78 results about "Tungsten filament" patented technology

The utility model relates to the technical field of tungsten filament drawing processing, and discloses a tungsten filament drying and preheating mechanism which comprises a box body with an opening at the upper end, a cover body is arranged at the opening of the box body, and a plurality of heating components distributed in parallel are arranged in the box body; the heating assembly comprises a heat conduction pipe and a plurality of electric heating pipes arranged in the heat conduction pipe, the cross section of the heat conduction pipe is of a C-shaped structure, a wire inlet notch is formed in the upper side of the heat conduction pipe, a C-shaped cavity penetrating through the two ends is formed in the heat conduction pipe, end covers are arranged at the two ends of the C-shaped cavity, the electric heating pipes are arranged in the C-shaped cavity, and the two ends of each electric heating pipe are connected with the end covers respectively; and avoiding gaps are formed in positions, corresponding to the two ends of the heat conduction pipe, on the box body. The heating device has the advantages of being convenient to use and stable and even in heating.

The invention discloses superfine aquadag for drawing a high-strength tungsten filament and a preparation method of the superfine aquadag, and belongs to the technical field of metal processing and forming. According to the preparation method, the ultrafine graphite dispersion liquid with small particle size and proper particle size distribution is obtained by improving the surface treatment and grinding process of the graphite powder; and uniformly mixing the thickening agent, the binder and the graphite dispersion liquid by adopting a segmented stirring method to obtain the finished product aquadag which is stable in component and not easy to layer. The aquadag provided by the invention has the characteristics of small particle size and large particle size distribution range, the ash content is low, the specific gravity is large, the cost is low, and meanwhile, the lubricity and the adhesion performance in the drawing process are remarkably improved. The aquadag provided by the invention can be used for processing superfine tungsten wires with the wire diameter of less than 30 microns and high tensile strength, and can meet the processing requirements of the novel photovoltaic diamond wire industry.

The invention discloses an ion etching device for PVD (Physical Vapor Deposition) coating equipment. The ion etching device comprises an auxiliary anode, a main and standby double-group tungsten filament heating module, an inert gas directional introduction module, a vacuum and electric connection module and a control and protection module. Through the design of the main and standby tungsten filaments and the automatic overlapping switching strategy, it is ensured that when one tungsten filament fails, seamless switching to the standby tungsten filament can be achieved, shutdown caused by filament breakage or degradation is effectively avoided, the service life of the device is prolonged, long-period continuous production is guaranteed, and the operation efficiency and production continuity of the device are greatly improved. Meanwhile, electric arc particle pollution is avoided through hot electron emission, and the surface cleanliness is high; the matching range of pressure, bias pressure and gas is wide, the method is suitable for multiple materials and complex morphology, and the process repeatability is good; the flange and the electric penetration assembly are modularized, and the tungsten filament / anode / gas supply assembly is quickly replaced, so that the maintenance time is shortened, and the maintenance cost is reduced; the whole system is simple in structure, does not need a complex magnetic field and a multi-stage electrode, and is low in equipment manufacturing cost.

The invention provides a tungsten filament straightening device convenient to adjust, and relates to the technical field of tungsten filament straightening. The tungsten filament straightening device convenient to adjust comprises a mounting operation table, a straightening box body is fixedly connected to the middle of the upper surface of the mounting operation table, movable connecting shafts are inserted into the front side and the rear side of the straightening box body correspondingly, and the opposite ends of the two movable connecting shafts are fixedly connected with U-shaped mounting bases correspondingly; and straightening wheels are rotationally connected into the U-shaped mounting seats. According to the tungsten filament straightening device, a first pump body is started, the first pump body pumps lubricating liquid in a lubricating liquid box body, the lubricating liquid enters a first annular pipe through a first connecting pipe and then is sprayed to the surface of a tungsten filament through a plurality of first spray heads, so that when the tungsten filament passes through the two straightening wheels, hard friction between the tungsten filament and the two straightening wheels can be reduced, and meanwhile the tungsten filament can be straightened. The tungsten filament can be isolated from air through the lubricating liquid, the situation that the surface of the tungsten filament is oxidized is reduced, and the quality of the tungsten filament is improved.

According to the manufacturing method of the screen cloth for the solar photovoltaic screen printing plate, the screen cloth is woven by adopting various warp and weft combinations, so that downstream customers can meet the requirements of various properties and the service life more flexibly according to the requirements of the customers. Warps and wefts with different diameters and different meshes are adopted for mixed weaving, according to customer requirements and market requirements, different weft diameters and different warp and weft mesh numbers are set for weaving, and the method comprises the following specific steps that S1, tungsten filaments used for weaving are wound on a raw material shaft according to reed parameter indexes; s2, enabling a tungsten filament for weaving a net to penetrate through a palm sheet and a reed, wherein the palm sheet is divided into a front sheet and a rear sheet; s3, uniformly adhering the warp yarns penetrating through the palm sheet and the reed to an adhesive tape; and S4, driving the weft yarns to weave through reciprocating motion of the rapier belt.

The invention discloses a gun emitting device of a tungsten filament scanning electron microscope. The gun emitting device comprises an emitting end vacuum cavity, a ceramic electrifying suite, a cathode assembly, a transmission module, an isolating valve and an outlet blind plate, the outlet blind plate is mounted on the end face of the rectangular boss of the transmitting end vacuum cavity; an extraction opening is formed in the opposite side of the rectangular boss of the transmitting end vacuum cavity; the ceramic power-on suite is mounted on the first step end surface of the transmitting end vacuum cavity; the isolating valve is mounted on the end face of a flange plate at the bottom of the transmitting end vacuum cavity to isolate the transmitting end vacuum cavity from other cavities of the electron microscope; the transmission module is fixed on the transmitting terminal vacuum cavity, and the cathode assembly installed on the transmission module can be driven by the motor to move back and forth to the atmosphere side and the vacuum side of the transmitting terminal vacuum cavity to replace the tungsten filament. The precision is high when the tungsten filament is installed, the tungsten filament is convenient to disassemble in the process of replacing the tungsten filament, and the equipment recovery time is shortened.

The utility model discloses a single-layer charge module, which relates to the technical field of charge modules and comprises a frame body, one side of the inside of the frame body is provided with a power connection block, one side of the power connection block is provided with a connecting groove, one end of the connecting groove is uniformly provided with a plurality of iron rods, the other ends of the iron rods are fixed on the other side of the inside of the frame body, and tungsten filaments are arranged among the iron rods. And the other end of the tungsten filament is also fixed on the other side in the frame body. According to the single-layer charge module provided by the utility model, through the arrangement of the through groove, after the power connection block is disconnected from the iron rod and the tungsten filament, gas is blown into the iron rod and the tungsten filament from the through groove, dust on the iron rod and the tungsten filament is completely blown out, the cleaning efficiency is improved, and the use efficiency of the charge module is improved.

The utility model provides a novel tungsten filament surface zinc and silicon dioxide particle composite plating device. The novel tungsten filament surface zinc and silicon dioxide particle composite plating device comprises a flushing assembly, a screening assembly and a backflow assembly, the flushing assembly comprises a flushing pool, a water spraying pipe is arranged on the upper portion of the inner side wall of the flushing pool, and a plurality of nozzles are connected to the side wall of the water spraying pipe; the screening assembly comprises a filtering membrane, and the filtering membrane is arranged on the lower side of the interior of the flushing pool; and the backflow assembly is used for extracting and conveying the filtered electroplating liquid. According to the device disclosed by the utility model, the tungsten filament subjected to composite plating is placed in the flushing tank, water flow is sprayed out from the nozzles after passing through the water spraying pipe, the tungsten filament is flushed, electroplating liquid brought out by the tungsten filament is removed, the water flow containing the electroplating liquid falls on the filter membrane, the electroplating liquid is filtered out, and then the electroplating liquid is conveyed back into the electroplating bath by the pump body 1. Therefore, the tungsten filament is quickly cleaned, the carried electroplating liquid flows back to the electroplating bath, and the problem of waste of the electroplating liquid is avoided.

The invention discloses a PVB film wire distributing device and method, and relates to the technical field of PVB film machining, the PVB film wire distributing device comprises a main body arranged on a workbench and a wire feeding mechanism arranged on the main body and used for conveying tungsten wires, the main body is further provided with a pressing wheel and a heating mechanism, and the pressing wheel is rotationally connected to the main body and used for forcing the tungsten wires to be embedded into a PVB film; the heating mechanism is used for heating the pressing wheel, and in the process that the pressing wheel forces the tungsten filament to be embedded into the PVB film, the pressing wheel heats the PVB film. According to the PVB film wire distribution device and method, when the main body is close to the PVB film, a tungsten wire can be forced to be embedded into the PVB film through the pressing wheel, in the moving process of the main body, the pressing wheel can move on the PVB film and distribute the tungsten wire, in the tungsten wire distribution process, the pressing wheel can heat the PVB film so as to reduce the hardness of the PVB film, and the PVB film is prevented from being damaged. Therefore, the difficulty that the tungsten filament is embedded into the PVB film is reduced, the pressing wheel can keep small pressure so that the tungsten filament can be tightly embedded into the PVB film, and the filament distribution efficiency is further improved.

The invention relates to the technical field of metal wire deep processing, in particular to aquadag for superfine tungsten filament high-temperature drawing and a preparation method of the aquadag. The preparation method comprises the following steps: adding a dispersing agent, ammonia water and graphite powder into ultrapure water, pre-dispersing by using a dispersing disc, adding a stabilizer, a lubrication enhancer, a thickening agent and an adhesive, uniformly mixing, and sanding the mixed solution in a sand mill to obtain aquadag; according to the aquadag for high-temperature drawing of the superfine tungsten filament and the preparation method of the aquadag, the aquadag has good storage stability and excellent lubricating effect, in the high-temperature drawing process of the tungsten filament, the aquadag can uniformly cover the surface of the tungsten filament to form a compact graphite layer, and the superfine tungsten filament obtained after high-temperature drawing is small in wire diameter (smaller than or equal to 36 micrometers), large in ring diameter (larger than or equal to 30 mm) and low in wire drawing breakage rate (2.1%); the wire drawing qualification rate is high (92.6%), and the method is suitable for large-scale drawing production of superfine tungsten wires; the aquadag has few organic components, ash content generated after high-temperature drawing is low, the production method is simple, and the cost is low.

The utility model discloses a device for preparing a thin film material by thermal evaporation and electron beam composite epitaxial deposition, which comprises a rack main body, a vacuum cavity and a vacuum pump, the vacuum pump is used for vacuum operation in the vacuum cavity, a cover body is arranged on the vacuum cavity, and the device also comprises a variable temperature sample table arranged in the vacuum cavity, the electron beam evaporation structure is mounted, and a deposition preparation source material is placed; the resistance heat evaporation source is arranged in the vacuum cavity and located under the variable-temperature sample table, the electron beam evaporation structure comprises a sample support, a substrate embedded in the upper surface of the sample support and a tungsten filament clamping plate used for installing a plurality of groups of tungsten filaments, and the tungsten filaments emit electrons to bombard the sample support to heat and prepare a thin film material. The device can support two film material preparation methods of thermal evaporation and electron beam evaporation at the same time, so that the purpose of multifunctional deposition epitaxy is achieved, and material preparation under different process requirements can be met.

The utility model relates to the technical field of diamond wire processing equipment, in particular to a tungsten filament multi-wire sanding device, which is characterized in that a washing and drying mechanism comprises a second washing tank and a plurality of baking ovens which are sequentially connected along the moving direction of a diamond wire; the second washing tank comprises a second cold water tank, an ultrasonic cleaning tank and a second hot water tank which are sequentially arranged in the moving direction of the diamond wire, and a fourth ultrasonic vibration plate is arranged in the ultrasonic cleaning tank. A plurality of diamond wires are subjected to cold water cleaning, ultrasonic cleaning and hot water cleaning, so that the diamond wires are cleaned for multiple times, stains on the surfaces are removed, and the cleaning efficiency of the diamond wires is greatly improved. Besides, after water washing is completed, the diamond wires sequentially penetrate through the multiple baking boxes, the surfaces of the diamond wires are fully dried, drying can be more thorough, and automatic water washing and drying treatment on the diamond wires is achieved under the cooperation of the groove bodies and the multiple baking boxes.

The present invention belongs to the technical field of tungsten filaments, and specifically relates to a laves-phase precipitation-strengthened tungsten filament comprising a tungsten matrix, oxides dispersed therein, and an in-situ formed laves-strengthening phase. The laves-strengthening phase comprises NiW2, WFe2, and WZr2; the oxides are ZrO2 and CeO2. In the laves-phase precipitation-strengthened tungsten filament, the Ni content is 0.2-0.6 wt%, the Fe content is 0.2-0.6 wt%, the Zr content is 0.3-0.8 wt%, the Ce content is 0.1-1.2 wt%, and the balance is tungsten. The present invention also relates to an in-situ synthesis method for the tungsten filament. The process described in the present invention can improve the performance of the tungsten filament.

The invention relates to a tungsten filament drawing gradient lubricating layer and a preparation method and application thereof. The tungsten filament drawing gradient lubricating layer is located on the surface of a tungsten filament base body and sequentially comprises a first alloy layer, a second alloy layer and a graphite lubricating layer from inside to outside. Wherein a first metal in the first alloy layer comprises one or two of nickel, zinc, tin and indium, a second metal in the second alloy layer comprises one or two of cobalt, copper, molybdenum and yttrium, and the first metal and the second metal are made of different materials.

The invention provides a rapid cooling device for tungsten filament machining, and relates to the field of tungsten filament machining, the rapid cooling device comprises a bearing support, a bearing hollow shell is fixedly connected to the top of the bearing support, a plurality of bearing holes are formed in the two sides of the inner wall of the bearing hollow shell, and two assembling rollers are rotationally connected between the two sides of the inner wall of the bearing support; the outer side walls of the assembling rollers are fixedly sleeved with two assembling chain wheels, the assembling chain wheels on the two assembling rollers are in transmission connection through assembling chains, and a metal conveying belt is fixedly connected between the two assembling chains. The driving motor drives the driving belt wheel to rotate, then the driving belt wheel drives the moving pipe on the moving belt wheel and the multiple moving sprayers to be adjusted to a proper angle for spraying cooling through the belt, materials are cooled according to needs, meanwhile, unevenness of the materials after collision is reduced, and therefore the using effect is improved.

The invention relates to the technical field of precise printing screen manufacturing, in particular to a plating tungsten steel composite silk screen which comprises a silk screen plate and a frame. The wire mesh plate is of a wire mesh structure formed by interweaving warps and wefts, the wire mesh structure in the wire mesh plate is in plain weaving or twill weaving, the warps and the wefts are tungsten wire core materials manufactured through hot rolling, rotary swaging and wire drawing processes, and metal coatings are arranged on the surfaces of the tungsten wire core materials. The soft metal coating is arranged outside the tungsten filament core material, abrasion to precise parts such as a steel buckle and a yarn guide needle is greatly reduced, maintenance and replacement cost is reduced, the soft metal coating has a certain lubricating effect, silk threads are smoother in the weaving process, the phenomena of silk breakage and jamming are possibly reduced, and the service life of the silk threads is prolonged. The weaving speed and production efficiency are improved, the product yield is improved, the silk screen is simple in structure and can be achieved through a mature electroplating or chemical plating process, complex production steps are not increased, and industrial popularization is facilitated.

The invention discloses a superfine tungsten wire rope linear preparation device and method for a superfine annular fretsaw, a tungsten wire rope is composed of a first wire and a plurality of second wires spirally wound on the first wire, the preparation device comprises a second straightening machine, two sets of second straightening parts are arranged on the second straightening machine, a second passing space is formed between the two sets of second straightening parts, and a first passing space is formed between the first straightening part and the second straightening part; when the tungsten filament rope passes through the second passing space and is mutually extruded and straightened by the second straightening wheel, the second straightening machine rotates around the tungsten filament rope, and the rotating direction is the same as the spiral direction of the second filament; the straightened tungsten filament rope enters a setting machine, and the setting machine applies a set temperature to the tungsten filament rope, so that the internal stress of the second filament is effectively eliminated, and finally, the second filament is bent and set to be in a stable spiral state, and filament jumping in the subsequent manufacturing process is avoided; according to the method, the technological method of straightening, rotary straightening and heating shaping is adopted, and the technical problems that the tungsten filaments are prone to bounce, and the annular wires are difficult to be woven through a disassembling and weaving method are solved.

The invention provides rare earth oxide doped tungsten powder and a preparation method and application thereof, and belongs to the field of powder metallurgy, and the preparation method of the rare earth oxide doped tungsten powder comprises the following steps that ammonium paratungstate is subjected to pre-calcination treatment to obtain a porous precursor; preparing rare earth nitrate into a rare earth nitrate solution, mixing the porous precursor with the rare earth nitrate solution, carrying out ball milling treatment, and drying to obtain a mixed material; and the mixed material is subjected to hydrogen reduction treatment, reduction is conducted in a low-temperature area of 500-650 DEG C firstly, then the temperature is increased to a high-temperature area of 700-950 DEG C for reduction, and the rare earth oxide doped tungsten powder is obtained. When the obtained tungsten powder is applied to tungsten filament preparation, the higher drawing yield is shown, and the mechanical property of tungsten filaments is remarkably improved.

The tungsten filament curvature detection device comprises a wire wheel structure and a detection structure, the detection structure comprises a detection support, a clamping structure arranged on the detection support, and a detection shaft detachably arranged on the clamping structure. The wire wheel structure comprises a pay-off structure and a take-up structure, the tungsten filament is paid off from the pay-off structure and enters the take-up structure after surrounding the detection shaft, and the diameter of the detection shaft is the bending diameter of the tungsten filament. The tungsten filament continuously surrounds between the two wire wheel structures, the bending degree of the tungsten filament is detected through the detachable detection shaft, and the bending diameter is conveniently adjusted.

The invention provides a recovery method of a tungsten diamond wire. The recovery method comprises the following steps: mixing a tungsten filament diamond wire with an acid solution, and heating for reaction to form the tungsten filament wire, a nickel-containing salt solution and diamond precipitate; wherein the tungsten filament diamond wire comprises a tungsten filament and a coating layer coated on the surface of the tungsten filament, and the coating layer comprises a nickel metal layer and diamond particles embedded in the nickel metal layer; mixing the nickel-containing salt solution with carbonate to form nickel carbonate precipitate; mixing the nickel carbonate precipitate with sulfamic acid to prepare nickel sulfamic acid; wherein the heating temperature ranges from 20 DEG C to 80 DEG C. The recycling method is free of waste gas emission in the recycling process, simple in technological process, low in energy consumption and suitable for industrial large-scale application.

The application belongs to the field of food processing, and discloses a ceramic grinding, curing and sterilizing integrated device and a production process. The technical scheme of the application comprises a fixed grinding disc and a movable grinding disc. The fixed grinding disc and the movable grinding disc are made of silicon carbide. The fixed grinding disc is internally provided with a fixed grinding disc annular groove. The fixed grinding disc annular groove is internally provided with a fixed grinding disc heating tungsten wire. The fixed grinding disc is provided with a fixed grinding disc heating tungsten wire connector. The fixed grinding disc heating tungsten wire connector is connected with the fixed grinding disc heating tungsten wire. The surface of the fixed grinding disc is provided with a fixed grinding disc groove. The device can combine the roasting and grinding of materials, reduce the process flow of food grinding, reduce the cost and process of pre-roasting, eliminate the waste of food, electricity and manpower and the oxidation occurring in the pre-roasting process, realize high-temperature enzyme inactivation and material antibacterial and bacteriostatic purposes in the roasting process, and enable the device to synchronously complete the four processes of grinding, curing, sterilization and enzyme inactivation at one time.

The utility model discloses a cluster ion focusing and shaping device, which comprises a pipeline and a nozzle, the nozzle is arranged at one end of the pipeline, mutually parallel deflection plates I are arranged at the other end in the pipeline, mutually parallel deflection plates II are arranged in the pipeline on one side, far away from the nozzle, of the deflection plates I, and the deflection plates II are arranged on the other side of the pipeline. A third deflection plate parallel to the first deflection plate is arranged in the pipeline on the other side of the second deflection plate, shielding plates are arranged on the two sides of the third deflection plate, the two sides of the second deflection plate and the two sides of the first deflection plate, a permanent magnet is arranged at the bottom end in the pipeline on the other side of the generation chamber, a tungsten filament block is arranged in the groove, and a sealing gasket is arranged in the groove in the top of the tungsten filament block. And a cover plate is arranged at the top of the sealing gasket. Under the action of the deflection plate I, the deflection plate II and the deflection plate III, the deflection effect can be improved, and the tungsten filament block can be conveniently maintained and replaced during use.

The invention provides a boron aggregate for a microgravity combustion experiment as well as a preparation method and application of the boron aggregate. The agglomerate is formed by agglomerating and dispersing high-purity amorphous boron on ethyl acetate and then drying, and is fixed on the annular structure of the tungsten filament in a spherical shape, the porosity is 48.19 + / -5%, the particle sizes comprise 5 mm and 3 mm, and the surface is coated with a paraffin coating layer with the thickness of 0.12 mm, so that the agglomerate can be effectively prevented from being contacted with air and water vapor to be oxidized during storage, and the service life of the agglomerate is prolonged. And the fixation of the boron aggregate and the tungsten filament structure is ensured. The preparation process of the aggregate comprises the three steps of tungsten filament supporting structure manufacturing, original boron aggregate manufacturing and paraffin surface coating, an obtained boron aggregate sample can be fixed to a gas phase flame burner through annular structures at the two ends, and the aggregate has the outstanding advantages of being stable in storage, rapid in ignition, stable in combustion and the like; the device can effectively meet the application requirements of the space microgravity experiment on sample transportation safety, space positioning accuracy and stable and splashing-free combustion, and provides reference for efficient preparation of boron aggregates in the microgravity combustion experiment.

The utility model relates to tungsten filament processing technical field discloses tungsten filament fine wire surface treatment device, including processing frame, the top of processing frame is provided with the U type board, the top fixedly connected with servo motor has at the U type board, the output of servo motor penetrates U type board and fixedly connected with cylinder half gear, the bottom of U type board is opened with T type groove, the inside slide connection has T type block at T type groove, the bottom fixedly connected with rack has at T type block, the rack is engageded with cylinder half gear, the bottom fixedly connected with connecting rod has at rack, the outside slide connection has hollow pole at connecting rod. In the utility model, the impeller can rotate with the fluid influence and can drive the connecting pipe to rotate, the hollow box can drive the aeration pipe to rotate, and the servo motor can drive the cylinder half gear to rotate, the flow of the processing liquid can be further promoted, and every tungsten filament fine wire can be treated uniformly.

The invention mainly relates to the technical field of silicon wafer cutting, and provides a cutting fluid for tungsten wire diamond wire cutting, a preparation method and application, the cutting fluid for tungsten wire diamond wire cutting comprises 10-30 wt% of a cutting drag reducer, 15-30 wt% of a wetting agent, 0.5-5 wt% of a dispersant, and the balance of water; the cutting drag reducer is a polyethylene oxide, polypropylene oxide and polypropylene oxide butane copolymer; the wetting agent comprises narrow-distribution fatty alcohol-polyoxyethylene ether, and the dispersing agent comprises at least one of dialkyl dimethyl quaternary ammonium salt and dicoconut oil alkyl dimethyl ammonium chloride. According to the cutting fluid for tungsten wire diamond wire cutting, the lubricating performance of a tungsten wire diamond wire in the retracting process can be improved, the wire clamping phenomenon is effectively reduced, the high yield is guaranteed, and the industrial application prospect is large.

A die changing structure of a tungsten filament spool forming machine relates to the technical field of spool forming machines and comprises a base and a top plate arranged above the base, a lower mounting seat is fixedly mounted on the upper end face of the base, a detachable lower die is mounted in an inner cavity of the lower mounting seat, an upper mounting seat is arranged below the top plate, and a lower die is mounted in an inner cavity of the upper mounting seat. A detachable upper mold is mounted in an inner cavity of the upper mounting base, sliding limiting inserting blocks are arranged on the two sides of the inner cavity of the lower mounting base and the two sides of the inner cavity of the upper mounting base correspondingly, the inserting blocks synchronously move through transmission structures in the lower mounting base and the upper mounting base, inserting grooves are formed in the two sides of the lower mold and the two sides of the upper mold correspondingly, and the inserting grooves are matched with the inserting blocks in an inserted mode; according to the scheme, the problem that deviation is likely to be generated between an upper mold and a lower mold after replacement due to the poor positioning and locking effect of a mold installation structure is solved.

The invention provides a tubular evaporation fabric based on graphene modified PVA (Polyvinyl Alcohol) coated tungsten filaments and a preparation method of the tubular evaporation fabric. According to the tubular evaporation fabric, tungsten filaments 1 serve as core yarn, graphene modified PVA yarn 2 serves as an outer cladding layer, covering yarn is prepared through ring spinning, and then a hollow tubular structure is formed through weaving; the tungsten filament core yarn layer is a high-thermal-conductivity tungsten filament subjected to acid pickling and nickel layer sputtering treatment; the graphene modified PVA outer wrapping layer is quantitative roving made of graphene modified PVA short fibers, the tungsten filament core yarn and the graphene modified PVA outer wrapping layer are adopted to form a heat conduction / hydrophilic synergistic structure in cooperation with a hollow circular tube shape of a twill change structure, efficient photo-thermal evaporation performance is achieved, and evaporation efficiency reduction caused by local heat accumulation can be prevented; through the axial efficient heat conduction of the tungsten filament and the capillary water conveying capacity of the outer wrapping layer, heat can be guided to be evenly conducted, water can be directionally transmitted, salt crystal deposition in the high-salt environment is effectively avoided, and the high-salt-resistant tungsten filament composite membrane is suitable for seawater desalination and high-salt wastewater treatment scenes.

The utility model discloses a tungsten filament cold drawing control device which comprises a base, a cold drawing die is arranged on the upper side of the base, a storage box is arranged on the upper side of the cold drawing die, a conveying pump is arranged on the upper side of the storage box, baffles are arranged on the two sides of the cold drawing die, driving pieces are arranged on the outer sides of the baffles, the driving pieces are connected with driving teeth, and the driving teeth are connected with the conveying pump. The tungsten filament cold drawing device relates to the technical field of tungsten filament cold drawing, and has the beneficial effects that the arc-shaped frame is additionally arranged on the cold drawing grinding tool, and a plurality of groups of atomizing nozzles are additionally arranged in the arc-shaped frame, so that a lubricating agent can be uniformly sprayed on the surface of a tungsten filament, the cold drawing effect can be improved, and when the drawing speed is changed, the atomizing nozzles can be uniformly sprayed on the surface of the tungsten filament. Operation of the driving part can be controlled according to the drawing speed, the spraying angles of the arc-shaped frame and the atomizing nozzle can be changed by matching with the driving teeth and the driven teeth, the initial speed direction of lubricant liquid drops is closer to the axis of a tungsten filament, splashing loss is reduced, and the subsequent cold drawing effect is guaranteed.

The utility model relates to the technical field of wire electroplating, in particular to an electroplating device for a diamond wire, which comprises an electroplating box, a plating bin is arranged at one end in the electroplating box, a combination bin is arranged at the other end in the electroplating box, a first power supply is mounted at one end of the plating bin, and a fixing clamp and a connecting clamp are mounted in the plating bin. A sand feeding frame is mounted in the combination bin; a second power supply is mounted at one end of the combination bin; the electroplating device has the beneficial effects that a nickel plate can be fixedly clamped in the fixing clamp, meanwhile, a tungsten filament ring is fixed in the connecting clamp, then the nickel plate and the tungsten filament ring are both arranged in electroplating liquid in the plating bin, and then the first power supply is turned on, so that the surface of the tungsten filament ring is plated with a nickel layer; then the electroplated tungsten filament is connected with a connecting clamp in a combination bin and embedded in a sand feeding frame, a nickel plate is clamped in a fixing clamp in the combination bin, then the nickel plate and the sand feeding frame are placed in electroplating liquid in the combination bin, a second power source is turned on, and a nickel layer is continuously electroplated while sand feeding is conducted, so that the diamond particles are wrapped with the nickel layer, and the diamond particles are thickened.

The utility model relates to the technical field of tungsten filament drawing processing, and discloses a tungsten filament heating assembly which comprises a heat conduction pipe and a plurality of electric heating pipes distributed parallel to the axis of the heat conduction pipe, a cylindrical heating cavity is formed in the center of the heat conduction pipe, and a filament inlet notch communicated with the heating cavity is formed in the side face of the heat conduction pipe. The electric heating pipes are arranged in the heat conduction pipes and distributed on the periphery of the heating cavity. The tungsten filament heating device has the beneficial effects that a single tungsten filament can be independently heated, and the heating is more uniform and stable.