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Matters needing attention in reusing muffle furnace after long-term shutdown

1. When the muffle stove is used for the first time or is used again after long-term shutdown, it must be baked. The oven should be baked at room temperature of 200 C for 4 hours. Two hundred to six hundred degrees for four hours. When in use, the highest furnace temperature shall not exceed the rated temperature in order to avoid burning down the electric heating elements. It is forbidden to pour various liquids and soluble metals into the furnace. The muffle furnace works as low as possible below the maximum temperature of 50 C. The muffle furnace has a long service life after long-term shutdown.
muffle stove
2. Muffle furnaces and controllers must work in places where the relative humidity does not exceed 85% and there is no conductive dust, explosive gas or corrosive gas. When metal materials such as grease need to be heated, a large number of volatile gases will affect and corrode the surface of electrothermal components, which will destroy and shorten their life. Therefore, when heating, it should be timely prevented and properly sealed containers or appropriate openings should be excluded..
 
3. Controllers should be limited to use in the ambient temperature range of 0-40 degrees Celsius.
 
4. According to technical requirements, regularly check whether the connection of electric furnace and controller is good or not, whether the indicator pointer is stuck or not when moving, and the errors caused by demagnetization, wire-raising, fatigue of shrapnel and balance damage should be paid attention to during secondary use.
 
5. The thermocouple should not be pulled out suddenly at high temperature in order to prevent the jacket from bursting.
 
6. Keep the furnace clean regularly and remove oxides in time.
These are the precautions for the muffle furnace. It will prolong the service life of the machine better if it is used according to the requirements.

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