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Magnesia jade porcelain and its production method

A production method and technology for magnesia jade porcelain are applied in the field of magnesia jade porcelain and its production to achieve the effects of improving the rate of fired products, improving thermal insulation performance and reducing costs

Inactive Publication Date: 2016-04-27
CHONGQING DUMAI PORCELAIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of serpentine in porcelain, especially in high-grade porcelain, is seldom

Method used

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  • Magnesia jade porcelain and its production method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The talc raw material is calcined at 1400°C to obtain calcined talc. The serpentine mineral powder (yellow-green antigorite) was leached with 1mol / L hydrochloric acid for 0.5 hours, and the filter residue was taken as serpentine waste. Weigh the raw materials according to the weight ratio: 45 parts of calcined talc, 35 parts of clay, 20 parts of feldspar and 5 parts of serpentine waste (calculated as dry product). Adding water to the raw materials, ball milling, sieving, iron removal, pressure filtration, aging, mud refining under reduced pressure, and molding to obtain a green body. The biscuit is put into the kiln for biscuit firing, the bisque firing temperature is 850-900°C, and the time is 3.5 hours; the fired biscuit is taken out and colored, and then glazed, and the glaze firing temperature is 1200-1280°C, and the time is 5 hours; After burning, keep it warm for 0.5 hours and then take it out. Serve. The obtained magnesia jade porcelain is light yellow-green, t...

Embodiment 2

[0029] The talc raw material is calcined at 1300°C to obtain calcined talc. The serpentine mineral powder (dark green lizardite) was leached with 2mol / L hydrochloric acid for 0.5 hours, and the filter residue was taken as serpentine waste. Weigh the raw materials according to the weight ratio: 50 parts of calcined talc, 30 parts of clay, 10 parts of feldspar and 8 parts of serpentine waste (calculated as dry product). Adding water to the raw materials, ball milling, sieving, iron removal, pressure filtration, aging, mud refining under reduced pressure, and molding to obtain a green body. The biscuit is put into the kiln for biscuit firing, the bisque firing temperature is 850-900°C, and the time is 3 hours; after taking out the fired biscuit, it is colored and then glazed, and the glaze firing temperature is 1200-1280°C, and the time is 6 hours; After burning, keep it warm for 0.5 hours and then take it out. Serve. The obtained magnesia jade porcelain is dark green, transpar...

Embodiment 3

[0031] The talc raw material is calcined at 1300°C to obtain calcined talc. The serpentine mineral powder (light yellow chrysotile) was leached with 1.5mol / L hydrochloric acid for 0.5 hours, and the filter residue was taken as serpentine waste. Raw materials were weighed according to weight ratio: 47 parts of calcined talc, 33 parts of clay, 15 parts of feldspar and 10 parts of serpentine waste (calculated as dry product). Adding water to the raw materials, ball milling, sieving, iron removal, pressure filtration, aging, mud refining under reduced pressure, and molding to obtain a green body. Put the biscuit into the kiln for biscuit firing, the bisque firing temperature is 850-900°C, and the time is 4 hours; after taking out the fired biscuit and coloring it, then glaze firing, the glaze firing temperature is 1200-1280°C, and the time is 5 hours; After burning, keep it warm for 0.5 hours and then take it out. Serve. The obtained magnesia jade porcelain is light yellow in co...

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Abstract

The invention relates to a magnesia jade porcelain and a production method thereof. The blank of the magnesia jade porcelain is composed of the following raw materials in the weight ratio: 45-50 parts of calcined talc, 30-35 parts of clay, 10-20 parts of feldspar and serpentine 5-10 parts of stone waste (according to dry product); said serpentine waste is the filter residue after serpentine ore powder is leached with inorganic acid. The present invention reduces the production cost of magnesia jade porcelain due to the use of serpentine waste, and the combination of the formula also makes the yield of magnesia jade porcelain high in the firing process, further reducing the cost; the serpentine is rich in color and easy to dye, with Give magnesia jade porcelain rich colors; serpentine has the characteristics of heat insulation, which improves the heat insulation performance of magnesia jade porcelain, and has a good heat preservation effect. The method of the invention fully exerts the synergistic effect of the ingredients in the formula, and the fired porcelain has high yield, rich colors and good heat insulation, and is especially suitable for being used in catering porcelain.

Description

technical field [0001] The invention relates to the technical field of ceramic production, in particular to a magnesia jade porcelain and a production method thereof. Background technique [0002] Magnesia jade porcelain has the characteristics of high whiteness, good translucency, fine porcelain quality, and glossy glaze. It is a high-grade porcelain product in the field of Chinese and foreign ceramics, and it is currently recognized as an ideal porcelain for high-end hotels and restaurants. The main raw material of magnesia jade porcelain is talc, which has a flaky structure, which is easy to be oriented in the embryo body during the extrusion molding process, causing anisotropic repulsion of the embryo body, and causing shrinkage in different directions during the firing and cooling process. Uneven, so that the product produces greater stress, resulting in cracking of the product. Therefore, the firing of magnesia jade porcelain has the problems of difficulty in forming ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/16C04B35/622B09B3/00
CPCB09B3/00C04B35/16C04B35/62204C04B2235/656C04B2235/6567
Inventor 李子清周远飞万和龙
Owner CHONGQING DUMAI PORCELAIN
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