Method for manufacturing middle-temperature metal glaze and glaze material thereof

Abstract

The invention relates to a middle temperature metal glaze manufacturing method and a glaze thereof, which adopts an SiO2-Li2O-PbO ternary system as glaze basic material, and the glaze basic material is made to be frits; the frits and part of metal oxides (such as V2O5, MnCO3, CuO and WO2, etc.) and other auxiliary glazes are mixed, and glaze slip is made by a way of adding water and ball milling; the glaze slip is applied on a white mud raw billet and is put in to a kiln after being dried, the metal oxides produce saturate state in the melting process through high temperature firing, and a metal glaze is formed on the glaze surface when in cooling. The glaze formula is as follows according to weight portion ratio: frits: 100 portions; manganese carbonate: 12 to 15 portions; copper oxide: 3 to 5 portions; vanadium pentoxide: 2 to 4 portions; kaolin: 5 to 7 portions; tungsten oxide: 0.5 to 1.5 portions; quartz: 20 to 30 portions; barium carbonate: 7 to 8 portions.

Description

Technical field: [0001] The invention relates to a medium-temperature (1230°C-1300°C) metallic glaze, which is golden in color, strong in metallic feeling, bright in glaze surface and extremely beautiful. It can be widely used in daily-use pottery and artistic pottery decoration, and can also be used as color glaze alone, belonging to the field of ceramic glaze. technical background: [0002] Metallic luster glaze refers to the ceramic luster glaze that produces tone and luster on the glaze surface, which is similar to a certain metal surface. Such as golden glaze, silver glaze, copper glaze, copper red metallic luster glaze, etc. [0003] At present, there are usually four types of methods for making metallic luster glazes in my country: [0004] 1. Low-temperature coating method, that is, coating a layer of metal salt solution on the clean ceramic glaze surface. When coating, the ceramic product should be heated, and after drying, it should be baked at 600-800 ° C to obt...

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Problems solved by technology

[0006] 3. Electroplating method, through electroplating, a layer of metal ions is attached to the surface of the glaze. The disadvantage is that the cost is high, the surface is not wear-resistant, easy to oxidize, and is rarely used;

This method has been used in glazed tiles (980-1150°C) and stoneware (1140-1200°C) in modern times. Because its performance cannot meet the standard of daily-use ceramics, the metal effect is not good and unstable, and it has not been widely promoted and used. Mass production, only for glaze decoration

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