What is the function of extruder screw?

Name and function of three-stage screw in single screw extruder;

The function of the feeding section is that the depth of the spiral groove in this section is fixed, and its function is to be responsible for preheating, conveying and pushing plastic solids. It must be ensured that the plastic begins to melt at the end of the feeding section. Hua Hong replied.

Compression section, its function is: this section is the depth of the thread groove of the conical screw, and its function is melting, mixing, shear compression and pressurized exhaust of plastic raw materials. The plastic will completely dissolve in this part, and its volume will be reduced. The design of compression ratio is very important. The homogenization section is used to fix the depth of the spiral groove, and its main functions are mixing, glue conveying and metering. It must also provide enough pressure to keep the temperature of glue uniform and stabilize the flow rate of molten plastic. Hope to adopt