Gas-assisted injection molding is a manufacturing technology in the plastic molding is applied in detail epcac large thickness and porosity allowed inside (the type of plastic handles, plastic arms, tubes ... ). By pumping air in and keep the pressure, molten plastic mixture filled with possibilities nangdien angular positions of the mold, keep the air pressure in the cooling process to make spending
more defects avoiding contraction and curved concave warping, surface beauty products.
Ernst Rohm GmbH of Darmstadt Friederich, Germany, is? the first to invent a detailed molding process empty? need the above processes. The original patent filed in German? (German Patent 2,501,314, issued in 1975)?
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