A kind of preparation method of sand glaze sanitary ceramics

Abstract

The invention discloses a preparation method of sand glazed sanitary ware, 19.5-29% by mass of potassium feldspar, raw materials of 18.5-19.9% by mass of quartz, 8.5-9.9% by mass of alumina, 6-12% by mass of dolomite, 3.5-4.5% by mass of zinc oxide, 3-4% by mass of kaolin, 18-28% by mass of wollastonite, 10.1-11% by mass of zirconite are filled in a ball mill, wherein ignition lost is 4.13-6.76%, a proper amount of sodium carboxymethyl cellulose is added, water is added for ball milling, the ball milling is stopped until slurry with the particle size smaller than 10 mu m accounts for 59 to 63%, the slurry is sieved with a 100 mesh sieve, the slurry is deironed for 3 to 6h, and the property of glaze slip is adjusted until the concentration of the glaze slip reaches 1.76+ / -0.02g / cm<3> to obtain uniform sand glaze slip, the uniform sand glaze slip is sprayed on the surface of a sanitary ware blank, the sanitary ware blank is fed in a kiln for first firming at 1200-1250 DEG C to obtain a sand glazed sanitary ware product. A prepared glaze layer can form a sparkling effect similar as river sand and sea sand under light, and the prepared glaze layer is safe, non-toxic, good in anti pollution performance, high in mechanical strength, and suitable for application in the field of sanitary ware.

Description

technical field [0001] The invention relates to the field of ceramics, in particular to a method for preparing sand glazed sanitary ceramics. Background technique [0002] In today's society, the continuous development of my country's real estate industry closely revolves around the huge market demand for sanitary ceramics associated with real estate. With the rapid development of China's ceramic production technology and technology, personalized products in the sanitary ware market are prominent, and product development has begun to tend to mid-range and high-end. With the improvement of consumers' personal income and appreciation taste, the demand for mid-to-high-end sanitary ceramic products continues to expand. In addition, with the improvement of infrastructure and the increasing investment in residential housing construction, with the steady growth of GDP, the income of ordinary people is also increasing, and they are beginning to pay attention to bathroom decoration....

AI Technical Summary

Problems solved by technology

The existing flash glaze components and preparation processes are relatively complicated, and most of them contain CeO 2 , PbO, B 2 o 3 、BaCO 3 Toxic raw materials, such as toxic raw materials, are easy to precipitate during use and cause problems in health and safety, and are not suitable for the field of sanitary ceramics; One layer of base glaze and then flash glaze, two layers of glaze fired at one time, the process is more complicated

In addition, due to the high refractive index of the crystals in the flash glaze, it is easy to affect the compactness of the glaze and cause the stain absorption phenomenon on the glaze surface, which does not meet the high requirements of sanitary ceramics for the stain resistance of the glaze surface

Images