Low-temperature glaze sintered in one shot and making process for porcelain with same

A low-temperature glaze and glaze technology, applied in the field of ceramics, can solve problems such as monotonous color rendering, large differences in glaze effects, and low-grade products, so as to reduce energy consumption and production costs, low firing temperature, and clear glaze color Effect

Inactive Publication Date: 2016-09-07
福建省德化汇远陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] With the rapid development of science and technology, there have been many researches on low-temperature firing of ceramics in recent years, and great achievements have been made. For example, the authorized announcement number is: the manufacturing method of low-temperature glazed ceramics disclosed by the authorized announcement number CN102863259B. When in use, the green body needs to be bisque-fired at 1020-1050°C, and then fired at 900-1000°C and baked at 200-300°C in sequence. Although the glaze firing temperature is low, the construction process is complicated. It needs to be fired many times, and the consumption is limited; another example is the glaze preparation method of an ultra-low temperature glaze disclosed by the authorized announcement number CN103910537B, which discloses an ultra-low temperature glaze with a sintering temperature of 550°C-800°C. Introducing a large amount of zinc oxide into the material can reduce the melting temperature of the glaze, but it will have an adverse effect on the color development. The fired porcelain glaze has many defects, is easy to foam, and the color is monotonous and dull. The glaze effect of the medium temperature glaze fired above 1250 ℃ is very different, and the products fired are of low grade and the effect is not ideal

Method used

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specific Embodiment 1

[0023] A low-temperature glaze fired once, the glaze is composed of neutral oxides, acidic oxides and co-solvents, wherein the neutral oxides are SiO 2 , the acidic oxide is Al 2 o 3 with B 2 o 3 , Flux including K 2 0. Na 2 0. Li 2 0, CuO, Mg0, BaO, ZnO, wherein the ratio of neutral oxide to flux is 1:3.9, the ratio of acidic oxide to flux is 1:2.6, and Al 2 o 3 with B 2 o 3 The ratio of the flux is 1:2.5, and the chemical composition of the flux is: K 2 0 21%, Na 2 0 18%, Li 2 0.8%, CuO 22%, MgO 18%, BaO 6%, ZnO 7%.

[0024] The preparation technology of one-time fired low-temperature glazed porcelain is characterized in that, using the above-mentioned one-time fired low-temperature glaze, the specific steps are as follows:

[0025] Step 1, preparing low-temperature glaze for firing once;

[0026] Step 2, applying a low-temperature glaze on the ceramic body to be fired once;

[0027] Step 4, after the primary low-temperature glaze is dried, the ceramic body is...

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Abstract

The invention specifically relates to a low-temperature glaze which may be sintered in one shot and a making process for porcelain with the low-temperature glaze, belonging to the technical field of ceramics. The low-temperature glaze sintered in one shot is composed of a neutral oxide, acid oxides and a fluxing agent, wherein the neutral oxide is SiO2, the acid oxides are Al2O3 and B2O3, the fluxing agent comprises a plurality of components, a ratio of the neutral oxide to the fluxing agent is 1: 3-5 and a ratio of the acid oxides to the fluxing agent is 1: 2-4. The low-temperature glaze may be sintered in one shot and sintering temperature is 1, 100 to 1, 150 DEG C; although the low-temperature glaze has a low sintering temperature, the low-temperature glaze has a smooth glaze surface, a clear and transparent glaze color and high light transmittance and reaches the effect of a glaze sintered at a medium temperature of 1250 DEG C or above. In preparation of the low-temperature glaze, 20 to 30% of fuel can be saved; energy consumption and production cost are reduced; lead and chromium are not dissolved out; and the effect of energy conservation, environmental protection and usage safety are obtained.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a low-temperature glaze that can be fired once and a manufacturing process for ceramics with the low-temperature glaze. Background technique [0002] Energy consumption is one of the main costs of ceramic production, and the most effective way to reduce energy consumption is to reduce the firing temperature of ceramics. In addition, low-temperature firing can also prolong the life of the kiln, improve the economic benefits of products, and increase the output of the kiln. Therefore, achieving low-temperature firing is what every ceramic manufacturer pursues. [0003] With the rapid development of science and technology, there have been many researches on low-temperature firing of ceramics in recent years, and great achievements have been made. For example, the authorized announcement number is: the manufacturing method of low-temperature glazed ceramics disclosed by the authoriz...

Claims

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Application Information

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IPC IPC(8): C03C8/14C04B41/86
CPCC03C8/14C04B41/5022C04B41/86
Inventor曾俩丰
Owner福建省德化汇远陶瓷有限公司