Flexible extendable backing shield for welding reactive metals
    1.
    发明授权
    Flexible extendable backing shield for welding reactive metals 失效
    用于焊接反应性金属的柔性可延伸背衬屏蔽

    公开(公告)号:US4866236A

    公开(公告)日:1989-09-12

    申请号:US183949

    申请日:1988-04-20

    IPC分类号: B23K9/32

    CPC分类号: B23K9/325

    摘要: A flexible extendable backing shield for use with the welding of reactive metals such as titanium. The backing shield provides a means for selectively distributing the inert gas along the length of the shield and then diffusing the inert gas to the root side of the weld to prevent oxidation and embrittlement of the weld root. The backing shield is of modular configuration so that a plurality of the devices can be readily connected together to shield a variety of complex shapes.

    摘要翻译: 一种柔性可延伸背衬屏蔽,用于焊接诸如钛的活性金属。 背衬屏蔽件提供了用于沿着屏蔽件的长度选择性地分配惰性气体,然后将惰性气体扩散到焊缝的根侧以防止焊接根部的氧化和脆化的手段。 背衬屏蔽件具有模块化构造,使得多个装置可以容易地连接在一起以屏蔽各种复杂形状。