... T-fillet weld丁字接头角焊缝 tack weld定位焊点; 定位焊缝; 临时点焊; 预焊; 平头焊接 tack welding 平头焊接, 点焊 ...
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tack-welding jig 定位焊夹具
tack-welding 点固焊 ; 间断焊
tack welding process 预焊工艺
Tack Welding Machine 合缝预焊机
N short intermittent welds made to hold components in place before full welding is begun 点焊; 平头焊接 [engineering]
Assemble and fit metal sections and plates to form complete units or subunits using tack welding, bolting, riveting or other methods.
采用点焊，螺栓，铆接或其他方法，组装金属型材和板，以形成完整的单元组或亚单元组。
Besides, centering and tack welding by laser beam should be avoided as centering point and tack-welding point can influence weld quality largely.
但焊缝质量受激光对中点和点焊点的影响很大，应尽量避免采用激光对中及点焊。
Internal bolts subject to vibration, fluctuating load, impact load or dynamic load shall be protected against loosening. Double nuts, unti-loose washers, tack welding, etc. shall be used.
可能受到振动、波动载荷、冲击载荷或动力载荷的内部螺栓应加以保护防止松动。可采用双螺母、防松动垫圈、点焊等。
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