downhand

基本解释

What does the nonstandard term “downhand” mean ?
(非标准术语“平焊”表示什麽意思？
The concept of motion planning for welding positioner is discussed, and the mathematical model of rotating/tilting positioner under the downhand welding position is created.
对焊接变位机运动规划的任务进行了分解,建立了旋转倾斜型焊接变位机使待焊点处于最佳焊接位置时的数学模型,并编制了求解程序,对空间螺旋线型焊缝进行了模拟。
butt-weld in the downhand position
对接平焊
fillet welding in the downhand position
船形角焊
Keywords pressure vessels;downhand welding;continuous welding;
压力容器;平焊;连续焊;管对接;