Injection Mold

People with knowledge of thermosetting plastic mold may know that the injection mold product is thin-walled; the size of product thickness directions is much smaller than the size of the other two directions. Physical quantities such as temperature are of big changes in the thickness directions, if adopting simple finite element or finite difference methods, it shall eventually cause long analysis time, and shall be unable to satisfy the actual needs of mold designing and manufacturing. We use the finite element method in the flow plane and the finite difference method in the thickness direction to establish grids suitable for the size of the flow plane and the thickness direction and perform coupled solutions to make the calculation speed meet the needs of the project under the premise of ensuring the calculation accuracy.

Injection Molding Introduction

Injection molding is an engineering technology, which involves converting plastics to useful products with original performance. The injection molding method of thermoplastic plastics is to melt plastic materials, and then make them inflow to molding chamber. After the melted plastics enter into mold, it will form a certain shape according to molding chamber after cooling. The obtained shape is normally final finished product, no other processing is necessary before its installation or being used as final finished product. Some details, such as protrusion, rib, thread, can be formed at one time during injection molding operation.