How to check the construction quality of steel structure painting project?

The construction quality acceptance of steel structure paint anti-corrosion, metal thermal spray anti-corrosion, hot-dip galvanizing anti-corrosion and fire-resistant coating coating can be divided into one or several according to the principle of division of steel structure production or steel structure installation sub-project inspection batches Inspection lot.

1.

(1) The rust removal grade of the steel surface before painting should meet the design requirements and comply with the current national standards.

(2) When the design requirements or the construction unit adopts a certain coating and coating process for the first time, the coating process evaluation should be carried out, and the evaluation result should meet the design requirements and meet the requirements of the current national standards.

(3) The anti-corrosion coating, the number of coating passes, the coating interval, and the coating thickness should all meet the requirements of the design documents and coating product standards.

2.

(1) The anti-corrosion operation of the on-site connection welds, fasteners and connecting nodes of the steel structure, as well as the damaged parts of the component coating during the construction process, is different from the anti-corrosion operation in the manufacturing process.

3.

(1) Before the application of the fire-resistant coating, the quality of the anti-corrosion coating on the steel surface should meet the design requirements and meet the requirements of this standard.

(5) The base layer of fire retardant coating should not be stained with oil, dust, mud and sand.