FIELD: technological processes.
SUBSTANCE: internal layer made of glass-fibre plastic is wound onto holder, internal glass-fibre plastic layer is pasted, ribs and external glass-fibre layer are wound, and then thermal treatment of produced pipe is carried out. Ribs are arranged as bundles of threads, installed in annular grooves, which are produced in foam plastic layer, and fixed with internal and external layers. Thermal treatment of pipe is carried out under external pressure.
EFFECT: production of pipe made of flaky composite material of multiangular section of higher manufacturability and higher reliability of operation.
2 cl, 4 dwg
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Authors
Dates
2008-09-10—Published
2006-08-24—Filed