METHOD OF MANUFACTURE OF PIPE Russian patent published in 2005 - IPC

Abstract RU 2262026 C1

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

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RU 2 262 026 C1

Authors

Shaklein O.V.

Dates

2005-10-10—Published

2004-01-13—Filed