A good set of plastic mold must also be inseparable from the good raw materials, mold in the Thai mold design for so many years, has always insisted on the use of advanced mold raw materials to ensure that the quality of customer requirements. That selection of plastic mold raw materials should pay attention to what it is a test of the technical problems of mold enterprises, the following, let the Shanghai plastic mold to talk about:
1, wear resistance. Billet in the injection molding mold cavity in the plastic degeneration, along the cavity surface both flow and slide, so that the cavity surface and the blank between the sharp friction, resulting in die due to wear and failure. So the wear resistance of the material is the most basic and most important performance of the mold. Hardness is the main factor affecting wear resistance.
2, fatigue fracture performance. Plastic mold work in the process, the long-term role in the cyclic stress, often lead to fatigue fracture. Its form has a small energy multiple impact fatigue fracture, tensile fatigue fracture contact fatigue fracture and bending fatigue fracture. The fatigue fracture properties of the mold are mainly determined by its strength, toughness, hardness, and the content of inclusions in the material.
3, high temperature performance. When the injection molding work temperature higher, will make the hardness and strength decreased, leading to early wear or plastic deformation of the mold and failure. Kunshan Daliang plastic mold that the mold material should have a high resistance to tempering stability, to ensure that the mold at the working temperature, with a high hardness and strength.