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506results about How to "Solve the problem of easy falling off" patented technology

Method for electrolyzing aluminum from ionic liquid on hyper-gravity basis

InactiveCN101760758AEnhance convection and diffusion processesFacilitates ion mass transferPhotography auxillary processesProcess efficiency improvementIonAluminum matrix composites
The invention discloses a method for electrolyzing aluminum from an ionic liquid on a hyper-gravity basis and belongs to the field of metal electrodeposition under special conditions. The method of the invention comprises the following step: electrolyzing aluminum and subjecting an electrolytic tank to centrifugal rotation to generate a hyper-gravity field simultaneously, wherein aluminum sheets or aluminum-based composite material constitute the anode; stainless steel sheets or aluminum sheets constitute the cathode; the ionic liquid of chloroaluminate salt constitutes the electrolyte; and nitrogen or argon constitutes the protective gas. Accordingly, the electrolyzation of aluminum can be achieved in the hyper-gravity field, so as to obtain an aluminum deposition layer. The invention has the following advantages: the hyper-gravity field is capable of enhancing the processes of convection and dispersion, improving the mass transfer of ions, increasing the rate of deposition and reducing the preparation period of aluminum; finer aluminum grains and denser deposition layers can be obtained in the hyper-gravity field; moreover, the adhesion of the aluminum deposition layers can be obviously improved by the contingent mechanical effects, thereby preventing the dendritic crystal aluminum from being generated; the method can solve the problem that the deposition layer is likely to drop off; and no gas is generated at the anode during the refining process, thereby preventing the environmental pollution.
Owner:BEIJING UNIV OF CHEM TECH

Key

The invention relates to a key, which comprises a bottom plate, a key cap with a key cap major axis, a lifting mechanism, a spring-back device and a supporting mechanism, wherein the lifting mechanism is arranged between the bottom plate and the key cap and comprises a first plate-shaped support and a second plate-shaped support; the first plate-shaped support comprises a first side part and a second side part parallel to the key cap major axis for abutting against the bottom plate and the key cap respectively; the second plate-shaped support comprises a third side part and a fourth side part parallel to the key cap major axis for abutting against the bottom plate and the key cap respectively; part of the bottom plate enters accommodating openings of the first plate-shaped support and the second plate-shaped support to enable the first plate-shaped support and the second plate-shaped support to be movably connected onto the bottom plate; the spring-back device is used for driving the key cap to be returned to an un-pressed position along with pivoting of the first plate-shaped support and the second plate-shaped support relative to the bottom plate via the first side part and the third side part; and the supporting mechanism comprises a first supporting piece and a second supporting piece which are pivoted mutually to be movably connected between the key cap and the bottom plate. The pulling force of the key cap can be increased, and the problem that the key cap of a multiple key is likely to fall can be solved effectively.
Owner:DARFON ELECTRONICS (SUZHOU) CO LTD +1

Hob mounting structure of shield tunneling machine

The invention belongs to the technical field that the whole section is cut simultaneously by one rotary drill, and particularly discloses a hob mounting structure of a shield tunneling machine. The hob mounting structure of the shield tunneling machine comprises bolts, a hob, a tool apron and a hob shaft used for fixing the hob, and further comprises wedge blocks, wherein threaded holes matched with the bolts are formed in the tool apron; grooves for accommodating the hob shaft and the wedge blocks are further formed in the tool apron; a cross section of the hob shaft is wedge-shaped; through holes are formed in the wedge blocks; the diameter of a bolt head of each bolt is larger than the diameter of each through hole, and the outer diameter of a screw of each bolt is smaller than the diameter of each through hole. Besides, the hob mounting structure further comprises stop blocks fixed on the wedge blocks, sealing plugs are further arranged on the tool apron, and pull rings are arranged on the sealing plugs. Compared with a traditional hob mounting structure of the shield tunneling machine, the hob mounting structure of the shield tunneling machine adopts a newly added design of the wedge blocks, the stability of the hob shaft is greatly improved under the locking action of the bolts on the wedge blocks, and the problem that the hob is likely to fall off is effectively solved.
Owner:CHONGQING TENGHAN IND & TRADE

Preparation method of submicron-grade graph on sapphire substrate

The invention relates to a preparation method of a submicron-grade graph on a sapphire substrate, which belongs to the technical field of semiconductors and comprises the following steps of: firstly depositing a photoresist-adhering layer on the sapphire substrate, then carrying out the ultrasonic processing of the sapphire substrate in acetone through photoetching and vapor deposition, and cleanly flushing by adopting deionized water; then placing the sapphire substrate into a hydrochloric-acid aqueous solution for heating to ultrasonically remove a metallic mask layer after being etched by adopting an inductively-coupled plasma dry method, flushing with the deionized water, and then placing the sapphire substrate into dilute hydrofluoric acid or a heated phosphoric-acid solution to remove the photoresist-adhering layer; and finally placing the substrate into the acetone and alcohol for ultrasonic processing, and then cleanly flushing with the deionized water. The preparation method of the submicron-grade graph on the sapphire substrate has the advantages of low manufacturing cost, easiness in operation and high finished-product rate, can be used for the epitaxial growth of low-dislocation-density high-crystal-quality nitrides and can be used for producing the substrate material of a nitride-semiconductor light-emitting diode with higher light-emitting efficiency.
Owner:南京大学扬州光电研究院

Operation device with channel expansion and maintaining functions

The invention provides an operation device with channel expansion and maintaining functions. The operation device comprises a tube sheath assembly, a balloon, a gas-liquid infusion component and a guide rod, wherein the head part of the tube sheath assembly is connected with the balloon; the outer edge of the tube sheath assembly is connected with the gas-liquid infusion component; the guide rod is mounted in the tube sheath assembly in an inserting way; the tube sheath assembly comprises a tube sheath, a one-way sealed cavity control valve, a gas-liquid guide rod, a gas-liquid control valve and a seal ring; an axial through hole is formed in the tube sheath; a sealed cavity is formed in the tail part of the tube sheath; the one-way sealed cavity control valve is mounted in the sealed cavity in a sleeving way; the seal ring is mounted at the tail end part of the sealed cavity; when the operation device is in use, the guide rod sequentially penetrates through the seal ring and the one-way sealed cavity control valve and is mounted in the axial through hole of the tube sheath in an inserting way; the gas-liquid guide rod is arranged on the outer edge of the tube sheath; a through hole of the gas-liquid guide rod is communicated with the axial through hole of the tube sheath; since the one-way sealed cavity control valve is mounted in the sealed cavity, led-in gas-liquid flows into the balloon only through the axial through hole of the tube sheath unidirectionally; the gas-liquid control valve used for controlling in-out of the gas-liquid is arranged on the gas-liquid guide rod.
Owner:南京东万生物技术有限公司

Convenient-to-mount ammeter

The invention discloses a convenient-to-mount ammeter which comprises a box. An ammeter body is arranged in an inner cavity of the box, a threaded hole is formed in each of two sides of the box, a threaded column is connected in each of the two threaded holes in a threaded manner, opposite ends of the two threaded columns are fixedly connected with a first retaining block and a second retaining block respectively, the first retaining block is positioned on the left side of the second retaining block, the first retaining block and the second retaining block are positioned on two sides of the ammeter body, and the bottom ends of opposite faces of the first retaining block and the second retaining block are fixedly connected with a first clamping block and the second clamping block respectively. By arranging a storage groove, a spring, a moving block, a first rotating shaft and a hinging seat and through cooperation of a U-shaped groove, the second clamping plate and the first clamping plate, when the moving block slides to the U-shaped groove, the spring ejects the moving block to enable the same to be clamped in the U-shaped groove by leftwards pushing the second clamping plate and rightwards pushing the first clamping plate, so that effect of fixing the second clamping plate and the first clamping plate is realized; the ammeter is convenient to mount, so that maintenance efficiency is improved, and time and labor are saved.
Owner:无锡市海升电子科技有限公司

Layered two-dimensional material interlayer-confined metal or metal compound composite material as well as preparation method and application thereof

The invention discloses a layered two-dimensional material interlayer-confined metal or metal compound composite material as well as a preparation method and application thereof. The composite material comprises a layered two-dimensional material and a metal or metal compound confined among layers of the layered two-dimensional material. The method comprises the following steps: 1) performing lithiation treatment on the layered two-dimensional material to obtain a lithiated layered two-dimensional material; and 2) mixing the dried lithiated layered two-dimensional material, a metal salt and asolvent, performing sealing in a reaction kettle, and performing a hydrothermal reaction to obtain the layered two-dimensional material interlayer-confined metal or metal compound composite material.The preparation method disclosed by the invention can realize controllable preparation of a series of two-dimensional material interlayer-confined metal and metal compound composite materials; and theprepared composite material, especially a two-dimensional molybdenum disulfide interlayer-confined metal hydroxide composite material has the advantages of high electrocatalytic activity and good stability when being used as a hydrogen evolution catalyst, and has application prospects in the field of production of hydrogen by electrolysis of water.
Owner:SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV

Camera module, dust prevention and fixing method and installation method of camera module

The invention relates to a camera module, a dust prevention and fixing method and an installation method of the camera module, wherein the camera module comprises a circuit board, a plurality of passive elements and adhesive layers, wherein the passive elements are fixedly arranged on the circuit board; the adhesive layers cover the surfaces of the passive elements; the adhesive layers are filled in gaps among the passive elements. The dust prevention and fixing method comprises the following steps: dispensing adhesive on the surfaces of the passive elements of the camera module to form the adhesive layers; filling the gaps among the passive elements with the adhesive layers. The installation method of the camera module comprises the following steps: after applying gold threads, before mounting a bracket, dispensing adhesive on a circuit board area attached below the bracket and the surfaces of the passive elements of the camera module to form the adhesive layers; filling the gaps among the passive elements with the adhesive layers. The camera module, the dust prevention and fixing method and the installation method of the camera module can solve the problem that foreign matters are easily hidden among passive elements and easily fall down during vibration.
Owner:NANCHANG O FILM OPTICAL ELECTRONICS TECH CO LTD +3

Composite decoration foam concrete building block and manufacture method thereof

The invention provides a composite decoration foam concrete building block and a manufacture method thereof. The composite decoration foam concrete building block comprises a foam concrete building block body, wherein a decoration panel is compounded on at least one lateral wall of the foam concrete building block body, and a connection structure is arranged on the decoration panel to integrally composite the decoration panel and the foam concrete building block. The decoration panel is made of decoration ceramic tiles, marbles or artificial marbles, and the connection structure is a wedge-shaped convex block or a convex strip. The decoration panel is integrally compounded with the foam concrete building block, and decoration of an external wall is not needed after a wall is built, so that the composite decoration foam concrete building block is more convenient to use and good in decoration effect, solves the problem that the decoration panel is apt to fall off radically, has the advantages of high safety, light weight, high strength and good heat insulation and sound insulation effects. The composite decoration foam concrete building block and the manufacture method thereof are convenient to construct and good in stability and greatly reduce labor intensity and building cost.
Owner:重庆市旌弘建材有限公司

Laying method of automatic texture formation particle-free environmentally-friendly plastic track

The invention discloses a laying method of an automatic texture formation particle-free environmentally-friendly plastic track. The method comprises the following steps: S21, laying a substrate layer: mixing an environmentally-friendly single-component water solidified plastic track material with black micelles according to a weight ratio of 1:4-6, and laying the substrate layer on a dry and solidified cement base or asphalt base; S22, laying a reinforcing layer: spreading a layer of the black micelles on the dry and solid base layer, and lying the environmentally-friendly single-component water solidified plastic track material to cover the substrate layer; and S23, laying an automatic texture formation layer: uniformly mixing 10-12 parts of an automatic texture formation finish, 1-3 parts of EPDM particle rubber powder and 3-6 parts of quartz sand to form an automatic texture formation layer material, fully stirring, and spraying the obtained material on the dry and solidified reinforcing layer. The track has the advantages of environmentally friendly material, no shedding of particles, good durability, plump and uniform surface textures, high tensile strength and long service life, and all performance indexes of the track accord with technical requirements of International Association of Athletics Federations and GB / T14833-2011.
Owner:广州帝森康体设备有限公司
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