Improvement introduced in tubes and connections for lines of surgu00eancias air and subterru00e1neas from composite polymeric

摘要

Improvement introduced in tubes and connections for lines of surgu00eancias air and subterru00e1neas from polymeric composite.Understood by a main body formed from a tube, formed by internal and external layers, the median, and the inner layer made of glass fiber and epoxy resin matrix, whose ends are provided with internal and external threads for coupling and coupling; The said inner tube, it holds in its external surface, a middle layer of filament winding.With thread of the roving, angle of enleamento with angle between 80 and 85, impregnated with polyester resin is accelerated with cobalt and catalysing the cold with cold polyester catalyst, added load based on silica, with the weight 40 / 60, intercalated between the layers of filament wind Ing, on which there is an outer layer of polyurethane thickness with cold curing.As the middle layer and external, extends close to the beginning of the external thread.