Heat resistant ceramic material of jolite and mullite

A ceramic material, mullite technology, applied in the field of ceramic materials, can solve the problems of heat-resistant porcelain manufacturers stopping work, unsatisfactory research results, and scarcity of raw materials, etc., to achieve the effect of saving foreign exchange, reducing raw material costs, and improving mechanical strength

Inactive Publication Date: 2006-01-25
江西永华瓷业有限公司
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Problems solved by technology

[0002] At present, the main raw materials used in domestic heat-resistant porcelain are spodumene-based heat-resistant porcelain blanks composed of spodumene imported from Australia, plus high-quality kaolin and quartz. Spodumene is used in heat-resistant porcelain blanks. The amount used in the formula is as high as 45% to 50%. Most of this raw material is used in the production of lithium ingots in China. According to the lithium content in spodumene, its price fluctuates at 2,700 to 3,200 yuan per ton. The 50% increase in price is imported, and the raw materials are scarce and in short supply, which often cause heat-resistant porcelain manufacturers to stop working and wait for materials. not ideal

Method used

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Embodiment 1

[0012] Embodiment 1: According to domestic mineral chemical analysis data, adopt domestic natural raw materials such as magnesite, magnesite clay and bauxite, add a small amount of mineralizer, low-temperature synthesized cordierite, mullite and low-expansion solid The melt is developed by adding an appropriate amount of clay with high plasticity and good viscosity, including: 7 parts of magnesite, 20 parts of magnesite clay (black talc), 25 parts of kaolin, 25 parts of bauxite, Huilai black clay 15 parts, 4 parts of mineralizer and co-solvent alluminite mica are used to reduce the firing temperature of raw materials; the composition requirement of magnesite is: the content of magnesium oxide is more than 45%; the composition requirement of magnesite clay is: the content of magnesium oxide content of more than 20%; the composition requirement of kaolin is: the content of aluminum oxide is more than 36%; the composition requirement of bauxite is: the content of aluminum oxide is...

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Abstract

A refractory ceramic is proportionally prepared from magnesite, magnesium clay, kaolinite, bauxite, black clay and aluminium mica. Its advantages are high strength and thermal stability and low cost.

Description

technical field [0001] The invention belongs to the field of ceramic materials and relates to a cordierite and mullite heat-resistant ceramic material. Background technique [0002] At present, the main raw materials used in domestic heat-resistant porcelain are spodumene-based heat-resistant porcelain blanks composed of spodumene imported from Australia, plus high-quality kaolin and quartz. Spodumene is used in heat-resistant porcelain blanks. The amount used in the formula is as high as 45% to 50%. Most of this raw material is used in the production of lithium ingots in China. According to the lithium content in spodumene, its price fluctuates at 2,700 to 3,200 yuan per ton. The 50% increase in price is imported, and the raw materials are scarce and in short supply, which often cause heat-resistant porcelain manufacturers to stop working and wait for materials. not ideal. Contents of the invention [0003] In order to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/18C04B35/185C04B35/195
Inventor 郑国良邬鹏省余少华过斌齐树根刘俊平余红怡
Owner 江西永华瓷业有限公司
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