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Lead-free low-temperature tianmu glaze preparation method

A kind of Tianmu glaze and low temperature technology, applied in the field of preparation of lead-free low temperature Tianmu glaze, can solve the problem of not seeing ceramic Tianmu glaze, etc., and achieve the effect of saving clay and mineral resources, broadening the selection surface, and improving the market prospect.

Inactive Publication Date: 2019-06-25
王必胜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, through the search of domestic and foreign literature, there is no relevant research on the preparation of ceramic Tianmu glaze with chlorite as the main raw material.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Method for decorating ceramic products with Tianmu glaze

[0013] The first step, raw materials: 80% chlorite, 10% calcined ashes, 5% Longyan kaolin, 5% strontium oxide, and the chemical composition weight percentage of chlorite is: SiO 2 63.00%, Al 2 o 3 17.51%, Fe 2 o 3 7.11%, TiO 2 0.84%, CaO 0.38%, MgO1.89%, K 2 O 3.42%, Na 2 O 2.09%, IL 3.76%;

[0014] The second step, ball milling and sieving: raw materials and water are ball milled at a weight ratio of 1:0.8, and then passed through a 250-mesh sieve;

[0015] The third step, glazing: apply the glaze slurry prepared in the previous step on the ceramic body by glazing, and the thickness of the glazing is 0.9mm;

[0016] The fourth step, firing: After the green body is dried, it is fired in a reducing atmosphere at 1200 ° C, and it is kept for 120 minutes;

[0017] According to the above method, the ceramic product decorated with Tianmu glaze is prepared, the glaze surface has high gloss, the overall co...

Embodiment 2

[0019] Method for decorating ceramic products with Tianmu glaze

[0020] The first step, raw materials: 80% chlorite, 10% calcined ashes, 5% Longyan kaolin, 5% strontium oxide, and the chemical composition weight percentage of chlorite is: SiO 2 64.00%, Al 2 o 3 17.00%, Fe 2 o 3 7.50%, TiO 2 0.90%, CaO 1.38%, MgO1.10%, K 2 O 3.00%, Na 2 O 2.12%, IL 3.00%;

[0021] The second step, ball milling and sieving: raw materials and water are ball milled at a weight ratio of 1:0.8, and then passed through a 250-mesh sieve;

[0022] The third step, glazing: apply the glaze slurry prepared in the previous step on the ceramic body by glazing, and the thickness of the glazing is 0.8mm;

[0023] The fourth step, firing: After the green body is dried, it is fired in a reducing atmosphere at 1200 ° C, and it is kept for 120 minutes;

[0024] According to the above method, the ceramic product decorated with Tianmu glaze is prepared, the glaze surface has high gloss, and the whole ...

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Abstract

The invention relates to a lead-free low-temperature tianmu glaze preparation method, wherein chlorite mineral is used as a main raw material, ball milling, sieving and drying are performed to obtaina tianmu glaze, a ceramic billet is applied with the tianmu glaze, firing is performed at a temperature of 1200 DEG C, and thermal insulation is performed for 5-120 min to prepare a glazed decorationceramic product. According to the present invention, the tianmu glaze is prepared by using chlorite as the raw material so as to save the clay and mineral resources and greatly reduce the production cost of the ceramic product; and the prepared tianmu glaze can be widely used for daily-use ceramics, architectural ceramics and art ceramics.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials (ceramics), and in particular relates to a preparation method of lead-free low-temperature Tianmu glaze. Background technique [0002] Tianmu glaze refers to a dark brown or dark brown colored glaze with striped or spotted patterns on porcelain from Jian'an, Jizhou and other places. At present, most iron-based glazes use pure Fe 2 o 3 Chemical raw materials are used for batching, which is costly and expensive. [0003] Chlorite is a layered silicate mineral with complex structure and variable chemical composition, which belongs to clay minerals. The commonly called chlorite refers to mineral species mainly composed of Mg and Fe, namely clinolite, oolitic chlorite, etc., which are mainly the products of medium and low temperature hydrothermal, shallow metamorphism and deposition. Chlorite minerals are widely distributed in the earth's crust, and in terms of composition, they have...

Claims

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Application Information

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IPC IPC(8): C03C8/00
Inventor 王必胜
Owner 王必胜