The results show that the absolute humidity of the welding environment has great influence on the hydrogen diffusion, and that the greater the absolute humidity, the higher the content of hydrogen diffused in deposited metal.

• 结果表明，焊接环境的绝对湿度对超低氢焊条熔敷金属中扩散氢含量有较大影响，绝对湿度越大，焊缝金属中扩散氢含量越高。