New TIG welding process

 As manufacturers in the Middle East respond to the greater demand and the evolving realities of the market, the supply of sustainable products will become increasingly common. Energy-efficient welding tools have become more affordable and now come in a variety of specifications. Tungsten Inert Gas (TIG) welding is highly prized for its ability to produce clean, even, and aesthetically pleasing welds that don't actually require any post-welding finishing.
Middle East's welding industry fortunes depend on demand from sectors, such as steel, aluminium, oil exploration and ship-building. The Gulf and the rest of the Middle East are on the frontline of development among emerging economies, and Dubai is the gateway to this huge market. UAE plans to swiftly leverage its reputation for innovative welding solutions and superior technical service. The major industries that will benefit in the region include oil & gas, petrochemical, power generation, desalination and chemical.

Japanese TIG welding
A new TIG welding process, developed by Japanese inventors, focuses on altering the surface tension of the puddle in the weld by varying the chemistry of the metal directly at the weld. Historically, a TIG welder uses a single shielding gas surrounding the electrode. The new Japanese TIG welding technology utilises two concentric streams of shielding gas. The inner layer of shielding gas is the normal inert gas used to protect the weld and the electrode. Around this gas stream is an added layer of an oxidative gas that reacts with the molten puddle. According to the patent, this outer layer of an oxidative gas can be either pure oxygen or carbon dioxide. The choice of gas is obviously going to substantially affect the manner of the reaction, but to the welder the difference will remain largely unnoticeable.
The addition of oxygen to the weld puddle reduces the surface tension at the periphery of the weld puddle, allowing the metal to flow back toward the centre. The result from more of the liquid metal flowing back to the centre of the puddle is inward and downward heat convection in the molten pool creating a deeply welded metal portion in the base material. (For those who absolutely must know, this is technically called Bénard- Marangoni convection.) Properly applied, the weld is left with an oxide coating of approximately 20μ (microns).
Like nearly every patent, aside from being bombastically cryptic, the patent for this TIG welding technology lists several alternative designs intended to cover the inventors on most other possible ways of performing the operation. In this case the subsequent designs detail two or more separate gas jets arranged around the periphery of the inner shielding gas stream in lieu of a single concentric oxidative gas stream.
According to the tests run by the inventors these various arrangements of the outer gas stream will have varying effects on the weld and the manner of welding, but the net effect of a deeper high-quality weld remains largely the same. In other words, while the subtleties of arranging the outer gas flow make for fascinating consideration to the engineer, chemist or physicist, the affect on the welder and the work they are producing is largely invisible. There is one notable exception perhaps to this, and that is the reduced degradation or consumption of the tungsten electrode. In side by side tests run by the inventors in the process of the development of this welder, the electrode in the twin shielding gas process showed essentially no degradation in the welding electrode. From an operator's point of view this will make the process more efficient since electrode change out will be far less often.
This newly patented TIG welding technology hasCheap Nike Air Max 2017 For Online Sale