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565results about How to "Improve unevenness" patented technology

Substrate Provided with Transparent Conductive Film for Photoelectric Conversion Device, Method for Manufacturing the Substrate, and Photoelectric Conversion Device Using the Substrate

Provided in this invention is a low-cost substrate provided with a transparent conductive film for photoelectric conversion device, which can improve performance of the photoelectric conversion device by enhanced light confinement effect achieved with effectively increased surface unevenness of the substrate. A method for manufacturing said substrate and a photoelectric conversion device using said substrate which can show improved performance are also provided. The substrate provided with the transparent conductive film for the photoelectric conversion device comprises a transparent insulating substrate and a transparent electrode layer containing at least zinc oxide deposited on the transparent insulating substrate, wherein the transparent electrode layer is composed of a double layer structure wherein first and second transparent conductive films are deposited in this order from a substrate side. The transparent conductive film has an average film thickness of 10-500 nm, and the second transparent conductive film has an average film thickness of 300-1,500 nm. The average film thickness of the second transparent conductive film is larger than that of the first transparent conductive film, and an average height difference of the unevenness on the surface of the second transparent conductive film is 10-300 nm, which is larger than that of the first transparent conductive film.
Owner:KANEKA CORP

Novel method for preparing polyaniline composite conductive fabric

InactiveCN102337679AAutomatic elimination of influenceAccurate measurementPhysical treatmentFiberConductive polymer
The invention relates to a novel method for preparing a polyaniline composite conductive fabric. The novel method for preparing a polyaniline composite conductive fabric is characterized in that a conductive fabric with good conductive properties is prepared from a chemical fiber fabric as a matrix material and polyaniline as a conductive material through an in-situ polymerization method (also known as an in-situ adsorption polymerization method). The novel method for preparing a polyaniline composite conductive fabric adopts an ultrasonic dipping treatment process as an auxiliary process of a base fabric dipping process adopting aniline. Therefore, the novel method for preparing a polyaniline composite conductive fabric has good surface modification effects on a base fabric, is beneficial for depositing a conductive material on fiber surfaces of the base fabric in polymerization and enabling the conductive material to permeate into fibers of the base fabric, and improves conductivity and conductive stability. A conductive fabric prepared by the novel method has high conductivity and good environmental stability, is easy for synthesis, and keeps physical and mechanical properties belonging to fabrics on the basis of acquirement of conductive properties, wherein surface resistance R of the conductive fabric is reduced to a value of 1 to 5 kilo-ohm.
Owner:WUYI UNIV

Acid picking method for extracting mineral from serpentine

A method for abstracting minerals from serendipities belongs to the technical field for abstracting metal compounds from ores or ore concentrates through a wet method. The steps of the method are based on a conventional method for using an acid leaching method to abstract magnesium and silicon from the serendipities and compound alternative and circulating acid leaching is carried out for the serendipities, namely the serendipities is acid-leached. The method comprises: processing after dividing the acid leaching into acid leaching solution and acid leaching slag according to leaching targets and adding acid leaching additive which contains fluorine to intensify acid-leaching reaction, thereby, the extraction rate of the magnesium from the serendipities can be increased to more than 99%, and simultaneously the purity of silicon dioxide in filter residue is increased to more than 90%, and repeated reuses of pickle liquor and cleaning mixture in the whole acid leaching process are realized through circulating and alternative acid leaching. The whole technical process does not produce discard solution, waste residue and other contaminants completely, the cost of production is lowered, and the developing value of the serendipities is increased.
Owner:福建省盛龙化工有限公司

Arc welding-brazing method for titanium-aluminum dissimilar alloy TIG (tungsten inert gas) arc preheating

The invention provides an arc welding-brazing method for titanium-aluminum dissimilar alloy TIG (tungsten inert gas) arc preheating. A TIG preheating welding gun is introduced to common arc welding, a titanium-aluminum connector is locally preheated by heating a copper backing plate with a TIG preheating arc, V-shaped grooves with truncated edges are processed on two sides of each of a titanium alloy plate and an aluminum alloy plate, the copper backing plate is additionally padded at the butt joint of the connector, the TIG arc is used for heating the back of the copper backing plate, areas close to the titanium-aluminum connector are preheated by means of heat conduction of the copper backing plate, and uniform movement of the TIG preheating arc and a main arc is ensured during welding. The arc is used as a heating source, the requirement on cleaning the surface of a workpiece can be lowered by the aid of a cathode atomizing function of the arc, growth of intermetallic compounds of titanium-aluminum brazing interfaces can be hindered by the aid of an electromagnetic stirring function of the arc, appearance and distribution of the intermetallic compounds are improved, a high-strength titanium-aluminum welding connector can be formed, the equipment cost is low, practicability is high, and the arc welding-brazing method is convenient in popularization and application.
Owner:HARBIN INST OF TECH

Friction stir welding process for combining back surface heating with frontal surface chilling

The invention discloses a friction stir welding process for combining back surface heating with frontal surface chilling. The friction stir welding process comprises the following steps: a workpiece to be welded is fixedly clamped; heaters are arranged on two sides of a welding line area; a chilling shielding gas protective cover for moving along with a stirring head is arranged on the outer side of the stirring head; the heaters are started to heat the back surface of the workpiece to be welded, so that the temperature of the upper surface of the workpiece to be welded is not higher than 250 DEG C; the chilling shielding gas protective cover is filled with the chilling shielding gas, and the covering range includes the welding line area and the upper surface area of the workpiece to be welded rightly above the heaters; friction stir welding equipment is started, and the rotating stirring head is controlled to insert in the workpiece to be welded; the shaft shoulder end surface of the stirring head is continuously pressed down by a section of distance, and the stirring head is stopped until a set inserting depth is reached; the stirring head is controlled to continuously rotate by a period of time under the set inserting depth, so that the welding line area of the workpiece to be welded is fully preheated to reach an excellent plastic state; and the stirring head is controlled to finish the welding work of the welding line area at a set welding speed.
Owner:SHENYANG AEROSPACE UNIVERSITY

Punching die based on uneven resistance of deep-drawing rib

InactiveCN101700548ASpeed up the flowImprove the quality of stretch formingShaping toolsPunchingDeep drawing
The invention discloses a punching die based on uneven resistance of a deep-drawing rib, belonging to the technical field of metal plasticty machining. The punching die comprises a convex die, a concave die, a blank holder, a convex die base plate, a lower die plate, a guide post, a guide sleeve, a guide plate and a convex die gasket, wherein the convex die and the convex die base plate are fixedly connected with each other, the convex die base plate is fixedly arranged on the lower die plate, the lower die plate is connected with a downwardly-arranged motion mechanism of a pressure machine, the blank holder is connected with the pressure machine, the guide plate is arranged in the blank holder and contacted with the convex die, the guide post and the guide sleeve are respectively arranged in the blank holder and the concave die, and the positions of the guide post and the guide sleeve are matched with each other, the concave die is fixedly connected with an upper slider of the pressure machine, and two sides corresponding to the positions of the convex die are respectively provided with two deep-drawing ribs with variable resistance and two corresponding lower grooves on a material pressing surface of the blank holder. By adopting the invention, the flow evenness of metals of a flange part and a side wall part of box-shaped components with inclined bottom surfaces is remarkably improved, and local crushing or wrinkling conditions caused by even increase or even decrease of the resistance of the deep-drawing ribs are avoided.
Owner:SHANGHAI JIAO TONG UNIV +1

Method and device for massively producing graphene conductive slurry and prepared graphene conductive slurry

The invention provides a method and a device for massively producing a graphene conductive slurry and a prepared graphene conductive slurry. The method comprises the following steps of a) mixing graphite and a solvent, carrying out at least one low-speed mixing processing or / and low-speed shearing processing and acquiring a graphite dispersion liquid; b) carrying out at least one sanding processing on the graphite dispersion liquid and acquiring a preliminary stripped graphene dispersion liquid; c) carrying out at least one high pressure homogenization processing or / and ultrasonic processing on the preliminary stripped graphene dispersion liquid, and acquiring a single layer or a small layer of graphene dispersion liquid; d) dissolving a dispersing agent in a solvent to obtain a dispersantsolution; and e) mixing the single layer or the small layer of graphene dispersion liquid and the dispersant solution, carrying out at least one sanding processing, and acquiring the graphene conductive slurry. By using the method, under the condition of environmental protection, the stable and uniformly-dispersed graphene conductive slurry with a high concentration is acquired. And the device issuitable for the continuous automatic production of the high-concentration and high-stability graphene conductive slurry.
Owner:北京地泽科技有限公司

Microorganism and electric field combination reinforcing method for liquefiable foundation

A microorganism and electric field combination reinforcing method for a liquefiable foundation comprises the following steps of a, drilling holes in the foundation to be reinforced, arranging grouting pipes a and b in rows and at intervals, and connecting the grouting pipes a with a cathode of a direct current power supply 4 into cathode grouting pipes 1 and connecting the grouting pipes b with an anode of the direct current power supply 4 into anode grouting pipes 2 through conducting wires 3; b, opening a first valve 8, and injecting a urease-producing microorganism solution 5 into the stratum through the cathode grouting pipes 1; c, when grouting begins, closing a switch 6 of the direct current power supply 4, forming a direct current electric field in a region between the cathode and anode grouting pipes, and after the action of the electric field finishes, closing the first valve 8; d, opening a second valve 8, injecting a cement solution 7 into the stratum through the cathode grouting pipes 1, closing the second valve 8, and standing for 8-12h; and e, exchanging the cathode and the anode which are connected with the grouting pipes a, repeating the steps b to d to carry out a new round of reinforcing on the foundation, pulling out all the grouting pipes after grouting is carried out on the place for required times, and pumping underground water to carry out sewage treatment.
Owner:NANJING FORESTRY UNIV
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