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High speed disc type brake pad pottery friction body and method for producing same

A technology of brake pad ceramic type and friction body, which is applied in the direction of friction linings, mechanical equipment, etc., can solve the problems of reduced friction performance, shortened life, increased wear, etc., and achieves improved wear resistance, improved stability, and wear resistance. sex enhancing effect

Inactive Publication Date: 2009-03-11
向兴碧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the condition of high speed of 200 km / h and heavy load of 200 tons, its friction performance will decrease, wear will increase, and its life will be shortened.

Method used

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  • High speed disc type brake pad pottery friction body and method for producing same
  • High speed disc type brake pad pottery friction body and method for producing same
  • High speed disc type brake pad pottery friction body and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] It includes a tube 1 with many grooves on the outer surface and an anti-friction body 2 pressed and sintered with various wear-resistant powder materials in the tube 1 with many grooves on the outer surface. A wear-resistant powdery material formula is:

[0059] 4.0% ferrochromium powder, 1.0% ferromolybdenum powder, 2.0% copper powder,

[0060] Graphite powder 8.0%, molybdenum disulfide powder 4.0%, molybdenum disilicide powder 4.0%,

[0061] Lead oxide powder 3.0%, lead powder 3.0%, mullite plus silicon carbide powder 4.0%,

[0062] The balance is iron powder; the formula of mullite plus silicon carbide powder is, by weight percentage, 70% of mullite powder and 30% of silicon carbide powder.

[0063] The preparation method of the high-speed disc brake ceramic friction body in this embodiment includes the following steps:

[0064] (1), material selection: take the following materials according to the formula,

[0065] Ferrochrome powder (Cr-Fe): Fe Cr167c6.0; (prov...

Embodiment 2

[0081] It includes a tube 1 with many grooves on the outer surface and an anti-friction body 2 pressed and sintered with various wear-resistant powder materials in the tube 1 with many grooves on the outer surface. A wear-resistant powdery material formula is:

[0082] 4.0% ferrochromium powder, 0.5% ferromolybdenum powder, 3.0% copper powder,

[0083] Graphite powder 8.0%, molybdenum disulfide powder 2.0%, molybdenum disilicide powder 2.0%,

[0084] Lead oxide powder 2.0%, lead powder 4.0%, mullite plus silicon carbide powder 15.0%,

[0085] The balance is iron powder; the formula of mullite plus silicon carbide powder is, by weight percentage, 70% of mullite powder and 30% of silicon carbide powder.

[0086] The preparation method of the high-speed disc brake ceramic friction body in this embodiment is the same as that in Embodiment 1.

Embodiment 3

[0088] It includes a tube 1 with many grooves on the outer surface and an anti-friction body 2 pressed and sintered with various wear-resistant powder materials in the tube 1 with many grooves on the outer surface. A wear-resistant powdery material formula is:

[0089] 4.0% ferrochromium powder, 0.5% ferromolybdenum powder, 3.0% copper powder,

[0090] Graphite powder 8.0%, molybdenum disulfide powder 2.0%, molybdenum disilicide powder 2.0%,

[0091] Lead oxide powder 2.0%, lead powder 4.0%, mullite plus silicon carbide powder 15.0%,

[0092] The balance is iron powder; the formula of mullite plus silicon carbide powder is, by weight percentage, 70% of mullite powder and 30% of silicon carbide powder.

[0093] The preparation method of the high-speed disc brake ceramic friction body in this embodiment is the same as that in Embodiment 1.

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Abstract

The invention belongs to a compounding technique of a high-speed disc-typed brake ceramic typed friction body and comprises a pipe which is provided with a plurality of concave troughs on the external surface and an anti-friction body that is pressed and sintered by various wearable powder-shaped materials is arranged in the pipe which is provided with a plurality of concave troughs on the external surface; according to the weight percentage, all wearable powder-shaped material compounding in the anti-friction body comprises chromium iron powders, ferromolybdenum powders, Copper powders, graphite powders, supramoly powders, molybdenum disilicide powders, lead oxide powders, lead powders, mullite, carborundum powders and iron powders; the compounding technique comprises the preparation steps as follows: (1) selecting materials; (2) pre-mixing small materials of mullite adding with carborundum powders; (3) pre-mixing middle materials; (4) mixing all materials; (5) shape pressing and sintering; (6) embedding the materials into a heat dissipation sleeve. The compounding technique has the advantages that the mullite is added with the carborundum powders, the mullite has high wearability, the Fe powders are used as mainbody to replace the Cu powders, thus greatly saving the cost, with the friction coefficient still being: Mu equal to 0.32-0.57.

Description

technical field [0001] The invention belongs to the technical field of high-speed disc brake ceramic friction bodies, in particular to the formulation technology of high-speed disc brake ceramic friction bodies. Background technique [0002] Most of the existing disc brake powder non-metallurgical friction body products at home and abroad use copper-based powder metallurgy materials, because copper-based powder metallurgy materials have good thermal conductivity under light and medium load wet conditions in medium and low temperature environments, Best friction performance. However, under the dry conditions of 200 km / h at high speed and 200 tons of heavy load, its friction performance decreases, wear increases, and its service life is shortened. Contents of the invention [0003] The purpose of the present invention is to provide a high temperature resistant, high speed, heavy load friction body that can work well under dry conditions and is embedded in a high speed disc ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C08J5/14
Inventor 向兴碧
Owner 向兴碧
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