What does a foam worker in Shuang Ying, Liuzhou do?

Liuzhou Shuang Ying foam worker is a car seat foam worker. Seat foam is a molded product. Considering the production efficiency, jointless pro

What does a foam worker in Shuang Ying, Liuzhou do?

Liuzhou Shuang Ying foam worker is a car seat foam worker. Seat foam is a molded product. Considering the production efficiency, jointless production line is generally used for production. The foaming material of general seats is soft foam in polyurethane foam, and its manufacturing technology can be comparable to bread. However, the bread making process is mainly physical change, and polyurethane foaming is a complex physical and chemical process. At the initial stage of foaming, the molecular chain keeps growing, mainly linear molecules with low viscosity. When the reaction reached a certain stage and gel appeared, macromolecules began to cross-link, the viscosity of the material increased sharply and the fluidity decreased. The initial chain grows rapidly, and the heat released in the reaction process is large, so that the low-viscosity foaming material quickly fills the mold before the gel appears, forming a network porous polyurethane closed-cell foam.