FR831465A - Procédé de forgeage de coudes à 180 degrés, matrice propre à la mise en oeuvre du procédé et produits obtenus par ce procédé
- Google Patents
Procédé de forgeage de coudes à 180 degrés, matrice propre à la mise en oeuvre du procédé et produits obtenus par ce procédé
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Compagnie des Surchauffeurs SA
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Compagnie des Surchauffeurs SA
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Application filed by Compagnie des Surchauffeurs SAfiledCriticalCompagnie des Surchauffeurs SA
Application grantedgrantedCritical
Publication of FR831465ApublicationCriticalpatent/FR831465A/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
B21C37/15—Making tubes of special shape; Making tube fittings
B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
B21C37/283—Making U-pieces
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Engineering & Computer Science
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Mechanical Engineering
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FR831465D1936-12-301937-12-30Procédé de forgeage de coudes à 180 degrés, matrice propre à la mise en oeuvre du procédé et produits obtenus par ce procédé
ExpiredFR831465A
(fr)
Procédé d'application électrolytique de couches d'oxydes sur de l'aluminium ou des alliages d'aluminium, électrolytes propres à la mise en oeuvre du procédé et produits obtenus par ce procédé