How are rubber wires processed?
In the production of rubber products, vulcanization is the last process.Vulcanization is a crosslinking process in which rubber molecules change from linear structure to network structure under certain conditions. Curing methods are cold vulcanization, room temperature vulcanization and heat vulcanizing three kinds. Most rubber products are vulcanized by heat. Hot vulcanizing equipment, vulcanizing pot, flat vulcanizing machine, etc.. Rubber wires and cables are vulcanized by continuous hot air.
Rubber wire, mainly refers to the insulating layer and the jacket is made of natural rubber, styrene butadiene rubber, ethylene propylene rubber, in addition to meet the insulation properties and physical mechanical properties, aging resistance, abrasion resistance requirements, some products require oil resistant, flame retardant.
[summary] the main raw material is rubber, rubber products with various agents, as well as the fiber and metal skeleton material, the basic production process of rubber products including plastication, mixing, calendering, extrusion, molding, curing 6 basic processes.The processing process of rubber is mainly to solve the process of plastic and elastic contradictions, through various means of processing, the elastic rubber has become the plastic rubber, adding various in the preparation of semi-finished products, and then through the vulcanization is has semi-finished plastic and rubber products into high elasticity and good mechanical performance the.
Extrusion processExtrusion process is through extrusion machine, barrel, cylinder wall and screw member role, so that the plastic to achieve extrusion and preliminary shape purposes, extrusion process, also known as extrusion process.Extrusion process is the main equipment extruder.Extrusion characteristics of several rubber: natural rubber extrusion speed, shrinkage of semi-finished products is small. The body temperature 50-60, head of 70-80 C, 80-90 type C; styrene butadiene rubber extrusion speed, compression deformation, surface roughness, body temperature 50-70, the temperature of 70-80 DEG C, die temperature is 100-105 DEG C; chloroprene rubber extrusion without sufficient thermal refining, body temperature of 50 DEG C, nose, mouth and 70 DEG C; ethylene propylene rubber extrusion speed, small shrinkage, body temperature 60-70, the temperature of 80-130 DEG C, C type 90-140. Acrylonitrile butadiene rubber extrusion performance is poor, extrusion should be fully hot refining. The body temperature is 50-60 degrees, and the nose temperature is 70-80 degrees centigrade.
