The furnace door can only be opened when the temperature of the vacuum heat treatment equipment drops to 200°C or lower

The furnace door can only be opened when the temperature of the vacuum heat treatment equipment drops to 200°C or lower

During use, the furnace temperature of the box-type resistance furnace should not exceed the high temperature limit, do not burn electronic parts, and prohibit injecting various liquids and molten metals into the furnace.

After several cycles of heating, the refractory of an electric furnace may crack. These cracks are caused by thermal expansion and do not affect the quality of the electric furnace.

Use caution when using box-type resistance furnaces to prevent failure of self-control and cause accidents, and do not use resistance furnaces when they are unattended at night.

After using the box furnace, turn off the power and let the temperature drop naturally. Do not open the oven door immediately, if there is an urgent need, open a small gap first to lower the temperature so that the oven cavity does not suddenly become cold, crack and crack. Only open the oven door when the drop temperature is 200°C or lower.

There is no need to assemble silicon carbide rods when the vacuum heat treatment equipment changes the connection method

For the silicon carbide rod type furnace, if the silicon carbide rod is found to be damaged, it should be replaced with a new silicon carbide rod with the opposite specification and similar resistance value. When replacing, first remove the two ends of the maintenance cover and the silicon carbide rod chuck, and then take out the damaged silicon carbide rod. Since the silicon carbide rod is easy to break, care must be taken during installation. The exposed parts of the furnace shell at both ends should be equal, and the chuck must be Tighten so that it is in good contact with the silicon carbide rod.

If the chuck is severely oxidized, it should be replaced with a new one. The gaps at the device holes at both ends of the silicon carbon rod are blocked with asbestos rope. The furnace temperature shall not exceed the maximum working temperature of 1350°C. The silicon carbon V-blender rod is allowed to work continuously for 4 hours at the lowest temperature. After the electric furnace has been used for a long time, if the heating power adjustment button is adjusted clockwise to the maximum position, the heating current still cannot go up. The extra value of the small labeling machine is far away, and the required heating power cannot be achieved, which explains that the silicon carbide rod has aged.

The muffle furnace does not need to be equipped with silicon carbide rods when changing the connection method, only the connection method needs to be changed, and after changing the connection method, pay attention to adjusting the heating power adjustment button slowly when using the furnace, and the heating current value shall not exceed the additional value.

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