39results about How to "Reduce welding man-hours" patented technology

The invention discloses a welding technology of submerged-arc welding of an X-shaped groove of a medium plate, which adopts the following technological steps: (1) when the front surface is welded: the welding current is 450 to 480A; the welding voltage is 25 to 26V; the welding speed is 54 to 58cm / min; and the rod extends by 30 to 35cm; (2) and when the back surface is welded: the welding currentis 600 to 640A; the welding voltage is 30 to 32V; the welding speed is 44 to 47cm / min; and the rod extends by 35 to 40cm. The welding technology has the advantages that the submerged-arc welding is directly adopted for priming; the back chipping is not required on the back surface of a welding seam; the appropriate welding current and voltage is selected and the welding speed is reasonably matched; the problem on the complicated welding method in the prior art is solved; the qualification rate of the welding seam flaw detection is simultaneously guaranteed; the working time of the welding is reduced; and the welding material is saved.

The invention provides a base station antenna and a radiation unit thereof. The radiation unit comprises a dipole, a balun supporting the dipole, and a feeding pack for feeding the dipole. The balun comprises a pair of balun arms which are oppositely arranged, at least one balun arm being arranged in a hollow mode; the feed part comprises a feed conductor and an insulating medium, wherein the feedconductor is arranged in the hollow balun arm in a penetrating mode and connected with one radiation arm supported by the other balun arm; and the insulating medium is filled between the feed conductor and the inner wall of the balun arm and enables the feed conductor to be fastened in the balun arm. A feed part composed of a feed conductor and an insulating medium is arranged in an inner cavityof a hollow balun arm; and the feeding part and the balun arm form a structure similar to a coaxial cable, so that coaxial cable feeding is not needed, welding is not needed, welding time is saved, unstable factors of electrical performance caused by welding are reduced, and meanwhile, cost can be reduced due to the fact that the coaxial cable is not used.

The invention discloses a vertical column welding method for a heavy and large Q420B steel building steel structure. The method comprises the steps of manufacturing a web welding part and a wing flange plate welding part; forming a grooving opening in a weld joint; dehumidifying the web welding part and the wing flange plate welding part; performing full penetration welding to abut and weld the web welding part to obtain a web; performing full penetration welding to abut and weld the wing flange plate welding part to obtain a wing edge plate; performing local penetration welding for a T joint for combining the web and the wing edge plate; performing temperature maintenance and slow cooling treatment for the weld joint. According to the method, the automatic submerged arc welding multi-layer multi-weld process is utilized, so that the automation degree of welding is high; extremely less cold cracks occur in the weld joint structure, and thus the welding quality is high; the labor intensity in welding process is reduced, little welding is performed, so that the welding hours can be greatly reduced; the demand of construction of the heavy and large building steel structure can be comprehensively met by the welding process.

The invention discloses a ship railing and antenna base integrated ship.The ship comprises ship railings and an antenna base.Each ship railing comprises a high rod, a middle rod and a low rod in the transverse direction, wherein the high rod, the middle rod and the low rod are arranged sequentially in parallel at intervals.The antenna base comprises a hollow antenna pillar used for penetration of a cable.The ship is characterized in that at least two sets of the ship railings are symmetrically arranged on the two sides of the antenna pillar respectively and fixedly connected with the antenna pillar; the bottom of the antenna pillar is fixedly connected to a deck of the ship.By the adoption of the ship railing and antenna base integrated ship, a hull is low in total weight, few welding spots exist, the construction period is short, the strength is high, vibration is small, and the antenna base is attractive.

The invention discloses a flange plate and web welding method for a heavy derrick Q390D steel crane beam. The method comprises the six steps of manufacturing web welding parts and flange plate welding parts with butt welding grooves, dehumidifying the web welding parts and the flange plate welding parts, welding the web welding parts in a butting and full penetration mode to form a web, welding the flange plate welding parts in a butting and full penetration mode to form a flange plate, performing heat preservation and slow cooling on a web sealing joint an a flange plate sealing joint, combing and welding the web and the flange plate in a T shape in a full penetration mode, and performing heat preservation and slow cooling on a crane beam welding joint. In the process of manufacturing the web or the flange plate, the web welding parts and the flange plate welding parts are not preheated before welding; in the crane beam manufacturing process, the web and the flange plate are not preheated before welding. According to the flange plate and web welding method, the automatic submerged arc welding multi-layer and multi-pass welding technology is adopted, the welding automation degree is high, few cold cracks exist in a welding joint structure, the welding quality is high, the labor intensity of welding work is low, the welding cost is low, and welding time is greatly shortened.

The invention relates to a method of using a robot for automatic welding of forged coupler yokes. The welding method includes the steps: (1) forming a shape of an X-shaped weld groove, arranging a water cooling pad at the lower end of the X-shaped weld groove after a weld part is fixed, flushing the water cooling pad with the center of the groove, fixing the water cooling pad to the groove, and then starting a cooling water circulation device arranged in the water cooling pad; (2) in a protective atmosphere, instructing a welding robot to perform four-gate welding at the upper end of the weld groove; (3) taking off the water cooling pad, and instructing the welding robot to perform four-gate welding at the lower end of the weld groove in the protective atmosphere. The method of using the robot for automatic welding of the forged coupler yokes has the advantages that labor intensity is remarkably relieved, welding labor hours are reduced, back gouging is not needed, weld testing acceptability is guaranteed, and welding materials are saved.

The invention discloses a zinc-air battery pack capable of being assembled conveniently. Compared with the prior art, the zinc-air battery pack overcomes the defects that the battery replacement speed is low and the battery replacement is inconvenient. The zinc-air battery pack disclosed by the invention comprises an A-type battery (10), a B-type battery (11) and a current collector (3), wherein the A-type battery (10) is formed by putting an air pole (5) on the upper part of a battery jar (2) flatwise and spreading calamine cream (1) on the air pole through a diaphragm (4); the lower part of the current collector (3) is provided with a copper claw (8); the B-type battery (11) is formed by connecting the lower part of the A-type battery (10) with the current collector (3) by using a double-pole connector (9); the B-type battery (11) is installed on the calamine cream (1) of the A-type battery (10) through the copper claw (8); and the current collector (3) is installed on the calamine cream (1) of the B-type battery through the copper claw (8). According to the invention, the replacement speed of a zinc-air battery is increased, and the problem of reduction of battery efficiency caused when the welding is poor is solved.

The invention discloses a flange plate welding method for a heavy derrick Q390D steel crane beam. A Q390D steel plate with the thickness of 50-60 mm is cut to be flange plate welding parts for H-shaped steel, and then the flange plate welding parts are welded in a butting and full penetration mode to form a flange plate. The method comprises the five steps of manufacturing flange plate welding parts, forming grooves in a welding connector, dehumidifying the flange plate welding parts, welding the flange plate welding parts in the butting and full penetration mode to form the flange plate, and performing heat preservation and slow cooling on a welding joint. According to the flange plate welding method, no preheating working procedure performed before welding or heat preservation working procedure performed after welding is provided, the automatic submerged arc welding multi-layer and multi-pass welding technology is adopted, the welding automation degree is high, few cold cracks exist in a welding joint structure, the welding quality is high, the labor intensity of welding work is low, the welding cost is low, and welding time is greatly shortened, so that the welding technology meets the requirement for the heavy level better on the whole, particularly the heavy derrick crane beam flange plate welding requirement.

The invention discloses a special circular seam hardfacing machine. The special circular seam hardfacing machine comprises a platform, a control cabinet, a main shaft motor, a three-jaw head frame, a three-jaw tail frame, a first linear guide rail, a second linear guide rail and a welding device. The main shaft motor is installed in front of the right side of the platform. The three-jaw head frame is installed on the part, on the left side of the main shaft motor, of the platform. The first linear guide rail is installed on the part, on the left side of the three-jaw head frame, of the platform. The second linear guide rail is installed on the part, behind the first linear guide rail, of the platform. The welding device comprises a left-right moving beam, an up-down moving stand column, adjusting components and a welding gun. The welding gun is installed on the up-down moving stand column through the adjusting components. The adjusting components include a welding gun lifting motor, a welding gun cross-shaped fine adjusting mechanism, a welding gun clamping mechanism and a support. According to the special circular seam hardfacing machine, the welding speed can be increased by at least two times, the welding time is shortened, the productivity is increased, and the technical stability is improved; the welding quality is stable, and no defects such as welding gas holes and welding slag exist; a machine tool is of a building block combined type structure, the automation degree is high, and universality is high.

The application discloses a COB module and a manufacturing method thereof. The manufacturing method includes: dispensing glue on the bottom shell; assembling a plurality of COB lamp panels with the glued bottom shell; The COB lamp panel and the bottom shell that has been glued are arranged in a closed space; the closed space is vacuumized to press the bottom shell and a plurality of the COB lamp panels into shape. In this application, glue is used to connect the COB lamp board and the bottom shell, which can ensure the flatness of the light-emitting surface of the COB lamp board and the flatness between the COB modules, and avoid the inclination angle of the COB module, thereby avoiding Bright and dark lines improve the uniformity of the display. On the other hand, the screw fixing method is canceled, and there is no need to weld copper pillars on the COB light board, which reduces welding hours and improves production efficiency.