结果表明，焊缝存在的未焊透缺陷不影响管道的安全运行。
The results showed the existence of the flaw would not effected the safe operation of the piping.
采用有限元方法对一条含未焊透缺陷的压力管道进行了强度分析与安全评定。
By using finite element method, a pressure piping with incomplete welding flaw was analyzed in strength and assessed in safety.
基于大量计算数据，拟合得出整圈未焊透三通量纲一塑性极限内压工程估算公式。
Based on plenty of account data, engineering estimated formulas for plastic limit internal pressure were fitted for welded pipe branch junction with incomplete penetration along intersecting line.
从现场施工情况分析，焊接的内部缺陷主要有未焊透、未熔合、夹渣和气孔等几种。
Based on the analysis of site welding, the main welding defects are lack penetration, lack fusion, slag inclusion and porosity.
焊接过程电弧稳定，焊接接头熔合良好，未见裂纹、 未焊透、夹渣、气孔等缺陷。
This process showed a stable arc, good welding joints without any gas pores and cracks.
铣边工艺被广泛用于螺旋缝埋弧焊管生产，但控制不好会导致焊管出现焊偏、未焊透等缺陷。
The edge milling process is widely used for manufacture of SSAW pipes. However, in case that proper control is not ensured, defects like welding misalignment or non-through-welding may be caused.
不锈钢管件的定位焊起弧和结尾处应圆滑过渡，焊道不能太高，必须保证熔合良好，以防产生未焊透、夹渣等缺陷。
The positioning welding stainless steel pipe shall be smooth transition arc and weld end, can not be too high, must ensure good fusion, produce unweld, slag and other defects in case.
厚板焊接结构的角焊缝，多数情况下没必要完全焊透，但是，如果未焊透部分尺寸过大，就会使焊接接头的疲劳强度大幅度降低。
There is no need to weld the joint thoroughly for the cruciform joint. But if the dimension which is not welded is too large. that will make fatigue strength reduce.
对脉冲TIG焊未熔透型熔池在脉冲峰-基转换期间熔池三维形态变化行为进行了定性的分析，并从力和能量角度建立了未熔透熔池液面形态的数学模型。
The qualitative analysis is carried out on the behavior of the partial penetrated weld pool with welding current changing from pulsed peak value to base value during pulsed TIG welding.
对脉冲TIG焊未熔透型熔池在脉冲峰-基转换期间熔池三维形态变化行为进行了定性的分析，并从力和能量角度建立了未熔透熔池液面形态的数学模型。
The qualitative analysis is carried out on the behavior of the partial penetrated weld pool with welding current changing from pulsed peak value to base value during pulsed TIG welding.
应用推荐