Taizhou longthin Co., Ltd.

Taizhou longthin Co., Ltd.

plastic injection machine

2024 04/24

Because of the fountain flow, the polymer chains in front of the flow wave line up to the almost parallel flow wave front, so when the two plastic sols meet, the polymer chains on the contact surface are parallel to each other, in addition, the different properties of the two strands of sol result in the weak microstructural strength of the junction area of Sol, this is the formation mechanism of Weld Marks, Weld marks not only affect the appearance of plastic, but also because of the loose microstructure, easy to cause stress concentration, which makes the strength of the part reduced and produced fracture