999 results about "Anodizing" patented technology

This invention encompasses methods of producing a colored oxide layer on an aluminum material by anodizing the aluminum material in an electrolyte comprising water, sulfuric acid and oxalic acid. The anodizing step comprises passing at least two sequential current densities through the electrolyte. Methods of making and using article with a colored oxide layer on an aluminum material make by the methods disclosed herein are also disclosed.

A planographic printing plate precursor comprising: an aluminum substrate which has been subjected to a roughening treatment and an anodizing treatment; and a photosensitive layer which provided on a surface of said substrate, and which contains an infrared absorbing agent and a water-insoluble and alkali aqueous solution-soluble polymer compound, and whose solubility in an alkali developing solution varies by infrared laser exposure, wherein said substrate is obtained by electrochemically roughening an aluminum alloy plate which contains a trace amount of certain elements to an aluminum alloy of high purity.

A printed circuit board and manufacturing method thereof are disclosed. By use of a method of manufacturing a printed circuit board, which uses a metal substrate as a core member and has an electronic component embedded in the metal substrate, mainly comprising: (a) anodizing at least one surface of the metal substrate to form at least one insulation layer, (b) forming an inner layer circuit on the at least one insulation layer, (d) placing chip bond adhesive in correspondence with a position where the electronic component is to be embedded and mounting the electronic component, and (e) forming an outer layer circuit in correspondence with a position where the inner layer circuit is formed and with positions of the electrodes of the electronic component, and which may further comprise an operation (c) of etching the metal substrate to form a cavity in correspondence with a position where the electronic component is to be embedded between the operations (b) and (d), a metal substrate, such as that of aluminum, etc., is rendered electrically insulating by applying an anodizing process and is used as a core member in a printed circuit board, so that bending stiffness and heat-releasing property are improved; wet etching can be applied, so that manufacturing costs are reduced; and a chip bond adhesive, die attach film, or nonconductive paste, etc., that is high in thixotropy is used in embedding the electronic component, so that the degree of precision may be increased for the position and height of the electronic component when embedding the electronic component.

Disclosed is a condition-indicating ultrasonic surgical device and method of making the same in which an ultrasonic surgical instrument (10) has at least a portion of which has an outer surface which includes a color layer formed by anodizing or chemical processing. The color layer has a predetermined thickness wherein the thickness, and thereby the color, of the layer is affected by damage to the instrument to provide an indication that would otherwise be imperceptible by visual inspection.

The invention relates to an aluminum alloy anodizing line treatment process. The aluminum alloy anodizing line treatment process comprises a functional trough system and water washing trough systems arranged between functional troughs. The functional trough system is arranged along the flow direction of washing water in a manner that an upstream functional trough is compatible with a downstream functional trough, and the water washing trough systems are arranged in an overall phase-reversing in-series-connection manner. According to the aluminum alloy anodizing line treatment process, a mode in which a flowing water washing tank is separately configured for each functional trough in the traditional anodizing line is changed. Since all water washing troughs are connected in series in a phase-reversing manner, the number of the water inlets and outlets is greatly reduced and the water consumption is decreased from 25.0-35.0 tons per ton material to 5.0-6.0 tons per ton material and the water is saved by more than 80%. The treatment process disclosed by the invention has the advantages of low production cost, high efficiency and environmental friendliness and is suitable for industrial application.

In the production of thin film transistor (TFT), a gate insulating film is formed to cover an active layer, a titanium nitride film is formed on the gate insulating film, and an aluminum film used as the gate electrode is formed on the titanium nitride film. The resulted configuration prevents the etching of the aluminum film from the insulating film side even if the etchant of aluminum enters the recessed portion at the edge of the active layer during the patterning of the gate electrode. Also in the anodizing process, when an oxide film is formed on the surface of the aluminum film, the oxidation of aluminum from the gate insulating film side is prevented even when the electrolyte solution enters the recessed portion at the edge of the active layer.

A membrane structure is provided. The membrane structure includes a polymer layer having a plurality of pores; and a ceramic layer disposed on the polymer layer. The ceramic layer has a plurality of substantially unconnected pores. Each of the substantially unconnected pores is in fluid communication with at least one of the pores of the polymer layer. A method of manufacturing a membrane structure is provided. The method includes the steps of providing a polymer layer having a plurality of pores; and disposing a ceramic layer on the polymer layer. Disposing a ceramic layer includes depositing a metal layer on the polymer layer; and anodizing the metal layer to convert the metal layer into a porous layer. At least one of the depositing step and the anodizing step is performed as a continuous process. Alternatively, at least one of the depositing and the anodizing step is performed as a batch process.

This invention is to reduce the influence of a gas generated by an anodizing reaction. A silicon substrate (101) to be processed is horizontally held. A negative electrode (129) is arranged on the upper side of the silicon substrate (101), and a positive electrode (114) is brought into contact with the lower surface of the silicon substrate (101). The space between the negative electrode (129) and the silicon substrate (101) is filled with an HF solution (132). The negative electrode (129) has a number of degassing holes (130) to prevent a gas generated by the anodizing reaction from staying on the lower side of the negative electrode (129).

A superhydrophobic surface with dual microscopic structures features that the micron-class arrays and nano-class arrays are prepared on the surface of polymer film through microprocessing and anodizing. The length, width, height and gap of microposts in array are 10-100 microns for micron array and 10-100 nm for nano-array. Its template can be cyclically used.

The present invention features that the composite ceramic film consists of two layers, the inner layer film of silicon-containing composite Mg-Al oxide and the outer layer film of Mg-Al silico-oxide of 5-70 micron thickness each. The composite ceramic film is formed through surface treatment, degreasing, neutralizing, water washing, micro-arc anodizing, water washing, drying, closing treatment or painting. The composite ceramic film has no holes and cracks, high corrosion resistance, high wear resistance and smooth surface.

Article of cookware has upright walls and surrounding bottom-cooking surfaces that are both formed from titanium or an alloy thereof at a first thickness. The cooking vessel also has a thicker bottom formed of a material more heat conductive than titanium, thus allowing the vessel to be of significantly lighter weight, or have superior uniformity of heating due to a thicker bottom formed of a more heat conductive materials. The bottom is optionally formed of anodized aluminum as the titanium walls withstand the corrosive environment of the anodizing bath.

The invention relates to a technology of mixed acid anodizing high hardness wide-bore thick-film, first the anodizing solution is mixed with the phosphoric acid and the oxalic acid preparation; then the alkaline solution removes the oxide layer of specimen surface; and then acidic solution neutralizes the surface residue, followed by electrochemical polishing treatment; more the anode is oxidized to prepare the porous alumina, finally the specimen of anodization in the phosphoric acid solution process the reaming. The invention relates to a method of the mixed acid with the phosphoric acid and the oxalic acid as the electrolyte to form 20-45um porous alumina film; the anode is oxidized by the phosphoric acid to reaming, the aperture increased to 80-140nm; the temperature of the anodization mixed the oxalic acid is higher greatly, to save the energy; the micromesh of the mixed acid anodic alumina film fills in the PTFE, MoS2, carbon nano fibers, zinc stearate, and other solid lubricants, prepared to self-lubricating materials, the invention is worthy of spreading to application.

A manufacturing method including: forming a boehmite film on a roughened surface of an aluminum foil; forming a particulate gel of a valve metal oxide on the surface of the aluminum foil on which the boehmite film is formed; then carrying out heat treatment for forming particulate valve metal oxide; and anodizing.

A casing of electronic devices comprises a plastic casing, a metal coating and an oxidized layer formed on the surface of the metal coating by anodizing. The method for manufacturing the casing of electronic devices, including the following steps: (1) ejecting and forming the above plastic casing; (2) forming in metal coating on the surface of the plastic casing; (3) anodizing the plastic casing with the metal coating. In such a way, the casing of electronic devices has a metal sense and a strong erosion resistance. The method can continue the tinctorial processing after the step (3) to acquire the required color or pattern.

The embodiments described herein relate to forming anodized films that have a white appearance. In some embodiments, an anodized film having pores with light diffusing pore walls created by varying the current density during an anodizing process is described. In some embodiments, an anodized film having light diffusing micro-cracks created by a laser cracking procedure is described. In some embodiments, a sputtered layer of light diffusing aluminum is provided below an anodized film. In some embodiments, light diffusing particles are infused within openings of an anodized layer.