Non-asbestos roller press board and beater addition process of same

Abstract

The invention discloses a non-asbestos roller press board including, by weight, 80-120 parts of aramid fiber pulp, 60-100 parts of carbon fiber, 100-140 parts of reinforcing fibers, 220-270 parts of white carbon black, 130-170 parts of kaolin, 80-120 parts of sericite, 400-440 parts of latex, 22-28 parts of a modifier, and 50-70 parts of an additive. The roller press board is green and environment-friendly, is high in density and good in compression and rebound performances, has excellent bolt torque force resistance and is excellent in compactness. The invention also discloses a preparation method of the non-asbestos roller press board. The production process is free of usage of benzene and toluene, is environment-friendly and belongs to full-automatic one-time sizing shaping, is suitablefor industrial large scale production and is energy-saving and high-effective.

Description

technical field [0001] The invention relates to the technical field of sealing material production, in particular to an asbestos-free rolling plate and a process for making it. Background technique [0002] At present, internal combustion engines, mechanical equipment, refrigeration equipment and various pipeline flanges all need to use high-temperature and high-pressure sealing gasket materials, mainly asbestos-free rolled plates. [0003] But there is following defect in existing non-asbestos rolling plate: [0004] (1) Low density, low strength and low compression resistance; [0005] (2) The dry production process is adopted, and the solvent is benzene, xylene or gasoline. As we all know, benzene and xylene are serious carcinogens, which are easy to volatilize and pollute the environment. Although there is a solvent recovery system, about 20% of the solvent will still volatilize into the atmosphere, resulting in serious environmental pollution. With the state's contro...

AI Technical Summary

Problems solved by technology

As we all know, benzene and xylene are serious carcinogens, which are easy to volatilize and pollute the environment. Although there is a solvent recovery system, about 20% of the solvent will still volatilize into the atmosphere, resulting in serious environmental pollution.

With the country's control of environmental pollution, the existing production process no longer meets the country's environmental protection requirements

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