Wednesday, June 1, 2011

Injection Molding Machines

The molding process was found in 1872. Since then, the plastic injection molding business and industry ballooned to a multi-billion dollar business. In fact, thirty-two percent of the mass processing of plastics injection molding. Injection molding greatly helped to boost the U.S. economy, because through it, cheap and durable consumer goods and industrial potential is essential to virtually every industry.

The components of the injection molding machine

The injection molding machine converts granular or pelleted raw plastic into final molded parts through the use of a melt, inject, pack and cool cycle thermoplastics.

A basic injection molding machine is typically composed of the following: injection system, hydraulic system, system of mold, clamping and control system. The clamp tonnage and shot size used for both identification of dimensions of thermoplastic injection molding machine, which is the main factor in the whole process. Other compensation of injection speed, pressure, screw design, the thickness of the shape and distance between tie bars.

Functions of the machine

The injection molding machine can be divided into three categories, namely: the general-purpose machines, precision / tight tolerance of the plant and thin-walled high-speed machines. All three required additional equipment. These support facilities include dryers (resin) material handling equipment, granulators, mold temperature controllers and chillers, part-handling equipment and parts-removal robots.

Many companies specializing in high-quality injection molding, but they are not all alike. The best of the fast, flexible and customer driven both small and large quantities. These companies usually state-of-the-art facility full of thermoplastic and thermoset capabilities, computer-aided manufacturing, skilled machine operators and quality assurance teams.

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