JB/T 7217-2008 "General technical conditions for painting of separation machinery" is a mechanical industry standard, which stipulates the general technical requirements for painting of separation machinery. The content covers painting pretreatment (substrate derusting, degreasing and surface cleaning), Coating performance indicators (adhesion, corrosion resistance, weathering resistance, medium resistance, etc.), coating process (primer, intermediate paint, topcoat supporting system and coating process), coating thickness control, Appearance mass requirements (flat and uniform, no sag, bubble, etc.) and inspection rules. This standard applies to the surface protection painting of separation machinery. Through standardized process and mass control, it ensures that the coating effectively resists corrosion and abrasion under complex working conditions, and at the same time improves the equipment Appearance conformity, provides technical basis for the painting design, production and inspection of separation machinery, and helps to ensure the reliability and service life of the equipment.