RAPID CARBURIZING WITH NATURAL GAS IN A FLUIDIZED BED. / Pumpyanskaya T.A., Vinokurov V.A., Baskakov A.P. // Metal Science and Heat Treatment. - 1972. - V. 14, l. 5-6. - P. 493-497.
ISSN:
00260673
Type:
нет данных
Abstract:
Carburizing with combustion of natural gas in a fluidized bed with a stationary catalyst and air input coefficient alpha less than 0. 25 is not possible because the GIAP-3 catalyst is deactivated by soot. When alpha equals 0. 26-0. 29 the carburizing capacity of the atmosphere is insufficient to carburize carbon and alloy steels. In order to increase the carbon potential of the atmosphere with alpha equals 0. 26-0. 29, 15-25% gas-carburizer must be added. The carburizing time for a case depth of 1. 0-1. 2 mm is 1. 5 h at 950 C with the addition of raw natural gas.