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A method for producing fine ceramic products using waste ceramics as the main material

A technology of fine ceramics and waste ceramics, applied in the field of ceramics manufacturing, can solve problems such as cracking, and achieve the effect of high degree of porcelainization, full utilization of resources, and high degree of delicacy

Active Publication Date: 2018-07-10
JINGDEZHEN CIHAI CERAMICS IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method of producing fine ceramic products with waste ceramics as the main raw material, which can solve the problems of ceramic body molding and cracking after firing when the content of waste ceramics in the raw material exceeds 90% WT, At the same time, the matching of ceramic body and glaze has a wider range of adaptation

Method used

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  • A method for producing fine ceramic products using waste ceramics as the main material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] (1) Put the waste ceramics into the ball mill, and based on the weight of the waste ceramics, add 2% of zinc oxide, 2% of titanium dioxide, 0.3% of absolute ethanol and 2.0% of oleic acid and ball mill for 15 hours until the median diameter of the mixed powder is 10-18um;

[0013] (2) After the mixed powder is sieved, add paraffin wax with 8% weight of waste ceramics to make blocks;

[0014] (3) Heat and melt the block, send it to the die-casting machine and inject it into the metal mold under 0.5MPa pressure;

[0015] (4) Degrease and biscuit at 800°C after demoulding;

[0016] (5) The biscuit-fired green body is put into the kiln according to the traditional color glaze decoration process and fired at 1250°C to obtain the finished product.

Embodiment 2

[0018] (1) Put the waste ceramics into the ball mill, and based on the weight of the waste ceramics, add 2% zinc oxide, 4% titanium dioxide, 1.0% absolute ethanol and 1.0% oleic acid and ball mill for 15 hours until the median diameter of the mixed powder is 10-18um;

[0019] (2) After the mixed powder is sieved, add paraffin wax with 10% weight of waste ceramics to make blocks;

[0020] (3) Heat and melt the block, send it to the die-casting machine and inject it into the metal mold under 0.5MPa pressure;

[0021] (4) Degrease and biscuit at 900°C after demoulding;

[0022] (5) The biscuit-fired green body is traditionally glazed with green glaze and high-temperature kiln glaze, and the firing temperature is 1300°C to obtain the finished product.

Embodiment 3

[0024] (1) Put the waste ceramics into the ball mill, based on the weight of the waste ceramics, add 5% zinc oxide, 2% titanium dioxide, 1.0% absolute ethanol and 1.0% oleic acid and ball mill for 15 hours until the median diameter of the mixed powder is 10-18um;

[0025] (2) After the mixed powder is sieved, add paraffin wax with 10% weight of waste ceramics to make blocks;

[0026] (3) Heat and melt the block, send it to the die-casting machine and inject it into a metal mold under a pressure of 0.5MPa, and the injection temperature is 80°C;

[0027] (4) Degrease and biscuit at 900°C after demoulding;

[0028] (5) Glaze the bisque-fired body to obtain an over-glaze painted porcelain body, and put it into a kiln for firing at 1300°C to obtain a finished product.

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Abstract

The invention provides a method for producing fine ceramic products with waste ceramic adopted as a main material. The waste ceramic is adopted as the main material, zinc oxide and titanium dioxide are adopted as accessories, and absolute ethyl alcohol, oleic acid and paraffin are added; all the raw materials are subjected to injection molding, degreasing and biscuiting, then a traditional under-glaze, on-glaze or in-glaze decoration process is adopted, the raw materials are put in a kiln and sintered, and the fine ceramic products are obtained. Ceramic bodies prepared with the method can be matched with both intermediate-temperature glazes and high-temperature glazes; the produced fine ceramic products contain 90% or more of waste ceramic and 0.5% or less of moisture content and have the characteristics of high vetrification degree, large density, high strength, size precision and fineness degree, and the like.

Description

technical field [0001] The invention belongs to the technical field of ceramic manufacturing, and in particular relates to a method for producing fine ceramic products with waste ceramics as the main material. Background technique [0002] The ceramic industry produces a large amount of ceramic waste every year, which is difficult to use and can only be landfilled, which not only causes a huge waste of resources, but also causes environmental pollution. Although some people try to recycle them as raw materials for other industrial products, because the waste ceramics are sintered at high temperature, the waste ceramics become barren raw materials, the plasticity is greatly reduced, and its application range is greatly limited, especially in the past. Waste ceramics are used as the main material to make fine ceramic products, such as ceramic beads, ceramic jewelry and other fine electronic ceramic products, which require a relatively high level of fineness and fineness. Rati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/00C04B35/622C04B41/86
CPCC04B35/00C04B35/62204C04B41/5022C04B41/86C04B2201/20C04B2201/50C04B2235/3232C04B2235/3284C04B41/0072
Inventor 吕智
Owner JINGDEZHEN CIHAI CERAMICS IND CO LTD
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