The Role Of Pressure Maintaining
The role of DKM injection molding machine pressure maintaining: after the mold cavity is filled with plastic until the gate is completely cooled and closed for a period of time, the plastic in the mold cavity still needs a quite high pressure support, to supplement the shrinkage of the material due to cooling. Different shrinkage of materials, will produce different problems, such as product depression, deformation warping, abnormal size, batch front, so master the use of pressure, can solve most of the bad injection molding. Products in cooling in the mould is different: near the gate of the slow cooling, far gate cooling fast, the temperature distribution of the products is nearly gate to the remote, the temperature is gradually reduced, which is the distant part of the curing finalize the design, gate stage of material is still in the flow, so between them at the same time is gradually changing. Material is in high temperature and high pressure under the condition of high speed fro...