1. Overview of Atmosphere Furnace
The characteristic of the atmosphere furnace is that at a certain temperature, a certain composition of artificial preparation atmosphere is passed into the furnace to achieve certain heat treatment purposes, such as gas carburizing, carbonitriding and bright quenching, annealing, normalizing, etc.
2.The atmosphere furnace has the following characteristics
In order to control the atmosphere in the furnace and maintain the pressure in the furnace, the working space in the furnace must always be isolated from the outside air, and try to avoid air leakage and inhalation of air. Therefore, the furnace shell, masonry, furnace door and all external connecting parts such as fans are required. Thermocouple, radiant tube, push-pull feeder, etc. adopt sealing device; heating method
In order to ensure the stability of the atmosphere, the atmosphere furnace can be divided into two types: muffle furnace and muffle-free furnace. The flame of the muffle furnace is outside the muffle, and the workpiece is indirectly heated in the muffle; the muffle-free furnace adopts various flames. The radiant tube or electric radiant tube separates the flame or electric heating element from the furnace gas, so as not to destroy the stability of the atmosphere in the furnace.
The reducing gas and air are mixed to a certain mixing ratio, which is easy to cause an explosion at a certain temperature. Therefore, explosion-proof devices are installed in the front and back chambers of the furnace, the quenching chamber and the slow cooling chamber, and the furnace gas supply and exhaust control system is also Have explosion-proof measures.
The muffle-free atmosphere furnace uses reducing gas. In order not to affect the service life of the masonry and not to damage the normal furnace atmosphere, the furnace masonry is required to use anti-carburizing refractory materials.
degree of automation
Various atmosphere furnaces have high tightness requirements and complex loading and discharging operations. One furnace is required to be used for multiple purposes. In mass production, it is often composed of large-scale combined heat treatment special or more than dual-purpose units, so higher mechanization is required. degree of automation.
Zhengzhou Kejia Furnace Co., Ltd. is a heat treatment equipment enterprise integrating R&D, production and sales. We produce muffle furnaces, tube furnaces, high temperature atmosphere furnaces, vacuum box furnaces, vacuum atmosphere furnaces, cvdpecvd systems and other products. Long-term cooperation with domestic and foreign universities and enterprises. Welcome new and old customers to consult! Vacuum atmosphere furnace | box atmosphere furnace? Contact us for more product information!