Coconut carbon compound type brake pad and preparation method

Abstract

A preparation method of a coconut carbon compound type brake pad is that the rate of coconut carbon, silicon oxide, carburant, barium sulfate, brown aluminum oxide, vermiculite, carbon fibers, petroleum coke, nitrile butadiene rubber copolymerization modification phenolic resin and steel fibers is 35-45 to 3-5 to 5-8 to 10-12 to 4-5 to 2-5 to 3-5 to 5-7 to 6-8 to 8-10, the carbon fibers in a formula are evenly stirred in a high speed stirring machine to be standby, other raw materials in the formula are arranged in the stirring machine to be evenly stirred, the stirred carbon fibers and other raw materials are stirred together for 5 to 10 minutes, the materials are arranged in a sheet type mould or a disk type mould of a mould machine and then are arranged in a mould pressing machine to be molded and pressed, simultaneously the materials are pressurized and heated for 16 to 19 minutes, pressure is between 14 to 14.5MPa, temperature is between 130 DEG C to 148 DEG C, pressure is released, the materials are stopped being heated, the mould is taken out, the brake pad is poured out to be ground and polished on a grinding machine to achieve a product.

Description

technical field [0001] The invention relates to a braking part of operating equipment, specifically a coconut-carbon composite brake pad and its preparation method, which solves the existing problems of high hardness, damage and friction, high noise, excessive powder, environmental pollution and other problems in the prior art. The problem of rapid thermal decay and unstable friction coefficient. Background technique [0002] At present, the brake pads used in oil field drilling rigs, workover rigs and some large engineering vehicles mostly have metal brake pads, metal-free brake pads, carbon-based brake pads and asbestos-based brake pads. These brake pads mainly have the following disadvantages in operation: There are metal brake pads that are too hard, the brakes are not effective and the brakes are damaged; the friction coefficient of carbon-based brake pads is small and the brakes are unstable; the hardness of asbestos-based brake pads is too small, the service life is s...

AI Technical Summary

Problems solved by technology

[0002] At present, the brake pads used in oil field drilling rigs, workover rigs and some large engineering vehicles mostly have metal brake pads, metal-free brake pads, carbon-based brake pads and asbestos-based brake pads. These brake pads mainly have the following disadvantages in operation: There are metal brake pads that are too hard, the brakes are not effective and the brakes are damaged; the friction coefficient of carbon-based brake pads is small, and the brakes are unstable; the hardness of asbestos-based brake pads is too small, the service life is short, and more asbestos powder is produced, polluting the environment, no metal ceramic type Brake pad (Patent No.: IL200610068631.2) is an ideal brake pad because it eliminates the defects of the above-mentioned brake pads. In addition, it is difficult to purchase materials, which affects the normal production of brake pads