How much does the temperature of the high-temperature electric furnace drop to open the furnace door?

The heating rate of the high temperature tubular resistance furnace is limited. It is recommended to be lower than the rated value. If it is too large, it will cause the program temperature to rise rapidly, thereby increasing the difference with the actual temperature. At this time, the electric furnace will automatically increase the heating current , Will cause the current to rush too high. It will cause damage to the program setting module and cause the heating program of the electric furnace to fail. For cooling, if the heating resistance wire is not exposed to the outside, it is no problem to open the furnace below 200 degrees; if the resistance wire is exposed in the heating chamber, it is recommended to wait until it is below 100 degrees or even room temperature, or it will not cause damage to the furnace, heating resistance The silk will cause damage due to the excessive temperature difference.