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Method for preparing high-strength, high-whiteness, high- thermal-shock-resistance petuntse

A technology with thermal shock resistance and high whiteness, applied in the field of ceramics, can solve the problems of cold and heat shrinkage and rupture of tableware, prone to collision, poor thermal shock resistance, etc., achieving excellent whiteness and thermal shock resistance, low production cost, The effect of improving whiteness

Inactive Publication Date: 2015-07-22
CHAOZHOU RONGCHANG CERAMIC IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Daily-use ceramics often collide during use, including cleaning after use, and are prone to scratches; when cooking food and disinfecting cupboards to heat and disinfect tableware, some tableware with poor thermal shock resistance will be damaged due to cold Thermal shrinkage causes cracking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Embodiment: (1). Get pyrophyllite mechanically and beat for 16 hours, after washing mud and magnetic separator to remove iron, cross 325 mesh sieves for subsequent use;

[0022] (2). Take kaolin and beat it mechanically for 16 hours. After washing mud and magnetic separator to remove iron, pass it through a 325-mesh sieve for use;

[0023] (3). Take 28% of potassium feldspar, 12% of alumina, 10% of illite, 10% of montmorillonite, 30% of the above-mentioned spare kaolin, and 10% of the above-mentioned spare pyrophyllite according to the weight percentage, then ball mill for 26 hours, and then The magnetic separator removes iron and passes through a 325-mesh sieve to obtain mud;

[0024] (4). Squeeze the sieved mud to obtain the high-strength, high-white, high-thermal-shock-resistant porcelain clay of this embodiment.

[0025] Production of ceramic products with the porcelain clay obtained in the embodiment, in the green body molding of ceramic products, the pass rate re...

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Abstract

The present invention provides a method for preparing high-strength, high-whiteness, high-thermal-shock-resistance petuntse. The preparation method comprises the following production steps of (1) mechanically beating pyrophyllite, washing to remove mud and removing iron by magnetic separator and sieving; (2) mechanically beating kaolin, washing to remove mud and removing iron by magnetic separator and sieving; (3) according to the percentage by weight, weighting 28% of potassium feldspar, 12% of aluminum oxide, 10% of illite, 10% of montmorillonite and 30% of kaolin, mixing with 10% of pyrophyllite, ball milling, removing iron by magnetic separator and sieving to obtain petuntse materials; (4) press filtering the above sieved petuntse materials to obtain petuntse. The petuntse prepared by the invention is suitable for the production of ceramic products for daily use, product qualification rate is high. The strength, whiteness and thermal shock resistance of the product are superior to that of bone china, porcelain and highly siliceous magnesia porcelain, production cost is low, products are particularly applied in dishwashers, microwaves, refrigerators and sterilized cupboard.

Description

technical field [0001] The invention relates to the field of ceramics, in particular to a method for preparing porcelain clay with high strength, high whiteness and high thermal shock resistance. Background technique [0002] Among the raw material formulas for the production of daily-use ceramics, there are various formulas such as bone ash porcelain clay, magnesia porcelain clay, and high-silicon porcelain clay. The products made have their own advantages and disadvantages. Bone-based, magnesian, and high-silicon daily-use porcelain usually has better light transmittance, but its impact resistance and thermal shock resistance are obviously insufficient, and its production cost is relatively high. In the daily-use ceramic industry, such products are often called "good-looking but not durable". [0003] Daily-use ceramics often collide during use, including cleaning after use, and are prone to scratches; when cooking food and disinfecting cupboards to heat and disinfect tab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/13
Inventor 黄岳喜
Owner CHAOZHOU RONGCHANG CERAMIC IND CO LTD
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