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Copper-free friction material and brake pad

A technology of friction materials and thermally conductive materials, applied in friction linings, gear transmission mechanisms, mechanical equipment, etc., can solve problems such as aggregation, uneven wear of brake discs, high temperature heat, and uneven deformation of brake discs.

Pending Publication Date: 2020-07-10
泰明顿摩擦材料技术(上海)有限公司
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Problems solved by technology

However, this also creates a certain hidden danger: the aggressiveness of the friction lining is too strong, which may cause uneven wear of the brake disc or the formation of local friction and high-temperature heat accumulation, which may cause uneven deformation of the brake disc, so the friction lining After actual use, its jitter and noise performance needs to be further verified

Method used

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  • Copper-free friction material and brake pad
  • Copper-free friction material and brake pad
  • Copper-free friction material and brake pad

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Embodiment Construction

[0034] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0035] In order to achieve the above purpose, this solution adopts an optimized combination of anisotropic and isotropic heat-conducting materials. This combination of heat-conducting systems makes the brake pads have excellent thermal conductivity along the friction surface, while in the vertical direction Has relatively weak thermal conductivity. During the braking process, the brake pads can release the heat generated by braking in time, avoiding the formation of local hot spots on the brake pads or brake discs, so they have very good anti-fading, wear-resistant and anti-vibration characteristics while meeting requirements of environmental regulations.

[0036] Specifically, the anisotropic thermally conductive material includes: flaky graph...

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Abstract

The invention discloses a copper-free friction material and a brake pad prepared based on the copper-free friction material. The copper-free friction material is characterized in that anisotropic heatconduction materials and isotropic heat conduction materials are adopted and combined to form a heat conduction system, the isotropic heat conduction materials are evenly and randomly distributed andfill among anisotropic heat conduction material particles, the anisotropic heat conduction materials are connected, and the effect of replacing metal copper is achieved; and the scheme of the copper-free friction material is an environment-friendly friction material. According to the copper-free friction material and the brake pad, the brake pad prepared based on the friction material has the special heat conduction characteristics that the heat conductivity in the direction of the friction surface is very good, the heat conductivity in the thickness direction of the brake pad is relatively low, in the braking process, the brake pad can release heat generated by braking in time, local hot spots are prevented from being formed on the brake pad or a brake disc, and therefore, the copper-free friction material has very good characteristics of recession resistance, wear resistance, shaking resistance and the like.

Description

technical field [0001] The invention relates to the technical field of friction materials, in particular to a copper-free friction material and a brake pad prepared based on the same. Background technique [0002] According to the materials used in the formula, friction materials can be divided into several types such as "semi-metal", "low metal" and "organic non-asbestos (NAO)". Among them, the semi-metallic formula has been gradually eliminated due to the large amount of metal used and poor noise performance. Due to its good high temperature resistance, the low-metal formula is widely used in some high-performance automobile fields that have high requirements for extreme characteristics. This kind of application usually has high requirements for harsh braking conditions, but it has a high impact on noise. Not very sensitive in terms of comfort. However, in the field of ordinary family cars, the driving conditions are often not complicated, and the driving environment is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02F16D69/04
CPCF16D69/02F16D69/026F16D69/04F16D2069/002F16D2069/045F16D2200/0034F16D2200/006F16D2200/0082F16D2250/0023F16D2250/0069
Inventor 陈小刚旷文敏陈耀
Owner 泰明顿摩擦材料技术(上海)有限公司
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