FR1072773A - Procédé de fabrication de tubes soudés, en particulier de tubes de petit diamètre, et installation pour la mise en oeuvre de ce procédé
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Procédé de fabrication de tubes soudés, en particulier de tubes de petit diamètre, et installation pour la mise en oeuvre de ce procédé
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RHEINISCHE ROHRENWERKE AG
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RHEINISCHE ROHRENWERKE AG
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B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
B21C37/08—Making tubes with welded or soldered seams
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FR1072773D1952-02-051953-02-04Procédé de fabrication de tubes soudés, en particulier de tubes de petit diamètre, et installation pour la mise en oeuvre de ce procédé
ExpiredFR1072773A
(fr)
Procédé de rétrécissement du diamètre extérieur aux extrémités des ébauchespour la fabrication des tubes sans soudure et dispositif pour la mise en oeuvre dudit procédé