Injection Molding Technology And Knowledge Information Of The Injection Mold Of The Autolamp Light Guide Strip

The wall thickness of common injection molded products is generally 1--4mm, because when the molded wall thickness is greater than 5mm, plastic parts are prone to sink marks, shrinkage holes, depressions, bubbles, undershot and other defects. Transparent plastics have stricter requirements on appearance quality, and there should be no flow marks, pores, black spots, whitening, discoloration, poor gloss and other problems. For transparent plastic parts with special requirements, such as lenses, car lights and other optical components Requirements for light transmittance and thermal stability. The formation of defects in the injection product is mainly due to the mold design
Calculate the results of the interaction of processing, material properties, molding mechanical properties and injection molding process , study the formation mechanism of product defects, summarize their generation rules, and summarize solutions to guide mold design, formulate and optimize injection molding processes, and improve products Quality and improving the efficiency of production and processing are of great significance. In the production process of injection molded products, CAD can help designers solve the problem of product shape design, design drawings of injection molds, and help designers optimize design plans and improve design efficiency. Injection molding CAE technology uses computer software as a tool, through rheology and heat transfer theory, establishes a mathematical model of plastic melt flow and heat transfer in the mold cavity, uses numerical calculation methods to solve it, and finally realizes injection molding simulation Analyze and simulate the process of dynamic filling, holding pressure, and cooling of the plastic during molding, and help to study the change law of injection molding processing conditions [.
The application of injection molding CAE technology has made people's understanding of the design and production of injection molded products leap from macro to micro, static to dynamic. Through CAE simulation analysis during product design, mold design and molding test, study possible problems in product design and mold design, and timely modify design schemes and process parameters, reduce the risk of design defects, and reduce test and repair work Quantity, shorten the design and production cycle of products, improve product quality and work efficiency