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Curved-hole flow channel ceramic base brake pad composite material and preparation method thereof

A technology of composite materials and base brake pads, which is applied in the field of auto parts, can solve the problems of obvious thermal degradation of friction materials, short service life, high wear rate, etc., achieve excellent frictional thermal stability, reduce regularity, and reduce wear rate Effect

Active Publication Date: 2020-01-24
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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  • Curved-hole flow channel ceramic base brake pad composite material and preparation method thereof
  • Curved-hole flow channel ceramic base brake pad composite material and preparation method thereof
  • Curved-hole flow channel ceramic base brake pad composite material and preparation method thereof

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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 channel 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), lins...

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Abstract

The invention discloses a curved-hole flow channel ceramic base brake pad composite material and a preparation method thereof. The curved-hole flow channel ceramic base is manufactured by using Stereolithography Apparatus (SLA), and graphene and Sn-Ag-Cu composite filler is prepared and filled into the curved hole flow channel by vacuum pressure infiltration technology, and then the curved-hole flow channel ceramic base brake pad composite material is prepared by hot pressing molding process. Compared with the traditional brake pad material, the unique structural design and the optimized filler formula of the invention are combined with the advanced preparation process, so that the average friction coefficient of the brake material of the invention is greater than 0.402 in the operation process, the friction coefficient changes stably, and the material wear rate is lower than 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 Applications(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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