Compared with the traditional fuel furnace, the box-type resistance furnace heats up quickly, the te

Since modern box-type electric furnaces heat up faster than traditional fuel furnaces, have higher temperatures and are easier to control, it is easy to form a mechanized and automated production mode in the production process. The development of industrial technology in recent years has caused enterprises in various fields to abandon traditional production equipment. Fuel furnaces in traditional industries have been gradually replaced by box-type resistance furnaces. With the further successful development of electric furnace technology, the market has also begun Various box-type resistance furnaces have appeared. Nowadays, box-type electric furnace equipment has not only been used in industrial production fields such as chemical industry and metallurgy, but also expanded to many fields such as households and medicine. It is mainly used for high-temperature sintering, metal annealing, and quality The use of detection has enabled the rapid development of the electric furnace industry.

Main application of box type resistance furnace


The box-type resistance furnace uses electricity as a heat source, and converts electrical energy into heat energy through electric heating elements, and heats the metal in the furnace. Compared with the flame furnace, the box-type electric furnace has a high thermal efficiency, up to 50-80%, the thermal system is easy to control, the working conditions are good, and the furnace body has a long life. It is suitable for heating the workpiece with stricter requirements, but the power consumption is high.
The box-type resistance furnace uses molybdenum-doped resistance wire as the heating element, adopts a double-layer shell structure and an intelligent temperature control system. The furnace hearth of the resistance furnace adopts alumina polycrystalline fiber material. Temperature rise and fall, use soft start constant current control to prolong the life of heating elements, have the advantages of high temperature control accuracy, balanced temperature field, simple operation, fast rise and fall temperature speed, and low energy consumption.

Box type resistance furnace


When changing the connection method, there is no need to assemble the silicon carbide rod, just change the connection method, and after changing the connection method, pay attention to the slow adjustment of the heating power adjustment button when using the box-type resistance furnace, and the heating current value must not exceed the additional value. After the silicon carbide rod is found to be damaged, it should be replaced with a new silicon carbide rod with the opposite specification and similar resistance value. When changing, first remove the maintenance cover and silicon carbide rod chuck at both ends, and then take out the damaged silicon carbide rod. Since the silicon carbide rod is fragile, be careful when installing. The exposed parts of both ends of the furnace shell should be equal. Tighten it to make good contact with the silicon carbide rod.
If the chuck is severely oxidized, it should be replaced with a new one. The gaps at the device holes at both ends of the silicon carbide rods are blocked with asbestos rope. The furnace temperature shall not exceed the maximum task temperature of 1350℃. The silicon-carbon V-type mixer rod is allowed to work continuously for 4 hours at the lowest temperature.
After long-term use of the box-type resistance furnace, if you find that the heating power adjustment knob is adjusted clockwise to the maximum position, the heating current still cannot go up, and the required heating power cannot be reached. Generally, the silicon carbide rod is aging.