88 results about "Yield rate" patented technology

The invention relates to the technical field of three-step fine polishing methods for 19nm wafer regeneration, discloses a fine polishing method named'three-step fine polishing method for 19nm wafer regeneration ', and aims to solve the technical contradiction between macroscopic planarization and microscopic surface integrity of regenerated wafers in advanced process nodes. The method is characterized by comprising a first fine polishing step, a second fine polishing step and a third fine polishing step, and in each step, gradient decreasing polishing pad hardness, abrasive particle size and concentration, polishing pressure and pH value are adopted; and an on-line process monitoring and self-adaptive feedback control subsystem is used for assistance. By adopting the technical scheme, defects can be efficiently removed, damage can be repaired step by step, the wafer surface with ultralow defect density and excellent chemical stability is obtained, the requirements of the manufacturing process of 19nm and more advanced semiconductors are met, and the yield is increased.

The utility model provides a twist drill coping device with high efficiency and accurate positioning, and belongs to the field of alloy cutter coping machining. The problems that certain dangerousness exists in existing auger bit coping, the coping yield is uncontrollable, and the coping efficiency is difficult to improve are solved. The drilling machine comprises a platform, a grinding wheel mechanism, a walking mechanism and a drill bit clamping mechanism, the grinding wheel mechanism, the walking mechanism and the drill bit clamping mechanism are all arranged on the platform, the grinding wheel mechanism is arranged at one end of the walking mechanism, the drill bit clamping mechanism is arranged on the walking mechanism, and the walking mechanism comprises a lead screw, a linear guide rail, a sliding table and a circular truncated cone face. The grinding wheel mechanism comprises a grinding wheel mounting frame, a servo motor and a grinding wheel, and the drill bit clamping mechanism comprises a drill bit clamping tool and a clamping tool mounting seat. The auger bit grinding device is mainly used for grinding an auger bit.

The utility model relates to the technical field of pipe fitting production dies, in particular to a rubber-coated pipe fitting die capable of improving appearance quality, which comprises a rear die core, a first cavity positioned in the rear die core, a front die core and a second cavity positioned in the front die core. The second cavity is communicated with the first cavity and forms a product cavity for forming a product, a mold sticking surface is arranged on the wall surface of the first cavity, a concave part is arranged on the mold sticking surface, and the mold sticking surface is used for adsorbing a formed workpiece on the wall surface of the first cavity after mold opening. By sacrificing the surface precision of a small part of the surface without the smoothness requirement, the workpiece is stably adsorbed on the first cavity, so that the success rate of the clamping operation of the manipulator is increased, the workpiece is prevented from naturally falling under the action of gravity and being collided to generate deformation, and the working efficiency is improved. And the yield and the surface smoothness of the formed workpiece are effectively improved.

The invention discloses a preparation method for reducing surface cracks of weather-resistant H-shaped steel. The preparation method comprises the following steps: a steelmaking production process; a steel rolling production process; the heating temperature interval ranges from 1210 DEG C to 1260 DEG C, and the heating time h is larger than or equal to 2.5 h and smaller than or equal to 3.0 h; high-pressure water descaling is conducted before CCS rolling, and the pressure of high-pressure water is larger than or equal to 100 Kpa; the alloy comprises the following chemical components in percentage by mass: 0.08-0.14% of C; 0.25% to 0.50% of Si; mn: 1.30% to 1.50%; p: less than or equal to 0.010%; s: less than or equal to 0.008%; 0.30% to 0.35% of Cu; 0.35% to 0.45% of Ni; 0.40% to 0.50% of Cr; 0.10% to 0.12% of V; and the balance Fe and impurities. According to the preparation method for reducing the surface cracks of the weather-resistant H-shaped steel, the surface cracks of the weather-resistant H-shaped steel are reduced, and the yield is increased.

The invention discloses a method for capping the tail of an ultra-low carbon steel continuous casting, which relates to the field of metallurgical manufacturing technology. The method comprises the following steps: after the ultra-low carbon molten steel stops pouring, the pulling speed is controlled to 0.06m / min to 0.17m / min, a cooling piece is placed, and after capping, the pulling speed is controlled to 0.35m / min to 0.45m / min, the pulling speed is accelerated to 1.0m / min to 1.4m / min, and when the tail of the tail reaches the sixth sector, the pulling speed is decelerated to 0.81m / min to 1.18m / min; when the tail of the tail reaches the eighth sector, the pulling speed is accelerated to 1.16m / min to 1.2m / min. By controlling the casting speed, the method can improve the surface defects of the tail, reduce the amount of tail waste, and improve the yield rate. The tail capping operation process is simple, and the tail after capping is of good quality.

The present invention discloses a method for improving the yield rate of titanium alloy seamless tubes. By optimizing the composition of the titanium alloy, the plasticity of the titanium alloy is improved. A titanium alloy bar with radial texture is obtained by switching between reversing upsetting and diagonal upsetting. The bar is machined to obtain a seamless tube blank. After glass lubrication, a new die extruder is used for extrusion. The arc of the extrusion die entrance follows the binary function formula Y=0.04X 2 +3X+A (A is a constant), an extrusion die outlet cone angle of 25° to 35°, an extrusion ratio of 10 to 18, and an extrusion speed of 90 to 120 mm / s. This method improves the uniformity of metal flow on the titanium alloy surface, avoids problems such as surface cracking during extrusion, and achieves low extrusion force, high flatness, high surface quality, minimal excess material, and a high yield rate. This comprehensive preparation method not only improves the surface quality and flatness of titanium alloy seamless pipes, but also significantly increases the yield rate of seamless pipes.

The application discloses a forging method of a wide and thick plate rolling mill supporting roller, belongs to the technical field of wide and thick plate rolling mill supporting roller manufacturing, and is used for solving at least one problem that in the prior art, the forging deformation and the surface quality of an oversized ingot are difficult to be considered, the excess metal at a bulging position is accumulated to the center to form deep layer folding, and the material yield rate and reliability of an oversized supporting roller are poor. The forging method comprises the following steps: providing a blank, pressing the blank, pre-drawing the blank after the blank is pressed, obtaining a square blank, upsetting the square blank in the height direction along the axial direction, obtaining an upset blank, compacting and drawing the upset blank, obtaining a compacted and drawn blank, drawing the compacted and drawn blank to the diameter of a forged roller body to obtain a basic blank, finally drawing the two ends of the basic blank to form a roller neck, and obtaining a final forged product. The application can be used for the forging of the wide and thick plate rolling mill supporting roller.

The invention relates to an automatic pressure quenching die for disc spring and wave spring products, relates to the technical field of machining dies, and solves the problems that when an existing pressure quenching die is used for machining disc springs and wave springs, product positioning is poor, formed products have the defects of deviation and large ovality, and the rate of finished products is low. A forming die cavity is formed in the lower die, circulating cooling water tanks are formed in the opposite side faces of the upper die and the lower die, a positioning assembly is arranged in the forming die cavity and comprises a positioning disc and an expansion and contraction piece, the positioning disc is defined by at least two positioning blocks, and the at least two positioning blocks are arranged in the forming die cavity in a radial sliding mode; the expansion and contraction piece is used for driving the at least two positioning blocks to realize expansion and contraction movement; the device has the advantages that the purpose of automatically aligning the concentricity of the disc spring or the wave spring and the forming die cavity is achieved, the consistency of the sizes of products formed through pressure quenching can be guaranteed, the problems of deviation, ovality and the like are solved, and the machining quality is improved.

The invention discloses a carving machine device for precise milling or grinding of hard materials, and relates to the technical field of metal or hard material machining, the carving machine device comprises a lathe bed, a main shaft, a servo motor, a workbench, a thermal deformation pre-compensation module and a standby tool magazine, and the carving machine device has the advantages that the influence of thermal deformation is effectively restrained through the full-system temperature control design, and the working efficiency is improved; the precision stability of long-time continuous machining is guaranteed, machining errors caused by temperature fluctuation are reduced, the equipment reliability is improved, the geometric precision and surface quality of hard material machining are remarkably improved, precise forming of complex curved surfaces is achieved, the requirements for micron-scale size control and nano-scale surface roughness are met, the machining precision reaches the international advanced level, and the application prospect is wide. Workpiece clamping, tool changing and detecting time is greatly shortened, automatic batch production of hard material parts is achieved, manual intervention errors are reduced, the production efficiency and the yield are improved, and the requirement of high-end manufacturing for intelligent machining is met.

This invention discloses a device that improves the yield and output of medium and heavy plates. The device includes a support frame, a ladle at the top of the support frame, an intermediate ladle connected to the bottom of the ladle, a continuous casting machine below the intermediate ladle, a water-cooled crystallizer connected to the bottom of the intermediate ladle, and an arc-shaped mounting frame at the bottom of the water-cooled crystallizer. Multiple support rollers are evenly rotatably mounted on the bottom of the arc-shaped mounting frame. Above each support roller, a set of three-section roller mechanisms is arranged on the arc-shaped mounting frame. Each three-section roller mechanism includes two symmetrically arranged end pressure rollers rotatably connected to the side plates of the arc-shaped mounting frame, and a middle pressure roller located between the two end pressure rollers. This invention can effectively improve production efficiency, reduce equipment costs, decrease the occurrence of billet center segregation and cracks, and improve the solidification quality of the cast billet and the overall performance of the steel plate.

This invention relates to the field of material mixing injection molding technology, specifically a creep forming method for mixing injection molding carbon fiber sheet products, comprising the following steps: shaping by applying force with a robotic arm; controlling the temperature to keep the material under stress below plastic deformation for a long time, and continuously baking at a constant temperature to achieve the shaping effect; and correcting the material using a shaping fixture. The main process is to shape the material through creep. This invention has a reasonable technical approach and improves the yield rate of production.

The present invention belongs to the technical field of rail production and specifically discloses a rail pre-bending method. The rail pre-bending method comprises the following steps: Step 1: Obtaining the shape parameters of the arc formed when a rail rolled piece of the same specification is bent under natural cooling, and using the shape parameters to determine a third-order Bezier curve corresponding to the rail rolled piece of the same specification; Step 2: Pre-bending the rail rolled piece of the same specification according to the third-order Bezier curve determined in Step 1. The rail pre-bending method of the present invention can effectively improve the yield rate of the rail rolled piece, so that it can be smoothly straightened in a straightening machine.

The application relates to the technical field of steel rolling, and discloses a hot continuous rolling strip head thickness deviation control method and device and electronic equipment. The method comprises the following steps: acquiring an actual head thickness value of a current strip in a hot continuous rolling mill rolling process and a target head thickness value of the current strip; determining a head thickness deviation value of the current strip according to the actual head thickness value and the target head thickness value; acquiring an actual rolling force of the current strip and a calculated rolling force of the current strip; determining a rolling force deviation value of the current strip according to the actual rolling force and the calculated rolling force; and determining a target set rolling force of a next coil of the current strip according to the head thickness deviation value and the rolling force deviation value. The technical scheme disclosed by the application can effectively improve the strip head thickness deviation problem caused by the rolling force setting calculation deviation, reduce the thickness out-of-tolerance occurrence rate, improve the product thickness control precision and the yield rate.

The utility model belongs to the technical field of pole molds, and discloses a pole mold structure. The pole mold structure comprises a punch and an anti-sticking layer, wherein the punch is used for extruding a pole. The anti-sticking layer is arranged on the extrusion end face, close to the pole, of the punch, and the anti-sticking layer completely covers the extrusion end face of the punch. The thickness of the anti-sticking layer is h, and 0.1 mm is smaller than or equal to hlt; and the thickness is 0.6 mm. The pole mold structure is high in use efficiency; and the yield of the pole column produced by the pole column mold structure is high.

The invention relates to the technical field of material processing, in particular to an automatic mixing control device and method applied to thermosensitive coating processing, and the method comprises the steps: carrying out the difference analysis of the reaction information of the (n-1) th operation in the current batch and the reaction information of the (n-1) th operation in each historical batch, so as to determine similar batches; according to the quantity difference of the accumulatively added target raw materials of each similar batch and the current batch, the quantity difference of the target raw materials added in the (n-1) th operation and the accumulative influence coefficient of the target raw materials; and determining the quantity of the target raw material added in the nth operation of the current batch according to the quantity of the target raw material added in the nth operation of each similar batch, the calculation weight of each similar batch and the similar coefficient of each similar batch. The adding amount of the raw materials can be dynamically adjusted according to the real-time raw material reaction condition, and the yield of the thermosensitive coating is increased.

The present invention discloses an adaptive control method for cutting long materials. A cutting device is provided on the long material production line, and the cutting device is controlled by a main control computer; the adaptive control method for cutting long materials of the present invention comprises: S1, the main control computer determines that the head end of the long material reaches the cutting device; S2, the main control computer determines the next cutting position according to a pre-set long material cutting strategy plan; S3, the main control computer controls the cutting device to cut the long material once according to the next cutting position determined by the plan; S4, repeats S2 and S3 until all the long materials are cut. The adaptive control method of the present invention realizes the dynamic planning and adjustment of the long material cutting position during the cutting process, so that it can effectively deal with external interference such as operator intervention, abnormality of peripheral auxiliary equipment, etc., realizes adaptation to external interference, thereby improving the cutting yield rate and improving work efficiency.

The present application discloses a packaging bag edge sealing device and packaging bag making equipment, the edge sealing device includes a supporting assembly and an edge sealing assembly, the supporting assembly is arranged on a frame, the supporting assembly includes a supporting part, and a side guide part arranged on one side of the supporting part in the width direction of the frame, the supporting part supports the folded base material from the upstream into a three-dimensional layered structure, the two side edges of the base material are guided by the side guide parts and the edges are connected to each other; the edge sealing assembly is arranged on the frame, on the side of the side guide part away from the supporting part; the edge sealing assembly includes a sealing head that can be rotated around the width direction; this edge sealing device can not only use the side guide parts to guide the side edges to be sealed to the sealing area, but also use the sealing head that can be rotated around the width direction to dynamically adjust the two side edges to be sealed, which is not only conducive to improving the aesthetics of the packaging bag, but also can improve the yield rate of packaging bags during batch production.

The invention discloses a hardware handle which is manufactured through the steps that a plastic inner support is provided, the plastic inner support is placed in an injection mold to be subjected to injection molding, and the hardware handle is obtained after cooling. According to the invention, the plastic inner bracket is adopted, so that the yield of the product is improved from 30% to about 80% when the product is subjected to a high-low temperature impact test, the appearance quality of the surface of the product is also improved, the injection molding cooling time is shortened, the product cost is also reduced, and materials are also conveniently recycled for defective products.

The present invention discloses a method and system for evaluating the degree of printing defects of corrugated cartons, including detecting the flatness of the printed corrugated cartons to be tested, screening out the corrugated cartons to be tested that meet the preset conditions as the target detection objects, collecting their printing images, inputting them into X types of defect types in the clustering algorithm for clustering after feature extraction, determining the defect analysis results of the target features according to the clustering results. When the clustering result is X types of defect types, determining the corresponding defect types and quantities according to the clustering clusters where the target features are located; when the clustering result is more than X types of defect types, using spectral analysis to determine the defect types and quantities of the target features; calculating the degree of printing defects of the corrugated cartons to be tested, and feedback-adjusting the next printing parameters of the corrugated cartons. The present invention takes into account the influence of flatness, determines the defect types through the clustering algorithm to evaluate the defect degree, and feedback-adjusts the next printing parameters, improving the accuracy of defect evaluation and the yield rate of the next printing process.

The application provides a method for reducing wafer orientation deviation after cutting, which comprises the following steps: dividing a wire cutting machine into multiple groups, obtaining a wire cutting deviation rule of the wire cutting machine in different horizontal zero target ranges, and cutting a to-be-cut wafer rod by matching the corresponding wire cutting machine according to the wire cutting deviation rule, so as to reduce the wafer orientation deviation after cutting. For products with a wafer specification of ≤±0.1°, the defective rate is reduced from 3.5% to below 0.5%. For ultra-high specification products with a wafer specification of ≤±0.05°, the yield rate is above 98.5%.

To provide a drive device capable of reducing costs due to breakdowns and increasing the rate of non-defective products.SOLUTION: In a drive device 100, a lead holder 10 has a plurality of high side driving areas 11, at least one low side driving area 13, a plurality of high side switching areas 14 and a plurality of low side switching areas 15, and a plurality of high side driving modules 20 are respectively installed in the plurality of high side driving areas 11, each of the high side driving modules includes an inner package 21, a primary side circuit, a driving side circuit and a bootstrap diode, the inner package packages the primary side circuit, the driving side circuit and the bootstrap diode, the inner package has a bottom surface on which a plurality of pins are installed, and the plurality of pins are electrically connected to the primary side circuit, the driving side circuit and the bootstrap diode.SELECTED DRAWING: Figure 1

The application discloses a rolling method for improving the yield of a special wide and thick steel plate, and the thickness of the steel plate ranges from 130 mm to 150 mm, and the width ranges from 3400 mm to 3500 mm; the steel plate is rolled by using a reversible four-roller rolling mill and a vertical roller mill; and the specific operation is as follows: after the blank is discharged from a heating furnace, the reversible four-roller rolling mill is used for longitudinal shaping rolling; after the longitudinal shaping is completed, transverse shaping rolling is carried out; after the longitudinal and transverse shaping rolling of the steel plate is completed, the blank is alternately subjected to width expansion rolling and edge extrusion rolling; and after the edge is flattened, longitudinal finished product rolling is carried out. The rolling method can obviously reduce the edge concave degree, and the cutting edge amount is reduced by 200-250 mm; the production and manufacturing process is simple, the product quality is stable, and batch production can be realized.

The present invention provides a substrate processing method that can form a groove line without cracks at a high yield rate and then change it into a groove line with cracks even for a brittle material substrate with an extremely thin plate thickness. The substrate processing method of the present invention includes: a first step of forming a groove line without cracks by pressing and fixing a scribing tool of a fixed blade and moving it in a forward direction from a position of a substrate that is apart from an edge inward as a scribing start point and a scribing end point; and a second step of forming an auxiliary line by pressing and moving a cutter wheel in a manner that intersects at an acute angle of 3 to 25 degrees with the groove line in a direction opposite to the forward direction from the intersection position to guide a crack to the groove line from the intersection position, thereby changing the groove line into a crack line with cracks.

The present invention discloses a processing module and processing technology for a connector. The lower fixed plate and the upper fixed plate are provided with at least a punching step, a stretching step, a rotary cutting step, a tearing step, a forming step, and a blanking step. The punching step is provided with a punching die, the stretching step is provided with a stretching die, the rotary cutting step is provided with a rotary cutting device, the tearing step is provided with a tearing die, the forming step is provided with a forming die, and the blanking step is provided with a blanking die. The present invention uses a module to process a material strip to obtain a connector that integrates a main body, a positioning piece, and a positioning groove. This saves subsequent welding or assembly procedures, simplifies the processing procedure, improves production efficiency, improves production efficiency, improves product consistency, saves the circulation cost of semi-finished workpieces, and avoids the generation of defective products during the handling process. This improves production efficiency, reduces processing costs, reduces processing errors, improves processing accuracy, and improves the yield rate.

The invention provides a method for manufacturing a wiring substrate, and the yield in the manufacturing of the wiring substrate is improved. A method of manufacturing a wiring board according to an embodiment includes the steps of: preparing a glass substrate including one surface having a product region; and three or more conductor layers (12) and insulating layers (11) are laminated on only one surface within the range of the product area. The difference between the thermal expansion coefficients of the glass substrate and the insulating layers (11) is 13 ppm / DEG C or less, the shape of each product region is a rectangle having a size of each side of 80-240 mm, and the step of laminating the conductor layers (12) includes forming a resist layer having a resist pattern, the minimum width of the wiring included in the conductor layers (12) being 2 [mu] m or less, and the minimum width of the wiring included in the conductor layers (12) being 2 [mu] m or less. The minimum value of the interval between the wirings is 2 [mu] m or less, and the step of forming the resist layer includes exposure by direct imaging exposure.

The invention relates to the field of mechanical pressure processing, in particular to a nickel-based alloy ingot electrode blank grinding technology, which achieves the purposes of improving the grinding quality, reducing the metal loss and improving the yield by researching the grinding technology and adopting a scientific and accurate grinding method and an existing grinding equipment reasonable matching technology.

The utility model discloses a double-sided belt sander, and belongs to the technical field of grinding and polishing devices. The utility model discloses a double-sided belt sander which comprises a rack, the supporting frame is fixedly connected to the rack; the first roller is rotationally connected to the supporting frame; the second rollers are rotationally connected to the supporting frame; the grinding belt is connected to the first roller wheel, and the grinding belt is attached to the second roller wheel; the polishing wheel is rotationally connected to the rack; the conveying belt is connected to the rack; the feeding plate is fixedly connected to the rack; a blank part is ground through the device, high points and most planes can be effectively ground through the grinding belt, the phenomena of edge breakage and unfilled corners of the part can be reduced, the yield in the production process is effectively improved, meanwhile, the grinding belt and the grinding wheel are used in a matched mode for grinding, and the production efficiency is improved. And the production efficiency is effectively improved.

The invention discloses a low-Ni Q355NHB alloy and a preparation method thereof, and belongs to the technical field of metal smelting. The alloy comprises the following components in percentage by weight: 0.10%-0.15% of C, 0.20%-0.40% of Si, 0.90%-1.20% of Mn, less than or equal to 0.020% of P, less than or equal to 0.010% of S, 0.20%-0.40% of Cu, 0.40%-0.60% of Cr, 0.10%-0.20% of Ni, 0.010%-0.030% of Ti, 0.020%-0.050% of Al, less than or equal to 0.008% of N and the balance of Fe and inevitable impurities. The Ti element is added into the Q355NHB alloy, the content of the Cu element and the content of the Ni element are adjusted, the weather resistance index of the alloy is guaranteed, meanwhile, the yield is increased, and the surface quality and the uniformity of the internal structure of the steel are guaranteed by controlling parameters of the procedures of converter steelmaking, refining, continuous casting, slow cooling, heating, rolling, slow cooling after rolling and the like.

The application discloses a processing method of a compound semiconductor wafer, which comprises the following steps: attaching the compound semiconductor wafer to a carrier film, fixing the carrier film in a fixing ring, and packaging the edge of the carrier film through the fixing ring to form a bearing assembly; and performing a cutting process, a film expanding process, an etching process and a carrier film retraction process in the form of the bearing assembly. In the continuous process, the wafer is maintained in the form of a bearing assembly, the distance between the crystal grains is expanded after pre-expanding, so that the side wall of the cutting path can be etched clean, the yield rate meets the standard, then the carrier film is retracted to the initial state and is suitable for subsequent process steps, the bearing structure of the wafer does not need to be replaced, the process is simplified, the production cost is reduced, and the production efficiency is improved.

The present invention relates to the field of substrate classification technology, and more particularly to a method, device, electronic device, and storage medium for determining substrate notch grades. The method first obtains the surface width of the substrate notch; then, based on the surface width, the surface grade is determined as P or F; when the surface grade is P, the substrate is subjected to surface symmetry and edge collapse determinations, and the substrate grade is determined based on the results of the surface symmetry and edge collapse determinations; finally, when the surface grade is F, the substrate is subjected to edge collapse determination. When the edge collapse determination result is below the edge collapse grade threshold, the substrate is determined as a downgraded substrate; otherwise, the substrate is reworked. The method can more accurately classify the processing grade of the notch, adapting to the needs of subsequent different processing, and improving the yield rate and processing efficiency.