Galvanized Steel Pipe Pickling
The main reasons for the pickling of steel pipe:
(1) when the steel pipe in the feed to be strictly checked, to do not put into acid pickling unqualified steel pipe. .
(2) steel pipe in the vibration is not careful operation.
(3) pickling time and lack of hydrochloric acid content.
The main reasons for the steel pipe over pickling:
(1) hydrochloric acid content is too high.
(2) pickling time is too long.
After pickling the outer surface of steel pipe is smooth, with or without residual iron oxide, with or without grease pollution of steel pipe surface.