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Invention relates to alumoborosilicate glasses for isolation of radioactive liquid effluents of a medium activity. Claimed is a qualitative and quantitative composition of alumosilicate glass, a glass-forming additive for its obtaining and a method of processing a radioactive liquid effluent of the medium activity with application of the claimed glass-forming additive, resulting in obtaining the said alumoborosilicate glass. |
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Invention relates to article with heat-reflecting coating. Silver ply, contact ply based on nickel oxide and/or chromium oxide, tin oxide play, zinc stannate ply, silicon nitride oxide, zing oxide ply are applied on the glass. Thermal flexure of glass substrate with coating is performed to convexity of axial line "x" making at least approx. 28 mm. |
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Invention relates to a fire-resistant thermo- and/or sound-insulating product. The fire-resistant thermo- and/or sound-insulating product is based on mineral wool, in particular an asbestos fibre or glasswool and an organic binding agent. The product contains a salt of metal and polycarboxylic acid as a fire retardant. |
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Method of production of foam glass Pulverised silicate glass and foaming agent are mixed, the resulting mixture is placed. Powder of water purification wastes formed as a result of removal of hardness salts during water treatment in thermal power stations, is used as a foaming agent. Quantity of sludge is of 1-10% from weight of silicate glass. |
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Method of manufacturing glass-ceramic material of cordierite composition Glass of a magnesium-alumosilicate composition, crystallised until the main crystalline phase cordierite is obtained, is applied as an initial material. Crushing of crystallised glass is carried out until water slip with a density of 1.98-2.02 g/cm3, with pH 2.0-4.0 and fineness with a residue on a sieve of 0.063 mm 0-10%. After that, blanks are formed with further thermal processing of the formed blanks at a temperature of 1360-1380°C for 1-6 hours. A rate of temperature increase and decrease is not higher than 500°C an hour. |
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Filling compound for fireproof glazing Filling compound for fireproof glazing contains epoxy resin Epoxy-520, a plasticiser - tricresyl phosphate, a fire-retardant - triphenyl phosphate and a curing agent - triethylene tetramine. |
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Fabrication of quartz crucibles Invention relates to refractory industry, particularly, to production of large-size quartz crucibles for smelting if silicon used in production of semiconductors. Proposed process comprises production of high-concentration suspension of quartz glass, its stabilisation, making the crucible blank, drying and annealing. Note here that crucible blank drying is performed at 150-300°C with curing for at least 1-3 h. Thereafter, blank inner surface is impregnated with methyl phenyl helical siloxane to the depth of 1-5 mm. Then, inner surface is coated by the same polymer with filler of silicon nitride in amount of 30-70% followed by polymerisation and annealing at 950-1000°C. |
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Charge for production of silicate glass Invention relates to compositions of charges for production of glass and can be used for manufacturing products of industrial and decorative-artistic purpose, as well as in production of ceramic products. A charge for production of silicate glass is obtained by mixing wastes of trotyl and nitrobenzene production - a mixture of trotyl and nitrobenzene mother liquor and their cinder with silica, chalk, dolomite, kaolin, accelerating, reducing and clarifying additives with the following component ratio, wt %: quartz sand 42.4-45.6; chalk 1.0-1.2; dolomite 10.2-10.5, kaolin 2.3-2.5; cinder of trotyl and nitrobenzene mother liquor 28.5-30.8; mixture of trotyl and nitrobenzene mother liquors, solid substance 10.8-11.8; coal 1.2-1.4. The charge melting is performed at 1350-1400°C. |
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Combined sealing of vacuum glass Invention relates to sealing of vacuum glass. Metal paste coating is applied on glass surface in sealing area. Glass is heated to form a metalised ply on the glass. Then, glass plate is toughened. Metal foil is arranged between metalised plies of two glasses and used as a solder. Now, soldering is performed to get a sealed joint. |
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Method for obtaining foamed material, and charge for its manufacturing Charge for manufacturing foamed material includes amorphous silicic rock and sodium liquid glass with modulus of 1.2-1.5 and density of 1350-1400 kg/m3 at the following component ratio, wt %: amorphous silicic rock - 43; sodium liquid glass - 57. Initial charge components are mixed during 10-15 minutes and plastic moulding compound is obtained. Mass is granulated with further granule powdering in expanded vermiculite with grain size of 0.5-2.5 mm. Foaming of granulated charge is performed in closed volume of a metal mould at the temperature of 680-700°C during 0.5-1 hour. Cooling of moulds with ready-made items is performed from foaming temperature to the temperature of 50°C in the air during 1-3 h. |
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Glass-melting tank with ledge and method of heating charge in said tank Glass-melting tank has at least one charge loading ledge and at least one feeder. Note here that the ledge in direction of melting bath has inner length LV making at least 2.250 mm. At length LG making at least 1.200 mm, it has isolation floor including feeder front wall with floor including the gas chamber open for melting bath. Note here that the so-called index K of 3.50 t/h and per one square metre of surface is not exceeded and is calculated from K=P/F, where K=P/F and P is the smelting rate per hour in tons (t) and F is ledge inner surface in metres (m2). |
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Method involves adding nanopowder of a rare earth fluoride into a mixture - fluoride glass powder, mechanical mixing of the fluoride glass powder and the rare earth fluoride nanopowder while simultaneously grinding the fluoride glass to particle size of 0.1-0.5 mcm and pressing. The mixture is placed into a mould for pressing. The required pressure is applied, followed by heating to glass-transition temperature without reducing the pressure. |
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Invention relates to a method of producing a substance with a non-stoichiometric composition from a molten glass-forming multi-component system. The method of controlling process depletion intensity when producing a substance with a non-stoichiometric composition involves using non-connected anode and cathode baths with a melt and applying an electric field on the melt, which results in tearing away of electrons from the molten glass-forming multi-component mixture, with accumulation of a stream of torn electrons in a closed electrical circuit. Volume-distributed positive electric charges along with anode charge field polarise the melt in the cathode bath as well, where material of a first type is placed with interfacing with the melt; the formed fields act in a particular manner on mobile cations of the melt which, at the electrode of the cathode bath, change their concentration in the melt with decrease to a given value, which is accompanied by release at the cathode of an associated metal of the type of mobile cations, wherein due to combination of chemical elements and in the presence of gases, structural changes occur in the melt to obtain a new substance which is characterised by its single-phase nature and non-stoichiometric chemical composition; the melt is then cooled at a certain rate. At the initial phase of heating to the required glass-transition temperature and "accelerating" the column to a state where process depletion occurs with the onset of a gas glow in the volume of the melt to form plasma radiation for subsequent maintenance of sufficient and high intensity of plasma radiation in the glass-forming multi-component melt, additional pumping UV radiation is transmitted to both baths from the outside, the value of said radiation being close to, matching or being in resonance with radiation in the column. Output of electrons and transfer of cations in the melt are then controlled; intensification and stabilisation of process depletion at all phases are conducted by applying additional external combined energy effects which cover the anode and cathode baths with the melt in form of additional different non-uniform electromagnetic fields whose strength values differ 2-3 fold, and configuration of the non-uniform overall field is created by arranging inclination angles from 5-7° to 85-90° of centre axes of fields of coil systems to the axis of the column depending on chemical composition of components of the melt. |
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Invention relates to method of obtaining melted glass, furnace for glass melting, device for obtaining glass products and method of obtaining glass products. Method of obtaining melted glass includes supply of particles of initial glass material into zone of introduction of particles of initial glass material of furnace for glass melting, with formation of first gas-phase zone for transition of particles of initial glass material into liquid glass particles by heating means above zone of introduction of particles of initial glass material; supply of pieces of broken glass, which have the smallest diameter (A) 0.5 mm<A<30 mm, into zone of introduction of broken glass pieces of furnace for glass melting, with formation of second gas-phase zone by heating means above zone of introduction of broken glass pieces for melting pieces of broken glass into glass particles, at least, surface of which is melted. After that, particles of initial glass material are transferred into liquid glass particles and pieces of broken glass into glass particles, at least, surfaces of which are melted in gas-phase atmosphere, after which glass particles, at least, surfaces of which are melted, are accumulated together with liquid glass particles, obtained from particles of initial glass material, with formation of liquid glass melt. |
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Method of obtaining silicon dioxide-based coatings Method of coating obtaining includes sol-gel process of silicon tetraalkoxide, application of sol on glass, heating sample with coating in air atmosphere. Suspension of nanodiamond in water solution of SAS with concentration 0.04-0.06 mol/l is additionally introduced into suspension, with amount of nanodiamond relative to the total mixture constituting 0.3-0.5%, mixture is subjected to mechanical mixing for 5-10 min, then, to US-exposure at frequency 18-20 kHz for 20-30 min, after which float glass is submerged into prepared mixture, and then removed at rate 5-7 cm/min and subjected to drying and thermal processing at 450-470°C for 20-30 min with further cooling. As SAS used are cation-active substances, in particular, quaternary ammonium salts of cetyltrimethylammonium bromide, or octadecylammonium chloride, or trimethylhexadecylammonium chloride type. Method ensures glass resistance to scratching, increase of microhardness by more than 200% and light permeability at level 80-85%. |
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Painting canvas containing agent capable of absorbing formaldehyde and method for production Invention relates to a painting canvas based on glass fibre intended to be applied on the inner surface of a building, which contains an agent capable of trapping formaldehyde, as well as a method of making said painting canvas. The painting canvas contains an impregnating agent and an agent capable of trapping formaldehyde which is selected from compounds with active methylene groups, hydrazides, tannins, amides, amino acids, peptides and proteins. The method of making the canvas involves feeding the canvas into a padding machine or device having two rollers, each having a centre tube for feeding the impregnating agent under pressure, followed by drying and collecting the canvas. The method includes a step of treating with an agent which is capable of trapping formaldehyde. |
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Proposed composition contains the following substances, in wt %: soda - 19.0-21.0, borax - 5.0-7.0, cryolite - 5.0-7.0, perlite and/or obsidian - 67.0-69.0. Glass melting is performed at 1260-1300°C. Melt is poured in metal moulds made from refractory steel. Glass articles are subjected to annealing and machining. |
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Preform fabrication and processing, preform and optical fibre Invention relates to preform fabrication and processing, preform and optical fibre. Proposed method comprises preliminary processing stage whereat silicon dioxide powder is fed into quartz tube with open top end and stopped bottom end to make a green preform. It includes also finishing stage whereat inner space of said quartz tube is plugged and evacuated. Said green preform is heated to final temperature for smelting of quartz tube and silicon dioxide powder. note here that at preliminary stage silicon dioxide powder fed into inner space is subjected to heat treatment at intermediate temperature lower than powder melting point. |
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Production of mineral cotton-based insulating materials Invention can be used for production of isolation materials based on mineral cotton, in particular, store of glass wool bonded by adhesive composition based on thermosetting resin, particularly, resol. Proposed process comprises application of reagent composition able to interact with formaldehyde selected from compounds with active methylene group on isolation product after cross-linking of thermosetting resin. |
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Mould for manufacturing glass products and method of obtaining it Invention relates to moulds for manufacturing glass products and can be used in glass industry. Mould for manufacturing glass products is made from grey ferrite-pearlite cast iron, which contains, wt %: carbon - 3.2-3.6; silicon - 1.8-2.3; manganese - 0.5-0.7; chrome - 0.00-0.25; nickel - 0.6-0.9; molybdenum - 0.3-0.5; titanium - 0.00-0.1; copper - 0.1-0.2; sulphur - 0.00-0.1; phosphorus - 0.00-0.1; iron - the remaining part, and which has structure, consisting minimum of 95% ferrite and not more than 5% pearlite, in which free graphite is of flake shape, with graphite structure being coarse-grained on the external side and fine-grained - on the internal side. Mould is cast from cast iron of said composition, with casting being performed on metal cooler. |
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Device for pushing glass products onto conveyor belt Present invention relates to device for pushing glass products from delivery tray of glass-forming machine onto conveyor belt. Device for pushing glass products from section delivery tray (39) of sectional glass-forming machine onto moving belt (42) of conveyor by means of pusher (18) which made capable to push out glass products and is installed on lever end being capable to turn around vertical axis (19). Herewith, the other lever end is connected with vertically running shaft (14) which is installed with possibility to turn around vertical axis (23), herewith, shaft (14) is positioned with possibility to make eccentric turn around positionally fixed vertically running axis (8). The device contains the first electric motor (1) executed with possibility to create shaft (14) rotational movement around axis (8), the second electric motor (12) ) executed with possibility to create shaft (14) rotational movement around axis (23) and the third electric motor (13) executed with possibility to create pusher (18) rotational movement around axis (19) relative to the said lever, herewith, the second motor (12) and the third motor (13) are held on bracket (4) installed with possibility to rotate around axis (8). Bracket (4) is connected with vertically running driving shaft (3) of the first positionally fixed electric motor (1) with fixation with possibility of rotation where crank arm (17) connected with shaft (14) when fixed with possibility to rotate is the said lever. One end of pushing rod (28) is hinged with pusher (18) while locating at distance relative to axis (19) with possibility to turn around vertical axis (29), and the other end of pushing rod is connected with possibility to be actuated with the third electric motor (13) via vertical axis (27) and forms chain of four rods with crank arm (17) and pusher (18). Element (9) for accommodation performed with two accepting sockets (10, 11), is statically connected with bracket (4); the second motor (12) and the third motor (13) are held in accepting sockets (10, 11) eccentrically relative to axis (8), while element (9) for acceptance is closed on upper side by cover (35). Extending part (20) passing coaxially relative to axis (23) extends from cover (35), and hollow shaft (24) is installed in extending part (20) being able to rotate around axis (23) and is connected with ring-shaped element (26) with which facing to it end of pushing rod (28) is pivotally connected with possibility to rotate around axis (27). |
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Anti-adhesive and device for food making Invention relates to anti-adhesion sheets for food production and to method of their fabrication, proposed material including the layer with fluoropolymer. This material comprises the main surface with vaporisation structure at density making at least 10 per square inch. Proposed sheet comprises woven material with glass fibre, first coat on woven material containing perfluorine polymer and surface coat over first coat to make the sheet main surface. Surface coat comprises the main surface with vaporisation structure at density making at least 10 per square inch. Said sheet features thickness not exceeding 5 mm. Food making device comprises anti-adhesion material containing fluorine polymer. |
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Interlayer film for sandwiched glass and sandwiched glass Invention relates to interlayer film for sandwiched glass. Proposed film is based on polyvinyl acetate resin, plasticiser and indole compound. Indole compound features the following chemical formula: (1), wherein R1 is alkyl group containing 1-3 carbon atoms, while R2 is hydrogen atom, alkyl group containing 1-10 carbon atoms, or aralkyl group containing 7-10 carbon atoms. |
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Invention relates to glass melting furnaces. Glass melting furnace comprises melting vessel shaped to melting channel wherein stock is loaded at upstream end while fused glass results at downstream end. Note here that said furnace is heated by burners wherein at least 80% of combustion energy results from oxygen combustion. Note here that oxygen is continuously fed from industrial plants located nearby or connected via pipelines. Note also that said furnace is equipped with oxygen storages to allow furnace operation under emergent conditions for at least 8 hours and, preferably, 20 hours, most preferably, for 30 hours. Note that power produced by burners under emergent conditions equals not over one third of power under normal operating conditions. |
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System and method to control temperature in feeder channel Invention relates to the system and method for regulation of feeder channel temperature. The system for temperature regulation in the channel of glass mass feeder, comprising a glass mass feeder channel, at least one burner interconnected with the specified feeder channel, designed to heat glass mass in the specified feeder channel. At the same time the specified system, moreover, comprises a distributor, connected with the specified burner, a source of burnt fuel connected with the specified burner, an air blower for combustion air designed to supply ambient air under pressure into the specified distributor, a controller connected with the specified burner and serving to regulation operation of the specified burner, and a temperature sensor functionally connected with it, installed downstream from the specified air blower for supply of a signal to the specified controller showing temperature of combustion air supplied into the specified distributor with the help of the air blower, and the specified controller reacts at the specified temperature signal for regulation of burner operation depending on the current temperature of combustion air, arriving to the specified distributor. Besides, the temperature sensor is installed downstream from the specified air blower and upstream from the specified distributor, and the specified controller is made as capable of reacting to the specified temperature signal for regulation of burner operation depending on sliding average temperature of combustion air produced during the preceding period of time making at least two days. |
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Method of making of bent electric heating laminar glass article Invention relates to electrically heating bent laminar glass articles. Tim dioxide-based current conducting coat is applied on one of surfaces of vertically fitted flat glass blank by spraying of aerosol. Application is executed uniformly over the glass blank surface. Then, at least two glass blanks are bent at a time at frame-type die followed by gluing them together. |
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Sheet glass bending mould has a base and supports mounted thereon, which hold the forming frame with given curvature of the forming surface. The supports are in form of two elements lying at an acute angle to each other and capable of adjusting the curvature of the forming frame. The mould further includes support bars mounted on the base of the mould parallel to each other and lying outside the space of the forming frame. |
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Pressing unit of automatic press machine (apm) APM pressing unit comprises interconnected punch and stem with a longitudinal channel where a pipeline with a sealing element at rear end is installed with a gap, the front end of the pipeline is fitted with a hollow tail piece of a hollow disk placed in the punch cavity with a gap with the tail piece being connected to the stem as well. A longitudinal channel and cross ports looking at the stem bottom are provided in the walls of the rear and front connection parts of the stem, and the second sealing element is located at the connection part of the stem. The cross ports in its front part are made as an annular gap formed by the surfaces of the punch, front end face of the stem, tail piece and rear end face of the disk and the stem open to the longitudinal channel through the longitudinal grooves of the joint "stem - disk tail piece". |
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Invention relates to granular foamed slag glass. The granular foamed slag glass is obtained from the following components, wt %: thermal power plant slag 55-70; boric acid 10-20; chalk 1-5; scrap glass 14-25. |
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Method for melting and vacuum clarification of high-temperature glass Glass is melted in a platinum vessel in a vacuum furnace to volume of more than 4/5 of its height and held for 2-3 hours at a given melting temperature. The vacuum in the furnace is then increased in 8-9 steps in the range from 700 to (100-50) mbar and viscosity interval of (160-35) Pa·s while holding for 0.25-12 hours at each step. After clarification, temperature is optionally lowered until the glass mass achieves working viscosity and the glass mass is moulded into blocks. |
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Method of producing green heat-absorbing glass for vehicles and construction Method of producing green heat-absorbing glass is carried out by controlling the redox potential of glass mass by adding a mixture of oxidising agents and reducing agents to the charge mixture: oxidising agents - sodium sulphate and sodium nitrate (Na2SO4+NaNO3) in total amount of 10.0-12.5 kg per ton of glass mass, with the ratio (Na2SO4:NaNO3)=(4-2):1 and a carbon (C) reducing agent with the ratio (Na2SO4+NaNO3):C=1:(0.02-0.025). Additional dyes from the family Cr2O3, CuO, Pr2O3, V2O5 can also be added to the charge mixture, with the following content thereof in the glass, wt%: Cr2O3 - 0-0.03; CuO - 0-0.25; Pr2O3 - 0-0.07; V2O5 - 0-0.08 and mixtures thereof. Said glass has a visible light transmission coefficient (TV)≥70% and full solar energy transmission coefficient (TS)≤50% with dominant wavelength λd of 498-530 nm and degree of reduction of Fe2O3 therein to FeO of 25-30%. |
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Production of granulate from foam glass, granulate of foam glass and its application This invention relates to production of foam glass granulate. Proposed method comprises preparation of initial components of the mix including 80-95% of glass and 5-20% of liquid glass hydrate with a portion of crystallisation water in amount of 1-2 wt % of solid substance. Note here that said liquid glass hydrate makes a sole foaming agent. Glass is ground and initial materials are mixed, then pelletised to get green granulate. Said green granulate is mixed with separation agent taken in amount of 10-40% of the mix. The latter comprises green granulate and separation agent. Said mix is heated to processing temperature. Said temperature is as high as glass minimum sintering temperature decreased by liquid glass hydrate and smaller than glass fusion temperature. This allows, at primary stage, to close pores on green granulate grain surface and, at second stage, to release crystallisation water from said liquid glass hydrate to cause its thermal expansion. This makes green granulate grains swell to make granulate from foam glass. Now, granulate is cooled down. |
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Device for glass cutting comprises an element of impact at glass or a handle. At the same time the element of impact at glass is made in the form of movable platforms connected rigidly to each other by links and connected with a power stem, which interacts with a body of a device via thread, and grids of knives with cells for items placed on fixed platforms that are also rigidly connected to each other by links. The handle is made as detachable and interacts with a power stem via a joint with a ledge and slots, and glass at the same time is placed onto grids from knives and is equipped with a heater for its heating to temperature of glass softening. |
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Glass for producing continuous glass fibre Glass for producing continuous glass fibre contains components in the following ratios, wt %: SiO2 50.0-60.0; Al2O3 10.0-20.0; CaO 12.0-16.0; MgO 6.0-10.0; TiO2 4.0-10.0; R2O (Na2O+K2O) 0.1-0.7; ZrO2 0.01-0.4; Fe2O3 0.01-0.5, wherein the glass has a low upper limit crystallisation temperature of 1240°C and first hydrolytic class chemical resistance. |
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Method of producing of coloured foamed glass Ground silicate glass is mixed with a carbonate-containing gas-forming agent. The gas-forming agent is saturated with 3-5% aqueous cobalt nitrate or nickel nitrate or copper nitrate or manganese nitrate solution, followed by drying to constant mass. The mixture is laid down, dried, annealed and then cooled. |
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Glaze contains, wt %: scrap window and/or container glass 77-80; kaolin 2-3; borax 10-14; cryolite 6-8. The glaze has frost-resistance of 40 cycles. The glaze is fired at temperature of 830-900°C. |
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Decorative facing material contains, wt %: crushed silicate glass 63.0-92.0; granulated waste slag from copper and nickel production 5.0-35.0; sodium chloride 1.0-3.0. |
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Production of vacuum expanded glass Invention relates to production of heat-insulation foamed materials. Glass powder is heated in helium medium at 0.2-0.5 MPa to 800°C. Molten glass mass is held in heating zone to saturation with helium. Then, gas pressure is decreased to 0.01-0.1 kPa to allows foaming of glass medium by dissolved gas. Rarefaction in gas is maintained to cool down said glass mass to vitrification stage. |
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Method of making heat-insulation blocks Invention relates to production of heat-insulation building materials with closed porosity. Binder solution is prepared first via combined wet grinding of silicate lumps with silica modulus of 1-3 and a silica-containing component with ratio of dry components of 1:1-1:5 and water to solids ratio of 1:1.2-1:4 at temperature of 70-110°C until complete dissolution of the silicate lumps. The silica-containing component is then added to the binder solution until a moulding compound with moisture content of 5-35% is obtained. The moulding compound is granulated and dried. The raw granules are placed in a mould and heated to foaming temperature, followed by annealing. Cooling is carried out at a rate of not more than 4°C per minute. |
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Method and device for loading of heaters for glass-making devices Distributor with at least three rotary distribution plates are arranged above top heating elements, rotational axes thereof extending in horizontal edges of virtual prism. Top distribution plate drops loaded material down on one of distribution plates located under it for it to drop it along its one edge downward. Displacement of distribution plates is controlled by transducers with actuator control and data processing circuit. |
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Lustreless black tile glaze contains the following, wt %: clay 4-6; quartz sand 37-39; yellow lead 24-26; pyrolusite 9-11; borax 5-7; pegmatite 15-17. The glaze has frost-resistance of 100-110 cycles. The glaze is fired at temperature of 950-1000°C. |
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Method of making of glass-ceramic insulating coating for conductors Invention relates to glass-ceramic insulating materials to be used for insulation of wire from nickel and its alloys, thermocouple alloys and bimetallic wires. Proposed method comprises producing sol based on tetraethoxysilane hydrolysed in acid medium and alloyed with inorganic acids and the mix of metal nitrates, mixing said sol with refractory oxides, homogenising of produced suspension by ultrasound with application of coating on wire and coating heat treatment. Coating application and thermal treatment are carried out by feeding wire through bath with suspension and through tunnel kiln at the speed of 0.5-3 m/min at sol-to-oxide ratio equal to 1-2:1. |
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Mixture for making composite microspheres and method for production thereof Invention relates to preparation of a mixture for producing composite materials. The mixture for making composite microspheres contains the following components, wt %: glass powder - 25; aluminium powder - 25; liquid glass - 20; water - 30. A 40% aqueous solution of liquid glass is prepared first. The glass powder is mixed with aluminium powder in ratio of 1:1 and then added to the liquid glass solution in portions. |
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Heat-resistant green glass for light filters Invention relates to glass industry, particularly a composition for heat-resistant green glass, intended for making light filters with an irregular curved surface, coated with a current-conducting layer of a film used in fifth-generation aircraft lights. The heat-resistant green glass for light filters contains SiO2, K2O, Li2O, CuO, Cr2O3, SrO, BaO, Bi2O3, P2O5, ZrO2 with the following ratio of components, wt %: SiO2 72.0-75.0; Li2O 1.5-3.0; ZrO2 1.0-2.0; K2O 5.0-7.0; BaO 75.0-9.5; P2O5 1.0-1.5; Bi2O3 2.0-3.0; SrO 2.0-4.0; CuO 1.5-2.0; Cr2O3 0.1-0.2. The technical result of the invention is that the disclosed heat-resistant green glass has a high integrated optical transmission coefficient which, after application of a current-conducting SnO2 coating, provides high brightness of the signal and chromaticity coordinates which meet International Commission on illumination requirements. |
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Glass sheet air cooling/toughening device and method of air cooling/toughening Invention relates to glass sheet toughening device. Proposed device comprises top and bottom glass sheet air blowers. Said top and bottom air blowers are equipped with nozzle chambers each being furnished with air blowing holes facing the glass sheets. Every said nozzle chamber has the part wherein air blowing holes are arranged along first direction and the part wherein air blowing holes are arranged along second direction so that some holes on top view are turned from said first direction. |
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Method of making anisotropic single-mode fibre light guides Invention relates to fibre-optics and can be used in making anisotropic single-mode fibre light guides. The method involves making a cylindrical workpiece by MCVD method, which has a core, a low-viscosity tensive cladding and a structural cladding. Two grooves are made at diametrically opposite sides of the workpiece, followed by high-temperature rounding of the workpiece and drawing of the fibre. The structural cladding consists of quartz glass doped with P2O5 and/or B2O3 and/or F additives in an amount which enables to lower the compression and rounding temperature by 100-150°C. |
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Interlayer for laminated glass Invention relates to interlayer film for laminated glass and laminated glass, which contains claimed film. Interlayer film for laminated glass includes soundproof layer, for which temperature T1, which is the temperature giving maximal value of tangent δ at frequency 1 Hz, lies in the range from -30°C to 0°C. Soundproof layer contains 71-160 wt.p. of plasticiser relative to 100 wt.p. of polyvinyl acetal resin, which has 3 or 4 carbon atoms in acetal group, or 50-80 wt.p. of plasticiser relative to 100 wt.p. of polyvinyl acetal resin, which has 5-12 carbon atoms in acetal group. Laminated glass contains claimed interlayer film, placed between two transparent sheets. |
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Invention relates to artificial fused silicate ceramic materials, particularly cast stone compositions, and is meant for making bulletproof armoured plates (boards) of bulletproof vests. Besides the defence industry, the invention can be used in construction, ore dressing and other industries. The disclosed stone cast material has components in the following ratio, wt %: SiO2 43-45; Al2O3 15-16; CaO 9-17; FeO 5-8; MgO 8-9; Fe2O3 3-5; TiO2 1-1.5; K2O and/or Na2O 2.5-4; Cr2O3 2-2.5 and CaF2 1.5-2. Owing to use of cheap technologies, raw material and optimum content of additives, the stone cast material has a lower cost. Availability of dissipative properties which meet GOST R 50744-95 "Armoured garments. Classification and basic requirements" attests to its suitability for making bulletproof armoured plates of bulletproof vests. |
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Method of forming silver nanoparticles in glass Method involves depositing a silver film on the surface of silicate glass doped with cerium, holding the obtained structure at temperature of 400-600°C for 2-10 hours, irradiating the structure with UV radiation and then holding at temperature of 400-600°C for 2-10 hours. |
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Total thermal load of 66-69% of the overall thermal load is set on a five-burner furnace at the first three burners of the furnace over the melting zone with the same thermal load at each of the three burners of 22.5±0.5%. As a result, the temperature maximum in the gaseous media is set in region of the third burner, the hotspot approaches the mixture melting zone and total thermal load of 31-34% of the overall thermal load on the furnace is set in clarification and homogenisation zones. The difference between temperature in the gaseous medium at the end of the melting tank of the furnace and at the beginning of the mixture melting zone before the first burner is kept at 10±5°C. The invention enables to completely automate the melting process. Power consumption is 1400-1500 kcal per kg of the molten glass mass. The operating period of the furnace is 10-12 years. Output of high-grade sheet glass increases by 8-10%. |
Another patent 2513645.