Electric Resistance Pit Type nitriding furnace for auto crankshafts

1.Application
It is a standard energy-saving periodic operation electric resistance furnace. It is mainly used for gas nitriding heat treatment of various steel mechanical parts, automobile crankshafts, automobile piston rings, motorcycle brake pads, molds, etc.

2.Features
2.1 The pit type nitriding furnace is equipped with a hot air circulation device, which can make the atmosphere and temperature in the furnace tank uniform.
2.2 Because of the atmosphere protection, the work has no deformation, no oxidation, and saves raw materials.
2.3 The electric hydraulic device is used for the lifting of the furnace cover, and the lifting of the furnace cover is stable without shaking.
2.4 Furnace muffle tank, loading baskets, fans, etc. are made of heat-resistant alloy steel, with long service life;
2.5 The electric furnace is equipped with a rapid cooling device, which can be cooled quickly as needed;
2.6 The pit type furnace for heat treatment is equipped with interlock protection device, which can prevent faults and accidents caused by misoperation;
2.7 No environmental pollution, good environmental benefits.

3.Technical Parameters

Note: the company can provide various non-standard design and manufacturing according to user requirements. Welcome to send us an inquiry.

4. Structure Features
RN series pit type gas nitriding furnace is an energy-saving gas nitriding furnace, which adopts energy-saving furnace lining, double water-cooled furnace tank cover, vacuum rubber seal and upper and lower two zone temperature or multi zone temperature control. The heat preservation, temperature uniformity, sealing and nitriding speed of the electric furnace are greatly improved, and the furnace type is consistent with the standard. The shell of this series of well type gas nitriding furnace is welded by steel plate and section steel. The gas nitriding furnace lining is made of light, high-strength 0.6g/ cm3 energy-saving refractory bricks. The outer layer of the furnace lining is sandwiched with aluminum silicate fiber, and then filled with expanded vermiculite powder for insulation. The heating element is spirally wound by high-temperature resistance wire and installed on the brick shelf of the furnace lining. A stainless steel furnace can is installed in the furnace. A double headed stainless steel dripper is installed on the furnace cover to drip methanol, so that the temperature and atmosphere in the furnace are uniform. The furnace cover is equipped with a sampling pipe, an exhaust pipe, and an input pipe on the upper side wall of the furnace tank for ammonia input. The electric resistance furnace tank and the furnace cover are sealed with water-cooled vacuum rubber, and are equipped with compression bolts. The waste gas in the furnace is discharged out of the furnace through the exhaust pipe.