What is a cold material mold without runner

In general, in the process of injection molding, molten materials from the nozzle into the mold, through the mainstream channel, diversion channel and gate into the cavity, and in the mold plastic cooling, solidification into cooling, and products with the belt. Therefore, when entering the second injection molding cycle, the molten material needs to consume part of the heat energy and form new and useless cold flow passage. In order to overcome this shortcoming, it is envisaged that whether the material can always be kept in the melting state by maintaining the temperature of the flow passage, and the cold material of the flow passage is not formed, so as to develop a cold material mold without flow passage.


Post time: Apr-22-2021