H2S generation:
    In order to suppress the low nitrogen oxide (NOx), many power plants will use a low-nitrogen oxide boilers, and coal combustion is not fully take advantage of its special design, and the heat generated by the boiler to reduce and thus inhibit the low the generation of nitrogen oxides. But a side effect of doing due to incomplete combustion coal generating H2S. <H2S interested in the boiler wall, in particular the waterwall produce serious corrosion, the corrosion strength can be achieved annually 1.5mm-2.3mm, and for this plant requires frequent shutdown of the boiler for maintenance. 6 years, the company uses the material (ie the company INCONEL622 filler metal) ERNiCrMo-10s, and has played an outstanding role in reducing the corrosion. Traditional nickel-based welding consumables is to use the gas tungsten arc welding (Tig) low deposition rate surfacing in the boiler water wall.

2, a Copper Welding Electrodeprocess:
    The great wall of water surfacing workload, generally using automatic and with a dedicated program control gas tungsten arc welding process. To solve the viscous resistance of nickel base consumables in the molten state, generally torch also supplied to a slightly fast swing. Such as the use of 1.2mm welding wire flat welding, welding current about 350A, welding voltage of about 28V and pure argon for protection, the deposition rate can reach 7-8 kg an hour, while the dilution rate of the nickel alloy welding consumables very low, up to 5% -8% (ie, loss of corrosion-resistant elements in the molten pool is only 5% to 8%)

3, to improve productivity
    Visits an important indicator of plant efficiency: outages - maintenance cycle. When we use  Welding Suppliesg consumables to prevent the the device inner wall corrosion direct result is to make the outages shorten the increase in productivity.

4, other nickel-based welding consumables:
    Outside addition to INCONEL622 filler metal, including INCONEL625 filler metal (or INCONEL112 electrode) the INCO-WeldC-276 filler metal, and so far, apply to most strongly corrosive environment of welding consumables: INCO-Weld686CPT
From now until the end of 2005, the national power company requirements of the country in the FGD system construction production capacity has reached 18 million kilowatts (circulating fluidized bed boiler 4 million kilowatts).