Some graphite molds need antioxidant treatment after production. Antioxidants are generally used for antioxidant treatment.

The antioxidant is an oily liquid. The ingredients are high-temperature resistant nano-ceramic particles. When the graphite mold is in the oxidation environment within 1300°C, its antioxidant effect is excellent. 

Various types of graphite molds are treated with antioxidant impregnation. Antioxidant liquids can seep into pores of graphite mold. At the same time, antioxidants can form 0.02mm anti-oxidation protective film on the surface of the graphite mold. In this way, it can effectively resist the oxidation of graphite mold. This method can extend the service life of graphite die up to about 90%.

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