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Roller kiln low-temperature sintered colorful halo crystal glaze and preparation method thereof

A technology of low-temperature firing and roller kiln, which is applied to clay products, other household utensils, and other applications. It can solve the problems of single glaze effect, high firing temperature, and long holding time, and achieve lower viscosity and lower firing rate. Effect of temperature, increasing fluidity

Active Publication Date: 2021-01-26
佛山市玉矶材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of high firing temperature, long holding time and single glaze effect in the existing crystalline glaze preparation process, the present invention provides a colorful halo crystalline glaze fired at low temperature in a roller kiln and its preparation method. A crystalline glaze suitable for low-temperature firing in a roller kiln has been developed. The maximum firing temperature is 1125-1135°C, and the firing cycle is 190-210 minutes. With the technical effect of metal and crystal glaze

Method used

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  • Roller kiln low-temperature sintered colorful halo crystal glaze and preparation method thereof

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preparation example Construction

[0036] A method for preparing colorful halo crystalline glaze fired at low temperature in a roller kiln of the present invention comprises the following steps:

[0037] S1. Preparation of bottom glaze:

[0038] First weigh the raw materials according to the composition weight of the bottom glaze; then put them into the ball mill, and add 1-4wt‰ of dispersant and 2-5wt‰ of debonding agent at the same time, wherein: the dispersing agent is sodium hydroxymethyl cellulose, degumming The agent is sodium tripolyphosphate, add water and grind for 4-6 hours to obtain the bottom glaze glaze slurry, the specific gravity of the bottom glaze slurry is 1.65-1.70, and the fineness of the glaze slurry is 0.1-0.2% of the million-hole sieve; finally, the bottom glaze The glaze slurry is filtered through a 100-mesh double-layer sieve, and after removing iron, it is pumped to the slurry tank to stave, and the colorful halo crystal underglaze is obtained;

[0039] S2. Preparation of top glaze: ...

Embodiment 1

[0045] The low-temperature fired colorful halo crystalline glaze of the roller kiln of this embodiment includes a bottom glaze and a surface glaze, wherein: the composition of the bottom glaze is calculated by weight: 80 parts of lead-zinc frit, 1 part of cobalt blue, and 10 parts of cobalt black The composition of the surface glaze is calculated by weight: 50 parts of high boron frit, 5 parts of titanium dioxide, 10 parts of zinc oxide, 5 parts of talc, 15 parts of manganese dioxide, 1 part of alum pentoxide, and 1 part of copper oxide.

[0046] The preparation method of the roller kiln low-temperature firing colorful halo crystalline glaze of this embodiment comprises the following steps:

[0047] S1. Preparation of bottom glaze:

[0048] First weigh the raw materials according to the composition weight of the bottom glaze; then put them into a ball mill, add 2wt‰ of dispersant and 2wt‰ of debonding agent at the same time, add water and grind for 5 hours to obtain the bottom...

Embodiment 2

[0054] The roller kiln low-temperature firing colorful halo crystalline glaze of this embodiment includes a bottom glaze and a top glaze, wherein: the composition of the bottom glaze is calculated by weight: 90 parts of lead-zinc frit, 3 parts of cobalt blue, and 16 parts of cobalt black The composition of the surface glaze is calculated in parts by weight: 70 parts of high boron frit, 10 parts of titanium dioxide, 20 parts of zinc oxide, 15 parts of talc, 10 parts of calcite, 20 parts of manganese dioxide, 5 parts of alum pentoxide, copper oxide 5 servings.

[0055] The preparation method of the roller kiln low-temperature firing colorful halo crystalline glaze of this embodiment comprises the following steps:

[0056] S1. Preparation of bottom glaze:

[0057] First weigh the raw materials according to the composition weight of the bottom glaze; then put them into a ball mill, add 3wt‰ of dispersant and 3wt‰ of debonding agent at the same time, add water and grind for 6 hour...

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Abstract

The invention relates to the technical field of new ceramic materials, and particularly discloses a roller kiln low-temperature sintered colorful halo crystal glaze which comprises a ground glaze anda cover glaze, and the ground glaze comprises the following components in parts by weight: 80 to 90 parts of lead-zinc frit and 10 to 20 parts of pigment; the cover glaze is prepared from the following components in parts by weight: 50 to 70 parts of high-boron frit, 5 to 10 parts of titanium dioxide, 10 to 20 parts of zinc oxide, 5 to 15 parts of talc, 0 to 10 parts of calcite and 17 to 30 partsof seeding colorant, wherein the seeding colorant is prepared from manganese dioxide, vanadium pentoxide and copper oxide. The preparation method of the roller kiln low-temperature sintered colorful halo crystal glaze comprises the steps of preparing the ground glaze and cover glaze, glazing and sintering, wherein the highest sintering temperature is 1125 to 1135 DEG C, and the sintering period is190 to 210 min. The crystal glaze suitable for roller kiln low-temperature sintering is prepared, the glaze surface can show a circle of colorful halo under the sun, and the process effect of metal and crystal glaze is achieved.

Description

technical field [0001] The invention relates to the technical field of new ceramic materials, in particular to a low-temperature firing colorful halo crystalline glaze in a roller kiln and a preparation method thereof. Background technique [0002] During the firing process of crystalline glaze, because the glaze contains sufficient crystalline substances, it is in a saturated state after melting, and crystallization is formed during the slow cooling process. It is a highly decorative artistic glaze, which originated from the color glaze in ancient my country. The fundamental feature of crystalline glaze that is different from ordinary glaze is that the glaze contains a certain number of visible crystals. The crystalline glazes in ancient my country were all high-temperature iron crystalline glazes. In the Song Dynasty, there were mature crystalline glaze varieties such as rabbit hair and oil drops; in the Qing Dynasty, tea powder and iron embroidery became more and more exq...

Claims

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Application Information

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IPC IPC(8): C04B41/89C03C8/14C03C8/20
CPCC03C8/14C03C8/20C03C2209/02C04B41/009C04B41/52C04B41/89C04B33/00C04B35/00C04B41/4535C04B41/0072
Inventor 陈迪晴
Owner 佛山市玉矶材料科技有限公司
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