Understanding and Optimizing Weld Lines in Thermoplastic Molding

April 5, 2018

Weld lines (also called knit lines) are surface defects that form during mold filling when flow fronts come together at sufficiently small interface angles. This typically happens where flow fronts rejoin after holes or where flow fronts merge from two or more gates. In addition, being unsightly, weld lines can also be weaker than the surrounding area. For these reasons, it is important to understand how weld lines form, and how to optimize their appearance and strength.

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Gübre Fabrikaları T.A.Ş.

GÜBRETAŞ (Gübre Fabrikaları Türk A.Ş.) was founded in 1952 to provide fertilizers to Turkish Agricultural Sector. GÜBRETAŞ has always been the pioneer in his sector.

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