The injection unit is the most important part of the injection machine .The function is plastifying and injecting the plastic by heating and pressure in theinjection machine.The main types of the injection unit of theinjection machineare plunger type ,the screw plastic type , reciprocating screw injection type.For now ,the most common type is reciprocating screw injection type.
The plasticizing way of plunger type is melting and plasticizing the plastic by the outside heating. The poor heat-conducting property lead to the poor plasticizing and the uneven temperature. It is always used in small injection molding machine.
Compared with the the plasticizing way of plunger type ,the quality and the efficiency of the plasticizing is better. It is mostly used in continuous injection and large injection equipment.
The plasticizing of reciprocating screw injection type is of good quality.The injection speed is quick and injection pressure loss is small.
In the DAKUMAR injection machine ,PID temperature control in combination of high precision and control regulate the speed and the pressure of injection,pressure keeping,smelting,back pressure and other motions to ensure the quality of formed products and continuation of production.There are seven kinds of injection machines inDAKUMAR machinery .If you have any needs, please contact me ,Miss MAY !
E-mail:dkm@dakumar.com
MSN:dkm@dakumar.com

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