| abstract |
The invention discloses a kind of anti-corrosive steel tube and its manufacturing process；Its anti-corrosive steel tube includes steel pipe and the FBE outside steel pipe, in addition to polyethylene and thermosol composite powder coatings outside FBE；Anti-corrosive steel tube manufacturing process comprises the following steps：A, the preparation of adhesive and polyethylene composite powder；B, the spraying of epoxy powder；C, the spraying of polyethylene and thermosol composite powder；D, cool and solidify；Anti-corrosive steel tube antiseptic effect in the present invention is good, and relatively conventional technique reduces processing step in manufacture, beneficial to improving production efficiency and reducing the input of fund and equipment, can be easy to Single unit job lot production, can meet the processing request of municipal anti-corrosion pipe. |