Open mold selection of plastic mold raw materials

Plastic molds are inseparable from good plastic mold raw materials. Our company has always insisted on using advanced mold raw materials to ensure the quality required by customers.
What should we pay attention to when choosing plastic mold raw materials?
Wear resistance of plastic molds.
When the blank is plastically deformed in the mold cavity, it both flows and slides along the surface of the cavity, causing intense friction between the surface of the cavity and the blank.
As a result, the mold fails due to wear. Therefore, the wear resistance of the material is one of the most basic and important properties of the mold. Hardness is the main factor affecting wear resistance.
Fatigue fracture performance of plastic molds.
In the working process of plastic molds, under the long-term effect of cyclic stress, it often leads to fatigue fracture.
Its forms are low energy multiple impact fatigue fracture, tensile fatigue fracture contact fatigue fracture and bending fatigue fracture.
The fatigue fracture performance of the mold mainly depends on its strength, toughness, hardness, and the content of inclusions in the material.
High temperature performance of plastic molds.
When the working temperature of the plastic mold is higher, the hardness and strength will decrease,
Cause the mold to wear early or produce plastic deformation and fail. Because the mold material should have high stability against tempering,
To ensure that the mold has a high hardness and strength at the working temperature.