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Corrosion resistant low noise semi-metallic brake pad

A low-noise, semi-metal technology, applied in the field of metal brake pads, can solve the problems of large damage to brake drums or brake discs, easy corrosion of semi-metal brake pads, and high thermal conductivity, and achieves good resistance to high temperature thermal recession and noise. Small, high coefficient of friction effect

Active Publication Date: 2009-10-14
摩擦一号制动科技(仙桃)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention mainly solves the technical problems of existing semi-metallic brake pads such as easy corrosion, high noise during braking, high thermal conductivity, and relatively large damage to brake drums or brake discs.

Method used

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  • Corrosion resistant low noise semi-metallic brake pad

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: by weight percentage with nitrile rubber powder 2%, tire powder 5%, expanded graphite 4%, boron phenolic resin 13%, stainless short fiber (4-7mm) 15%, red copper fiber (length is 3-5mm ) 5%, cashew nut oil friction powder 2%, graphite particles 5%, superfine iron oxide powder (300-325 mesh) 8%, diatomite 3%, acicular wollastonite fiber 9%, barite (600 mesh) 10%, chromite powder (300-350 mesh) 5%, sepiolite fiber 5%, zinc stearate 0.5%, zircon powder 3%, boron nitride 3%, molybdenum disulfide powder 2.5% After mixing, put it into a high-speed disperser, stir it into powder, take it out, put it into a forming mold for pressing, and then compound it with a steel back and put it into a flat vulcanizer at a high temperature of 270°C and a pressure of 18MPa for 15 minutes. , and then take out the brake pads and remove the burrs to become the finished product.

Embodiment 2

[0016] Embodiment 2: by weight percentage with nitrile rubber powder 4%, tire powder 3%, expanded graphite 5%, boron phenolic resin 10%, stainless short fiber (4-7mm) 11%, red copper fiber (length is 3-5mm ) 3.8%, cashew nut oil friction powder 3%, graphite particles 3%, superfine iron oxide powder (300-325 mesh) 7%, diatomite 5%, acicular wollastonite fiber 10%, barite (600 mesh) 15%, chromite powder (300-350 mesh) 3%, sepiolite fiber 8%, zinc stearate 0.2%, zircon powder 2%, boron nitride 5%, molybdenum disulfide powder 2% After mixing, put it into a high-speed disperser, stir it into powder, take it out, put it into a forming mold for pressing, and then compound it with a steel back and put it into a flat vulcanizer at a high temperature of 270°C and a pressure of 18MPa for 15 minutes. , and then take out the brake pads and remove the burrs to become the finished product.

Embodiment 3

[0017] Embodiment 3: by weight percentage with nitrile rubber powder 3%, tire powder 4%, expanded graphite 3%, boron phenolic resin 9%, stainless short fiber (4-7mm) 14%, red copper fiber (length is 3-5mm ) 6.4%, cashew nut oil friction powder 2.3%, graphite particles 4%, superfine iron oxide powder (300-325 mesh) 10%, diatomite 3%, acicular wollastonite fiber 12%, barite (600 mesh) 11%, chromite powder (300-350 mesh) 4%, sepiolite fiber 4%, zinc stearate 0.3%, zircon powder 3%, boron nitride 4%, molybdenum disulfide powder 3% After mixing, put it into a high-speed disperser, stir it into powder, take it out, put it into a forming mold for pressing, and then compound it with a steel back and put it into a flat vulcanizer at a high temperature of 270°C and a pressure of 18MPa for 15 minutes. , and then take out the brake pads and remove the burrs to become the finished product.

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Abstract

A corrosion resistant low noise semi-metallic brake pad comprises the following components according to weight percentages: 2-4% of nitrile rubber buna, 3-5% of tyre powder, 3-5% of expandable graphite, 9-13% of phenolic resin, 10-15% of stainless steel chopped fibre, 4-7% of red copper fibre, 2-3% of cashew nut oil friction powder, 3-5% of graphite particle, 7-10% of superfine ferric oxide powder, 3-5% of diatomite, 7-12% of acicular wollastonite fibre, 10-15% of barite, 3-5% of chromite, 4-8% of sepiolite fibre, 0.2-0.5% of zinc stearate, 2-3% of zirconite, 3-5% of boron nitride and 2-3% of supramoly; the brake pad has the characteristics of corrosion resistant performance, high frictional coefficient, satisfactory high temperature and thermal decay resistant performance, long service life, and the like. After the brake pad is used, the car brake is sensitive, the braking is stable and brake noise is low, and the brake drum or brake disc has no damage in long-term use.

Description

technical field [0001] The invention relates to an automobile brake pad, in particular to a rust-resistant, low-noise semi-metallic brake pad. Background technique [0002] Earlier car brake pads were asbestos-type brake pads, but it is now found that asbestos has been confirmed by the medical profession to be a carcinogen. Every time you brake, the brake pads will emit millions of asbestos fibers into the air, and the needle-like fibers can easily enter the lungs and stay there, causing irritation, which can eventually lead to the occurrence of lung cancer, but in addition to endangering health In addition to other factors, there is another important problem in asbestos brake pads. Because asbestos is heat-insulating, its thermal conductivity is particularly poor. After repeated use of the brakes, the heat will accumulate in the brake pads. After the brake pads become hot, their braking performance will change, and the same friction and braking force will be produced. Mor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02
Inventor 张泽伟张泽元张自立傅光明李波涛
Owner 摩擦一号制动科技(仙桃)有限公司
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