30 results about "Glaze defects" patented technology

The invention discloses a stripping glaze, a stripping-glaze marble ceramic tile without glaze defects and a preparation process of the marble ceramic tile. The stripping glaze comprises the followingraw materials in percentage by mass: 18-22% of potassium feldspar, 4-6% of water washed ball clay, 25-30% of quartz, 25-30% of wollastonite, 5-8% of limestone, 5-8% of zinc oxide and 10-12% of corundum powder. According to the stripping glaze used for preparing the stripping-glaze marble tile provided by the invention, the high-temperature viscosity of the stripping glaze in a high-temperature molten state is improved, and therefore the stripping-glaze marble tile without the glaze defects and of which glaze stripping effects are more vivid and natural is obtained by adopting a glaze sprayingmode.

The invention discloses a black ink-jet ceramic tile and a manufacturing method thereof. The method comprises: carrying out pressing molding on a billet material to obtain a billet, placing the billetinto a drying kiln, and drying; spraying the surface of the dried billet with water, and leaching with a bottom glaze to obtain a brick billet; carrying out first infrared drying on the leached brickbillet, wherein the temperature is controlled at 230+/-20 DEG C; carrying out ink-jet printing decoration on the surface of the leached brick billet; carrying out second infrared drying on the obtained brick billet, wherein the temperature is controlled at 180+/-10 DEG C; and spraying the surface of the dried brick billet with a full-polished glaze, firing in a kiln, polishing, edging, waxing, and laminating to obtain the black ink-jet ceramic tile finished product. According to the invention, through the infrared drying, the drying efficiency of the glaze and the ink is improved, the glaze avoiding defect of the dark ink-jet product is overcome, the labor intensity of workers is reduced, and the quality and the production efficiency of black ink-jet ceramic tiles are remarkably improved.

The invention discloses a ground glaze and a preparation method thereof, as well as a black ink-jet ceramic tile and a manufacturing method thereof. The ground glaze is prepared from the raw materialcompositions in parts by mass: 5 parts of kaolin, 33 parts of potassium feldspar, 28 parts of albite, 10 parts of quartz powder, 10 parts of zirconium silicate, 7 parts of talcum powder and 7 parts ofa 965 frit. The 965 frit is prepared from the chemical compositions in percentage by mass: 49.97% of SiO2, 16.96% of Al2O3, 0.14% of Fe2O3, 0.05% of TiO2, 12.71% of CaO, 1.41% of MgO, 4.03% of K2O, 12.57% of Na2O, 0.37% of ZnO, 0.18% of B2O3, 0.83% of BaO and 0.78% of losses on ignition. By controlling the adding amount of the kaolin, the penetration depth of ink is increased, the drying efficiency of the ink is improved, and the defect of avoiding glazes after ink-jet printing is overcome.

The invention discloses a ceramic brick with a super-flat glaze without glaze defects and a preparation process of the ceramic brick. The ceramic brick comprises a blank body, a bottom glaze layer, a pattern layer, an insulating layer and a transparent glaze layer from bottom to top in sequence, wherein the insulating layer is made of a printing paste with an aqueous tackifying resin in a silk-screen printing manner; and the viscosity of the printing paste is 2000-3000MPa.S. The ceramic brick with the super-flat glaze without glaze defects, which is disclosed by the invention, is high in glaze flatness and clear and fine in glaze pattern, and glaze defects such as glaze pouring orange peel, pinholes and concave glazes are effectively solved.

The invention relates to a porcelain archaized brick with golden glittering effect and a preparation method of the porcelain archaized brick, 880 stamp-pad ink accounting for a large proportion in thegolden glittering glaze can provide a good printing effect, agglomeration of a glittering material is reduced, glaze defects are reduced, the antifouling property is improved, and the glaze melting effect is enhanced; a flashing material A can adjust the flashing effect of the composite glaze; a glittering material B is mainly used for adjusting the high-temperature firing temperature of the composite glaze besides adjusting the glittering effect of the composite glaze, so that complete fusion of the golden glittering glaze and the transparent polished glaze is guaranteed, the smoothness of aglaze surface is kept, and a prepared porcelain archaized brick finished product has antifouling, wear-resisting and durable properties; the porcelain archaized brick has the following characteristics that the printing glittering golden color is combined with the product color and texture, the product has more impact force in level and vision, the pattern level is richer, the texture is more natural, the stereoscopic impression is stronger, and a newly fused glazed product has more transparent three-dimensional stereoscopic impression.

The invention discloses an intelligent online detection and automatic grading method and system for pottery tiles. The method comprises the steps of acquiring image data of a to-be-detected pottery tile, respectively carrying out crack defect detection, unfilled corner defect detection, chromatic aberration defect detection, glaze lack defect detection and bulge defect detection on the image data,obtaining the grade of the to-be-detected pottery tile according to the defect detection results, respectively carrying out first pretreatment or second pretreatment on the acquired image according to the detection requirements, adopting different filtering and defect extraction modes at the same time, carrying out color discrimination during glaze lack detection in particular, and carrying out image pretreatment, image segmentation, feature extraction and corresponding defect grades on to-be-detected pottery tiles with different colors by adopting different algorithms, so that the detectionof various defects can be realized, and the detection and intelligent grading of pottery tiles of various complex shapes and structures can be realized.

The invention discloses a glazing method for reducing glaze shrinkage defects on ceramic surfaces. The glazing method comprises the following steps: 1) mixing magnesia, aluminum oxide, chromium oxide,titanium oxide and ceramic blank raw materials, grinding, and carrying out slip casting to obtain ceramic blanks; 2) coating a slurry obtained by ball-milling molybdenum silicide, tantalum silicide,glass powder, silicon boride, ethanol and carboxymethyl cellulose on the surfaces of the ceramic blanks, drying and then carrying out heat treatment; 3) immersing the ceramic blanks into a nano iron oxide dispersion liquid, taking out the ceramic blanks, and irradiating the ceramic blanksby using an ultraviolet lamp; and 4) spraying a glaze on the surfaces of the ceramic blanks for glaze sintering. According to the invention, conventional ceramic blank raw materials and glaze are improved; the surfaces of the green bodies are treated, so that sintered glaze surfaces are uniform in corrugation,high in glossiness and good in thermal stability, meanwhile, the defects of wavy lines, cracks, pinholes, even deglazing and the like of the glaze surfaces can be well eliminated, the integrity of the glaze surfaces is improved, and the product quality is obviously improved.

The invention belongs to the technical field of ceramic pigments, and particularly relates to a black pigment for ceramic ink-jet printing and a preparation method and application thereof. The black pigment is prepared from the following raw materials in parts by weight: 17-35 parts of a pre-sintered material, 25-36 parts of Co3O4, 30-45 parts of NiO, 0-5 parts of MnO2, 0-4 parts of Al2O3, 0-3 parts of SrCO3, 0-2 parts of Bi2O3 and 0.5-1.5 parts of MoO3, wherein the pre-sintered material is a material formed by sintering a mixed material of Cr2O3 and Fe2O3. Through cooperation of the raw materials, the problems of unstable color development and glaze defects (such as chromatic aberration, color shading, pinholes and white dots) after ink is prepared from the existing black pigment can be solved, the color development performance of black ceramic ink can be improved, and glaze defects can be reduced.

The invention discloses a glaze grinding process, which comprises the following steps: (1), rough grinding, (2), fine repairing, using a fine repairing pen to replace the nib according to the size and shape of the glaze defect; ( 3), sandblasting, (4), cleaning, and after sandblasting, first remove the sand on the surface of the glass with a water gun, then soak the glass in warm water at 70-80°C, take the glass out of the warm water, and wash it with (5), fine grinding, (6), grinding, using a grinder to polish the surface of the glass 2-4 times, after each grinding, the powder on the glass should be wiped clean; (7) Polishing. Mix the polishing powder with 8‑10 times of water, and then use a polishing machine and a polishing powder solvent to polish the colored glaze. After polishing, the glazed work is finished. The invention provides a glaze rough grinding process with simple process, fast processing speed, good grinding effect, safety and reliability, and high product quality.

The invention discloses a building ceramic tile surface decoration glazing data analysis and prediction method and system, and relates to the technical field of the ceramic surface glazing process. The method is characterized in that: glazing process parameter items of a current glaze line are input into a classification model to predict glazing defects, therefore, workers are reminded to adjust the glazing process parameters of the glaze line at any time, defects are reduced the time for searching the glazing process parameters by glazing workers can be shortened, the working efficiency is improved, and a better glazing effect is achieved; glazing process parameter items of the current glaze line, a standard deviation of the left, middle and right weights of a cover glaze, and a standard deviation of the left, middle and right weights of a polishing glaze are input into the classification model to predict the influence of defects generated in the glazing process on the overall quality of ceramic tiles, therefore, workers can correspondingly modify and adjust the related processes of the glaze line. The simulation prediction generated by a computer is used for replacing an actual experiment, so that the test cost is saved, the test period is shortened, and the overall glaze line defect rate is reduced.

The invention belongs to the technical field of ceramics, and discloses a foamed ceramic with high sunlight reflection performance and heat insulation and a preparation method thereof. The foamed ceramic comprises a foam layer, a compact layer and a functional glaze layer from bottom to top, the foam layer comprises the following components: glass powder, potassium-sodium feldspar, borax and a foaming agent; the functional glaze layer comprises the following components: mica and tungsten trioxide. Through combination and component adjustment of the foam layer, the compact layer and the functional glaze layer, the problems that the closed porosity of a conventional foam ceramic formula system is not high and the high-temperature viscosity of a ceramic glaze with sunlight reflection performance is too low are solved, so that the foam ceramic has the advantages of heat preservation and heat insulation of a base material and sunlight reflection of a glaze surface; glaze defects such as pinholes, foaming and the like cannot be generated, and meanwhile, acid and alkali corrosion resistance and antifouling performance are good.

The invention relates to the technical field of manufacturing of sanitary ceramics, in particular to FFC slurry for ceramic production, which is specifically applied to large basin type water tank products. On the basis of the original imported FFC mud raw material, other mud materials are added, and the technical key points are as follows: the raw material dry material comprises the following components: 8%-11% of imported FFC-A material, 6%-12% of imported FFC clinker, 55%-61% of kaolin 1 # material, 10%-15% of kaolin 2 # material and 12%-14% of quartz. The FFC slurry provided by the invention retains the advantages of low buckling deformation rate, low shrinkage rate and good regularity of the original FFC ceramic, reduces the risks of wind frightening and glaze defects, and greatly reduces the production cost.

The invention discloses stripping glaze. The stripping glaze comprises the following raw materials in parts by weight: 8.2-10.5 parts of silicon dioxide, 6.7-8.8 parts of aluminum oxide, 3.3-5.2 partsof zinc oxide, and 2.2-3.4 parts of corundum; and the stripping glaze also comprises the following components in parts by weight: 0.6-0.8 part of calcined talc and 1.2-1.6 parts of water-washed ballclay, wherein 8.2-10.5 parts of the silicon dioxide, 6.7-8.8 parts of the aluminum oxide, 3.3-5.2 parts of the zinc oxide, 2.2-3.4 parts of the corundum, 0.6-0.8 part of the calcined talc and 1.2-1.6parts of the water-washed ball clay are spherical dry particles. According to a method disclosed by the invention, the silicon dioxide and the aluminum oxide are directly introduced, so that impurities in the raw materials of the stripping glaze are reduced; and compared with the prior art, the stripping glaze prepared by data provided by the invention has no glaze defects such as yellow edges, bubbles and pinholes during firing, at the same time, sunken parts are deeper, the stripping glaze has higher quality, so that a qualification rate of the product is improved, a defective rate is reduced, and unnecessary economic loss is avoided.

The invention relates to ceramic glaze spraying, in particular to a robot glaze spraying process for pedestal pan products. The process comprises the following steps: A, teaching a pedestal pan inner glaze spraying program: 1) drawing a line in a pedestal pan product, 2) setting parameters, and 3) conducting teaching along the drawing line in the pedestal pan product; and B, conducting glazing: 1) positioning a green blank semi-finished product at a workpiece position specified by teaching, and 2) confirming an equipment state and various parameters, and conducting glazing by a robot. The glaze quality of a pedestal pan product is improved, the orange glaze defect is avoided, the yield is improved, and the production cost is reduced.

The invention relates to the technical field of production methods of ceramic pigments, in particular to a production method of a rose-bengal ceramic pigment which comprises the following components in parts by mass: 50-60 parts of calcium silicate, 40-50 parts of tin oxide and 1-3 parts of potassium dichromate. According to the present invention, the raw material is the by-product generated during the electric melting zirconia production process, such that the waste material is recycled, the advantages of low cost and easy obtaining are provided, the rose-bengal ceramic pigment is synthesized at the low temperature through the grinding, the aging, the drying screening, the calcining, the grinding, the cleaning and the drying process, and compared with the existing rose-bengal ceramic pigment, the high temperature resistance can be improved; high-temperature glaze defects are reduced, the color is full, and the color development effect and color matching requirements of ceramic products are met.

The invention provides a device for overcoming the glaze avoiding defect of ink-jet ceramic tiles. The device comprises a rack, a combustion mechanism, a combustion-supporting mechanism and a fuel gas conveying mechanism, wherein a conveying assembly used for conveying the ceramic tiles is arranged on the rack; the combustion mechanism is arranged on the rack, and the combustion mechanism is located at the upper end of the conveying assembly; the combustion-supporting mechanism is arranged on the rack, and the combustion-supporting mechanism communicates with the combustion mechanism; and the fuel gas conveying mechanism is arranged on the rack, and the fuel gas conveying mechanism communicates with the combustion mechanism; by arranging the rack, protection and support can be provided for the combustion mechanism, the combustion-supporting mechanism and the fuel gas conveying mechanism; and the conveying assembly is arranged on the rack, to-be-glazed ink-jet ceramic tiles are automatically conveyed to pass through the combustion mechanism, open fire generated by the combustion mechanism is used for baking the glaze surfaces of the ceramic tiles subjected to ink-jet printing, oil-soluble and lipid substances in ceramic ink are completely combusted, and substances capable of causing the glaze avoiding defect in the wet glaze pouring process in ceramic ink are removed, so that the glaze avoiding defect of the ink-jet ceramic tile is overcome.