Ceramic glaze

A ceramic glaze and sepiolite technology, applied in the field of ceramic products, can solve the problems affecting the final product, poor glaze gloss, and many pinholes, so as to improve mechanical strength and thermal stability, reduce thermal expansion coefficient, increase Effect of Glaze Gloss

Inactive Publication Date: 2018-02-23
广西壮族自治区黎塘工业瓷厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The key to the quality of sanitary ceramics lies in the glaze surface. Factors such as glaze composition and firing system will affect the quality of the final product. If any step is not handled properly, it may cause insufficient flatness of the fired product and glaze gloss. Poor density, spots, brown eyes, more pinholes, etc., affect the appearance of ceramic products
In the prior art, the quality of sanitary ceramics is mainly improved through the improvement of the ceramic firing system, and there are relatively few improvements in the composition of ceramic glazes.

Method used

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  • Ceramic glaze
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Examples

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Comparison scheme
Effect test

Embodiment 7

[0014] Embodiment 7 A kind of preparation of ceramic glaze

[0015] Preparation

[0016] Weigh the raw materials according to the raw material formula in Example 1; grind the glaze, crush it, and pass through a 100-200 mesh sieve; add 1-1.5 times the water of the glaze weight to the raw materials; use the brushing process to brush the glaze slurry on Ceramic blanks are sent to the kiln for firing. The firing steps are divided into four stages: the first stage: the heating stage from room temperature to T1, with an average heating rate of 15-20°C / min; the second stage: the heating stage from T1 to T2, with an average heating rate of 10-15°C / minute ; The third stage: T2 heat preservation stage, the heat preservation time is 30-60 minutes; the fourth stage: the cooling stage from T2 to room temperature, natural cooling. The range of T1 is 700-750°C, and the range of T2 is 1000-1200°C.

Embodiment 8

[0017] Embodiment 8 A kind of preparation of ceramic glaze

[0018] The raw material formula of Example 2 is used to prepare ceramic glaze, and the preparation method refers to Example 7.

Embodiment 9

[0019] Embodiment 9 A kind of preparation of ceramic glaze

[0020] The raw material formula of Example 3 was used to prepare ceramic glaze, and the preparation method was referred to Example 7.

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Abstract

The invention discloses a ceramic glaze which is prepared from the following components in parts by weight: 10-15 parts of sepiolite, 13-20 parts of cordierite, 8-12 parts of quartz, 5-10 parts of serpentine, 1-6 parts of SiC, 1-4 parts of Nd2O3, 2-5 parts of CeO2, 1-2 parts of CaZrO3, 1-3 parts of Zr(HPO4)2, 2-3 parts of La2Ti2O7, 1-2 parts of ZrSiO4 and 2-8 parts of MgF2. For a product fired bythe ceramic glaze provided by the invention, a thermal expansion coefficient of the product is lowered, glaze surface pin-holes are reduced, the glossiness of the glaze surface is improved, the mechanical strength and the thermal stability of porcelain are improved, and the ceramic glaze is suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of ceramic products, in particular to a ceramic glaze. Background technique [0002] Most of the sanitary ceramic products produced in China are semi-porcelain and porcelain, including face washers, toilets, urinals, bidets, water tanks, sinks, bathtubs, return pipes, soap boxes, toilet paper boxes, towel racks, and toilets. Tabletops, clothes hooks, sanitary appliances for trains, test tanks, etc. Each category has many forms, such as washbasins, which are desktop, wall-mounted and column-type; , Vortex siphon, etc. The Chinese standard stipulates that the water absorption rate of various semi-porcelain sanitary ceramics is less than or equal to 4.5%; it is resistant to rapid cooling and rapid heating (heated in 100C water for 5 minutes and then put into 15-16C water) without bursting three times. The whiteness of ordinary glaze is greater than or equal to 60 degrees; the whiteness of white glaze is grea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/00C04B41/86
CPCC03C8/00C04B41/009C04B41/5022C04B41/86C04B35/00C04B41/4539C04B41/0072
Inventor 杨茂林
Owner 广西壮族自治区黎塘工业瓷厂
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