CN-116874187-B - Jun glaze suitable for sanitary porcelain technology and preparation method thereof

Abstract

The application relates to the technical field of sanitary ceramics, in particular to a jun glaze suitable for sanitary porcelain technology and a preparation method thereof. The application relates to a jun glaze suitable for a sanitary porcelain process, which comprises a base glaze and a cover glaze, wherein the base glaze comprises the following raw materials of potassium feldspar, kaolin, quartz powder, calcined talcum, calcite, zinc oxide, spodumene, frit, ferric oxide and manganese oxide, the cover glaze comprises the following raw materials of potassium feldspar, albite, quartz powder, kaolin, calcite, zinc oxide, wollastonite and zirconium silicate, and most of the raw materials of the base glaze and the cover glaze are the same in component by reasonably matching with each raw material, and the raw materials of the base glaze and the cover glaze are melted, diffused and migrated at high temperature according to a similar compatibility principle, so that double layers of different colors are formed, and meanwhile, part of the raw materials are melted together to form beautiful stripes, and the stripes are not overlapped, are vivid, natural, have strong stereoscopic impression and are brilliant.

Inventors

• FENG HONGQIANG
• LI XIAOMAN

Assignees

• 厦门佳浴智能卫浴有限公司

Dates

Publication Date

20260508

Application Date

20230725

Claims (2)

1. 1. A preparation method of a sanitary ceramic jun glaze product is characterized in that the sanitary ceramic jun glaze product is prepared by using jun glaze, wherein the jun glaze comprises ground glaze and overglaze, the jun glaze utilizes the similar compatibility of the ground glaze and overglaze to prepare double-color glaze, and stripes are formed by melting; The ground glaze comprises, by mass, 12-18 parts of potassium feldspar, 5-9 parts of kaolin, 25-32 parts of quartz powder, 1-3 parts of calcined talcum, 13-17 parts of calcite, 1-3 parts of zinc oxide, 4-8 parts of spodumene, 13-18 parts of frit, 3-7 parts of ferric oxide and 2-4 parts of manganese oxide; The overglaze comprises the following raw materials, by mass, 24-30 parts of potassium feldspar, 3-8 parts of albite, 23-28 parts of quartz powder, 8-12 parts of kaolin, 13-17 parts of calcite, 2-4 parts of zinc oxide, 3-5 parts of wollastonite and 6-10 parts of zirconium silicate; the preparation method of the sanitary ceramic jun glaze product comprises the following steps: S1, preparing ground glaze slurry, namely putting potassium feldspar, kaolin, quartz powder, calcined talcum, calcite, zinc oxide, spodumene, clinker, ferric oxide and manganese oxide into a ball mill according to parts by weight, adding a proper amount of water to wet grind until the particle size is less than 325 meshes, discharging slurry, grinding, and sieving and removing iron to prepare slurry for later use, wherein the performance parameters of the slurry are that the specific gravity is 1.745kg/L-1.755kg/L, the viscosity is 120-140 seconds/100 mL, the sieving is a 325-mesh sieve, and the sieving residue is 0.1-0.3%; S2, preparing overglaze slurry, namely loading potassium feldspar, albite, quartz powder, kaolin, calcite, zinc oxide, wollastonite and zirconium silicate into a ball mill according to parts by weight, adding a proper amount of water to wet mill until the particle size is less than 325 meshes, discharging slurry, grinding, and sieving to remove iron to prepare slurry for later use, wherein the performance parameters of the slurry are that the specific gravity is 1.650kg/L-1.700kg/L, the viscosity is 80-100 seconds/100 mL, the sieving is a 325-mesh sieve, and the sieving residue is 0.1-0.2%; S3, spraying a layer of base coat and a layer of surface coat on the sanitary ceramic fine blank, wherein the spraying is performed by adopting automatic spraying equipment, the pressure spraying of the base coat is performed under the pressure of 0.65-0.75MPa, the pressure of the surface coat is performed under the pressure of 0.55-0.65MPa, the thickness of the base coat is 0.6-0.8mm, and the thickness of the surface coat is 0.2-0.3 mm; S4, sintering, namely loading the sanitary ceramic fine blank sprayed with the ground coat and the overglaze into a kiln for sintering, wherein the process is that the temperature is raised from room temperature to 1220-1240 ℃ at the temperature rising speed of 110-130 ℃ per hour, the temperature is kept for 2-3 hours, and the sanitary ceramic jun glaze product is obtained after cooling to the room temperature.
2. 2. The preparation method of the sanitary ceramic jun glaze product according to claim 1 is characterized in that the jun glaze comprises a base glaze and an overglaze, wherein the base glaze comprises the following raw materials, by mass, 15 parts of potassium feldspar, 7 parts of kaolin, 28 parts of quartz powder, 2 parts of calcined talcum, 15 parts of calcite, 2 parts of zinc oxide, 6 parts of spodumene, 15 parts of frit, 5 parts of ferric oxide and 3 parts of manganese oxide; the overglaze comprises the following raw materials, by mass, 26 parts of potassium feldspar, 5 parts of albite, 25 parts of quartz powder, 10 parts of kaolin, 15 parts of calcite, 3 parts of zinc oxide, 4 parts of wollastonite and 8 parts of zirconium silicate.

Description

Jun glaze suitable for sanitary porcelain technology and preparation method thereof Technical Field The application relates to the technical field of sanitary ceramics, in particular to a jun glaze suitable for sanitary porcelain technology and a preparation method thereof. Background The sanitary ceramic is a glazed ceramic product for places such as toilets, kitchens, laboratories and the like, is also called sanitary ware, can select different materials and performances according to different use environments when actually purchased, and with the continuous improvement and development of living standard, the productivity and the yield of the sanitary ceramic industry in China are continuously increased, the domestic market demand is larger, and meanwhile, the performance requirement on the sanitary ceramic is also higher and higher. For a long time, sanitary ceramics are almost zirconium white opaque glaze with a very monotonous color tone. In recent years, other colors such as partial matte black, matte gray and the like appear, and the existing process cannot well control the patterns to be presented. The traditional ceramic is usually colored by adopting a single-layer glaze or a single-layer reactive glaze, and the product has single color and large chromatic aberration, so that the appearance of the ceramic product is not beautiful. Disclosure of Invention The application aims at overcoming the defects of the prior art, and provides a jun glaze suitable for a sanitary porcelain process and a preparation method thereof. In a first aspect, the application provides a jun glaze suitable for sanitary porcelain technology and a preparation method thereof, which adopts the following technical scheme: The jun glaze comprises 12-18 parts of potassium feldspar, 5-9 parts of kaolin, 25-32 parts of quartz powder, 1-3 parts of calcined talcum, 13-17 parts of calcite, 1-3 parts of zinc oxide, 4-8 parts of spodumene, 13-18 parts of frit, 3-7 parts of ferric oxide and 2-4 parts of manganese oxide; the overglaze comprises the following raw materials, by mass, 24-30 parts of potassium feldspar, 3-8 parts of albite, 23-28 parts of quartz powder, 8-12 parts of kaolin, 13-17 parts of calcite, 2-4 parts of zinc oxide, 3-5 parts of wollastonite and 6-10 parts of zirconium silicate; The jun glaze utilizes the similar compatibility of the ground glaze and the overglaze to prepare double-color glaze, and stripes are formed through high-temperature melting. Preferably, the jun glaze comprises a ground glaze and an overglaze, wherein the ground glaze comprises the following raw materials, by mass, 15 parts of potassium feldspar, 7 parts of kaolin, 28 parts of quartz powder, 2 parts of calcined talcum, 15 parts of calcite, 2 parts of zinc oxide, 6 parts of spodumene, 15 parts of frit, 5 parts of ferric oxide and 3 parts of manganese oxide; The overglaze comprises the following raw materials, by mass, 26 parts of potassium feldspar, 5 parts of albite, 25 parts of quartz powder, 10 parts of kaolin, 15 parts of calcite, 3 parts of zinc oxide, 4 parts of wollastonite and 8 parts of zirconium silicate; The jun glaze utilizes the similar compatibility of the ground glaze and the overglaze to prepare double-color glaze, and stripes are formed through high-temperature melting. By adopting the technical scheme, the calcined talcum can be used for improving the condensation property and the adhesive force of the glaze, has a filling effect, and can fill particles and capillary holes on the surface. The potassium feldspar contains potassium and sodium, has the function of a cosolvent, and can shorten the firing time, increase the transmittance of the glaze layer and improve the binding force between the green body and the glaze layer. Calcite mainly plays a role of a cosolvent, can increase the hardness, wear resistance and corrosion resistance of glaze, reduce the melting temperature of the glaze, increase the glossiness and transparency of glaze color, and prevent and treat cracks and accumulation of glaze. The quartz powder can increase the melting temperature and viscosity of the glaze, increase the melting temperature range, reduce the fluidity of the glaze, reduce the expansion coefficient of the glaze, improve the mechanical strength, hardness, wear resistance and chemical corrosion resistance of the glaze, and the quartz can be melted by more fusible substances CaO and Na2O, K & lt 2 & gt O, mgO to form transparent quartz glass, so that the glaze surface is bright, and the glossiness is improved. Zinc oxide is an inorganic oxide, which can raise the sintering temperature of the glaze, reduce the expansion coefficient of the glaze and increase the hardness and toughness of ceramic products. Spodumene can increase the fluidity, fusion and transparency of the glaze at high temperature, so that the glaze has better erosion resistance. The frit mainly plays a role in catalyzing and increasing the cooling speed of the glaze, can effecti