CN102994914A - Iron-molybdenum-graphite series high-temperature self-lubricating composite material and preparation method of same - Google Patents
Iron-molybdenum-graphite series high-temperature self-lubricating composite material and preparation method of same Download PDFInfo
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- CN102994914A CN102994914A CN2011102772629A CN201110277262A CN102994914A CN 102994914 A CN102994914 A CN 102994914A CN 2011102772629 A CN2011102772629 A CN 2011102772629A CN 201110277262 A CN201110277262 A CN 201110277262A CN 102994914 A CN102994914 A CN 102994914A
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Abstract
The invention discloses an iron-molybdenum-graphite series high-temperature self-lubricating composite material and a preparation method of the same. The material is prepared by 5%-35% of molybdenum, 3%-12% of nickel, 3%-10% of copper, 1.5%-7% of lead, 0.5%-3% of tin, 2%-8% of graphite, 0.5%-4% of cerium fluoride and the balance of iron through the technologies of mixing, cold press molding and free sintering. The material has excellent friction reduction and wear resistance, oxidation resistance and corrosion resistance, long service life and self-lubricating property at a temperature range from room temperature to 450 DEG C, and is suitable for manufacturing a high-temperature sliding component of the equipment working in high-temperature environment.
Description
Technical field
The present invention relates to a kind of metal matrix high temperature self-lubricating composite material and preparation method thereof.It can be high temperature self-lubricating composite material and preparation method thereof at the iron molybdenum graphite of room temperature to 450 ℃ use that the present invention is specifically related to a kind of.
Background technology
Developing what have excellent wear-resisting lubricity can be to solve building material industry (such as plasterboard dryer, floor tile sinter machine etc.), power station desulfurizer track, use the effective way of friction means at the electric motor of 400 ℃ of lower work etc. for a long time under hot conditions at the metal matrix high temperature self-lubricating composite of room temperature to 450 ℃ use.When adding molybdenum element in iron one graphite material, owing to have duplex structure's (compound between sosoloid and iron molybdenum), physicals and high-temperature mechanical property have been improved.The composite solid lubricating agent that adds soft metal lead, tin and graphite, cerium fluoride makes it have excellent high-temperature wearable lubricity.Such material is used in above-mentioned industry or under the similar operating mode, can reduce even the high temperature lubricating maintenance service of abatement apparatus, alleviates workman's labour intensity and reduces the maintenance cost of equipment, increases work efficiency.Therefore have actual engineering significance and very large market potential.
Summary of the invention
The object of the present invention is to provide a kind of can be high temperature self-lubricating composite material and preparation method thereof at the iron molybdenum graphite of room temperature to 450 ℃ use.
Material of the present invention ℃ has excellent antiwear characteristics and good self-lubricating property in room temperature to 450.
According to purpose of the present invention, the technical scheme that we adopt is as follows:
Iron molybdenum graphite is that high temperature self-lubricating composite material is take iron (Fe) as material matrix, take molybdenum (Mo), nickel (Ni), copper (Cu) as the matrix alloy element, with graphite, cerium fluoride (CeF
2) compounded lubricant that is composited with plumbous (Pb), tin (Sn) for lubricated mutually, adopt batch mixing, coldmoulding, free sintering process manufacturing.
A kind of iron molybdenum graphite is high temperature self-lubricating composite material, it is characterized in that this material is comprised of the iron of molybdenum 5%～35%, nickel 3%～12%, copper 3～10%, lead 1.5%～7%, tin 0.5%～3%, graphite 2～8%, cerium fluoride 0.5%～4% and surplus, by mass percentage.
Material preparation method of the present invention is: press mass percent molybdenum 5%～35%, nickel 3%～12%, copper 3～10%, plumbous 1.5%～7%, tin 0.5%～3%, graphite 2～8%, the iron of cerium fluoride 0.5%～4% and surplus, take by weighing iron powder, molybdenum powder, nickel powder, copper powder, lead powder, glass putty and Graphite Powder 99 and cerium fluoride powder, after placing blender to mix taking-up in 8～10 hours, taking by weighing desired compound packs in the punching block, charged punching block is placed on the oil press, under 500MPa～700MPa pressure, suppress, the demoulding after pressurize 2-5 minute namely forms the product blank.The product blank is placed free sintering oven, and in hydrogen shield atmosphere, with 3～4 ℃ of/minute intensifications, temperature rises to 1090～1110 ℃, is incubated 50～60 minutes; After insulation finishes, naturally cool to room temperature and take out product, directly use or processing are used.
Among the preparation method of the present invention, the purity of iron powder, molybdenum powder, nickel powder, copper powder, lead powder and glass putty is more than or equal to 99%, and granularity is less than 0.076mm.
Among the preparation method of the present invention, the purity of Graphite Powder 99 and cerium fluoride is more than or equal to 99.5%, and granularity is less than 0.050mm.
Material of the present invention has good mechanical property, abrasion resistance, antioxidant property, corrosion-resistant, long lifetime and can realize self-lubricating under room temperature to 450 ℃.Be applicable to make equipment sliding surface bearing or other component of said temperature scope.Material of the present invention is compared with tin-bronze base self-lubricating composite material (patent No.: Zl 99 126582.3), has low cost advantage.
Embodiment
Embodiment 1:
Take by weighing material by table 5 proportioning, mixing in the bicone blender, 8～10 hours time.Take by weighing desired compound and pack in the punching block, charged punching block is placed on the oil press, suppress under 620MPa pressure, pressurize demoulding after 3 minutes namely forms the product blank.The product blank is placed free sintering oven, and in hydrogen shield atmosphere, with 3～4 ℃ of/minute intensifications, temperature rises to 1090 ℃, is incubated 50 minutes.After insulation finishes, freely be cooled to room temperature and take out product.Material property is shown in following table 1 and table 2.
Density, Brinell hardness and the ultimate compression strength of table 1 embodiment 1 described material
Frictional coefficient and the wear rate of table 2 embodiment 1 described material
Embodiment 2:
Take by weighing material by table 5 proportioning, mixing in the bicone blender, 8～10 hours time.Take by weighing desired compound and pack in the punching block, charged punching block is placed on 60 tons of oil presses, suppress under 600MPa pressure, pressurize demoulding after 3 minutes namely forms the product blank.The product blank is placed box free sintering oven, and in hydrogen shield atmosphere, with 3～4 ℃ of/minute intensifications, temperature rises to 1095 ℃, is incubated 50 minutes.After insulation finishes, freely be cooled to room temperature and take out product.It is as shown in table 3 below that material friction is learned performance.
Density, Brinell hardness and the ultimate compression strength of table 3 embodiment 2 described materials
Frictional coefficient and the wear rate of table 4 embodiment 2 described materials
Embodiment 3～7
Table 5 is embodiment 1～7 quality of materials per-cent proportioning and preparation technology parameter.Embodiment 3～7 material preparation methods except the processing parameter difference all the other with embodiment 1.Embodiment 3～7 described materials have good abrasion resistance and can realize self-lubricating under room temperature～450 ℃.
Table 5 embodiment 1～7 quality of materials per-cent proportioning and preparation technology parameter
Claims (4)
1. an iron molybdenum graphite is high temperature self-lubricating composite material, it is characterized in that this material is comprised of the iron of molybdenum 5%～35%, nickel 3%～12%, copper 3～10%, lead 1.5%～7%, tin 0.5%～3%, graphite 2～8%, cerium fluoride 0.5%～4% and surplus, by mass percentage.
2. iron molybdenum graphite as claimed in claim 1 is the preparation method of high temperature self-lubricating composite material, it is characterized in that the method is by mass percent molybdenum 5%～35%, nickel 3%～12%, copper 3～10%, plumbous 1.5%～7%, tin 0.5%～3%, graphite 2～8%, the iron of cerium fluoride 0.5%～4% and surplus, take by weighing iron powder, molybdenum powder, nickel powder, copper powder, lead powder, glass putty and Graphite Powder 99 and cerium fluoride powder, after placing blender to mix taking-up in 8～10 hours, taking by weighing desired compound packs in the punching block, charged punching block is placed on the oil press, under 500MPa～700MPa pressure, suppress, the demoulding after pressurize 2-5 minute namely forms the product blank.The product blank is placed free sintering oven, and in hydrogen shield atmosphere, with 3～4 ℃ of/minute intensifications, temperature rises to 1090～1110 ℃, is incubated 50～60 minutes; After insulation finishes, naturally cool to room temperature and take out product, directly use or processing are used.
3. method as claimed in claim 2 is characterized in that the purity of iron powder, molybdenum powder, nickel powder, copper powder, lead powder and glass putty more than or equal to 99%, and granularity is less than 0.076mm.
4. method as claimed in claim 2 is characterized in that the purity of Graphite Powder 99 and cerium fluoride more than or equal to 99.5%, and granularity is less than 0.050mm.
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| CN201110277262.9A CN102994914B (en) | 2011-09-17 | 2011-09-17 | Iron-molybdenum-graphite series high-temperature self-lubricating composite material and preparation method of same |
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| CN201110277262.9A CN102994914B (en) | 2011-09-17 | 2011-09-17 | Iron-molybdenum-graphite series high-temperature self-lubricating composite material and preparation method of same |
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| CN102994914B CN102994914B (en) | 2015-04-22 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451538A (en) * | 2013-09-12 | 2013-12-18 | 合肥波林新材料有限公司 | High-strength wearproof iron-based powder metallurgy bearing material and preparation method thereof |
| CN103639405A (en) * | 2013-12-03 | 2014-03-19 | 江苏大学 | Metal matrix high temperature self-lubricating composite material and manufacturing method thereof |
| CN105112760A (en) * | 2015-09-28 | 2015-12-02 | 济南大学 | TiAl-based high-temperature self-lubricating alloy material and application thereof |
| CN107365921A (en) * | 2017-06-22 | 2017-11-21 | 中国科学院兰州化学物理研究所 | It is a kind of in room temperature to the 500 DEG C of CuNiSn used alloy based self lubricated composite materials and preparation method thereof |
| CN109207785A (en) * | 2018-10-25 | 2019-01-15 | 四川工程职业技术学院 | A method of high temperature sweating self-lubricating composite is prepared with vanadium titano-magnetite |
| CN109482872A (en) * | 2018-12-28 | 2019-03-19 | 江西洪达自润滑轴承有限公司 | A kind of oil-free plane sliding bearing and preparation method thereof with extremely low coefficient of friction |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451538A (en) * | 2013-09-12 | 2013-12-18 | 合肥波林新材料有限公司 | High-strength wearproof iron-based powder metallurgy bearing material and preparation method thereof |
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| CN103639405A (en) * | 2013-12-03 | 2014-03-19 | 江苏大学 | Metal matrix high temperature self-lubricating composite material and manufacturing method thereof |
| CN105112760A (en) * | 2015-09-28 | 2015-12-02 | 济南大学 | TiAl-based high-temperature self-lubricating alloy material and application thereof |
| CN107365921A (en) * | 2017-06-22 | 2017-11-21 | 中国科学院兰州化学物理研究所 | It is a kind of in room temperature to the 500 DEG C of CuNiSn used alloy based self lubricated composite materials and preparation method thereof |
| CN107365921B (en) * | 2017-06-22 | 2019-02-01 | 中国科学院兰州化学物理研究所 | A kind of CuNiSn alloy based self lubricated composite material and preparation method thereof used in room temperature to 500 DEG C |
| CN109207785A (en) * | 2018-10-25 | 2019-01-15 | 四川工程职业技术学院 | A method of high temperature sweating self-lubricating composite is prepared with vanadium titano-magnetite |
| CN109482872A (en) * | 2018-12-28 | 2019-03-19 | 江西洪达自润滑轴承有限公司 | A kind of oil-free plane sliding bearing and preparation method thereof with extremely low coefficient of friction |
| CN109482872B (en) * | 2018-12-28 | 2019-12-24 | 江西洪达自润滑轴承有限公司 | Oil-free plane sliding bearing with extremely low friction coefficient and preparation method thereof |
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