The weld defects of incomplete fusion and burn through always occur when the electro-slag welding is used between the outside thin metal plate and the inner clapboard in a box-section member.
箱形截面构件薄壁板与内隔板电渣焊接时，易产生壁板烧穿和焊缝未熔合现象。
2
Both the cathodic polarization curves and the scanning electro-micrographs of the zinc deposits show that these compounds are beneficial effect in achieving a bright, uniform zinc plate.
镀液的阴极极化曲线与锌镀层的扫描电子显微图均表明：这些化合物对获得光亮均匀锌镀层起很好的作用。
3
On the basis of electro-magnet relationships, a mathematical model of permanent magnet linear synchronous motor (PMLSM) with a conductive plate on its secondary was built.