| abstract |
The invention relates to a silicon carbide ceramic grate bar, which belongs to the technical field of refractory and wear-resistant materials. The related silicon carbide ceramic grate uses silicon nitride, silicon oxynitride, O-SiAlON, β-SiAlON and mullite as the bonding phase, and silicon carbide is the main crystal phase; the silicon carbide ceramic grate is silicon nitride, The content of silicon oxynitride, O-SiAlON, β-SiAlON, and mullite combined phase is 10%-30%, and the content of silicon carbide main crystal phase is 70%-90%. The silicon carbide ceramic grate bar of the invention has the characteristics of low density, low porosity, high thermal conductivity, good wear resistance, high high temperature strength, good thermal shock resistance, and environmental friendliness, and is beneficial to improve the pelletizing process of the belt roaster. The service life of grate bars, grate bars for chain-to-globe process, and grate bars for waste incineration grate furnaces. |