Methods to increase the service life of crucible furnace

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Methods to increase the service life of crucible furnace

There are many ways to improve the service life of the crucible furnace, including but not limited to the use of suitable materials, correct operating methods and regular maintenance. The following are some specific measures:

Choose high-quality crucible materials
Using high-quality graphite crucibles or crucibles made of other high-temperature resistant materials can effectively improve their service life. For example, the graphite crucible used in the aluminum ash recovery process can be coated with RLHY-305 graphite anti-oxidation coating to increase the antioxidant properties, thereby extending the service life by at least 30%.

Furnace drying after first use or long-term disuse
When the electric furnace is used for the first time or is used again after a long period of disuse, the furnace must be dried. The purpose of this is to avoid the furnace and the door from breaking due to excessive expansion and contraction.

Ensure that the electrical connection is firm
The various terminals inside the thermostat and the power connection wires between the furnace body and the thermostat should be tightened to avoid damage to electrical components due to poor contact. In addition, it is necessary to regularly check whether each terminal is firm.

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Keep the furnace clean

Before and after each use, the interior of the furnace must be kept clean, which not only helps to improve heating efficiency, but also reduces the erosion of impurities on the inner wall of the crucible furnace.

Optimize the working environment
During use, ensure that there is no conductive dust, explosive gas, and corrosive gas that can seriously damage metal and insulation around. At the same time, avoid damp, flammable and explosive items near the furnace, and try to keep the thermostat at least 30 cm away from the furnace body.

Handle the heated materials with care
The heated materials should be handled with care to prevent friction from damaging the furnace.

Reasonably design the molten pool structure
For medium-frequency graphite smelting crucible furnaces, reasonable molten pool structure design is also one of the important factors to extend its service life. By adopting appropriate furnace building technology and materials, physical erosion and thermal erosion can be effectively resisted.

Control the loading method
The correct loading method is also important, which can reduce the mechanical impact on the furnace lining and protect the furnace lining from premature damage.

In summary, the above methods can effectively increase the service life of the crucible furnace, reduce production costs, and improve work efficiency.

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