Novel environment-friendly noise-free brake pad and machining method thereof

A processing method and technology for brake pads, applied in the field of automobile brake pads, can solve the problems of adverse effects of high temperature friction performance stability, heat loss of asbestos-based brake pads, poor braking comfort, etc. Comfortable movement and low noise

Inactive Publication Date: 2016-03-09
QINGDAO LIBO AUTO PARTS PRECISION CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditionally used automobile brake pads include asbestos-based, semi-metallic and low-metal brake pads. These types of brake pads have certain defects in application: asbestos-based brake pads have serious heat loss and are not suitable for high-speed braking, and asbestos is A carcinogen, which has been banned from use at present; semi-metallic brake pads are mainly composed of steel fibers as the skeleton material, phenolic resin as the binder, iron powder as the wear-resistant agent, and various functional fillers are added to compound it, and its specific gravity is large. , high brittleness, high friction temperature, high low-frequency noise, large dual wear and severe high-temperature recession, which can easily cause high-temperature brake failure and seriously affect the safety of the vehicle during braking; more advanced low-metal brake pads are based on a small amount of steel Fiber plus mineral fiber is used as the matrix, which causes greater wear and poor braking comfort, and also has adverse effects on the stability of high-temperature friction performance

Method used

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  • Novel environment-friendly noise-free brake pad and machining method thereof
  • Novel environment-friendly noise-free brake pad and machining method thereof
  • Novel environment-friendly noise-free brake pad and machining method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1. The material of the brake pad includes the following components by weight: 10 parts of resin, 3 parts of resin toughening agent, 5 parts of tire powder, 4 parts of glass fiber, 15 parts of composite fiber, 6 parts of graphite, 8 parts of granular material, and 6 parts of friction powder , 10 parts of barite powder, 7 parts of mica powder, 3 parts of vermiculite, 13 parts of coke powder, 5 parts of carbon black, 3 parts of diatomaceous earth, and 2 parts of high-temperature alumina.

[0029] Among them, the flow distance of the resin is 40-50mm, the fiber length of the glass fiber is 6mm, the fiber length of the composite fiber is 2-9mm, the graphite is 100 mesh, the granular material is 20-40 mesh, and the friction powder is 40 mesh; The spar powder is 325 mesh, the mica powder is 100 mesh, the vermiculite is 40 mesh, the coke powder is 60 mesh, the carbon black is 325 mesh, the diatomite is 325 mesh, and the high temperature alumina is 325 mesh.

[0030] Th...

Embodiment 2

[0041] Example 2. The material of the brake pad includes the following components by weight: 12 parts of resin, 3 parts of resin toughening agent, 5 parts of tire powder, 4 parts of glass fiber, 13 parts of composite fiber, 4 parts of graphite, 10 parts of granular material, 6 parts of friction powder , 10 parts of barite powder, 7 parts of mica powder, 3 parts of vermiculite, 13 parts of coke powder, 5 parts of carbon black, 3 parts of diatomaceous earth, and 2 parts of high-temperature alumina.

[0042] Among them, the flow distance of the resin is 40-50mm, the fiber length of the glass fiber is 6mm, the fiber length of the composite fiber is 2-9mm, the graphite is 100 mesh, the granular material is 20-40 mesh, and the friction powder is 40 mesh; The spar powder is 325 mesh, the mica powder is 100 mesh, the vermiculite is 40 mesh, the coke powder is 60 mesh, the carbon black is 325 mesh, the diatomite is 325 mesh, and the high temperature alumina is 325 mesh.

[0043] The p...

Embodiment 3

[0054]Example 3. The material of the brake pad includes the following components by weight: 13 parts of resin, 3 parts of resin toughening agent, 5 parts of tire powder, 4 parts of glass fiber, 12 parts of composite fiber, 6 parts of graphite, 15 parts of granular material, 4 parts of friction powder , 10 parts of barite powder, 6 parts of mica powder, 3 parts of vermiculite, 10 parts of coke powder, 4 parts of carbon black, 3 parts of diatomaceous earth, and 2 parts of high-temperature alumina.

[0055] Among them, the flow distance of the resin is 40-50mm, the fiber length of the glass fiber is 6mm, the fiber length of the composite fiber is 2-9mm, the graphite is 100 mesh, the granular material is 20-40 mesh, and the friction powder is 40 mesh; The spar powder is 325 mesh, the mica powder is 100 mesh, the vermiculite is 40 mesh, the coke powder is 60 mesh, the carbon black is 325 mesh, the diatomite is 325 mesh, and the high temperature alumina is 325 mesh.

[0056] The pr...

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Abstract

The invention discloses a novel environment-friendly noise-free brake pad and a machining method thereof. The brake pad is made of resin, a resin flexibilizer, tire powder, glass fibers, composite fibers, graphite, granules, friction powder, baryta powder, mica powder, vermiculite, powdered coke, carbon black, kieselguhr and high-temperature aluminum oxide. The novel environment-friendly noise-free brake pad has the beneficial effects that the brake pad does not contain asbestos or heavy metal or compounds, fallen dust is avoided after braking, and environment pollution and cancers are avoided as no asbestos powder is generated; a large quantity of the soft materials such as the flexible granules, the organic friction powder and the organic rubber powder are added, and the inorganic filler such as the porous coke of a loose structure and the vermiculite is also added, so that a user feels comfortable during braking, noise is avoided, and the brake pad is particularly suitable for urban buses.

Description

technical field [0001] The invention relates to the technical field of automobile brake pads, in particular to a novel environmentally friendly and noiseless brake pad and a processing method thereof. Background technique [0002] Traditionally used automobile brake pads include asbestos-based, semi-metallic and low-metal brake pads. These types of brake pads have certain defects in application: asbestos-based brake pads have serious heat loss and are not suitable for high-speed braking, and asbestos is A carcinogen, which has been banned from use at present; semi-metallic brake pads are mainly composed of steel fibers as the skeleton material, phenolic resin as the binder, iron powder as the wear-resistant agent, and various functional fillers are added to compound it, and its specific gravity is large. , high brittleness, high friction temperature, high low-frequency noise, large dual wear and severe high-temperature recession, which can easily cause high-temperature brake...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14
CPCF16D69/028C09K3/149
Inventor 柴叶飞
Owner QINGDAO LIBO AUTO PARTS PRECISION CASTING
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