62 results about "Phlogopite" patented technology

This invention relates to synthetically derived zinc phlogopite platelets, of superior aspect ratio, effect pigments comprising such synthetically derived platelets and methods of forming said platelets. More specifically the disclosure describes an improved hydrothermal synthesis of zinc phlogopite suitable as a platelets for interference pigments, barrier and flame retardant applications.

The invention discloses a riser heating and insulating agent, which comprises the following components in percentage by weight: 5 to 35 percent of Al, 10 to 25 percent of AlN, 3 to 20 percent of low-carbon graphite, 5 to 25 percent of magnesia-alumina spinel, 5 to 15 percent of quartz, 10 to 30 percent of ferric oxide powder, 5 to 20 percent of corundum, 5 to 10 percent of organosilicon phlogopite, and 1 to 10 percent of MgO; and the riser heating and insulating agent is prepared by the following processes: crushing, pulverizing, mixing, pelletizing, drying, and the like. The riser heating and insulating agent has double effects of heating and insulating, and has good insulating effect. Because the riser heating and insulating agent has a granular appearance, dust and smoke are not generated in the using process, and the environment is not polluted. Due to the adoption of the low-carbon graphite, castings do not have carburizing phenomenon, and the molten steel is not polluted. The riser heating and insulating agent is particularly applied to open risers of low carbon steel large-scale steel castings and stainless steel castings with the weight of over 80 tons.

Disclosed is a kind of fluorine bronze mica nacreous pigments produced by artificial synthetic fluorine bronze mica, hydrolyzing the titanium dioxide completely and covering on the mica cloth in the glass lining autoclave, burning and getting the extraordinary nacreous pigments with high weatherability. The product is characterized by the high brightness, fire resistance which can reach as high as 1100DEG C, chemical stability, non-toxic, non-odour, flame-proof, acid and alkali-resisting, resistance to ultraviolet radiation, resistance to chemical solvent, non-conductive, and is adapted for special functionality textured paint application in space, navigation, automobile, ceramics and cosmetics and so on.

The invention discloses a welding electrode for welding -50 DEG C low-temperature pressure container steel. A core wire of the welding electrode is H08E of low S and P; a cover is prepared by the following components in parts by weight: 32-40 parts of marbles, 15-23 parts of fluorite, 4-8 parts of rutile, 5-7 parts of silica powder, 11-15 parts of iron powder, 5-9 parts of silicon iron, 3-6 parts of ferromanganese, 1-3 parts of ferrotitanium, 1.5-2.5 parts of metal nickel, 1-3 parts of phlogopite, 1-2 parts of sodium carbonate, and 0.5-1.0 part of graphite; all the components of the cover are evenly mixed, and 3.2 M pure sodium water glass of 24 weight% by the total weight of the components is added for mixing to prepare the cover; the rest production process of the welding electrode is performed by a conventional technology; the heat treatment is performed after the welding; and the temperature of 620 DEG C is keep for 1 hour, so that the mechanical performance is stable, the tensile strength reaches 560-620 Mpa at room temperature, and the -50 DEG C V-shaped gap impact power reaches above 110 J to satisfy the welding of the -50 DEG C low-temperature pressure container steel.

The invention discloses a method for preparing synthesized KMg3(AlSi3O10)F2 crystal powder through a wet process. The method comprises the following steps: (1) crushing synthesized fluorophlogopite with the particle diameter of more than 0.85 millimeters, and using an ore washer for scrubbing and sieving so as to remove impurities, wherein the scrubbing hydraulic pressure is between 0.15 and 0.2 MPa; (2) making the scrubbed materials enter a pulper for pulping, wherein the pulping hydraulic pressure is between 5 and 7 MPa; (3) performing sieve classification on the obtained materials by pulping into three materials with three kinds of particle diameter, namely the materials with the particle diameter of more than 0.25 millimeter, the materials with the particle diameter of between 0.25 and 0.125 millimeter and the materials with the particle diameter of less than 0.125 millimeter, and performing pressure filtration on the three materials respectively, wherein the water content of the materials after pressure filtration is between 31 and 40 weight percent; (4) using a wheel mill to perform fine grinding and sizing on the three materials respectively, wherein the rolling gap is between 10 and 40 millimeters, the sizing is performed in a group of sizing pools, the materials with the particle diameter of more than 0.25 millimeter are subjected to rolling and sizing to generate powder products with the particle diameter of less than 100 mu m, the materials with the particle diameter of between 0.25 and 0.125 millimeter are subjected to rolling and sizing to generate powder products with the particle diameter of less than 250 mu m, and the materials with the particle diameter of less than 0.125 millimeter are subjected to rolling and sizing to generate powder products with the particle diameter of less than 160 mu m; and (5) using a plate-and-frame filter press to perform pressure filtration on the products after sizing, making the water content of the products be less.

This invention relates to a synthetically derived zinc phlogopite platelets, of superior platelet diameter, effect pigments comprising such synthetically derived platelets and methods of forming said substrates. More specifically the disclosure describes an improved hydrothermal synthesis of zinc phlogopite suitable as a platelets for interference pigments, barrier and flame retardant applications.

This invention relates to synthetically derived zinc phlogopite substrates, of superior aspect ratio, effect pigments comprising such synthetically derived substrates and methods of forming said substrates. More specifically the disclosure describes an improved hydrothermal synthesis of zinc phlogopite suitable as a substrate for interference pigments, barrier and flame retardant applications.

The invention discloses a titanic-acid stainless steel welding electrode and a manufacturing method thereof. The titanic-acid stainless steel welding electrode comprises a core wire and a coating, wherein the coating comprises the following ingredients in parts by weight: 20-40 parts of rutile, 5-10 parts of marble, 5-10 parts of X-type titanium dioxide, 4-12 parts of fluorite, 10-20 parts of gold feldspar, 2-8 parts of ferrotitanium, 5-10 parts of phlogopite, 8-20 parts of micro-carbon ferrochrome, 0.1-1 part of antimony oxide, 3-10 parts of electrolytic manganese, 2-8 parts of potassium titanate and 3-10 parts of Haitai powder. The titanic-acid stainless steel welding electrode and the manufacturing method have the advantages that the surface tension of a molten drop is reduced, so as to achieve a fine molten drop spraying process; and not only is the welding efficiency improved, is the welding period shortened, and are the tendencies to redness and cracking reduced, but also the technological performance is improved.

The invention relates to a composite heating agent for die steel, made from, by weight, 7-8 parts of aluminum powder, 6-9 parts of activated calcium oxide, 4-6 parts of bauxite, 3-4 parts of magnesium chloride, 2-3 parts of potassium nitrate, 6-8 parts of phlogopite, 2-3 parts of sodium chloride, 5-7 parts of boron nitride, 5-7 parts of zinc silicate, 4-6 parts of vermiculite, 3-5 parts of quartz sand, 9-10 parts of diatomite, 3-4 parts of acidified graphite, 2-4 parts of silicon-calcium powder, 3-4 parts of sodium bicarbonate, and 4-5 parts of potassium chloride. The composite heating agent has a volume variation rate of 15% and below in a high-temperature environment so that the heating agent has high burning speed and more concentrated heat generation; the heating generation of the composite heating agent is increased by 35% and above as compared to traditional heating agents; less heating agent is used, production cost is reduced, and pollution emission is decreased.

The invention discloses a propylene material with high modulus and high rigidity for a light automobile door panel and a preparation method thereof. According to the key point of the technical scheme,the propylene material is prepared from the following raw materials in parts by weight: 78-88 parts of polypropylene, 4-8 parts of ultrafine inorganic filler, 6-12 parts of flexibilizer, 0.2-0.5 partof thermal stabilizer, 0-0.2 part of other additives, 1-2 parts of crystal whiskers and 1-2 parts of phlogopite. The preparation method comprises the following steps performing dry mixing on raw materials in a high-speed mixer for 2-10 minutes; putting into a twin-screw extruder; melting, extruding, cooling and granulating. The propylene material has excellent performance, and can meet the strength requirement for automobile door panels.

The invention relates to a high-performance heating agent. The high-performance heating agent is prepared from the following raw materials in parts by weight: 9 to 10 parts of diatomite, 4 to 6 parts of bauxite, 3 to 4 parts of magnesium chloride, 2 to 3 parts of potassium nitrate, 6 to 8 parts of potassium chlorate, 2 to 3 parts of sodium chloride, 5 to 7 parts of boron nitride, 7 to 8 parts of iron powder, 5 to 7 parts of zinc silicate, 4 to 6 parts of vermiculite, 3 to 5 parts of quartz sand, 6 to 9 parts of cryolite, 3 to 4 parts of expanded graphite, 2 to 4 parts of silicon and calcium powder, 3 to 4 parts of sodium bicarbonate, and 4 to 5 parts of phlogopite. The high-performance heating agent has the advantages that the volume change rate is controlled within 15% under the high temperature environment, the combustion speed is high, the heat is centrally generated, and the heating amount is increased by 35% or more in comparison with the traditional heating agent; the usage amount of the heating agent is smaller, the production cost is reduced, and the pollution emission is reduced.

The present invention relates to a modification method of a diaphragm with a polymethyl methacrylate-mica coating agent. The method for modifying a diaphragm with a mica coating agent is characterizedin that low-carbon ketone, coating agent and polyvinylidene fluoride are respectively added into a reaction kettle to prepare the diaphragm, wherein the low-carbon ketone, coating agent and polyvinylidene fluoride are respectively added into the reaction kettle. Hexafluoropropene, polymethyl methacrylate and the like, to obtain a viscous liquid. A substrate film is discharge, coated with a viscous liquid, and dry to obtain a coating film. The coating agent is sericite, muscovite, synthetic mica, conductive mica or phlogopite. The compatibility of the coating film with the positive electrode,negative electrode and electrolyte is obviously improved, and the cycle performance of the battery is improved.

The invention relates to a formula of a material for making a high-strength fire-resistant electric furnace insulating mat by hot molding, which is formed by mixing phlogopite powder, talcum powder, kaolin, alkali-free glass fiber and an adhesive. The mixture is characterized by comprising the following components in percentage by weight: 30-40% of phlogopite powder, 23-32% of talcum powder, 23-30% of kaolin, 6-10% of alkali-free glass fiber and 8-12% of adhesive. The phlogopite in the material has the characteristic of high melting point; the kaolin has favorable plasticity, high binding property and favorable fire resistance; the talcum powder is beneficial to the shape stability of the product, has favorable flowability, and is convenient for stripping; the alkali-free glass fiber has very high tensile strength; and therefore, the material for making a high-strength fire-resistant electric furnace insulating mat by hot molding has the overall characteristics of the materials above.

The invention discloses a heat insulating plate. The heat insulating plate is obtained through processing vermiculite, olivine, phlogopite, magnesite and a binder. The heat insulating plate is concretely obtained through the following steps: preparing the binder from dextrin, aluminum dihydrogen phosphate or phosphoric acid and silica sol in proportion; weighing 30-70 parts of vermiculite, 20-60 parts of olivine, 1-8 parts of phlogopite powder and 2-9 parts of magnesia, placing the weighed materials in a mixer, premixing the materials, adding 6-20 parts of the binder, mixing the premixed materials and the binder for 20 min, and ageing the obtained mixture for 30 min; and sending the aged mud into a die, pressing the aged mud to form a slab, sending the slab into a drying cavity, and drying the slab in a 200-500 DEG C environment to obtain the finished heat insulating plate. Compared with existing heat insulating materials, the heat insulating plate disclosed in the invention has the advantages of outstanding heat insulation effect, reduction of the temperature of the outer walls of ladles, foundry ladles, electric furnaces and other thermotechnical devices to 220 DEG C or below, great saving of the energy, reduction of the production cost, good protection of the thermal shock resistance of refractory thermals, and great prolongation of the service life of the electric furnaces, ladles, foundry ladles and other thermotechnical devices.

Belonging to the technical field of composite materials, the invention relates to an epoxy resin matrix composite material and a preparation method thereof. According to the invention, 4, 4-diaminodiphenylmethane tetraglycidylamine is adopted to achieve good heat resistance; T type bismaleimide resin is taken as the toughening agent, and titanium dioxide and phlogopite are employed as the filler to enhance the hardness and adjust the thermal expansion coefficient so as to match with a stainless steel cavity and improve the thermal shock resistance and heat resistance; boron trifluoride-ethylamine is adopted as the accelerant, and triethanolamine is taken as the curing agent to adjust the viscosity and curing crosslinking speed. The epoxy resin matrix composite material prepared by the method provided by the invention solves the problems of unsmooth surface, cracking, block fall and other problems after potting of an epoxy potting material used by ion flame detectors, the heat resistance is raised from the original 361DEG C to 408DEG C, the thermal expansion coefficient matches with a potting cavity material, and the material performance meets the requirements of supporting products. The epoxy resin matrix composite material is successfully applied to potting and filling materials of various aviation ion flame detectors already, and has great economic and social benefits.

The invention mainly relates to the technical field of ceramic glaze processing,and discloses an antibacterial wear-resistant transparent glaze. The glaze is prepared from 35-37 parts of feldspar,24-26 parts of dolomite,21-23 parts of talcum,20-22 parts of limestone,17-19 parts of phlogopite,4-6 parts of niobium pentoxide and 3-5 parts of anatase titanium dioxide. The antibacterial wear-resistanttransparent glaze is bright,transparent and light yellow in luster,has relatively good antibacterial property and wear resistance,can effectively avoid color changing and scratches of ceramic productsin the use process,keeps the ceramic products attractive,and prolongs the service life of the ceramic products. The phlogopite is crushed and added into a sodium carbonate solution,and the mixture isfrozen and then subjected to high-temperature calcination,so that combination of sodium carbonate and phlogopite particles is promoted,the alkali resistance and wear resistance of phlogopite are improved,the elasticity and the sliding property are reduced,then the transparent glaze can be tightly attached to ceramic,the sintering temperature after glazing is reduced,and a large amount of energy is saved.