278results about How to "Guaranteed welding effect" patented technology

The invention relates to the technical field of welding equipment, and particularly discloses steel reinforcement framework welding equipment which comprises a machine body, a positioning mechanism, a welding mechanism and two clamping mechanisms are arranged on the machine body, and the two clamping mechanisms are used for clamping two steel reinforcements and driving the steel reinforcements to ascend and descend relative to the machine body; the positioning mechanism comprises a driving assembly and two positioning pieces, the two positioning pieces are arranged in parallel, the driving assembly drives the two positioning pieces to synchronously get close to or get away from each other, fixing parts are arranged on the positioning pieces and used for movably abutting against the lap joint sections of the reinforcing steel bars, and the driving assembly is rotationally matched with the machine body through elastic pieces; and the welding mechanism is installed on any positioning piece, the welding mechanism comprises a support, a moving assembly and two welding pieces, the two welding pieces are installed on the support, the moving assembly drives the support to be in sliding fit with the positioning pieces, and the welding equipment improves the efficiency and the welding effect of lap welding of the reinforcing steel bars.

The invention relates to the technical field of valve shell assembling and welding, in particular to a valve shell assembling and welding device which comprises a base and further comprises a moving mechanism, a positioning mechanism, a welding mechanism and two side plates. The positioning mechanism comprises two moving rings, two adjusting assemblies, two clamping assemblies, a plurality of sliding grooves, a plurality of sliding blocks, a plurality of abutting rods and a plurality of L-shaped positioning blocks. The welding mechanism comprises a driving assembly, two welding heads and two rotating assemblies. Two pipe openings of a valve can be positioned through the multiple abutting blocks on the two sides, a flange plate can be positioned through the multiple L-shaped positioning blocks on the two sides, and meanwhile due to the fact that the abutting blocks and the L-shaped positioning blocks on the same side are concentric, the positioned pipe openings of the valve and the flange plate can be concentric; it can be effectively guaranteed that the flange plate is accurately aligned with the pipe opening, the welding effect and firmness are guaranteed, and the phenomenon of virtual connection and virtual welding is avoided.

The invention relates to a copper-steel composite plate and a preparation method thereof, the copper-steel composite plate comprises an outer layer carbon steel plate and a core layer oxygen-free pure copper plate, and at least one surface of the oxygen-free pure copper plate integrally and continuously covers the carbon steel plate; the carbon steel plate comprises the following chemical components: 0.05%-0.20% of C, 0.1%-0.55% of Si, 0.5%-2.0% of Mn, less than or equal to 1.0% of Cr, less than or equal to 1.5% of Ni, less than or equal to 1.0% of Cu and the balance of Fe. The thickness of the copper-steel composite plate is 30-120 mm, and the ratio of the thickness of the oxygen-free pure copper plate to the thickness of the copper-steel composite plate is 0.4-0.8. According to the copper-steel composite plate, the yield strength is larger than or equal to 209 MPa, the tensile strength is larger than or equal to 359 MPa, the shear strength is larger than or equal to 213 MPa, and the copper-steel composite plate has good structural strength and interface bonding strength.

The invention relates to the technical field of radiator machining, in particular to an aluminum metal radiator machining device and a machining process thereof. The aluminum metal radiator machining device comprises a bottom frame, an adjusting mechanism is arranged on the surface of the bottom frame and comprises a first guide rail, and the first guide rail is fixedly connected to the surface of the bottom frame; the surface of the first guide rail is slidably connected with a first sliding block, the surface of the first sliding block is fixedly connected with a moving table, the surface of the bottom frame is fixedly connected with a fixing plate, and the surface of the fixing plate is fixedly connected with a first motor. According to the cooling fin welding device, cooling fins can be arranged on the placing plate in advance in the welding process, then the cooling fins are clamped and positioned through the adjusting mechanism and the clamping mechanism, the positioning efficiency of the cooling fins is improved, the welding machining time of the cooling fins is greatly shortened, and the welding machining efficiency of the cooling fins is improved; therefore, the machining efficiency of the aluminum metal radiator is improved, and the production yield of the aluminum metal radiator is guaranteed.

The utility model relates to the technical field of argon arc welding clamps, in particular to an angle-adjustable argon arc welding clamp for an air inlet cover, which comprises a cylindrical base. Two annular sliding grooves are symmetrically formed in the side curved surface of the cylindrical base up and down, a first torsion assembly and a second torsion assembly are installed on the outer side walls of the two sliding rings through supporting plates correspondingly, the acting end of a plug pin assembly can be plugged into a corresponding pin hole, and the first torsion assembly comprises a first electric telescopic rod; a first swing locking assembly is installed on the first damping rotating shaft, a second swing locking assembly is installed on the second electric telescopic rod, and the swing angle between the second electric telescopic rod and the first electric telescopic rod is adjusted through the first swing locking assembly. And a second swing locking assembly can adjust the swing angle between the clamping assembly and a second electric telescopic rod, the angle adjusting effect is achieved through cooperation, and the argon arc welding clamp can freely move in a certain range space and is more convenient to use compared with a traditional argon arc welding clamp.

The invention discloses hardware pipe welding equipment with high safety performance in the technical field of hardware pipe welding, which comprises a supporting unit comprising a base positioned at the bottom, two groups of supporting parts symmetrically arranged on two sides above the base, and threaded shafts correspondingly inserted in the center positions of the supporting parts in the vertical direction, the first driving motor is arranged on one side of the lower portion of the base, the workbench is arranged above the base in parallel, and the upper ends of the two sets of supporting components both penetrate through the workbench and extend upwards. A to-be-welded hardware pipe is stably clamped and fixed through the clamping unit, potential safety hazards existing in a hand holding mode are avoided, the safety performance of the device is improved, the clamping range can be correspondingly adjusted according to the use requirement, and the practicability is high. And the device can meet the working requirement for limiting and clamping hardware pipes of different sizes and specifications, the application range of the device is widened, and the use flexibility of the device is remarkably improved.

The invention relates to the technical field of vibrating screen mesh welding, and discloses a welding device for vibrating screen mesh machining, which comprises a rack, and a circular metal welding disc is arranged on the rack; the vertical rod is fixed on the top surface of the rack; the lifting seat is arranged on the vertical rod in a lifting manner; the mounting seat is fixed at one end, far away from the vertical rod, of the lifting seat; the rolling welding structure is arranged on the mounting seat, and the rolling welding structure comprises a roll welding module; and the flattening structure is arranged on the mounting seat, and the flattening structure is arranged right opposite to the metal welding disc. By pressing the middle of the screen through the flattening plate and comprehensively flattening the outer edge of the screen through the four flattening plates distributed in the circumferential direction in an array mode, the overall flatness of the screen in the welding process is further guaranteed, and reliable quality guarantee is provided for subsequent use of the screen.

The present invention relates to the field of disposable sanitary product production equipment, and specifically to a pull-up pants ultrasonic flip welding device, comprising a frame, a rotating shaft and an ultrasonic welding mechanism are mounted on the frame, the ultrasonic welding mechanism comprises a welding machine body and a pressing plate, the materials to be welded are arranged and transported in an assembly line, when the pressing plate contacts the welding machine body, the materials to be welded are sandwiched between the pressing plate and the welding machine body, the frame is provided with a flip mechanism for driving the pressing plate to approach / move away from the welding machine body, the flip mechanism comprises a groove wheel, a rotating frame, a guide rail, a slider and a connecting rod mechanism, the circumferential outer surface of the groove wheel is provided with a guide groove, the lower end of the slider is provided with a guide rod embedded in the guide groove so that the slider can be displaced as the position of the guide rod changes. The present invention is applied to the welding process of waist circumference and other positions in the production of sanitary products.

The invention discloses a pipeline installation welding machining device, and relates to the field of pipeline welding installation, the pipeline installation welding machining device comprises a pipeline fixing assembly and a welding assembly, the pipeline fixing assembly comprises a fixing base and two second movable hoops, the welding assembly is installed in the middle of the pipeline fixing assembly, and the welding assembly comprises a lower supporting ring frame and an upper supporting ring frame; welding seats capable of rotating around the central inner walls of the lower supporting ring frame and the upper supporting ring frame are installed on the inner sides of the lower supporting ring frame and the upper supporting ring frame, and welding heads are installed on the welding seats. When two to-be-welded pipelines are welded, the stability of the to-be-welded pipelines can be guaranteed, the distance between the welding head and the to-be-welded pipelines can be always fixed during welding, the welding effect of all positions of the pipelines is consistent and stable, the connecting strength of the pipelines is improved, and meanwhile through the structural design of the welding assembly, the welding efficiency is improved. And the welding assembly is stable and smooth in the pipeline welding process, and operation is convenient.

The anti-deviation iron tower welding machine comprises a base and a welding table, the welding table is located in the middle of the top end of the base, a containing groove is formed in the welding table, and a bottom plate is arranged in the containing groove. In the using process, the motor is started to drive the connecting base and the cross-shaped linkage rotating frame to rotate, and the movable blocks on the top of the movable rod are in a movable connection state in the movable grooves, so that when the cross-shaped linkage rotating frame is located, the multiple sets of movable blocks drive the movable rod to pull inwards under the action of the movable grooves; in other words, the moving plate connected with the other end of the moving rod and the fixing base synchronously move inwards, so that multi-position linkage inward moving operation can be achieved, multiple sets of reinforcing plates arranged in the fixing base are attached to the outer wall of the bottom plate at the same time, labor force and time for sequentially supporting and aligning the reinforcing plates manually for welding are reduced, and the welding efficiency is improved. And the stability during contact is enhanced while the working efficiency is improved.

The invention relates to the technical field of guard plate welding, and discloses a corrugated guard plate welding tool for an industrial guardrail, the corrugated guard plate welding tool comprises a bottom plate, a first corrugated plate and a second corrugated plate, the upper end of the bottom plate is movably connected with a first supporting plate, one side of the first supporting plate is fixedly connected with a second supporting plate, and the upper end of the second supporting plate is fixedly connected with a third corrugated baffle; the first corrugated plate is movably connected between the third corrugated baffle and the first supporting plate, a fixing assembly is arranged at the upper end of the second supporting plate, a welding mechanism is arranged on one side of the fixing assembly, two sets of symmetrical fixing plates are fixedly connected to the upper end of the bottom plate, and a pushing mechanism is jointly arranged between the two sets of fixing plates. The corrugated plate welding device has the advantages that the movable rod can drive the welding gun to cater to fluctuation of corrugated plates to conduct precise welding, the corrugated plates are adaptively fixed according to different lengths of the corrugated plates, meanwhile, the position of the welding gun can be adjusted, and the welding effect and quality are effectively improved.

The utility model discloses a robot welding clamp which comprises a fixing frame, two end clamping devices, a middle clamping mechanism and a connecting base, the fixing frame is in a long strip shape, and the two end clamping devices are sequentially arranged on the fixing frame in the length direction of the fixing frame; the middle clamping mechanism is installed on the fixing frame and located between the two end clamping devices. Connecting seats are arranged at the two ends of the fixing frame correspondingly and used for being connected with a positioner. The welding fixture has the technical effects that the end part clamping device and the middle part clamping mechanism are matched for use, so that a to-be-welded fixture can be stably clamped; the connecting base is arranged and can be connected with a positioner for use, so that the positioner is used for driving the whole clamp to rotate along the axis, a welding gun is always kept in a good welding posture in the welding process, the all-directional welding effect is guaranteed, welding operation of all parts can be completed at a time, repair welding is not needed, automatic operation can be achieved, and the welding efficiency is higher.

The invention relates to the technical field of welding equipment for steel structure factory buildings, in particular to H-shaped steel welding equipment for a steel structure factory building. Comprising a welding device body and an operation table, the operation table is provided with a first supporting part and a second supporting part, the first supporting part is used for supporting an H-shaped steel body, and the second supporting part is used for fixedly installing a lining plate; the first supporting part comprises a lifting supporting assembly and a supporting bed arranged on the lifting supporting assembly, the supporting bed can support the front end of the H-shaped steel body to incline towards the second supporting part, and the second supporting part can drive the mounting lining plate and the H-shaped steel body to move and rotate. The H-shaped steel main body and the mounting lining plate are supported through the first supporting part and the second supporting part correspondingly, the H-shaped steel main body and the mounting lining plate can be in butt joint rapidly, the H-shaped steel main body can be kept in an inclined state for welding by adjusting the first supporting part, operation of welding wires and the welding device main body is facilitated, and the welding effect is guaranteed.

The invention relates to the technical field of automobile part machining, and discloses spot welding equipment for automobile part machining, the equipment is mainly composed of a spot welding machine and a spot welding auxiliary structure, the spot welding machine comprises a transformer, electrodes, a controller, a machine body and other conventional components, and the spot welding auxiliary structure is arranged between the upper electrode and the lower electrode of the spot welding machine and fixed to one side of the lower electrode; core components of the device comprise a lifting frame, a double-sided toothed plate, a spring rod, a push block, an auxiliary pressing rod, a reset rod, a sliding box, a ratchet gear, a reciprocating lead screw, a reciprocating sliding seat, an exhaust pipe, a click air pipe, a cleaning air pipe, a telescopic pipe, a cleaning box, an impeller, a cleaning piece and the like. Through the arrangement of the spot welding auxiliary structure, the spot welding quality and efficiency of the automobile parts are remarkably improved, the spot welding auxiliary structure plays an important role in promoting the part machining link of the automobile manufacturing industry, has remarkable advantages in the aspects of guaranteeing the product quality and improving the production benefits, and provides a reliable equipment solution for the automobile part welding process.

The utility model discloses a production device of a layered silver-based metal oxide contact material, which comprises a discharging mechanism, an atmosphere protection resistance furnace, a rolling mill, an atmosphere protection cooling device, a limiting device and a winding machine, and the atmosphere protection resistance furnace is divided into a resistance furnace middle section, a resistance furnace front section and a resistance furnace rear section. The resistance furnace middle section is connected with an external non-reducing and non-combustible gas conveying device, the resistance furnace front section and the resistance furnace rear section are both connected with the external non-reducing and non-combustible gas conveying device, and the atmosphere protection cooling device is divided into a cooling device middle section, a cooling device front section and a cooling device rear section. The cooling device middle section is connected with an external non-reducing combustible gas conveying device, and the cooling device front section and the cooling device rear section are both connected with the external non-reducing combustible gas conveying device. The layered silver-based metal oxide contact material which is firm in composite interface bonding, low in cost and stable and reliable in quality can be prepared.

The present invention relates to the field of welding technology, and specifically to a tin ball separation device for soft soldering. It comprises a separation mechanism mounting plate, a lower cover plate is fixedly and sealedly mounted on the bottom surface of the separation mechanism mounting plate, a turntable is rotatably connected between the lower cover plate and the separation mechanism mounting plate, a tin ball conveying hole is provided on the turntable, a ball storage tank is provided on the separation mechanism mounting plate corresponding to the tin ball conveying hole, tin balls are stored inside the ball storage tank, a tin ball drop hole is provided on the lower cover plate corresponding to the tin ball conveying hole, a drive assembly is connected to the turntable transmission, and an adsorption mechanism is provided on the turntable corresponding to the tin ball drop hole. In the present application, when the turntable transfers the tin balls from the ball storage tank to the tin ball drop hole one by one through the tin ball conveying hole, the adsorption mechanism will adsorb the tin balls, so as to prevent the tin balls from rubbing and wearing against the side walls of the lower cover plate and the tin ball conveying hole, thereby facilitating the efficiency and effect of soft soldering.

The invention provides a welding device and method for saxophone machining, and relates to the technical field of saxophone machining. The welding device comprises a driving mechanism, a laser welding mechanism, a supporting mechanism, a smoke discharging mechanism, a control mechanism and a protection mechanism; the laser welding mechanism is mounted on the driving mechanism; the supporting mechanism is installed on the top of the driving mechanism and used for installing a welding tool. The smoke discharging mechanism is installed on the rear side of the driving mechanism and used for sucking smoke generated during welding. The control mechanism is mounted on the driving mechanism; the protection mechanism is mounted on the front side of the driving mechanism; the distance between the laser welding head and the saxophone is automatically adjusted, it is guaranteed that the saxophone is located at the accurate focal length when different positions of the saxophone are welded, and the welding quality of the saxophone is improved; the saxophone laser welding device solves the problems that due to the fact that a laser welding head is usually fixedly installed, when different positions of a saxophone are welded, the focal length is prone to being inaccurate, and the welding quality of the saxophone is reduced.

The invention discloses a busbar welding auxiliary device which effectively achieves the purpose of fixing a busbar terminal and a stator copper wire terminal, the busbar welding auxiliary device comprises a tool base, a clamping assembly and a wire abutting assembly, the tool base comprises a supporting ring and a supporting base, the clamping assembly comprises a first clamping disc and a second clamping disc, and the wire abutting assembly comprises a first clamping disc and a second clamping disc; a first wire groove and a second wire groove are formed in the first clamping disc and the second clamping disc in a circumferential array mode respectively, the wire abutting assembly comprises a fixing block fixedly connected with the lower side wall of the second clamping disc, and an abutting rod is arranged in the middle of each fixing block. By means of the device, the better pressing effect is achieved, the welding effect and quality are guaranteed, a copper wire can be away from a busbar during welding, workers can conduct welding conveniently, the pre-clamping stability is improved, and overall installation of the device is facilitated.

The utility model provides a corrugated pipe processing blank pressing welding device which comprises a workbench, supporting legs, an L-shaped baffle and a clamping assembly, and the top ends of the supporting legs are fixedly connected with the bottom of the workbench; the surface of the L-shaped baffle is fixedly connected with one side of the workbench. The clamping assembly comprises an annular placing frame; the bottom of the annular placing frame is slidably connected with the top of the workbench. The surface of the annular placing frame is in threaded connection with an adjusting screw rod; by arranging the clamping assembly, during welding, the corrugated pipe is placed on the annular placing frame, then the annular placing frame slides, the position of the annular placing frame is adjusted, and therefore the annular placing frame moves to the gravity center of the corrugated pipe, the corrugated pipe can be stably placed on the annular placing frame, and then an adjusting lead screw is rotated; the adjusting lead screw moves on the annular placing frame after rotating, then the arc-shaped clamping blocks are driven to move and be clamped on the surface of the corrugated pipe, corrugated pipes of different sizes can be clamped, the stability during welding is guaranteed, and the welding effect is guaranteed.

The invention relates to the technical field of flat welding flanges, in particular to a plate type flat welding flange which comprises a flange plate, an inner hole used for being connected with a pipeline in an inserted mode is formed in the flange plate, a plurality of bolt holes used for connection are evenly distributed in the circumference of the flange plate, and a positioning assembly is further arranged on the flange plate and comprises a plurality of positioning grooves formed in the flange plate. The multiple positioning grooves are evenly distributed in the flange plate in the circumferential direction, positioning blocks are horizontally installed in the positioning grooves in a sliding mode, a positioning spring is further horizontally arranged in each positioning groove, and the positioning springs are used for keeping pushing the positioning blocks towards the circle center direction of the inner hole. Through the positioning spring and the positioning block of the positioning assembly, the pipeline is automatically pushed to the center of the flange plate after being inserted into the inner hole of the flange plate, so that the axis of the pipeline coincides with the axis of the flange plate, and the problem that the axis of the pipeline is not coaxial with the axis of the flange plate when the pipeline is smaller than the inner hole of the flange plate is solved; and the welding effect of the flange plate and the pipeline is improved.

The invention discloses steel for a low-cost efficient gas shielded welding wire and a production method of the steel. The steel comprises the following chemical components in percentage by mass: 0.03-0.10% of C, 0.80-1.60% of Mn, less than or equal to 0.020% of S, less than or equal to 0.020% of P, 0.50-1.00% of Si, less than or equal to 0.010% of V, Ti, Nb and Alt, less than or equal to 0.030% of Cr, Ni and Cu, less than or equal to 0.0010% of Ca, less than or equal to 0.0045% of N and the balance of Fe and inevitable impurities. The production method comprises the steps of converter smelting, LF external refining, square billet continuous casting, straight roller way conveying, hot rolling spinning and air cooling packaging. The crystallizer adopts electric stirring and final stirring, the central shrinkage cavity and central segregation of a continuous casting billet are eliminated, a wire product with the specification of phi 5.0-7.0 mm is produced by adopting a heating-free direct rolling technology, and the steel for the gas shield welding wire is efficiently produced at low cost.

The invention provides an air conditioner compressor exhaust pipe automatic welding device, and belongs to the technical field of air conditioner compressor exhaust pipes. The air conditioner compressor exhaust pipe automatic welding device comprises a welding table, two sliding grooves are formed in the welding table, and two pipeline clamping mechanisms are installed on the welding table; the two pipeline clamping mechanisms are each provided with a bidirectional lead screw, a first motor, two nut bases, a fixed pulley, a first support, a first air cylinder, a driving pulley and a driving motor. And a lifting mechanism is installed on the other side of the welding table and comprises a lifting plate, and a welding gun is installed at the center of the bottom of the lifting plate. Air conditioner compressor exhaust pipes with different diameters and lengths can be effectively clamped through the pipeline clamping mechanism and the position adjusting mechanism, meanwhile, due to the fact that the pipeline clamping mechanism clamps the exhaust pipe in a sliding face mode, a driving pulley can be matched with a fixed pulley through a driving motor to achieve rotation of the exhaust pipe, and therefore welding and rotation are conducted at the same time; the welding effect of the air conditioner compressor exhaust pipe is guaranteed, and welding efficiency is improved.

The invention discloses a mechanical argon arc welding machine for welding a boiler, and belongs to the field of argon arc welding machines, the mechanical argon arc welding machine comprises a welding main body and a positioning clamp, the positioning clamp is provided with a clamping and positioning system, the clamping and positioning system is provided with a rotating system, the rotating system is fixedly provided with a fixing cylinder, and a welding assembly is arranged in the fixing cylinder; an air conveying assembly is arranged in the fixing cylinder, an adjusting assembly is arranged in the fixing cylinder, an air suction assembly is arranged on the fixing cylinder, and the air conveying assembly comprises a first annular sliding groove and a second annular sliding groove which are formed in the fixing cylinder. Through cooperation of the transmission component and the air inducing component, the supporting disc is driven to eject stable vortex-shaped argon flow, the arc protection stability and uniformity are effectively improved, meanwhile, the arc protection range can be effectively expanded, and meanwhile it can be further ensured that the argon flow of the device is large or small through the adjusting assembly and the transmission component. And stable vortex-shaped argon flow can be sprayed out.

The utility model provides a steel plate welding straightening device, the device comprises: a base, a welding butt joint unit and a straightening unit, the welding butt joint unit is arranged on the base and comprises a butt joint table and two support frames, the top of the butt joint table is provided with a welding groove, the two support frames are arranged on the butt joint table and respectively located at two sides of the welding groove, and the straightening unit is arranged on the butt joint table. A pressing plate is installed in the supporting frame. The straightening unit comprises a plurality of straightening assemblies distributed on the two sides of the welding butt joint unit, each straightening assembly comprises a fixing frame, a first conveying roller and a second conveying roller, the first conveying rollers and the second conveying rollers are arranged in the fixing frames, the fixing frames are arranged on the base, and the first conveying rollers are located below the second conveying rollers. According to the steel plate welding straightening device, the pressing plate and the limiting plate are matched with each other, adaptive adjustment and limiting are carried out according to the width of a steel plate, the steel plate is extruded and fixed, the position stability during butt welding of the steel plate is guaranteed, and the welding effect is guaranteed.

The utility model discloses a handheld laser welding gun auxiliary welding jig which comprises a connecting frame, a first positioning attaching block, a second positioning attaching block and a welding gun head clamping block, the first positioning attaching block and the second positioning attaching block are both hinged to the connecting frame, and a welding gun head is movably connected between the welding gun head clamping block and the connecting frame. And the welding gun head clamping block is movably connected with the connecting frame through a limiting shaft. The first positioning attaching block and the second positioning attaching block are arranged to be the right-angle sides, that is, a welding piece can be placed between the areas of the first positioning attaching block and the second positioning attaching block, then the welding gun head is aligned with a welding seam of the welding piece for welding, and then stable and high-quality welding operation of the welding seam can be achieved by moving the welding gun head along the plane of the welding piece. The problem that the laser armored cable brings a large load to the hand of a user during welding is effectively solved. The welding effect of equipment is effectively guaranteed, and the welding track is correct and continuous.

The invention relates to the technical field of waterproof materials for railway tunnels, in particular to a puncture-resistant and tear-resistant EVA waterproof board and a preparation method thereof, and the EVA waterproof board is prepared by uniformly mixing various raw materials and then using a counter-rotating twin-screw extruder and a cooling calendering roller; the EVA waterproof board is prepared from the following raw materials in parts by weight: 15 to 35 parts of ethylene-vinyl acetate copolymer, 20 to 40 parts of ultra-high molecular weight polyethylene, 20 to 30 parts of modified polypropylene, 10 to 25 parts of ethylene-octylene copolymer, 3 to 5 parts of silicon dioxide particles, 3 to 5 parts of compatilizer and 3 to 5 parts of antioxidant master batch. The EVA waterproof board has excellent puncture resistance and tear resistance.

The utility model relates to the technical field of metal goods shelf welding and discloses a fixing clamp for metal goods shelf welding, which comprises a machining table, a U-shaped plate is arranged on the left side of the upper end of the machining table, a U-shaped plate is arranged in the middle of the bottom end of the machining table, and a fixing mechanism is arranged on the right side of the upper end of the machining table and used for fixing L-shaped steel in a matched mode. Positioning mechanisms are arranged at the two ends of the inner side of the U-shaped plate and used for positioning the L-shaped steel placed on the machining table, a driven bevel gear is arranged at one end of each positioning mechanism, a driving mechanism is arranged on the U-shaped plate and matched with the driven bevel gears to drive the two positioning mechanisms to work synchronously, and the fixing mechanism comprises an electric push rod and a push plate. When the L-shaped steel welding fixture is used, two pieces of L-shaped steel to be welded are conveniently positioned, so that the welding effect between the two pieces of L-shaped steel is ensured, a plurality of pieces of L-shaped steel can be fixed at a time, and the welding efficiency of the L-shaped steel is greatly improved.

The utility model relates to a welding device and glass processing equipment, the welding device comprises a welding cavity used for accommodating a to-be-welded piece, the inner wall of the welding cavity is attached to the outer wall of the to-be-welded piece, and the to-be-welded piece is provided with an opening communicated with the interior of the to-be-welded piece; the inflation inlet is communicated with the welding cavity and faces the opening; and the extraction opening is communicated with the welding cavity and is positioned at the opening. According to the welding device, when the to-be-welded part is welded, the inflation port inflates the interior of the to-be-welded part, and the exhaust port exhausts air between the to-be-welded part and the inner wall of the welding cavity, so that even if the to-be-welded part is deformed during welding, the inner wall of the welding cavity can be attached to the outer wall of the to-be-welded part, and the to-be-welded part can be welded. Therefore, the welding effect is guaranteed, and the size precision change of the to-be-welded part can be reduced at the same time.

The utility model provides a support hook welding tool which comprises a mounting frame, a sliding seat, a driving piece, a handle assembly and a clamping assembly, the sliding seat is movably arranged on the upper end face of the mounting frame, the clamping assembly is arranged on the sliding seat and located on one side of the mounting frame, and the driving piece is in transmission connection with the clamping assembly and used for driving the clamping assembly to clamp a hook. The handle assembly is arranged on one side of the mounting frame, one end of the handle assembly is connected with the sliding seat, the handle assembly has a locking mode and an unlocking mode, when the handle assembly is in the unlocking mode, the handle assembly is pulled by using a preset force to drive the sliding seat to telescopically move on the mounting frame, and when the handle is in the locking mode, the handle assembly is pulled by using a preset force to drive the sliding seat to telescopically move on the mounting frame. And the sliding seat is fixed on the mounting frame, so that the hook is clamped through the clamping assembly, and the clamping assembly and the hook are driven to move through the handle assembly, so that the hook is in contact with the exhaust pipe, a user can conveniently weld the hook on the exhaust pipe, the operation is convenient, and the welding effect can be improved.

The invention relates to the technical field of chip processing, and particularly discloses a chip welding processing device, which comprises a machine body, and further comprises a paste outlet assembly arranged on the machine body and used for discharging solder paste; and the paste brushing assembly is arranged on the paste discharging assembly, and the paste brushing assembly is used for brushing the solder paste discharged by the paste discharging assembly. The PCB can be stably clamped through the paste discharging assembly, solder paste can be discharged from the position, needing to be welded, of the PCB, the discharge amount of the solder paste can be adjusted and controlled according to different sizes of chips, it is prevented that much or less solder paste is discharged, the solder paste discharged by the paste discharging assembly can be brushed through the paste brushing assembly, and the solder paste discharging efficiency is improved. Solder paste can be evenly brushed on the welding position of the PCB, and the welding effect of a chip is guaranteed.