A kind of high-grade porcelain seed crystal magnesia ceramic and preparation method thereof
A technology of crystal and ceramics, applied in the field of high-grade porcelain crystal magnesia jade ceramics and its preparation, can solve the problems of poor thermal shock resistance, easy cracking of products, high production cost, and achieve the improvement of the overall use performance and the improvement of the permeability of the porcelain. properties, and the effect of preventing product cracking
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Embodiment 1
[0027] Weigh the following raw materials in proportion: 30% of kaolin, 11% of potassium feldspar, 6% of wollastonite, 42% of calcined vein quartz, 11% of magnesia clay, and the iron content of kaolin raw materials is required to be less than 0.2%, potassium feldspar, The iron content of wollastonite, calcined vein quartz and magnesia clay is required to be less than 0.1%, and the iron content of the overall green body is less than 0.1%. Put the above raw materials into a ball mill equipped with grinding bodies, add water to control the specific gravity of the mud at 1.35-1.45g / 100ml, and the fineness of the ball-milled mud should be above 240 mesh, that is, the particle diameter is less than 0.061mm. If the amount is 0.2-0.3%, it can be pulped. After pulping→sieving to remove iron→pressing→rough smelting→stale→three times refining into mud→pressing→drying→finishing→applying ordinary transparent glaze to form a fine blank ; Put the compact into a kiln for firing in a weak reduc...
Embodiment 2
[0029] Weigh the following raw materials in proportion: 33% kaolin, 13% potassium feldspar, 4% wollastonite, 44% calcined vein quartz, 6% magnesia clay, the iron content of kaolin raw materials is required to be less than 0.2%, potassium feldspar , wollastonite, calcined vein quartz, and magnesia clay require less than 0.1% iron content, and the iron content of the overall green body is less than 0.1%. Put the above raw materials into a ball mill equipped with grinding bodies, add water to control the specific gravity of the mud at 1.35-1.45g / 100ml, and the fineness of the ball-milled mud should be above 240 mesh, that is, the particle diameter is less than 0.061mm. If the amount is 0.2-0.3%, it can be pulped. After pulping→sieving to remove iron→pressing→rough smelting→stale→three times refining into mud→pressing→drying→finishing→applying ordinary transparent glaze to form a fine blank ; put the compact into a kiln for firing in a weak reducing atmosphere at a firing temperat...
Embodiment 3
[0031] The following raw materials are weighed in proportion: 30% of kaolin, 13% of potassium feldspar, 6% of wollastonite, 43% of calcined vein quartz, 8% of magnesia clay, the iron content of kaolin raw materials is required to be less than 0.2%, potassium feldspar, The iron content of wollastonite, calcined vein quartz and magnesia clay is required to be less than 0.1%, and the iron content of the overall green body is less than 0.1%. Put the above raw materials into a ball mill equipped with grinding bodies, add water to control the specific gravity of the mud at 1.35-1.45g / 100ml, and the fineness of the ball-milled mud should be above 240 mesh, that is, the particle diameter is less than 0.061mm. If the amount is 0.2-0.3%, it can be pulped. After pulping→sieving to remove iron→pressing→rough smelting→stale→three times refining into mud→pressing→drying→finishing→applying ordinary transparent glaze to form a fine blank ; put the compact into a kiln for firing in a weak redu...
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