Heat-proof purple sand ceramic mud and method for preparing the product

A technology of purple sand ceramics and purple sand mud, which is applied to clay products, other household utensils, applications, etc., can solve the problems of non-cracking in dry burning, high firing temperature, and high energy consumption, and achieve excellent thermal shock resistance, Good thermal stability, good color and fragrance

Inactive Publication Date: 2008-03-05
朱绍波
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The heat-resistant ceramics commonly used at present mainly include the talc-clay-feldspar ternary combination and the spodumene-kaolin-feldspar ternary combination. The disadvantage is that the thermal expansion coefficient of the product is relatively high, which is 4 respectively. ~6×10 -6 /℃ and 3~4×10 -6 /°C, poor the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Embodiment 1: a kind of heat-resistant purple sand pottery mud, adopt ore or compound as raw material, its composition and percentage by weight are: purple sand mud 40%, black clay 20%, white clay 15%, talc 10%, feldspar 5% %, cordierite 10%, the weight percentage content of the main oxides in the raw material is: Si 2 O 65%, Al 2 o 3 21%, MgO 10%, Li 2 O 4%; the preparation method of above-mentioned heat-resistant purple sand pottery mud, comprises the following steps: (1) talc is calcined at 1120~1160 ℃; (2) according to above-mentioned prescription batching, mixing, pulverizing, cross 200 mesh sieves; (3) ) for rough refining; (4) stale treatment for 7 days; (5) vacuum treatment to become ceramic mud; the preparation method of its products includes the following steps: (1) cutting the above ceramic mud into pieces according to the required thickness; 2) rolling forming, stripping, edge cutting; (3) calendering treatment, oiling; (4) firing, the firing temperature...

Example Embodiment

[0022] Embodiment 2: a kind of heat-resistant purple sand pottery mud, adopt ore or compound as raw material, its composition and percentage by weight are: purple sand mud 40%, black clay 20%, white clay 20%, talcum 10%, medical stone 10% , the weight percent content of the main oxides in the raw material is: Si 2 O 67%, Al 2 o 3 20%, MgO 13%; the preparation process steps of heat-resistant purple sand ceramic clay and its products are the same as in Example 1.

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PUM

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Abstract

The present invention provides one kind of heat resisting violet sand earthenware material and its product making process. The heat resisting violet sand earthenware material consists of Si2O 60-73 wt%, Al2O3 15-38 wt%, CaO 2-6 wt%, MgO 6-12 wt%, Fe2O3 0-5 wt%, K2O 0-2 wt%, and Li2O 0-5 wt%; and its raw materials include violet sand 40-60 wt%, black clay 20-30 wt%, white clay 10-25 wt%, talcum 10-18 wt%, and Chinese medicinal stone 5-10 wt%. The heat resisting violet sand earthenware material may be used in making different kinds of heating utensils with thermal expansion coefficient of (1-2)x10<-6>/deg.c, high heat stability and high heat shock resistance. In addition, the utensil made of the violet sand earthenware material may be used in cooking food with good look, good smell, good taste and excellent health function.

Description

technical field [0001] The invention relates to the field of ceramic materials and products thereof, in particular to a preparation method of heat-resistant purple sand ceramic mud and products thereof. Background technique [0002] The heat-resistant ceramics commonly used at present mainly include the talc-clay-feldspar ternary combination and the spodumene-kaolin-feldspar ternary combination. The disadvantage is that the thermal expansion coefficient of the product is relatively high, which is 4 respectively. ~6×10 -6 / ℃ and 3~4×10 -6 / °C, poor thermal shock resistance; high firing temperature, high energy consumption. In recent years, some companies have also been researching medium-temperature heat-resistant ceramics. For example, Chinese patent ZL200510035605.5 (notification number CN1298667C) discloses a medium-temperature heat-resistant ceramic and its preparation method. It is a binary formula composed of lithium petalite-kaolin , although the thermal stability h...

Claims

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Application Information

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IPC IPC(8): C04B35/14C04B33/13C04B35/622
Inventor 朱绍波
Owner 朱绍波
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