Copper-free high-performance environment-friendly type friction material for saloon car and preparation method thereof

Abstract

A copper-free high-performance environment-friendly type friction material for a saloon car and a preparation method thereof are provided. The friction material comprises the following components in parts by weight: 6-8 parts of phenolic resin, 2-4 parts of aramid fiber, 13-18 parts of an RB205 mixture, 15-20 parts of potassium titanate, 5-8 parts of calcium hydroxide, 20-25 parts of barium sulfate, 1-3 parts of artificial graphite, 3-5 parts of a cashew nut oil friction powder, 3-5 parts of antimony sulfide, 1-3 parts of a butyronityile rubber powder, 3-5 parts of mica, 4-6 parts of calcium silicate, and 1-3 parts of zirconia. The preparation method comprises the steps: a) weighing the component materials according to the formula ratio, and then dispersing into a uniform mixture; b) loading the mixture into a saloon car friction block dedicated die, carrying out hot press molding with the hot press duration time of not less than 5 minutes; and c) carrying out conventional heat treatment on the friction material after hot press molding, and after being fully cured, carrying out size and appearance machining into the product. The friction material has the advantages of excellent high-temperature characteristic, good abrasive resistance performance, good braking performance, reasonable price, recession resistance, high life, stable friction coefficient and the like.

Description

technical field [0001] The invention relates to a copper-free high-performance environment-friendly friction material for cars and a preparation method thereof, belonging to the technical field of automobile brake materials. Background technique [0002] The brake block for a car is a key component when the car is braking. It converts the kinetic energy of the car into heat and other forms of energy, thereby slowing down or stopping the car. Therefore, its performance is directly related to the running of the car. reliability and stability. [0003] At present, there are two main types of friction blocks for cars on the market, one is imported original products, which have good wear resistance and braking performance, but the price is high; the other is domestic products, although its price is low, but However, the wear resistance is poor, the service life is short, and the braking performance is not good; because the raw materials used in the friction materials of the exist...

AI Technical Summary

Problems solved by technology

[0003] At present, there are two main types of friction blocks for cars on the market, one is imported original products, which have good wear resistance and braking performance, but the price is high; the other is domestic products, although its price is low, but However, the wear resistance is poor, the service life is short, and the braking performance is not good; because the raw materials used in the friction materials of the existing cars are generally added with various heavy metals, and the use of various heavy metals will cause pollution to the ecological environment, so the existing cars The friction material used does not comply with the administrative regulations on "Prohibited Substances for Automobiles" that will be promulgated in my country