1. Welding spatter
Welding spatter has a lot to do with the welding process. For example: GTAM (Gas Shielded Tungsten Arc Welding) or TIG (Inert Gas Shielded Tungsten Arc Welding) has no spatter. However, when using GMAW (gas shielded metal arc welding) and FCAW (arc welding with flux core) two welding processes, if the welding parameters are used improperly, a large amount of spatter will be caused. When this happens, the parameters must be adjusted. If you want to solve the problem of welding spatter, you should apply anti-splash agent on each side of the joint before welding, which can eliminate the adhesion of spatter. After welding, this splash preventer and various spatters can be easily cleaned away without damaging the surface or causing slight damage.
2. Flux
The welding process using flux includes manual welding, flux-cored arc welding and submerged arc welding. These welding processes will leave small flux particles on the surface, which cannot be removed by ordinary cleaning methods. These particles will be the source of crevice corrosion, and mechanical cleaning methods must be used to remove these residual fluxes.
3. Welding defects
Welding defects such as undercut, incomplete penetration, dense pores and cracks not only reduce the firmness of the joint, but also become a source of corrosion for crevice corrosion. To improve this result, when cleaning operations, they also entrain solid particles. These defects can be repaired by re-welding or re-welding after grinding.
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