Special electrode with high temperature corrosive resistance

Based on testing and analyzing of the high temperature oxidation and sulphidation resistance of electrodes A402,A302,A202 and Cr24Ni7,the special electrode with new alloy system Cr26Nil6 is designed.Through the addition of rare earth oxidation La₂O₃ and CeO₂ into the electrode coating,the effect of rare earth oxidation on high temperature oxidation and sulphidation resistance is studied and the rational addition amount is suggested.The paper also evaluates the characteristic of the electrodes.The result shows that the electrode can satisfactorily meet the requirement of high temperature oxidation and sulphidation resistance.The addition of rare earth oxidation can improve the high temperature resistance,especially on sulphidation condition..The electrode with La₂O₃ has better performance than the electrode with CeO₂.