subject: brief introfuction to the gasket [print this page] Gaskets are commonly produced by cutting from sheet materials, such as paper, rubber, silicone, metal, cork, felt, neoprene, fiberglass, or a plastic polymer. If some specific requirements are needed, gaskets are made including asbestos. Sometimes, sealant is employed directly to the gasket surface to function properly.
According to the different designs based on industrial usage, budget, chemical contact and physical parameters, there are some different type of gaskets, such as the liner gasket. Now, some major types are introduced here.
A sheet gasket is commonly a very crude, fast and cheap gasket. The material for this kind is simply a sheet of material which used to be compressed asbestos, but now generally a fibrous material such as graphite. The disadvantage of this kind in the industrial process is the restrictions of the tolerant temperature and pressure.
Then another cheap kind is a solid material gasket. It uses metals which can not be punched out of sheet. Unlike the previous type, this type is able to bear much high temperature and pressure with a much higher level of quality control. But it holds it defects. One is that it should acquire great compress to achieve the function for preventing leakage. And the compress should not great enough to destroy the other attached objects. Thus, the metal used must be softer. The other one is that the source and choice for the metal are limited.
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