EP 0151838 B1 19890906 - HEAT TREATING HARDENABLE CARBON STEEL PIPE
Title (en)
HEAT TREATING HARDENABLE CARBON STEEL PIPE
Publication
Application
Priority
- EP 84300740 A 19840207
- AU 2319584 A 19840110
- ZA 841054 A 19840214
Abstract (en)
[origin: EP0151838A1] An annular zone of a carbon steel pipe (10) is heated to an austenizing temperature by an induction heater (14) as the pipe (10) is moved through the heater (14) followed by quenching of the heated zone with a spray (22) of an even conical sheet of quenching fluid traveling at a preselected angle to the surface of the pipe (10) such that after striking the pipe surface the fluid remains in contact therewith resulting in rapid controlled quenching of a well defined area of the pipe (10).
IPC 1-7
IPC 8 full level
C21D 1/10 (2006.01); C21D 1/18 (2006.01); C21D 1/667 (2006.01); C21D 9/08 (2006.01)
IPC 8 main group level
CPC (source: EP)
C21D 9/085 (2013.01)
Designated contracting state (EPC)
AT BE DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0151838 A1 19850821; EP 0151838 B1 19890906; AT E46192 T1 19890915; AU 2319584 A 19850718; AU 575307 B2 19880728; DE 3479673 D1 19891012; GB 8427385 D0 19841205; ZA 841054 B 19840810
DOCDB simple family (application)
EP 84300740 A 19840207; AT 84300740 T 19840207; AU 2319584 A 19840110; DE 3479673 T 19840207; GB 8427385 A 19841030; ZA 841054 A 19840214