Analysis of Injection Molding of Light Guide Strip for Car Light

Wall Thickness and Common Defects in Injection Molded Products

The wall thickness of common injection molded products is generally 1--4mm, because when the molding wall thickness is greater than 5mm, plastic parts are easy to produce
Defects such as sink marks, shrinkage holes, depressions, bubbles, short shots, etc. Transparent plastic has stricter requirements on appearance quality, and there is no flow
Marks, pores, black spots, whitening, discoloration, poor gloss, etc., for transparent plastic parts with special requirements, such as lenses,
Optical components such as car lights must also meet the requirements of light transmission 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 [20], study the shape of product defects
In order to guide the mold design, formulate and optimize the injection molding process,
It is of great significance to improve product quality and increase production and processing efficiency.

Innovations in Production and Design Enabled by CAE Simulation

In the production process of injection molding products, CAD can help designers solve product shape design problems.
Tool design drawings help designers optimize design schemes and improve design efficiency. Injection molding CAE technology is based on
Computer software is used as a tool to establish the flow and heat transfer of plastic melt in the mold cavity through rheology and heat transfer theory
The mathematical model is solved by numerical calculation method, and finally the simulation analysis of injection molding is realized, and the plastic is simulated during molding.
The dynamic filling, pressure holding, cooling and other processes of the injection molding process help to study the change law of injection molding processing conditions [21-22].
The application of injection molding CAE technology has enabled people to understand the design and production of injection products from macro to micro, static
A leap from state to dynamic. Through CAE simulation analysis during product design, mold design and molding test, research products
For possible problems in design and mold design, the design plan and process parameters can be revised in time to reduce design defects
Reduce the risk of mold trial and repair, shorten the design and production cycle of products, and improve product quality and work efficiency