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The basic knowledge of plastic mold and technology application

Author: Popularity: Issuing time:2016/10/11 10:39:33

In recent years, with the rapid development of plastic industry and general engineering plastics and strength and precision in areas such as continuous improvement, the application of hollow plastic products are also expanding, such as: household appliances, instrumentation, construction equipment, automotive industry , Daily-use hardware, and other fields, the proportion of plastic products is rapidly increasing. A well-designed plastic part can often replace a number of traditional metal parts. Industrial products and household products, the trend of plastic is rising.

Our daily production and life in the use of a variety of tools and products, as large as the base of the machine, body shell, a small screw to the embryo, buttons and a variety of household appliances shell, all with the mold has a close relationship. Mold shape determines the shape of these products, mold processing quality and accuracy also determines the quality of these products. Because a variety of products, materials, appearance, specifications and use of different molds are divided into casting mold, forging die, die-casting mold, stamping die and other non-plastic mold, and plastic mold.

    The general definition of mold: In industrial production, with a variety of presses and special tools installed on the press, through the pressure of the metal or non-metallic materials to produce the desired shape of the parts or products, such special tools collectively referred to as mold. Injection Molding Process Description: Mold is a tool for the production of plastic products. It consists of several sets of part parts, this combination has a molding cavity. Injection molding, the mold clamping in the injection molding machine, the molten plastic is injected into the molding cavity, and cooling in the cavity stereotypes, and then separate the upper and lower mold, the top of the system from the top of the mold cavity from the mold, the last mold closed For the next injection, the entire injection cycle is cycled.

The general classification of mold: can be divided into plastic mold and non-plastic mold:

(1) non-plastic mold with: casting mold, forging die, stamping die, die casting molds.

A. Casting mold faucet, pig iron platform

B. Forging mold car body

C. Stamping die computer panel

D. Die-casting mold super alloy, cylinder block


(2) plastic mold according to the production process and production of different products are divided into:

A. injection molding die TV shell, the keyboard button (the most common)

B, blow mold beverage bottles

C. Compression Mold Bakelite Switch, Scientific Porcelain Bowl

D. transfer of mold integrated circuit products

E. Extrusion molding plastic pipe, plastic bags

F. Thermoforming Molds Transparent molded packaging

G. Rotary molding soft doll doll toys