19results about How to "Clean surface" patented technology

The invention discloses a process for preparing a V2O3 / ZnV2O3 total battery by simultaneously using vanadium oxide in a zinc ion battery as a positive electrode material and a negative electrode material, which comprises the following steps: reacting ammonium metavanadate with absolute ethyl alcohol by adopting a solvothermal synthesis method, washing, drying, and calcining in a tubular furnace to obtain V2O3; in the preparation process of the V2O3 positive electrode material, only V2O3, acetylene black serving as a conductive agent and PVDF serving as a binder are mixed in proportion and then are coated on graphite paper, other coating protection materials do not need to be introduced into a V2O3 / Zn negative electrode, and V2O3 is used as a protection layer to inhibit growth of zinc dendrites, relieve hydrogen evolution side reaction of the zinc negative electrode and reduce corrosion of zinc. Vanadium oxide V2O3 is directly used as a core positive electrode material, the zinc negative electrode coating is developed by utilizing the characteristics of the vanadium oxide V2O3, a material is formed, meanwhile, the performance optimization of the positive electrode and the negative electrode is realized, the used raw materials are simple and easy to obtain, the process is simple and easy to implement, and the preparation process is simple and easy to implement from V2O3 raw material synthesis to positive and negative electrode piece preparation to V2O3 / ZnV2O3 total battery assembly. And comprehensive improvement of positive and negative electrode performances of zinc ions is simultaneously realized by a single material.

The invention relates to the technical field of roll-dividing equipment, and particularly discloses a roll-dividing machine for an ultrathin narrow steel strip, which comprises a rack and further comprises an unwinding unit arranged on the rack, and the unwinding unit is used for unwinding the steel strip; the braking unit is used for making contact with the released steel belt and detecting whether the steel belt exists or not, and when it is detected that no steel belt exists, the unwinding unit is controlled to be braked; the burr scraping unit is used for scraping burrs on the two sides of the steel strip; the chip removing unit comprises a blowing pipe, and the blowing pipe is used for blowing air flow; the tension adjusting unit is used for adjusting the winding tension of the steel belt; and the rolling unit is used for rolling the steel belt. Burrs and chippings can be effectively removed, and it is guaranteed that the edge of the steel belt is smooth and the surface is clean.

The application discloses a kind of high tough AlSi10MgMn alloy and preparation method thereof, the composition of high tough AlSi10MgMn alloy includes: silicon 8.0~11.0%, magnesium 0.17~0.60%, manganese 0.2~0.6%, titanium 0.08~0.40%, boron 0.004~0.018%, strontium 0.3~0.6%, rare earth metal 0.1~0.3%, unavoidable impurity less than 1%, the balance is aluminum, the aforementioned percentage is mass percentage.The high tough AlSi10MgMn alloy of the application, surface neat, the mechanical properties such as tensile strength and elongation are significantly improved;Alloy grain is fine, dispersion uniform, no aggregation, no burning loss;Preparation method is simple and easy to operate.

The utility model discloses a clamping device for packing box processing, and relates to the technical field of clamping devices, the clamping device for packing box processing comprises a collecting box, the surface of the collecting box is fixedly connected with a filter screen, the surface of the collecting box is fixedly connected with a portal frame, and the surface of the portal frame is fixedly provided with a motor; a guide groove is formed in the surface of the portal frame, an output shaft of the motor is fixedly connected with a two-way threaded rod, the two-way threaded rod is rotationally connected with the inner wall of the guide groove, the surface of the two-way threaded rod is in threaded connection with a guide block, the guide block is slidably connected with the inner wall of the guide groove, and the surface of the guide block is fixedly connected with a guide block. The surface of the fixing plate is fixedly connected with a clamping plate, cleaning cotton slides downwards to clean the surface of the packaging box, then when the packaging box is used subsequently, the surface of the packaging box is cleaner and tidier, and then foreign matter and dust are prevented from being attached to the surface of the packaging box.

The invention discloses polymethylsilane capable of regulating and controlling the C / Si atomic ratio and a preparation method and application thereof.The preparation method comprises the steps that metal sodium is cut and crushed, and metal sodium fragments are obtained; adding the metal sodium fragments into an organic solvent, and heating until the metal sodium is in a molten state to obtain a mixture; stirring and cooling the mixture to obtain a sodium sand mixture; mixing methyl dichlorosilane, allyl methyl dichlorosilane, tetrahydrofuran and 15-crown ether-5, and then dropwise adding the mixture into the sodium sand mixture to react; the sodium sand in the preparation method has the characteristics of uniform particle size, high activity and clean surface; tetrahydrofuran and 15-crown ether-5 are added into dichloromethylsilane and allyl methyldichlorosilane, so that the single electron transfer rate of metallic sodium to dichloromethylsilane can be increased, the reaction activation energy can be reduced, the reaction efficiency can be improved, the molecular structure can be optimized, the loss of carbon elements can be made up, and the problem that PMS is rich in silicon after pyrolysis can be solved.

The utility model discloses a continuous casting machine roller bed clean lubrication integrated device relates to mechanical casting technical field, including mounting bracket, one side rotation connection has the roller bed body between the mounting bracket, the lower extreme of one side between the mounting bracket is provided with the two -way threaded rod, and the upper end of two -way threaded rod is provided with the cleaning mechanism for wiping the outside of roller bed body, the cleaning mechanism includes movable block, and movable block is connected in the outside of two -way threaded rod with screw, the top of movable block is articulated to have articulated link, and the top of articulated link is installed with the cleaning brush through the fixed box. This continuous casting machine roller bed clean lubrication integrated device, through the fixed link of moving can exert certain pressure to extrusion plate, thereby making extrusion plate will evenly to elastic gasbag exert the inference, making the lubricating oil in the inside of elastic gasbag is extruded and sprays from the oil nozzle place through the hose, and the oil nozzle can guide lubricating oil to carry out lubrication treatment to the outside of roller bed body.

This invention relates to the field of molecular sieve technology, specifically to a SAPO-34 molecular sieve, its preparation method, and its applications. The preparation method includes: aging, pre-crystallization, and crystallization of a gel containing an aluminum source, tetraethylammonium hydroxide, a silicon source, a phosphorus source, and water; wherein the aging temperature is 40-80℃, and the aging time is 4-12 h; the pre-crystallization temperature is 90-130℃, and the pre-crystallization time is 2-24 h; and the crystallization temperature is 180-210℃, and the crystallization time is 24-50 h. The SAPO-34 molecular sieve prepared by this invention has a nanometer-sized particle size, uniform morphology, clean surface, high regularity, and the preparation operation is simple and environmentally friendly.

This invention provides a roll packaging machine, relating to the field of packaging film sealing and cutting technology. It includes a sealing and cutting packaging machine, a second sealing and cutting mechanism, a third sealing and cutting mechanism, and a separating and transporting mechanism. The sealing and cutting packaging machine includes a feeding platform, a film feeding mechanism, a pushing mechanism, a first sealing and cutting mechanism, and a discharge and transporting mechanism. The film feeding mechanism wraps the packaging film around the outside of the roll material. The pushing mechanism pushes three roll materials placed on the feeding platform onto the discharge and transporting mechanism. A second sealing and cutting mechanism is located on both the left and right sides of the discharge and transporting mechanism, and a separating and transporting mechanism is located on the side of the discharge and transporting mechanism furthest from the sealing and cutting packaging machine. Through this technical solution, three roll materials placed side-by-side can be independently sealed each time, improving packaging efficiency.

This invention provides a method and apparatus for laser debonding, belonging to the field of semiconductor technology. The method includes the following steps: providing a temporary bonding body for a wafer, the temporary bonding body comprising a silicon carrier, an interposer, a carbon-rich thin film, a bonding layer, and a wafer stacked together; in a vacuum environment, irradiating the temporary bonding body with an infrared pulsed laser, causing interface peeling at the carbon-rich thin film, thus completing the laser debonding between the silicon carrier and the wafer. This invention uses a carbon-rich thin film as the laser release layer, reducing costs. It possesses broad-spectrum, high-efficiency absorption characteristics in the infrared laser band, enhancing laser scattering and light-trapping effects, and improving laser energy absorption efficiency. By performing laser debonding in a vacuum environment, impurities such as microparticles generated during interface peeling can be removed from the cavity, avoiding wafer contamination and interference with the laser path, thus improving the cleanliness, stability, and overall device yield of the debonding process.

The invention relates to hard film anti-rust oil and a preparation method thereof. The hard film anti-rust oil comprises the following raw materials: base oil, a film-forming agent, a plasticizer and an anti-rust agent, the film-forming agent comprises rosin, and the plasticizer comprises dodecanol. The hard film anti-rust oil contains rosin and dodecanol at the same time, the rosin and the dodecanol are compounded, high adhesive force brought by polar groups of the rosin is reserved, the flowability of molecular chains is improved through long-chain alkyl of the dodecanol, and the bending performance is improved while the high adhesive force of a film layer is kept. In addition, conjugated double bonds in the rosin are easy to oxidize and yellow under the action of illumination and oxygen, so that the appearance of the film becomes poor; long-chain alkyl of dodecanol can wrap rosin molecules, contact between the rosin molecules and air and ultraviolet rays is reduced, and through an accelerated aging test, the yellowing degree of a mixed system is reduced to 3.2 or below from 8.5 of pure rosin.

This utility model relates to the field of cast-in-place pile construction technology, specifically disclosing a reinforcing bar fixing device for cast-in-place piles. The device includes a steel formwork, which is circular in shape. Several sets of limiting rods are welded circumferentially to the top of the formwork, extending radially inwards towards the inside of the formwork. Limiting rings are welded to the ends of the limiting rods furthest from the formwork. Main reinforcement sleeves are fitted onto each set of limiting rods, and two limiting clamps are engaged at the top of the sleeves. This utility model ensures accurate positioning of the main reinforcement bars after pile head removal, and that the protective layer meets design requirements. It also ensures accurate pile diameter and top elevation after excavation and pile head removal, preventing damage to the pile head. Furthermore, it ensures straight and clean reinforcing bars after the pile head concrete is removed, guaranteeing the quality of the reinforcing bar construction.

The invention relates to a direct patterning method of a two-dimensional material, which comprises the following steps of: aligning and loading a quartz mask with a metal pattern layer and a substrate on which the two-dimensional material is uniformly distributed to obtain a substrate-mask assembly; ultraviolet light is utilized to excite oxygen to generate ozone to etch the substrate-mask assembly, and then direct patterning of the two-dimensional material is completed. The invention provides a direct patterning solution which can be compatible with an existing semiconductor production line and is suitable for various two-dimensional material systems, and a reliable process basis is provided for application of two-dimensional materials in high-performance electronic devices.

The utility model discloses a beef fascia removing device with rolling blade mechanism, including frame, the inner wall bottom of frame is placed with the material collecting frame, the inside of frame is equipped with the blanking mechanism, and the blanking mechanism includes motor, pivot, gear, hobbing blade roller and blanking roller, one side of frame is rotatably connected with two pivots and extends to the pivot outside frame, and the gear of mutual meshing connection is fixedly installed to one end of two pivots outside frame, and the outer ring of one pivot is fixedly installed with hobbing blade roller. Through the hobbing blade roller will drive the beef fascia that removes to continue to rotate, when the beef fascia on hobbing blade roller passes blanking roller, at this moment, the beef fascia that will stick to its surface is removed under the rotation of blanking roller, and then is collected through the material collecting frame, thereby avoiding its stick on hobbing blade roller, and causing pollution, thereby can remove the beef fascia that sticks to the surface of hobbing blade roller, and make its surface more clean.

This invention discloses a method for preparing polymethylsilane. The method includes cutting and crushing metallic sodium to obtain sodium fragments; adding the sodium fragments to an organic solvent and heating to a molten state to obtain a mixture; stirring and cooling the mixture to obtain a sodium sand mixture; mixing dichloromethylsilane, tetrahydrofuran, and 15-crown ether-5 and then adding the mixture dropwise to the sodium sand mixture for reaction, followed by cooling, solid-liquid separation, and distillation. This preparation method obtains a sodium sand product with uniform particle size, high activity, and clean surface by rapidly cooling after high-temperature dispersion of metallic sodium in a specific organic solvent system. By adding tetrahydrofuran and 15-crown ether-5 to dichloromethylsilane, the single electron transfer rate of metallic sodium to dichloromethylsilane can be increased, the activation energy of the reaction can be reduced, and the reaction efficiency can be improved. Furthermore, the continuous dropwise addition saves reaction time.

The utility model relates to leg massage technical field, concretely is portable magnetic leg massager, including closed cloth sleeve, the surface of closed cloth sleeve is provided with assembly component, the surface of assembly component is adsorbed with host computer, the assembly component is by pipe base, assembly cover, lower magnet and upper magnet are composed, the assembly cover is attached to the outer surface of closed cloth sleeve, the pipe base sets up on the inner wall of closed cloth sleeve, the utility model discloses through setting up assembly cover in the inside of closed cloth sleeve, make the surface of closed cloth sleeve be more neat, can not see various connecting pipes on the appearance, therefore also need not to connect connecting pipe, and the utility model discloses through setting up lower magnet and upper magnet, realized the magnetic attraction fixed of host computer, therefore when installing or taking down are more convenient, the utility model discloses through setting up sealing washer, realized the sealing work after splicing, avoided the phenomenon of the gas leakage.

The present application belongs to zinc-nickel alloy plating layer, and particularly relates to an alkaline stripping solution for removing unqualified zinc-nickel alloy plating layer, a preparation method and application thereof. In order to safely and efficiently remove unqualified zinc-nickel alloy plating layer, the present application provides an alkaline stripping solution, which is composed of the following components in terms of mass concentration: main salt: NaOH 100-180 g / L; oxidizing agent: sodium nitrate 180-200 g / L and NaClO 10-20 g / L; complexing agent: salicylaldehyde oxime 30-50 g / L and diethylene triamine 30-50 g / L; corrosion inhibitor: 2-acetylpyrrole or 4-piperidine carboxamide 2-10 g / L; wetting agent: sodium dodecyl sulfate 0.5-1.5 g / L. After the components in the alkaline stripping solution are mixed in proportion, the alkaline stripping solution can be directly used for removing unqualified zinc-nickel alloy plating layer, the stripping rate reaches 0.6-1 um / min, and the stripping temperature range is wide without damaging the substrate.

The invention relates to a combined mold, comprising: a metal mold, the metal mold comprising an upper part and a lower part which can be opened and closed, and the upper part and the lower part are provided with wax injection cavities which are communicated with each other; and the precoated sand mold is of a special-shaped structure, is arranged in the wax injection cavity and is connected with the metal mold, and a cavity formed between the precoated sand mold and the metal mold is a forming cavity of the wax mold. The wax mold is manufactured by injecting wax into the forming cavity, when the wax mold is used for manufacturing the workpiece, the wax mold and the precoated sand mold in the wax mold are buried and solidified together, then the wax mold is melted and poured, and finally the sand mold and the precoated sand mold are removed together, so that the metal workpiece can be obtained, the manufacturing process of the metal workpiece is simplified, and the production efficiency is improved. The metal workpiece is provided with an inner cavity matched with the sand mold of the precoated sand in shape and an outline matched with the wax injection cavity of the metal mold in shape. According to the combined mold, the precoated sand mold is stable in structure and not prone to shrinkage deformation, and the manufactured wax mold is high in precision and high in mold stripping quality.

This utility model discloses an online shaping and cooling device for thermal insulation strips used in curtain wall decoration, relating to the field of thermal insulation strip preparation technology. It includes: a base with two supports fixedly installed on its top surface; a box frame fixedly installed between the two supports on the top surface of the base; a cooling groove on the top surface of the box frame; and coolant stored in the cooling groove. By setting up a cooling mechanism, atomizing nozzles, a main traction roller, a driven roller, an ultrasonic generator, and a cooling fan work together to achieve spray pre-cooling of the high-temperature thermal insulation strip. Then, the strip is uniformly tractioned by the main traction roller and the driven roller, ultrasonic cavitation enhances heat exchange, and a brush simultaneously deburrs and dries the strip continuously and in an integrated manner. This significantly extends the effective cooling time, improves cooling uniformity and heat exchange efficiency, and simultaneously completes surface cleaning and drying, ultimately obtaining a curtain wall decorative thermal insulation strip with stable dimensions, a clean surface, and no thermal stress deformation.

The invention provides a bonded wafer and a preparation method thereof, a first plasma treatment process and a second plasma treatment process are sequentially performed on a device substrate, and plasmas adopted by the first plasma treatment process and the second plasma treatment process are different. The first plasma treatment process can remove pollutants on the surface of the oxide layer on the device substrate, so that the surface of the oxide layer is clean, the surface activity of the oxide layer can be improved, and a large number of dangling bonds are generated on the surface of the oxide layer. Plasma adopted in the second plasma treatment process and the oxide layer which is formed after the first plasma treatment process and has a high-activity surface are subjected to chemical reaction, oxygen vacancies formed on the surface of the oxide layer due to ion bombardment of the first plasma treatment process are repaired, and the density of the surface of the oxide layer is improved. Therefore, the oxide layer has a high-strength hydrophilic bonding surface, the bonding force between the device substrate and the supporting substrate is increased, and the pit defect of the bonded wafer after stripping treatment is reduced or avoided.