36results about How to "High degree of sintering" patented technology

The invention relates to strengthened dolomite pottery blank mud and particularly relates to a formula of the strengthened dolomite pottery blank mud, which can form a coupling and self-adapting blank glaze intermediate layer through blank glaze mass transfer interaction, and a preparation process thereof. The blank mud contains the following chemical ingredients in percentage by weight: 60-70% of SiO2, 11-15% of Al2O3, 6-10% of MgO, 2-8% of CaO, 0.5-3.0% of K2O, 0.5-3.0% of Na2O and 3.5-7.0% of loss on ignition, wherein the total ingredient content of MgO and CaO is higher than 12%, and the total ingredient content of Na2O and K2O is lower than 3%. According to strengthened dolomite pottery prepared from the blank glaze coupled and self-adapted strengthened dolomite pottery blank mud disclosed by the invention through firing, when the strengthened dolomite pottery is autoclaved for 30 minutes in an autoclave at the temperature of 170 DEG C while maintaining the pressure of 500KPa, the phenomena of glaze peeling and glaze cracking do not occur, so that the blank glaze binding performance reaches the standards of export products.

A regenerated exhaust gas treatment catalyst (17) can be produced by coarsely grinding a used exhaust gas treatment catalyst (11); separating a coarsely ground material into coarse pieces (12) and a fine powder (13); finely grinding the coarse pieces (12); kneading the fine powder together with other raw materials, molding a kneaded material, and drying and burning a molded material to produce a base material (14); grinding a fresh exhaust gas treatment catalyst (15); forming a slurry solution of the ground product of the fresh exhaust gas treatment catalyst (15); coating the surface of the base material (14) with the slurry solution (16); and drying the base material (14) that has been coated with the slurry solution (16) and burning the base material (14) at a temperature higher than the burning temperature employed in the production of the exhaust gas treatment catalyst (15).

The invention discloses a low-temperature energy-saving manufacture method for once-sintered printed glazed red soil pottery products. The manufacture method comprises the steps of manufacturing green bodies, painting, manufacturing glazing liquid, glazing and sintering and the like. The manufacture method changes the formula of the red soil green bodies, decreases the proportion of red soil in the green bodies, and increases the sintering degree of the green bodies; gas in the green bodies is released timely during sintering. Therefore, the phenomena such as glaze jumping, and foaming and husking are avoided. The pottery products can be formed through once sintering, so that the sintering cost is reduced.

The invention relates to a lightweight bauxite refractory aggregate containing micro-closed pores and a preparation method thereof. The technical solution is: put the lumpy bauxite raw meal in a microwave device, and heat up at a heating rate of 20-100°C / min. When the temperature of the microwave device rises to 350°C, 450°C, 550°C, 650 ℃ and 950 ℃, keep warm for 5 to 30 minutes each, and naturally cool to room temperature to obtain a pre-fired billet. Then the pre-fired billet is transferred into a high-temperature kiln, and the temperature is raised at a heating rate of 3-10°C / min. At ~1650°C, keep warm for 1 to 4 hours each to obtain a lightweight bauxite refractory aggregate with slightly closed pores. The invention has simple process and low cost, and the prepared lightweight bauxite refractory aggregate containing micro-closed pores has the characteristics of low apparent porosity, high closed porosity, small pore diameter and high-temperature medium erosion resistance.

The invention discloses a high-quality smoked brick. The smoked brick is prepared from the following raw materials in percentage by weight: 50 to 60 percent of plastic pug, 10 to 20 percent of clinkerparticles, 10 to 15 percent of sandy raw materials, 5 to 10 percent of flux, 0 to 10 percent of body pigment and 0.5 to 2 percent of lithium feldspar. Correspondingly, the invention further disclosesa preparation method of the high-quality smoked brick. The method comprises the steps of mixing, aging, drying and burning. The smoked brick and the preparation method thereof disclosed by the invention have the advantages of easiness in controlling a burning process and high quality of smoked bricks.

The invention relates to a ceramic load bearing board which comprises the following raw materials in parts by weight: 90-98 parts of yttrium oxide-stabilized zirconium oxide, 1-5 parts of zinc oxide,0.8-3 parts of bismuth oxide, 0.1-0.6 part of antimony oxide, 0.05-0.1 part of nickel oxide and 0.03-0.06 part of manganese oxide. A preparation method for the ceramic bearing board comprises the following steps: mixing materials, adding a binder, baking, pelletizing, carrying out mold-pressing, drying and burning. The ceramic bearing board has the advantages of high strength, high temperature resistance, corrosion resistance, long service life, convenience in use, simple preparation, and the like, and is especially suitable for bearing and baking a zinc oxide piezoresistor.

A method of manufacture of a high intensity tile has the process flow as dispensing a blank ball grinding, process inspection, dispensing the blank, sieving, removing iron, mixing serum, sieving, removing iron, storing serum, spraying, storing material, process inspection, perspiration, shaping, process inspection, drying, process inspection, biscuit firing, process inspection, glazing, process inspection, printing decoration, glost firing, process inspection, edging, grading, packing, warehouse-in, wherein the temperature of the biscuit firing is 1010 to 1200 degrees, and the temperature of the glost firing is 1060 to 1220 degrees, while the pressure of the blank shaping is up to 260MPa, and a burning cycle is more than 60min. The invention can achieve fair process flow, increasing the pressure of the blank shaping of 1%, improving the sintering range of the blank as keeping the sintering temperature with no change, increasing the bearing property of the tile of 40%, decreasing the broken rate of the tile and the cost, improving the production competitive power, extending the using range of the production and having a wide market economic benefit.

The invention discloses a heat-shock-resistant ceramic brick and a preparation method thereof. The heat-shock-resistant ceramic brick comprises the following raw materials in percentage by weight: 15-17% aluminum gangue, 4-6% bluestone, and 18-20% clay , 4-6% dolomite, 10-12% fused quartz, 24-26% sandstone and 17-19% high-temperature sand. The heat-shock-resistant ceramic brick reduces the amount of quartz and bluestone and increases the amount of aluminum gangue to reduce the content of silicon and calcium elements in the formula and increase the content of aluminum and magnesium elements in the formula. The water absorption rate of the body of the brick is reduced, and the sintering degree of the body is improved; the firing range of the thermal shock-resistant ceramic brick is also widened, so that the thermal shock-resistant ceramic brick can be used in a wide-body kiln with a large cross-section temperature difference. maintain a good firing effect. During the firing process of the brick body in a wide-body kiln with a large cross-section temperature difference, the crystal form conversion is reasonable, thereby improving the stability of the finished product against thermal shock, and solving the heat resistance of the brick product caused by the large cross-section temperature difference of the wide-body kiln The problem of reduced seismic performance.