Therefore, it is particularly suitable for large parts of the straight seam
welding of girth. And most mechanized welding. Submerged arc welding has been
widely used in carbon steel, low alloy steel and stainless steel welding. As the
slag cooling can reduce the connection speed, so some high-strength structural
steel, high carbon steel, also can be used submerged arc welding. This is a
non-melting polar gas shielded arc welding is the use of tungsten arc between
the workpiece and the metal melt and form a weld. Tungsten welding process does
not melt, only play the role of the electrode. At the same time sent from the
torch nozzle for the protection of argon or helium. Also needed to add another
metal. Internationally known as TIG welding. Gas tungsten arc welding as well to
control the heat input, so it is connecting sheet metal and welding backing and
a great way. This method can be used for virtually all metal connections,
especially for welding aluminum and magnesium which can form refractory oxides
such as titanium and zirconium metal, and these active metals. This method of
welding seam of high quality, but compared with other arc welding, the welding
speed is slower. More processing machine of laser pointer can ensure the high
output of laser pointer . The parameter in the drawing of laser pointer has to
be renewed as per the real situation. Plasma arc welding is a non-melting polar
arc. It is the use of compressed between the electrode and the workpiece arc
(called the forward transfer arc) to achieve welding. Is often used in tungsten
electrodes. Plasma arc generated plasma gas can be argon, nitrogen, helium or a
mixture between the two of them. Also protected with an inert gas through the
nozzle. Plus welding filler metal can also be without filler metal. Plasma arc
welding, the arc because of its straight, energy density, which arc penetration
ability. Plasma arc welding holes generated effects, a certain thickness range
for most metals can not open groove butt, and to ensure uniform penetration and
weld. Thus, plasma arc welding of high productivity, weld quality. However,
plasma arc welding equipment (including nozzle) is more complex, the control of
welding parameters higher. Gas tungsten arc welding can weld most metals, plasma
arc welding can be used. Low price of laser pointer is the most remarkable
characteristics of laser pointer .
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