Highly heatproof and shockproof ceramic and its production method

A thermal shock and ceramic technology, applied in the field of lithium high thermal shock resistant ceramic products and their manufacturing, to achieve the effects of solving stability, high qualification rate and convenient source

Inactive Publication Date: 2008-12-17
杭州民生陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is the deficiencies in the prior art. Even if the ceramic products have high thermal shock resistance, the glazed surface of the ceramic products can achieve high anti-pollution performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 (products for microwave ovens, involving raw materials in parts by weight, the same below):

[0026] 1 # Green body formula: burnt spodumene powder 35, 1 # Kaolin 20, 2 # Kaolin 27, 4 # Kaolin 8, Quartz 10, plus TiO 2 0.5.

[0027] Low-temperature glaze water formula: burnt spodumene powder 50, Longquan porcelain stone powder 15, burnt zinc oxide 10, quartz 10, burnt talc powder 10, barium carbonate 5. Add 2 parts of SiC matrix material (black sand, small particles with a particle size of 100-140 mesh sieve). Note: In addition, it is added to the glaze water after grinding. In addition, if colored glaze is required, 5-12 parts should be added to the pigment ingredients. The following glaze water formula is the same.

[0028] The above blank body formula is made into mud section with traditional ceramic raw material processing technology, and the moisture content is between 21% and 22%. The semi-finished products of microwave oven turntables are made ...

Embodiment 2

[0030] Embodiment two (super heat-resistant ceramic liner 1);

[0031] 2 # Green body formula: burned spodumene powder 45, 0 # Kaolin 10, 4 # Kaolin 15, 5 # Kaolin 21, 6 # Kaolin 6, Quartz 3, plus ZrO 2 0.8.

[0032] Low-temperature glaze water formula: burnt spodumene powder 60, Longquan porcelain stone powder 11, burnt zinc oxide 5, quartz 5, burnt talc powder 7, barium carbonate 12. Add 2 parts of SiC matrix material (black sand, small particles with a particle size of 100-140 mesh sieve).

[0033] The above green body formula is also made into mud section by traditional ceramic raw material processing technology, and then 0.5-0.75% sodium humate and 0.2-0.3% sodium humate and 0.2-0.3% foaming alkali (moderate modulus) are added in the form of dry material ratio to form mud. The moisture content is within 45±1%, and then various special-shaped products are made by grouting molding. After drying, grinding, washing, high-temperature bisque firing (without glaze), kiln ...

Embodiment 3

[0035] Embodiment three (super heat-resistant ceramic liner 2):

[0036] 3 # Green body formula: burnt spodumene powder 50, 1 # Kaolin 23, 5 # Kaolin 15, 7 # Kaolin 10, Quartz 2, plus TiO 2 1. ZrO2 0.5.

[0037] Low-temperature glaze water formula: burnt spodumene powder 65, Longquan porcelain stone powder 12, burnt zinc oxide 3, quartz 3, burnt talc powder 6, barium carbonate 11. Add 2 parts of SiC matrix material (black sand, small particles with a particle size of 100-140 mesh sieve).

[0038] The above green body formula is made into a mud section according to the traditional ceramic raw material processing technology, the moisture content is between 21.5% and 22.5%, and semi-finished products of various shapes are made by rolling forming. The finished products made by various processes in Example 1 can reach The product performance of Example 2, and the flexural strength can be obviously improved to 700~750kg / cm 3 .

[0039] Recipe 4 (super heat-resistant ceramic ...

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PUM

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Abstract

The invention relates to a lithium heat shock resisting ceramic product and its preparing process, wherein the blank of the ceramic product comprises the following constituents (by weight ratio): burned triphane powder 35-55, high grade porcelain clay 40-55, quartz 0-10, the low-temperature glaze comprises burned triphane powder 50-75, porcelain stone powder 8-15, burned zinc oxide 0-10, quartz 0-10, burned talcum powder 5-10, barium carbonate 5-12, and the high temperature glaze comprises burned triphane powder 50-70, 1# Suzhou clay 5-10, burned zinc oxide 0-10, quartz 5-15, burned talcum powder 0-8, and barium carbonate 7-15.

Description

technical field [0001] The invention relates to a ceramic product and a manufacturing method thereof, in particular to a lithium-based high thermal shock-resistant ceramic product and a manufacturing method thereof. Background technique [0002] Lithium-based low-expansion ceramic products and their manufacturing methods are known in the art. At present, the heat-resistant pot products produced in some domestic ceramic production areas such as Jiangxi and Fujian mostly use this technology, but their performance stability is poor, especially the anti-pollution performance is poor. Most of the products are unavoidable during use. The ground will have the problem that the food is burnt and the stain is difficult to remove, which makes the appearance very ugly, and it is easy to breed bacteria. High thermal shock resistance ceramics are easy to be polluted. This is a common problem. Solving this problem is also a major problem in the ceramic industry. , affecting thermal shock-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/16C03C8/22C04B35/622
Inventor 金尧根王建祥
Owner 杭州民生陶瓷有限公司
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