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Preparation method of a new type of disc friction plate

A friction plate and disc type technology, which is applied in the field of preparation of new disc type friction plates, can solve the problems of straining the dual surface, large braking noise, etc., to improve the performance of shock absorption and noise reduction, and improve the performance of shock absorption and sound absorption and noise reduction , the effect of improving the uniformity of distribution

Active Publication Date: 2022-03-29
HUBEI FEILONG FRICTION & SEALING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the semi-metallic friction plate formula in the prior art has the advantages of stable braking torque at high temperature and long service life, the semi-metallic friction plate in the prior art still has the disadvantages of straining the dual surface and generating large braking noise. , so it is necessary to introduce a new material formula in the prior art semi-metallic friction plate formula to modify the friction plate to solve the above problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The invention provides a method for preparing a novel disc friction plate, comprising the following steps:

[0025] Step S1: Internal mixing: In the first part, put nitrile rubber, polytetrafluoroethylene, EPDM rubber particles, and methyl cyclodextrin into the internal mixer. Partly put in steel fiber, lauryl alcohol methacrylate, synthetic graphite, hemp fiber, and manganese sulfide to continue banburying at 0°C, rotating speed 35r / min, and banburying for 180s. After the third part is added flake graphite and vulcanization system agent, The top bolt on the internal mixer falls, the internal mixing temperature is 90°C, the rotating speed is 35r / min, the internal mixing time is 8min, the internal pressure of the internal mixing silo is 2MPa, and the internal mixing is made into a mixture, calculated in parts by weight, the raw material in step S1 The ratio is: 10 parts of nitrile rubber, 40 parts of steel fiber, 5 parts of polytetrafluoroethylene, 3 parts of manganese s...

Embodiment 2

[0031] The invention provides a method for preparing a novel disc friction plate, comprising the following steps:

[0032] Step S1: Internal mixing: In the first part, put nitrile rubber, polytetrafluoroethylene, EPDM rubber particles, and methyl cyclodextrin into the internal mixer. Partly put in steel fiber, lauryl alcohol methacrylate, synthetic graphite, hemp fiber, and manganese sulfide and continue banburying at 40°C, speed of 40r / min, and banburying for 200s. After the third part is added flake graphite and vulcanization system agent, The top bolt on the internal mixer falls, the internal mixing temperature is 95°C, the rotating speed is 40r / min, the internal mixing time is 9min, the internal pressure of the internal mixing silo is 2MPa, and the internal mixing is made into a mixture, calculated in parts by weight, the raw material in step S1 The ratio is: 15 parts of nitrile rubber, 50 parts of steel fiber, 8 parts of polytetrafluoroethylene, 5 parts of manganese sulfi...

Embodiment 3

[0038] The invention provides a method for preparing a novel disc friction plate, comprising the following steps:

[0039]Step S1: Internal mixing: In the first part, put nitrile rubber, polytetrafluoroethylene, EPDM rubber particles, and methyl cyclodextrin into the internal mixer. Partly put in steel fiber, lauryl alcohol methacrylate, synthetic graphite, hemp fiber, and manganese sulfide and continue banburying at 25°C, speed of 38r / min, and banburying for 190s. After the third part is added flake graphite and vulcanization system agent, The upper bolt of the internal mixer falls, the internal mixing temperature is 93°C, the rotating speed is 38r / min, the internal mixing time is 8.5min, the internal pressure of the internal mixing silo is 2MPa, and the mixture is mixed by parts by weight. The raw materials in step S1 The ratio is: 12 parts of nitrile rubber, 45 parts of steel fiber, 7 parts of polytetrafluoroethylene, 4 parts of manganese sulfide, 23 parts of synthetic grap...

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PUM

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Abstract

The invention provides a method for preparing a novel disc friction plate, which includes the following steps: Step S1: banburying: the first part puts nitrile rubber, polytetrafluoroethylene, and EPDM rubber particles into a banbury mixer for a period of time, and the second part The second part is put into steel fiber, synthetic graphite, hemp fiber, and manganese sulfide to continue banburying, and the third part is added with flake graphite and vulcanization system agent, and the top bolt on the banbury mixer falls, banburying into a mixture; Step S2: Roller refining; Step S3 : crushing; step S4: hot pressing forming; step S5: grinding treatment: grinding the friction plate blank to form a required disc friction plate. The invention provides a method for preparing a novel disc friction plate, and prepares a novel disc friction plate with good shock and noise reduction performance and long service life.

Description

technical field [0001] The invention relates to the technical field of brake friction lining production, in particular to a method for preparing a novel disc friction lining. Background technique [0002] With the widespread application of disc brakes in the field of commercial vehicles, there are also many problems in the after-sales of disc brake pads, such as metal transfer, brake disc strain, and high-frequency braking to generate loud noises. Most of the commercial vehicle disc friction plates on the market are semi-metallic, and the friction material contains a certain proportion of steel fibers. Although the semi-metallic friction plate formula in the prior art has the advantages of stable braking torque at high temperature and long service life, the semi-metallic friction plate in the prior art still has the disadvantages of straining the dual surface and generating large braking noise. , so it is necessary to introduce a new material formulation into the prior art ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08L27/18C08L1/02C08L23/16C08L5/16C08K7/06C08K3/30C08K3/04C08K7/00C08K5/101C08K13/04F16D69/02
Inventor 许亮
Owner HUBEI FEILONG FRICTION & SEALING MATERIALS