Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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
B21C45/00—Separating mandrels from work or vice versa
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Reduction Rolling/Reduction Stand/Operation Of Reduction Machine
(AREA)
Verfahren zum Betreiben einer Vorholvorrichtung zur Herstellung von nahtlosen Rohren auf einem Pilgerschrittwalzwerk und Vorrichtung zur Durchfuehrung des Verfahrens
Abänderung des durch die Patente Nr. 34617 und 45890 geschützten Verfahrens zur Herstellung von nahtlosen Hohlkörpern (Röhren) direkt aus einem massiven Block