Shape characteristics of box-type resistance furnace and precautions for use

The front panel and bottom corner of the box-type resistance furnace are made of cast iron, and the outer shell is made of cold plates. The appearance is flat, beautiful and not deformed. The furnace door is fixed on the box body through multi-stage hinges. The furnace door is locked by the weight of the door handle, and the furnace door is fastened on the furnace mouth through leverage. When opening, you only need to lift the handle up, and pull it out to the left side of the box-type resistance furnace after the hook lock is unhooked. The furnace shell of the electric furnace is made of thin steel plate by hemming welding, epoxy powder electrostatic spray paint process, the inner furnace lining is a rectangular integral furnace lining made of silicon refractory; the furnace door brick is made of light refractory material, and the inner furnace lining is between the furnace shell The insulation layer is made of refractory fiber products. The lining is a sealed structure. The furnace core can be drawn out from the small door behind the furnace, which is easier to maintain than other similar furnaces; the lower end of the furnace mouth is equipped with a safety switch interlocking with the furnace door. When the furnace door is opened, the heating circuit is automatically cut off, and the door is automatically powered off to ensure Safe operation.

A. The working environment of box-type resistance furnace requires no flammable materials and corrosive gases.

B. When you first use it or use it again after a long period of inactivity, you should first oven it, the temperature is 200 ~ 600 ℃, and the time is about 4 hours.

C. When using box-type resistance furnace, the furnace temperature shall not exceed the higher furnace temperature, and do not work above the rated temperature for a long time.

D. When using box-type resistance furnace, the furnace door should be closed and opened slightly to prevent damage to the parts.

E. To ensure safe use, a ground wire must be installed and well grounded.

F. When placing samples in the furnace chamber of the box-type resistance furnace, turn off the power first, and handle it gently to ensure safety and avoid damage to the furnace chamber.

g. In order to extend the service life of the box-type resistance furnace and ensure safety, samples should be taken out of the furnace in time after the equipment is used, withdraw from the heating and turn off the power supply.