EP 0043335 B1 19840125 - APPARATUS FOR THE CONTINUOUS HOT-FORMING OF METALLIC PIPE BENDS
Title (en)
APPARATUS FOR THE CONTINUOUS HOT-FORMING OF METALLIC PIPE BENDS
Publication
Application
Priority
FR 8014362 A 19800627
Abstract (en)
[origin: EP0043335A1] 1. Apparatus for the continuous hot production of curved tubular metal elements, in particular of steel, comprising a mandrel having a straight cylindrical shank (1) which is extended at its end by a curved shaping section (2), a measn (3) for heating the blanks, at the vicinity of the end of the mandrel shank and means for fitting and pushing blanks on the mandrel, characterized in that it comprises, on the straight mandrel shank, upstream of the heating means, a ring (4) which surrounds the mandrel shank and which comprises at least one cylindrical bearing surface (5) having the same axis as the mandrel shank, the diameter of said surface (5), which is larger than the diameter of the mandrel shank, being at least equal to the nominal inside diameter of the tubular blanks which are fitted onto and pushed on the mandrel.
IPC 1-7
IPC 8 full level
B21D 9/12 (2006.01)
CPC (source: EP)
B21D 9/12 (2013.01)
Designated contracting state (EPC)
AT DE FR GB IT NL
DOCDB simple family (publication)
EP 0043335 A1 19820106; EP 0043335 B1 19840125; AT E5952 T1 19840215; DE 3162026 D1 19840301; FR 2485409 A1 19811231; FR 2485409 B1 19820820
DOCDB simple family (application)
EP 81420095 A 19810626; AT 81420095 T 19810626; DE 3162026 T 19810626; FR 8014362 A 19800627