Italian flat spot welding electrode burning analysis Normal, the cooling water flow, check the welding gas system is not unusual, completely normal welding regulations Received date :2004-05-14 from Profile: Full line of Liu (1969 male, Chongqing Tongnan people, degree, mainly engaged in equipment management and maintenance work van to find the cause of the malfunction, only staff from the welding power supply, the welding of the main circuit shown in Figure 1. b. l03 --- ~ V4. (1__J-LJa ~ VT6 Yan ;, a ~ VT6 Yan. __JI, VDVD, L, 1N1Ll/1JF '- IVD0-● VDJt.ANL Figure 1 the main circuit output current of the machine's main circuit from the primary side of the thyristor conduction angle control, the second side for the six-phase half-wave rectifier circuit due to welding specifications set properly, the cooling water flow, the electrode pressure is normal, thus,ugg støvler, resulting in the instantaneous melting of the electrode only reason is that the instantaneous large current output, but the machine by a welding current side of the thyristor conduction angle of the decision, once set up a proper welding specifications, the output current should be a fixed value by Figure 1, the welding of the welding transformer secondary winding touch enough ‰ · 59 g 'Hail Hui Russian production and application of 34 volumes and 6 (Group) common anode connection of the diodes of the six-phase half-wave rectifier circuit: under normal circumstances, any moment and only the minimum phase voltage instantaneous value of derivative component of a phase pass, such as the A-phase minimum. VD, conduction, this time of the anode potential is also the lowest point k, forcing the other five (group) under the diode can not turn back pressure, with the first group of products according to the brake pipe set trigger turn-on phase sequence,ugg suomi, the secondary winding diode VD. ~ VD has also triggered the phase sequence and according to their turn, as any instant only one pipe conduction,uggs australia, so each rectifier and transformer secondary winding device will full load current flows through, and the conduction angle of only 60, or 1 / 6 cycle,uggs outlet, under normal circumstances, the main transformer secondary winding load current is in equilibrium when there is a phase diode breakdown, resulting in a a secondary winding short-circuit, resulting in three-phase secondary winding current strict Page31. longitudinal reinforcement (QYSN a 2900-type production lines up to 28) of the feed as well as trawling, cutting, conveying, stacking and other processes in parallel control , in which the cross bar transfer process and welding process is controlled in sequence, in which the programming instructions in the use of STL programming step in Figure 4 for the welded steel transverse reinforcement of transmission and control of welding processes ladder Figure 3 Production Control 4 Conclusion PLC control flow to achieve a fast transfer between the various processes, welding speed of 40 to 80 steps / min. welded steel diameter 5 ~ 12mm, the horizontal welding net mesh size of 50mm multiples of horizontal network minimum cell size of 1001/1113, tolerance ± 11/1113. Welding longitudinal grid size can be adjusted stepless; production line suitable for large quantities or varieties of small batch production needs; equipment package to meet the automatic,stivali ugg italia, manual, single-step operation requires all moving parts with precision control and high reliability, fast response,ugg zürich, and security features. References: [1] Li Jing school. the use of programmable logic controller system design [M] Beijing: Electronics Industry Press, 1995 [2] often Dounan. programmable logic controller application test theory [M] Beijing: mechanics weight balance, flow through the load (by welding pieces of) the current suddenly increases, causing severe burning of the electrode phenomenon.. As for the pool and the accumulation of burning out the door on the right gap is due to the electrode plate from the door Ligament close, molten copper electrode spread,ugg stivali, its heat would melt the right ribs to open the gap. to the main circuit thyristor tubes and high-power rectifier diodes for protection, to ensure stability of the normal welding operation, in addition to the original installed in the welding current of the main circuit fuse protection of this most simple and effective components, we also took in the main circuit input and output side mounting to absorb over-voltage varistor, rectifier diodes and thyristor turn-off commutation, in order to suppress and prevent excessive du / dt caused by the failure,ugg australia, in its parallel across the RC network. X4X5X6-HH Bu - turn - Mu - hit $ 20S2l $ 23 Ⅲ $ 24 Ⅲ $ 25 - Man! lJH BU SET garden Tl a very in-situ welded steel stand pressed steel feed,uggs sverige, feed steel cut, releasing the release retracting steel welding input 4 horizontal bars delivery systems and welding steel ladder industry Press, 2000 [3] Zhang Wenming, coke Wancai, Zhang R, et al. welding swing device PLC control system design [J1_ welding, 2003,ugg danmark,33 (3) :25-27 . one hundred and eleven sub-eleven Gui eleven thousand one hundred and eleven =} = a =} = eleven thousand one hundred eleven 相关的主题文章： root welding feature-oriented overview of the whole welding root welding
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