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61results about How to "Solve disconnection" patented technology

Multi-wire sawing machine for silicon wafers

The invention relates to a multi-wire sawing machine for silicon wafers. The multi-wire sawing machine comprises a rack, a guide wheel assembly fixed to the rack, a crystal supporting assembly, a wire net and a vibration damper, wherein the guide wheel assembly comprises a plurality of sets of guide wheels which are arranged in pairs; the crystal supporting assembly is located on the outer side of the part between at least one pair of guiding wheels; the net wire surrounds the multiple sets of guiding wheels which are arranged in pairs; the vibration damper is located between the guiding wheels and comprises a roller structure and a supporting structure used for supporting the roller structure, the roller structure is connected with the wire net in an abutted manner, and the supporting structure is fixedly connected with the rack; and the crystal supporting assembly and the vibration damper are installed on the two sides of the wire net. According to the multi-wire sawing machine for the silicon wafers, on one hand, the fulcrum distance of the wire net is shortened, the amplitude of the wire net is reduced, and therefore the probability that the wire net jumps out of a guide wheel groove is reduced, and the wire breaking problem caused by wire jumping is solved; and on the other hand, the wire arch of the wire net is correspondingly reduced, the sawing efficiency of the wire net can be improved, and therefore the production efficiency is improved, the probability of edge breaking caused when the silicon wafers go out of a cutter edge is reduced, and the yield of products is improved.
Owner:GCL POLY ENERGY HLDG

Intelligent electronic spot welder and spot welding method thereof

The invention relates to an intelligent electronic spot welder and a spot welding method thereof. The spot welder comprises a host machine provided with a singlechip and a welding database, and a machine head; the machine head comprises a driving device, a front shaft and a welding head; and a detector and a braking device are respectively connected with the front shaft. The detector transmits the acquired data to the singlechip so as to make the welding head automatically perform welding action through the host machine. The intelligent electronic spot welding method comprises the following steps of: (1) establishing a welding parameter database; (2) measuring the diameter of an enameled wire to be processed; (3) outputting a paint-removing pulse for paint removal; (4) outputting a welding pulse for welding; (5) and measuring or performing repair welding. The Intelligent electronic spot welder has real-time detection and repair welding function, namely synchronously welds and detects welding spot quality, and detects a welding spot once the welding spot is welded to form a closed-loop automatic detection system, solves the problems of no detection of the welding spot quality afterwelding, and insufficient welding and wire break during spot welding of the conventional spot welder, and improves the reliability of processing electronic components in the industries of communication, aviation and aerospace and advanced medical equipment.
Owner:珠海精易焊接设备有限公司

Method for manufacturing seamlessly spliced leather wear

The invention discloses a method for manufacturing seamlessly spliced leather wear. The method comprises the following steps of 1) designing a product, namely designing a fashion style according to characteristics of a seamless splicing process; 2) producing a sample, namely producing the sample in a given size according to a fashion style design; 3) marking off, namely matching required leather according to luster and texture of leather; 4) tailoring, namely tailoring the leather after marking off according to the provided sample; 5) performing hot melt adhesion, namely setting parameters such as temperature, speed and pressure of hot melting equipment according to a requirement, and performing hot melt adhesion operation on the leather according to an operational process; 6) sewing accessories and attachments, namely sewing the accessories and the attachments such as zippers, decoration and buttons, or installing the accessories and the attachments on the spliced leather wear by using other equipment; 7) inspecting, namely performing quality inspection on the spliced finished product. According to the method, parts of the wear are spliced through a hot melt adhesion process, the firmness of the leather wear is improved, potential safety hazards brought by needle breakage and glue water are avoided, and the leather wear is more tidy and smooth in overall appearance.
Owner:ZHEJIANG GLM GARMENT

Preparation method for PERC double printing polycrystalline solar cell

InactiveCN109599456ALight attenuation (LID reductionReduced light decay (LID)Final product manufacturePhotovoltaic energy generationEngineeringOxygen
The invention discloses a preparation method for a PERC double printing polycrystalline solar cell. The PERC double printing polycrystalline solar cell is obtained by taking a polycrystalline siliconwafer as a base material and sequentially performing the steps, namely flocking, diffusion, etching, annealing, back passivation, antireflection film plating, back laser grooving, printing, sinteringand light attenuation reduction; in the annealing step, oxygen-free annealing is adopted, in the back passivation step, Al2O3 and SiNX are plated on the back of the silicon wafer, in the antireflection film plating step, SiNX is plated on the front of the silicon wafer, during positive electrode printing, a silk screen printing machine is adopted for printing twice, namely DP1 and DP2, a secondarygrid line is printed during the DP1, a main grid line and the secondary grid line are overprinted during the DP2, and a silk screen printing plate used in the printing DP1 and the printing DP2 is a knotless silk screen printing plate. The preparation method provided by the invention and for the PERC double printing polycrystalline solar cell can reduce LID of the solar cell to be about 1%, powerof a module finished product can be increased, conversion efficiency is high, and grade and electrical properties are obviously improved.
Owner:TONGWEI SOLAR ENERGY CHENGDU CO LID

Ultrathin wide microporous aluminum net for thunder and lightning protection and preparation method thereof

The invention discloses an ultrathin wide microporous aluminum net for thunder and lightning protection and a preparation method thereof and belongs to the technical field of microporous metal nets. The microporous aluminum net comprises, by weight percent, 0.1% to 0.3% of Sc, 0.05% to 0.15% of Zr and the balance Al. The thickness of the microporous aluminum net ranges from 0.05 mm to 0.13 mm, thewidth of the microporous aluminum net ranges from 600 mm to 1000 mm, the length of the microporous aluminum net is larger than 100 m, the long pitch of the microporous aluminum net ranges from 1.8 mmto 2.2 mm, and the short pitch of the microporous aluminum net ranges from 0.7 mm to 1.4 mm. Specifically, the ultrathin wide microporous aluminum net is obtained by carrying out stamping, stretchingand precision bump-cutter machine planishing on an aluminum foil material. The ultrathin wide microporous aluminum net for thunder and lightning protection is good in conductivity, high in strength,high in plasticity and low in mass, and the problem that when a wide ultrathin metal aluminum stretching net is produced in the prior art, net breaking, edge cracking and other continuous conduction failing problems are caused is solved.
Owner:有研金属复材技术有限公司

Adjustable cathode fixing device for high-voltage wet electrostatic precipitator

The invention discloses an adjustable cathode fixing device for a high-voltage wet electrostatic precipitator. A cathode frame is provided with groove steel for a cathode fixing pile to be connected with the frame. A cathode girder is located above an anode pipe of the cathode frame and is fixed through two clamping flanges and clamping bolts. The cathode fixing pile is arranged between the cathode girder and the cathode frame and is installed in a connection channel between the cathode girder of an upper air chamber and the cathode frame of a lower air chamber. A cathode wire is laid in the anode pipe in the channel. An adjusting bolt is fixed to the bottom of the cathode fixing pile, a screw rod of the adjusting bolt penetrates through the groove steel and the cathode frame, and an adjusting nut matched with the adjusting bolt is arranged below the cathode frame. The adjustable cathode fixing device is suitable for treatment of exhaust gas of large power stations, exhaust gas of sintering machines, pellets, cement and chemical engineering of the iron and steel industry and a large amount of exhaust gas of the nonferrous metallurgy industry. Ultra-low emission improvement is carried out on existing power plants and steel mills and is of great significance in high efficiency and energy conservation advocated by the country and long-term safe, stable and standard operation of a system.
Owner:SHANDONG GUOSHUN CONSTR GRP

Flexible sliding power supply assembly, massage back cushion and control method of massage back cushion

The invention discloses a flexible sliding power supply assembly, a massage back cushion and a control method of the massage back cushion. Two or more fixing grooves are formed in a flexible conductive rail, and conductive strips are installed in the fixing grooves in an embedded mode; a sliding conductive assembly is installed on the flexible conductive rail, the sliding conductive assembly is slidably and electrically connected with the conductive strip, and the conductive strip is correspondingly and electrically connected to the power supply and the controller. The flexible conductive railcan be unidirectionally bent in a large arc manner to adapt to massage chairs in different shapes, is good in adaptability, and can be used for a common back cushion and a curved back cushion; the flexible conductive rail and the tunnel type sliding power transmission assembly can be made into standard parts, and can be universally used for various back cushions, so that the development cost is reduced, and the assembly is convenient; the flexible conductive rail is connected by adopting a tunnel type probe control sleeve structure, and is fixed reliably during sliding guide; and one controller can be connected with a plurality of massage machine cores with tunnel sliding electricity transmission assemblies, the number of wires is reduced, and the problems that wires of a massage cushionare broken and massage heads are twisted are thoroughly solved.
Owner:SHENZHEN MONDIAL TECH CO LTD

Million high-definition wireless network video variable-magnification pan-tilt monitoring camera

The invention discloses a million high-definition wireless network video variable-magnification pan-tilt monitoring camera. The camera comprises a ball machine body, the ball machine body comprises asupport, a base, a horizontal motor support and a holder support. A power supply is arranged in the ball machine body; the bottom of the support is fixedly connected with the base; wherein the horizontal motor support is installed below the base, a horizontal motor installation position is arranged in the horizontal motor support, a horizontal motor is installed at the position, located at the horizontal motor installation position, in the horizontal motor support, and the holder support is installed below the horizontal motor support. According to the million-high-definition wireless networkvideo-recording zoom holder monitoring camera, a ball machine can circularly rotate by 360 degrees, the problem that the tail line of a 355-degree ball machine on the market is broken is solved, the service life of the ball machine is longer, the ball machine is not prone to damage, mounting is faster, the structure is simple, assembling is quick, after-sales maintenance is simple, the productionefficiency is improved, and maintenance is more convenient.
Owner:深圳市华安邦数字技术有限公司

Wet electrostatic precipitator cathode wire weldless connection structure

The invention discloses a wet electrostatic precipitator cathode wire weldless connection structure which comprises a frame, a cathode wire, and two elastic pieces which are arranged in pair, wherein one ends of the elastic pieces are connected with two ends of the cathode wire in a disassembling manner; the other ends of the elastic pieces are connected with corresponding cross bars of the frame in the disassembling manner. The cathode wire and the elastic pieces are in up-down tight connection in a disassembling manner; the original elastic pieces are used for achieving an integrated connection structure, elastic force of the elastic pieces can be used for tightly fastening the cathode wire and the frame, the connection manner is simple, the disassembling and the assembling are convenient and fast, and the connection is fastened and reliable while the function of heat expansion and cold contraction can be reduced, so that the problem that the wire breakage is caused in the running process as materials of the cathode wire are changed and the percentage of contraction of the cathode wire is increased after the cathode wire are welded can be extremely solved; the distance between the cathode wire and the frame can be adjusted, so that if only the connection part of the cathode wire is damaged, the cathode wire can also be used continuously, and further the wet electrostatic precipitator cathode wire weldless connection structure has the very high application value and prospect.
Owner:XIAMEN UNIV OF TECH

Screenless secondary printing method for positive electrode of crystalline silicon solar cell

The present invention discloses a screenless secondary printing method for a positive electrode of a crystalline silicon solar cell. The method comprises that: a silk-screen printing machine is used to perform two times of printing of DP1 and DP2, wherein the sub-grid line is printed in the DP1, the main grid line and the sub-gate are printed in the DP2, and the silk-screen printing plate used forDP1 and DP2 printing is a screenless silk-screen printing late; the sub-grid line and the positioning points are printed onto the cell sheet by using the slurry through the DP1 screenless silk-screenprinting plate; four solid positioning points on the cell sheet is captured by using the HD camera, and the cell sheet is automatically adjusted to the appropriate position to achieve precise contrast with the alignment point on the DP2 screenless silk-screen printing plate; and the main grid line and the sub-grid line are printed onto the cell sheet by using the slurry through the DP2 screenlesssilk-screen printing plate. According to the method disclosed by the present invention, the limitations of the traditional printing process is broken through, the aspect ratio of the sub-grid printing is improved, the printing quality of the grid line is improved, and the electrical performance and the excellent product rate of the cell sheet are improved.
Owner:TONGWEI SOLAR ENERGY (CHENGDU) CO LID

Active pay-off system with variable thread speed and constant tension

The invention provides an active pay-off system with variable thread speed and constant tension. The active pay-off system with variable thread speed and constant tension comprises a platform, a thread tray, a motor drive device, a thread pressing rod, a double-guide-wheel thread tightener, a shaft angle sensor, a guide wheel, a tension controller, a thread guiding rod and a pay-off tension control system. The motor drives the device to drive the thread tray to rotate, a silk thread is wound on the thread tray, the silk thread drawn from the thread tray passes through the thread pressing rod so as to form a wrap angle and enters the double-guide-wheel thread tightener, the silk thread is drawn from the double-guide-wheel thread tightener and then passes through the guide wheel so as to enter the tension controller, and the silk thread passing through the tension controller is drawn through the thread guiding rod. According to the active pay-off system with variable thread speed and constant tension provided by the invention, through the joint action of the motor drive device, the double-guide-wheel thread tightener and the shaft angle sensor, the closed-loop control of the pay-offspeed can be realized. Compared with a passive pay-off system characterized by fixing the thread tray on a non-driving device, active pay-off can be realized, and the control system controls the drivedevice to actively adjust the pay-off speed according to an angle value detected by the shaft angle sensor, so that the occurrence of thread breaking or silk thread loosening can be prevented.
Owner:CHINA ELECTRONICS TECH GRP NO 39 RES INST

Preparation method of superfine core wire multi-core MgB2 superconducting wire strip

The invention discloses a preparation method of a superfine core wire multi-core MgB2 superconducting wire strip, which comprises the steps of 1, mixing tubing precursor powder, grinding to obtain mixed powder, and cleaning the surface of a wrapping material; 2, filling the mixed powder into a primary sheath, and drawing to obtain a single-core wire; 3, bundling and assembling a plurality of single-core wires, a central plunger and an edge plunger into a secondary sheath for vacuum seal welding; 4, sequentially carrying out hot extrusion, groove rolling and drawing, and matching an intermediate heat treatment process; and 5, performing phase forming heat treatment to obtain the superfine core wire multi-core MgB2 superconducting wire strip. According to the invention, through structural design and hot extrusion of the multiple single-core wires after bundling and assembling, the bonding strength between the sub-components is improved, the cooperative deformation capacity between the sub-components is guaranteed, the number of the superconducting core wires is increased, the diameter of the superconducting core wires is reduced, the alternating current loss performance of the multi-core MgB2 superconducting wire strip is reduced, and the requirement of alternating current transmission application is met.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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