一般对接焊件的焊縫都留有1.5～2公厘的間隙。如果这个間隙大小不一致,会无形中增加焊条的消耗和引起焊件不必要的变形。附图表示我們改进的一种控制焊接間隙的装置。在焊接的时候,把它放在对接接口上,用点焊先把焊件点接起来,然后沿着甲的方向用手錘輕击,把这种装置卸下来,就可以开始焊接了。这种装置是用三块不同厚度的鋼板焊接成的,使 General butt weld weld left 1.5 ~ 2 mm gap. If the gap size is inconsistent, will virtually increase the consumption of welding rod and cause unnecessary deformation of the weldment. The figure shows an improved device for controlling the welding gap. When welding, put it on the docking interface, spot welding the first welding point pick up, and then along the direction of a hammer with a hammer, the device is removed, you can start the welding. This device is welded with three different thicknesses of steel so that