Ping township oil seal Small make up to tell you The processing of rubber
This process includes plasticate, mixing, rolling, or the basic processes, such as extrusion, molding and curing each working procedure in view of the products have different requirements, cooperate with some auxiliary operation respectively.In order to adding all kinds of the compound rubber, raw rubber first need plasticate improve its plasticity;Then by mixing carbon black and all kinds of rubber additives and mixing rubber into rubber;Rubber blank pressed out into a certain shape;Make it again and after rolling hang glue or glue of textile materials (or) with metal material together forming semi-finished products;Finally after vulcanization and has the plastic semi-finished products made from the high elasticity of the final product.
For high accuracy products, oil seal, o-rings, seals and other rubber products, also need to trim, deflashing processing, can choose the way of artificial, mechanical beveling and frozen trimming.
Artificial trimming:
Low labor intensity, low efficiency, percent of pass.
Mechanical trimming:
Mainly include cutting, grinding wheel edge grinding and circular knife trimming, applicable to the specific products of accuracy is not high.
Frozen trimming:
Special frozen trimming machine equipment, its principle is to use liquid nitrogen (LN2) finished the burrs of brittle at low temperatures, the use of certain frozen particles (tiny) to strike burrs, to quickly remove burrs.Frozen trimming of the efficiency is very high, the cost is low, widely applicable products, has become a mainstream technology standards.
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