Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of iron-based powder metallurgy friction material and preparation method thereof

An iron-based powder metallurgy and friction material technology, which is applied in the field of composite materials, can solve problems such as poor heat resistance coefficient, high wear rate, and reduced brake service life, and achieve good anti-seizure, high friction coefficient, and fast transmission speed. Effect

Inactive Publication Date: 2016-06-08
ZHENGZHOU UNIVERSITY OF AERONAUTICS
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the iron base has slightly higher hardness, strength and friction coefficient than the copper base, the allowable working specific pressure and surface instantaneous temperature are also higher; but the heat resistance coefficient is poor and the wear rate is high
If the wear rate is too large, the service life of the brake will be reduced; if the heat resistance coefficient is low, it will easily cause the friction material to be burned, the product will be damaged, and its performance will be lost.
However, the raw material formula and sintering process of 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An iron-based powder metallurgy friction material, made of the following raw materials in proportion by weight: 60 parts of iron powder, 6 parts of tin powder, 3 parts of silicon carbide powder, 3 parts of molybdenum dioxide powder, 4 parts of zirconium corundum powder, quartz 10 parts of sand powder, 1 part of zirconia powder, 2 parts of cobalt powder, 2 parts of alumina powder, 2 parts of potassium feldspar powder, and 1 part of copper powder.

[0022] Iron powder is 350 mesh, tin powder is 300 mesh, zirconia powder is 250 mesh, cobalt powder is 300 mesh, alumina powder is 300 mesh and copper powder is 300 mesh.

[0023] Silicon carbide powder, molybdenum dioxide powder, zirconium corundum powder, quartz sand powder and potassium feldspar powder are all 60 mesh.

[0024] The preparation method is as follows:

[0025] The first step is batching and mixing. The raw materials are weighed according to the ratio, and the powders of each component are mixed evenly; the sec...

Embodiment 2

[0028] An iron-based powder metallurgy friction material, made of the following raw materials in proportion by weight: 61 parts of iron powder, 7 parts of tin powder, 4 parts of silicon carbide powder, 4 parts of molybdenum dioxide powder, 5 parts of zirconium corundum powder, quartz 11 parts of sand powder, 2 parts of zirconia powder, 3 parts of cobalt powder, 3 parts of alumina powder, 3 parts of potassium feldspar powder, and 2 parts of copper powder.

[0029] Iron powder is 350 mesh, tin powder is 300 mesh, zirconia powder is 250 mesh, cobalt powder is 300 mesh, alumina powder is 300 mesh and copper powder is 300 mesh.

[0030] Silicon carbide powder, molybdenum dioxide powder, zirconium corundum powder, quartz sand powder and potassium feldspar powder are all 70 mesh.

[0031] The preparation method is as follows:

[0032] The first step is batching and mixing. The raw materials are weighed according to the ratio, and the powders of each component are mixed evenly; the s...

Embodiment 3

[0035]An iron-based powder metallurgy friction material, made of the following raw materials in proportion by weight: 64 parts of iron powder, 6-10 parts of tin powder, 6 parts of silicon carbide powder, 6 parts of molybdenum dioxide powder, and 7 parts of zirconium corundum powder , 14 parts of quartz sand powder, 4 parts of zirconia powder, 5 parts of cobalt powder, 5 parts of alumina powder, 5 parts of potassium feldspar powder, and 4 parts of copper powder.

[0036] Iron powder is 350 mesh, tin powder is 300 mesh, zirconia powder is 250 mesh, cobalt powder is 300 mesh, alumina powder is 300 mesh and copper powder is 300 mesh.

[0037] Silicon carbide powder, molybdenum dioxide powder, zirconium corundum powder, quartz sand powder and potassium feldspar powder are all 80 mesh.

[0038] The preparation method is as follows:

[0039] The first step is batching and mixing. The raw materials are weighed according to the ratio, and the powders of each component are mixed evenly...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
compressive strengthaaaaaaaaaa
densityaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses an iron-based powder metallurgy friction material and a preparation method thereof. The material is made of the following raw materials in proportion by weight: 60-64 parts of iron powder, 6-10 parts of tin powder, 3-6 parts of silicon carbide powder, 3-6 parts of molybdenum dioxide powder, 4-7 parts of zirconium corundum powder 10-14 parts of quartz sand powder, 1-4 parts of zirconia powder, 2-5 parts of cobalt powder, 2-5 parts of alumina powder, 2-5 parts of potassium feldspar powder, and 1-4 parts of copper powder. The preparation method includes batching and mixing, pressing, sintering and cooling. The iron-based powder metallurgy friction material prepared by this method has a high friction coefficient, can quickly absorb kinetic energy, has fast braking and transmission speeds, and has low wear; it has high strength, high temperature resistance, and good thermal conductivity; it has good seizure resistance and corrosion resistance. Less affected by grease and moisture.

Description

technical field [0001] The invention relates to a composite material, in particular to an iron-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 t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F3/16C22C33/02C22C38/16
Inventor 王秀丽魏永辉魏永强李慧莹蒋志强赵怡赵辉
Owner ZHENGZHOU UNIVERSITY OF AERONAUTICS