In this post I will explain construction injection mold classification. Injection mold classification depend on structure plastic parts. If a sample has compound shape, the mold is more difficult than simple shape, and we design mold we need to take care injection machine, number of cavities, plastic material,… of customer.
injection molding design
Design sprue gate or direct gate is the simplest and oldest kind of gate. it connects directly end sprue to the molding. It has a circular cross-section, is slightly tapered, and merges with its largest cross-section in to the part. The sprue gate always is at the thickest section of the product. It uses for […]
Design ring gate of injection mold is special of disk gate. It is used for cylindrical or round parts in a multi cavity mold or when a diaphragm gate is not practical. Melt materials enter the mold by by ring gate can improve weld line defect. There are 2 main types of ring gate: inside […]
We usually design disk gate if shape of a product is a trough hole sleeve like moldings, which need a mounting of the core at both ends. It Used in the case of single cavity, or when placing the gate directly to the base of the molded product. Residual strain tend to occur because the […]
Design flash gate will be applied to the plate shaped molded product. This type is effective at preventing deformation by suppressing residual strain. It appears a litter in mold design. You can read all the content about gate design at here. 1. Advantages and disadvantages of flash gate. A. Advantages. + Flash gate usually use […]
Design side gate is the most generally of mold design, and used well in multi-cavity mold. Its shape is a rectangle or semicircle, and placed at side of the molded product. It can use for a product with small side or middle thickness because gate structure is easy and don need high quality. […]