923 results about "Aluminum coating" patented technology

A method of improving the breakdown strength of polymer multi-layer (PML) capacitors is provided and of providing a window in food packaging is provided. The method comprises patterning the aluminum coating, either by selective removal of deposited aluminum or by preventing deposition of the aluminum on selected areas of the underlying polymer film. Apparatus is also provided for patterning metal deposition on polymer films comprising masking for defining regions in which metal is deposited. The apparatus comprises: (a) a rotating drum; (b) a monomer evaporator for depositing a monomer film on the rotating drum; (c) a radiation curing element for curing the monomer film to form a cross-linked polymer film; and (d) a resistive evaporator for depositing a metal film on the cross-linked polymer film. The foregoing elements are enclosed in a vacuum chamber. The masking comprising one of the following: (e1) a web mask provided with openings for depositing the metal film therethrough, the web mask including a portion adapted for positioning between the resistive evaporator for depositing the metal film on the cross-linked polymer film and the rotating drum; or (e2) a rotating element for transferring liquid from a source to the rotating drum, the rotating element adapted to transfer the liquid to the rotating drum after the monomer evaporator for depositing the polymer film and before the resistive evaporator for depositing the metal film.

The invention discloses a positive electrode current collector and a preparation method and an application thereof. The positive electrode current collector is of a multilayered structure and comprises a plastic thin film, wherein the upper and lower surfaces of the plastic thin film are coated with a bonding force enhancement layer, an aluminum metal coating layer and an anti-oxidization layer in sequence. The preparation method comprises the steps of coating the bonding force enhancement layer, the aluminum metal coating layer and the anti-oxidization layer through an evaporation film-coating process in sequence. The application of the positive electrode current collector mainly refers to an application in a lithium ion battery. By virtue of the positive electrode current collector, light weight of the battery can be realized, energy density can be improved, the aluminum coating layer does not fall off easily, and easy oxidization can be avoided.

The invention relates to a method for preparing aluminum-coated anode materials of lithium-ion batteries, which is characterized in that: firstly, soluble nickel salts, cobalt salts, and manganese salts are formulated into salt solutions, and then mixed with ammonia-water-mixed sodium hydroxide or potassium hydroxide solutions React to form precursor particles, wash and dry; add water to the dried precursor particles to prepare a flowable slurry, stir, and add trivalent aluminum salt solution and sodium hydroxide or potassium hydroxide solution dropwise to the slurry at the same time , to obtain the precursor of nickel hydroxide cobalt manganese coated with aluminum; then mix the precursor with lithium source, and then sinter to obtain the positive electrode material of lithium ion battery coated with aluminum. The present invention has the following obvious advantages: raw materials are easy to obtain; coated The process conditions are easy to control, and it is easy to obtain a relatively uniform coating body; the prepared positive electrode material can make the lithium ion battery have superior high temperature stability and better cycle characteristics.

A rigid internal gear 2 of the wave gear device is composed by integrating a tooth-forming ring 12 formed with internal teeth, and a main gear ring 11 into a single body. The tooth-forming ring 12 is manufactured from a ferrous or copper material that has superior strength and abrasion resistance, while the main gear ring 11 is manufactured from a lightweight material, such as an aluminum alloy. The outer circumferential surface of the tooth-forming ring 12 is aluminized to form a dispersed aluminum coating 15, before the tooth-forming ring 12 is cast within the main gear ring 11 so as to integrate the main gear ring 11 and the tooth-forming ring 12. Both parts are reliably integrated so that a large amount of torque can be transmitted, whereby realizing a rigid internal gear that is lighter than conventional models.

The invention relates to a method for preparing an Al-Al2O3 composite coating on the surface of magnesium alloy, belonging to the technical field of metal surface treatment. The Al/Al2O3 composite coating prepared on the surface of the magnesium alloy by a calorization-oxidation method has high corrosion resistance and rigidity. The method comprises the following main steps of: firstly, coating an aluminum coating to the magnesium alloy, and then electrochemically oxidizing the aluminum coating to form an aluminum oxide film layer having extremely high corrosion resistance and rigidity, wherein a cold spraying method or a molten-salt aluminum electroplating method is used in the preparation process of the aluminum coating of the magnesium alloy, and common anodic oxidization and plasma anodic oxidization are used for the oxidation of the aluminum coating. By coating the aluminum coating to the surface of the magnesium alloy to carry out calorization treatment and then carrying out electrochemical anodic oxidization, the invention enhances the comprehensive protective performance of the surface of the magnesium alloy, and the Al/Al2O3 composite coating prepared on the surface of the magnesium alloy has the advantages of large bonding strength, high rigidity, good corrosion resistance and the like, thereby being the ideal protective coating for the magnesium alloy.

The invention provides a method for preparing multi-level porous channel beta zeolite, and belongs to the technical field of preparation and application of the zeolite. The method is characterized in that: carbon grains which are generated under restriction of the sequent meso-porous channels are taken as a hard mold board, and added with a small molecular organic ammonium soft mold board to convert the meso-porous silicon-aluminum coating the carbon grain into the meso-porous beta zeolite in situ, and the meso-porous beta zeolite is calcined to remove the soft and hard mold boards so as to obtain the multi-level porous channel containing beta zeolite. Compared with the zeolite obtained by directly taking the meso-porous carbon as the mold board, the multi-level porous channel beta zeolite synthesized by the method does not need to remove the meso-porous silicon-aluminum first and then introduce the silicon-aluminum species synthesizing the zeolite, thereby reducing complicated working procedures as well as saving raw materials. The method has the advantages of greatly lowering diffusional resistance, reducing secondary reaction, and having better catalytic property and huge potential application values in fields such as petrochemical industry, fine chemical industry, and the like.

The invention discloses a denitration catalyst and a preparation method thereof, the catalyst takes pretreated cordierite honeycomb ceramics as a matrix, a silicon-aluminum coating, a composite coating and an active component are coated on the surface of the matrix, by measuring gross weight of the catalyst, the catalyst contains 80-90wt% of cordierite honeycomb ceramics, 2-9wt% of silicon-aluminium coating, 3-10wt% of composite coating, and 0.01-15wt% of active component, wherein the active component can be Mn and Fe; by measuring gross weight of the silicon-aluminum coating, the silicon-aluminum coating comprises 10-50wt% of silica, and 50-90wt% of alumina; by measuring gross weight of the composite coating, the composite coating contains 40-80wt% of titanium dioxide, 5-35wt% of ZSM-5 molecular sieve, and 10-40wt% of auxiliary agent; wherein the auxiliary agent is selected from one or more of cerium oxide, zirconia or lanthana. The denitration catalyst has the advantages of large coating load capacity, high firmness, good poison-resistance performance and activity, and wide reaction temperature window; and the preparation method is simple and is suitable for industrial application.

Shielding of a particular material and geometry is interposed between a radio frequency identification (“RFID”) antenna transceiver and a zone to be monitored by the antenna. The shielding has an aperture therein that to some extent defines a degree of focusing of the radio frequency (“RF”) field associated with the antenna. RFID tags having appropriate RFID circuitry are only detected by the antenna when they pass within the focused RF field. The shielding is formed of a thin metalized plastic material, such as film used in forming anti-static material for storage of sensitive electronics. One particular formulation is primarily polyethylene film with an aluminum coating or layer thereon.

A method for coating and an associated assembly including such a coating are provided. The assembly includes a workpiece defining a weld portion, such as a friction weld joint and a heat affected zone. A coating is disposed on the weld portion to at least partially cover the weld portion, thereby providing enhanced corrosion resistance to the workpiece.

The invention designs a method for preparing nanometer aluminum or nanometer aluminum coating in an electro-deposition form by using an ion liquid/additive system. The method is characterized in that: ion liquid and anhydrous aluminum trichloride are mixed into a low-temperature electrolyte and suitable additives are added for preparing the ion liquid/additive system. A processed substrate is taken as a deposition cathode; the direct current electro-deposition is adopted for preparing the nanometer aluminum or nanometer aluminum coating; and the size of the aluminum grains is adjusted according to requirements. According to the method, the problems of high cost and small output of the present technology for producing the nanometer aluminum are solved; the adopted ion liquid is conventional ion liquid and is characterized by wide source, low cost, high conductivity, wide electrochemical window and being non-volatile and environment-friendly; the suitable additives are used, so that the high-quality nanometer aluminum or nanometer aluminum coating obtained in the conventional ion liquid is realized; the obtained aluminum deposited coating is compact, smooth and flat; a nanometer material can be obtained by using the ion liquid/additive system at lower temperature; the reaction is easy to control; the energy consumption is low; the obtained nanometer aluminum is high in quality and high in current efficiency; the size of the nanometer aluminum can be effectively controlled by adjusting the dosage and formula of the additives; the process is simple; the cost is low; and the application prospect is better.

The invention relates to titanium dioxide with high water dispersibility and a coating process, belonging to the chemical industry field, which solves the technical problem that titanium dioxide which is produced by a current process has lower dispersibility. The coating process of titanium dioxide with high water dispersibility of the invention comprises the steps of beating, silicon coating, aluminum coating, scouring, drying and disintegrating and the like, wherein sodium aluminate solution is used to conduct coating in the aluminum coating step, and sodium silicate solution is used to conduct coating in the silicon coating step, wherein the molar ratio of sodium aluminate solution usage which is calculated with A1 2 O3 and sodium silicate usage which is calculated with SiO 2 is 1:4. The process of the invention can be used to prepare titanium dioxide with high water dispersibility, which has widespread application prospect, and the Haegeman index of titanium dioxide which is prepared can reach over 7.0 in emulsion paint.

The invention discloses stripping solution for a sintered neodymium-iron-boron surface aluminum coating. The stripping solution comprises sodium hydroxide serving as a corroding agent, sodium carbonate serving as an auxiliary salt, a complexing agent capable of promoting the dissolution of metallic aluminum, a corrosion inhibitor for retarding the corrosion of a matrix, and a surfactant for uniformly dissolving an aluminum coating. Compared with the prior art, the stripping solution for the sintered neodymium-iron-boron surface aluminum coating has the advantages of quickly and uniformly stripping the sintered neodymium-iron-boron surface aluminum coating and simultaneously reducing the damage to the sintered neodymium-iron-boron matrix due to the reasonable design of components and content of the stripping solution; and besides, the stripping solution has the characteristics of low production cost, high stability and long service cycle.

The invention relates to a method for preparing a composite high-speed steel wear-resistant layer on the surface of an aluminum alloy. First, a high-speed steel coating with a thickness of 0.2 mm to 1.5 mm is thermally sprayed on the surface of an aluminum alloy, and then the thermally sprayed high-speed steel is processed by friction stir processing. The coating is evenly inlaid and fused in the aluminum alloy surface layer to form a good wear-resistant layer, and a metallurgical bond is formed between the coating and the substrate. In the invention, the thermal spraying coating is evenly inlaid and fused in the surface layer of the aluminum alloy through friction stirring processing to form a good wear-resistant layer, and a metallurgical bond is formed between the coating and the substrate. The hardness of the wear-resistant layer of the high-speed steel obtained by the invention is greater than 520HV, and the bonding strength is greater than 70MPa.

A coating is stripped off a work piece by applying a chromous and aluminiforous coat directly on the work piece and stripping the work piece with an alkaline solution containing a strong oxidant. A single-compartment system can be used, which includes a spray chamber including a circulatory spray-cycle system; a support for holding the work piece; and a media container connected to the spray chamber via a media circulation system.

The invention relates to a chemical catalyst preparation technology, and aims to provide a catalyst for low-temperature catalytic combustion of volatile aromatic hydrocarbons and a preparation method thereof. The catalyst is based on cordierite honeycomb ceramics, and the surface of the base body is sequentially provided with an aluminum coating, an additive coating and an active component layer from the inside to the outside; based on the total amount of the catalyst, the catalyst contains 85-90 wt% of the cordierite honeycomb ceramics, 8-12 wt% of the aluminum coating, 1-5 wt% of the auxiliary coating, and 0.05-0.5 wt% of the active component layer; wherein, the composition of the aluminum coating is alumina; the composition of the auxiliary coating is a rare earth metal oxide; The constituents of the active component layer are noble metals. The preparation process of the invention is simple, the preparation raw materials are easy to obtain, the specific surface area is large, the cost is low, and the catalytic combustion reaction of benzene series such as toluene has high catalytic activity; the active component has strong binding force with the matrix, and is not easy to fall off and crack It can still maintain high activity under high space velocity airflow and thermal shock.

A method for spot electroplating aluminum onto a metallic substrate without submersion or dipping of the metallic substrate in an electroplating bath, the method comprising: (i) spot coating said metallic substrate with an aluminum ion-containing electrolyte contained within a protective structure possessing at least one aperture, and releasing said electrolyte from said at least one aperture onto said metallic substrate to form a coating of said electrolyte thereon, wherein said electrolyte is in contact with an anode; and (ii) applying a voltage potential between the anode and metallic substrate polarized as cathode when the aluminum ion-containing electrolyte is released from said aperture and forms a coating on the metallic substrate, to produce a coating of aluminum on the substrate. Devices, such as brush and ball pen plating devices, for achieving the above-described method are also described.

The invention relates to a method for electroplating inorganic molten salt on surface of magnesium and magnesium alloy with aluminum, which belongs to the technical field of metal surface treatment. The method comprises a step of preplating a zinc layer as a substrate and a step of electroplating inorganic molten salt with aluminum. The step of preplating the zinc layer as the substrate comprises a step of immersion-plating the zinc layer and a step of electroplating the zinc layer. The step of electroplating the zinc layer is performed in an inorganic molten salt system, wherein anhydrous aluminum chloride is main salt, and sodium chloride, potassium chloride or a mixture of the two is a main complexing agent. An aluminum coating obtained by the method is complete, dense, uniform and bright, is firmly combined with a matrix, can be individually used as a protective layer, and can be prepared into a surface functional layer with better corrosion resistance, better wear resistance and high hardness through subsequent treatment. The whole process of the method has the advantages of simple process, cheap equipment, friendliness to environment, and the like.

The invention discloses a high-firmness honeycomb ceramic carrier and a preparation method thereof. Cordierite honeycomb ceramic is used as a base body; an aluminum oxide coating layer and a composite coating layer are arranged on the surface of the base body in sequence; by the total weight of the honeycomb ceramic carrier, the honeycomb ceramic carrier contains 85-95 percent of cordierite honeycomb ceramic, 2-7 percent of the aluminum oxide coating layer and 3-8 percent of the composite coating layer; by the total weight of the composite coating layer, the composite coating layer contains 40-80 percent of titanium dioxide, 5-35 percent of silicon dioxide, 1-10 percent of aluminum oxide and 10-40 percent of an auxiliary. The preparation method comprises the following steps: (1) immersing the cordierite honeycomb ceramic base body subjected to acid treatment into alumina sol for treatment, taking out the cordierite honeycomb ceramic base body, blowing away residual liquid, and drying and roasting to obtain the cordierite honeycomb ceramic base body loaded with the aluminum oxide coating layer; (2) soaking the carrier obtained by the step (1) in composite coating layer slurry for treatment, taking out the carrier, blowing away the residual liquid, and drying and roasting to obtain a final product. The coating layer load of the honeycomb ceramic carrier is large, the firmness is high, and the preparation technology is simple; the mechanical strength of the base body is not damaged; the high-firmness honeycomb ceramic carrier is suitable for industrial application.

The invention belongs to the field of anti-fake materials, and particularly relates to a colorful holographic numerical code information thermoprint foil and a preparation method thereof. The colorful holographic numerical code information thermoprint foil comprises a base material layer, a released layer, an imaging layer, a holographic image layer, a gravure ink protecting layer, an aluminum coating layer, a printing layer and a gum, wherein a coating layer is arranged between the aluminum coating layer and the printing layer; the base material layer, the released layer, the imaging layer, the holographic image layer, the gravure ink protecting layer, the aluminum coating layer, the coating layer, the printing layer and the gum are successively connected from top to bottom. The holographic numerical code information thermoprint foil integrates the characteristics of printing ink, digital printing and mould pressing holographic thermoprint foil, an anti-fake characteristic of the original anti-fake product is integrated into a whole, the colorful holographic numerical code information thermoprint foil has the high information carrying capacity and randomness, the fully copy and imitation are impossible, technologies such as aluminum washing and printing ink are added, the applicability, the beauty, an anti-fake property and the like are added, and manufacturers and consumer benefits of high-quality well-known goods are protected.

The disclosure relates to a chamber component or a method for fabricating a chamber component for use in a plasma processing chamber apparatus. The chamber component includes a polished high purity aluminum coating and a hard anodized coating that is resistive to the plasma processing environment.

The embodiment of the invention provides electrochemical aluminum for stamping gold on an ultraviolet (UV) glazing oil surface. The electrochemical aluminum comprises a base film layer, a stripping layer, a colorable information layer, an aluminum coating and a bonding layer; the base film layer 1 is made of a polyethylene terephthalate film; the stripping layer is positioned on the base film layer and made of a fluorine-containing water-based wax material prepared by an emulsified paraffin method; the colorable information layer is positioned on the stripping layer and prepared from synthetic resin and at least two toner dyes; full series laser anti-counterfeiting information is positioned and die-pressed on the colorable information layer; and the bonding layer is positioned on the aluminum coating and prepared from acrylic mixed resin added with olefin surfactant. The embodiment of the invention also provides a preparation method for the electrochemical aluminum for stamping the gold on the UV glazing oil surface. According to the embodiment, an electrochemical aluminum god stamping material prepared from a special stripping agent and adhesive at a low temperature is excellent in performance and suitable for most printed materials of which the surfaces are provided with UV glazing oil.

The invention discloses a glass door body, which comprises an outer door plate, an inner door plate, and a door frame. The outer door plate is made of glass; an aluminum coating is arranged on the inner side of the outer glass plate; the door frame is adhered to the aluminum coating of the outer glass plate through binders; and the inner door plate is adhered on the inner side of the door frame through binders. The hidden binding structure of the door frame and the glass panel is adopted, and the glass plate is adhered to the door frame, so the door body structure is stable and reliable and the difficulty in controlling the door frame assembly quality is reduced. The whole door body is fine and beautiful, top-grade and fashionable, and caters to the consuming taste of the new trend group for pursuing the quality of life. The glass door body is applied to refrigerators and cocktail cabinets, and can be also widely applied to sterilized cupboards and other household appliances.

The invention discloses a laser electrolytic aluminum coating composition and a preparation method thereof. The laser electrolytic aluminum coating comprises the following components by weight percent: 13-28% of acrylic resin, 2-7% of nitrocellulose resin, 0-5% of styrene maleic anhydride resin, 0-4% of aldehyde ketone resin, 0-1% of auxiliary agent and 65-80% of solvent. The preparation method comprises the steps of: putting the solvent into a reaction kettle, and heating to 40-70 DEG C when stirring; putting the nitrocellulose resin into the reaction kettle, and stirring; sequentially putting the rest resins into the reaction kettle, and further stirring; after all the resins which are put into the reaction kettle are completely dissolved, putting the auxiliary agent into the reaction kettle, and cooling after dispersing to obtain the laser electrolytic aluminum coating. Compared with the prior art, the laser electrolytic aluminum coating disclosed by the invention is environment-friendly, low in cost, good in application adaptability and excellent in performance.

The invention relates to the field of surface coating protection and particularly relates to a method for preparing a surface protecting coating layer of a light weight alloy. The method comprises the steps of: firstly, preparing a pure aluminum coating layer on the surface of the light weight alloy in a cold spraying way by adopting pure Al or ultra-pure Al powder, wherein the pure aluminum coating layer serves as a bottom layer of the protecting layer; and secondly, performing surface polishing and anodic oxidizing on the pure aluminum coating layer to prepare an aluminum oxide thin film on the surface of the pure aluminum coating layer, wherein the aluminum oxide thin film serves as a surface layer of the protecting coating layer. After anodic oxidization, the aluminum oxide thin film with excellent properties can be generated on the surface of the pure aluminum coating layer, and the corrosion resistance of the thin film is far better than that of another aluminum oxide thin film which is formed after anodizing an aluminum alloy; and the coating layer is especially suitable to large-scale integrated circuit equipment, so that the equipment is maintained to be ultra-clean under the environments with strong corrosion and plasma compact. The light weight alloy is a magnesium alloy, a magnesium alloy or an aluminum alloy. The method is applicable to the magnesium alloy, the magnesium alloy and the aluminum alloy, and is capable of enhancing the corrosion resistance of the magnesium alloy, the magnesium alloy and the aluminum alloy.

The invention relates to an aeroengine case seam allowance size repairing method. The porosity and hardness of a coating and the content of oxides in the coating can be effectively adjusted by controlling the plasma spraying power and the heating process of spraying powder during flying, and heat stress of the coating is reduced. The hardness and thermal expansion coefficient of the prepared nickel-aluminum coating are equivalent with those of a case, the bonding strength of the coating is far higher than the stress strength of a case seam allowance under the given working condition, and the use working condition of the aeroengine case can be met.