The basic structure of injection mold

The structure of the injection mold is determined by the form of the injection machine and the complexity of the parts. During injection, the moving mold and the fixed mold are closed to form the cavity and the casting system and when mold opening,…

How to calculate the injection molding cycle?

The injection cycle of an oil pressure drove injection molding machine refers to the period from the beginning of mold closing to the end of the next mold closing. Injection molding is a cyclic process. The molding cycle is mainly composed of…

What’s is vacuum forming?

Vacuum forming (plastic uptake) is a kind of hot forming plastic processing technology. Its principle is that heating the flat plastic sheet and make it soft and then adsorption on the surface of the mold with vacuum, molding after cooling. Although…

Why hot runner system is popular in molding?

According to the different casting system, the mold can be divided into: large nozzle mold, fine nozzle mold, hot runner mold. The hot runner mold is located in one or more hot runner plates with constant temperature and the hot runner mouth…
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A brief introduction of crystallization plastic processing technology

The crystallinity and morphology of crystalline plastics affect the physical and mechanical properties of the products. The slow cooling speed is beneficial to improve the crystallinity. It is very important to get good mechanical properties…

A brief introduction of PA66 injection molding

PA-66 is a type of thermoplastic resin, also known as polyhexanediamine, was first invented by the American company DuPont. Polyamide plastic products are widely used as various mechanical and electrical parts, including bearings, gears, pulley…

Process control of molding injection

Process control of molding injectionTherefore, in order to ensure the quality of products, it is necessary to control the injection molding process, which including filling process control, pressure-maintaining process control, pressure-maintaining…

A breif introduction of PMMA plastic injection molding process

PMMA is poly(methyl methacrylate), also known as plexiglass, sub - force, was invented by German chemist o. Rohm in 1902. Because PMMA has very poor surface hardness, impact resistance and molding fluidity and other shortcomings, PMMA modified…

What are the factors affecting the fluidity of thermoplastics?

In the molding process, the ability of plastic melt to fill the mold cavity at a certain temperature and pressure is called the fluidity of plastic. The quality of plastic fluidity, to a large extent, directly affects the parameters of the molding…

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