METHOD OF FABRICATING PIPELINE SEPARATOR

摘要

FIELD: process engineering. ^ SUBSTANCE: invention relates to the method of fabricating device intended for cleaning inner surfaces of oil-and-gas main pipelines. Pipeline separator envelopment preform including core from foamed polyurethane and envelopment proper are made from textile and used as casting mould. Said mould is suspended on the side of mouth. Foamed polyurethane-forming components injected into the mould, it is kept suspended unless foamed polyurethane is formed. Envelopment is sewn from separate textile pieces cut to patterns. Felt or nonwoven synthetic material is used as said textile. ^ EFFECT: described envelopment allows producing high-strength and high-density foamed polyurethane without additional heating. ^ 3 cl, 2 dwg