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Procedure for the manufacture of expanded polyurethane covers or other suitable material for the thermal insulation of pipes, and installation for their realization. (Machine-translation by Google Translate, not legally binding)
Procedure for the manufacture of expanded polyurethane covers or other suitable material for the thermal insulation of pipes, and installation for their realization. (Machine-translation by Google Translate, not legally binding)
Process for manufacturing expanded polyurethane covers or other material suitable for thermal insulation of pipes, and installation for its realization, characterized in that it consists, said process, mainly in the formation, by coating a series of layers of paper, cardboard or other suitable materials glued together, from a helical tube wound in an initial terminal section on a cylindrical element with a horizontal axis around which said tube is formed and continuously rotated and advanced by a motor belt wound around the same tube and appropriately driven ; in the spraying on such a tube, by means of a fixed nozzle, of rigid or flexible expanded polyurethane foam or of another suitable material, for coating said tube with a suitable layer to constitute the cover; in the cutting, with any length, of tube-covered pieces by means of a sliding device parallel and transversely to the axis of the tube-cover, controlled by a photoelectric cell; and in the diametral cut of said tube-covered pieces to obtain two half-covers of each of them. (Machine-translation by Google Translate, not legally binding)
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