In today’s industrial field, all kinds of graphite processing parts have its shadow. The use of graphite products is directly related to the safety and efficiency of industrial production. If the material has oxidation corrosion problem, the safety risk index will be greatly increased. To solve the problem of oxidation and corrosion of graphite materials is also reflected in the level of science and technology of a country. The following graphite block manufacturers will tell you how to enhance the oxidation resistance of graphite products. Under high temperature, graphite includes graphite electrode, graphite mould and graphite crucible.
Under high temperature, the graphite of these three materials is easy to react with oxidation and combustion, resulting in the increase of porosity and structure porosity of the carbon layer on the surface of the material, affecting the service life. Taking the conventional baking of ladle as an example, the decarburized loose layer of more than 15mm is produced on the surface of carbon (graphite) refractories after baking, and the decarburized layer is quickly eroded after being filled with steel. The loss of graphite electrode in a steel plant accounts for more than one tenth of the production cost of the steel plant. It is understood that a 3kg graphite crucible can reduce its weight by more than 30% after three hours at high temperature of 1600 ℃, that is to say, the 3kg graphite crucible can become 2kg in a moment, and the oxidation is really fast. Graphite is a more valuable material. Corrosion and oxidation increase the production cost of enterprises and waste energy materials. Therefore, we should realize the harm of high temperature oxidation of graphite, and the great safety significance and energy-saving benefits of preventing oxidation.
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