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Technological factors of structural foaming: 1. Injection speed In order to obtain foamed injection molded products with uniform cell size and cell distribution, the injection speed must be fast, which is to ensure that all foam is produced inside the mold cavity rather than outside the mold cavity. If the injection speed is slow, the time for the bubbles to flow through the nozzle and gate will be longer, which will produce uneven sized bubbles.

Characteristics, advantages and disadvantages of structural foam injection molding process Structural foam injection molding is a relatively new injection molding technology, and many injection molding methods of structural foam have been developed. For example, single component method and two-component method; Low pressure method, medium pressure method, high pressure method; There are also methods named after many companies’ research and experiments, such as BASF method, GE method, etc. Structural foam can be made into products with

Defects and Solutions of Transparent Plastic Injection Molding Parts • 1. Craze: due to the influence of anisotropy of internal stress during mold filling and condensation, the stress generated in the vertical direction makes the resin flow upward orientation, while the refractive index is different from that of the non flow orientation, resulting in flash lines. When it expands, it may cause cracks in the product. In addition to the attention paid to the injection

Introduction to Injection Molding Process of Transparent Plastics 1. Characteristics of commonly used transparent raw materials Due to the high light transmittance of transparent plastics, the surface quality of plastic products must be strict, and there must be no defects such as stripes, pores, whitening, haze, black spots, discoloration, and poor luster. Therefore, strict and even special requirements must be paid attention to and put forward for the design of raw materials, equipment, molds, and

How to find an injection molding factory In recent years, more and more people have started to enter the real industry with the help of new models such as the Internet and crowdfunding. Finding a reliable injection molding factory to put products into mass production has become the core. So, how should we choose a high-quality and reliable injection molding factory? 1、 Professional competence First of all, we should conduct a 360 degree inspection of