the technical requirements of anticorrosion structure construction.docVIP

the technical requirements of anticorrosion structure construction 1. The appropriate equipment and pipeline anticorrosion coating in construction including heat treatment and welding seam inspection finished, the system test And after the process transfer formalities. Such as in the previous coating, all welds must be set aside, and on both sides of weld Coating as a ladder joints, after testing qualified filling besmear according to the requirements. 2. After processing the surface of the metal, should be within 4 h of anti-corrosion layer structure of the construction. When air humidity is bigger, or Workpiece temperature below the environment temperature, the heating measures should be taken to prevent being processed workpiece surface rust again. On the surface of the coating A three degree Celsius temperature shall be above the dew point temperature before construction. (3) for composite layer coating anticorrosion construction, primer, intermediate paint, paint should be used, appropriate chooses the same manufacturer. Different manufacturers of anti-corrosion coatings for supporting the use, should be determined by way of experiment. Preparation and use of anti-corrosion coatings, appropriate USES Pneumatic mixer, mixing and stir well. Primer before dealing with logo, welding groove, thread and other special parts Armor. In addition to the product technical documents specified, before a film after work, can besmear next line of paint. 4. The single anticorrosion structure construction, such as thermal spraying zinc, aluminum and its alloys. Can use the thermal spraying coating construction Method. When spraying coating appearance has obvious defects should immediately stop spraying, the defective parts must be tables Surface treatment. 5. The equipment and pipeline corrosion protection for buried structure construction, using epoxy coal asphalt material, should be after the primer table dry, Curing should be spread before the first line of paint, and should