COVERED ELECTRODE FOR NICKEL BASED HIGH CHROMIUM ALLOY WELDING

摘要

The present invention has excellent welding workability , no welding defects and chromium in the welding of nickel based alloys relates to the covered electrodes are used , Be made by applying a coating agent in a high purity nickel core wire of more than 93% by weight nickel , the coating in I wt% , 15 to 25% metal carbonate , metal fluoride, 10-20% , 1-4% deoxidizer , slag forming a first 1-4% , 55-65% alloy , and includes a fixing agent 1 ~ 3%, ( Metal carbonate to metal fluoride + alloy ) / ( deoxidizers + binder + slag formers ) provides a covered electrodes for nickel -based high-chromium alloy is satisfied that the value of 15 to 19 in .