Pointcorrosion testing indicated that there is not pointcorrosion mark, and uniform corrosion characteristic was present to the filler metal.
点腐蚀试验结果表明，在整个试验过程中，钎料表面表现为均匀腐蚀，点蚀的迹象不明显。
2
Dew pointcorrosion can be effectively avoided by using qualified sulphur as raw material and installing heat pipe element in the low temperature section of economizer.
采用优质硫磺作原料，在省煤器低温段采用热管元件等可有效地解决硫磺制酸露点腐蚀问题。
3
The corrosion mechanisms of low temperature dew pointcorrosion and improvements of atmospheric air pre-heater to resist low-temperature dew pointcorrosion were introduced.