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Low-cost zirconium-free white glaze suitable for sanitary ceramics and daily ceramics, and preparation method of low-cost zirconium-free white glaze
The invention discloses a low-cost zirconium-free white glaze suitable for sanitary ceramics and daily ceramics. The low-cost zirconium-free white glaze is prepared from the following raw material components in parts by weight: 20 to 30 parts of quartz, 28 to 38 parts of feldspar, 5 to 10 parts of Huizhou washed white clay, 10 to 20 parts of calcium metasilicate, 5 to 12 parts of medium-temperature frit, 2 to 8 parts of calcined talc, 3 to 11 parts of calcined zinc oxide, 3 to 8 parts of apatite and 0.2 to 0.5 part of an additive sodium carboxymethyl cellulose. According to the invention, theapatite and high-calcium raw materials (calcium metasilicate and medium-temperature frit) contained in the low-cost zirconium-free white glaze can enable the glaze to generate phase splitting when theglaze is molten, and when the glaze is molten, the melt containing potassium and sodium and the melt containing calcium and magnesium are subjected to phase splitting to generate the multi-liquid-phase melt, so that the whitening effect is achieved; and the firing range of the glaze is widened through the zinc oxide and the medium-temperature frit, so that the defect that the firing range is narrow due to the high magnesium content in the glaze is overcome.
本发明公开了一种适用于卫生陶瓷及日用瓷的低成本无锆白釉，按照重量份数计算，包括的原料成分为：石英20‑30份、长石28‑38份、惠州水洗白土5‑10份、偏硅酸钙10‑20份、中温熔块5‑12份、煅烧滑石2‑8份、煅烧氧化锌3‑11份、磷辉石3‑8份和添加剂羧甲基纤维钠0.2‑0.5份。本发明所述的适用于卫生陶瓷及日用瓷的低成本无锆白釉，含有的所述磷辉石、高钙原料（偏硅酸钙和中温熔块）可以在釉熔融时使釉产生分相，釉熔融时含钾和钠的熔体与含钙和镁的熔体分相产生多液相熔体从而达到增白效果，并通过所述氧化锌及中温熔块提高釉的烧成范围，解决釉中高镁含量导致的烧成范围窄的缺陷。
Low-cost zirconium-free white glaze suitable for sanitary ceramics and daily ceramics, and preparation method of low-cost zirconium-free white glaze
The invention discloses a low-cost zirconium-free white glaze suitable for sanitary ceramics and daily ceramics. The low-cost zirconium-free white glaze is prepared from the following raw material components in parts by weight: 20 to 30 parts of quartz, 28 to 38 parts of feldspar, 5 to 10 parts of Huizhou washed white clay, 10 to 20 parts of calcium metasilicate, 5 to 12 parts of medium-temperature frit, 2 to 8 parts of calcined talc, 3 to 11 parts of calcined zinc oxide, 3 to 8 parts of apatite and 0.2 to 0.5 part of an additive sodium carboxymethyl cellulose. According to the invention, theapatite and high-calcium raw materials (calcium metasilicate and medium-temperature frit) contained in the low-cost zirconium-free white glaze can enable the glaze to generate phase splitting when theglaze is molten, and when the glaze is molten, the melt containing potassium and sodium and the melt containing calcium and magnesium are subjected to phase splitting to generate the multi-liquid-phase melt, so that the whitening effect is achieved; and the firing range of the glaze is widened through the zinc oxide and the medium-temperature frit, so that the defect that the firing range is narrow due to the high magnesium content in the glaze is overcome.
本发明公开了一种适用于卫生陶瓷及日用瓷的低成本无锆白釉，按照重量份数计算，包括的原料成分为：石英20‑30份、长石28‑38份、惠州水洗白土5‑10份、偏硅酸钙10‑20份、中温熔块5‑12份、煅烧滑石2‑8份、煅烧氧化锌3‑11份、磷辉石3‑8份和添加剂羧甲基纤维钠0.2‑0.5份。本发明所述的适用于卫生陶瓷及日用瓷的低成本无锆白釉，含有的所述磷辉石、高钙原料（偏硅酸钙和中温熔块）可以在釉熔融时使釉产生分相，釉熔融时含钾和钠的熔体与含钙和镁的熔体分相产生多液相熔体从而达到增白效果，并通过所述氧化锌及中温熔块提高釉的烧成范围，解决釉中高镁含量导致的烧成范围窄的缺陷。
Low-cost zirconium-free white glaze suitable for sanitary ceramics and daily ceramics, and preparation method of low-cost zirconium-free white glaze
适用于卫生陶瓷及日用瓷的低成本无锆白釉及其制备方法
WU JUNLING (author) / PAN HUANHUAN (author) / ZHONG BAOMIN (author) / XU YU (author)
2020-07-24
Patent
Electronic Resource
Chinese
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