Weld lines are an important factor affecting quality of plastic parts. Study found that under same process conditions, strength of weld line area is only 10-92% of original material, which seriously affects normal use of injection molded products. For example, in automobile industry, unqualified plastic parts directly lead to decline of automobile quality, even endanger safety of human life. Therefore, it is of great practical significance to study formation process of weld lines, influencing factors and to find ways to eliminate weld lines.
Gud Mould 