Pending CN1052907A (en) | 1989-12-23 | 1989-12-23 | Stibiated iron base materials for powder metallurgy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1052907A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101069927B (en) * | 2006-05-11 | 2012-10-10 | 台耀科技股份有限公司 | Sinter-hardening powder and their sintered compacts |
| CN105937013A (en) * | 2016-05-31 | 2016-09-14 | 同济大学 | Metallurgical powder for high-performance automobile oil pump precise gears and gear preparation method |
| CN108015275A (en) * | 2017-12-27 | 2018-05-11 | 洛阳神佳窑业有限公司 | Novel powder metallurgy material |
| CN108145147A (en) * | 2017-12-26 | 2018-06-12 | 洛阳神佳窑业有限公司 | High-strength powder metallurgy material |
| CN108160985A (en) * | 2017-12-27 | 2018-06-15 | 洛阳神佳窑业有限公司 | A kind of novel powder metallurgy material |
| CN108160986A (en) * | 2017-12-27 | 2018-06-15 | 洛阳神佳窑业有限公司 | A kind of powdered metallurgical material |
| CN108160984A (en) * | 2017-12-27 | 2018-06-15 | 洛阳神佳窑业有限公司 | A kind of powdered metallurgical material |
-
1989
- 1989-12-23 CN CN 89105825 patent/CN1052907A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101069927B (en) * | 2006-05-11 | 2012-10-10 | 台耀科技股份有限公司 | Sinter-hardening powder and their sintered compacts |
| CN105937013A (en) * | 2016-05-31 | 2016-09-14 | 同济大学 | Metallurgical powder for high-performance automobile oil pump precise gears and gear preparation method |
| CN108145147A (en) * | 2017-12-26 | 2018-06-12 | 洛阳神佳窑业有限公司 | High-strength powder metallurgy material |
| CN108015275A (en) * | 2017-12-27 | 2018-05-11 | 洛阳神佳窑业有限公司 | Novel powder metallurgy material |
| CN108160985A (en) * | 2017-12-27 | 2018-06-15 | 洛阳神佳窑业有限公司 | A kind of novel powder metallurgy material |
| CN108160986A (en) * | 2017-12-27 | 2018-06-15 | 洛阳神佳窑业有限公司 | A kind of powdered metallurgical material |
| CN108160984A (en) * | 2017-12-27 | 2018-06-15 | 洛阳神佳窑业有限公司 | A kind of powdered metallurgical material |
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