41results about How to "Solve the flatness" patented technology

The invention relates to a functional spunlace dusting non-woven fabric and a preparation method thereof, the functional spunlace dusting non-woven fabric comprises a spunlace non-woven fabric base layer, and the technical key point is that a gum dipping coating and a dusting layer are arranged on the surface of the spunlace non-woven fabric base layer. The impregnation process and the powder scattering process are both completed after the spunlace process, that is, different from a traditional process that impregnation or powder scattering is conducted between a spunlace machine and a drying device, compared with a traditional process, the liquid carrying rate of the product is high, and the functional requirement for the surface stiffness of the product is easily met; and meanwhile, the breadth, the cloth cover style, the physical indexes and the like of the product can be better controlled. The problem that an existing non-woven fabric surface coating easily generates glue points and is uneven is solved, the non-woven fabric has waterproof, oil-proof and stiff functions, can be compounded with sponge, non-woven fabric, woven fabric and the like after being heated, and is good in compounding effect, smooth in surface after being compounded and not prone to generating wrinkles.

The invention provides a method for controlling the surface flatness of a large-size epitaxial wafer, and the method comprises the steps: detecting the film thickness of a grown sample wafer, and obtaining the uniformity of the film thickness; if the film thickness uniformity is greater than or equal to the standard value, obtaining a radial film thickness linear graph of the sample; obtaining a radial film thickness linear relation based on the radial film thickness linear graph; based on the radial film thickness linear relation of the sample wafer, determining the area where the minimum or maximum film thickness of the sample wafer is located; based on the area where the minimum film thickness or the maximum film thickness is located, the corresponding technology during sheet growth is adjusted, and a qualified sheet is obtained. According to the control method for the surface flatness of the large-size epitaxial wafer, the positions of different film thicknesses can be adjusted in a targeted mode through different control methods, the problem that the surface flatness difference is large or abnormal can be effectively solved, the accurate and qualified surface flatness is obtained, the surface quality of the epitaxial wafer is improved, the production cost is reduced, and the production efficiency is improved. The control method is effective, safe and reliable.

The invention relates to the technical field of bridge demolition construction, in particular to a pier column demolition device which comprises a first fixing assembly, a first positioning assembly, a second fixing assembly, a second positioning assembly, a connecting piece and a fretsaw, the first fixing assembly comprises a first cohesion side, the first positioning assembly is connected with the first fixing assembly, and the second positioning assembly is connected with the second fixing assembly. The first fixing assembly comprises a first cohesion side to adjust the posture of the first cohesion side, the second fixing assembly comprises a second cohesion side, and the second positioning assembly is connected with the second fixing assembly to adjust the posture of the second cohesion side. According to the dismounting device for the pier column, due to the fact that the design of the first fixing assembly and the second fixing assembly is adopted, and the posture of the cohesion side is adjusted through the positioning assembly, rapid and accurate fixing and positioning can be achieved outside the pier column, and the problems that in the prior art, fixing equipment is complex in structure and tedious to mount and dismount are effectively solved; and therefore, the technical effects of quickly positioning and reducing the construction time are achieved.

The present invention relates to the technical field of PCB board detection, specifically to a PCB board coating quality detection method, which includes segmenting the collected PCB image to obtain a three-proof paint coverage area map; performing edge filtering processing to obtain an image containing bubble edge information; extracting bubble features to obtain a bubble feature map set; calculating a bubble result set; and classifying the bubble result set to obtain conclusions and suggestions. The PCB board coating quality detection method detects by segmenting the collected PCB image to obtain a three-proof paint coverage area map, and then performing edge filtering processing, extracting bubble features, calculating bubble size and other steps to obtain the bubble situation of the PCB board, and classifying the bubble result set to obtain conclusions and suggestions, thereby realizing the detection of PCB board coating bubbles and solving the problem of blistering or bubbles on the PCB, which affects the flatness and insulation performance of the coating.

The utility model discloses a plastic material sawing processing device which comprises a machine frame, a workbench arranged on the top of the machine frame, a sawing groove formed in the middle section of the workbench, a sawing mechanism arranged in the sawing groove, clamping and positioning mechanisms arranged on the workbench on the two sides of the sawing groove, and a dust collecting mechanism arranged on the lower portion of the machine frame and connected with the sawing groove. The plastic plate feeding device is compact in structure and easy and convenient to use and operate, the plastic plate can be automatically fed to a sawing machine for automatic cutting only by adjusting the cutting position of the plastic plate, cutting can be facilitated, cutting wiring accuracy is guaranteed, the problems that the cutting face is uneven and secondary cutting is caused due to manual operation are solved, and production efficiency is improved. The safety and the cutting efficiency are greatly improved, and safety production is facilitated; and on the other hand, scraps and dust generated in the plastic plate processing treatment process can be adsorbed and collected in a centralized mode, environment pollution and harm to the body health of workers are prevented, and the device is more environmentally friendly and safer.

The invention relates to the technical field of bridge construction equipment, in particular to a detection device for detecting bridge construction pavement flatness, which comprises a fixed plate, a lifting box, a detection mechanism and a lifting mechanism, a plurality of mounting grooves are formed in the lifting box; the detection mechanism comprises a signal conversion structure and a lifting trigger mechanism, the signal conversion structure comprises a touch screen and a touch pen, a pen point of the touch pen abuts against the touch screen, the lifting trigger mechanism comprises a cover plate, a lifting rod, a motion conversion structure and a reset structure, and the lifting rod perpendicularly penetrates through the cover plate and is movably connected with the cover plate. The motion conversion structure is used for converting vertical motion of the lifting rod into rotation of the touch pen around the lifting rod, and the reset structure is used for providing downward thrust for the lifting rod; the lifting mechanism is used for adjusting the height of the lifting box; according to the invention, the lifting box, the detection mechanism and the lifting mechanism are arranged, so that error loss of signal transmission in an indirect detection mode is avoided, and the accuracy of signal detection is greatly improved.

The embodiment of the utility model discloses an electric well floor penetrating cable trough box pre-embedding device which comprises a pre-embedding box body, connecting pieces and fixing parts, openings are formed in the upper end and the lower end of the pre-embedding box body correspondingly, and the two connecting pieces are connected to the first side wall and the second side wall, opposite to each other, of the pre-embedding box body correspondingly; one end of each connecting piece is rotationally connected with the end, close to the opening, of the first side wall or the second side wall, the upper end and the lower end of the embedded box body are each provided with two connecting pieces, and connecting holes are formed in the connecting pieces; and one end of the fixing piece is connected with a first side wall or a second side wall or a third side wall or a fourth side wall of the pre-embedded box body, which is arranged opposite to the first side wall or the second side wall or the fourth side wall. The problems that in the prior art, an electric well floor penetrating cable trough box is constructed in a hole reserving mode, so that the construction efficiency and the construction quality are low, the construction cost is high, and the appearance quality of installation engineering is poor are solved.

The utility model relates to special material equipment with a heat preservation structure, which comprises tower equipment which is an integrated transition tower body with a cylindrical upper part, a conical middle lower part and a U-shaped barrel body at the bottom; a heat preservation mechanism is arranged in the outer area of the lower-middle-portion conical body, and the bottom end of the lower-middle-portion conical body is supported on the bottom platform through a steel pipe support. The scheme adapts to equipment surface unevenness and gravity change, the welding space above the reinforcing ring is utilized, and through welding of the galvanized steel sheet, the problem that heat preservation nails cannot be directly welded to the surface of special material equipment is solved; by means of the method, the problems that the surface of special material equipment is uneven and affected by gravity are effectively solved, and it is ensured that the heat preservation material is tightly attached to the surface of the equipment; by improving the heat preservation effect, the energy consumption of the equipment in the using process can be reduced, and the obvious energy-saving effect is achieved; the improvement of the heat preservation effect means less heat loss within a certain period of time, the requirement for additional energy is reduced, and the principles of environmental protection and energy conservation are met.

The present application discloses a novel leakage current sensor for photovoltaic systems, which includes a housing, a winding assembly, a magnetic probe assembly, a magnetic core assembly and an electromagnetic shielding member. The winding assembly is arranged in the housing. The winding assembly includes a coil base and a spiral coil. The coil base has a through hole and a spiral slot hole located in the through hole in the axial direction. The spiral coil is arranged in the spiral slot hole. The magnetic probe assembly is arranged in the through hole. The magnetic probe assembly has an amorphous material body with low saturation magnetic flux and a MEMS coil. The MEMS coil is etched in the amorphous material body. The magnetic core assembly is arranged in the housing. The magnetic core assembly has a first side and a second side opposite to each other. The first side has a mounting groove. Part of the first side and the mounting groove are located in the through hole, and the magnetic probe assembly is located in the mounting groove. The present application can greatly improve the winding efficiency of the winding assembly and the magnetic probe assembly, reduce the structure of the leakage current sensor, facilitate assembly, and meet the requirements of energy-saving and emission-reduction production.

The invention provides an electrode printing and burning processing method which comprises the following steps: S1, coating the end face of an electrode base body with silver paste, and leveling and drying; s2, carrying out pre-burning and glue discharging treatment on the electrode substrate coated with the silver paste slurry in the step S1; and S3, carrying out sintering infiltration treatment on the electrode substrate subjected to pre-sintering and glue discharging treatment in the step S2. According to the method, the pre-burning glue discharging process is added between the silver paste printing process and the sintering infiltration process, the glue discharging time of an organic carrier in the silver paste is prolonged through pre-burning glue discharging, glue discharging is sufficient, and it is avoided that in the subsequent high-temperature sintering infiltration process, hollow protrusions are formed on the surface of an electrode due to the fact that the organic carrier is subjected to higher temperature and exhaust is intensified; the problem that in the prior art, the electrode printing and burning machining surface is uneven, and consequently the poor effect is caused is effectively solved.

The invention provides self-positioning earth-covering type storage tank welding auxiliary equipment, which belongs to the technical field of storage tank processing and comprises a base, a moving mechanism, a mounting frame, a supporting seat, a guide rail, a servo motor, a welding mechanism, a bidirectional screw rod, a first motor, a guide rod, a sliding block, a supporting frame, a clamping ring, a lifting mechanism, a supporting arm, a second motor and a rotating ring. Moving mechanisms are arranged at four corners of the lower end in the base; a mounting frame is fixedly connected to the top of the base, supporting seats are symmetrically and fixedly connected to one side of the bottom of the mounting frame, guide rails are fixedly connected to one sides of the supporting seats, and servo motors are slidably connected to the outer sides of the guide rails; and a two-way screw rod is arranged in the base, one end of the two-way screw rod is fixedly connected to the output end of a first motor, and through the arrangement, the problem that the workload is increased while the labor intensity is increased due to the fact that the phenomenon of uneven welding or omission easily occurs during manual welding is solved.

The utility model provides a hang tag punching and conveying device for hang tag production, and belongs to the technical field of hang tag production. The hang tag punching and conveying device comprises a workbench, a feeding belt conveyor, a support, a supporting plate, an electric telescopic rod and a punching assembly. A feeding belt conveyor is fixedly arranged in the center of the upper surface of the workbench, a support is fixedly arranged on the inner side of the upper surface of the workbench, a supporting plate is fixedly arranged below the outer side surface of the support, an electric telescopic rod is fixedly arranged at the top of the support, and a punching assembly is fixedly arranged at the output end of the electric telescopic rod. The hang tag punching device not only can prevent the hang tag from being adhered to the punching head during punching, but also can prevent the hang tag from being adsorbed to the stabilizing box, and can prevent a belt on the feeding belt conveyor from deforming during punching, so that the flatness of the hang tag during punching is ensured, and the punching quality is ensured.

The invention relates to the technical field of pavement construction, particularly discloses a self-stabilizing template system for ardealite pavement base construction, and solves the technical problems of low stability and insufficient edge rolling support of an existing template in the existing ardealite pavement base construction process. The self-stabilizing formwork system comprises a fixing assembly at least partially arranged underground; the edge supporting piece is perpendicular to the fixing assembly and detachably connected with the fixing assembly; the first inclined supporting piece is obliquely arranged, and the two ends of the first inclined supporting piece are connected with the fixing assembly and the edge supporting piece correspondingly; one end of the second inclined supporting piece is connected with the edge supporting piece, and the other end of the second inclined supporting piece is anchored to the ardealite subbase layer. The device can meet the requirement of edge mechanical rolling, and provides good support for the edges of a base layer and a subbase layer.

The utility model discloses a plate butt welding side edge leveling device, a plasma butt welding machine is used for plate butt welding, and the butt welding machine is provided with a welding platform for placing a butt welding plate, a pressing plate, a welding gun and the like. The side edge leveling device is a driving mechanism which is arranged on the pressing plate and close to the side edge of the plate and used for driving the side edge of the plate to deform. An auxiliary driving mechanism opposite to the driving mechanism in adjusting direction is further arranged on the welding platform. According to the side edge leveling device, through the matching effect of the driving mechanism and the auxiliary driving mechanism, under the supporting of the auxiliary driving mechanism, the driving mechanism drives the warped edge to bend downwards in the reverse direction, then the side end face of the warped edge can be horizontally aligned with the side edge of a plate on the opposite side, the welding flatness is improved, and the welding quality is improved. The problem that the surface flatness of the whole plate after butt welding is affected due to edge warping in the plate machining process at present is solved.

The utility model discloses a multi-layer mirror signboard which comprises a steel support, a circle of inner frame is arranged on the periphery of the front end of the steel support, an LED lamp strip is arranged on the inner side of the inner frame, single-transparent tempered glass is arranged at the front end of the inner frame, silver mirror glass is arranged at the rear end of the inner frame, a character structure is arranged on the silver mirror glass, a bottom plate is arranged on the back of the steel support, and an LED lamp is arranged on the bottom plate. And the LED lamp directly faces the position of the character structure. According to the principle of refraction and reflection of light, the mirror surface layer of the inner frame on the inner side of the steel support and the mirror surface layers of the front glass and the rear glass are used for refraction and reflection, the stereoscopic visual effect is generated, and the visual effect that internal light-emitting characters are sequentially overlapped from far to near in a progressive mode is achieved.

The invention relates to a high-precision ground construction control device and method and relates to the technical field of ground construction, a plurality of elevation rods are vertically and fixedly connected to structural supporting steel bars, and positioning pieces are slidably connected to the elevation rods and used for elevation identification; the threaded rods are welded to the multiple horse stool ribs to be matched with the fixing nuts, the adjusting nuts and the positioning pieces so that elevation positioning of bottom plate pouring can be conducted, and bottom plate concrete pouring is completed; the position of a construction joint is determined, a positioning steel bar is erected on a floor formwork, then a plurality of threaded rods are welded to the positioning steel bar at equal intervals, elevation positioning of bottom plate pouring is carried out in cooperation with a fixing nut, an adjusting nut and a positioning piece, floor concrete pouring is completed, and the flatness problem of the building floor at the position of the construction joint can be effectively solved. And the requirement of the integrated floor on the flatness is met.

The utility model relates to the radish processing technical field especially is a kind of radish cleaning grading packaging transmission mechanism, including collection bin, the top of collection bin is equipped with collection groove, the inside of collection bin is equipped with the guide groove at the bottom end of collection groove, the right side of collection bin is fixedly connected with fixed frame, the inside of fixed frame is fixedly connected with the annular pipe of interval arrangement, the communication of annular pipe is equipped with the connecting pipe of fixed connection with fixed frame, the rear side of fixed frame is fixedly connected with first motor, in the utility model, the collection groove and guide groove of being set can guide radish, the annular pipe, connecting pipe and multiple groups of spray head of being set can simultaneously clean radish all directions, by and brush layer cooperation simultaneously cleaning radish all directions, by multiple groups of flushing structure and brush layer radish surface is cleaned and cleaned multiple times, to ensure radish surface cleaning effect.

The utility model discloses a refrigerator door handle plastic extrusion splicing structure which comprises a door cover body, a decorative plate and a decorative strip are arranged on the door cover body, a guide limiting strip is fixedly connected to the door cover body, a guide positioning block is fixedly connected to the decorative plate, the guide limiting strip is matched with the guide positioning block, and the decorative strip is fixedly connected with the guide limiting strip. The decorative plate is provided with a first screw, the first screw is matched with the door cover body, the decorative strip is provided with a plurality of second screws, the second screws are matched with the door cover body, and the door cover body is fixedly connected with a seam filling structural rib. According to the utility model, the door cover body, the decorative plate and the decorative strip are all made of plastics through co-extrusion, and then various silk-screen printing or paint spraying can be carried out in a splicing manner; the gap filling structure groove and the gap filling structure rib are arranged, so that the gap problem between the door cover body and the door handle due to the fact that an existing integral decoration strip serves as the door handle is solved.

The utility model relates to the technical field of furniture, in particular to a table with table legs capable of being folded in a staggered mode, which comprises a table board and two groups of foldable supporting components arranged on two sides of the bottom of the table board. Each foldable supporting assembly comprises a cross beam frame fixedly installed at the bottom of the table board and two table legs hinged to the cross beam frame, and the two foldable supporting assemblies are oppositely installed in a left-right staggered mode, so that the four table legs are staggered in the left-right direction in the folded state and located at the same horizontal height. According to the folding table, the four table legs are staggered left and right in the folding state and are located at the same horizontal height, so that a flat stacking surface is formed, a plurality of tables with the same design can be placed in a stacking mode after being folded, the vertical space is fully utilized, and the folding table is convenient to use. The folding table solves the problem that a traditional folding table cannot be stacked efficiently due to the fact that table legs are uneven, and a user can control the overturning and folding process of the table legs according to needs through introduction of the folding control component.

The utility model relates to the technical field of packaging material processing, and discloses a packaging material plate flattening device which comprises a shell, a telescopic cylinder is arranged at the top of the shell, one end of the telescopic cylinder is fixedly connected with a pressing plate, a bearing plate is arranged below the pressing plate, the bearing plate is connected with a base in a sliding mode, and a spring is arranged in the base. A plurality of fixing supports are arranged on the outer side of the base, the fixing supports are rotationally connected with a plurality of connecting plates, and one ends of the connecting plates are matched with a plurality of side pressing plates in a clamped mode. A spring is arranged in the base, a fixing support is arranged on the outer side of the base to rotate a connecting plate, and the connecting plate is clamped and matched with a side pressing plate, so that when the bearing plate is pressed downwards, the side pressing plate is driven to apply extra pressure to the side face of a packaging material plate, and the problem that side face edge covering paper is bent or wavy and uneven is effectively solved.

The invention provides a polishing device and a wafer polishing method. The polishing device comprises a bearing table, a polishing pad, at least one polishing head and a pressure applying unit. The at least one polishing head is uniformly arranged on the bearing table; the pressure applying unit is arranged on the bearing table, and the pressure applying unit is arranged on the edge of the bearing table; the polishing pad is arranged between the bearing table and the polishing head and between the bearing table and the pressure applying unit, and the center of the polishing pad and the center of the bearing table are both located on the axis of the polishing pad. According to the scheme, by arranging the pressure applying unit and the polishing head, pressure can be applied to the polishing pad at the same time, it is guaranteed that all the positions of the polishing pad are stressed in the operation process of the polishing device, and the pressure borne by all the positions of the polishing pad is balanced. The problem that in the prior art, as the service time is prolonged, the thickness difference is generated between the center area and the edge area of the polishing pad, and then the flatness of a wafer is affected is solved.

The invention discloses a semiconductor structure and a manufacturing method thereof. The semiconductor structure comprises a substrate, a source region, a drain region and a gate structure. The source region is located in the substrate. The drain region is located in the substrate. The gate structure is disposed on the substrate and between the source region and the drain region, and includes a first sub-gate structure and a second sub-gate structure. The first sub-gate structure is adjacent to the source region and includes a first sub-gate insulating layer. The second sub-gate structure is adjacent to the drain region and includes a second sub-gate insulating layer. The second sub-gate insulating layer is separated from the first sub-gate insulating layer. The first sub-gate insulating layer has a first thickness, the second sub-gate insulating layer has a second thickness, and the second thickness is greater than the first thickness.

This invention belongs to the field of building construction technology, specifically relating to a combination of tools and methods for constructing floor slabs at corner pipe locations. It involves setting up sleeve modules, pins, plug-in components, and locking components. When the two end faces are joined, the first protrusions and first grooves on the two sleeve modules are operably connected to each other, and the two lower end faces are flush. The locking component can surround the corner pipe and be fitted onto the end face of the plug-in component facing away from the corner pipe, allowing adjustment of the sleeve module's height. The flush lower end of the sleeve is pre-supported at the corner pipe opening, where concrete pouring is difficult and quality problems are prone to occur. During construction, the lower end of the sleeve module forms a constraint on the concrete surface, solving the problem of poor appearance quality and flatness of the concrete surface caused by difficulties in troweling concrete at corner pipe openings.

This utility model discloses a corner profile assembly for a continuous curved curtain wall, including a standard profile, a corner profile, and an edge-sealing profile. Curved units are formed on the outer edges of the standard profile and the edge-sealing profile. The standard profile has interlocking tongues and grooves on both sides of its outer edge, with a connecting edge formed inside the tongue and groove slot. The edge-sealing profile has an interlocking tongue on its inner side and the connecting edge serves as its outer surface. The corner profile includes a corner edge and a connecting edge in cross-section, with curved units formed on the two outer edges of the corner edge. A tongue and groove slot is provided on the outer side of the corner profile, with the connecting edge formed inside the tongue and groove slot. A retaining folded edge is formed at the base of the connecting edge, and it is assembled and connected to the positioning keel via a fixing structure. This utility model meets the dual requirements of modern buildings for the assembly performance and aesthetics of the corner sections of facades, providing the construction industry with a more efficient and environmentally friendly curtain wall solution.

The invention discloses a spray device for filling between material layers, comprising a T-shaped nozzle, a positioning adjustment mechanism, a sleeve, a triangular box, a soft conduit, a short tube, a cylinder, a feed conduit and a motor. The invention is beneficial in that: the middle part of one side of the T-shaped nozzle is raised and located in the space between the printing material layers, so as to achieve filling of the space between the printing material layers, and at the same time, the electric heating plates on both sides of the raised part in the middle of one side of the T-shaped nozzle are in contact with the surfaces on both sides of the printing material layers, so as to play a role of heating and ironing, enhance the firmness of the connection between the filling material and the printing material, and the filling surface is flat and smooth, so as to solve the problem that the outer side surface of the printing material layer is uneven and the subsequent processing is difficult; a more stable control implementation surface can be formed, so as to avoid the shaking of the T-shaped nozzle after being stationary, and meet the use and adjustment requirements of the T-shaped nozzle for filling in the interlayer space of different depths and sizes.

The utility model provides a frame structure of a wall-mounted curtain, and relates to the field of wall-mounted curtains. Comprising an upper frame structure and a lower frame structure, the upper frame structure is fixed to one long edge of a curtain, the lower frame structure is fixed to the other long edge of the curtain, each of the upper frame structure and the lower frame structure comprises a foam rubber mat, a frame, two elastic bands and an end cover, the foam rubber mats are fixed to the two sides of the long edge of the curtain, and the foam rubber mats are arranged in the frames in a penetrating mode. The two end covers are arranged at the two ends of the frame respectively, and the elastic band is connected between the end covers and the foam rubber mat. The problems of unevenness and wrinkling of the screen surface are solved through the assembly mode of the foam rubber mat and the elastic band, production and assembly are simple, operation is convenient, and the overall production efficiency and the yield of products are greatly improved.

The present invention relates to an embedded connection structure and connection method of a vertical light steel keel, wherein an embedded connection structure of a vertical light steel keel comprises a vertical keel and a transverse keel perpendicular to each other, and a connecting buckle for connecting the vertical keel and the transverse keel, wherein the front part of the connecting buckle is fixed in a notch of the vertical keel, and the rear part of the connecting buckle extends backwards through two curling edges of the vertical keel to the notch of the transverse keel, and the connecting buckle is fixed to the transverse keel. The present invention realizes reliable connection between the transverse and vertical keels without setting a mounting component on the outer side of the keel flange through the setting of the connecting buckle, and effectively solves the problem of surface flatness of the keel and the outer covering plate; the connecting buckle can be inserted into the vertical keel and the transverse keel to realize the vertical splicing of the light steel keel, and the structure is simple and the installation is convenient; a C-shaped light steel keel bent plate is set inside the connecting buckle, which increases the vertical stiffness of the connecting buckle and improves the bearing capacity of the connecting structure.