The preparation before furnace opening and the correct standard process of furnace opening are required when using objectives to explain the combustion of carburizing furnace. These are described below.

First of all, the preparation work before the furnace is started, the original carbon black in the tank needs to be removed first, and the sealing gasket needs to be checked. Also, the circulating fan and the motor need to be checked. The black needs to be filled with water for the lubricating oil of the bearing house and the cooling water jacket. In addition, the position of the hot spot couple, the oil pressure and the titrator, methanol and kerosene reservoirs need to be checked. These devices need to be in normal conditions. These steps are required before the furnace is opened. In order to ensure personal safety, the normal use of the carburizing furnace is also required. Then the carburizing furnace is a heat treatment furnace, which is a new combustion mode. There are two combustion modes, one is burning with fuel, the other is burning with oil. At the same time, the carburizing furnace has two combustion states, one is continuous combustion, the other is intermittent combustion. The combustion mode will be different when it is used.