164results about How to "Beautiful weld" patented technology

The invention discloses a butt-jointing and welding method of plates. The bases of the grooves of two plates which need to be welded are butt-jointed closely and are fixed in the groove through spot welding. A ceramic pad is stuck at the bottom of the butt-jointing place by an aluminum foil. Two parallel and separated thin welding wires are used to treat welding seam by submerged arc-welding. The butt-jointing and welding method effectively shunts the welding current to the two thin welding wires, not only improves the melting efficiency of the welding wire, but also avoids the excessive concentration of the active force of electric arc, not only has high welding efficiency, but also is easier to achieve a balance state to form the welding seam under the support of surface tension and the ceramic pad.

The invention discloses double-head and double-sided friction stir welding equipment with high efficiency, and a welding method thereof. The equipment comprises a base, upright columns, an upper crossbeam, a lower cross beam, at least one working table, visual sensors and a CNC controller; the upper cross beam is provided with an upper head, and the lower cross beam is provided with a lower head;the upright columns, the upper cross beam and the lower cross beam form a portal frame of an integral structure, and the upper head and the lower head can be moved along an X axis, a Y axis and a Z axis, and rotated along the Z axis through a driving device and a transmission mechanism; the working table is connected with the horizontal plane of the base, and the working table is located betweenthe upper head and the lower head; the working table and the portal frame can be moved relatively for achieving welding, and the visual sensors are installed on the upper head and the lower head, andused for navigation and identification of weld joints; and the CNC controller is used for controlling the portal frame, the upper head, the lower head, the working table and the visual sensors to work.

The invention discloses a rotating shaft welding jig, a rotating shaft welding worktable and an automatic rotating shaft welding system. The rotating shaft welding jig comprises a rotating shaft clamp and a component fixing device, wherein the rotating shaft clamp is used for clamping a rotating shaft, and the component fixing device is used for fixing a rotating shaft component which needs to be welded to the rotating shaft. The rotating shaft clamp comprises a rotating shaft supporting and rotating mechanism and a rotating shaft supporting and clamping mechanism, wherein the rotating shaft supporting and rotating mechanism and the rotating shaft supporting and clamping mechanism are used for clamping the two ends of the rotating shaft respectively. The component fixing device is arranged between the rotating shaft supporting and rotating mechanism and the rotating shaft supporting and clamping mechanism and comprises a rotating shaft component clamping part and a clamping driving part. The rotating shaft component clamping part comprises a plurality of bases which are arranged on a base plate side by side, wherein the bases include at least one fixed locating base and a plurality of sliding bases. The clamping driving part is connected with the rotating shaft component clamping part and can drive the sliding bases to slide towards the locating base so that the adjacent bases can clamp and loosen the rotating shaft component. The rotating shaft welding jig can clamp the rotating shaft and the rotating shaft component at a time.

The invention discloses an automatic traceless fusion welding technology of a thin-wall stainless steel clean pipeline. The technology comprises the following steps of: step 1, treating a welding port: milling pipe end welding surfaces of two welded pipeline segments into planes; step 2: assembling welded junctions; step 3: carrying out point welding; step 4: carrying out fusion welding: carrying out fusion welding on the two pipeline segments by adopting an argon tungsten-arc welding machine, wherein the fusion welding process comprises the following steps of: introducing a protective gas before welding, welding the two welded pipeline segments by adopting the argon tungsten-arc welding machine, and introducing argon continuously during the welding process and introducing a protective gas continuously after welding; and step 5: sealing and protecting after welding. The automatic traceless fusion welding technology of the thin-wall stainless steel clean pipeline provided by the invention is reasonable in design, is simple and convenient to operate, is convenient to achieve, has a good pipeline cleanness control effect, is high in welding quality, and can effectively solve the problems of high labor intensity, low efficiency, high production cost, severe welding junction oxidation, poor formation inside and outside a welding line, difficulty in controlling cleanness in pipelines, poor cleanness control effect and the like in an existing welding method.

The invention discloses a device and a technology of automatic impeller indexing weld, and belongs to the technical field of impeller weld in the fan industry. The device controls walk steps of a splitting motor by setting a splitting procedure of a controller, and can equally divide an impeller at any angle through a decelerating machine. A further improvement is flip type weld, and the flip type weld is characterized by instructing a flipping motor to drive a decelerating mechanism to achieve flipping at any angle by setting a flipping procedure of the controller, and thereby facilitating reinforced welding. The weld technology includes: firstly clamping an impeller rear disc and fastening, and fixing blades for spot welding; then using the device for indexing weld on each blade, and placing an impeller front disc and fastening; afterwards turning over a working table to a target position and then performing indexing weld reinforcing on each blade; and finally turning over the working table to an initial point to finish the weld. The device and the technology can achieve equally dividing the impeller accurately, are simple and convenient to manipulate, and enable the weld to be stable and beautiful.

The invention relates to an energy-saving environment-friendly welding rod belonging to the field of welding materials. The energy-saving environment-friendly welding rod comprises a coating and a welding core. The energy-saving environment-friendly welding rod is characterized in that the coating comprises the following matters in percentage by weight: 35-50 percent of rutile, 7-12 percent of mid-carbon ferromanganese, 4-14 percent of white slime, 6-12 percent of feldspar, 5-10 percent of mica, 7-13 percent of dolomite, 7-9 percent of ilmenite, 1-3 percent of quartz, 2-4 percent of meerschaum and 9-14 percent of attapulgite powder. For selecting raw materials, the rutile is adopted instead of titanium pigment and reduced titanium, which has low energy consumption and low pollution; and the meerschaum is used instead of organic matters of wood flour, cellulose, and the like, which almost does not generate dust when being used, is environment-friendly and does not damage the health of operating staff. The invention is the carbon steel welding rod with the rutile type coating, has the advantages of excellent welding process property, stable electric arc, beautiful welding seams, low splash, little dust and dual purposes of alternating current and direct current, and can carry out all-position welding.

The invention discloses a device used for welding a copper tube and an aluminum tube in refrigeration equipment and a welding method of the device. The device comprises a main device body and a working table, wherein the main device body comprises a main box, an alternating-current power source, a transformer, a high-voltage rectifier, a capacitor set, vacuum switches and a triggering device; the working table comprises a rack and a welding head, the welding head comprises an electric conducting coil and a magnetic flux concentrator, and the electric conduction coil is connected with all the vacuum switches through coaxial cables. The welding method includes the following steps that (1), one end of an outer tube is inserted in the magnetic flux concentrator, and one end of an inner tube is inserted into the magnetic flux concentrator; (2), a pulser is started, when a charging voltage reaches a set value, the system control triggering device turns on a discharging switch, and the outer tube and the inner tube are welded through magnetic force in the magnetic flux concentrator. The device used for welding the copper tube and the aluminum tube in the refrigeration equipment achieves normal-temperature welding, and is more convenient and faster to use, more environmentally friendly and lower in welding cost.

The invention relates to an efficient shape welding machine and a using method thereof. The efficient shape welding machine comprises a working platform, wherein a rotary barrel is arranged on the working platform; a magnet of which the section is circular-arc-shaped is arranged in the rotary barrel, so that the outer circumferential wall of a welded part is fixed on the inner side arc face of the magnet; and a support frame for fixing a welding gun is arranged beside the rotary barrel. The method comprises the following steps of: I, adsorbing a welded part onto the inner circumferential wall of the magnet to realize fixing of the welded part; II, covering a separation blade for matching the separation blade with the magnet to sleeve the outer circumferential wall of the welded part; III, adjusting relative positions of a vertical rod, a first slide block and a swing stem to make a circular tube reach a corresponding position and position the welding gun erected on the circular tube at a welding position; and IV, starting the welding gun and a driving motor, wherein the driving motor is used for driving the rotary barrel to rotate for driving the welded part to rotate, and the welding gun is used for welding the welded part at the welding position through the driving motor, so that welding work of bent parts can be finished conveniently and rapidly.

The invention relates to the technical field of pipe welding machines, in particular to a stainless steel automatic pipe welding machine. The stainless steel automatic pipe welding machine comprises a rack protective cover. A welding gun working device is externally connected with a PLC controller of an electrical control system. The welding gun working device comprises a cross-shaped cantilever sliding platform. One side of the lower end of the cross-shaped cantilever sliding platform is connected with a welding gun and a displacement sensor. The welding gun is located over a transmission mechanism. A tensioning oil cylinder is connected with a hydraulic oil pump. An argon arc welding machine and the hydraulic oil pump are connected with the PLC controller. The PLC controller is connected with a transmission structure operation panel and the displacement sensor. According to the stainless steel automatic pipe welding machine, the distance between the welding gun and a workpiece is perceived through the displacement sensor, the safety of the machine and people is ensured, the manual labor force is relieved greatly, the working efficiency is improved, the effect is better, compared with the prior arts, the characteristics are outstanding, and subsequent promotion is worthy.

The invention discloses a brazing method of a high-volume-fraction silicon carbide particle reinforced aluminum matrix composite material and an aluminum-silicon alloy. The brazing method includes thefollowing steps that S1, the to-be-welded surfaces of the silicon carbide particle reinforced aluminum matrix composite material and the aluminum-silicon alloy are subjected to surface clearing; S2,ceramic powder is prearranged on the to-be-welded surface of the aluminum-silicon alloy after treatment in the S1; S3, a brazing filler metal is placed between the to-be-welded surfaces of the aluminum-silicon alloy and the silicon carbide particle reinforced aluminum matrix composite material to form a to-be-welded part; and S4, under the protective atmosphere, the to-be-welded part is heated up,kept warm and pressurized to 5-20 MPa, and continuous heat preservation and pressure maintaining are conducted, and then the to-be-welded part is furnace-cooled to the room temperature. According tothe brazing method, oxide films on the surfaces of the silicon carbide particle reinforced aluminum matrix composite material and the aluminum-silicon alloy are broken by using the hard ceramic powderto assist the metal brazing filler metal, the brazing filler metal is fully wetted and spreads on the surfaces of the silicon carbide particle reinforced aluminum matrix composite material and the aluminum-silicon alloy, and metallurgical bonding of the connection surface of the silicon carbide particle reinforced aluminum matrix composite material and the aluminum-silicon alloy is induced.

The invention discloses a full-automatic welding method for metal powder-cored wire pipeline girth welding joints. The full-automatic welding method is characterized by comprising the following steps: S1, grooves are machined; S2, pipe openings are pretreated; S3, root welding layer welding, hot welding layer welding, packing layer welding and cover surface welding are performed by adopting metal powder-cored wires, wherein the method M1 for root welding layer welding comprises the step of welding according to root welding layer welding parameters; the method M2 for hot welding layer welding comprises the step of welding according to hot welding layer welding parameters; the method M3 for packing layer welding comprises the step of welding according to packing layer welding parameters; and the method M4 for cover surface welding comprises the step of welding according to cover surface welding parameters. By adopting the full-automatic welding method for metal powder-cored wire pipeline girth welding joints, during welding of pipelines, the detect that side walls are not fused is not easily caused; and the method is high-efficient and environment-friendly.

The invention discloses a butt joint positioning device and a butt joint positioning method of welding surfaces of concrete mold plates, which can perform butt joint positioning for welding surfaces of two to-be-welded concrete mold plates, and are high in butt joint precision and positioning degree. The butt joint positioning device comprises an engine base and a positioning device, wherein the positioning device comprises a left placing table, a right placing table, a middle positioning plate, a left front backup plate and a right front backup plate, wherein the left placing table and the right placing table can move left and right; the middle positioning plate can vertically lift between the left placing table and the right placing table; the left front backup plate and the right front backup plate can move back and forth; the left placing table and the right placing table can be matched closely; the engine base is provided with left and right translation driving devices which respectively control the translation of the left and right placing tables as well as a lifting driving device capable of controlling the middle positioning plate to lift; the left and right front backup plates are respectively placed on the upper surfaces of the left and right placing tables correspondingly; the left placing table and the right placing table are respectively provided with left and right back and forth translation driving devices which respectively control the left and right front backup plates to move back and forth.

The invention relates to a double-wire efficient perpendicular water-cooling electrogas welding gun which is good in radiating effect in a welding process and is high in quality of weld joints. The double-wire efficient perpendicular water-cooling electrogas welding gun comprises a first welding gun and a second welding gun which are integrated, and a cooling circuit is arranged on the double-wire efficient perpendicular water-cooling electrogas welding gun. The double-wire efficient perpendicular water-cooling electrogas welding gun is provided with the cooling circuit, and the cooling circuit, an external water-cooling slider and a water tank can form a welding circulating water cooling system, so that the service life of the double-wire efficient perpendicular water-cooling electrogas welding gun is longer. In addition, owing to the integral structural design, a gun body is thin and is compact in structure, welding efficiency is improved, economical benefit is greatly increased, and mechanical properties of the molded weld joint are high.

The invention relates to a production process of an aluminum alloy liquid tank truck. The process mainly comprises the steps of automatic welding of jointed boards, tank wrapping, tank body ring seamwelding, manufacturing of a sedimentation tank plug, assembling of a steel truck frame and an auxiliary truck frame, steel frame assembling, manufacturing of an end socket and an anti-wave plate and final assembly. The tank wrapping process adopts automatic welding of the jointed boards, the welding speed is high, the welding quality is good, the weld seam is attractive after molding, the problemsof assembling gaps and misalignment of a tank body and the end socket and attaching gaps of partition plates and cylinder plates are solved, and the welded tank body is better in straightness and more attractive in appearance.

The invention discloses a concrete formwork welding technology, which is realized by the following steps: (1) setting a welding machine; (2) ascending a middle positioning plate; (3) positioning a first concrete formwork to be welded and a second concrete formwork to be welded; (4) descending the middle positioning plate; (5) outward moving a left placement plate and a left pressure plate or a right placement plate and a right pressure plate; (6) descending and heating a middle heating plate; (7) inward moving, extruding and fusing the left placement plate and the left pressure plate or the right placement plate and the right pressure plate, to realize the welding of the two concrete formworks; and (8) ascending the left pressure plate and the right pressure plate, thus being capable of taking out the welded concrete formworks. Compared with the prior art, the welding of the two concrete formwork waste can be realized, the cut concrete formwork wastes can be welded together to form an available concrete formwork meeting the standard, so that the concrete formwork wastes can be recycled to prevent resource waste; and the welding precision is high, and the welded concrete formwork is attractive.

Disclosed are a heat transfer side kneading welding heat exchanger with headers and double dividing walls and manufacturing process of the heat transfer side kneading welding heat exchanger. The heat transfer side kneading welding heat exchanger comprises two headers, and the headers are round tube headers or D-shaped headers. A warm air inlet, a warm air outlet, a tap water inlet and a tap water outlet are fixedly connected onto each header, two or more tap water through outer tubes are fixedly connected between the two headers and are communicated with each other via the headers, warm air heat supply tubes penetrate into the tap water through outer tubes and are through, one end of each warm air heat supply tube is connected to the corresponding warm air inlet while the other end of the warm air heat supply tube is connected with the corresponding warm air outlet, and tap water heat absorbing inner tubes are disposed in parts or all of the warm air heat supply tubes and communicated with the headers. Cold water tube channels are added in cavities of the heat supply tubes to form the double dividing walls to realize convection heat transfer, a cold fluid double-pass channel is formed to realize pure backflow, average temperature difference is increased, and heat efficiency is improved.