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A kind of curved hole channel ceramic base brake pad composite material and its preparation method

A composite material and base brake pad technology, applied in the field of auto parts, can solve the problems of obvious thermal recession, high wear rate and short service life of friction materials

Active Publication Date: 2021-07-06
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a curved hole channel ceramic-based brake pad composite material and its preparation method in view of the above-mentioned deficiencies in the prior art. The prepared ceramic-based brake pad satisfies good mechanical properties and friction Under the performance requirements, it has outstanding thermal stability, low wear rate and noise reduction and vibration reduction performance; it can solve the problems of obvious thermal degradation, high wear rate and short service life of friction materials in existing products

Method used

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  • A kind of curved hole channel ceramic base brake pad composite material and its preparation method
  • A kind of curved hole channel ceramic base brake pad composite material and its preparation method
  • A kind of curved hole channel ceramic base brake pad composite material and its preparation method

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Embodiment 1

[0038] A kind of ceramic-based brake pad composite material with curved hole flow channel, its composition is as follows by mass percentage: graphene (1wt.%), Sn-Ag-Cu alloy (4wt.%), nitrile rubber powder (4wt.%) for composite filler), linseed oil modified phenolic resin (5wt.% for composite filler), potassium titanate whiskers (17wt.%), linseed oil modified phenolic resin (18wt.% for matrix), nitrile rubber Powder (7wt.% for matrix), molybdenum disulfide (5wt.%), alumina (8wt.%), silicon oxide (3wt.%), calcium silicate (8wt.%), barite (15wt.%) %), white vermiculite powder (5wt.%). Wherein, the composition of the Sn-Ag-Cu alloy is: Sn (55wt.%), Ag (40wt.%), Cu (5wt.%), and its particle size is 25-45 μm.

[0039] Such as figure 1 As shown, the preparation method of the above-mentioned curved hole runner ceramic-based brake pad composite material specifically includes the following steps:

[0040] 1) Preparation of ceramic raw materials, the component content is: potassium ti...

Embodiment 2

[0048] A kind of curved hole flow path ceramic base brake pad composite material, its composition is as follows by mass percentage: graphene (1.5wt.%), Sn-Ag-Cu alloy (3.5wt.%), nitrile rubber powder (3wt. % for composite filler), linseed oil modified phenolic resin (3wt.% for composite filler), potassium titanate whiskers (17wt.%), linseed oil modified phenolic resin (25wt.% for matrix), butyl Nitrile rubber powder (6wt.% for matrix), molybdenum disulfide (3wt.%), alumina (8wt.%), silicon oxide (3wt.%), calcium silicate (7wt.%), barite ( 15wt.%), white vermiculite powder (5wt.%). Wherein, the composition of the Sn-Ag-Cu alloy is: Sn (55wt.%), Ag (35wt.%), Cu (10wt.%), and its grain size is 25-45 μm.

[0049] The preparation method of the above-mentioned curved hole channel ceramic-based brake pad composite material specifically includes the following steps:

[0050] 1) Preparation of ceramic raw materials, the component content is: potassium titanate whiskers (34g), linseed...

Embodiment 3

[0057] A kind of curved hole flow path ceramic base brake pad composite material, its composition is as follows by mass percentage: graphene (1.5wt.%), Sn-Ag-Cu alloy (3.5wt.%), nitrile rubber powder (4wt. % for composite filler), linseed oil modified phenolic resin (2wt.% for composite filler), potassium titanate whiskers (13wt.%), linseed oil modified phenolic resin (25wt.% for matrix), butyl Nitrile rubber powder (7wt.% for matrix), molybdenum disulfide (5wt.%), alumina (8wt.%), silicon oxide (3wt.%), calcium silicate (8wt.%), barite ( 15wt.%), white vermiculite powder (5wt.%). Wherein, the composition of the Sn-Ag-Cu alloy is: Sn (60wt.%), Ag (30wt.%), Cu (10wt.%), and its particle size is 25-45 μm.

[0058] The preparation method of the above-mentioned curved hole runner ceramic-based brake pad composite material specifically includes the following steps:

[0059] 1) Preparation of ceramic raw materials, the component content is: potassium titanate whiskers (26g), linse...

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Abstract

The invention discloses a ceramic-based brake pad composite material with a curved hole flow channel and a preparation method thereof. The ceramic matrix of the curved hole flow channel is manufactured by using the light-curing forming technology (SLA), and a composite filler of graphene and Sn-Ag-Cu is prepared. , using vacuum pressure infiltration technology to fill the composite filler into the curved hole flow channel, and then using the hot pressing process to prepare the curved hole flow channel ceramic-based brake pad composite material. Compared with traditional brake pad materials, the unique structural design and optimized filler formula of the present invention combined with advanced preparation technology make the brake material of the present invention have an average friction coefficient greater than 0.402 during operation, and the friction coefficient changes stably, and the material wear rate is low at 1.15×10 ‑7 cm 3 • N ‑1 •m ‑1 , All performance parameters are superior to national standards and traditional brake pad products.

Description

technical field [0001] The invention relates to a ceramic-based brake pad composite material with a curved hole flow channel and a preparation method thereof, belonging to the field of auto parts. Background technique [0002] Automobile is a convenient and efficient means of transportation, and its braking system is the most important safety device to ensure the safe driving of automobiles. Among them, the brake pad is the core component of the braking system, and the performance of the friction material of the brake pad plays a decisive role in the braking effect. The key factors affecting the performance of the friction material of the brake pad are its wear resistance and thermal stability. Therefore, excellent brake pad products must have the advantages of good thermal stability, low wear rate, low friction noise and small brake vibration. With the rapid development of automobile manufacturing technology in the direction of green environmental protection, safety and re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/12C04B38/00C04B41/69B29C69/02F16D69/02C04B111/20C04B111/52
CPCB29C69/02C04B26/122C04B41/5161C04B41/69C04B2111/00362C04B2111/00465C04B2111/2038C04B2111/52F16D69/02F16D2200/0026F16D2200/0052F16D2200/0065F16D2200/0086F16D2250/0023C04B14/383C04B24/2652C04B14/36C04B14/303C04B14/06C04B14/043C04B14/368C04B14/202C04B38/00C04B41/5127C04B41/5116C04B41/4823C04B41/4857C04B41/5001C04B41/4515C04B41/4523C04B41/4517
Inventor 史晓亮薛亚文卢冠辰杨镇瑜陈远周宏胭张锦
Owner WUHAN UNIV OF TECH
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