Abstract: 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
than 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.
Key words: Abrasion resistance Electric
spraying Flux-cored wire
* Selected
from Proceedings of 2000 the First International Conference on
Mechanical Engineering; revised manuscript May 10, 2001
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