Rubber processing:
This process involves the mastication, mixing, rolling or extrusion, molding and curing the basic processes, each process has different requirements for the products were in line with the number of auxiliary operations.
To be able to join all the necessary ingredients in rubber, raw rubber first need to improve their plasticity after plasticating; then all kinds of carbon black and rubber chemicals and synthetic rubber material by mixing evenly mixed; plastic material through the pressure a certain shape made of billet; then hang it with glue or adhesive through the calendar of textile material (or metal material) together formed into semi-finished products; and finally turn after curing has a plastic semi-finished products made of high elasticity of the final product .
For relatively high precision products, oil seals, O-rings, seals and other rubber products, but also the need for trimming, deburring process, the choice of the way artificial trimming, machinery and frozen trimming trimming. Artificial trimming: labor-intensive, low efficiency, low pass rate.
Mechanical trimming: There punching, grinding wheel and circular knife trimming applies to less precision specific products.
Frozen trimming: Private frozen trimming machine equipment, the principle is the use of liquid nitrogen (LN2) to make the finished edges brittle at low temperatures, using a specific freezing particles (pellet) to hit the edges, in order to quickly remove the burr. Frozen trimming high efficiency, low cost, widely used products, has become the mainstream technology standards.
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