UHMWPE forming: a porous membrane. The ultrahigh molecular weight polyethylene (UHMW-PE) was dissolved in a volatile solvent, continuously extruded, then dried over a thermoreversible gelation / crystallization process, ultra high molecular weight polyethylene plants, making it a wet gel film , ultra high molecular weight polyethylene, the film was dried and the solvent was distilled off. UHMWPE forming: heat treatment. With heat-treated ultra high molecular weight polyethylene (UHMW-PE) powder pressing the articles and not heat-treated UHMPWE products compared to the former have better physical properties and transparency, smoothness and low temperature mechanical properties of the product surface greatly improved.