Low-temperature adherence strength highly-firing amplitude broad glass lining bottom glaze

Abstract

The present invention relates to a enamel glass ground glaze with wide sintering amplitude and low-temperature adherence strength, which comprises A hardened materials, B medium materials, C soft materials, mill additions and water; calculated according to the weight percentage, the C soft materials are mainly composed of the following raw materials such as 34.19 to 36.79 percent of SiO₂, 3.5 to 4.0 percent of Al₂O₃, 20.00 to 21.0 percent of B₂O₃, 4.00 to 15.00 percent of Na₂O, 3.00 to 4.00 percent of K₂O, 2.5 to 3.0 percent of CaF₂, 5.5 to 6.5 percent of MnO₂, 1.8 to 2.2 percent of Fe₂O₃, 1.8 to 2.2 percent of CuO, 1.70 to 1.90 percent of CoO, 4.5 to 5.5 percent of Li₂O and 1.8 to 2.2 percent of TiO₂; calculated according to the mill addition mixture ratio, the A hardened materials take 35 to 45 percent, the B medium materials take 25 to 35 percent, the C soft materials take 25 to 35 percent, the clays take 5.5 to 6.5 percent, the Alpha-Al₂O₃ takes 2.8 to 5.0, the zircon powders ZrO₂ take 4.0 to 7.5 percent, the nepheline powders take 2.8 to 5.2 percent, the sintering quartz powders take 4 to 8 percent, the borax decathydrates take 0.8 to 1.2 percent, the magnesium oxides take 1.8 to 2.2 percent and the distilled water takes 65 to 75 percent. The present invention can strengthen the low-temperature adherence strength of the ground glaze and increase the sintering amplitude.

Description

technical field [0001] The invention relates to a glass-lined glaze, in particular to a glass-lined bottom glaze with high low-temperature adhesion strength, high firing width and wide firing range. Background technique [0002] The so-called glass-lined glaze is an enamel glaze that is resistant to strong acid corrosion. Because its formula and melting process are close to glass, it is called glass-lined glaze. Conventional glass-lined glaze is close to sodium-aluminum-titanium-zirconium-boron-silicate glass, and a small amount of colorant is added. Glass-lined glazes include glass-lined top glazes and glass-lined bottom glazes. [0003] The functions of the glass-lined bottom glaze: one is used as a transition layer or an adhesion layer, so that the top glaze and steel are connected firmly and stick together, and the other is to store gas. Because CO, CO 2 、H 2 And other gases, some of these gases must stay in the micropores of the bottom glaze to be stable. At the sa...

AI Technical Summary

Problems solved by technology

[0036] Conventional glass-lined bottom glaze has a high firing temperature due to unreasonable formula composi