盛装浓度为10％的硫酸铅槽(图1),因木质外围保护层破损,造成铅槽侧壁垂直方向撕裂约300mm。该铅槽不便于折卸,故只能采取立焊位补焊。由于铅的熔点低、比重大、受热后易下塌,给施焊增加了许多困难。经试验,采用自行配制的熔剂及焊料,配合适当工艺,成功地补焊了槽体的垂向撕裂,获得满意 Dressing concentration of lead sulfate tank 10% (Figure 1), due to damage to the outer protective layer of wood, resulting in perpendicular groove tear groove side about 300mm. The trough is not easy to disassemble, it can only take the vertical position welding repair. Due to the low melting point of lead, a large proportion, easy to collapse after heating, to the welding has increased a lot of difficulties. After testing, the use of flux and solder prepared by their own, with the appropriate process, successfully repaired the tank vertical tear, satisfactory