High abrasion resistance and high thermal conductivity brake pad and production method thereof

Abstract

The invention belongs to the technical field of an abrasion resistance material and particularly relates to a high abrasion resistance and high thermal conductivity brake pad. The high abrasion resistance and high thermal conductivity brake pad comprises a substrate steel plate, wherein a friction block is arranged on the substrate steel plate, the friction block comprises a substrate layer connected with the substrate steel plate, and a diamond alkene friction layer is arranged don the substrate layer; the diamond alkene friction layer is produced by adopting nanometer diamond alkene in a layered single-crystal structure; carbon atoms in the same layer of the nanometer diamond alkene are connected with each other by an sp3 orbital hybridization carbon bond, and carbon atoms between layers of the nanometer diamond alkene are connected with each other by an sp2 hybridization carbon bond; the lattice spacing of the nanometer diamond alkene is 0.21nm; the average grain size of the nanometer diamond alkene is R which is more than or equal to 20nm and less than or equal to 500nm; and the carbon content of the nanometer diamond alkene is 99-100%. The high abrasion resistance and high thermal conductivity brake pad has the advantages that the abrasion resistance is high, the thermal conductivity is good, and the hardness is high.

Description

technical field [0001] The invention belongs to the technical field of wear-resistant materials, and relates to a brake pad, in particular to a high-wear-resistant and high-thermal-conduction brake pad and a preparation method thereof. Background technique [0002] In the braking system of automobiles, electric vehicles, etc., brake pads are the most critical safety parts, and at the same time, brake pads are also one of the most easily worn parts. The quality of brake pads plays a decisive role in the braking effect. Pieces are the "protectors" of cars and people. The structure of brake pads is generally composed of steel plates, adhesive insulation layers and friction blocks. Figure 1 As shown, the friction block is composed of friction material and adhesive. When braking, the brake pad is squeezed onto the brake disc or brake drum to generate friction, so as to achieve the purpose of decelerating the vehicle. Due to friction, the friction block will be gradually worn, r...

AI Technical Summary

Problems solved by technology

Due to friction, the friction block will be gradually worn, reducing the friction coefficient of the brake pad. The friction coefficient of the brake pad determines the braking force of the vehicle. The reduction of the friction coefficient of the brake pad will lead to a decrease in the braking force of the vehicle, which increases the braking force of the vehicle. The braking distance poses a certain threat to personal safety

When the car brakes, the brake pads will have a lot of friction with the brake disc or brake drum, and the friction will generate a certain amount of heat. At present, the friction blocks of brake pads on the market are generally made of materials with poor thermal conductivity. If the heat is not dissipated in time, It will accumulate on the brake pads, making the brake pads soft and greatly reducing the braking performance of the brake pads. To achieve the same braking effect, you must brake multiple times, which generates more heat. When the brake pads reach A certain temperature will lead to brake failure, which greatly threatens the safety of the people on board.

At the same time, the heat on the brake pads will also be transferred to the brake caliper and its components and brake fluid, which will accelerate the aging of the brake caliper components and make the brake fluid boil, reducing the braking effect

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