73results about How to "High cutting surface quality" patented technology

Provided is a cutting method for a glass sheet, comprising radiating a laser beam to a cutting portion (C) of a glass sheet (G) having a thickness of 500 μm or less to fuse the glass sheet (G), wherein a narrowest gap between fused end surfaces (Ga1 and Gb1) of the glass sheet (G), which face each other in the cutting portion (C), is managed to satisfy a relationship of 0.1≦b/a≦2, where “a” is a thickness of the glass sheet (G) and “b” is the narrowest gap.

An emulsified soap as the working liquid of linear cutting is prepared through proportionally mixing machine oil, oleic acid and resin, heating to 70-95 deg.c, sequentially and proportionally adding potassium hydroxide, phosphate and additive, and heating to 120-130 deg.C. Its advantages are high power for cutting thick (300-500 mm) workpiece, easy demoulding and cleaning, and high cutting quality and efficiency.

The invention discloses an annular super-hard abrasive wire and a method for manufacturing the same. The annular super-hard abrasive wire comprises a rope, super-hard abrasive particles and a coating, wherein the size of the rope ranges from 0.1mm to 6mm, the super-hard abrasive particles are solidified on the surface of the rope, and the coating is used for solidifying the super-hard abrasive particles. The method for manufacturing the annular super-hard abrasive wire includes braiding the thin rope to form a ring with an optional perimeter; and then solidifying the super-hard abrasive particles on the surface of the annular rope by means of coating to form the high-strength annular super-hard abrasive wire with the uniform outer diameter and a long service life. The annular super-hard abrasive wire is low in cost, high in fatigue strength, long in service life, good in cutting quality and high in cutting efficiency, and a cutting machine with the annular wire can be used for cutting conductors, semiconductors and non-conductor materials.

The invention discloses a method for welding high-strength steel through a laser welding machine. The welding method includes the steps of clamping of strip steel to be welded, conventional shearing, slight moving of a lap joint platform to determine shear amount of secondary shearing, secondary shearing, butt-joint of the strip steel on the lap joint platform, high-power vacuum annealing, smoothening, compressed air cooling, preheating, pre-smoothening, laser connection welding, secondary high-power annealing, smoothening, welding finishing and the like. The quality of the shearing surface of the strip steel is improved through the secondary shearing; yield strength can be reduced through the high-power vacuum annealing, the plate form of the strip steel in the welding region can be effectively improved, and material grains can be improved; material of the strip steel in the welding region can be improved through the air cooling, and thus fracture of welding joints in a thermoinduction region can be effectively avoided.

The invention discloses a system for removing slab burrs and belongs to the field of machining of a slab after flame cutting in a steel metallurgical industry. The system is composed of a numerical control plasma arc cutting device, a slab locating device and a siemens programmable logic controller (PLC) control system. The numerical control plasma arc cutting device is formed by two sets of identical components and comprises a plasma power supply, a control cabinet, a first servo motor, a plasma gun body and a traveling mechanism of the plasma gun body. The slab locating device is composed of a traveling mechanism of a front frame and a rear frame, a traveling mechanism of the slab and a lifting control system of the slab. The siemens PLC control system assembly comprises a siemens S7-300 system module, a frequency converter, a hydraulic driver, a servo driver of the front frame and rear frame, a second photoelectric switch, a first photoelectric switch and a communication port. The system integrates high speed of slab burr removing and high burr removing rate and has important application value on controlling rolling quality of the slab.

The present invention relates to a liquid crystal glass substrate double-cutter wheel cutting device which comprises a support frame, a translation mechanism and a cutting tool assembly, a liquid crystal glass substrate is fixed on the support frame, the cutting tool assembly moves on the support frame through the translation mechanism; the cutting tool assembly comprises two cutter wheels, the two cutter wheels are arranged along the same cutting path, one cutter wheel is arranged in front of the other cutter wheel, the cutting feed rate of the front cutter wheel is less than that of the rear cutter wheel. The invention also relates to a liquid crystal glass substrate double-cutter wheel cutting method. The liquid crystal glass substrate double-cutter wheel cutting device uses ordinary cutter wheels to obtain the cutting depth processed by a high permeability cutter wheel, has the advantages of simple structure, low cost, and efficient completion of simultaneous cutting processing of the front and the rear cutter wheels by one time of cutter feeding, and belongs to the technical field of glass cutting.

The invention provides a control method and control system for cutting a crystal bar by a diamond wire. The diamond wire is arranged between two cutting main rollers with the same size and the same height, and the crystal bar is positioned on a central axis between the two cutting main rollers to cut in the direction perpendicular to a connecting line between the two cutting main rollers. The control method comprises the steps that whether an actual wire arch when the diamond wire cuts the crystal bar meets a backoff condition is judged, if so, the crystal bar or the diamond wire is retracteda first distance and then cutting continues, if not, no changes are made, that is, as long as the retreating condition is satisfied, the crystal bar or the diamond wire retreats the first distance, aslong as the retreating condition is satisfied, the crystal bar or the diamond wire retreats the first distance, so that the repetition can ensure that the actual contact surface of the diamond wire and the crystal bar is always at a distance around the arc top of the wire arch, the situation that the diamond wire and the crystal bar are cut by the a small wire arch is maintained more, the good cutting lubrication and cooling effect is achieved, and therefore, the better cutting surface quality is obtained.

The invention provides a laser-flame combination cutting method, relates to a cutting method for integrating a laser heat source and a flame heat source, and belongs to the technical field of metal thermal cutting. The laser-flame combination cutting method solves the technical problems that in flame cutting, cutting efficiency of thick steel products is low, deformation is high, the upper edge of a kerf is prone to melting and collapsing, and adhering slag is easily formed on the lower edge of the kerf. The method comprises the following steps that a steel plate is fixed on a workbench, the steel plate is cut at a high speed in a laser and flame coaxial or non-coaxial combination mode, and namely laser-flame combination cutting is completed. The kerf obtained with the method is good in perpendicularity, the quality of the cutting surface is high, the cutting thickness is large, and an expensive hafnium electrode does not need to be replaced periodically. The laser-flame combination cutting method has the advantages that the cutting speed is high, the cutting efficiency is high, a heat affected zone is small, deformation is small, no hole needs to be formed in the steel plate in advance because lasers have the punching function, and a cutting process is directly started without the need for preheating. The laser-flame combination cutting method belongs to the field of steel-product cutting.

The present invention relates to a method for manufacturing a secondary battery and a secondary battery using the same, which can improve the quality of a cut surface of an electrode plate and improve the reliability of the secondary battery. For example, disclosed is a method for manufacturing a secondary battery, the method comprising: an active material layer forming step of forming an active material layer by coating an active material on both surfaces of a collector plate; an active material layer removing step of removing a part of the active material layer by irradiating a laser beam to the both surfaces of the collector plate; and a cutting step of cutting the collector plate by irradiating a laser beam onto the collector plate from which the active material layer has been removed in the active material layer removing step.

A laser processing machine includes a laser oscillator. The laser oscillator excites a laser beam having a wavelength in a 1 μm band or a shorter wavelength band. One process fiber transmits the laser beam emitted from the laser oscillator. A focusing optical element focuses, when a workpiece is irradiated with the laser beam emitted from the process fiber, the laser beam on a plurality of spots in a unit area within a unit time, the unit area having a radius of 0.5 mm of an optical axis of the laser beam, and the unit time being a time from when the workpiece starts to melt to when the melting of the workpiece ends.

The present invention provides a method of cutting a laminated body, capable of obtaining good cutting surface quality without cost and labour hour even that a part (film) of the laminated body (10) has a low elongation rate, wherein the laminated body (10) is cut by a cutting knife (46). The laminated body (10) has a separation film (12) and a multilayer film (16) stacked on the separation film (12) through adhesive agent (14). The multilayer film (16) has a first protection film (18a) stacked on the adhesive agent (14), a polarization mirror (20) stacked on the first protection film (18a), and a second protection film (18b) stacked on the polarization mirror (20). Furthermore, a speed (cutting speed v) of the cutting knife (46) to the laminated body (10) is adjusted to more than 8mm/sec, preferably more than 10mm/sec to cut the laminated body (10).

The invention provides a solar silicon wafer cutting fluid based on a shear thickening mechanism. The cutting fluid is prepared from micro/nano-silicon dioxide particles, dispersion media and SiC powder, wherein a certain part of micro/nano-silicon dioxide particles is dissolved in the dispersion media to form the cutting fluid with a shear thickening effect. The preparation method comprises the following main preparation steps: dissolving micro/nano particles into pretreatment dispersion media to obtain premixed liquid; further dispersing the premixed liquid in the dispersion media to obtain a micro/nano-silicon dioxide dispersion system; adding the SiC powder into the dispersion system to obtain the novel solar silicon wafer cutting fluid. Compared with traditional solar silicon wafer cutting fluid, the solar silicon wafer cutting fluid has the advantages of better dispersibility, stability and shear thickening performance, lower cutting cost and better cutting surface quality. The solar silicon wafer cutting fluid based on the shear thickening mechanism has the advantages of simple preparation technology, convenience in operation and easiness in realizing industrial production.

The invention relates to cutting equipment special for polycrystalline silicon processing and aims to provide a diamond wire crystal ingot squarer. The diamond wire crystal ingot squarer comprises a large bottom frame, a workbench, a workbench horizontal moving motor, a speed reducer, a main screw, a manipulator part, a cutting chamber part, a lifting mechanism, a take-up and payoff part, a tension part and a bottom guide wheel part. According to the diamond wire crystal ingot squarer, a diamond wire saw is adopted for cutting, a cutting mark is small, a cutting face is high in quality, material loss is reduced greatly, and the work environment is improved. According to the diamond wire crystal ingot squarer, a novel rotary mechanism is adopted for decreasing the height of the workbench, and thus the axis distance of a cutting guide wheel is reduced. The wire arch is small, cutter feeding is fast, the cutting efficiency is high, and the cutting dimensional deviation caused by a hard point is avoided. According to the diamond wire crystal ingot squarer, a horizontal moving function is added to a bottom guide wheel, a cutting line is changed into an oblique line from a vertical line during second time of cutter feeding, only a cutting-in opening is cut in the upper portion of a crystal ingot, and thus the uncontrollable size and edge breakage are avoided.

The invention relates to a method for cutting a groove of a U-rib steel plate by plasma cutting torches at double variable angles for one time. The method comprises steps as follows: two sets of plasma batteries and two sets of the plasma cutting torches which can deflect angles are mounted on one plasma numerical control cutting machine; the two plasma cutting torches are configured with cutting torch initial height positioners, cutting torch arc voltage adjusting systems, numerical control systems and PLC (programmable logic controller) systems; a to-be-cut steel plate is placed on a cutting table, the two plasma cutting torches are aligned to the edge of the to-be-cut steel plate, the transverse distance between the two plasma cutting torches and the angles of the two plasma cutting torches are adjusted, and initial positioning values, cutting current and cutting speeds of the two plasma cutting torches are set in the numerical control systems; and a starting button of the cutting machine is pressed, and under the control of the numerical control systems, the two plasma cutting torches simultaneously start arc and cut the U-rib steel plate. According to the method, only one processing process is required, and the U-rib steel plate can be cut for one time, therefore, the operation is simple, automatic cutting is realized, and the straightness of the cut U-rib steel plate, the surface quality of the groove and the angle accuracy all meet the design requirements.

The invention discloses a test method for testing residual stress of a steel rail by adopting a rail web notching method. The test method comprises the following steps: 1) preparing a sample; 2) cutting a rail web; and 3) performing measuring. A linear cutting machine tool is used for cutting, the notch surface quality is good, and macroscopic cutting force in machining is avoided; the length of asample is 600 mm, a molybdenum wire is a molybdenum wire special for 0.18 mm linear cutting, the length of a notch is 400 mm, computer programming control is adopted in the cutting process, and the size precision of the notch is high. Residual stress displacement value measurement is performed by using an average value method so as to reduce measurement errors; a vernier caliper is used for measurement, and the displacement value (+ or-) is required to be smaller than or equal to 3.75 mm.

The invention provides a cutting torch for cutting an ultrahigh-thickness 2000-3500 mm low-carbon and low-alloy steel ingot and belongs to the technical field of the ultrahigh-thickness low-carbon steel ingot oxygen cutting device. The invention aims to solve the technical problem in the background art that the 2000-3500 mm ultrahigh-thickness low-carbon and low-alloy steel ingot cannot be cut at high efficiency and good quality. The cutting torch is mainly characterized in that preheating oxygen and propane gas are not mixed inside the cutting tip of the cutting torch at first, and mixed and burnt in atmosphere after being jet out of the cutting torch instead, a preheating oxygen duct (5) and a gas duct (6) both are inclined toward the axis of the cutting torch, the diameter of the throat part of a large-flow cutting oxygen cutting tip (7) is 17-22 mm, each gas duct (6) is designed into a structure with the lower part thereof slightly spread, and the diameter of the inlet thereof is 4.5 mm, the spreading taper angle is 1.146% and the length of the spreading section is 8 mm. The cutting torch provided by the invention is suitable for good-quality and high-efficiency cutting of the ultrahigh-thickness 2000-3500 mm low-carbon and low-alloy steel ingot.

An electrode wire used for spark cutting of low-speed wire cutting comprises an electrode wire body. The electrode wire body is composed of a core material and a surface metal layer, wherein the core material is made of an alloying brass material, and the surface metal layer covers the core material. A transition layer is arranged between the core material and the surface metal layer. The alloying brass material is composed of, by weight, 58.0-65.0% of copper and the balance zinc, a small quantity of adding elements and inevitable impurities. The surface metal layer is composed of copper, zinc, adding elements and inevitable impurities, wherein the zinc content is larger than 52 wt% and smaller than 68 wt%, and the surface metal layer is distributed in a fracture shape longitudinally. Compared with the prior art, the electrode wire has the advantages that the manufactured electrode wire is stable in discharge performance, the cutting speed is increased, a wire feeding part and a guiding device of low-speed wire cutting equipment are prevented from being damaged, a machining technique of the electrode wire is simple, the application range is wide, the cost is low, and broad market prospects are achieved.

The invention belongs to the technical field of manufacturing of bone cutting tools, and particularly relates to a bionic bone cutting tool based on a dung beetle surface microstructure and a preparation method of the bionic bone cutting tool. A texture array of an imitated dung beetle surface microstructure is processed in a cutting chip contact area, and comprises semi-ellipsoid protrusion microstructures distributed on the head of a dung beetle and semi-ellipsoid pit microstructures distributed on the back of the dung beetle, the cutting temperature in the process of cutting a bone materialby the tool can be reduced, the cutting process is more stable, cracks are inhibited, and the surface quality is improved. The bionic tool can be widely applied to a backbone cutting surgery, the cutting temperature can be reduced, moreover, cracks can be inhibited, so that the cutting surface quality of the bone material is improved, and secondary damage to a patient is avoided.

The invention discloses an automatic control system for a cross-cut shear blade gap. A process automation computer calculates an optimal shear blade gap value by comprehensively considering the thickness and the tensile strength of a steel plate according to original data of the steel plate to be sheared sent by a production control computer, the optimal shear blade gap value is automatically sentto a base automation computer, and the base automation computer further considers a shear blade actual wear compensation dosage and then automatically sends a final optimal shear blade gap value to ashearing machine automation control programmable logic controller (PLC) for carrying out shearing. The automatic control system for the cross-cut shear blade gap has the advantages that the shear blade gap is scientific, reasonable and targeted, so that the quality of cut surfaces of various steel plates especially high-strength steel is effectively improved. In addition, a gasket for clearance adjustment is further cushioned on a top knife rest, so that the deviation of the gap in the shear blade length direction is reduced, a method is simple and easy to implement, and the remarkable effects on improving the overall quality of the cut surface and prolonging the service life of the shear blade are achieved.

The invention discloses an inverted swing worktable of a multi-line cutting machine, comprising a lifting mechanism, a swing mechanism and a worktable body. The lifting mechanism is provided with a fixed base, a lifting motor, a lifting base, a lifting substrate and a screw nut transmission component; the fixed base is mounted at the top of a main frame of the multi-line cutting machine; the lifting motor is mounted on the fixed base; an output shaft of the lifting motor is fixedly connected to a lead screw in the screw nut transmission component; a nut in the screw nut transmission componentis fixedly assembled with the lifting base; the lifting substrate is fixed at the bottom of the lifting base; vertical plates on both sides of the lifting substrate are provided with hinge holes matched with the swing mechanism; the swing mechanism is mounted on the lifting substrate; swing arms are provided on both sides of the worktable body; and the worktable body is assembled with the swing mechanism by means of the swing arms. By optimally designing the arrangement form and motion mode of the worktable, the purposes of improving the quality of workpiece cut surfaces, satisfying the processing requirements of high-precision workpieces and improving the working efficiency are achieved.

The invention relates to a composite forming method of a component with a large-angle thin-wall twisted narrow-depth cavity feature. The composite forming method comprises the steps of model reconstruction, mold manufacturing as well as processing and forming; the model reconstruction comprises the steps that a three-dimensional model of the component is reconstructed in software, two side wing thin walls of the component three-dimensional model are unfolded outwards towards the two sides to form the three-dimensional model of a pre-machined part; mold manufacturing comprises the steps that acorrecting mold comprising a plurality of mold components is manufactured according to the outline design of the component; and processing and forming comprise the steps that production and processingof the pre-machined parts of a plate part is performed, then, the two side wing thin walls which are unfolded outwards of the pre-machined part are heated and folded inwards by using the correcting mold, and component processing is completed. Compared with the prior art, the component is reconstructed into the pre-processing part with no deep-cavity features, the side wing sheets on the two sidescan be recovered to form the large-angle twisted narrow-depth cavity during heating and folding, the defect that the narrow-depth cavity is damaged or lost due to the fact that the cutting processingis directly adopted can be overcome, and the product precision and the finished product rate are guaranteed to the maximum degree.