jasonmolding
JasonMould is a leading injection moulding https://www.jasonmolding.com/ manufacturer specializes in plastic mould production for household appliances, medical equipments, electronic equipments, safety equipments as well as monitoring system. JasonMould offers tools from small and precise mobile phone parts to as big as automotive parts. Our mission is to provide our customers high quality moulding products and services
WELDING LINE IN PLASTIC INJECTION MOLDING PROCESS
Weld lines refer to the lines that occur on a plastic product surface when the cold slug melts. In areas of mold cavity where the molten plastic meets inserts or holes, areas with inconsistent flow speed/flow interruptions, where multiple flows meet or when jetting happens during mold filling, linear weld marks tend to occur due to imperfect bonding. The existence of weld lines greatly compromises the mechanical strength of a product. The solution for overcoming weld lines is similar to that for reducing product sagging. Weld lines can be caused by many reasons, which covers the various aspects of mold, process, raw materials and product design, etc.
