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Low-resin-based aramid pulp wear-resistant disc brake pad and preparation method thereof

A disc brake pad and resin technology, which is applied in the field of brake pad manufacturing, can solve the problems of high braking noise, easy damage to the dual disc, and large thermal decay, and achieve low braking noise, reduced high-temperature wear, and high operating temperature. Effect

Pending Publication Date: 2021-07-16
NINGGUO FEIYING AUTO SPARE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the mainstream automotive disc brake pads on the market all use metal or metal-less resin-based friction materials. Compared with asbestos sheets, metal fiber-reinforced resin-based friction materials are more environmentally friendly and have stable friction performance, but they are prone to rust and brake noise. Large, easy to damage the dual plate, serious dust fall and other defects. In addition, because the base is made of pure phenolic resin, there are problems such as large thermal decay at high temperature and poor wear resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A low-resin-based aramid pulp wear-resistant disc brake pad. The material formula of the disc brake pad is calculated by weight percentage: 7% organic binder, 25% reinforcing material fibers, 10% friction modifier, 25% anti-wear lubricant, 5% elastic toughening agent, 8% high-temperature inorganic binder, 3% wear-increasing agent, and 17% space filler.

[0024] Further, the material formula of the binder is calculated by weight percentage: 50% of nitrile modified phenolic resin, 35% of cardanol resin and 15% of viscosity regulator.

[0025] Further, the material formula of the reinforcement fiber is calculated by weight percentage: 50% of composite mineral fiber, 20% of ceramic fiber, 10% of potassium titanate whisker, 10% of pre-oxidized silk and 10% of aramid pulp.

[0026] Further, the material formula of the friction performance regulator is calculated by weight percentage: 50% of wear-resistant coke powder, 25% of red vermiculite and 25% of friction powder.

[002...

Embodiment 2

[0039] A low-resin-based aramid pulp wear-resistant disc brake pad. The material formula of the disc brake pad is calculated by weight percentage: 8% organic binder, 25% reinforcing material fibers, 15% friction performance modifier, 20% anti-wear lubricant, 5% elastic toughening agent, 6% high-temperature inorganic binder, 3% wear-increasing agent, and 18% space filler.

[0040] Further, the material formula of the binder is calculated by weight percentage: 45% of nitrile modified phenolic resin, 45% of cardanol resin and 10% of viscosity regulator.

[0041] Further, the material formula of the reinforcement fiber is calculated by weight percentage: 40% of composite mineral fiber, 30% of ceramic fiber, 15% of potassium titanate whisker, 5% of pre-oxidized silk and 10% of aramid pulp.

[0042] Further, the material formula of the friction performance regulator is calculated by weight percentage: 45% of wear-resistant coke powder, 25% of red vermiculite and 30% of friction powd...

Embodiment 3

[0055] A low-resin-based aramid pulp wear-resistant disc brake pad. The material formula of the disc brake pad is calculated by weight percentage: organic binder 7%, reinforcing material fiber 25%, friction performance regulator 15%, 25% anti-wear lubricant, 3% elastic toughening agent, 6% high-temperature inorganic binder, 3% wear-increasing agent, and 16% space filler.

[0056] Further, the material formula of the binder is calculated by weight percentage: 45% of nitrile modified phenolic resin, 40% of cardanol resin and 15% of viscosity regulator.

[0057] Further, the material formula of the reinforcement fiber is calculated by weight percentage: 35% of composite mineral fiber, 35% of ceramic fiber, 10% of potassium titanate whisker, 5% of pre-oxidized silk and 15% of aramid pulp.

[0058] Further, the material formula of the friction performance regulator is calculated by weight percentage: 40% of wear-resistant coke powder, 35% of red vermiculite and 25% of friction powd...

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Abstract

The invention provides a low-resin-based aramid pulp wear-resistant disc brake pad and a preparation method thereof. The low-resin-based aramid pulp wear-resistant disc brake pad comprises the following materials in percentage by weight: 6-9% of an organic binder, 25-35% of reinforcing material fibers, 10-20% of a friction performance regulator, 25-35% of an anti-wear lubricant, 5-10% of an elastic toughening agent, 5-8% of a high-temperature inorganic binder, 3-8% of a friction increasing agent and 15-30% of a space filler. An aramid pulp hybrid fiber reinforced low-content modified phenolic resin-based brake pad sample is prepared through a mold pressing method, and the formula research and development and the manufacturing technology of the aramid pulp low-resin-based wear-resistant disc brake pad are provided. The disc brake pad designed and prepared through the method has the characteristics of being high in strength, stable in friction coefficient, resistant to high temperature, resistant to abrasion and the like, braking is comfortable in the using process, noise is avoided, dust falling is little, the service life can reach 100 thousand kilometers or above, and the service life of a product is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of brake pad manufacturing, in particular to a low-resin based aramid pulp wear-resistant disc brake pad and a preparation method thereof. Background technique [0002] The disc brake pad is a component of the disc brake system. It is fixed with the tire of the vehicle, and the disc that rotates at the same speed cooperates with the caliper to brake the vehicle. It is divided into disc type, ventilated disc type and friction plate type. Disc brakes have a disc that is fixed to the tire and rotates at the same speed. When braking, oil pressure is used to push the brake pads to clamp the disc, and the friction generated by contact is used to brake. Friction blocks are mainly composed of friction materials and adhesives, among which friction materials are an important part in the manufacture and use of brake pads. Automobile brake pads are Class A key components of automobile braking systems. In 2020, they ha...

Claims

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Application Information

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IPC IPC(8): F16D69/02C09K3/14
CPCC09K3/14F16D69/02F16D2200/0034F16D2200/0052F16D2200/006F16D2200/0086
Inventor 孙奇春周磊黄显鹏
Owner NINGGUO FEIYING AUTO SPARE PARTS
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