Ceramic glaze and porcelain
A technology for ceramic glaze and raw materials, applied in the field of ceramics, can solve the problems of short service life of porcelain, not smooth glaze surface, easy cracking of the glaze surface, etc., and achieve the effect of natural and beautiful surface texture, smooth and flat glaze surface, and not easy to crack.
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Embodiment 1
[0014] The raw material ratio of ceramic glaze is as follows by mass: glass powder 43%, calcined zinc oxide 16%, quartz 11%, titanium dioxide 8%, talcum powder 3.7%, 8# frit 0.28%, copper oxide 3%, oxide 1% iron, 4% manganese oxide, 0.02% methyl cellulose, 4% potassium feldspar, 6% glaze mud, and the glaze mud is black mud.
[0015] The process steps of adopting the present embodiment to make porcelain are:
[0016] (1) Get china clay to make mud base and dry the mud base;
[0017] (2) The mass ratio of water and ceramic glaze is 0.57-0.65:1, water is mixed with ceramic glaze, and ground to obtain glaze slurry;
[0018] (3) filter the glaze slurry, and sieve out the particles therein;
[0019] (4) Spraying the filtered glaze slurry onto the dried mud body to obtain the porcelain body;
[0020] (5) Put the porcelain body into the kiln for stage-by-stage firing. The first stage: Leave a gap of 3 to 5 cm on the kiln cover, open the chimney on the top of the kiln, and use oxida...
Embodiment 2
[0026] The raw material ratio of ceramic glaze is as follows by mass: glass powder 32%, calcined zinc oxide 26%, quartz 10%, titanium dioxide 14%, talcum powder 4%, 8# frit 0.37%, copper oxide 2%, oxide Iron 0.6%, manganese oxide 2.5%, methyl cellulose 0.03%, potassium feldspar 3%, glaze mud 5.5%, described glaze mud is the mixture of black mud and bentonite, and the mass ratio of black mud and bentonite is 1:1. The process steps of making porcelain in this embodiment are the same as in Embodiment 1.
[0027] After firing the porcelain in this embodiment, the Mohs hardness of the glaze is 5, and the modulus of rupture reaches 85.3 MPa. When the glaze is observed under a microscope with a power of 200 times, the crystal pattern of the glaze is intact and there are almost no microcracks.
Embodiment 3
[0029] The raw material ratio of ceramic glaze is as follows by mass: glass powder 31%, calcined zinc oxide 21%, quartz 18%, titanium dioxide 10%, talcum powder 3%, 8# frit 0.2%, copper oxide 2.4%, oxide Iron 0.7%, manganese oxide 3%, methyl cellulose 0.03%, potassium feldspar 3.3%, glaze mud 5%, bovine bone ash 0.8%, lion mountain ash 0.25%, vanadium pentoxide 0.05%, barium carbonate 0.02% , zirconium silicate 0.05%, star vermilion 0.7%, straw ash 0.5%, and the described glaze mud is black mud. The process steps of making porcelain in this embodiment are the same as in Embodiment 1.
[0030] After the porcelain in this embodiment is fired and molded, the glazed surface is observed under a microscope at 200 times, and the crystal flower on the glazed surface is intact, with almost no microcracks; the Mohs hardness of the glazed surface reaches 7, and the modulus of rupture is 71.9MPa, and the implementation Compared with Example 1 and Example 2, the hardness is significantly ...
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Abstract
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