EP 0049530 B1 19850605 - METHOD AND DEVICE FOR CARBONIZING METALLIC PIECES
Title (en)
METHOD AND DEVICE FOR CARBONIZING METALLIC PIECES
Publication
Application
Priority
DE 3038078 A 19801008
Abstract (en)
[origin: ES8206658A1] A method of carburizing a metal workpiece and a carburizing apparatus in which the workpiece, generally of steel, is introduced into an annealing oven and subjected to a high temperature in the presence of a carbon-containing gas mixture as a result of which the workpiece is hardened. According to the invention, one or more of the carbon-containing gas components of the mixture effective upon the surface of the work-piece, can be periodically and impulsively injected into the gas mixture for sudden increases in carbon potential followed by longer diffusion phase.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0049530 A1 19820414; EP 0049530 B1 19850605; AT 369792 B 19830125; AT A539980 A 19820615; AU 543782 B2 19850502; AU 6915481 A 19820422; BR 8102150 A 19820817; DE 3038078 A1 19820506; DE 3170866 D1 19850711; DK 433181 A 19820409; ES 505891 A0 19820901; ES 8206658 A1 19820901; GR 75086 B 19840713; GR 75375 B 19840713; NO 813283 L 19820413; US 4472209 A 19840918; ZA 812500 B 19820428
DOCDB simple family (application)
EP 81108034 A 19811007; AT 539980 A 19801103; AU 6915481 A 19810407; BR 8102150 A 19810409; DE 3038078 A 19801008; DE 3170866 T 19811007; DK 433181 A 19810930; ES 505891 A 19810930; GR 810166198 A 19810914; GR 810166222 A 19811007; NO 813283 A 19810928; US 30947781 A 19811007; ZA 812500 A 19810415