15results about How to "Guaranteed performance and stability" patented technology

This invention discloses a method for preparing high-purity oxygen-free copper, relating to the field of metallurgical technology. The method includes multi-stage electrolytic refining, gradient-heating vacuum melting, inert gas-protected refining, electron beam melting, hydrogen plasma arc melting, directional solidification, and post-treatment steps. The multi-stage electrolytic refining utilizes a specific component electrolyte and periodically commutated current; vacuum melting is combined with bidirectional electromagnetic stirring; inert gas-protected refining is combined with a gradient reduction composite covering agent; electron beam and hydrogen plasma arc melting achieve deep purification and deoxidation; and directional solidification and two-stage annealing ensure product performance. The high-purity oxygen-free copper prepared by this invention has a conductivity of 102.3% IACS, a copper content ≥99.9999%, and an oxygen content <1.0 ppm. It exhibits high purity, low oxygen content, and excellent conductivity. The process is stable and controllable, making it suitable for high-end electronics applications.

This utility model relates to a highly practical electric water bottle, comprising a body, a control system disposed within the body, and a water level gauge assembly. The body contains a water bottle with an inner cavity, and a flow guide pipe communicating with the inner cavity of the water bottle is located below the water bottle. The control system includes a control panel disposed on the outer surface of the body, and the control panel has a liquid level display area. The water level gauge assembly includes a liquid level detection tube vertically disposed on the outside of the water bottle and communicating with the inner cavity of the water bottle, and a liquid level sensor disposed on the liquid level detection tube and electrically connected to the control system. By incorporating the water level gauge assembly within the body, the water level inside the water bottle can be detected and displayed intuitively through the control panel for easy user viewing. This avoids the aesthetically unappealing problem caused by transparent visible areas on the body of traditional electric water bottles, effectively improving the user experience.

The utility model relates to the technical field of scooters, and discloses a scooter and a scooter frame, the scooter comprises the scooter frame, the left side of the scooter frame is fixedly connected with a girder, the inner wall of the girder is rotatably connected with a scooter rod base, the top of the scooter rod base is fixedly connected with a threaded rod, and the outer wall of the threaded rod is rotatably connected with a scooter rod head. A lock sleeve is arranged on the outer wall of the vehicle rod head, a screw is in threaded connection with the inner wall of the lock sleeve, a rotating shaft is rotationally connected to the front end of the screw, a rotating handle is fixedly connected to the outer wall of the rotating shaft, and a cushioning mechanism is fixedly connected to the right side of the vehicle frame. According to the utility model, the design of the frame enables the space of the mounting cavity to be enlarged, the capacity of the electricity storage piece to be improved, the control unit is placed in the heat dissipation cavities on the two sides of the mounting cavity, the guide plates can guide external airflow to enter the heat dissipation cavities, and heat generated when the control unit works can be taken away in time; therefore, the performance stability of the whole product in long-time operation is ensured.

The invention relates to the technical field of electrochromic materials and glass preparation, in particular to a preparation method of sandwich type all-solid-state inorganic electrochromic glass which is formed by sequentially compounding a tempered glass layer, a film layer and an electrochromic film layer pile. The thickness of the tempered glass layer is 4 mm, and the film layer is a PVB film and is 0.76 mm thick. The electrochromic film layer stack takes sodium-calcium non-tempered glass with the thickness of 3mm as a substrate, and an anti-ion diffusion layer, a first conductive layer, a first resistive layer, a negative electrode color changing layer, a second resistive layer, a positive electrode color changing layer, a third resistive layer, a second conductive layer and an outermost protective layer are sequentially arranged on the surface of the substrate from inside to outside; the anti-ion diffusion layer is a silicon dioxide layer, and the thickness is 200 nm. According to the preparation method of the sandwich type all-solid-state inorganic electrochromic glass provided by the invention, through precise design of each film layer structure of the glass and gradient optimization of a preparation process, the comprehensive performance of a product is synergistically improved, and many problems in the prior art are effectively solved.

The present application relates to the technical field of battery cooling, and discloses an adaptive dual-mode immersed liquid cooling system based on acoustic-heat flow collaborative sensing. The system comprises an acoustic sensor, a temperature sensor, a fuzzy controller, a multi-channel controller, a pump, a cooling coil, a radiator and a water tank. The system can perform single phase change cooling operation in a low rate mode and flow phase change collaborative cooling operation in a high rate mode, and mode switching decisions are made based on frequency domain changes of acoustic characteristics and calculated values of heat flow density. The acoustic sensor collects boiling acoustic wave signals of the cooling liquid, the temperature sensor monitors the battery temperature gradient, the fuzzy controller generates control instructions based on the above signals, and the multi-channel controller controls the pump power, the cooling coil flow and the radiator power. Through collaborative sensing and dual-mode adaptive adjustment, the system improves the cooling efficiency and response speed, adapts to different battery load states, and ensures the safe and stable operation of the battery.

This invention relates to the field of photovoltaic cable manufacturing technology, and more particularly to a solar photovoltaic cable and its manufacturing process. The process includes: processing a tin-plated cable core according to a pre-process; extruding the tin-plated cable core through an extruder with preset extrusion parameters to perform a first functional layer extrusion; pre-cooling the extruded cable; determining a second preset pulling speed for the second functional layer extrusion process based on a first excess value when the functionality is deemed unqualified, and further determining a second preset pulling speed based on a first excess value when the functionality is deemed unqualified after the pre-cooling stage; and adjusting the cooling temperature based on a second excess value when the cooling is deemed unqualified, and based on a second excess value when the cooling is deemed unqualified, after the cooling is deemed unqualified. This invention can comprehensively assess the manufacturing quality of photovoltaic cables from multiple dimensions and deeply refine it from a single dimension, and automatically feed back and adjust the parameters for manufacturing photovoltaic cables to improve the stability of the performance and the stability of the manufacturing process of photovoltaic cables.

The utility model relates to a kind of mixing devices, provide such a kind of cable insulation layer raw material's multi-component stirring device, including shell, control panel, mounting seat and temporary storage cylinder etc.;Control panel is equipped on the upper front side of shell, mounting seat is evenly equipped in the left and right sides of shell, cavity is equipped in the inside of shell, not less than two feed ports are equipped in the upper portion of shell, temporary storage cylinder is equipped in the feed port. The utility model is equipped with multiple temporary storage cylinders and weighing bin, can orderly temporary storage and accurate measurement to each component material before mixing, effectively reduce the processing error caused by raw material loss or artificial intervention due to the need for transfer between proportioning and mixing equipment, improve the uniformity and production efficiency of multi-component raw material stirring, it is favorable to guarantee the performance stability of subsequent cable insulation layer.

This invention proposes a fully biodegradable mulch film suitable for extreme high-altitude environments and its preparation method, comprising at least one three-layer composite film consisting of an outer layer, a middle layer, and an inner layer; the outer layer is an ultraviolet protective layer, the middle layer is a water vapor barrier layer, and the inner layer is a heat-insulating and protective layer. The mulch film of this invention is a fully biodegradable multilayer co-extruded agricultural mulch film integrating "super weather resistance, high barrier moisture retention, intelligent thermal management, and prevention of additive migration," thereby overcoming the shortcomings of existing mulch films in applications in extreme high-altitude environments.

The utility model discloses a bridge construction grouting equipment, including base, the base top respectively fixed connection multiple support column one end, multiple support column other end respectively fixed connection agitator barrel bottom end all around, the agitator barrel top fixed mounting support frame, support frame center fixed mounting has screw rod one side end, screw rod other side thread sleeve ball screw nut, ball screw nut bottom fixed connection pivot, pivot fixed mounting has multiple stirring vane, stirring vane is set in the agitator barrel, ball screw nut rotation sleeve connecting shaft, the both ends of connecting shaft respectively fixed connection sliding column, sliding column is slidably connected with sliding slot respectively, the sliding slot is set respectively in the both sides of agitator barrel, and one of sliding column fixed mounting has annular support, and the opposite side in annular support respectively fixed mounting has rack.

The utility model relates to a kind of waterproof silica gel braided tube in the field of braided tube, including braided tube shell, shell connecting end is equipped with sealing ring, the sealing ring interface adopts bionic sharkskin structure, surface evenly distributed limiting protrusion, can reduce fluid resistance, enhance sealing stability and mechanical occlusion, prevent displacement from falling in high pressure or vibration, improve braided tube reliability and durability. Shell surface is outer layer waterproof layer, its layout hydrophobic groove, can make water quickly slide, enhance waterproofness. The inner side of outer layer waterproof layer is middle reinforcing layer, can improve braided tube overall strength and extrusion resistance, avoid deformation damage. Inner layer is silica gel tube, inner wall is provided with spiral flow guide groove, can guide liquid spiral flow, reduce flow resistance, improve conveying efficiency. The braided tube is synergized by each structure, effectively enhance connection sealing property, ensure stable performance, applicable to a variety of requirements for waterproof and conveying efficiency scene.

This invention belongs to the field of concrete technology, specifically relating to an anti-mud polycarboxylate superplasticizer and its preparation method. The anti-mud polycarboxylate superplasticizer is made from zwitterionic monomers, unsaturated functional monomers containing primary amine groups, unsaturated polyether macromonomers, unsaturated acid monomers, formaldehyde, pyrogalactosyl, chain transfer agents, initiators, reducing agents, and deionized water; wherein the zwitterionic monomer is carboxybetaine methacrylate, and the unsaturated functional monomer containing primary amine groups is 2-aminoethyl methacrylate hydrochloride. The product of this invention maintains extremely high effective adsorption capacity with only a low dosage in harsh aggregate environments with a mud content >5%, significantly reducing the sensitivity of concrete to the mud content of sand and gravel.

This utility model relates to the field of magnetic attraction equipment technology and discloses a conical magnetic tamper, including a housing assembly. The housing assembly consists of an upper shell and a lower shell. The inner wall of the upper shell has several slots, and the inner wall of the lower shell is fixedly connected with several buckles. The opposing surfaces of the two shells are provided with steps. The upper shell and the lower shell are initially connected by the slots and buckles and the steps. A special adhesive is applied to the opposing surfaces of the upper shell and the lower shell and cured to form a sealed connection. The surfaces of the upper shell and the lower shell are symmetrically provided with two central holes. A positioning ring is provided on the outer side of each central hole. A coil pressure plate is provided on the inner wall of the lower shell. The inner cavities of the upper shell and the lower shell jointly accommodate the coil. The coil is radially positioned by the positioning ring and axially fixed by the coil pressure plate. By pre-setting the conical inner cavity contours of the upper shell and the lower shell, the ordinary coil can be naturally shaped by the cavity constraint during assembly. It can achieve a fit with the shell without relying on a customized conical coil, thus solving the problem of poor matching between the coil and the shell.

The application discloses a kind of high anti-sputtering drainage asphalt mixture and preparation method thereof, it is related to bitumen technical field.The raw materials of asphalt mixture include matrix asphalt, styrene-butadiene-styrene block copolymer, butyronitrile rubber microsphere, carboxyl silicone oil, composite modified aggregate, composite additive, graphene oxide mixed solution, calcium lactate.The preparation method of asphalt mixture includes the steps of composite modified aggregate preparation, preparation of graphene oxide mixed solution, preparation of composite additive, and preparation of asphalt mixture.The drainage asphalt mixture prepared by the application has strong anti-sputtering performance, excellent drainage performance and good anti-rutting performance.

The application discloses a kind of phase change material vacuum defoaming barrel filling methods suitable for prefabricated high porosity block, it is related to phase change energy storage building material preparation process technical field, including the following steps: to the maintenance of prefabricated high porosity block to design age, retain top surface filling surface, the rest outer surface is coated with epoxy resin sealant normal temperature solidification, form pre-sealing layer;Organic phase change material is heated to higher than its phase transition temperature 10~15 ℃ liquefaction and heat preservation;Pre-sealing block is loaded into openwork stainless steel mesh basket with filling surface upwards, overall is placed into vacuum defoaming barrel, inject phase change material to cover top surface, heating station overall heat preservation;After vacuum negative pressure filling, pressure relief, overall is taken out and drained remaining material, at service temperature environment cooling solidification, top surface sealing solidification is obtained finished product;The application realizes prefabricated block phase change material efficient uniform, low consumption safe batch filling by first pre-sealing then vacuum defoaming barrel mesh basket type filling process.

This invention discloses an enzyme-catalyzed stabilized teeth whitening and bleaching composite composition and its preparation method, relating to the field of teeth whitening technology. The composition comprises three components: a whitening gel, a catalyst, and a light-cured gingival barrier resin, which synergistically achieve teeth whitening and bleaching. The whitening gel contains hydrogen peroxide, carbomer, propylene glycol, a stabilizer, water, and sodium hydroxide. The catalyst contains propylene glycol, catalase, carbomer, glycerol, sodium hydroxide, sodium benzoate, purified water, and fragrance. The resin contains polyether polyurethane methacrylate, 1,6-hexanediol dimethacrylate, triethylene glycol dimethacrylate, camphorquinone, ethyl p-dimethylaminobenzoate, tert-butylhydroquinone, fumed silica, pigment, fragrance, and MIG-type silica. This invention utilizes enzyme catalysis to achieve natural-looking whitening; the whitening gel is stable during storage and does not easily dilute or release water; the resin cures gently and has a flexible texture; and the process is controllable, making it suitable for industrial production and clinical teeth whitening treatment.