In a separate use or for the thick-walled tube welding, heat-resistant steel should use low hydrogen electrodes.
在单独使用或用于厚壁管焊接时,应选用低氢耐热钢焊条。
This practice is much more common with low hydrogen electrodes, since the core wire melts up inside the flux coating.
这种做法较为普遍,低氢焊条,因为融化的核心线内的通量涂层。
Porosity is often found when using low-hydrogen electrodes such as E-7018, and it may be difficult to establish why this occurs.
孔隙度是经常发现在使用低氢焊条例如e - 7018,它可能会难以确定为什么发生这种情况。
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