What are the main factors that affect the life span of injection mold?
The life of injection mold is the total number of plastic parts that can be produced under the premise of ensuring the quality of product parts.For various reasons, the injection mold can no longer produce qualified products, which is the end of life.The main factors affecting die life are as follows.
The mold structure should be able to bear the load applied at work, if the structure is not reasonable, the mold will be plastic deformation, which will reduce the die life.If there is a stress concentration, under the action of strong forming pressure, it is easy to cause stress concentration and rupture, which affects the die life.
(2) different mould materials materials, carrying capacity is also different, a lot of die failure is caused by the material won't wear resistance friction damage, therefore, should choose can carry is a high-performance materials, in order to improve die life.
(3) through a variety of mold processing quality mold parts processing, such as machining, electrical discharge machining, heat treatment, etc., in the processing are likely to make the parts damaged and influence the die life.If in parts quenching. Surface uneven heating, cooling rate, usually caused by differences in the performance of the workpiece surface. This difference makes arrived in hangzhou at work load capacity is different, make influence local excessive wear or fatigue damage and life.
Injection mold of the equipment situation (4) is installed in the injection molding machine Bi work, good or bad, high precision injection molding machine performance is low, have a great effect to the life of injection mold, and if the injection molding machine in the clamping strength is not appropriate, or action is not accurate, make unnecessary to collide mould or deflection, mold flash. Die life is greatly reduced.
(5) the mold clamping of the general mould should pass frequently used, lock, injection, pressure maintaining and cooling, mould opening, use such as process. In the process of mould frequent movement, light, flexible, need to keep moving parts.For this purpose, it is necessary to ensure that the moving parts are clean and well lubricated, otherwise, the life of the die will be affected.