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How to maintain the high temperature muffle furnace daily

How to maintain the high temperature muffle furnace daily

  1. When the high-temperature muffle furnace is used for a long time or is used again after a long period of inactivity, it must be baked. The oven time should be four hours at room temperature 200℃. 200℃***600℃ for four hours.

  When using, the furnace must not exceed the rated temperature to avoid burning the heating element. It is forbidden to pour various liquids and easily soluble metals into the furnace. The high-temperature muffle furnace works at a temperature below 50 ℃, and the furnace wire has a longer life.

  2. The high-temperature muffle furnace and controller must work in a place where the relative humidity does not exceed 85%, and there is no conductive dust, explosive gas or corrosive gas.

   When metal materials with grease or the like need to be heated, a large amount of volatile gas will affect and corrode the surface of the heating element, causing it to be destroyed and shorten the life. Therefore, the heating should be prevented in time and the container should be sealed or properly opened to eliminate it.

   3. The high-temperature muffle furnace controller should be limited to the ambient temperature range of 0-40 ℃.

  4. According to technical requirements, regularly check whether the wiring of the electric furnace and the controller is in good condition:

   The temperature measuring thermocouples connected to the controller may interfere with the controller, causing the controller display value to skip characters, and the measurement error increases. The higher the furnace temperature, the more obvious this phenomenon. Therefore, the metal protection tube (shell) of the thermocouple must be well grounded, and if necessary, use a thermocouple with three-wire output. In short, all effective measures should be taken to reduce interference.

   5. Do not pull out the thermocouple suddenly at high temperature to prevent the jacket from bursting.

  6. ​​Keep the furnace chamber clean and remove oxides in the furnace in time.

  7. During use, when using alkaline substances to melt samples or burn deposits in a high-temperature muffle furnace, the operating conditions should be strictly controlled, and a refractory plate should be laid on the bottom of the furnace to prevent corrosion of the furnace.

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