Copper-based powder metallurgy antifriction material and preparation method thereof

A technology of powder metallurgy and friction materials, which is applied in the field of copper-based powder metallurgy friction materials and its preparation, can solve the problem of low physical and process performance of powder metallurgy anti-friction materials, low density, hardness, compressive strength and resistance of powder metallurgy friction materials. The comprehensive performance of bending strength, friction coefficient and wear amount is poor, so as to achieve the effect of good seizure resistance, fast transmission speed and high friction coefficient

Active Publication Date: 2015-03-04
TANGSHAN ZHENGFENG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the density of its powder metallurgy friction material is small, and the comprehensive performance of hardness, compressive strength, bending strength, friction coefficient and wear amount is poor
However, the raw material formula and sintering process of powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A copper-based powder metallurgy friction material made of the following raw materials in parts by weight: 60 parts of copper powder, 6 parts of iron powder, 3 parts of silicon carbide powder, 3 parts of manganese sulfide powder, 4 parts of zirconium corundum powder, graphite powder 10 parts, 1 part of nickel powder, 2 parts of cobalt powder, 2 parts of alumina powder, 2 parts of potassium feldspar powder, 1 part of silica powder.

[0023] Copper powder is 350 mesh, iron powder is 300 mesh, nickel powder is 250 mesh, cobalt powder is 300 mesh, and alumina powder is 300 mesh.

[0024] Silicon carbide powder, manganese sulfide powder, zirconium corundum powder, graphite powder, potash feldspar powder and silica powder are all 60 meshes.

[0025] The preparation method is as follows:

[0026] In the first step, the ingredients and the mixture are weighed according to the ratio of the raw materials, and the powders of each component are mixed uniformly; in the second step, the mixt...

Embodiment 2

[0029] A copper-based powder metallurgy friction material, made of raw materials in the following parts by weight: 61 parts of copper powder, 7 parts of iron powder, 4 parts of silicon carbide powder, 4 parts of manganese sulfide powder, 5 parts of zirconium corundum powder, graphite powder 11 parts, 2 parts nickel powder, 3 parts cobalt powder, 3 parts alumina powder, 3 parts potassium feldspar powder, 2 parts silica powder.

[0030] Copper powder is 350 mesh, iron powder is 300 mesh, nickel powder is 250 mesh, cobalt powder is 300 mesh, and alumina powder is 300 mesh.

[0031] Silicon carbide powder, manganese sulfide powder, zirconium corundum powder, graphite powder, potash feldspar powder and silica powder are all 70 meshes.

[0032] The preparation method is as follows:

[0033] In the first step, the ingredients and the mixture are weighed according to the ratio of the raw materials, and the powders of each component are mixed uniformly; in the second step, the mixture is press...

Embodiment 3

[0036] A copper-based powder metallurgy friction material made of raw materials with the following parts by weight: 64 parts of copper powder, 6-10 parts of iron powder, 6 parts of silicon carbide powder, 6 parts of manganese sulfide powder, 7 parts of zirconium corundum powder, 14 parts of graphite powder, 4 parts of nickel powder, 5 parts of cobalt powder, 5 parts of alumina powder, 5 parts of potassium feldspar powder, 4 parts of silicon powder.

[0037] Copper powder is 350 mesh, iron powder is 300 mesh, nickel powder is 250 mesh, cobalt powder is 300 mesh, and alumina powder is 300 mesh.

[0038] Silicon carbide powder, manganese sulfide powder, zirconium corundum powder, graphite powder, potash feldspar powder and silica powder are all 80 meshes.

[0039] The preparation method is as follows:

[0040] In the first step, the ingredients and the mixture are weighed according to the ratio of the raw materials, and the powders of each component are mixed uniformly; in the second ste...

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Abstract

The invention discloses a copper-based powder metallurgy antifriction material and a preparation method thereof. The material is prepared from the following raw materials in part by weight: 60 to 64 parts of copper powder, 6 to 10 parts of iron powder, 3 to 6 parts of carborundum powder, 3 to 6 parts of manganese sulfide powder, 4 to 7 parts of zirconium corundum powder, 10 to 14 parts of graphite powder, 1 to 4 parts of nickle powder, 2 to 5 parts of cobalt powder, 2 to 5 parts of alumina powder, 2 to 5 parts of feldspar powder and 1 to 4 parts of silica powder. The preparation method comprises the following steps of preparing and mixing the raw materials, pressing for forming, sintering and cooling. The copper-based powder metallurgy antifriction material prepared by the method is high in friction coefficient, can quickly absorb kinetic energy and brake, is high in transmission speed and low in abrasion, is high in strength, high temperature resistant and good in thermal conductivity, and is good in anti-seizure property, corrosion resistant, and slightly influenced by grease and damp.

Description

technical field [0001] The invention relates to a composite material, in particular to a copper-based powder metallurgy 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 minimize...

Claims

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Application Information

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IPC IPC(8): B22F1/00C22C32/00C22C9/00C22C1/05
Inventor 刘莉王爽邱晶
Owner TANGSHAN ZHENGFENG IRON & STEEL CO LTD
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