Box type multi-purpose furnace working mode

Box type multi-purpose furnace working mode

Box type multi-purpose furnace production line is mainly used for workpiece gas carburizing direct quenching, gas carburizing with intermediate cooling, gas carburizing protection gas cooling, recarburizing, carbonitriding and quenching, nitrogen grinding (soft nitriding), isothermal quenching, bright normalizing, bright annealing, brazing, sintering.

Multipurpose furnace production line

Box type multi-purpose furnace working mode

The workpiece is prepared on the platform, fed into the degreasing furnace to preheat through the loading and unloading trolley, and then to the multi-purpose sealed box furnace to complete the process of carburizing and quenching. Cleaning machine cleaning, return to the furnace to complete the tempering process.

The composition of box type multi-purpose furnace

The box type multi-purpose furnace production line consists of: multi-purpose sealed box type furnace, tempering furnace, degreasing furnace, cleaning machine, loading and unloading trolley, preparation table, etc., which can be arranged according to user requirements in different combinations to form a flexible and adaptable flexible heat treatment production line.

If the metallography level of 2-3 consecutive furnace products is a little higher than the technical requirements, you open the front door and the middle door, air into the furnace to burn, 5-10 minutes to close the door, see if the furnace temperature is higher than your set temperature, the higher the carbon deposit is more severe, then burn it, until the temperature is less than 10 degrees Celsius from the set value, close the door to protect carbon and then work it. When replacing the oxygen probe, the carbon can be determined once, the rest of the time is not necessary, directly look at the product metallography, once the metallography is a little different, it is necessary to pay attention to tracking observation, timely adjustment, as long as you grasp the product metallographic organization, you have the lifeblood of product quality.

The furnace body is divided into drying, preheating, roasting and cooling belts from top to bottom. The vertical rotating shaft in the center of the furnace drives the rake arm and rake teeth of each layer of the furnace bed to rotate. The material is added through the feeding holes around the top of the furnace, the discharge ports of each odd-numbered furnace bed are located in the center, and several discharge ports of the even-numbered furnace bed are evenly arranged around the furnace. Due to the different orientation of odd and even hearth rake teeth, under the action of turning and pushing the rake teeth, the material falls from the top to the bottom layer in an "S" shape, and meets the hot gas from the combustion chamber countercurrent for heat exchange.

Commonly used multi-purpose furnace heat treatment are resistance furnace, gas furnace and oil furnace. Heat treatment manufacturers from the perspective of labor safety and health. The resistance furnace is easy to control and the sanitary conditions are relatively good.