Extruder, that is, screw extruder, is relying on the pressure and shear force generated by the rotation of the screw, can make the material can be fully plasticized and evenly mixed, through the mouth molding.
The use of extruder:
1, pipe extrusion: for PP-R pipe, PE gas pipe, PEX crosslinked pipe, aluminum-plastic composite pipe, ABS pipe, PVC pipe, HDPE silicone core pipe and a variety of *** extrusion composite pipe.
2, plate and sheet extrusion: for PVC, PET, PS, PP, PC and other profiles and sheet extrusion. Extrusion of various other plastics such as silk, rods and so on.
3, profile extrusion: adjust the speed of the extruder and change the structure of the extrusion screw can be applied to the production of PVC, polyolefin and other plastic profiles. Modified pelletizing: suitable for various plastics **** mixing, modification, enhancement of pelletizing.
Injection molding machine is also known as injection molding machine or injection machine. It is the thermoplastic plastic or thermosetting plastic using plastic molding molds made of various shapes of plastic products of the main molding equipment. Divided into vertical, horizontal, all-electric type. Injection molding machine can heat the plastic, the molten plastic to apply high pressure, so that it is shot and filled with mold cavity.
The use of injection molding machine:
Injection molding machine has the ability to mold complex appearance, precise size or with metal inserts of dense texture of plastic products, is widely used in national defense, electromechanical, automotive, transportation, building materials, packaging, agriculture, education, health and people's daily lives in various fields. In the rapid development of the plastics industry today, the injection molding machine, whether in terms of quantity or variety occupies an important position in the total production of plastic molding equipment accounted for 20% -30%, thus becoming the fastest-growing plastics machinery, the production of one of the largest number of machine types. According to relevant statistics, 1996 - 1998, China's exports of injection molding machine 8383 sets (sets), imports of injection molding machine 42959 sets (sets), of which in 1998 China's production of injection molding machine reached 20,000 units, and its sales accounted for the total sales of plastic machine 42.9%.