Features：

- The pit gas-fired carburizing furnace is a high-precision and ultra-energy-saving carburizing furnace. It is mainly used for gas carburizing of steel parts. It adopts ultra-energy-saving furnace lining and international advanced vacuum sealing fan to improve the furnace pressure without any leakage and uniform temperature. The heating rate is fast, the heat preservation is good, the carbon potential atmosphere is uniform, the carburizing speed of the workpiece is accelerated, and the infiltration layer is uniform. This series of pit gas-fired carburizing furnace greatly improves the production efficiency and carburizing quality.

- The pit gas-fired carburizing furnace is composed of a furnace shell, a furnace lining, a furnace lid lifting mechanism, a vacuum sealing fan, a muffle tank and a heating element. The furnace shell is round and is welded from steel plates and sections. The furnace lining is an energy-saving furnace lining structure made of high-strength ultra-light micro-bead vacuum ball energy-saving refractory bricks, aluminum silicate super long fibers, and expanded thermal insulation pellets. The furnace lid lifting mechanism is composed of a motor gear box. When the furnace cover needs to be opened, it is only necessary to press the group on the control box, and the furnace cover is raised and lowered at a constant speed. For safety reasons, the carburizing electric furnace lifting mechanism is installed. Two stroke switches, when the furnace cover rises, the lower limit switch automatically cuts off the main circuit power of the carburizing furnace control cabinet, so that the heating element is powered off and stops working. The upper limit switch limits the height of the lifting shaft to prevent lifting. The pumping is too high and the lifting screw is pulled out of the gearbox.

- The vacuum sealed fan is mounted on the furnace cover, which can stir the atmosphere in the muffle tank to make the composition uniform, and at the same time make the furnace temperature uniform. There are also three pipes in the furnace cover, which are directly connected to the carburizing furnace. One pipe is equipped with three stainless steel drip chambers. Three drip injectors are used to inject the drunken, kerosene or other organic liquid into the furnace. The liquid can be adjusted. The three pipes on the furnace cover have water-cooled sleeves for rapid cooling of the gas entering the three pipes. The role of the muffle tank is to maintain the furnace pressure and ensure the normal carburization. It is made of heat-resistant steel and carburized. The furnace is equipped with a cooling bucket for storing the treated parts and a sand sealing groove at the lid.