Do you Know the Antioxidant Methods Used to Prevent Graphite Materials?

Jul. 26, 2021

Graphite carries mold antioxidants as oily liquids. Graphite rods are often used as electric heating elements in high-temperature vacuum furnaces. The maximum operating temperature can reach 3000°C. It is easy to oxidize at high temperatures. Except for vacuum, it can only be used in neutral or reducing atmospheres. As a Graphite Electrodes Manufacturer, share it with you.

Graphite Electrodes

Graphite Electrodes

Its thermal expansion coefficient is small, thermal conductivity is large, resistivity is (8~13)×10-6 Ω·m, processability is better than SiC, MoSi2 rod, high temperature resistance, extreme cold and extreme heat resistance, good price Cheaper. Graphite electrodes are mainly made of petroleum coke and needle coke as raw materials, coal tar pitch as a binder, and are made through calcination, batching, kneading, pressing, roasting, graphitization, and machining. It releases electric energy in the form of an electric arc in an electric arc furnace. The conductors that heat and melt the charge can be classified into ordinary power, high power and ultra-high power according to their quality indicators.

Graphite electrodes mainly include four types of ordinary power graphite electrodes, anti-oxidation coating graphite electrodes, high-power graphite electrodes and ultra-high-power graphite electrodes. Graphite block is a kind of artificial graphite, and artificial graphite is made by artificial heating of coke products. Generally, if it is purified to make high-purity or carbon fiber, the added value is high. The active ingredient is nano-structured ceramic material particles with high temperature resistance. In the oxidation technology environment where graphite molds are used at different temperatures within 1300°C, its anti-oxidation effect can be surpassed. After the graphite mold companies of various product models have studied the immersion method of the graphite mold antioxidant protective agent, the liquid can penetrate into the pores of the graphite mold, and there is no formation of a layer of about 0.02mm in the pores of the graphite mold and the processing surface of the graphite mold. Anti-oxidant protective film. It is this protective film that can effectively isolate the air quality from direct contact with the graphite mold and cause chemical oxidation system reaction. Thereby, it can effectively resist the oxidation of graphite molds and extend the service life of graphite molds in my country by about 90%. The anti-oxidation protective agent for graphite molds can block the reaction between oxygen and the oxidation behavior of graphite molds, and delay the rate of cell oxidation. Our company also has Graphite Electrodes on sale, welcome to contact us.

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