The antioxidant of the vacuum heat treatment furnace graphite liner vacuum furnace graphite heating tube is mainly composed of polycrystalline graphite. Graphite is a layered crystal with a hexagonal planar grid between carbon atoms. Although graphite is an inorganic non-metallic material, it is called a semi-metal because of its good thermoelectric conductivity. Graphite has a higher thermoconductivity than some metals and has a much lower coefficient of thermal shrinkage than metals. The high chemical stability makes it of great value in engineering applications.
1. If the amount of graphite heating tube of the vacuum heat treatment furnace graphite liner vacuum furnace to be processed is small, (graphite powder) can be brushed, that is, the surface of the graphite heating tube of the vacuum heat treatment furnace graphite liner vacuum furnace can be brushed on average with the antioxidant YH01 of graphite products. After each brushing, wait until the last coat of coating is dry before stopping. Once applied, let it dry naturally at room temperature for two to three days.
Graphite is chemically inert in non-oxidizing media and has good corrosion resistance. Except for strong acids and strong oxidizing media, graphite is not corroded by other acids and alkali salts and does not react with any organic compounds. As a result, it can make antioxidants.
2. The impregnation container should be prepared according to the size and size of the graphite heating tube of the vacuum heat treatment furnace graphite liner of the vacuum furnace. The impregnating tank is not limited by the material, but it should be resistant to acid corrosion, have good sealing performance, cannot be penetrated by liquid, have a certain hardness (graphite powder), and have good durability. Material.
3. Pour the graphite products into the impregnating agent and soak them at room temperature for about half an hour.
4. According to the size and needs of the tank, add a certain amount of antioxidant impregnating agent YH01 to the graphite heating tube of the vacuum heat treatment furnace graphite liner. The ordinary impregnating agent should be 10cm smaller than the graphite piece.
5. Place the impregnated vacuum heat treatment furnace graphite inner tank graphite heating tube in the center with good ventilation conditions, and it can be used for about two to three days without dust and natural drying.