The use of the stress annealing furnace:
Stress annealing stress annealing also called low-temperature annealing, castings, forgings, mainly eliminate welding residual parts, cold stamping and machining stress in the workpiece to the heating process is slowly to the stress of temperature, holding time, and with the heat treatment furnace cooling. The stress relief heating temperature is generally low. It is suitable for rough parts and machined parts. It can eliminate residual stresses in rough parts and parts, stabilize the size and shape of workpieces, and reduce the deformation and crack tendency of parts during cutting and processing.
A brief introduction to the furnace type of a stress annealing furnace:
The shell of the stress annealing furnace is made of steel and steel plate into a square structure. The structure type is similar to that of the trolley type annealing furnace. According to different annealing temperature, the stress relief annealing furnace with different usage temperature can be designed and manufactured. The furnace body insulation layer structure of precision, strict manufacturing process, the high standard of heating element, and the automatic microcomputer technology of automatic temperature control system, so that the furnace temperature is extremely uniform temperature. The annealing process of the stress annealing furnace is programmed freely, and the heating speed, the heat preservation temperature and the time of heat preservation are automatically controlled, and the temperature control accuracy is up to 1 degrees C.
The skeleton of the stress annealing furnace is made up of all kinds of steel. The outer frame is made of channel steel as the main beam, the enclosed plate adopts cold thin plate, the trolley takes channel steel as the main beam, and the bottom plate and the front end plate adopt the middle plate.
The transmission part of the stress annealing furnace: the drive of the trolley is driven by a motor and a reducer to drive a group of active wheels through a chain. The transmission of the furnace door is a combination of a worm gear reducer and an electric motor.
The sealing of the stress annealing furnace: a labyrinth type structure is adopted for the seal of the trolley and the furnace body, and the automatic sand sealing device is used on the side of the trolley. The door seal adopts the raceway pressure and the spring pressure automatic mechanism to seal the furnace body part with the high quality refractory brick structure, so as to ensure the furnace chamber sealing. High aluminum brick masonry is used in the pressure resistance part of the trolley, and insulation bricks are added in the lower part.
We should stress annealing furnace combustion system: in furnace installed on each side of several burning in the furnace, heat flow reciprocating cycle, ensure the temperature uniformity. Automatic and semi-automatic type can be selected according to the needs.
We should exhaust gas preheating device of annealing furnace in force after the furnace is arranged on the upper end of the exhaust gas preheating device, annealing furnace through the preheater, the fan into the cold air is preheated by the pipeline sent to the burner combustion, and a manual butterfly valve installed in the outlet, the valve can adjust the pressure in the furnace. It is widely used in chemical, petroleum, food, metallurgy, machinery, light industry, electric power, shipbuilding, paper making, mining, medicine, central heating and other industrial sectors such as heating, cooling, condensing, evaporation and so on.