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氢在焊接中起着重要的作用。氢主要是在焊接期间由从电极涂层上放出的裂解有机物质和无机的凝固水分形成的。根据熔池温度和焊接金属上面的氢分压,液态焊接金属和母体金属的热影响区吸收相当多的氢气。在金属熔池固化和冷却时,部分氢气逸出到
Hydrogen plays an important role in welding. Hydrogen is mainly formed during soldering by a cracked organic substance released from the electrode coating and inorganic coagulated moisture. Depending on the bath temperature and the hydrogen partial pressure above the weld metal, the HAZ of the liquid weld metal and the parent metal absorbs a significant amount of hydrogen. Part of the hydrogen escapes as the metal bath solidifies and cools down