Process for preparing lithium nickelate and process for preparing enamel using it as adherence promotor

Abstract

The present invention prepares superfine lithium nickelate crystal with Li2CO3 and Ni(NO3)2.6H2O in the ratio of 1 to 10-40 and through mixing and treatment in controlled temperature and time. The enamel preparing process with lithium nickelate as the adherence promoter includes introducing lithium nickelate into enamel material during milling, smelting at controlled temperature, ball milling, grinding and baking. Using lithium nickelate as the adherence promoter can overcome the demerit of scalelike enamel crack and raise the performance of enamel product greatly.

Description

technical field [0001] The invention relates to a method for preparing an enamel adhesive and a method for making enamel, in particular to a method for synthesizing an ultrafine lithium nickelate powder crystal and introducing the ultrafine lithium nickelate powder crystal as an enamel adhesive It is a method of making enamel products that greatly improves the adhesion strength to the enamel bottom glaze. Background technique [0002] According to foreign literature Journal of Crystal Growth, v 234, n 1, January, 2002, p176-183 reports, the synthesis and application of lithium nickelate are reported, but the raw materials used are mostly hydroxides of lithium and nickel, with high cost and low crystallinity. Large grain size, small adhesion effect. [0003] Adhesives such as nickel oxide and cobalt oxide in the traditional enamel process are introduced into the enamel bottom glaze by melting. Because the general adhesives have large particle size and low activity, they have...

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Problems solved by technology

[0002] According to foreign literature Journal of Crystal Growth, v 234, n 1, January, 2002, p176-183 reports, the synthesis and application of lithium nickelate are reported, but the raw materials used are mostly hydroxides of lithium and nickel, with high cost and low crystallinity. Large grain size, small adhesion effect

[0003] Adhesives such as nickel oxide and cobalt oxide in the traditional enamel process are introduced into the enamel bottom glaze by melting. Because the general adhesives have large particle size and low activity, they have little effect on promoting the adhesion of enamel. The amount is also very large, the effect is not ideal, and because it requires a large amount of addition, it will not only have a negative impact on the structure of the porcelain layer, such as the phenomenon of scale explosion, which will affect the appearance of the enamel, and it is not cost-effective economically.