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Friction material, friction body, brake pad comprising friction body, and preparation method and application of brake pad

A technology of friction materials and brake pads, which is applied in the field of brake pads and brake pads preparation, can solve the problems of easy falling off or delamination, large wear of brake discs, and insufficiently stable friction coefficient, etc., to ensure effectiveness and safety , Reduce maintenance costs, prolong the effect of maintenance cycle

Inactive Publication Date: 2020-12-04
天宜上佳(天津)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects that the existing brake pads for straddle-type monorail trains are easy to fall off or delaminate in a high temperature environment, and their own wear and tear on the brake disc are relatively large, and the friction coefficient is not stable enough. Friction material and friction body, brake pad containing the friction body, and preparation method and application of the brake pad

Method used

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  • Friction material, friction body, brake pad comprising friction body, and preparation method and application of brake pad
  • Friction material, friction body, brake pad comprising friction body, and preparation method and application of brake pad
  • Friction material, friction body, brake pad comprising friction body, and preparation method and application of brake pad

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Embodiment 1

[0047] This embodiment provides a friction material, including the following raw materials: 800g of basalt fiber, 800g of stainless steel fiber, 1000g of chopped carbon fiber, 500g of polyacrylonitrile-based pre-oxidized wire, 1200g of diphenylmethane bismaleimide, powdered nitrile rubber 700g, calcined petroleum coke 1100g, flake graphite 1200g, conductive graphite 700g, copper oxide 400g, magnesium oxide 900g, light calcium carbonate 1400g; The length of described chopped carbon fiber is 3mm, and described diphenylmethane bismaleimide The mesh number is 800 mesh, the mesh number of the powdered nitrile rubber is 120 mesh, the mesh number of the flake graphite is 100 mesh, and the mesh number of the conductive graphite is 100 mesh.

[0048] The method for preparing a brake pad by using the above-mentioned friction material includes the following steps:

[0049] 1) Weigh the above-mentioned raw materials respectively, mix basalt fiber, stainless steel fiber, chopped carbon fib...

Embodiment 2

[0054] This embodiment provides a friction material, including the following raw materials: basalt fiber 500g, stainless steel fiber 1000g, chopped carbon fiber 500g, polyacrylonitrile-based pre-oxidized wire 500g, diphenylmethane bismaleimide 2000g, powdered nitrile rubber 500g, calcined petroleum coke 1500g, flake graphite 1000g, conductive graphite 1000g, copper oxide 300g, magnesium oxide 1400g, light calcium carbonate 1000g; The length of described chopped carbon fiber is 2mm, and described diphenylmethane bismaleimide The mesh number is 700 mesh, the mesh number of the powdered nitrile rubber is 140 mesh, the mesh number of the flake graphite is 80 mesh, and the mesh number of the conductive graphite is 120 mesh.

[0055] The method for preparing a brake pad by using the above-mentioned friction material includes the following steps:

[0056] 1) Weigh the above-mentioned raw materials respectively, first mix basalt fiber, stainless steel fiber, chopped carbon fiber, poly...

Embodiment 3

[0061] This embodiment provides a friction material, including the following raw materials: 1200g of basalt fiber, 500g of stainless steel fiber, 1000g of chopped carbon fiber, 1000g of polyacrylonitrile-based pre-oxidized wire, 500g of diphenylmethane bismaleimide, powdered nitrile rubber 1200g, calcined petroleum coke 800g, flake graphite 2000g, conductive graphite 500g, copper oxide 500g, magnesium oxide 700g, light calcium carbonate 2000g; The length of described chopped carbon fiber is 4mm, and described diphenylmethane bismaleimide The mesh number is 800 mesh, the mesh number of the powdered nitrile rubber is 100 mesh, the mesh number of the flake graphite is 120 mesh, and the mesh number of the conductive graphite is 80 mesh.

[0062] The method for preparing a brake pad by using the above-mentioned friction material includes the following steps:

[0063] 1) Weigh the above raw materials respectively, mix basalt fiber, stainless steel fiber, chopped carbon fiber, polyac...

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Abstract

The invention relates to the technical field of friction materials, and concretely relates to a friction material, a friction body, a brake pad comprising the friction body, and a preparation method and application of the brake pad. The friction material provided by the invention is prepared from, by weight, 20-42 parts of reinforced fibers, 5-20 parts of a binding agent, 5-12 parts of a toughening agent, 23-45 parts of an antifriction agent and 20-40 parts of a stabilizer. When the friction material provided by the invention is applied to the brake pad, the brake pad can be ensured not to fall off and delaminate in a high-temperature environment, the friction body is not easy to deform, meanwhile, the generation of brake noise can be effectively eliminated, the service lives of the brakepad and a brake disc are prolonged, and the effectiveness and safety of train braking are ensured.

Description

technical field [0001] The invention relates to the technical field of friction materials, in particular to a friction material, a friction body, a brake pad comprising the friction body, and a preparation method and application of the brake pad. Background technique [0002] Straddle-type monorail refers to a railway in which a single track is used to support, stabilize and guide, and the car body rides on the track beam. Straddle type monorail is characterized by strong adaptability, low noise, small turning radius and strong climbing ability. The large straddle monorail is theoretically a type of subway, and its speed can reach 90 kilometers per hour. Chongqing Rail Transit Line 2 is the first straddle-type monorail in China and the first urban rail transit line in western China. It has almost no noise and is more environmentally friendly. With the passage of time, a number of straddle-type monorails have been built in my country one after another. [0003] Air disc br...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/00F16D69/02
CPCC04B26/00F16D69/023F16D2200/006F16D2200/0086
Inventor 解小花李想李君君钱钰升
Owner 天宜上佳(天津)新材料有限公司
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