Bone China and preparation method thereof

A technology of bone china and bone powder, applied in the field of bone china, to achieve the effect of improving mechanical strength and light transmittance, good fluidity, and solving the instability of slurry

Inactive Publication Date: 2010-06-09
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] But generally speaking, there are few reports about adding zirconium to toughen bone china, mainly because the addition of additives will affect some other properties of bone china, such as whiteness, light transmittance, etc., and based on the previous research The analysis shows that the

Method used

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  • Bone China and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The blank is prepared according to the following mass percentages, bone meal 42.45%; feldspar 14.15%; quartz 11.32%; clay 32.08%.

[0034] 1) After drying the bone meal in an oven at 70°C, according to the heating rate of 5°C / min, calcining at 1200°C for 1 hour, cooling with the furnace, ball milling to a particle size of 1-2 μm, washing with water, and drying as a follow-up experiment. Bone meal raw material.

[0035] 2) Clay is not ball-milled, feldspar is ball-milled to a particle size of 2-3 μm, and quartz is ball-milled to a particle size of 4-5 μm.

[0036] 3) The ingredients are weighed according to the mass percentage of the raw materials, and then put into the mill for wet ball milling, and 0.2% water glass and 0.075% sodium citrate composite debonding agent added with the total dry material are used as the dispersant of the bone china slurry. The grinding medium adopts zirconium balls, and the balls are graded: small balls account for 50%, medium balls accoun...

Embodiment 2

[0041] The blank is prepared according to the following mass percentages, bone meal 51.89%; feldspar 14.15%; quartz 9.43%; clay 24.53%.

[0042] 1) After drying the bone powder in an oven at 70°C, according to the heating rate of 5°C / min, calcining at 1200°C for 1 hour, cooling with the furnace, ball milling to a particle size of 2-3 μm, washing with water, and drying as a follow-up experiment. Bone meal raw material.

[0043] 2) Clay is not ball-milled, feldspar is ball-milled to a particle size of 4-5 μm, and quartz is ball-milled to a particle size of 5-6 μm.

[0044] 3) The ingredients are weighed according to the percentage of the raw materials, and then put into the mill for wet ball milling, and 0.2% water glass and 0.075% sodium citrate compound debonding agent added with the total dry material are used as the dispersant of the bone china slurry. The grinding medium adopts zirconium balls, and the balls are graded: small balls account for 50%, medium balls account for...

Embodiment 3

[0049] The blank is prepared according to the following mass percentages, bone meal 50.93%; feldspar 10.19%; quartz 11.11%; clay 27.78%.

[0050] 1) After drying the bone powder in an oven at 70°C, according to the heating rate of 5°C / min, calcining at 1200°C for 1 hour, then cooling with the furnace, ball milling to a particle size of 3-4 μm, washing with water and drying as a follow-up experiment. Bone meal raw material.

[0051] 2) Clay is not ball-milled, feldspar is ball-milled to a particle size of 3-4 μm, and quartz is ball-milled to a particle size of 8-9 μm.

[0052] 3) The ingredients are weighed according to the percentage of the raw materials, and then put into the mill for wet ball milling, and 0.2% water glass and 0.075% sodium citrate compound debonding agent added with the total dry material are used as the dispersant of the bone china slurry. The grinding medium adopts zirconium balls, and the balls are graded: small balls account for 50%, medium balls accoun...

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Abstract

The invention discloses a bone china and a preparation method thereof, relates to a bone china and provides a bone china with better performance and a preparation method thereof. The blank raw materials of the bone china are 45-55 percent of bone powder, 255-34 percent of clay, 85-14 percent of feldspar and 85-12 percent of quartz. The preparation method comprises the following steps of: drying and calcinating the bone powder, cooling along with a furnace, ball milling and washing and then drying; carrying out ball milling on the clay, the feldspar and the quartz; mixing bone powder, clay powder, feldspar powder and quartz power which are subjected to ball milling; adding a dispersant and grinding to obtain a bone china sizing agent; pouring the bone china sizing agent into a mold and molding, then demolding and drying to obtain a blank; and repairing the bland, pouring the blank into the furnace and sintering to obtain the bone china. The invention solves the problems that the sizing agent molded by grouting has instability, low strength, easy crack and the like, caused by overhigh viscosity of the bone china sizing agent, improves the mechanical strength and the transmittance of the bone china, enables the comprehensive performance index of a bone body to reach an optimal balance by adopting a proper sintering system, avoids the production problem of higher production cost and has considerable market prospect.

Description

technical field [0001] The invention relates to a bone china, in particular to a bone china and a preparation method thereof. Background technique [0002] Bone china, formerly known as bone china, is usually referred to as bone china for short. It is prepared from animal ashes through degreasing, rinsing, high-temperature calcination and many special processes. Bone china is a kind of soft porcelain, and the animal ashes used are mostly high-quality bovine bones. Therefore, bone china porcelain is fine in texture, smooth in glaze, soft in luster, and feels like fat like jade. It is extremely elegant and luxurious, and has a high Transparency and certain mechanical strength. It has the reputation of "as thin as paper, as bright as a mirror, as white as jade, and as loud as a sound". In daily-use ceramics, bone china is widely used, and is recognized as the highest-grade porcelain in the world today, and is deeply loved by consumers. [0003] Modern bone china is based on ...

Claims

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Application Information

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IPC IPC(8): C04B35/00C04B35/057C04B35/64C04B35/626
Inventor 罗学涛龚惟扬李锦堂严星煌陈文辉
Owner XIAMEN UNIV
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