СПОСОБ ИЗГОТОВЛЕНИЯ ТРУБЫ

摘要

FIELD: manufacture of plastic pipes. ^ SUBSTANCE: proposed method includes placing the thermoplastic envelope on mandrel followed by winding fibrous material containing binder on this envelope and applying the outer polymer layer; then, polymerization is accomplished; twisted roving is used for wrapping the fibrous material at cross position of cords with through passages in between them; these passages are filled with thermoplastic melt for forming outer layer from this melt or by winding thermoplastic tape. ^ EFFECT: enhanced reliability. ^ 1 dwg