The second extrusion molding condition -- section analysis and process conditions

The target profile belongs to the threading box type profile, which is mainly used in the scope of cable and wire protection pipelines. This section includes a single arm and a cavity, which is representative. Although the structure is relatively simple, there are generally high requirements for the flatness and brightness of the outer surface of the single arm, and because of its large width, the absolute value of the single arm shrinkage is relatively large. The stable cooling effect is very easy to cause mold jamming and blockage, which brings difficulties to debugging and production. The main parameters of the product are as follows: production speed≥1.5 m/min, wall thickness tolerance±0.1 mm, shape tolerance±0.2 mm, meter weight 1.48 kg/m±2%.

Combining the section and material performance parameters, the main production process parameters can be preliminarily set as follows: screw temperature 85°C; The pressure is 25 MPa; the temperature of the connecting body is 220°C; the temperature in zone 1 of the mold is 220°C, and the temperature in zone 2-5 is 230°C; the vacuum degree of the main machine is -0.06 MPa.

JE is a factory specializing in plastic extrusion production, for moredetails, please refer to:

www.jeledprofile.com

Or please contact:sales@jeledprofile.com

Tel/Whatsapp/Wechat: 0086 13427851163