A friction product

Abstract

The invention provides a friction product. The friction product can be prepared by 1) a step of providing a packaging bag, wherein the external surfaces of the packaging bag comprise a friction working surface and a horseshoe combining surface; the friction working surface is coated with a first mixed emulsion layer; and the horseshoe combining surface is coated with a second mixed emulsion layer; the material of the packaging bag is glass fiber cloth; the inner surfaces of the packaging bag are provided with protruding glass fiber fluff; the first mixed emulsion comprises 3-8 parts of aluminium oxide, 3-8 parts of zircon sand, 5-10 parts of nanometer copper powder, 5-10 parts of calcium hydroxide, 0.2-1 part of guar gum, 0.5-1.5 parts of a silane coupling agent and 100 parts of a styrene-acrylic emulsion; and the second mixed emulsion comprises 10-15 parts of quartz sand, 10-15 parts of zircon sand, 0.2-1 part of guar gum, 0.5-1.5 parts of a silane coupling agent and 100 parts of a styrene-acrylic emulsion; and 2) a step of adding a mixture of friction materials into the packaging bag and performing hot pressing to obtain the friction product. The friction product provided by the invention has advantages of a high initial braking torque and high friction performance, excellent impact strength, and no need of grinding inner and outer surfaces.

Description

technical field [0001] The invention relates to the technical field of friction materials, in particular to a friction product. Background technique [0002] At present, after the curing process of the friction material forming the friction plate, due to the presence of resin in its formula, and the fluidity of the resin is good, a layer of resin film will be formed on the surface of the cured friction plate. If the resin film on the outer surface, that is, the working surface, is not removed by grinding, it will affect the friction force in the initial state, resulting in too low initial friction force. If the inner surface, that is, the resin film on the surface that is attached to the shoe is not removed by grinding, it will cause sliding between the friction plate and the shoe under working conditions, which will reduce the riveting strength, so it must be ground off in the subsequent process The resin film on the inner and outer arc surfaces of the friction plate incre...

AI Technical Summary

Problems solved by technology

If the resin film on the outer surface, that is, the working surface, is not removed by grinding, it will affect the friction force in the initial state, resulting in too low initial friction force

If the inner surface, that is, the resin film on the surface that is attached to the shoe is not removed by grinding, it will cause sliding between the friction plate and the shoe under working conditions, which will reduce the riveting strength, so it must be ground off in the subsequent process The resin film on the inner and outer arc surfaces of the friction plate increases manufacturing and material costs and reduces production efficiency

[0003] In addition, the existing friction materials need to add fibers to ensure their strength during transportation and assembly. However, long fibers cannot be dispersed, so short fibers can only be added to the mixture. Such fibers are easily broken during mixing, reducing the overall strength of the product

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