Treatment of overburning defects in tube-to-tube sheet welding
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I would like to ask the experts: When welding pipes to tube sheets, overburning occurs. What is the usual approach we take to deal with this? Especially for highly alloyed tubes and tube sheets. Thank you!
Use TIG welding for repair; if the overheating is not severe, it is possible to weld without using a wire. It’s too serious; I think the only option is to block the tube!
By examining the area and extent of the burn, if it is minor and covers a small area, the defect can be removed using a grinder or other methods, after which it can be repaired by welding using the original welding technique. If it is a large area that has already affected the use of the equipment, it depends on the specific circumstances; it cannot be generalized.