102 results about "Tungsten filament" patented technology

The invention relates to an ultrafine high-strength multi-component composite reinforced tungsten filament and a preparation method thereof, the tungsten filament comprises W, rare earth oxide (any one of La2O3, Y2O3 and CeO2) and alloy elements (Al, Si, K and Zr), the content of the rare earth oxide in the tungsten filament is 0.1-1.0 wt%, and the content of Al in the alloy elements is 0.025-0.05 wt%, the content of Si is 0.1-0.2 wt%, the content of K is 0.28-0.56 wt%, the content of Zr is 0.1-0.5 wt%, and the balance is W. The wire diameter of the tungsten filament is 28-30 [mu] m; the tensile strength of the tungsten filament is more than 7100 MPa, and the length of a single tungsten filament is more than 150 thousand meters. According to the tungsten wire, through multi-phase composite doping, the purpose of synergistic strengthening such as nano-particle dispersion strengthening, fine grain strengthening and grain boundary strengthening is achieved, and the superfine high-strength tungsten alloy wire with good toughness can be obtained.

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 provides a tungsten filament wire guide pulley convenient to install, which comprises a pulley central tube, pulley outer rings, a rotatable support reinforcing rod structure and a supportable reinforcing frame structure, and the pulley outer rings are respectively arranged at the front end and the rear end of the outer ring of the pulley central tube. The pulley center pipe, the pulley outer ring, the reinforcing frame, the inserting block, the fixing rod and the supporting roller are arranged in a matched mode, the pulley outer ring can be arranged at the upper end of the supporting roller in the using process, supporting work can be conveniently carried out in the using process, and meanwhile the carrying force of the pulley can be conveniently improved; the pulley center pipe, the pulley outer ring, the shielding plate, the handheld plate, the reinforcing rod and the contact ball body are arranged in a matched mode, the reinforcing rod can penetrate through the middle position of the interior of the pulley center pipe in the using process, the movable pulley can be conveniently lifted to move in the mounting process, and meanwhile the pulley center pipe can be conveniently reinforced through the reinforcing rod.

1. Name of the Design Product: Aromatherapy Tungsten Filament Lamp. 2. Use of the Design Product: For aromatherapy and night light illumination. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.

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 invention discloses a ground simulation satellite and a triaxial centroid fine tuning mechanism thereof, comprising a satellite integral frame, the top of the satellite integral frame is provided with a tungsten filament clamping member housing, the interior of the satellite integral frame is provided with a centroid fine tuning mechanism, the top of the centroid fine tuning mechanism is provided with a horizontal centroid adjusting mass block, and the horizontal centroid adjusting mass block is provided with a tungsten filament clamping member housing. A horizontal mass center adjusting mass block base is mounted on the lower surface of the horizontal mass center adjusting mass block; the three-axis adjusting structure is arranged, the adjusting direction of the horizontal mass center adjusting mechanism is arranged along the X-axis and the Y-axis of the satellite, the horizontal direction position of the mass block can be adjusted, then the mass center of the satellite in the X-axis and the Y-axis is adjusted, the adjusting direction of the vertical mass center adjusting mechanism is arranged along the Z-axis of the satellite, and the vertical direction position of the mass block can be adjusted. And the horizontal mass center adjusting mechanism and the vertical mass center adjusting mechanism are matched with each other, so that three-axis adjustment is realized.

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 utility model discloses a tungsten wire diamond wire drying box which comprises a box body, a heating assembly, an axial flow fan and a temperature controller. The box body comprises a shell, an inner container and a plurality of interlayer frames. The inner container and the shell are arranged in the shell in a matched mode, and the interlayer frames are evenly arranged between a left side plate and a right side plate of the inner container. The heating assembly comprises a plurality of electric heating pipes and thermocouples; the plurality of electric heating pipes are uniformly arranged in the interlayers at the left, right and bottom of the liner; the thermocouples are evenly arranged on any side of the inner container at intervals, the axial flow fan is arranged in the center of the top of the box body, and the temperature controller is arranged on one side of a front panel of the box body. The wire drying device is simple in structure and convenient to manufacture, and the cleanliness of wires is guaranteed through drying in the closed box body; the axial flow fan is matched with the inner container structure, internal hot air flows evenly, the temperature field in the box body is even and stable, it is guaranteed that the drying effects of different parts on the tungsten wire diamond wire reel are consistent, and the product quality is guaranteed.

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 present invention discloses a highly efficient tungsten filament cleaning device, comprising a shielding plate and a placement roller. The placement roller is used to place the tungsten filament to be cleaned. Both ends of the placement roller are rotatably connected to a cleaning box. The top of the cleaning box is rotatably connected to the shielding plate. The cleaning box is fixedly connected to an assembly component near the placement roller. The outer surface of the cleaning box is fixedly connected to a flushing component. The flushing component is fixedly connected to a protective component near the placement roller. The present invention relates to the field of tungsten filament cleaning technology. The highly efficient tungsten filament cleaning device allows staff to inspect the internal components of the device at any time. The filter plate in the cleaning box can filter the water flow dropped from the flushing component, preventing impurities from accumulating on the surface of the filter plate and causing blockage that affects the filtration of the flushing liquid, thereby improving the cleaning quality of the tungsten filament. The tension force during tungsten filament cleaning can be adjusted to prevent the tungsten filament from breaking during cleaning.

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 the field of hard and brittle material cutting tools, in particular to a carbon fiber wire harness cutting wire which comprises a base material composed of a plurality of wire harnesses formed by twisting carbon fiber monofilaments with the surfaces coated with metal layers. And the abrasive coating coats the outer part of the base material, and abrasive particles are embedded in the abrasive coating. The carbon fibers with smaller diameter and higher tensile strength are adopted as the base material, the cutting speed higher than that of steel wires with the same diameter can be adopted, the carbon fibers with the smaller diameter can be adopted for cutting under the requirement for the same tension, the carbon fibers are low in density, the mass of the carbon fibers with the same size is far smaller than that of tungsten filaments, and the cost is greatly reduced. A metal layer with a certain thickness is arranged on the surface of the carbon fiber monofilament, and the metal layer has good plastic deformation capacity, so that the carbon fiber monofilament can be twisted into a rope bundle, the monofilament is prevented from being broken due to uneven stress, and the high strength of the carbon fiber cutting filament is kept. And abrasive particles directly participate in cutting, so that the service life of the cutting wire is effectively prolonged.

The invention belongs to the technical field of waste tungsten filament recycling, and particularly relates to a waste tungsten filament recycling method. The recycling method of the waste tungsten filament comprises the following steps that the cleaned waste tungsten filament is subjected to electric explosion in a liquid carbon source, and mixed slurry is obtained; the liquid carbon source comprises an organic solvent which is in a liquid state at normal temperature and normal pressure; and carrying out solid-liquid separation on the mixed slurry, and carrying out carbonization treatment on the obtained solid by adopting a gaseous carbon source at normal temperature and normal pressure to obtain tungsten carbide-containing powder. According to the clean, efficient and environment-friendly waste tungsten filament recycling method, the cleaned waste tungsten filaments are placed in a liquid carbon source (which is a liquid organic solvent at normal temperature and normal pressure) for electric explosion, carbonization treatment is performed after solid-liquid separation, and tungsten carbide-containing powder can be obtained. The recycling method is short in process, simple and low in cost, and the purpose of industrially and rapidly recycling the waste tungsten filaments can be achieved. And moreover, no acid-base reagent is needed, so that the method is environment-friendly.

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 provides a pre-pressing distance device of a tungsten filament and a pre-pressing method of the tungsten filament of a surgical instrument.The pre-pressing distance device of the tungsten filament is applied to the surgical instrument, the surgical instrument comprises a fiber tube and the tungsten filament which are connected, and the pre-pressing distance device comprises a base; the fiber pipe fixing part is arranged on the base and is used for fixing a fiber pipe; the distance determining part comprises a plurality of moving blocks which are arranged at intervals, each moving block is provided with a plurality of fixing grooves for fixing a plurality of tungsten filaments, and the plurality of moving blocks can define a plurality of tungsten filaments with different lengths. According to the embodiment of the invention, the length of the corresponding tungsten filament is limited through the position of each moving block, so that the tungsten filaments can be arranged in the corresponding fixing grooves after the preset lengths of the tungsten filaments are limited by the moving blocks at the same time, the tungsten filaments can be pre-pressed, the distance determining part does not need to be adjusted for multiple times, and the machining efficiency is improved.

The utility model provides a tungsten filament wire guide pulley testing mechanism which comprises a fastening plate, and the left side and the right side of the upper surface of the fastening plate are respectively connected with a supporting plate through bolts. The upper surface of the supporting plate is in bolted connection with a top plate, and meanwhile the lower portion of the inner surface of the supporting plate is in bolted connection with a sliding rod. Lifting air cylinders are connected to the left side and the right side of the upper surface of the top plate through bolts correspondingly. According to the utility model, the extension plate, the protection plate, the linear motor, the telescopic cylinder and the barrier plate are arranged, so that the pulley with the tungsten filament wire can be placed through the telescopic cylinder and the barrier plate, and the pulley with the tungsten filament wire can be driven to stretch and retract by starting the telescopic cylinder; and the linear motor can drive the pulley with the tungsten wire to move left and right, and the linear motor can be fixed by matching the extension plate with the protective plate, so that the pulley needs to be moved in the pulley detection process, and the problem of poor pulley moving effect still exists in the existing scheme.

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.