What is the main factor of stiffness of the injection mold?
Injection mold. At work to bear the brunt of the plastic melt high up to more than one hundred mpa. This pressure for precision plastic mould and large plastic mould, not only requires high precision, good stiffness and requirements.The main factors influencing the rigidity of injection mold are as follows.
The forming pressure of the injection mold structure is about 100 mpa, and the mould structure should be able to resist the reaction of the melt. If the structure design is improper, the rigidity of the injection mold will be affected.
Potassium mould material, if the mechanical strength of mould material is poor, cannot resist the forming pressure, and also reduces the rigidity of injection molding.
Load some plastic melt illiquid, (3) injection mold or mold flow long, requires the use of very high molding pressure, the higher load is very easy to make the mold appeared too large elastic deformation and impact stiffness.
In the process of assembling the molds, improper and uneven selection of clearance, fasteners' adding force, etc. may cause excessive elastic deformation of the molds and affect the rigidity.