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

[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 of the product is 1130-1180°C, and the firing time is 12-13 hours, and the rest is according to Normal process operation.

[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.