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Powder metallurgy abrasion-resistant bearing material and manufacturing method thereof

A wear-resistant bearing and powder metallurgy technology, which is applied in the field of powder metallurgy, can solve problems such as short service life, impact resistance, and insufficient stability of wear resistance, and achieve the effects of excellent tensile strength performance, low environmental pollution, and reasonable formula

Inactive Publication Date: 2014-01-29
WUHU HONGKUN AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing materials for producing wear-resistant bearings mainly use chrome steel, chrome-molybdenum steel, nickel-chrome-molybdenum steel, high-speed steel, stainless steel, etc. Bearings made of such materials have relatively insufficient impact resistance and wear resistance, and their service life is short

Method used

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Embodiment Construction

[0016] The present invention will be described in detail below through specific examples.

[0017] A powder metallurgy wear-resistant bearing material, made of the following raw materials in parts by weight (kg): molybdenum 2.2, titanium 2.2, bismuth 0.3, waste tool steel powder 72, manganese powder 3.4, Sb0.2, Bi0.2, Yb0. 5. Zinc stearate 2, hafnium diboride 0.2, polytetrafluoroethylene 1, additive 1;

[0018] The additive is made of the following raw materials in parts by weight (kg): iron powder 3, kaolin 2, nano-carbon 2, zirconium fluoride 1, alum 2, sodium alginate 3, sodium tripolyphosphate 1, corundum powder 3, Copper sulfate 1, calcium stearate 1, vinyl triethoxysilane 3; the preparation method is to mix iron powder, kaolin, zirconium fluoride, alum, sodium alginate, sodium tripolyphosphate, corundum powder, copper sulfate, Grind it into 200-300 mesh powder, then add vinyltriethoxysilane and mix evenly, press it into a billet at 10-15Mpa, then send it to 920-950℃ for...

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Abstract

The invention discloses a powder metallurgy abrasion-resistant bearing material. The powder metallurgy abrasion-resistant bearing material is characterized by being manufactured from, by weight, 2.2-2.3 parts of molybdenum, 2.2-2.3 parts of titanium, 0.3-0.35 part of bismuth, 72-73 parts of steel powder of waste tools, 3.4-3.5 parts of manganese powder, 0.2-0.4 part of Sb, 0.2-0.3 part of Bi, 0.5-0.8 part of Yb, 2-3 parts of zinc stearate, 0.2-0.4 part of hafnium diboride, 1-2 parts of polytetrafluoroethylene and 1-2 parts of auxiliaries. The powder metallurgy abrasion-resistant bearing material is reasonable in formula, the manufactured bearing material is high in strength and bearing capacity, a manufactured bearing is compact in organization, good in microstructure, very few in pore, and excellent in structural rigidity, hardness, fatigue resistance and tensile strength performance. The powder metallurgy abrasion-resistant bearing material is small in pollution to the environment and simple in production step, and production efficiency is improved.

Description

technical field [0001] The invention relates to the field of powder metallurgy, in particular to a powder metallurgy wear-resistant bearing 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. At present, powder metallurgy technology has been widely used in transportation, machinery, electronics, aerospace, weapons, biology, new energy, information and nuclear industries, and has become one of the most dynamic branches of new material science. Powder metallurgy technology has a series of advantages such as significant energy saving, material saving, excellent performance, high product precision and good stability, and is very suitable for mass production. In addition, some materials and complex...

Claims

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Application Information

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IPC IPC(8): B22F3/16B22F5/00
Inventor 黄浩
Owner WUHU HONGKUN AUTO PARTS
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