1 welding technology trends, to improve welding productivity is to promote the development of welding technology, an important driving force to improve productivity two ways: first to improve weld deposition rates, such as three-wire submerged arc welding, the process parameters were 220A/33V, 1400A40V, 1100A45V. Using a small cross-section groove, set behind the plate or pad, 50 ~ 60mm of steel plate can be formed through a welding, the welding speed can be achieved, 0.4m/min above, the deposition rate and arc welding in more than 100 times compared to The second way is to reduce cross-section groove and metal deposition, the most outstanding achievements over the past decade is the narrow gap welding. Narrow gap welding using gas welding, based on the use of a single wire, double wire, three wire welding, no matter how thick joints, can be used docking forms, such as plate thickness of 50 ~ 300mm, 13mm gap can be designed around, so the amount of deposited metal into the required times, reduce the number of times, thus greatly improving productivity. Narrow weld between the main technical key is to look at how to ensure that both sides of the arc center to ensure penetration and automatic tracking in the groove center line and, for the world to develop a variety of different scenarios, resulting in a variety of narrow gap welding method. Electron beam welding, plasma welding, laser welding, butt joints can be used, and no groove, it is more narrow gap between the ideal welding method, which is it one of the reasons broader attention. Successful development of new laser-arc hybrid Welding Electrode  method can improve the welding speed, such as 5mm of steel or aluminum, welding speeds of up to 2 ~ 3m/min, get a good shape and quality of welding deformation. 2 and improve the preparation plant mechanization and automation level is currently the world's advanced industrial countries focus on the development direction. In order to improve welding productivity and quality of the structure, just start from the welding process has some limitations, and thus special attention to the workshop of the world transformation. The main processes include preparing workshop materials, transportation, material surface to the oil, sand, coated with protective paint; steel marking, cutting, beveling; parts assembly and tack. These processes in modern plants have been mechanized and automated. The advantage is not only to improve the productivity of the product, more importantly, improve the quality of the product. 3, the Nickel Welding Electrodes process automation and intelligence to improve the stability of the welding quality, poor working conditions to solve an important direction. 4, continue to promote the development of new industries welding technology forward. Welding technology since the invention has been one hundred years of history, it is almost important to meet all current industry product manufacturing needs. However, the development of new industries are still forced to welding technology continues to advance. Microelectronics industry to promote the development of micro-connection technology and equipment development; Another example ceramic materials and composite materials to promote the development of vacuum brazing, vacuum diffusion bonding. Space technology development will also promote the development of welding technology space. 5, heat welding process research and development is to promote the development of the fundamental driving force. Welding process used almost all the world can take advantage of the heat source, including flame, electric arc, resistance, ultrasonic, friction, plasma, electron beam, laser beams, microwave, etc. (Our company mainly arc welding, resistance welding equipment for welding automation main), the history of the emergence of each heat source, are associated with the emergence of a new welding process. But so far, welding heat does not end the development and research. 6, energy-saving technology is a common concern we all know, energy consumption is very large welded to electrode arc welding, for example, each about 10KVA, submerged arc welding machine each 90KVA, resistance welding machines up to thousands of KVA, many new technologies there is to achieve this energy efficiency goals. In the resistance spot welding, the use of electronic technology, the AC spot welder spot welding into secondary rectification, power factor can improve the welding machine, welding machine to reduce capacity, 1000KVA of spot welding can be reduced to 200KVA, and throw can achieve the same welding results. Over the past decade, the emergence of inverter welding machine is another successful example, it can reduce the weight of welder, welder's power to improve control performance due to the rate, has been widely used in production.