Black silicon carbide powder is refined into different particle sizes through multiple processes to meet different industrial needs, and strict raw material selection and strict production process are the key to quality.
First, the raw material is crushed. The hammer crusher is used to crush petroleum coke and crush it to the particle size required by the process.
2. Ingredients and mixtures. Ingredients and mixing are the process of weighing and mixing according to the prescribed recipe. The batching platform is adopted for this project, and the concrete mixer is used for mixing, and the petroleum coke and quartz sand are batched and mixed according to the process requirements.
3. Electric furnace preparation. The last used furnace is refurbished and reorganized to be put into service again. The work includes cleaning the furnace base, trimming the electrodes, cleaning and repairing the furnace wall, removing the loading force, 1 gear, inspecting, and eliminating other defects in the furnace.
4. Furnace loading. According to the specified black silicon carbide powder charge type, part and size, the furnace is filled with reactive material, thermal insulation material and furnace core material, and the side wall of the melting furnace with heat preservation and material holding function is built.
5. Sending power to smelt silicon carbide. When the furnace is connected to the transformer, electricity can be sent. The power transmission starts 15 minutes with an open flame to ignite CO, and the smelting process lasts 170h.
6. Cooling. After the black silicon carbide powder smelting furnace is stopped, natural cooling is carried out, and then the steak furnace (unloading wall, scrap material) is carried out, and free cooling continues.
7. Grading. Furnace grading is the process of removing crystal blocks and graphite from the furnace and separating the primary product, secondary product, graphite and other substances.
You can make a simple understanding of the above black silicon carbide powder production process, and the improvement of the process can reduce the incorporation of impurities and reduce production costs.
