High strength ceramic thin plate and preparation method thereof
A high-strength, stoneware technology, applied in the field of building decoration materials, can solve the problems of high water absorption, limited application of building decoration, poor strength, etc.
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Embodiment 1
[0027] 1), mix 8% stone flake soil, 25% potassium sand, 10% sodium stone powder, 15% potassium sodium stone grain, 27% calcined kaolin and 5% lithium feldspar, carry out ball milling, and add 34% of total dry weight at the same time water and 0.2% water reducer sodium tripolyphosphate to improve ball milling efficiency;
[0028] 2), then pass through a 40 mesh sieve and spray powder to obtain powder with a water content of 4%-6%;
[0029] 3) Mix the powder prepared in step 2 with 10% flaky alumina particles (the width of the plate is 0.3-0.5 microns) and press it into shape after aging for 24 hours. The molding size is 1050mm×2060mm×4mm;
[0030] 4) After drying at a temperature of 190°C, the moisture content of the green body is controlled below 0.4%, and then fired once at a high temperature of 1200°C for 60 minutes.
[0031] After testing, the water absorption rate of the finished product prepared in this embodiment is 6.7%, and the breaking strength is 620N.
Embodiment 2
[0039] 1), mix 12% stone flake soil, 20% potassium sand, 14% sodium stone powder, 15% potassium sodium stone grain, 26% calcined kaolin and 3% lithium feldspar, carry out ball milling, and add 34% of total dry weight at the same time water and 0.2% water reducer sodium tripolyphosphate to improve ball milling efficiency;
[0040] 2), then pass through a 40 mesh sieve and spray powder to obtain powder with a water content of 4%-6%;
[0041] 3) Mix the powder obtained in step 2 with 10% flaky alumina particles (the width of the plate is 0.4-0.6 microns) and then press and mold it after aging for 24 hours. The molding specification is 1050mm×2060mm×5mm;
[0042] 4) After drying at a temperature of 185°C, the moisture content of the green body is controlled below 0.4%, and then fired once at a high temperature of 1140°C for 60 minutes.
[0043] After testing, the water absorption rate of the finished product prepared in this embodiment is 6.6%, and the breaking strength is 640N. ...
Embodiment 3
[0045] 1), mix 12% stone flake soil, 22% potassium sand, 15% sodium stone powder, 13% potassium sodium stone grain, 24% calcined kaolin and 5% lithium feldspar, carry out ball milling, and add 34% of total dry weight at the same time water and 0.2% water reducer sodium tripolyphosphate to improve ball milling efficiency;
[0046] 2), then pass through a 40 mesh sieve and spray powder to obtain powder with a water content of 4%-6%;
[0047] 3), the powder obtained in step 2 and 9% flaky alumina particles (the width of the plate is 0.3-0.45 microns) are evenly mixed, and then aged for 24 hours, then pressed into shape, and the molding size is 1050mm×2060mm×4.5mm;
[0048] 4) After drying at a temperature of 190°C, the moisture content of the green body is controlled below 0.4%, and then fired once at a high temperature of 1230°C for 50 minutes.
[0049] After testing, the water absorption rate of the finished product prepared in this embodiment is 6.8%, and the breaking strengt...
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