What problems TPE thermoplastic elastomer prone ? TPE thermoplastic elastomer affected by the injection molding process conditions that can occur four points , including plastic molding incomplete overflow , holes, bubbles, etc. Obscure crazes and charred .
　　
　　Plastic molding incomplete mainly because of improper TPE thermoplastic elastomer feed regulation , lack of material or a multi- material, the injection pressure is too low , slow , or result in the injection plunger or screw a short time returned too early, or because the material relatively low temperature , this causes.
　　
　　Flash fly because the injection pressure is too high or too fast injection , resulting in feeding large side , barrel or nozzle temperature is too high or the temperature is too high will cause mold plastic viscosity decreased , increased mobility , resulting burrs situation .
　　
　　Porosity , crazing and bubbles TPE thermoplastic elastomer is too high because of the material temperature , generation of decomposition , the small injection pressure, and will not melt the surface of the cavity surface is not dense paste . When pre-plastic screw back pressure is too low, the speed is too high , the screw return fast, easy air into the cylinder together with the front end of the material .
　　
　　TPE Thermoplastic elastomer scorch obscurus , or due to excessive length of the injection speed of the injection cycle , the injection pressure and pre-molded high back pressure , and high temperature and the nozzle barrel result .