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Ferrum-based powder metallurgy antifriction material and preparation method thereof

An iron-based powder metallurgy and anti-friction material technology, applied in the field of composite materials, can solve the problems of low physical properties and process performance of powder metallurgy anti-friction materials, achieve small friction coefficient, easy parameter control, good electrical conductivity and high temperature thermal conductivity. The effect of stability

Inactive Publication Date: 2015-03-04
SUZHOU NETABHAPE COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the raw material formula and sintering process of related powder metallurgy anti-friction materials in my country are still at a backward stage compared with foreign countries, which leads to low physical and technological properties of powder metallurgy anti-friction materials.
Compared with foreign technology, there is still a big gap

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An iron-based powder metallurgy antifriction material, made of the following raw materials in proportion by weight: 72 parts of mixed iron powder, 5 parts of barium oxide, 3 parts of zinc oxide, 2 parts of metallurgical carbon black, 4 parts of fluorinated graphite, micro 4 parts of wax powder, 3 parts of molybdenum powder, 10 parts of tin powder, 2 parts of manganese sulfide powder and 3 parts of alumina powder. Wherein, the mixed iron powder is formed by mixing carbonyl iron powder and reduced iron powder, the mass percentage of carbonyl iron powder is 45%, and the mass percentage of reduced iron powder is 55%.

[0021] Mixed iron powder is 300 mesh, barium oxide is 200 mesh, zinc oxide is 200 mesh, metallurgical carbon black is 100 mesh, fluorinated graphite is 100 mesh, micro wax powder is 100 mesh, molybdenum powder is 200 mesh, tin powder is 250 mesh mesh, manganese sulfide powder is 200 mesh and alumina powder is 200 mesh.

[0022] Its preparation method is as f...

Embodiment 2

[0028] An iron-based powder metallurgy antifriction material, made of the following raw materials in proportion by weight: 73 parts of mixed iron powder, 6 parts of barium oxide, 4 parts of zinc oxide, 3 parts of metallurgical carbon black, 6 parts of fluorinated graphite, micro 5 parts of wax powder, 4 parts of molybdenum powder, 11 parts of tin powder, 3 parts of manganese sulfide powder and 4 parts of alumina powder. Among them, the mixed iron powder is formed by mixing carbonyl iron powder and reduced iron powder, the mass percentage of carbonyl iron powder is 46%, and the mass percentage of reduced iron powder is 54%.

[0029] Mixed iron powder is 300 mesh, barium oxide is 200 mesh, zinc oxide is 200 mesh, metallurgical carbon black is 100 mesh, fluorinated graphite is 100 mesh, micro wax powder is 100 mesh, molybdenum powder is 200 mesh, tin powder is 250 mesh mesh, manganese sulfide powder is 200 mesh and alumina powder is 200 mesh.

[0030] Its preparation method is a...

Embodiment 3

[0036] An iron-based powder metallurgy antifriction material, made of the following raw materials in proportion by weight: 74 parts of mixed iron powder, 7 parts of barium oxide, 6 parts of zinc oxide, 4 parts of metallurgical carbon black, 7 parts of fluorinated graphite, micro 7 parts of wax powder, 6 parts of molybdenum powder, 13 parts of tin powder, 4 parts of manganese sulfide powder and 5 parts of alumina powder. Among them, the mixed iron powder is formed by mixing carbonyl iron powder and reduced iron powder, the mass percentage of carbonyl iron powder is 47%, and the mass percentage of reduced iron powder is 53%.

[0037] Mixed iron powder is 300 mesh, barium oxide is 200 mesh, zinc oxide is 200 mesh, metallurgical carbon black is 100 mesh, fluorinated graphite is 100 mesh, micro wax powder is 100 mesh, molybdenum powder is 200 mesh, tin powder is 250 mesh mesh, manganese sulfide powder is 200 mesh and alumina powder is 200 mesh.

[0038] Its preparation method is a...

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Abstract

The invention discloses a ferrum-based powder metallurgy antifriction material and a preparation method thereof. The material is prepared from the following raw materials in part by weight: 72 to 75 parts of mixed iron powder, 5 to 8 parts of barium oxide, 3 to 7 parts of zinc oxide, 2 to 5 parts of metallurgical carbon black, 4 to 8 parts of carbon monofluoride, 4 to 8 parts of micronized wax, 3 to 7 parts of molybdenum powder, 10 to 14 parts of tin powder, 2 to 5 parts of manganese sulfide powder and 3 to 6 parts of alumina powder. The preparation method comprises the following steps of mixing, pressing, sintering, shaping and impregnating oil. The antifriction material has the advantages of high strength and hardness, good electrical conductivity and high-temperature heat stability, good lubricating property and small friction coefficient; moreover, the raw materials are easy to obtain, the processing cost is low, the preparation process is simple, parameters are easy to control, the production process is safe and environment-friendly, and the antifriction material is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a composite material, in particular to an iron-based powder metallurgy anti-friction material and a preparation method thereof. Background technique [0002] Powder metallurgy is an industrial technology for producing metal powder or using metal powder (or a mixture of metal powder and non-metal powder) as raw material, forming and sintering to produce metal materials, composite materials and various types of products. Powder metallurgy has unique chemical composition and mechanical and physical properties, which cannot be obtained by traditional casting methods. The use of powder metallurgy technology can directly make porous, semi-dense or fully dense materials and products, such as oil bearings, gears, cams, guide rods, knives, etc., which is a less cutting process. Compared with traditional melting and casting methods, powder metallurgy has the following characteristics: [0003] (1) Powder metallurgy technology can mini...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F3/16C22C32/00C22C33/02
Inventor 刘莉王爽邱晶
Owner SUZHOU NETABHAPE COMPOSITE MATERIALS
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