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56results about How to "Reduce disconnection rate" patented technology

Novel four-column four-roller pressing type multi-wire cutting equipment

The utility model discloses novel four-column four-roller pressing type multi-wire cutting equipment which comprises a four-column multi-wire mechanism and an up-down feeding frame main body, and the four-column multi-wire mechanism formed by a left column assembly, a right column assembly, a connecting cross beam and a connecting longitudinal beam provides support for the up-down feeding frame main body; the up-down feeding frame main body comprises a left main body frame, a right main body frame, a feeding cross beam, a cutting main roller, a main shaft box, a driven shaft box, a take-up and pay-off mechanism, a wire arranging mechanism, a tensioning mechanism and a wire guide wheel mechanism; the take-up and pay-off mechanism, the wire arranging mechanism, the tensioning mechanism and the wire guiding wheel mechanism sequentially form a take-up and pay-off system and are symmetrically installed on the two sides of the up-down feeding frame body respectively. The integral structure is more reasonable, the stability of a machine tool system is improved, the production technological process is reduced, the machining efficiency is improved, the line breakage rate is reduced, and the requirement of the market for one-time stable machining of oversized stone is fully met.
Owner:ZHENGZHOU JIUHUI NEW MATERIAL TECH CO LTD

Inner shuttle structure of sewing machine

The utility model provides an inner shuttle structure of a sewing machine, and belongs to the technical field of sewing machine accessories. The problem that in the prior art, thread throwing is prone to being generated in the sewing process is solved. The inner shuttle structure of the sewing machine comprises a cylindrical inner shuttle body, the outer edge of the inner shuttle body is provided with a needle falling groove and an anti-injury protruding edge arranged in the radial direction of the inner shuttle body in a protruding mode, the inner edge of the inner shuttle body is provided with a protruding block, and the protruding block and the anti-injury protruding edge are located on the same side of the inner shuttle body. A blocking face and a guiding face which intersect with the inner edge face of the inner shuttle body are arranged on the sides, close to and away from the needle falling groove, of the protruding block respectively, the guiding face and the blocking face are in smooth transition connection, and the included angle between the guiding face and the inner edge face of the inner shuttle body is an obtuse angle. The included angle between the blocking face and the inner edge face of the inner shuttle body is smaller than the included angle between the guide face and the inner edge face of the inner shuttle body. The sewing machine has the advantages that the probability of thread throwing and thread breaking in the sewing process can be effectively reduced, and the sewing quality is improved.
Owner:WUXI PINYI SEWING MASCH CO LTD

Control method for reducing wire breakage caused by insufficient cutting force

The invention provides a control method for reducing wire breakage caused by insufficient cutting force, which comprises the following steps of: based on the diameter of a crystal bar, dividing the cutting depth into a plurality of equal feeding positions; in the cutting process, the machine speed and / or the wire using amount and / or the tension are / is controlled to be adjusted along with the increase of the cutting feeding position, so that the acting force of the crystal bar on the diamond wire is reduced. According to the control method for reducing wire breakage caused by insufficient cutting force, the cutting process is optimized, the technical problem that the cutting force of a diamond wire is insufficient is solved to the maximum extent, the cutting quality is improved, the wire breakage rate is reduced to 0.75% from 4.28% at present, the cutting efficiency is improved, and the production cost is reduced.
Owner:ZHONGHUAN ADVANCED SEMICONDUCTOR TECHNOLOGY CO LTD

Assembly line type diamond wire stone cutting machine

The invention belongs to the field of stone cutting machines, and provides an assembly line type diamond wire stone cutting machine which comprises a base. The conveying mechanism is arranged on the base in a sliding manner; the main body mechanism is fixedly arranged on the base; the take-up and pay-off mechanism is fixedly arranged on the main body mechanism; the wiring mechanism is slidably arranged in the main body mechanism; when stone is conveyed and cut, the stone can be placed on the second conveying vehicle and the third conveying vehicle at the same time, then the second conveying vehicle and the third conveying vehicle synchronously rotate anticlockwise, and the stone is conveyed to pass through diamond wires on the two sides of the main body frame; the stone conveyed on the second conveying vehicle and the third conveying vehicle can be synchronously cut through the diamond wires on the two sides of the main body frame, so that the purpose of double-station synchronous cutting machining is achieved, the stone cutting efficiency is improved, a double-station machine is designed, the occupied area of a machine table is reduced, free combined cutting of multiple machines is achieved, and the production efficiency is improved. The use efficiency of a plant site is improved, and meanwhile, the machine cost is reduced.
Owner:HANGZHOU YUNJUN TECH CO LTD

Crystal pulling process control method, single crystal silicon rod process control device and crystal pulling system

The invention provides a crystal pulling process control method, a single crystal silicon rod process control device and a crystal pulling system.The method comprises the steps that a multi-physical-field coupling numerical model of a silicon melt in a single crystal furnace is constructed and used for reflecting the coupling relation among a pulsating velocity field, a temperature field and an electromagnetic field in the silicon melt; according to a preset simulation method and the multi-physics field coupling numerical model, a plurality of characteristic parameters corresponding to the silicon melt under a plurality of process conditions and a plurality of magnetic field structure parameters are generated, and the characteristic parameters are used for representing melt flow characteristics; and determining a target process condition and a target magnetic field structure parameter according to the plurality of characteristic parameters, the plurality of process conditions and the plurality of magnetic field structure parameters, and controlling the single crystal furnace to perform a crystal pulling process under the target process condition and the target magnetic field structure parameter. According to the method, the problem that the crystal quality cannot be guaranteed due to a czochralski method silicon single crystal rod growth process in the prior art is solved.
Owner:GUANGDONG GOKIN SOLAR ENERGY TECH CO LTD +1

Sound production unit

The utility model discloses a sounding unit, including basin stand, magnetic circuit system, conducting centering disk and a plurality of voice coil, magnetic circuit system is connected basin stand, magnetic circuit system includes yoke, and the central magnetic subassembly and first side magnetic structure that are respectively provided on yoke, central magnetic subassembly is located between at least one group of two oppositely arranged first side magnetic structure, the central magnetic assembly comprises a plurality of central magnetic structures which are arranged side by side, the yoke is provided with a window, two opposite side edges of the window are respectively connected with flanges, and the flanges are provided with openings; the voice coils and the central magnetic structures are arranged in a one-to-one correspondence manner, and partial areas of the voice coils are located between the central magnetic structures and the flanges; the conduction centering disk comprises an inner mounting part, a cantilever part and an outer mounting part which are connected in sequence, a partial area of the cantilever part corresponds to the window and is located between the two flanges, one end of the inner mounting part penetrates through the opening and is fixedly connected with the voice coil, and the outer mounting part is connected with the basin stand. The sound production unit has high performance.
Owner:SHENZHEN SUNWAY ACOUSTICS TECH CO LTD

A roller screen printing device and method for photovoltaic cell grid lines

The present invention provides a roller screen printing device and method for photovoltaic cell grid lines, and relates to the field of photovoltaic solar cell manufacturing. The printing device includes a frame, a screen, a feeder, a roller, a scraper and a storage table. The feeder, the roller and the scraper can be installed on the frame in a lifting manner. The screen is arranged on the frame. The screen is provided with a slit line groove for adhering the slurry to the battery sheet to prepare the grid line of the battery sheet. The storage table is arranged below the screen for placing the battery sheet. The feeder is located above the screen for feeding the slit line groove. The roller is located above the screen for squeezing the slurry so that the slurry adheres to the battery sheet through the slit line groove. The present invention can increase the packing density of the solid content in the slurry, which is conducive to avoiding the slurry failing to completely enter the bottom of the battery velvet after printing, forming a void, and affecting the contact resistance. At the same time, the slurry is in close contact with each surface of the battery velvet, which helps to reduce the disconnection rate and contact resistivity, and improve the battery FF and photovoltaic cell conversion efficiency.
Owner:HA SHEN TECHNOLOGY CO LTD

Ultrafine copper wire and production method thereof

The invention discloses an ultra-fine copper wire and a production method thereof, and belongs to the technical field of copper wire production. The production method of the ultra-fine copper wire comprises the following steps: (1) continuously casting and rolling a copper rod, namely melting an electrolytic copper plate, deslagging and purifying to obtain a copper solution, continuously casting the copper solution to obtain a casting blank, and continuously rolling, acid-free cleaning and waxing the casting blank to obtain the copper rod; (2) continuous drawing and on-line annealing: the copper rod is subjected to multi-pass continuous drawing, in the drawing process, large drawing is carried out firstly, then medium drawing is carried out, on-line continuous annealing is carried out while medium drawing is carried out, and then small drawing is carried out, so that a small-drawn copper wire is obtained; and (3) micro-drawing and annealing are conducted, specifically, the small-drawn copper wire is subjected to micro-drawing till the average diameter is 0.03-0.05 mm, then annealing is conducted, and the ultra-fine copper wire is obtained. The ultra-fine copper wire obtained by adopting the production method provided by the invention is large in weight and large in elongation rate when being broken for the first time.
Owner:JIANGXI COPPER TECHNOLOGY RESEARCH INSTITUTE CO LTD +1

Mortar cutting fluid for 12-inch semiconductor wafer as well as preparation method and application of mortar cutting fluid

The invention relates to mortar cutting fluid for a 12-inch semiconductor wafer as well as a preparation method and application of the mortar cutting fluid. The mortar cutting fluid comprises the following components in parts by weight: 10-30 parts of polyethylene glycol; 30 to 60 parts of deionized water; 1-5 parts of a dispersant; 1-10 parts of a protective agent; and 5-20 parts of a cooling agent. The dispersing agent can ensure that the grinding material is uniformly distributed in a system, can be used as a protective colloid to wrap the grinding material and form a layer of lubricating film on the outer surface of the grinding material, so that the mortar system is more stable, and the fluidity of the mortar in the stirring process is also improved. Silicate and sulfate are adopted as the protective agent, so that the protective effect on the steel wire can be greatly improved, the wire breakage rate is effectively reduced, and the cutting cost is reduced. The cutting fluid provided by the invention has the advantages of good abrasive dispersibility, stable cooling performance and low line breaking rate.
Owner:ZHEJIANG AUFIRST MATERIAL TECH CO LTD

An infrared touch point positioning solution

The invention discloses an infrared touch point positioning scheme, comprising the following steps: setting the number of scanning directions k and the specific angle of each direction, setting a threshold value t1 of the number of unilaterally blocked light paths, a threshold value t2 of the number of different directions, and a threshold value t3 of the angle of light paths in different directions, performing a frame of scanning, counting the blocked light paths, and if both the X side and the Y side are blocked light paths at the moment, jumping to step S4, otherwise, if only the X side or the Y side is blocked light paths at the moment, the beneficial effects achieved by the invention include: the invention proposes a scheme idea of ​​performing point positioning only according to the X or Y unilateral light paths, and proposes a scheme idea of ​​judging whether to perform point positioning operation according to conditions such as the number of unilaterally blocked light paths and the angle between light paths with different slopes, thereby ensuring the accuracy of the final output point contour and point position, thereby reducing the probability of line breakage in fine pen writing, and at the same time being conducive to reducing the cost of the touch scheme (it can support reducing the number of lamp tubes), thereby achieving the purpose of improving the writing experience.
Owner:BEIJING QLTOUCH DEVICE CO LTD

Dental floss packaging and conveying device with thread breakage detection function

The present invention relates to the technical field of packaging and conveying equipment, and discloses a dental floss packaging and conveying device with a broken line detection function, comprising: a conveying mechanism, the top of which is set as a rigid conveying plane; a bearing platform, which is connected to the conveying plane, and on which dental floss sticks are placed; an image acquisition unit, which is set on the bearing platform and used to acquire images of the dental floss sticks on the bearing platform, and a controller obtains the number of dental floss sticks and the broken line position according to image information analysis. The present invention sets an image acquisition unit on the conveying device, uses the image acquisition unit to detect the dental floss sticks on the conveying mechanism, and analyzes the number of dental floss sticks and the broken line situation online, thereby improving the integration of the dental floss stick conveying device, ensuring that the number of dental floss sticks taken out during packaging meets the requirements, facilitating the removal and replenishment of broken dental floss sticks, reducing the broken line rate of dental floss sticks, and thus ensuring the quality of the finished dental floss product.
Owner:YANCHENG INST OF TECH

A method for preparing a diamond wire saw

The invention provides a preparation method of a diamond wire saw, comprising the following steps: pre-treating a wire matrix and then pre-plating the matrix; consolidating diamond powder to the surface of the wire matrix by electroplating, and further increasing the thickness of the coating; washing the wire matrix with water and then washing it with boric acid under ultrasonic conditions; immersing the wire matrix in an anti-corrosion solution, drying it, and then performing a heat treatment to obtain the diamond wire saw; the anti-corrosion solution comprises an organic acid, an unsaturated hydroxy acid, an unsaturated alcohol and water; the diameter of the wire matrix is ​​35-39 μm; the drying temperature is 100-200° C.; the drying time is 1-3 s; the heat treatment temperature is 40-80° C.; and the heat treatment time is 0.5-4 h.
Owner:CHANGSHA DIAT NEW MATERIAL SCI & TECH

Crystal bar locking device

The utility model relates to the technical field of single crystal transportation, and discloses a crystal bar locking device. The device comprises a bottom plate, limiting pieces are installed on the two sides of the top of the bottom plate, and the bottom plate is movably connected with limiting blocks through the limiting pieces; the connecting screw penetrates through the bottom plate, the buffer spring and the buffer flange, the buffer spring is located between the bottom plate and the buffer flange, the connecting screw is fixedly connected with the bottom plate, and the head of the connecting screw is clamped in an inner hole in the middle of the bottom plate. The problems that a mushroom head is seriously abraded, the stability is poor after a crystal support is attached, and a crystal bar is prone to being broken are solved, the crystal bar can be kept in a horizontal cutting state, the line breaking rate is reduced, meanwhile, through the buffering effect on the clamping moment, the stability and the high-quality cutting effect in the slicing process are ensured, and the production efficiency and the product quality are improved.
Owner:GUANGDONG GOKIN SOLAR ENERGY TECH CO LTD +1

Multi-wire cutting machine

A multi-wire cutting machine relates to the technical field of cutting equipment and comprises a structural part assembly, a tension system, a take-up and pay-off system, a wire arranging system, a wire guiding system, a nozzle assembly, a main shaft system and a workbench system are arranged on the structural part assembly, a cooling system is arranged at the bottom of the structural part assembly, and the nozzle assembly is arranged on the main shaft system. The multi-wire cutting machine is compact in structure, the main shaft system, the wire arranging system, the wire guiding system and the like are innovatively designed, so that equipment stably operates, and the yield of products cut by the multi-wire cutting machine is greatly improved.
Owner:HUNAN YUJING MACHINE

A combined super multi-color embroidery machine

The present invention discloses a combined super-multi-color embroidery machine, comprising a frame, a head component and a thread frame component, the head component comprising a head assembly fixed to the frame, a plurality of needle bar frames arranged side by side and movable laterally, a thread clamp and a color changing mechanism, the color changing mechanism comprising a first driving motor, a transmission mechanism connecting the needle bar frame and the first driving motor, the transmission mechanism comprising a transmission structure and a matching structure, the transmission structure rotates under the drive of the first driving motor, the matching structure slidingly matches with the transmission structure so that the matching structure moves left or right as the transmission structure rotates, the present invention has the beneficial effect of making color changing more stable, thereby reducing thread breakage rate and equipment failure rate.
Owner:ZHEJIANG YUELONG SEWING EQUIP

Double motor sewing machine

The utility model provides a kind of double motor sewing machine, including shell, lower motor is installed in the lower end inside shell back, the motor shaft front end of lower motor is connected with pinion, motor shaft sleeve is set on motor shaft, pinion and the large gear on the cloth feeding main shaft are mutually engaged, the drive gear is connected in the front end of cloth feeding main shaft, and the upper cloth feeding wheel is installed in drive gear by universal shaft connection;The drive gear on the cloth feeding main shaft and lower gear are mutually engaged, and lower gear is fixedly connected in the rear end of lower cloth feeding shaft, and lower cloth feeding gear is installed in the front end of lower cloth feeding shaft connection.The utility model, by setting the transmission structure that lower motor drives pinion and the large gear of cloth feeding main shaft engages, cooperate drive gear and universal shaft connection upper cloth feeding wheel, lower gear linkage lower cloth feeding shaft and lower cloth feeding gear, make upper and lower cloth feeding wheel rotate at the same speed, form the synchronous driving force of clamping cloth, realize parallel synchronous feeding, avoid cloth skew or wrinkle, improve sewing precision.
Owner:ZHONGSHAN GANGER MACHINERY TECHNOLOGY CO LTD

Method for reducing cutting stress in processing of AlN crystal

The present application relates to the field of aluminum nitride crystal growth processing, and particularly relates to a method for reducing cutting stress of AlN crystal processing. The method is as follows: a hollow cylinder as a buffer layer and an AlN crystal are both adhered to a metal plate through paraffin; then glue is poured into the hollow cylinder, so that the glue completely wraps the crystal; after the glue solidifies, the bottom of the metal plate is heated, the paraffin is melted, and then the metal plate is detached to obtain a sample to be cut; the sample is cut and the edge is trimmed to obtain a regular AlN wafer. The present application sets a buffer layer outside the AlN crystal to avoid damage of stress to the crystal; when the cutting line contacts the crystal, high stress is generated, the buffer layer can gradually release the stress and gradually transfer the stress to the crystal, so that the crystal can be simply and effectively protected, the crystal is prevented from cracking, and the complete AlN wafer can be cut; the buffer layer avoids the direct contact of the cutting line and the crystal, reduces the probability of cutting line breakage, and enables efficient cutting.
Owner:SHANDONG UNIV

Vertical loop line cutting device

The vertical loop line cutting device comprises a supporting structure and a cutting structure connected to the side face of the supporting structure. The supporting structure comprises a support, a sliding rail arranged on the side face of the support, a lifting block moving along the sliding rail and a lifting driving device driving the lifting block to move. The cutting structure comprises a cutting shell, a line wheel structure arranged in the cutting shell and a cutting line arranged along the line wheel structure; a cutting groove is formed in the lower portion of the cutting shell in an inwards-concave mode, and the cutting line penetrates through the cutting groove. The side face of the cutting shell is connected with the lifting block, the lifting block drives the cutting shell to move, and an object to be cut is cut by the cutting line after entering the cutting groove. By arranging the cutting structure which moves up and down along the supporting structure, a vertical knife entering mode is achieved, a notch is small, the risk that materials press and break lines is avoided, and the line breaking rate of loop lines is reduced.
Owner:ZHENJIANG YUANSHI ADVANCED MATERIALS CO LTD

A method for calculating seeding power, a method for determining seeding power and a device

The present invention provides a method for calculating seeding power, including: obtaining the last seeding power, the last average seeding pulling speed; obtaining the last shoulder height, the temperature adjustment time corresponding to the last seeding to the running time of this temperature adjustment, the weight of silicon liquid in the quartz crucible in the furnace corresponding to the last seeding, and the weight of silicon liquid corresponding to this temperature adjustment; obtaining the power change corresponding to the average seeding pulling speed change, and determining the seeding pulling speed and power change coefficient; obtaining the power change corresponding to the shoulder height change, and determining the shoulder height and power change coefficient; obtaining the power change corresponding to the running time change, and determining the running time and power change coefficient; obtaining the power change corresponding to the silicon liquid weight change, and determining the silicon liquid weight and power change coefficient; determining the seeding standard pulling speed and the shoulder standard height; inputting the above data into the seeding power calculation model, and calculating the current seeding power. The present invention improves the efficiency and accuracy of finding the seeding power.
Owner:四川永祥光伏科技有限公司

Seeding power determination method based on data driving and related device

The invention discloses a seeding power determination method based on data driving and a related device, and belongs to the field of czochralski single crystal in photovoltaics, the disclosed method comprises the following steps: determining whether a shouldering broken line occurs in the last crystal pulling process according to data of the last crystal pulling process; if the shouldering broken line does not occur, obtaining the seeding process in the last crystal pulling process, the process parameters of the shouldering process and the field parameters of the current crystal pulling, and determining the seeding power of the current crystal pulling according to the obtained parameters by utilizing a first seeding power model; and if the shouldering wire breakage occurs and the record of entering the equal-diameter working procedure in the furnace is not carried out, working procedure parameters of the seeding working procedure in the last crystal pulling process and the current crystal pulling field parameters are obtained, and the seeding power of the current crystal pulling is determined according to the obtained parameters by utilizing a second seeding power model. According to the method, automatic and intelligent determination of the seeding power based on data driving is realized, the determination accuracy of the seeding power is improved, meanwhile, the production efficiency of single crystals is improved, and the line breakage rate is reduced.
Owner:BAODING JING XIN SHI CHUANG ELECTRIC

Energy-saving and efficient wire drawing machine

The invention relates to the technical field of energy-saving and efficient wire drawing machines, and discloses an energy-saving and efficient wire drawing machine which comprises a wire drawing machine case, and a wire drawing coil is arranged at one end of the wire drawing machine case and used for storing a wire coil before wire drawing; the two wire drawing rollers are rotationally arranged on the wire drawing machine case, the wire drawing rollers are respectively controlled by two motors or simultaneously driven by one motor and one set of transmission system, and the wire coils are wound around the wire drawing rollers in a staggered manner after being led out from the wire drawing wire coil; an elevation angle supporting arm is further rotationally arranged on the wire drawing machine case, a near-position guide wheel and a far-position guide wheel are rotationally arranged on the elevation angle supporting arm, the near-position guide wheel is closer to the wire drawing roller than the far-position guide wheel, and a wire coil is drawn by the wire drawing roller, then is led out and wound to the near-position guide wheel and then is rewound to the far-position guide wheel. By arranging the infiltration type stretching lubricating box, the friction force in the stretching process can be efficiently reduced, and the stretching efficiency is improved.
Owner:HANGZHOU BRAND NEW PACKAGING CO LTD

Modularized adjustable stranding mechanism of bunch stranding machine

The utility model relates to the technical field of beam strander equipment, in particular to a modularized adjustable stranding mechanism of a beam strander, which comprises a hollow main shaft. Power equipment for controlling the hollow main shaft to rotate is installed on the hollow main shaft, the hollow main shaft is connected with an annular support through spokes arranged at the end of the hollow main shaft, an annular groove is formed in the middle of the outer side face of the annular support, annular bosses are arranged on the edges of the left side and the right side of the annular support, and positioning holes are annularly and evenly distributed in the annular bosses; through the split type modular design, such as the slidable arc-shaped sliding block, the annular boss with the positioning hole and the detachable wire harness mounting frame, rapid adjustment of stranding parameters is achieved, an operator can complete stepless adjustment of the pitch and the stranding angle only by inserting a stud with a head into the positioning hole, a mold does not need to be replaced or a machine does not need to be stopped to disassemble components, and the production efficiency is improved. And the remodeling time is shortened, and the flexibility and efficiency of multi-specification wire production are remarkably improved.
Owner:ANHUI UNIVERSITY OF ARCHITECTURE

Feeding device of silk winder

ActiveCN222573894Ueasy to replaceStable unwindingFilament handlingDrive wheelBobbin
The utility model discloses a feeding device of a silk winder, which comprises a base and a plurality of raw material bobbins arranged on the base. The device comprises a base, the top surface of the base is connected with a mounting frame, the inner walls of the two ends of the mounting frame are rotationally connected with turntables, the turntables are provided with placing tables, the placing tables comprise the first placing table and the second placing table, and the first placing table is arranged above the second placing table; a plurality of limiting holes are formed in the upper surface of the first placing table and the upper surface of the second placing table, and raw material bobbins are arranged in the limiting holes; a driven wheel is rotationally connected between the rotating disc and the mounting frame, the driven wheel is sleeved with a driving wheel, the driving wheel is connected with a motor, and the motor is connected with the base. The raw material bobbin can be conveniently and rapidly replaced, the stop time of the silk winder is greatly shortened, and the working efficiency is improved.
Owner:南充市美洋丝绸有限公司

Cooling liquid for diamond wire cutting of solar silicon wafer and preparation method of cooling liquid

The invention relates to the technical field of silicon wafer cooling liquid, in particular to cooling liquid for diamond wire cutting of a solar silicon wafer and a preparation method thereof.The preparation method comprises the steps that raw materials are mixed, and the raw materials comprise, by weight, 70-80 parts of a solvent, 5-8 parts of a dispersing agent, 3-5 parts of a wetting agent, 0.2-0.5 part of a heat conduction agent and 0.1-0.2 part of a pH regulator; the cooling liquid can effectively reduce the line breaking rate and the smudginess rate of silicon wafer cutting.
Owner:JIANGSU MEIKE SOLAR TECHNOLOGY INC

Rod sticking glue, transverse cutting process of rectangular silicon wafer and cutting device of rectangular silicon wafer

The invention relates to the technical field of silicon wafer cutting, in particular to stick glue, a transverse cutting process of a rectangular silicon wafer and a cutting device of the rectangular silicon wafer. The stick glue comprises an adhesive and a curing agent in a mass ratio of (1.15-1.25): 1; the adhesive comprises a mixture of epoxy resin, a dispersing agent, a stabilizing agent and a coloring agent; the curing agent comprises a mixture of polymercaptan, an accelerant, a defoaming agent, a coupling agent, a dispersing agent, a stabilizing agent and a flatting agent. By adjusting the formula of the stick glue and optimizing the cutting process, distribution of new and old lines, the line speed, the machine speed and the like in the cutting process are specifically optimized, and cutting of the large-size rectangular silicon wafer can be completed under the conditions of lower line breaking rate and cutting rate. For the same silicon wafer size, the battery printing pattern and direction can be redesigned, and a larger size can be designed; and meanwhile, the space utilization rate of the assembly can be improved through more pattern configuration.
Owner:三一硅能(朔州)有限公司

Inverted-V-shaped ring with knotless connection of main lines

ActiveCN224165513Uavoid weakeningEffective pulling force is fully retainedLinesFree rotationStructural engineering
The utility model discloses a main line knotless connection splayed ring, comprising a hollow cap, the top end of which is provided with a through hole in a penetrating manner; a sub-line connecting ring is rotatably arranged at the bottom end of the structural column; the connecting column is used for connecting the hollow cap and the structural column into an integrated structure; the bottom face of the hollow cap is provided with an annular blocking face, the inner diameter of the annular blocking face is larger than that of the penetrating hole, so that a knot of the main line which penetrates through the penetrating hole and is knotted is limited by the annular blocking face in a pull-back state, and therefore a knot-free self-locking connecting structure of the main line is formed. The bottom end of the structural column is provided with a cavity, and the sub-line connecting ring is rotatably arranged in the cavity, so that the sub-line can freely rotate by 360 degrees relative to the structural column in use. The structure can improve the connection strength, simplify the operation and improve the anti-winding performance, and is suitable for various fishing environments.
Owner:宋沂宸 +1

Wire drawing device

The utility model discloses a wire drawing device. The wire drawing device comprises a wire drawing die holder, wire-drawing die mounting grooves are regularly formed in the upper surface of the wire-drawing die holder; the wire-drawing die mounting grooves are arranged in parallel; each wire-drawing die mounting groove is used for placing a wire-drawing die; the wire-drawing die is used for carrying out stretching operation on a wire rod; the wire-drawing dies are respectively placed in the corresponding wire-drawing die mounting grooves; most of each wire-drawing die is positioned in the corresponding wire-drawing die mounting groove; according to the wire drawing device disclosed by the utility model, splashing of cooling liquid can be reduced, the comfort of a working environment can be kept, and meanwhile, the wire drawing die can be better cooled; the wire rod is lubricated, so that the stretching operation is smoother, the wire breakage rate is reduced and the production efficiency is improved; the spraying amount of the cooling liquid can be reduced, meanwhile, the loss of the cooling liquid is reduced, and the cost is reduced.
Owner:SUZHOU ZOTEC MASCH TECH CO LTD

Display panel and display device

The application discloses a display panel and a display device. The first metal layer is arranged on the substrate and comprises a first signal transmission part; the insulating layer covers the substrate and the first metal layer, and comprises a protruding part covering the first signal transmission part; the second metal layer is arranged on the side of the insulating layer away from the first metal layer and comprises a second signal transmission part, and the second signal transmission part covers at least part of the side wall of the protruding part; the protruding part comprises a first sub-layer and a second sub-layer, and a first opening is arranged at the side wall, the first sub-layer is located on the side of the second sub-layer away from the first signal transmission part, the second signal transmission part extends into the first opening and is in contact with the second sub-layer, and the adhesion between the second sub-layer and the second signal transmission part is greater than the adhesion between the first sub-layer and the second signal transmission part. The application can reduce the probability of disconnection of the second signal transmission part at the climbing position, and improve the yield of the display panel.
Owner:GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

Self-adaptive anti-galloping device for galloping wire of power transmission tower

The invention relates to a self-adaptive anti-galloping device for a galloping wire of a power transmission tower. Comprising a support fixedly connected with a cross arm, an upper hanging ring connected with a wire, a piston with the top end fixedly connected with the upper hanging ring, a spring bolt fixedly connected with the bottom end of the piston, a shell in sliding connection with the piston and a lower hanging ring fixedly connected with the shell. The shell is fixedly connected with the bracket; the lower hanging ring is fixedly connected with the insulator string; a jacking device is arranged between the spring bolt and the shell; an elastic pressing device is arranged between the piston and the shell; the device has the beneficial effects that through the arrangement of the piston, the spring bolt, the pressing device and the jacking device, the galloping energy is released, the inherent frequency of the system is reduced, the galloping amplitude is also reduced, and the tension of a wire hanging point is reduced, so that a power transmission line is protected, the probability of wire breakage is greatly reduced, and the loss caused by a power grid accident is reduced.
Owner:STATE GRID HEBEI ELECTRIC POWER RES INST +1

Cutting fluid and application thereof

The invention provides a cutting fluid and application thereof. The cutting fluid comprises the following components in percentage by mass: 1%-10% of a wetting agent, 10%-20% of a lubricant, 0.5%-3% of a defoaming agent, 0.5%-2% of a settling agent, 1%-5% of an antirust additive, 3%-10% of an auxiliary agent and the balance of water, % is the mass percentage of each component in the cutting fluid; the wetting agent comprises fatty alcohol polyether; the lubricant comprises trans-block polyether, polyether ester or polyethylene glycol; or, the lubricant comprises trans-block polyether and polyether ester; alternatively, the lubricant comprises trans-block polyether and polyethylene glycol. The cutting fluid has excellent lubricating and dispersing performance, so that the cutting fluid has a better cutting effect; specifically, the wire breakage rate, the scratch rate and the torque can be reduced.
Owner:NANJING REGAL POLYMER