Subsea tunnel brake pad

Abstract

The invention relates to a subsea tunnel brake pad and aims to solve the problem of manufacturing a brake pad for the subsea tunnel. According to the following technical scheme, the material comprisesthe following components in percentage by weight including 8-10% of nitrile rubber, 0.5-1% of rubber accelerator, 0.5-1% of rubber vulcanizing agent, 0.3-0.5% of anti-aging agent, 8-10% of boron-modified phenolic resin, 3-5% of nitrile rubber powder, 4-6% of reduced iron powder, 2-3% of diatomite, 1-2% of silicon carbide, 1-2% of aluminum oxide, 4-6% of flame retardant, 1-2% of vermiculite, 1-2%of iron oxide black, 3-5% of clay, 6-8% of barium sulfate, 2-3% of flake graphite, 4-6% of wood fibers, 10-12% of polyvinyl alcohol fibers, 10-12% of soluble fibers and 6-10% of steel fibers. The subsea tunnel brake pad has the advantages that a friction body is mainly made of high polymer materials, and on the basis that the braking requirement is met, the product further has the characteristicsof being low in specific gravity, moderate in hardness, free of thermal damage to a braking dual surface, stable and comfortable in braking, long in service life and the like.

Description

technical field [0001] The invention belongs to a railway brake device, in particular to a brake pad suitable for a subsea tunnel. Background technique [0002] With the growth of population and the development of urbanization, land resources are becoming increasingly scarce, and human beings have higher and higher requirements for the environment. The characteristics of tunnels located underground can effectively save land and protect the environment, making tunnels a good choice. With the generalization of the use of underground space, and the advantages of tunnels to ensure driving safety, shorten the driving distance, and avoid disasters, the tunnel construction technology has also undergone qualitative changes. The development of tunnels also puts forward higher requirements for corresponding vehicle operation. Reducing energy consumption, reducing emissions, and improving safety have become the mainstream of its development. With the rapid development of my country's r...