Epoxy Coal Asphalt Corrosion Pipe

Epoxy coal asphalt has good adhesion, chemical resistance and abrasion resistance, can effectively prevent the steel pipe in the use of the process of erosion by corrosive media, so as to extend the service life of the steel pipe.

Epoxy Coal Asphalt Anticorrosive Steel Pipe Specification

Standard:API, GB, DIN, ASTM
Standard2:API 5CT, API 5L, GB/T9711,
DIN 1629/4, ASTM A53-2007
Thickness:2.9 - 60 mm
Section Shape:Round
Outer Diameter(Round):22 - 1620 mm
Place of Origin:Hebei, China
Certification:API
Special Pipe:API Pipe
Alloy Or Not:Non-alloy

Epoxy coal asphalt anti-corrosion steel pipe production process

The first step: 1. steel pipe → shot blasting (or sand blasting) rust removal → 2. steel pipe sand blasting, dust removal surface cleaning → 3. weld pre-coating epoxy zinc-rich primer → 4. airless spraying epoxy Coating method zinc-rich primer → 5. spraying epoxy coal asphalt paint → 6. glass cloth wrapping → 7. spraying epoxy coal asphalt paint → 8. glass cloth wrapping → 9. spraying 2 layers of epoxy asphalt paint → 10. curing Coating → 11. Quality inspection → 12. 12. correction → 13. submission.
Step 2: Pipe repair lining: 1. Butt welding of steel pipe → 2. Cooling → 3. Grinding the weld patch at the pipe end to ST3 level → 4. Re-coating with epoxy zinc-rich primer → 5. Re-coating with epoxy asphalt paint and pipe body (overlapping by 100mm) → 6. Glass cloth wrapping → 7. Spraying of epoxy asphalt paint → 8. Glass cloth wrapping → 9. Spraying of epoxy asphalt paint with 2 layers → 10. Curing of coatings → 11. Quality check → 12. Correction → 13.submission.