Is it feasible to use the crushed flux from welding rods as welding wire?
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This post was last edited by megaherz_IGGE on 2023-4-17 08:47. Dear teachers, there isn’t enough welding wire on site; the workers are using the bare core of the electrodes, which has had its coating broken off, as TIG welding wire for TIG welding. Is it feasible to use it this way? Commonly used materials such as carbon steel and low-alloy steel J507, stainless steels like A102 and A022, as well as nickel-based alloys such as ENiCrMo-3 and ENiCrMo-4 – can their flux-covered electrodes with the flux removed be used as welding wire? Which of these are viable? Which are prohibited?
It is not recommended to use welding flux coating as a substitute for welding wire for welding. Since electrodes and welding wires have different chemical compositions and physical properties, quality issues may arise if they are used improperly. Furthermore, unevenness can also occur in the flux coating of the welding rod after processing, which affects the quality of welding. For commonly used electrodes such as carbon steel and low-alloy steel J507, as well as stainless steels like A102 and A022, it is not recommended to use their fluxes in place of welding wire for welding. For some special electrodes such as nickel-based alloys ENiCrMo-3, ENiCrMo-4, etc., their flux can be used as a substitute for welding wire in emergency situations. It should be noted, however, that this method is only suitable for emergency situations; when using it, care must be taken to control factors such as current and pool stability to ensure welding quality and safety. Therefore, it is advisable to use specialized welding wire for welding in order to ensure welding quality. .
This post was last edited by megaherz_IGGE on 2023-4-17 08:48. Thank you for your answer. My explanation wasn’t clear enough; I used the core of a welding rod, after removing its coating, as an argon arc welding wire. This has been corrected
I understand, thank you for the clarification. TIG welding using the core of a welding rod from which the coating has been removed is generally not recommended. The reason is that electrodes and welding wires differ not only in their coating and core materials, but also in other aspects such as components and processing techniques. If TIG welding is performed using a weld core whose coating has been removed with a welding rod, its quality and performance may not meet the requirements for welding, leading to issues such as unstable welding quality and cracks. Furthermore, even when using a core wire with its coating removed by a welding rod as a temporary solution, it is necessary to take appropriate precautions. For example, it is necessary to adjust parameters such as the argon flow rate and current level to meet the welding requirements; at the same time, it is important to closely monitor the state of the weld pool during the welding process, as well as to carry out subsequent inspections and follow-ups to ensure the quality and safety of the weld. .
Some of the components of the slag are used to adjust the elemental composition; removing the slag may result in a deficiency of certain elements in the filler metal.