EP 1704948 B1 20080416 - Wear resistant pipe of tubular shape and casting process for manufacture thereof
Title (en)
Wear resistant pipe of tubular shape and casting process for manufacture thereof
Title (de)
Schleiffestes Rohr aus Metall und Verfahren zu seiner Herstellung
Title (fr)
Pièce métallique résistante à l'usure de forme tubulaire, et procédé de fabrication par coulée d'une telle pièce.
Publication
Application
Priority
FR 0502917 A 20050324
Abstract (en)
[origin: EP1704948A1] The tubular component, e.g. part of a pipe, has an inner wall (1) at least 20 mm thick of an abrasion resistant metal, and an outer wall (2) of a second metal that is resistant to mechanical stresses and shocks. The inner and outer walls, made from chrome and low carbon steels respectively, are in intimate contact but without bonding or metallurgical interaction, produced by casting the outer wall round the prefabricated inner one, which is subjected to thermal treatment to reduce its hardness.
IPC 8 full level
B22D 19/16 (2006.01)
CPC (source: EP)
B22D 19/08 (2013.01); B22D 19/16 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1704948 A1 20060927; EP 1704948 B1 20080416; AT E392282 T1 20080515; DE 602006000921 D1 20080529; FR 2883496 A1 20060929; FR 2883496 B1 20081024
DOCDB simple family (application)
EP 06111618 A 20060323; AT 06111618 T 20060323; DE 602006000921 T 20060323; FR 0502917 A 20050324