The popularization of PVC film structure foam molding is a chemical foaming method, which is a revolution in injection molding technology. It retains many advantages of the traditional injection molding process, and avoids some of the problems encountered in the traditional injection molding process, such as insufficient product strength, too long production cycle, and low molding rate.
In addition, the use of structural foaming technology can also mold large and complex products, use low-cost molds, and multiple mold cavities can be operated at the same time, thereby reducing product production costs. Structural foamed product is a conjoined foam material with a dense surface layer, and its unit weight strength and rigidity are 3 to 4 times higher than the same unfoamed material.
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