The resistance furnace includes box type resistance furnace, tube type resistance furnace, atmosphere resistance furnace, etc. These are high temperature heating equipment. In the process of operation, the correct operating procedures should be strictly followed to avoid damage due to improper operation. Now we, Zhengzhou Kejia Electric Furnace Co., Ltd., share the safe operation and maintenance knowledge of the resistance furnace
1. Before using the resistance furnace, make sure that the power connector is in good contact and the insulation of the power line meets the requirements
2. The limit switch installed near the resistance furnace door or furnace cover shall ensure sensitive response. Once the furnace door or furnace cover is opened, the main circuit will be powered off immediately.
3. The gas flowmeter and pressure gauge equipped to control the atmosphere resistance furnace shall indicate accurately and sensitively.
4. The resistance furnace with flammable and explosive atmosphere shall be equipped with necessary interlock devices for alarm when the furnace temperature is lower than 760 ℃ to avoid explosion.
5. The explosion-proof safety device for controlling high-temperature atmosphere furnace shall be flexible and reliable.
6. Water cooled resistance furnace shall be equipped with water temperature, water pressure and flow relays. In case of abnormal conditions, the main circuit power supply shall be cut off and an alarm signal shall be sent.
7. The grounding bolts of the furnace body shall be firm and reliable.
8. The exposed electric heating body outside the furnace shell shall be provided with a safe and reliable protective cover.
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