Purposes: 
 The RQ3 series of pit gas carburizing furnace is new standard for energy-saving cycle operation carburizing furnace, mainly for gas carburizing of steel parts, due to the lining of the super energy-saving and international advanced vacuum sealed fan, the furnace pressure to improve, no leak, furnace temperature uniformity, fast heating, insulation, and even carbon potential of atmosphere, speed of workpiece carburizing, uniform layer, this series of pit gas carburizing furnace greatly improve production efficiency and carburizing quality. 

 Structure description: 
 The RQ3 series of pit gas carburizing furnace by the furnace shell, lining, lid lifting bodies, vacuum sealed air blower, muffle tank and heating element composition. The furnace shell is round, which consists of welded steel plate and steel. The lining is 0.6g/cm3 high-intensity ultra-lightweight beads vacuum ball energy-saving refractory bricks, aluminum long fibers, expansion of the insulation pellets and other energy-saving masonry lining structure. The lid lifting bodies by the motor gear box, simply press on the control box by the need to open the lid, the lid to speed up decline for safety reasons, tops in the carburizing furnace lifting mechanism with two trip switches, when the rise of the lid, below the limit switch automatically cut off the carburizing electric furnace control cabinet main circuit power supply to the heating element power to stop working, the upper limit switch to limit the height of the lift shaft rising to prevent lifting smoke rises too high, lifting screw extrusion gear box. 
 Vacuum sealed fan mounted on the lid, it can stir the homogeneous atmosphere in the muffle tank at the same time so that the furnace temperature becomes uniform. Direct carburization electric furnace muffle the tank lid, equipped with three tubes, a tube installed three stainless steel drip to the furnace consists of three drip infusion of a drunk, kerosene or other organic liquids, a variety of The liquid can be adjusted. Three tubes on the lid have water-cooled sets, in order to enter the gas in the three tubes in rapid cooling, the muffle tank role is to maintain the furnace pressure to ensure the normal carburizing, it is made of heat resistant steel, carburizing electric furnace with a cooling bucket, used to store the treated parts, poke the lid has a sand seal trough.