2014年10月11日星期六

a cavity of a mold

Injection molding is an important method of plastic molding, which is mainly  applied to thermoplastic molding, can be a complex shape forming of precision plastic parts. The issue is the plastic dome as the design model, will injection mold-related knowledge as a basis to explain the process of plastic injection mold design.  Plastic dome on the right molding process analysis, design of a cavity of a mold of a plastic mold. Plastic Mould decided to geometric shape and size of the parts as molded parts, including the former template, before the mold, after the template, after the mold, after the mold inserts, Bevel Pillar, slider, etc. Design and Manufacture of process . Molding parts with plastic in direct contact with the work, at a certain temperature to withstand high temperature and high pressure melt, it must have a reasonable structure, high strength and rigidity, good wear resistance, the correct geometry , high dimensional accuracy and low surface roughness. Important part of the process parameter selection and count the bodies and the gating system and other structural design process.  Design molding parts should be under the plastic properties of the structure and use of plastic parts required to determine the overall layout of the cavity, select sub-surface to determine the stripping method, designed gating system, overflow systems, scheduling, and then processing and assembly process requirements of forming components structural design, calculation of the work of forming parts size, the shape of key parts for Strength and Rigidity.

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