高级检索
韩永全, 陈树君, 殷树言. 铝合金变极性等离子焊接电弧产热机理[J]. 焊接学报, 2007, (12): 35-37,42.
引用本文: 韩永全, 陈树君, 殷树言. 铝合金变极性等离子焊接电弧产热机理[J]. 焊接学报, 2007, (12): 35-37,42.
shu
HAN Yongquan, CHEN Shujun, YIN Shuyan. Principle of produced heat by arc properties in VPPA of aluminum alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (12): 35-37,42.
Citation: HAN Yongquan, CHEN Shujun, YIN Shuyan. Principle of produced heat by arc properties in VPPA of aluminum alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (12): 35-37,42.
shu

铝合金变极性等离子焊接电弧产热机理

Principle of produced heat by arc properties in VPPA of aluminum alloy

    摘要
  • 摘要: 从铝合金变极性等离子焊接电弧物理特性出发,研究了铝合金变极性等离子焊接电弧产热机理,分析了焊接参数对电弧热的影响规律。通过理论分析和试验研究,发现铝合金变极性等离子弧焊接时不对称电极特性对正、反极性期间电弧的产热具有很大的影响。反极性期间由于铝合金作为阴极,阴极压降大电弧产热量也增大。在变极性等离子弧焊接时正、反极性期间的焊接电流和持续时间等参数不同也是造成正、反极性等离子电弧产热不同的重要原因。

     

    Abstract: The paper studied principle of arc produced heat in VPPA and analysed how welding parameters influence arc heat from physical properties of arc on Al alloy.It is shown that dissymmetrical electrode properties have great influence on produced heat of arc in positive and negative times.When Al alloy is used to be negative electrode, negative voltage produced more heat.Different parameters of welding current and lasting times are very important factors to produce heat in positive and negative times

     

    • HTML全文
    • 参考文献(0)
    • 相关文章
    • 施引文献
  • 资源附件(0)

/

返回文章
返回