124 results about "Aluminium" patented technology

The invention concerns a safety component with high mechanical strength and good ductility, moulded in Al-Si alloy consisting (in wt. %) of: Si: 2-11; Mg: 0.3-0.7; Cu: 0.3 0.9; other elements <1 each and <2 in total, the rest being aluminium, and solution heat treated, tempered and hardened resulting in Brinell hardness of more than 125. The invention also concerns a safety component with high mechanical resistance and good ductility, moulded in Al-Si alloy consisting (in wt. %) of: Si: 2-6; Mg: 0.3-0.7; Fe <0.20; other elements <0.3 each and <1 in total; the rest being aluminium; solution heat treated, hardened and tempered resulting in a quality index Q=Rm+log A>485 MPa.

A gas generating process, which is for the continuous production of energy and hydrogen for rocket and other propulsion and is also for the continuous production of hydrogen, utilizes the reaction of metallic materials, particularly aluminum, with organic materials, particularly hydrocarbons provided as jet fuel, and with water or an oxidizer which is predominantly water. In comparison with related reactions, the reaction produces hot gases containing more hydrogen and the products have a lower temperature for the same specific impulse. The process incorporates organic liquids with metallic powders to produce desirable, lower molecular weight exhaust gas products; and the increased hydrogen is desirable for use with a fuel cell and in connection with propulsion of a super-cavitating underwater device. The process is advantageous in that a metal, in powdered form, and a hydrocarbon liquid may be provided together as a slurry or gel for effective metering. The metallic material may also be provided with the organic material in the form of a binder as used in solid propellants, and the organic material and water may be provided together in the form of a water containing liquid monopropellant. The hydrogen containing product gases from the reaction may be further reacted with suitable oxidizers for production of additional energy or steam. The reaction is particularly useful for underwater vehicles where ambient water is available and the reaction products may be used for propulsion.

The invention discloses a producing method for copper coated aluminum row profile, and the method comprises following steps in turn: 1) cleaning, 2) drying, 3) head rolling, 4) clearance drawing, 5) bimetal combining furnace heating, 6) high frequency induction heating, 7) hot drawing, 8) heat preserving, 9) oxide layer washing and 10) packing. Beneficial effects of the invention are: the metal is not oxidized during drawing. The high frequency induction skin effect enables two kinds of metal with significantly different melting points reaching the critical point of composite metal metallurgy integrating temperature simultaneously, so a permanent compact metallurgical combining is realized between the two kinds of metals. The density of the profile in the invention is only 36.5% to 41.6% of that of pure copper rows, the length of the profile is 2.45 to 2.70 times of that of pure copper rows, the tensile strength of the profile is over 1.6 to 2 times of that of pure copper rows, and the specific resistance is between 0.027310 ohm question mark mm2/m(-40 Celsius system) and 0.041506 ohm question mark mm2/m(70 Celsius system).

A deformable Al-Mn alloy contains Si (0-0.6%), Fe (0-0.7%), Cu (0-0.3%), Mn (0.3-1.6%), Mg (0-1.3%), Ti (0.005-0.15%), RE (0-0.4%), B (0-0.03%), impurities (0-0.7%) and Al (rest). Its preparing process includes such steps as smelting fine-crystal Al ingot, adding others, smelting Al-Mn alloy, and pressure machining.

The invention provides a synergetic metal recycling method for nickel and cobalt containing waste batteries and copper containing electronic waste. The preliminarily smashed and metal element enriched waste batteries and the copper containing electronic waste are mixed, and a slag former and a reducing agent in a certain ratio are blended for an oxidative reducing reaction; relatively active metal iron, aluminum and the like in the reaction process form oxide to enter an upper layer slag phase; metal cobalt and nickel enter copper liquid on the bottom layer, and therefore the metal phase and a slag phase are separated, and metal containing copper, cobalt and nickel is obtained; and copper, cobalt, nickel and other high-purity metal are recycled through electrorefining. The method is short in flow, high-temperature thermometallurgy is adopted for synergetically recycling the valuable metal in the batteries and the electronic waste, and the problems that traditional waste battery wet recycling efficiency is low, the environment is polluted, a large amount of lixivium needs to be used, and a large amount of acid and alkaline is consumed are avoided; and an efficient novel recycling way is provided for waste ternary battery and electronic waste resource recycling, and good industrial application prospects are achieved.

The invention belongs to the technical field of a refractory castable, and particularly relates to a castable for a blast-furnace tapping channel and a preparation method thereof. The castable comprises the following components: 55-80wt% of fused brown corundum, 8-21wt% of silicon carbide, 0.01-5wt% of carbon source, 2-8wt% of alpha-alumina micro powder, 1-7wt% of fused white corundum, 0.5-5wt% of silica powder, 1-5wt% of calcium aluminate cement, 0.3-4wt% of elemental silicon powder, 0.01-0.4wt% of water reducing agent, 0-0.2wt% of organic fibers and 0-0.2wt% of aluminum powder. The preparation method comprises the steps of dry-blending the components for 10-180 seconds, additionally adding water accounting for 4-6wt% of the raw materials, and stirring for 1-8 minutes so as to obtain the castable. Carbon nanotubes are introduced to the castable for the tapping channel so as to partially or totally replace spherical asphalt and be uniformly distributed in the castable, and can be filled into tiny gaps so as to improve the compactness of the castable, so that the anti-erosion and anti-scouring properties of the castable are improved, toxic smog formed in the process of baking the spherical asphalt is reduced, and the body injury of workers and the environmental pollution caused by the toxic smog are reduced; the castable has the characteristics of excellent properties, long service life and environmental friendliness.

The invention provides a vacuum purifying device of high-purity aluminium, belonging to the technical field of casting metallurgy. The vacuum purifying device comprises a furnace case, a melting device, a solidification device, an adiabatic device, an electromagnetic stirring device, a down-drawing mechanism and a fixed bracket, wherein, the electromagnetic stirring device, the melting device and the adiabatic device are sequentially fixed on the fixed bracket from outside to inside; the adiabatic device surrounds the periphery of a crucible; the solidification device is positioned below the melting device and coaxially and fixedly arranged with the melting device; the down-drawing mechanism is arranged at the bottom of the furnace case and is connected with the lower end of the solidification device; and the fixed bracket is fixedly arranged in the furnace case. The maximum growth speed of the crystal of the invention can reach 27cm/h, 4N pure aluminium is purified once, and the average purity of 85% of input materials can reach more than 5N, and the average grain size is below 150 mu m.

The invention relates to a honeycomb core with high strength and light weight, which comprises a honeycomb core body which is formed by assembling a plurality of boards. The boards are provided with a plurality of eyelets to ensure that the whole honeycomb core is in a single-track ventilation passage with the outside world and the high-temperature gas in the honeycomb core can be discharged from the eyelets, thus reducing the pressure bored by the honeycomb core and preventing the appearing of arch bar and being not easily affected with damp. Different from the existing technology in the manufacturing method of the honeycomb core with high strength and light weight, after gluing, the steps of drying and pricking are added, and alloy aluminium plate is pressed for 2 hours under the temperature of 183 DEG C to 187 DEG C; the strength of the alloy aluminium tape is 31.8 N/cm, which meets the tensile strength when using in aviation, high-speed trains and wind-power blades and has major surplus.

The invention relates to a low-density high-intensity ceramsite fracturing propping agent and a preparation method thereof. The low-density high-intensity ceramsite fracturing propping agent has a core material body which is composed of the following materials in percentage by weight: 30-40% of bauxite, 10-15% of talcum, 10-12 % of mullite, 12-15% of metakaolin, 6-15% of potassium feldspar, 3-6.5% of titanium dioxide, 1-3% of manganese powder, 3-4.5% of nano calcium carbonate, 2.5-3.5% of iron trioxide and 2.5-3.5% of magnesium orthosilicate; a gel breaker layer is arranged outside the core material body, and the gel breaker layer is sequentially coated with an external coating and a lubricant layer. When in preparation, various materials are firstly ball-milled, sieved and graded, and then matched in different ways; the potassium feldspar and the titanium dioxide both can reduce reaction temperature to a certain extent; the added manganese powder mainly plays a role in catalyzing; the nano calcium carbonate plays a role in reducing density of product; sintering temperature needed by the product is 1250 DEG C; the product is low in density, strong in anti-fracture capacity and high in sphericity; and meanwhile, the production technology is simple and easy to popularize and implement.

The invention relates to a Y-type molecular sieve-containing hydrocracking catalyst carrier and a preparation method thereof. The carrier consists of a modified Y-type molecular sieve and alumina, wherein the Y-type molecular sieve is obtained by the treatment by mixed aqueous solution of an aluminum salt and an acid and by hydrothermal treatment and has the properties of a specific surface of between 750 and 850m<2>/g, a total pore volume of between 0.35 and 0.48ml/g, a relative crystallinity of between 90 and 130 percent, a cell parameter of between 2.437 and 2.445nm, a silicon to aluminum molar ratio of between 15 and 70, an infrared acidity of between 0.5 and 1.0 mmol/g, a Bronsted acid to Lewis acid ratio of more than 7.0 and a sodium oxide content of less than or equal to 0.05 weight percent. The carrier can be used in the preparation of a hydrocracking catalyst, and the obtained catalyst has the characteristics of excellent catalytic activity, high heavy naphtha selectivity, high yield, high aromatic hydrocarbon potential content of the heavy naphtha and the like.

The invention discloses a copper and iron compound honeycomb coating type denitrification catalyst as well as a preparation method and application thereof. The catalyst provided by the invention takesa copper-based molecular sieve prepared through an ion exchange method or an immersion method as an active component, ferric polysilicate is added as a co-catalysis component, a honeycomb cordieriteceramic block is used as a carrier and an aluminum sol is used as as a binder. The catalyst prepared by the invention is prepared through a vacuum coating method; the preparation method is simple to operate, holes are not liable to block in a coating process and large-scale production is easy to realize; a coating has a large capacity and the coating fastness of active components is high; a good cooperative catalysis effect is formed between duplex metal including copper and iron, the denitrification activity of the catalyst is improved and the anti-H2O performance and anti-SO2 performance ofthe catalyst are also improved. The catalyst provided by the invention has a denitrification efficiency of 90 percent or more in a range of 220 to 510 DEG C and has a good application prospect in a stationary source denitrification direction.

The invention provides a welding method aiming at the butt welding of small caliber resistances. The method is applicable to the welding of small caliber steel pipes, wire rods and rings, and also applicable to the contact butt welding of small caliber nonferrous metals such as aluminium and magnesium wire rods and pipe products, belonging to the welding technical field. As stainless steel is slow in heat dissipation, the invention proposes a welding technique with intermittent heating and continuous and uneven heat dissipation. The high temperature plastic zone in the welding temperature field obtained by the process is narrow and can be less affected by the contact resistances; the welding shrinkage can be controlled accurately by the process; the welding line moulding has a beautiful appearance; the strength and the through-hole both meet the requirements, thus greatly improving the qualification rate of products.

The invention relates to a car steel-aluminum splicing joint welding method. The car steel-aluminum splicing joint welding method is characterized by comprising the following steps that a first workpiece and a second workpiece required to be subject to splicing welding are provided; secondly, the first workpiece and the second workpiece are vertically spliced and clamped; thirdly, a laser cuttingsystem is provided; fourthly, a laser molten brazing welding system is provided, and a laser welding head, a wire feeding head and a laser cutting head in the laser molten brazing welding system are arranged in series and column in the welding direction; fifthly, the laser cutting system is started, and high-energy laser beams formed through focusing of the laser cutting head irradiate the surfaceof the first workpiece vertically; sixthly, the laser molten brazing welding system is started, the laser welding head and the wire feeding head are subject to molten brazing welding along the trackof the laser cutting head, and welding process is finished. The invention further discloses a car steel-aluminum splicing joint welding system. Compared with the prior art, the method and system havethe beneficial effects of being good in welding effect and simple in process.

Disclosed herein is a spark plug comprising an insulative sleeve. A glaze coating is disposed on the exterior surface of the insulative sleeve. The glaze coating comprises a silicate glass, a phosphorous glass, a borosilicate glass, or a combination of the foregoing glasses wherein the glasses are independently modified with a modifier selected from the group consisting of alkali group metals, alkali earth group metals, aluminum, and a combination of two or more of the foregoing modifiers and further wherein the glaze coating has a glass transition temperature (Tg) of 300 to 1000 degrees Celsius.

The invention relates to an extruded aluminum section die used in an automobile condenser tube. The aluminum section die is used for the extrusion forming of the automobile condenser tube. A 'cross core insert' type male die (1) is embedded into a 'fork type' female die (2) to form a 'sub-die', and two or more than two 'sub-dies are inserted into a main body die (3) to form a 'main-slave die' together with the main body die (3). A split flow bridge (1.2) is formed in the center of a feeding face of the 'cross core insert' type male die (1); handle parts (1.4) are formed at the left side and the right side of the split flow bridge (1.2); a groove (2.4) is formed by longitudinally milling the center of the feeding face of the 'fork type' female die (2); a die cavity (2.1) formed by hard alloy blocks (2.2) is inserted into the center of the bottom of the groove (2.4), and the center of the bottom of the groove is transversely milled to form a caulking groove (2.5); the split flow bridge (1.2) separates the groove (2.4) into a front and a rear 'open' split flow holes (1.1); after the 'sub-die' is assembled into the main body die (3), a hermetical welded chamber is formed at the 'open' split flow holes (1.1). The die can reduce the stress on the die during extrusion, enhance the production efficiency of the die, and lead wear resistance of the die to be better.

Provided is a sintered bearing (1), including 3 to 12% by mass of aluminum, 0.05 to 0.5% by mass of phosphorus, and the balance including copper as a main component, and inevitable impurities, the sintered bearing (1) having a structure in which an aluminum-copper alloy is sintered with a sintering aid added to raw material powder, a pore (db, do) in a surface layer portion of the sintered bearing (1) being formed smaller than an internal pore (di).

The present invention provides a photocatalyst film that includes a support; an organic-inorganic composite layer containing, in a graft polymer layer including a graft polymer chain directly bonded to the surface of the support, a crosslinked structure formed by hydrolysis and condensation polymerization of an alkoxide of an element selected from Si, Ti, Zr or Al; and a photocatalytically active layer, in this order, and a method for producing the same.

The invention relates to the use of sintered article of Sn-Mg-Al ternary hydrotalcite in adsorbing hexavalent chromium in water, the article is obtained through sintering hydrotalcite 3-8 hours at 400-550 deg C and can realize high adsorbent capacity for hexavalent chromium.

The invention discloses a device and a method for measuring the concentration of <222>Rn and <220>Rn synchronously by adopting electrostatic collection and solid nuclear track. The measurement device consists of a box body, a third filter, a first aluminum diaphragm, a first solid nuclear track detector, a first filter, a second solid nuclear track detector, a second aluminum diaphragm, a second filter, a high-voltage module, a battery, a base plate and a frame-shaped seal ring. In measurement, the high-voltage module in the measurement device is started up, so that high-voltage electrostatic fields are formed between the inner surface of a first measurement cavity of the measurement device and the surface of the first solid nuclear track detector as well as between the inner surface of a second measurement cavity and the surface of the second solid nuclear track detector respectively, and then the measurement device is placed in a measurement environment to measure the concentration of <222>Rn and <220>Rn in air, and the measurement time is T. After the measurement process, the first solid nuclear track detector and the second solid nuclear track detector are taken off, and are subjected to chemical etching, and the concentration of <222>Rn and <220>Rn in the environment is obtained by calculation.

A aluminum base alloy containing boron and manufacturing method thereof, said alloy exhibiting good mechanical properties (such as high-temperature strength and creep strength) over a long period of time and also having a neutron absorbing capacity owing to boron present therein in the form of a compound without segregation. The alloy contains 0.5–10 mass % of boron with an isotopic element satisfying a relation of ¹⁰B/(¹⁰B +¹¹B)≦30%. said boron being present in the form of a boron compound which is 300 μm or below in size. The alloy is obtained by melting at a temperature in excess of 950° C. and cast at a temperature in the range of 800° C. to 950° C., in such a way that the molten metal is kept for 60–180° seconds until it cools from 950° C. to the casting temperature.

A method for tempering high temperature slag and a mineral cotton production method belong to the metallurgical technical field of steel, ferronickel, ferromanganese, copper and the like. A tempering process is carried out by spraying coal ash, dolomite, aluminum ash and the like by using a heat-resistant spray gun, and the mixture is heated by using a heating agent in an oxygen blowing manner; moreover, by virtue of a sufficient condition of pouring hot slag into a slag tank in kinetics, the used equipment comprises a powder spraying system and an oxygen supply system. According to the components of the hot slag, a corresponding tempering agent is sprayed into the slag and the heating agents such as aluminum ash and the like are added to be in reaction with oxygen; the tempering agent is prompted to be fully mixed with the slag by virtue of flowability of the hot slag pouring into the slag tank so as to quickly form a silicate system; the heating agents are added, so that the slag temperature is not reduced, and a slag tank cover further covers the tank, so that the heat loss is reduced. Thereofe, the component is tempered into the slag blowing slag wool, the temperature of which is proper, and the viscosity is 1-3Pa.s. The problem that the slag is hardly mixed with the tempering agent and a temperature drop happens is solved. A melting furnace (an electric furnace) is not needed for secondary heating, so that the method has a relatively high economical benefit. The slag tank with a top cover is conveyed to a mineral cotton workshop and a travelling crane conveys the slag tank to a pouring site. Then, the slag tank is overturned by using a winch, and a slag fluid in a fixed quantity is controlled to enter a closed and heated blowing tank from an upper opening of the slag tank. The slag fluid in the fixed quantity enters the closed and heated blowing tank from the upper opening of the slag tank, so that the problem that in production of mineral cotton, the slag fluid amount is unstable as the height of the liquid level of a slag tank is different and the pressure of the liquid level is different in a manner that the melt is discharged from the bottom of the tank and the problem that the bottom-discharged slag blowing tank is blocked as the slag temperature is reduced are solved.

The invention discloses novel cleaning fluid. The novel cleaning fluid comprises (a) quaternary amine hydroxide, (b) alcohol amine, (c) solvent, (d) silane (e) boric acid ester (borate) and (f) a star-shaped copolymer containing pigment affinity group. The photoresist stripping fluid takes silane, boric acid ester and the star-shaped copolymer containing pigment affinity group as the main metal corrosion inhibitor, so that the base materials, such as metal aluminum, copper and the like can be effectively prevented from being etched basically in compounding and in use; meanwhile, the stripping fluid can effectively remove the photoresist from a wafer, and can directly rinse the cleaned wafer by water. Therefore, the novel cleaning fluid has wide application prospects in metal cleaning, semiconductor wafer cleaning and other microelectronic fields.

The invention discloses an air-added brick and a preparation method thereof. The preparation method comprises the following steps: mixing portland cement, fly ash, gypsum, aluminum powder paste, silicon dioxide, magnesium oxide and water to form slurry M; pouring the slurry M and carrying out steam pre-oxidization molding to obtain an air-added brick blank N; cutting the air-added brick blank N to form an air-added brick block; carrying out steam curing on the air-added brick block to obtain the air-added brick. The prepared air-added brick has excellent mechanical strength through the synergistic effect of all the raw materials; meanwhile, the method for preparing the air-added brick is simple and the raw materials are easy to obtain.

The invention discloses a concrete expansive agent, which belongs to the technical field of concrete additives. The concrete expansive agent comprises the following raw materials in parts by weight: 20-30 parts of coal ash, 5-15 parts of gypsum powder, 5-15 parts of alumstone, 2-6 parts of aluminum oxygen chamotte, 10-30 parts of calcium sulphoaluminate, 4-12 parts of aluminum slag, 1-5 parts of calcium carbonate powder, 4-12 parts of nano aluminum titanate fiber, 8-16 parts of rosin rock ore sand, 5-15 parts of vermiculite power, 2-6 parts of polypropylene fiber, 3-9 parts of cellulose acetate butyrate, and 3-12 parts of triethanolamine. The concrete expansive agent is high in expansion rate and low in alkalinity, is capable of improving the property of concrete, preventing the concrete from cracking, meanwhile reducing leakage and improving strength, and is low in price, simple in production process, low in cost, and suitable for large-scale production.

A large mode area fiber amplifier suitable for high power applications includes a core region specifically configured to allow for high power operation while also limiting the amount of SBS that is generated. The composition of the core region is selected to include a dopant (such as aluminum) in selected areas to reduce the acoustic refractive index of the core and limit the spatial overlap between the acoustic and optical fields. The acoustic refractive index is also structured so that the acoustic field is refracted away from the central core area. In one embodiment, the core may comprise a depressed index center portion and surrounding ring core area, with the center portion including the aluminum doping and the ring formed to have a diameter less that the phonon decay length for the operating wavelength(s).

The invention discloses a reinforcing pipe sleeve and a clamping sleeve for an automobile radiator and an intercooler, and a use method. The radiator comprises an upper water chamber, a radiator upper aluminum main board, a radiator lower aluminum main board, a lower water chamber, reinforcing pipe sleeves (reinforcing clamping sleeves), radiating mesh belts and radiating pipes, the upper ends of the radiating pipes are connected with the radiator upper aluminum main board, the lower ends of the radiating pipes are connected with the radiator lower aluminum main board, the reinforcing pipe sleeves (reinforcing clamping sleeves) are welded at joints of the radiating pipes and the radiator upper aluminum main board, and the radiating mesh belts are arranged among the radiating pipes. Jolting force and shaking force are buffered, the service lives of the radiating pipes are prolonged, so that the service life of the radiator of each automobile is prolonged, the scrap ratio is reduced, the change rate of parts of the whole radiator is reduced, national expenses of the radiators of tens of millions of automobiles are saved, and national metal resources are saved.

The invention discloses a pipeline transportation means for alumyte. First, placing a raw material crusher on the alumyte mine, alumyte, lime and water are feed in the raw material crusher proportional. The water cut of the aqueous size after grinding is 45-55%; Secondary, sending the aqueous size to the aluminum ore size box in the alumina manufacturer using the pump amd the pipe; and then press with a pressing filter. The water-content coefficient of the filter cake after press is lower than 20%, And then send the filter cake to the aluminum ore bunker stored and dry the water-content coefficient of the filter cake to lower than 10%. The invention can reduce program investments substantial, cost down transport cost and improve the work environment of the alumina manufacturer.