Introduktion till kunskapen om extruderingssilikonprocessen

Extrudering är en mycket användbar och praktisk metod för bearbetning av silikongummiprodukter för att tillverka stavar, rör, remsor och packningar i olika standarder och former som är formade till komprimering .

The rubber compound is first warmed on the grinder and then fed directly into the extruder in the successive strips. An extruder basically consists of a cylindrical piece or cylinder in which the screw rotates. The rubber strip introduced into the extruder is grabbed by the screw with which its thread is carried and oriented towards the end of the cylinder with the orifice or die of the desired form .

The rubber mixture, which is heated by energy treatment and ejected under negative pressure, has a contiguous shape. Obviously, it is possible to make a wide variety of products by extrusion. The best example is the tire tread, which flattens the extruder. It is cut to the right length and assembled on the drum of the tire building machine together with other components such as cord, fabric lager, pärla, etc .

During extrusion, try to keep a low temperature, not more than 40℃, so the barrel and screw must be through cooling water. For products with high quality requirements, 80~140 mesh filters can be installed near the machine head to remove impurities in the rubber compound and improve the extrusion quality. Silicone rubber extruded semi-finished products are soft and easily deformed, so they must be vulcanized Omedelbart .