147results about How to "Wide firing range" patented technology

The invention relates to ceramic glaze, in particular to raw material matting glaze used for producing high-quality matting bone china products. The raw material matting glaze comprises the following chemical components in percent by weight: 48-60 percent of SiO2, 12.0-22.0 percent of Al2O3, 5.0-12.0 percent of ZnO, 5-12 percent of CaO, 0.5-2.0 percent of MgO, 0.0-3 percent of BaO, 0.0-3.0 percent of ZrO2, 0.0-2.0 percent of TiO2 and 5.0-15.0 percent of K2O and Na2O. The feldspar of the mineral raw material is mainly introduced. The invention has simple, scientific and reasonable constituent and is the raw material glaze; and the glaze does not need to be made into frits, therefore, energy sources are largely saved; the blank glaze has good adaptability, low firing temperature and wide firing range; the fired finished-product ceramic glaze surface is fine, moist, smooth and soft and does not have strong reflect light; and the glaze surface has strong corrosion resistance, high mechanical strength and good thermal shock stability and is easy to clean, therefore, the glaze is especially suitable for tableware dish-washing machines. The invention thoroughly solves the problems of the gloss and the texture of high-grade bone china.

The invention relates to porcelain glaze and in particular relates to high and low-temperature resistant porcelain glaze for enamel. According to the technical scheme, the highnd low-temperature resistant porcelain glaze for enamel is prepared from the following raw materials in parts by weight: 22-38 parts of sodium silicate with the modulus of 2-3.8, 11-19 parts of aluminum oxide, 10-20 parts of manganese dioxide, 6-9 parts of palladium oxide, 6-9 parts of high-boron calcium borate, 23-29 parts of lead sulfate, 2-4 parts of talc, 7-13 parts of calcium carbonate, 8-12 parts of barium sulfate, 12-19 parts of zinc sulfate and 2-9 parts of titanium oxide. The high and low-temperature resistant porcelain glaze has excellent ultralow-temperature resistance and high-temperature resistance.

The invention relates to ceramics and a production technology thereof, in particular to a household strengthen porcelain containing bone substances and the production technology thereof. The strengthen porcelain body comprises petalite, powdered alumina, bone powder, quartz, Longyan braying, Guizhou soil, Zimo saved soil and humic acid sodium; the glaze comprises spodumene, fritted glaze 317, bone powder, kaolin, zirconia, potassium feldspar and aedelforsite; the production technology of the strengthen porcelain comprises the steps of batching, water adding and ball milling, sifting out, iron removing, filter pressing, primary smelting, ageing, refining, molding, drying, glazing and kiln firing. The product of the invention has the advantages of high mechanical strength, good thermal stability, fine and glossy glaze, high whiteness, good transmittance and the like.

The invention discloses a preparation method of a polished porcelain glazed tile with a flashing effect. The preparation method comprises the following steps of S1, mixing high-purity zircon sand andcrystallized frit dry particles to obtain glaze A; S2, taking marble polished glaze or transparent dry granular glaze as glaze B, and mixing the glaze A and the glaze B to obtain mixed glaze; S3, preparing a porcelain tile green body, and drying the porcelain tile green body; S4, applying a cover glaze to the porcelain tile green body dried in the step S3, performing ink-jet printing, and then sequentially applying a protective glaze and the mixed glaze; S5, drying the porcelain tile green body coated with the protective glaze and the mixed glaze in S4 in a drying kiln at 150-200 DEG C, and firing the porcelain tile green body by using a conventional porcelain tile firing method to obtain a semi-finished porcelain tile; and S6, polishing the semi-finished porcelain tile prepared in the S5.The preparation method adopts multiple reflection, dispersion and refraction methods of crystals in the glaze to realize the flashing effect, and meets the market demand.

The iron and zinc augite crystalline glaze is prepared through introducing great amount of ferric oxide and zinc oxide into augite crystalline glaze and through a conventional color glaze sintering process. Chemically, the iron and zinc augite crystalline glaze consists of SiO2 50-60 wt%, AL2O3 5-8 wt%, K2O 0-1 wt%, Na2O 2.5-3.5 wt%, CaO 6-7 wt%, MgO 5 -6 wt%, Fe2O3 5-15 wt% and ZnO 3-10 wt%. The iron and zinc augite crystalline glaze is prepared with the materials including albite 20-35 weight portions, calcite 10-18 weight portions, talcum 15-25 weight portions, iron red 5-15 weight portions, zinc oxide 3-10 weight portions, kaolin 3-5 weight portions and quartz 20- 30 weight portions.

The invention provides a method for manufacturing ceramic of a multi-layer structure. The method includes the following steps that a common ceramic brick material is used for manufacturing surface blank, a foamed ceramic bottom blank material is used for preparing foamed ceramic bottom blank, the surface blank and the foamed ceramic bottom blank are pressed into multiple layers in a spaced mode, the uppermost layer of a tile serves as the surface blank, and after the surface blank is dried, a semi-finished product is obtained; the semi-finished product is colored and subjected to one-time cofiring to form a ceramic tile of the multi-layer structure where the foamed ceramic bottom blank layer and the non-porous surface blank layer coexist. The ceramic tile of the multi-layer structure has the advantages that the ceramic tile is light and convenient to attach, the surface blank is compact, and photochromism is high.

A non-lead fritted glaze for ceramics is prepared from quartz, feldspar, borax, boric acid, barium carbonate, stalactite, zinc oxide, strontium carbonate, lithium carbonate, prepared talc, and aluminium hydroxide through proportionally mixing, fusing at 1300-1350 deg.C, quenching in water, and grinding. Its advantages are wide range of calcine temp, low calcine temp. high surface finish quality, no lead, and high antiwear performance.

The invention discloses double-layered crystal glaze and a preparation method thereof. The double-layered crystal glaze comprises bottom glaze and surface glaze, wherein the bottom glaze is prepared from the following components in parts by weight: 30-35 parts of feldspar, 21-23 parts of quartz, 7-12 parts of calcite, 4-5 parts of Guizhou soil, 3-5 parts of zinc oxide, 7.5-10 parts of zirconium silicate and 7-11 parts of strontium carbonate; the surface glaze is prepared from the following components in parts by weight: 22-25 parts of feldspar, 24-25 parts of borax, 5-10 parts of quartz, 12-15 parts of calcite, 4-5 parts of Guizhou soil, 23-25 parts of zinc oxide, 9-10 parts of zirconium silicate, 5-8 parts of dolomite and 0.5 part of chromophore. According to the invention, the sintering time of the crystal glaze can be shortened, so that the cost is lowered. The double-layered crystal glaze can be produced on a large scale, and the production quantity of the double-layered crystal glaze is improved.

The invention discloses a metallic glaze. The metallic glaze comprises the following components: 5-25 parts by weight of feldspar, 10-30 parts by weight of albite, 25-40 parts by weight of quartz, 1-15 parts by weight of calcite, 5-20 parts by weight of kaolin, 15-40 parts by weight of frit powder, 0.1-5 parts by weight of titanium oxide, 0.5-5 parts by weight of vanadium pentoxide, 5-20 parts by weight of manganese dioxide, 0.1-5 parts by weight of copper oxide, 0.1-3 parts by weight of cobalt oxide and 0.1-5 parts by weight of nickel oxide, wherein the frit powder comprises potassium chloride, sodium chloride, silica, alumina, magnesia, boric acid and spodumene. The invention also discloses a preparation method for the metallic glaze. With the formula and preparation method for the metallic glaze, the prepared metallic glaze has excellent metallic luster and high glaze hardness and totally appears to be golden yellow.

The invention discloses mutton fat matt white glaze for a ceramic decoration and a preparation method of the white glaze. The white glaze is prepared from, by mass percentage, 15-25% of feldspar powder, 10-17% of calcium carbonate, 5-7% of dolomite, 6-12% of talc, 3-8% of barium carbonate, 15-20% of zirconium silicate, 10-15% of zirconium white frit, 0-6% of zinc oxide, 5-7% of aluminum oxide and 0-12% of kaolin. The components are weighed according to the formula, fully mixed and added into a grinding tank, water with the weight 45-50% that of dry powder is added for grinding for 10-15 h, then glaze slurry obtained after ball milling is subjected to iron removal and screening, and the concentration is adjusted till the true specific gravity is 50-54 degrees. A ceramic product is coated with the white glaze in a spraying mode or a soaking mode or other decoration modes. After drying, the ceramic product enters a kiln to be oxidized and fired for 8-11 h at the temperature of 1200-1235 DEG C, and the ceramic product is taken out of the kiln after being naturally cooled. The prepared mutton fat matt white glaze has the advantages of being high in processing property, high in operability and not prone to cracking.

The invention provides a preparation method for three-dimensional cover glaze. The preparation method comprises the following steps: I, selecting at least one monochrome from an image to prepare a silk screen plate; II, applying cover glaze on a semi-finished blank in a silk screen printing pattern, wherein the cover glaze is powder; III, baking in a kiln to obtain ceramic with the three-dimensional cover glaze. In the preparation method for the three-dimensional cover glaze, an image pre-treating scheme is adopted, and the advantage of bright color of silk screen printing is utilized, so that a ceramic product with a bright image is obtained.

The invention discloses a treating process for preparing ceramic materials by pearl shells and wasted pearl bodies, and simultaneously further discloses a formula and a sintering technology for preparing daily-used ceramic and glaze by powder materials prepared by the treating process. The formula of shell porcelain body is as follows: 17-30 percent of mineral powder prepared by treatment, 10-20 percent of porcelain clay, 45-58 percent of kaoline, 0-5 percent of quartz, and 5-15 percent of feldspar; the formula of glaze of shell porcelain body is as follows: 1.36-4 percent of mineral powder prepared by treatment, 0,8-4 percent of porcelain clay, 3.6-11.6 percent of kaoline, 0-1 percent of quartz, 0.4-3 percent of feldspar, and 80-92 percent of high-boron high-zinc lead-free transparent frit; and the sintering technology of the shell porcelain is as follows: 1170-1220 DEG C of high-temperature plain temperature, and 1050-1100 DEG C of low-temperature glaze firing temperature. The invention has the advantages of energy conservation and consumption reduction, safety and environmental protection, and economy and practicalness.

A diatomaceous earth breathing brick with a high humidifying harm-reduction function and a production method thereof are disclosed, through improvement of a formula, slurry with excellent performances can be prepared, a molding material is prepared by a spray granulation process, and the molding problem is overcome. The formula comprises, (wt%), 80%-90% of diatomaceous earth; 4%-14% of clay; 0.5%-1.5% of talc; 0.5%-1% of a ceramic body enhancer; 1%-2% of a ceramic sintering aid agent; 0.5%-1% of a superplasticizer; 0.5%-1.5% of nano titanium dioxide and 0.5%-1.5% of tourmaline powder. The production method is as follows: the raw materials are prepared into the slurry by adding of water, and by spray granulation, material distribution, molding and firing, the diatomaceous earth breathing brick with the high humidifying harm-reduction function is obtained. Compared with the prior art, the formula and the molding process are improved, the use amount of the diatomaceous earth is significantly increased, body cracking, deformation, stratification and other phenomena caused by inappropriate moisture content of raw materials, uneven material distribution and excessive local stress of a green body can be avoided, and the diatomaceous earth breathing brick has a higher humidifying harm-reduction function.

The invention relates to a household porcelain and a method for manufacturing the same, in particular to a bone jade porcelain and a method for manufacturing same. The bone jade porcelain body comprises quartz, petalite, Australian alumina, Guizhou clay, Longyan kaolin braying and Huidong kaolin braying. The method for manufacturing the bone jade porcelain comprises the following steps of: calcining the quartz, grinding with water, sieving with levigation and preparing into quartz grain, dosing according to formula, ball milling, sieving, removing iron, dehydrating in a way of filter pressing, primary smelting, aging, refining, shaping, drying, glazing and finally baking with a kiln. The invention has the tactile sensation of a bone ash porcelain, lower manufacturing cost compared with the bone ash porcelain, higher thermal stability, wider baking ranging and convenient control.

The invention discloses petuntse used for preparing an exquisite ceramic cooker and a method for preparing the exquisite ceramic cooker from the petuntse. The petuntse comprises the following components, 25 to 27 parts by weight of halloysite, 14 to 16 parts by weight of sericite, 14 to 16 parts by weight of hypersthene, 8 to 10 parts by weight of sodium tripolyphosphate, 8 to 10 parts by weight of calcined vermiculite powder, 4 to 5 parts of howlite and 2 to 3 parts by weight of meerschaum; the calcined vermiculite powder is manufactured in the way that vermiculite is calcined for 1 to 1.2 hours at 1200 DEG C to 1220 DEG C, and is smashed and sieved by a 20-mesh sieve. The petuntse provided by the invention has the advantages that the firing temperature is lowered greatly, the firing range is broadened, the effects of environment friendliness and energy conservation are achieved, and the manufacturing cost is reduced; the manufactured exquisite ceramic cooker can not crack under the condition of heat exchange at 600 DEG C to 20 DEG C, and the application range of the product is wide.

The invention relates to daily bone china, and in particular relates to durable bone china and a preparation method of the durable bone china. The green body of the durable bone china is prepared from the following raw materials in percentage by mass: 38.0-44.0% of animal ash, 3.5-7.5% of quartz sand, 7.0-12.0% of potassium feldspar, 4.0-8.0% of Suzhou clay, 8.0-12.0% of Longyan clay, 2.0-6.0% of Yi County clay, 2.0-7.0% of GF88 clay, 3.0-8.0% of K18 clay, 0.5-4.0% of alpha-aluminium oxide, 5.0-9.0% of limestone, and 0.5-8.0% of waste porcelain powder. The preparation method of the durable bone china comprises the following steps of: preparing a mixture from the above raw materials according to percentage by mass, ball-milling the mixture in a ball mill for 14.0-20.0 hours according to the mass ratio of the raw material to balls to water of 1:2.5:1, sieving the slurry using a 100-mesh sieve, removing ion, aging the resulting product for 3-7 days, squeezing the mud, adding certain water and dispersant into a mud cake for dispergation, carrying out slip casting, drying and trimming, firing the resulting product at 1230-1290 DEG C for 1.5-3.0 hours, and cooling the fired product to obtain the biscuit firing billet of the bone china. By adopting the durable bone china provided by the invention, the technical problems of the mutual interaction of the whiteness, the jade sense and the transparency, and the mutual interaction of the thickness, the strength, the hardness, and the thermal stability are solved.