Ceramic fiber muffle furnace maintenance and precautions:
When the electric furnace is used for the first time or used again after a long period of shutdown, it must be baked. The oven time should be 200 ℃ for four hours at room temperature. 200 ℃ to 600 ℃ for four hours. During use, the maximum temperature of the furnace must not exceed the rated temperature, so as not to burn the electric heating element. It is forbidden to pour various liquids and easily soluble metals into the furnace. The electric furnace is best to work below 50 ℃ below the maximum temperature. At this time, the furnace wire has a longer life.
The electric furnace and the controller must work in a place where the relative temperature does not exceed 85%, and there is no conductive dust, explosive gas or corrosive gas. When metal materials such as grease are required to be heated, a large amount of volatile gas will affect and corrode the surface of the electric heating element, which will destroy and shorten the life. Therefore, when heating, it should be timely prevented and properly sealed containers or appropriate openings to be eliminated.
The controller should be limited to use within the ambient temperature range of 0-40 ° C.
According to the technical requirements, regularly check whether the connections of the electric furnace and the controller are good, whether the indicator pointer is stuck or not, and use the potentiometer to check the fatigue of the instrument due to magnetic steel, demagnetization, wire expansion and spring , The increase in errors caused by balance destruction, etc.
Do not pull out the thermocouple suddenly at high temperature to prevent the jacket from bursting.
Always keep the furnace clean, and remove oxides and other things in the furnace in time.
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