Study on Influencing Factors of High-temperature Rapid Molding Product on the Rehabilitation of Mold Cavity

摘要

Impact of product on the replication performance of mold cavity was tested and studied in the high-temperature rapid molding process based on high-fitness mold for in-vehicle Bluetooth module compartment cover. The results indicated that the main difference between high-temperature rapid molding and common molding is that when the mold temperature rises to around the plastic heat distortion temperature, the product's reproduction rate of the mold cavity surface is improved significantly. In the area lower or higher than the plastic heat distortion temperature, the changes on mold temperature hardly influence the reproduction rate of product and the impacts of other parameters are similar to those of common molding; the impacts of major molding parameters on the product mass from large to small are "packing pressure- dwell time- injection time- mold temperature- injection pressure- melt temperature".