Lithium-aluminum-silicon ceramic white microcrystalline glass and manufacturing method thereof

The invention relates to lithium-aluminum-silicon ceramic white microcrystalline glass and a manufacturing method thereof, and is particularly suitable for matching application of microcrystalline glass plates for microwave ovens. The glass mainly comprises the following raw materials in percentage by weight:SiO2 67.0-70.0% ; Al2O3 17.0-20.0%; Li2O 2.7-3.5%; MgO 0.4-1.4%; ZnO 0.4-1.5%; BaO 0.1-2.0%; TiO2 1.5-3.0%; ZrO2 1.2-2.0%; P2O5 0.5-2.0%; MgF2 0.1-0.5%; K2O 0.2-0.8%; Na2O 0.2-0.8%; Sb2O3 0.1-0.25%; SnO2 0.1-1.0%; NaCl 0.1-0.8%. The method comprises the following steps: weighing the raw materials, performing mixing, uniform stirring, melting in a tank furnace, clarifying, homogenizing, cooling, and calendering to form a plate, performing annealing, nucleating and crystallizing to obtain the lithium-aluminum-silicon ceramic white microcrystalline glass plate, and performing cutting, edging, printing and inspecting to obtain the plate special for a microwave oven. The plate has the advantages of small micro