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39results about How to "Improve the deposition effect" patented technology

Efficient preparation process of short fiber hard thermal insulation composite material

The invention provides a high-efficiency preparation process of a short-fiber hard thermal-insulation composite material. The high-efficiency preparation process comprises the following steps: immersing carbon fibers of which the raw material is short fibers into a modifier for surface treatment, and then sequentially carrying out metal modification, carbon layer deposition and inorganic matter layer coating on the surface, carbon fibers and inorganic materials are subjected to composite hot pressing, then high-temperature graphitization treatment is carried out, and the short fiber hard heat preservation composite material is obtained. According to the process, the connection strength between the short fibers and the inorganic material can be improved, the mechanical performance of the composite material is improved, the graphitization degree is higher, and the good heat preservation performance is achieved.
Owner:HENAN GUANHE NEW MATERIAL TECH CO LTD

Composite wall material of microcapsule, microcapsule using composite wall material and preparation method of microcapsule

The invention discloses a composite wall material of a microcapsule, the microcapsule using the composite wall material and a preparation method of the microcapsule, and relates to the technical field of daily chemical products. The wall material of the microcapsule comprises polysiloxane, an epoxy-polyamine polymer and polyamide-amine, and the polysiloxane, the epoxy-polyamine polymer and the polyamide-amine are in covalent linkage. The essence microcapsule prepared from the composite wall material of the microcapsule has excellent friction aroma release performance and excellent stability.
Owner:GUANGZHOU LIBY ENTERPRISE GROUP CO LTD

Small-particle-size positive charge conditioning emulsion as well as preparation and hair care application thereof

The invention relates to the field of daily chemistry, and discloses a small-particle-size positive charge conditioning emulsion and preparation and hair care application thereof, and the small-particle-size positive charge conditioning emulsion comprises low-viscosity silicone oil, a nonionic emulsifier and a small-molecule cationic quaternary ammonium salt. A small-particle-size emulsion of low-viscosity silicone oil is prepared by utilizing a small-molecular cationic conditioner which is commonly used for hair washing and caring and has conditioning and emulsifying properties, even nano-scale silicone oil is prepared, and the low-viscosity silicone oil does not have the condition that the hair feels heavy after a high-viscosity silicone oil conditioner in the prior art is applied to specific people. The emulsion has small particle size and uniform deposition, and the surface positive charges of the emulsion improve the stability of the emulsion and also improve the deposition property of the low-viscosity silicone oil to a certain extent.
Owner:LAFANG CHINA CO LTD

Unmanned aerial vehicle for pesticide spraying

The invention provides a pesticide spraying unmanned aerial vehicle, and particularly relates to the technical field of unmanned aerial vehicles, the pesticide spraying unmanned aerial vehicle comprises an unmanned aerial vehicle main body, the bottom of the unmanned aerial vehicle main body is fixedly connected with a bottom plate, the bottom of the bottom plate is detachably connected with a pesticide liquid box, and the bottoms of the ends, away from the unmanned aerial vehicle main body, of two side plates are fixedly provided with electric telescopic rods; the telescopic end of the electric telescopic rod moves downwards to reduce the spraying height of the fan-shaped spray head, so that the overall flight height of the aircraft does not need to be adjusted in actual spraying operation, and the flight stability is prevented from being influenced by adjustment of the flight height of the aircraft; in this way, the spraying height of the four fan-shaped sprayers arranged under the four driving motors is flexibly reduced, downward-pressing airflow generated when the flying wings rotate is better utilized, the downward-pressing airflow is used for pushing liquid medicine to the surfaces of plants, the penetrating power of the liquid medicine to crops is enhanced, the deposition effect of the liquid medicine is improved, and the spraying efficiency is improved. Therefore, the spraying effect of unmanned flying pesticide spraying is improved.
Owner:SHANDONG HENGHUI MASCH CO LTD

Welding method for high-purity aluminum target material

The invention discloses a welding method for a high-purity aluminum target material, and belongs to the technical field of alloy target materials. The method comprises the following steps: firstly, turning a plane thread on a to-be-welded surface of a copper alloy back plate, then plating an aluminum film on the to-be-welded surface within a certain thickness range, then assembling the copper alloy back plate plated with the aluminum film and a high-purity aluminum target blank, and putting an assembled target assembly into a sheath for degassing treatment; finally, hot isostatic pressure diffusion welding is carried out under the condition that the temperature is larger than or equal to 200 DEG C; the aluminum-copper target material prepared by adopting the welding method provided by the invention has good welding bonding strength and can be better applied to sputtering at high temperature; and the high-purity aluminum target grains can be effectively prevented from abnormally growing through diffusion welding at low temperature.
Owner:PIONEER FILM MATERIALS (ANHUI) CO LTD

Tubular workpiece inner wall film deposition device and method

The invention relates to the technical field of plating, in particular to a tubular workpiece inner wall film deposition device and method.The deposition device comprises a deposition chamber, the deposition chamber comprises a reaction chamber, a feeding pipeline and a discharging pipeline are oppositely arranged on the two sides of the reaction chamber, and a supporting device is arranged in the reaction chamber; the supporting device is used for placing a tubular workpiece to be plated; the outer wall of the tubular workpiece is coated with the flexible heating piece, the heating bodies are distributed in the flexible heating piece to be plated and used for heating the tubular workpiece in the thin film deposition process, the tubular workpiece is wrapped by the flexible heating piece, the heating bodies and the tubular workpiece are tightly attached in a gapless mode for heating, the heating bodies wrap the tube body, heating is more uniform, and the coating effect is better. The heat conduction effect is high, and uniform deposition of a pipe inner wall film is facilitated; meanwhile, the flexible heating piece on the outer layer is used for supporting, the heat preservation and insulation performance is good, the heat utilization efficiency of the heating body is improved, the heating body is isolated from the supporting device, the heat influence of the supporting device is reduced, and the uniform deposition performance of the film is improved.
Owner:上海派拉纶新材料股份有限公司

Preparation method and application of silicon-carbon negative electrode material

The invention discloses a preparation method of a silicon-carbon negative electrode material. The preparation method comprises the following steps: drying porous carbon to serve as a matrix; the method comprises the following steps: mixing a porous carbon substrate and a deposition aid, placing the mixture in a reactor together, introducing shielding gas, heating to a deposition temperature, introducing a mixture of silicon source gas and the shielding gas, and depositing silicon into porous carbon; adjusting the temperature of the reactor to a coating temperature, introducing a mixture of carbon source gas 1 and protective gas, carrying out primary carbon coating on the porous carbon, and then introducing a mixture of carbon source gas 1, carbon source gas 2 and protective gas to complete complete carbon coating on the surface of the porous carbon; and separating out the deposition aid to obtain the silicon-carbon negative electrode material. According to the invention, the problem of non-uniform silicon deposition in the process of producing the silicon-carbon negative electrode material by the existing vapor deposition method is solved, the gas-solid mass transfer is enhanced, the deposition and coating temperature is reduced, and the product quality and the production safety are improved.
Owner:WANHUA CHEM GRP CO LTD

Corrosion-resistant metal surface composite coating material and preparation method thereof

The invention discloses a corrosion-resistant metal surface composite coating material and a preparation method thereof in the technical field of metal plating, a first deposition layer and a second deposition layer are formed on a stainless steel metal surface through multi-layer doping type electro-deposition treatment, the first deposition layer can improve the adhesiveness of a metal coating and the stainless steel surface, and the second deposition layer can improve the adhesiveness of the metal coating and the stainless steel surface. The uniformity of the second deposition layer can be improved; the second deposition layer is composed of various metal ions and polytitanium silazane, and the corrosion resistance of the metal coating can be improved.
Owner:SHANXI ARCHITECTURE KEXUE RES YUAN

Bushing assembly and thin film deposition equipment

ActiveCN222631555UImprove the deposition effectGuaranteed uniform distribution around the circumferenceChemical vapor deposition coatingThin membraneReaction chamber
The utility model discloses a lining assembly and thin film deposition equipment, the thin film deposition equipment comprises a reaction chamber, the reaction chamber comprises a chamber body, a heating disc and a lining assembly, the lining assembly comprises a lining and an adjusting structure, the lining is provided with at least three mounting parts, the three mounting parts are distributed along the circumferential direction of the lining, and the adjusting structure is arranged on the lining. Each mounting part is provided with a group of adjusting structures, each group of adjusting structures comprises an eccentric part and a fastening part, the eccentric part is mounted in the mounting part of the bushing, the fastening part is eccentrically connected with the eccentric part, the fastening part is further fastened with the positioning hole in the cavity, and the bushing is fixed on the cavity through the fastening part. Therefore, the position of the eccentric part in the mounting part is adjustable, the relative position of the lining is determined by adjusting the positions of the eccentric parts of the three groups of adjusting structures, errors during centering adjustment of the heating disc are compensated, it is guaranteed that gaps between the lining and the heating disc are circumferentially and uniformly distributed, and the film deposition effect is improved.
Owner:PIOTECH (SHANGHAI) CO LTD

Processing equipment for aramid nano metallized comfortable protective material

The invention relates to the technical field of processing of protective materials, and discloses processing equipment for aramid nano metallization comfortable protective materials, which comprises a processing box, filtering treatment equipment and a suction fan, the filtering treatment equipment is fixedly connected to the top of the processing box, and the suction fan is fixedly connected to the interior of the filtering treatment equipment. Inlets and outlets are formed in the two sides of the processing box, and the multiple auxiliary assemblies are used for removing impurities and moisture in aramid fibers in a multiple mode so that metal deposition can be more uniform; the aramid fibers moving in the middle are turned and flapped synchronously through the two flapping steel meshes II and the flapping steel mesh I, so that chippings and dust in the aramid fibers can be effectively flapped out, and the effect of removing the chippings and dust in the aramid fibers is improved; and the flapped fiber chippings and dust are adsorbed and collected under the electrostatic action of an electrostatic collection plate, and the situation that the fiber chippings and dust influence the aramid fiber removal effect in the processing box is reduced.
Owner:ZHEJIANG JIAYUAN NEW MATERIAL CO LTD

Microwave plasma vapor deposition equipment

The utility model discloses microwave plasma vapor deposition equipment which comprises a device base, a cooling water tank, a water supplementing pipe, a water outlet pipe, a water pump, a water conveying pipe, MPCVD equipment and a return pipe and further comprises an adjusting mechanism and a gas supplementing mechanism, the cooling water tank is fixedly connected to the top of the device base, and the water supplementing pipe is fixedly installed on the inner wall of the cooling water tank. According to the microwave plasma vapor deposition equipment provided by the utility model, the fixed handle is rotated, so that the first piston descends along the fixed cylinder, the content of gas in the adjusting air bag is adjusted, the expansion degree of the adjusting air bag is further adjusted, and the flow speed of water flowing through the interior of the water conveying pipe is adjusted; the cooling intensity of the device is influenced by the flow speed of the water, so that the cooling intensity can be adjusted according to production requirements, the use flexibility of the device is improved, and the deposition effect of the device is improved by adjusting the deposition temperature of the device according to requirements.
Owner:JIAXING TOPSTONE NEW MATERIALS CO LTD

A nickel-plated steel sheet with excellent corrosion resistance for battery casing and its manufacturing method.

This invention relates to a nickel-plated steel sheet with excellent corrosion resistance for battery casings and a method for manufacturing the same. In one specific embodiment, the nickel-plated steel sheet comprises: a base steel sheet; a nickel plating layer formed on at least one surface of the base steel sheet; and a nickel-iron diffusion layer formed between the base steel sheet and the nickel plating layer. The nickel plating layer and the nickel-iron (Ni-Fe) diffusion layer are formed by heat treatment after forming an electroplated nickel layer on the base steel sheet and a chemically plated nickel layer on at least a portion of the surface of the electroplated nickel layer. The nickel plating layer contains one or more vacancy elements selected from phosphorus (P), boron (B), tungsten (W), cobalt (Co), molybdenum (Mo), and copper (Cu) on its surface.
Owner:TCC STEEL

A farmland type ecological buffer zone structure

The utility model provides a kind of farmland type ecological buffer zone structure, it is related to agricultural ecological environment management technical field, including land buffer area one, ecological regulation pond, land buffer area two and concave green land, land buffer area one, ecological regulation pond, land buffer area two and concave green land are sequentially distributed from farmland side to river embankment side, land buffer area one and land buffer area two are planted with arbor shrub and grass flower mat, the ecological regulation pond is sequentially provided with impermeable layer, adsorption layer and plant layer from bottom to top, the concave green land is laid with buffer base, the concave green land is planted with herbaceous plant and shrub. This structure effectively intercepts farmland non-point source pollution, reduces river pollutant, helps to strengthen river self-purification capacity, promotes aquatic animal and plant diversity development, and guarantees ecological benefit to play well.
Owner:BEIJING ZHIHE WATER ENVIRONMENTAL TECH CO LTD

High-hardness and low-friction multi-layer composite cutter coating and preparation method thereof

The invention discloses a high-hardness and low-friction multi-layer composite cutter coating and a preparation method thereof.The high-hardness and low-friction multi-layer composite cutter coating is prepared through a multi-arc ion plating and high-power pulse magnetron sputtering co-deposition technology and structurally comprises a Ti base layer, a TiN transition layer, a TiSiN hard supporting layer and a TiSi-DLC anti-friction layer, and the TiSiN hard supporting layer and the TiSi-DLC anti-friction layer are alternately deposited. According to the high-hardness and low-friction multi-layer composite cutter coating and the preparation method thereof, through the alternate deposition design of the coating, the internal stress between layers is effectively balanced, the binding force between the coating and a base body is improved, the surface modification requirement of an industrial cutting tool is met, meanwhile, the comprehensive mechanical property of the coating is further improved by changing the modulation period, and the service life of the coating is prolonged. The popularization value is realized.
Owner:化学与精细化工广东省实验室潮州分中心 +1

3D hand plate model machining nozzle angle adjusting device based on charging box

ActiveCN222590716UOptimize the path of movementImprove liquidityComputer printingServo
The utility model relates to the technical field of 3D printing, in particular to a 3D hand plate model machining nozzle angle adjusting device based on a charging box. The device comprises a base, a placing table is installed on the surface of the base, a support is installed on the surface of the base, a control device is arranged on the surface of the support and comprises a fixing plate, the fixing plate is fixedly connected with the surface of the support, and a servo motor is fixedly connected to the side, away from the support, of the fixing plate. The output end of the servo motor is fixedly connected with a rotating plate, the surface of the rotating plate is slidably connected with a special-shaped block, the surface of the special-shaped block is provided with a nozzle body, sliding grooves are formed in the two sides of the rotating plate, the inner surfaces of the sliding grooves of the rotating plate are slidably connected with limiting blocks, and two sliding holes are formed in the surface of the special-shaped block. The problem that materials are wasted due to the fact that the nozzle movement path is not optimized enough when a product is printed because the nozzle of a common printer only can do linear movement is solved.
Owner:SHENZHEN TONGZHOU FAR VISION TECH CO LTD

Building sewage treatment device

ActiveCN224252179UImprove the deposition effectAdequate depositionSettling tanks feed/dischargeSedimentation settling tanksSewageSewage treatment
The utility model discloses a building sewage treatment device and relates to the technical field of sewage treatment. The device comprises a cylinder body, a deposition mechanism is arranged in the cylinder body, a dredging mechanism is arranged on the inner side of the deposition mechanism, the deposition mechanism comprises a first-stage deposition tank, a second-stage deposition tank and a third-stage deposition tank, and the first-stage deposition tank, the second-stage deposition tank and the third-stage deposition tank are sequentially arranged in the cylinder body. A water inlet is formed in the inner wall of one side of the first-stage deposition tank, a first-stage circulation opening is formed in the inner wall of the other side of the first-stage deposition tank, a deposition pond is fixedly arranged on the lower inner wall of the second-stage deposition tank, the inner wall of one side of the deposition pond is fixedly connected with the first-stage circulation opening, and a plurality of filtering openings are formed in the outer side of the deposition pond; according to the utility model, through the deposition mechanism, multi-stage deposition treatment can be realized, the sewage deposition effect is improved, sewage is fully deposited in each deposition tank, impurities such as silt in the sewage are effectively removed, and the sewage treatment quality is improved.
Owner:ZHEJIANG HANJIE CONSTRUCTION CO LTD

Nano silicon dioxide oil-water separation membrane and preparation method thereof

The invention discloses a nano silicon dioxide oil-water separation membrane and a preparation method thereof.The preparation method comprises the following steps that S1, a Glue gel solution is added into an absolute ethyl alcohol solution, the Glue gel solution is diluted through electromagnetic stirring, and a diluted gel solution is obtained; s2, fumed silica nanoparticles are added into deionized water, mechanical stirring is performed, ultrasonic dispersion is performed to enable the fumed silica nanoparticles to be uniformly dispersed, and a silica suspension is obtained; s3, the cleaned stainless steel mesh is subjected to laser etching treatment, and a needed base body is obtained; and S4, soaking a substrate in the prepared gel solution, taking out, drying, soaking in the prepared silicon dioxide suspension, taking out, drying, annealing, and depositing silicon dioxide on the surface of the substrate to obtain the nano silicon dioxide oil-water separation membrane. The prepared nano silicon dioxide oil-water separation membrane has the advantages of high separation efficiency, high underwater oil contact angle, high stability, wide applicability and the like, can be widely applied to oil-water separation treatment, and improves the treatment efficiency.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Hair care composition containing multi-element protein peptide as well as preparation method and application of hair care composition

The invention relates to the technical field of daily necessities for washing and care, and discloses a hair care composition containing multi-element protein peptide as well as a preparation method and application of the hair care composition. 0.01%-20% of an anionic surfactant; 0.5%-10% of an ampholytic surfactant; 0.5%-10% of a nonionic surfactant; 0.05%-5% of a cationic high-molecular polymer; 0.05% to 10% of a non-volatile conditioner; 0.01%-10% of a suspending agent; the plant raw materials soybean, corn and wheat are selected as additional products which are decomposed into fructose and protein by cellulase, different protein peptides can be obtained, polysaccharide and protein are generated through enzymolysis wall breaking of cellulase and protease, the added value of the composition is increased, natural plant sources are adopted, and the composition is environmentally friendly and free of toxic and side effects. The composition is mild, has a synergistic effect of multiple protein compounds, and can go deep into hair cores, repair damaged hair quality, recover natural luster and toughness of hair and improve deposition of effective substances.
Owner:GUANGZHOU BOYA COSMETICS CO LTD

High-efficiency preparation process of short fiber rigid thermal insulation composite material

The application provides a high-efficiency preparation process of short-fiber hard thermal insulation composite material: carbon fibers with short fibers as raw materials are immersed in a modifier for surface treatment, then metal modification, carbon layer deposition and inorganic layer coating are sequentially performed on the surface; the carbon fibers and inorganic materials are compounded and hot-pressed, and then high-temperature graphitization treatment is performed, so that the short-fiber hard thermal insulation composite material is obtained. The process can improve the connection strength between the short fibers and the inorganic materials, improve the mechanical properties of the composite material, and has higher graphitization degree and good thermal insulation performance.
Owner:HENAN GUANHE NEW MATERIAL TECH CO LTD

A brightener, its preparation method and application

ActiveCN117964576BImprove the deposition effectWith leveling propertiesCopper platingCopper high
The application provides a brightener, a preparation method and application thereof. The brightener has a structure as shown in formula 1, wherein R is any one of CH3-(CH2) x -, Ph-(CH2) y - or an azacyclic group, x is 2-5, and y is 0-4. The brightener is connected with a functional group having strong polarity, has good inhibition effect on copper, and has a capturing cuprous ion at the other end of the structure, accelerates copper deposition, has certain leveling performance, can form leveling effect on the surface copper high potential, forms acceleration effect on the low point position in the hole, and can effectively improve the deep plating capacity of the acid copper plating solution, and the deep plating capacity can reach 79-85%.
Owner:上海天承化学有限公司

A preparation method of hair dye and hair dye

The present invention provides a preparation method of a hair dye and the hair dye, and relates to the technical field of daily chemical products. Specifically, graphene oxide is dispersed in a polar solvent, and a general structural formula (R 1 O)3SiR 2 R 3 R 4 CH3N + X ‑ The quaternary ammonium salt of the present invention is reacted for a certain time, filtered, washed and dried to obtain modified graphene oxide; the modified graphene oxide is dispersed in an amino silicone oil microemulsion, reacted for 30 min-24 hours, and the hair dye is obtained. The hair dye of the present invention has simple preparation steps, better dyeing effect, and longer dyeing duration.
Owner:GUANGZHOU WEINIYA COSMETICS CO LTD

An unmanned ground effect vehicle for plant protection

The present invention belongs to the technical field of aerial plant protection research, and specifically is an unmanned ground effect vehicle for plant protection. It includes a fuselage, wings, a spray system, a signal acquisition system, and a control system. The use of a cushion propeller, an airbag belt, and a dual-purpose propeller to assist in takeoff greatly shortens the takeoff distance and reaches the operating height more quickly; the use of an airbag belt instead of a tire can be applied to takeoff and landing on different terrains, which is more suitable for the operating requirements of the present invention; using the ground effect principle, the flight height of the present invention is only about 2 meters, and the flight height can be manually set, so that plant protection operations can be better performed, and there is a large amount of liquid carried, which improves the endurance; the spray rod angle is adjustable, and the nozzle angle can be changed according to different operating conditions to improve the droplet deposition effect.
Owner:JIANGSU UNIV

Maskless electrochemical metal 3D printing device and method based on light-operated ion release

The invention discloses a maskless electrochemical metal 3D printing device and method based on light-controlled ion release, and relates to the technical field of electrochemical metal printing devices.The maskless electrochemical metal 3D printing device comprises projection equipment, a plating bath, a supporting frame, cathode ITO glass and a copper anode; a plating solution is placed in the plating tank, the plating tank is horizontally placed above a projection screen of the projection equipment, and the cathode ITO glass serving as a cathode is placed in the plating tank and fixed at the bottom of the plating tank; the copper anode is arranged on the support frame and is parallel to the cathode ITO glass; an ultraviolet light pattern generated on a projection screen of the projection equipment irradiates the plating solution on the surface of the cathode ITO glass, and a metal pattern is deposited on the surface of the cathode ITO glass through external voltage; projection equipment is used for projecting a designed ultraviolet light pattern into a local plating solution, a metal complex structure in the plating solution is destroyed, local electro-deposition of metal ions is achieved under the action of an external direct-current power supply, and the patterned metal microelectrode is rapidly prepared.
Owner:QINGDAO UNIV OF TECH

Multi-stage filtering device for recovery of production wastewater scum

The utility model relates to the field of wastewater treatment, in particular to a multi-stage filtering device for recovering scum in production wastewater. The utility model relates to a multi-stage filtering device for recovering scum in production wastewater. The multi-stage filtering device comprises a cavity table, a first filtering plate, a guide plate, a valve and a scum recovery mechanism, according to the utility model, waste water drives scum to be gathered in the mounting box through the guide plate, so that the scum can be deposited under the blocking and filtering action of the second filter plate, and meanwhile, the flowing speed of the waste water is limited by the sinking assembly, so that the situation that the scum flows out along with the waste water due to too fast flowing of the waste water in the filtering process is avoided; and after the scum is treated, the wastewater is guided back into the cavity table by virtue of the water pipe, so that centralized wastewater treatment is facilitated.
Owner:QINGYUAN NANXING CHEM CO LTD

A porous carbon material and its preparation method and application

The present invention discloses a porous carbon material and a preparation method and application thereof, wherein the preparation method comprises the following steps: providing a mixed slurry containing a carbon precursor and a seed inducer, and carbonizing the mixed slurry to obtain a pre-carbonized precursor material; physically activating the pre-carbonized precursor material to form pores to obtain a porous carbon precursor material; and sintering the porous carbon precursor material using an ultrafast ultrahigh temperature sintering technology to obtain a porous carbon material. The porous carbon material obtained by the preparation method not only has high electrical conductivity, but also has a high proportion of mesopores with a particle size of 2-10 nm, which can lay a foundation for the subsequent preparation of high-performance negative electrode materials, and can be used as a matrix material to prepare negative electrode materials and lithium-ion batteries with high electrochemical performance.
Owner:HEFEI UNIV OF TECH

Dose distribution optimization device and method for bidirectional large-angle focusing of VHEE beam

The invention discloses a dose distribution optimization device and method for a bidirectional large-angle focusing VHEE beam, and relates to the technical field of electron beam transmission. Quadrupole lenses are arranged at intervals along the beam emission direction; the front n-2 quadrupole lenses enlarge the envelope of the beam; the size of the (n-1) th quadrupole lens in the transverse focusing direction can accommodate the envelope of the beam; when the beam passes through the nth quadrupole lens, envelope is subjected to defocusing action, the beam output requirement is just met, and the bidirectional large-angle focusing VHEE beam of the beam is output; and different target dose distributions are obtained by adjusting the magnetic field gradients of the last two quadrupole lenses. According to the invention, two quadrupole lenses closest to an outlet hole are both taken into consideration, so that the dose distribution effect is further optimized; and a larger focusing angle can be obtained by adopting bidirectional large-angle focusing, so that the dose before the focus is more dispersed, and the dose at the focus is more prominent.
Owner:SUN YAT SEN UNIV

Longitudinal spiral type HFCVD diamond deposition system and deposition method

PendingCN121826895AImprove the deposition effectincrease temperaturePolycrystalline material growthFrom chemically reactive gasesDiamond depositionComposite material
The invention discloses a longitudinal spiral HFCVD diamond deposition system and a deposition method.The deposition system comprises a plurality of spiral lamp filaments located on the side of a base body, the spiral lamp filaments are arranged in the vertical direction and distributed at equal intervals in the transverse direction, the two ends of each spiral lamp filament are connected with a pre-stretching structure, and the two ends of each spiral lamp filament are connected with the corresponding pre-stretching structure; one side of the spiral filament away from the substrate is connected with the supporting structure; the pre-stretching structure comprises a plurality of molybdenum elastic pieces distributed at equal intervals in the transverse direction, one end of each molybdenum elastic piece is connected with the end of the spiral lamp filament, the other end of each molybdenum elastic piece is installed on the insulating piece through a fixing screw, and gaps with adjustable sizes are formed between the molybdenum elastic pieces and the insulating piece. The supporting structure comprises a plurality of supporting molybdenum sheets which are distributed at equal intervals in the vertical direction. According to the longitudinal spiral type HFCVD diamond deposition system and method, the deposition performance is remarkably improved through a longitudinal spiral type filament structure, the system reliability and the process stability are enhanced, and large-area uniform deposition can be achieved.
Owner:SINOMA INTRAOCULAR LENS RESEARCH INSTITUTE CO LTD JINAN DIAMOND BRANCH +1

High-efficiency localized electrochemical deposition method and device for grain refinement

The invention belongs to the technical field of localized electrodeposition, and relates to a localized electrochemical deposition method and device for high-efficiency grain refinement, the method comprises the following steps: S1, according to a to-be-processed requirement, carrying out inscribing modification on a cathode surface of a substrate by using ultrafast laser to obtain a modified substrate; s2, the modified substrate is fixed in an electroplating pool, an anode plate is fixed below the modified substrate in the electroplating pool, an electrolyte is added, and the liquid level of the electrolyte is higher than the upper surface of the modified substrate; laser is placed above the electroplating pool, it is guaranteed that the laser is focused on the cathode surface of the modified substrate, and establishment of an electro-deposition system is completed; and S3, electro-deposition parameters and laser parameters are set, a laser focus performs reciprocating scanning in the modified area of the modified substrate, and localized electro-deposition is completed. According to the method, ultrafast laser is introduced into the substrate modification and electrochemical deposition process, the machining efficiency and the deposition effect can be improved, and grain refinement can be achieved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV