603062.SH
Shanghai Stock Exchange Stock Code
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021-5910 0888
Transformer
Transformers are core equipment in power systems for voltage conversion, power distribution, and transmission, widely used in power generation, transmission, distribution, and consumption. Our specialized transformer coatings minimize equipment corrosion, reduce maintenance costs, and extend service life.
Epoxy Zinc-Rich Primer + Epoxy Micronite Paint + Polyurethane Topcoat
Coatings for high-altitude regions must pass the -40°C cold impact test (GB/T 1735) without cracking. For tropical climates, the primer must withstand 1,000 hours of the 85°C/85%RH dual-85 test. Fluorocarbon resin systems ensure a glass transition temperature (Tg) exceeding 120°C.
Coastal grid equipment requires paint to pass cyclic corrosion testing (CCT), comprising 72 hours of salt spray + 24 hours of drying + 72 hours of alternating wet-heat cycles. The recommended coating system employs a three-coat system consisting of an epoxy zinc primer (dry film zinc content >80%) + polyurethane topcoat.
For rail transit transformers, the coatings must meet the ISO 6270-1 vibration test standard. Adding nano-silica (particle size 30-50 nm) enhances the paint film's toughness, achieving the ASTM D968 Method B 40 L/μm standard in the sand loss abrasion test.
Case Details
A triple-layer protective system comprising epoxy zinc-rich primer + epoxy micaceous iron oxide intermediate coat + polyurethane topcoat delivers comprehensive defense. The primer, with zinc content ≥80%, provides cathodic protection; the intermediate coat enhances coating thickness to over 200μm; the topcoat exhibits UV aging resistance exceeding 5000 hours, meeting outdoor protection requirements for 25 years.
Case Details
For high salt spray environments, modified epoxy coatings containing glass flakes are selected, achieving a 40% increase in coating density. Salt spray testing (exceeds 3000 hours without blistering) together with anode protection system forms a dual anti-corrosion barrier.
Case Details
Applying heat-reflective ceramic coatings to heat sink areas reduces surface temperatures by 15-20°C. When used with thermal grease, this solution boosts heat dissipation efficiency by 30% while maintaining excellent chemical resistance.
