After using SMC molds for a long time, we will find that some molds are suspected to be worn, and they are so worn that they can not be used. SMC FRP mold manufacturer asked: what is the problem that causes the wear of SMC mold?
The primary reason is the friction between the mold and the material, and the transmission teeth are on the inclined holes of the structure. The shape of non deformable plastic parts is often relatively complex, and it is difficult to process after quenching. Therefore, it is necessary to try to select those materials with excellent heat invariance. When the mold is processed and formed, the expansion coefficient becomes small after heat treatment, because the heat treatment deformation is small, the size transformation rate caused by temperature difference is also small, and the mold size remains unchanged. And the machining can be reduced or no longer carried out to ensure the dimensional accuracy and profile roughness requirements of the mold.
