摘要
According to the characteristics of electric arc spraying technology and abrasion of boiler piping,a flux cored wire SMD 45 for electric arc spraying is developed The experimental results show that the surface hardness of the coating reaches 60～65 HR and the adhesive strength between the coating and base is 23～28 MPa The wearability of the coating sprayed by the wire is 5 times than that of ordinary steel pipe Applying the wire to the heated surface,the life of the economizer pipe is doubly increased No local desquamation,rust and abrasion can be examined during more than one year's service.
According to the characteristics of electric arc spraying technology and abrasion of boiler piping,a flux cored wire SMD 45 for electric arc spraying is developed The experimental results show that the surface hardness of the coating reaches 60～65 HR and the adhesive strength between the coating and base is 23～28 MPa The wearability of the coating sprayed by the wire is 5 times than that of ordinary steel pipe Applying the wire to the heated surface,the life of the economizer pipe is doubly increased No local desquamation,rust and abrasion can be examined during more than one year's service.
