EP 0156378 B1 19890802 - METHOD AND APPARATUS FOR CARBURIZING STEEL WITH A GAS
Title (en)
METHOD AND APPARATUS FOR CARBURIZING STEEL WITH A GAS
Publication
Application
Priority
DE 3411605 A 19840329
Abstract (en)
[origin: US4591132A] In the gas carburization of steel, a steel part is exposed in a carbon-enriched atmosphere of a furnace to a diffusion process to form a boundary layer with an increased carbon content, determined as a function of the distance from the surface. The values of importance for the diffusion process are determined intermittently and used as control parameters to affect the diffusion process. The flow of carbon diffusing directly through the surface of the steel part serves as the measured value. The supply of the carburizing gas is controlled as a function of this value.
IPC 1-7
IPC 8 full level
C21D 1/76 (2006.01); C23C 8/06 (2006.01); C23C 8/22 (2006.01)
CPC (source: EP US)
Citation (examination)
Designated contracting state (EPC)
AT CH FR GB IT LI SE
DOCDB simple family (publication)
EP 0156378 A2 19851002; EP 0156378 A3 19860326; EP 0156378 B1 19890802; AT E45190 T1 19890815; DE 3411605 A1 19851010; DE 3411605 C2 19860717; JP S60228665 A 19851113; US 4591132 A 19860527
DOCDB simple family (application)
EP 85103680 A 19850327; AT 85103680 T 19850327; DE 3411605 A 19840329; JP 6219385 A 19850328; US 71480285 A 19850322