People in a wide range of application of laser welding technology, while also constantly be in-depth study of its shortcomings, the use of the heating performance of the other sources of heat to improve the laser heating of the workpiece, on the basis of maintaining the advantages of laser heating, thereby laser and other heat sources with hybrid Welding Assembly, the main laser arc, laser and plasma arc, laser and induction heat source hybrid welding, as well as dual laser beam welding. Hybrid welding can increase weld penetration, improve joint performance, reduce equipment costs, and increase the welding Welding Wirespeed and productivity. In short, laser welding and high production efficiency, stable quality and reliable, good economic and social benefits. In new equipment, new materials, new technology and new technology after another, the era of constantly updated, the producers not only to understand the characteristics, advantages and requirements of laser welding, this field should be recognized as a lot of innovation and future trends, the only way to grasp technology trends, can always walk the forefront of the times.

Welding Wires reels for the use of the submerged arc welding equipment and no the plate wire machine users, most operations are unhappy coiled wire, because this thing is actually relatively difficult. If not using the submerged arc welding machine or frequency of use is not very high, usually will not spend money to buy the disc silk machine, choosing instead to allow the operator to manually coiled wire. The direct use as their own design and manufacture a whole spools of wire spools problem solved. Here is the simple structure of the wire spools.
Wire reel only by the member of the reel 1 and the bracket 2 two components, as shown. The bracket not necessarily icon structure can be designed and manufactured according to the needs of different situations themselves.
Reel wire reel core components of the specific structure as shown. Reel 1 - reel body, 2 - large cap, 3 - Supports coat, 4 - boring cover, 5 - axis circlip, 6 - bearing 7 - bolt, 8 - nuts such as zero components. The reel body by 1 - the small circular plate, 2 - short tube, 3 - large circular plate 4 - the two rings, 5 - a small shaft preform and 6 - Two bolt group welded, such as shown below. Group welding sequence is: first 1,2,4 each one and pieces 6 bolt two groups welded into a component, 3,4,5 each a group then welded into the second part, and then the two a component group welded into one. In pieces large cover two nut installed in the main body of the reel, the operator hands do not have to use the wrench to tighten the nut in place can be used. The remainder of the bearing, shaft circlip support jacket, boring cover can be assembled in Fig.
Assembly, the bearings can be appropriately filled grease.
Install wire first reel shaft overturned vertical stand on the ground, unscrew the nut and remove the large cap; spools of wire sets to the reel body, covered with large cap, screw on the nut can.
The installed wire reel move down the shaft was flat home state lanyard can be lifted to the desired location. Switch to the wire after-hours, eliminating the need for the disc silk heavy labor, welcomed by welding workers.
Quality of bearing up to 10000kg; The best applicable diameter range 273 ¯ 850mm. Seen from the figure, there are low-end and high-end of the applicable diameter range appropriate to expand the scope for. The use of the supporting roller frame: a fixed center drive device on the chuck (direct clamping or using larger auxiliary mounting flange at one end of the elongated workpiece fixed in the left front of the operator), the cantilever end Bento round The frame supporting the the riding wheel height to be adjusted to the workpiece in a horizontal state. Supporting roller longitudinal direction along the workpiece placement can be broadly selected close to the workpiece at the midpoint of the right-hand, so that most of the mass of the workpiece by the supporting roller bearing, and the drive means also appropriate to bear under pressure. Add Reduction Drive For supporting wheel electric lift for the adjustment screw.
Tropsch The basic principle of the wheel frame, as shown: 8 supporting rod member propped two roller, located in the lower end of the supporting roller between each of the two support rods with a hinge fixed to the lower pallet, which is located outside of each two support bars at hinged fixed in placed on the pallet chute skateboard the two skateboard outside of Central were installed the copper around screw nut, screw supported at both ends with pallet fused can be realized by the end square head rotation screw on the beam with a copper jacket, riding wheel lift.
Support bracket wheel: located Tropsch axle ends of the axis of each of the four support rods are located in the same plane, so that it has good force state.
Chute installed under the extended cover a large pallet top surface bonded joint mechanical (mechanical manufacturing industry is waiting for the industry to pick up) performance degradation. Drawings for butt welds (GTAW complete wire 212, tin phosphor bronze wire).
3.1 should prevent weld metal hydrogen absorption and oxidation, weldment surface before welding electrodes, flux drying use to remove oil, water, etc.;; wire surface may not have water.
3.2 of the weld to strengthen deoxy, adding deoxidizing elements such as silicon, aluminum, titanium, manganese.
3.3 to strengthen the protective effect of the inert gas welding.
3.4 select the appropriate welding process parameters to reduce the cooling rate, penetration is not too large.
3.5 weldment and welding materials harmful elements such as oxygen, lead, bismuth, sulfur content must be strictly limited.
3 welded Note welding to strengthen the protection of the molten pool, reducing welding stress process measures, such as the selection of the heat concentrated heat source and preheat reasonable choice of welding sequence, slow cooling after welding.
4.1 before welding according to the welding procedure qualification process to develop a detailed program, and according to the site test welding technology program, and then determine on-site welding operation instruction.
4.2 welders shall be qualified by training and examinations.
4.3 welder and argon gas cylinders on the measuring instruments must be within the calibration cycle instructions accurately. The argon purity of 99.99%.
4.4   Welding Assembly Visual inspection: butt weld strengthen the height ¯ 4mm; weld fusion the cylindrical arc quality inspection transition, smooth surface, no burrs and uneven at the surface of welded joints without visible cracks, dents incomplete penetration, lack of meat and other defects.
The 4.5 internal inspection: X-ray inspection of welds in accordance with JB/T4730-2005 standard, all results are satisfactory.
Production Practice has proved that the TIG welding copper, argon protective effect, high weld quality, stable air flow protection, can be effectively isolated from the ambient air, argon is not soluble metal not react and metal welding molten pool stable, spatter few metal elements burning small, difficult to blowholes, TIG heat concentrated high temperature welding fast, appropriate heat level is low, narrow heat-affected zone, weldment deformation is small, stable arc. TIG welding copper slag, spatter free weld pool and the arc of visibility, easy to operate, is also a good way of side welding sided forming. Open arc operation, easy to control the size of the molten pool, lack of penetration and the opportunity to burn through less complex welding metallurgy process, easy to weld quality weld. The downside is the low productivity, tungsten bearing current restriction in too large current causes the tungsten electrode melting and evaporation will cause the weld folder tungsten, weldments cleanup before welding requirements, argon welding, higher costs .