What is 90 Silicon carbide ?
90 Silicon carbide as one of the ceramic materials, due to its excellent properties, such as high hardness, low thermal expansion, good heat resistance, excellent oxidation resistance and corrosion resistance, has been widely used in the chemical industry.
Silicon carbide production process is described as follows
⑴, raw material crushing: The hammer crusher is used to break the petroleum coke to the particle size required by the process.
(2) Dosing and mixing: dosing and mixing is the process of weighing and mixing according to the prescribed formula, and dosing and mixing of petroleum coke and quartz sand according to the process requirements.
(3) Electric furnace preparation: electric furnace preparation is to re-trim and finish the last used furnace to put it into use again.
(4) Furnace loading: Furnace loading is to fill reaction material, thermal insulation material, core material into the furnace in accordance with the specified type, part and size of the furnace, and to build the side wall of the melting furnace with thermal insulation and material holding.
(5) Power supply smelting: Power can be supplied after the smelting furnace and transformer are connected.
(6) Cooling: After the smelting furnace is stopped, natural cooling is carried out, and then pickpocketing is carried out to continue natural cooling.
⑺ Oven grading: oven grading is the process of removing the crystalline block and graphite from the furnace, and separating the first grade, second grade, graphite and other things.
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