METHOD FOR REGULATION OF ECOLOGICALLY CLEAN PROCESS OF CARBURIZING Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: method for regulation of ecologically clean process of carburizing includes continuous recirculation of endogas between endogenerator and furnace to whose working space hydrocarbon is added. Added to return flow of recirculation endogas is carbon dioxide whose amount is regulated by the signal arriving from computer of carbon oxide-hydrogen ratio regulator. Depending on type of initial hydrocarbon converted into endogas and added to furnace, carbon oxide-hydrogen ratio is regulated into endogas and added to furnace, carbon oxide-hydrogen ratio is regulated within the range given in invention description, ratio of volume of addition of carbon dioxide and value of addition of carbon being 1:(0.3-1.2). EFFECT: higher efficiency. 1 dwg