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A brake pad for a disc brake

A technology of disc brakes and brake pads, which is applied in the field of brake pads, can solve the problems of high specific gravity of brake pads, high braking noise, and worn counterparts, and achieve good braking performance, high braking safety factor, and isolation from deformation. Effect

Active Publication Date: 2018-10-23
ZHEJIANG IND & TRADE VACATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the brake pads prepared by this patent have the disadvantages of high specific gravity, easy to rust, wear on the pair, high braking noise, and excessive thermal conductivity

Method used

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  • A brake pad for a disc brake
  • A brake pad for a disc brake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A brake pad for a disc brake, which is composed of a back plate, a heat insulating layer and a friction material, the back plate is made of stainless steel; the heat insulating layer is prepared from the following raw materials in mass percentage: foamed polyurethane 50%, polyamide Imine 25%, glass wool 11%, high silica cotton 10%, aluminum polyester 4%; the friction material is prepared from the following raw materials in mass percentage: thermosetting phenolic resin 35%, thermosetting epoxy resin 40%, chopped carbon fiber 12%, aramid fiber 6%, kaolin 2%, graphite 2%, molybdenum disulfide 1%, sodium polyacrylate 1%, polytetrafluoroethylene 1%. Wherein, the mass percent content of the chromium element in the stainless steel material is 1%.

[0032] Wherein, the preparation method of heat insulation layer comprises the following steps:

[0033] Step A, preparation of heat insulation layer substrate: Combine foamed polyurethane, polyimide, glass wool, and high silica woo...

Embodiment 2

[0041] A brake pad for a disc brake, consisting of a back plate, a heat insulating layer and a friction material, the back plate is made of stainless steel; the heat insulating layer is prepared from the following raw materials in mass percentage: foam polyurethane 65%, polyamide 15% imine, 13% glass wool, 5% high silica cotton, 2% aluminum polyester; the friction material is prepared from the following raw materials in mass percentage: 45% thermosetting phenolic resin, 45% thermosetting epoxy resin 30%, chopped carbon fiber 11%, aramid fiber 5%, kaolin 2%, graphite 2%, molybdenum disulfide 2%, sodium polyacrylate 1%, polytetrafluoroethylene 2%. Wherein, the mass percent content of chromium element in the stainless steel material is 2%.

[0042] Wherein, the preparation method of heat insulation layer comprises the following steps:

[0043] Step A, preparation of heat insulation layer substrate: Combine foamed polyurethane, polyimide, glass wool, and high silica wool in seque...

Embodiment 3

[0051] A brake pad for a disc brake, which consists of a back plate, a heat insulating layer and a friction material, the back plate is made of stainless steel; the heat insulating layer is prepared from the following raw materials in mass percentage: foam polyurethane 57%, polyamide 20% imine, 12% glass wool, 8% high silica cotton, 3% aluminum polyester; the friction material is prepared from the following raw materials in mass percentage: 42% thermosetting phenolic resin, 42% thermosetting epoxy resin 37%, chopped carbon fiber 8%, aramid fiber 6%, kaolin 1.5%, graphite 1.5%, molybdenum disulfide 1.7%, sodium polyacrylate 0.8%, polytetrafluoroethylene 1.5%. Wherein, the mass percent content of chromium element in the stainless steel material is 1.5%.

[0052] Wherein, the preparation method of heat insulation layer comprises the following steps:

[0053] Step A, preparation of heat insulation layer substrate: Combine foamed polyurethane, polyimide, glass wool, and high silic...

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Abstract

The invention discloses a brake block for a disc brake. The brake block consists of a back plate, a thermal insulating layer and a friction material, wherein the back plate is made of a stainless steel material; the thermal insulating layer is prepared from foamed polyurethane, polyimide, glass cotton, silica-rich cotton and aluminum polyester; the friction material is prepared from thermosetting phenolic resin, thermosetting epoxy resin, short carbon fiber, aramid fiber, kaolin, graphite, molybdenum disulfide, sodium polyacrylate and polytetrafluoroethylene. The brake block for the disc brake, disclosed by the invention, is good in friction stability, low in cost, low in density, good in brake property, good in abrasion resistance, low in brake noise and good in environment resistance, and product standards which are improved day by day in the automobile manufacturing industry can be met.

Description

technical field [0001] The invention relates to the field of friction linings, in particular to a brake lining for disc brakes. Background technique [0002] Brake pads are braking materials that must be assembled in power machinery and motor vehicles, and their performance directly affects the stability and reliability of vehicles and equipment. The core material of the brake pad is the friction material. According to the composition of friction materials, brake pads can be divided into: asbestos brake pads, semi-metallic brake pads, NAO brake pads (asbestos-free organic brake pads). [0003] Among them, asbestos brake pads are gradually abandoned and replaced by the market due to strong thermal recession and strong carcinogenicity; semi-metallic brake pads replace asbestos brake pads due to their high friction coefficient, good thermal conductivity, and easy processing and molding. It occupies a leading position in the market, but there are also disadvantages such as hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/06C08L75/04C09K3/14F16D69/02
CPCC08K2201/014C08L61/06C08L75/04C08L2201/08C08L2205/03C08L2205/035C08L2205/16C09K3/14F16D69/023C08L79/08C08L67/00C08L63/00C08L77/06C08L33/02C08L27/18C08K13/04C08K7/06C08K3/04C08K3/346C08K2003/3009
Inventor 赵岚
Owner ZHEJIANG IND & TRADE VACATIONAL COLLEGE
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