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Problems encountered in welding of JIS G3114 SMA 50 CP weathering steel plate

Problems encountered in welding of JIS G3114 SMA 50 CP weathering steel plate

When welding JIS G3114 SMA 50 CP weathering steel plate, there are often three quality problems: false welding, impermeability and weld joint carbonization. How to solve them?

1. Welding
The virtual welding of JIS G3114 SMA 50 CP weathering steel plate hot melt butt welding is mainly caused by insufficient stroke of the butt welder fixture and too fast fixture speed during butt joint.

2. Welding is impervious
The main reason for this situation is insufficient heating time. The solution is that when the construction environment is lower than 30°C and the wind is high, the heating time should be adjusted appropriately according to the specifications of JIS G3114 SMA 50 CP weathering steel plate.

3. The penetration of the weld
The reason for this quality problem is that the heating time of the JIS G3114 SMA 50 CP weathering steel plate is too long, which is the opposite of the impermeable welding situation. For hot melt butt welding, some construction workers believe that the longer the heating time during the welding process, the better the welding effect. it is good. The fact is just the opposite. When the JIS G3114 SMA 50 CP weathering steel plate is heated for too long, carbonization will occur, which will seriously affect the welding quality.

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