Silicon nitride ceramics is the material of choice for the outer protection tube of electric heaters and gas heaters due to its excellent high temperature performance.

Due to its good high temperature strength and strong thermal shock resistance, the product can withstand the thermal load of the high temperature heating element or burner for a long time, and the service life is more than one year;

Silicon nitride ceramics hardly react with aluminum liquid, so it will not pollute the aluminum liquid, which is conducive to maintaining the purity of the heated aluminum liquid;

Compared with the traditional upper radiant heating method, the energy saving efficiency reaches 20%-30%, and the superheat oxidation of the upper aluminum liquid is effectively avoided.

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