High-iron brake pad applying composite wear-resistant material and preparation method of high-iron brake pad

A technology of wear-resistant materials and composite materials, applied in friction linings, mechanical equipment, gear transmission mechanisms, etc., can solve the problems of poor wear resistance and structural strength of brake pads, inability to meet high-speed rail use, frequent replacement, etc. , to achieve the effect of reducing the risk of separation, meeting the requirements of use, and improving safety

Inactive Publication Date: 2022-05-27
振恒(天津)科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing brake pads have poor wear resistance and structural strength, are easily damaged, and are frequently replaced, which cannot meet the needs of high-speed railways that are constantly increasing in speed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A high-speed rail brake pad using composite wear-resistant materials, comprising a steel back, a transition layer of composite wear-resistant materials, and friction materials that are connected in sequence;

[0029] The composite material transition layer is composed of the following raw materials in parts by weight:

[0030] Copper powder 55, iron powder 25, calcium sulfate 2, titanium oxide 2, chromium carbide 3, titanium nitride 3, graphite 2;

[0031] The friction material is made up of the following raw materials in parts by weight:

[0032] Copper powder 25, copper fiber 25, iron powder 20, stainless steel fiber 15, titanium carbide 8, zirconia powder 5, graphite 10, metal sulfide 5, barium sulfate 8, rubber powder 0.5.

[0033] The preparation method of the high-speed rail brake pad using the composite wear-resistant material prepared in this embodiment includes the following steps:

[0034] 1) Using the weighing equipment, weigh the raw materials according to...

Embodiment 2

[0039] A high-speed rail brake pad using composite wear-resistant materials, comprising a steel back, a transition layer of composite wear-resistant materials, and friction materials that are connected in sequence;

[0040] The composite material transition layer is composed of the following raw materials in parts by weight:

[0041] Copper powder 50, iron powder 30, calcium sulfate 1, titanium oxide 1, chromium carbide 1, titanium nitride 1, graphite 3;

[0042] The friction material is made up of the following raw materials in parts by weight:

[0043] Copper powder 25, copper fiber 20, iron powder 25, stainless steel fiber 10, titanium carbide 7, zirconia powder 4, graphite 10, metal sulfide 5, barium sulfate 10, rubber powder 0.8.

[0044] The preparation method of the high-speed rail brake pad using the composite wear-resistant material prepared in this embodiment includes the following steps:

[0045] 1) Using the weighing equipment, weigh the raw materials according t...

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Abstract

The invention relates to a high-iron brake pad applying a composite wear-resistant material and a preparation method. The high-iron brake pad comprises a steel backing, a composite wear-resistant material transition layer and a friction material which are connected in sequence, the composite wear-resistant material is composed of metal powder and inorganic nonmetal powder, and the friction material is composed of, by weight, 15-30 parts of copper powder, 4-29 parts of red copper fibers, 5-30 parts of iron powder, 3-20 parts of stainless steel fibers, 3-10 parts of titanium carbide, 3-8 parts of zirconium oxide powder, 8-20 parts of graphite, 3-6 parts of metal sulfide, 5-15 parts of barium sulfate and 0.1-1 part of rubber powder. According to the high-iron brake pad applying the composite wear-resistant material, the bonding strength between the friction material and the steel backing is improved, the risk that the friction material is separated from the steel backing in the braking process is reduced, the wear resistance of the high-iron brake pad is improved, the strength of the brake pad is high, the safety of the high-iron brake pad is improved, the replacement frequency is reduced, and the service life of the brake pad is prolonged. And the use requirements of the high-iron brake lining can be met.

Description

technical field [0001] The invention relates to the technical field of high-speed rail braking devices, in particular to a high-speed rail brake pad using composite wear-resistant materials and a preparation method. Background technique [0002] With the continuous development of China's economy, my country's railways are also increasing in speed, entering the era of high-speed railways. The braking device of high-speed railway trains is the core technology and key components to ensure the safe operation of high-speed railways, which greatly shortens travel between different cities. Time brings great convenience to people's lives, but at the same time, it also makes the train braking system bear more and more loads, and puts forward more stringent requirements for the braking technology of the train. It is composed of moving brake pads and brake discs, among which the brake pads should be replaced regularly. [0003] However, the existing brake pads have poor wear resistance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02F16D69/04
CPCF16D69/02F16D69/027F16D69/04F16D2200/0008F16D2200/0034F16D2250/0023
Inventor 司云川
Owner 振恒(天津)科技发展有限公司
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