EP 0364709 B1 19920701 - METHOD OF PRODUCING A GAS-ANNEALING ATMOSPHERE IN A HEAT-TREATING DEVICE
Title (en)
METHOD OF PRODUCING A GAS-ANNEALING ATMOSPHERE IN A HEAT-TREATING DEVICE
Publication
Application
Priority
DE 3830559 A 19880908
Abstract (en)
[origin: EP0364709A1] The invention relates to a method of producing a gas-annealing atmosphere in a heat-treating device by thermal decomposition of the starting materials introduced into the treatment chamber of the heat-treating device. An inexpensive, flexible and simply-constructed method is achieved by the simultaneous introduction, performed adjacent to one another, of hydrocarbon gas, alcohol, air and nitrogen into the treatment chamber of the heat-treating device, the starting materials being introduced in a stoichiometric ratio to one another in such a way that the total S of the mass ratios of the mass of the starting materials mn to the mass of the starting material air mL, i.e. <IMAGE> gives a value in the range from 0.2 to 4, preferably 0.5 to 2.0. <IMAGE>
IPC 1-7
IPC 8 full level
C21D 1/76 (2006.01)
CPC (source: EP)
C21D 1/76 (2013.01)
Designated contracting state (EPC)
AT CH DE ES FR IT LI NL
DOCDB simple family (publication)
EP 0364709 A1 19900425; EP 0364709 B1 19920701; AT E77841 T1 19920715; DE 3830559 C1 19890309; DE 58901774 D1 19920806; ES 2033500 T3 19930316; PT 91642 A 19900330; PT 91642 B 19950809
DOCDB simple family (application)
EP 89116228 A 19890902; AT 89116228 T 19890902; DE 3830559 A 19880908; DE 58901774 T 19890902; ES 89116228 T 19890902; PT 9164289 A 19890906