Stainless Steel Cans For High Voltage Film Capacitor
This product is a special Stainless Steel Cans for High Voltage Film Capacitor, used to carry the capacitor core group and ensure its long-term stable operation in complex power grid environments. It is not only a physical protective layer, but also a key engineering structural component for the electrical performance, thermal management and sealing reliability of the capacitor.
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Product Introduction
Different from conventional carbon steel or galvanized sheet shells, Stainless Steel Cans for High Voltage Film Capacitor use austenitic stainless steel as the base material and are specially designed for harsh industrial scenarios such as outdoor substations, harmonic control devices, and high-voltage reactive power compensation systems. Products do not rely on coating anti-corrosion, but achieve full life cycle reliability through material essence and structural design.
Material advantages
Zero-pore dense structure
The inherent austenite structure of stainless steel provides a dense surface without pores, which fundamentally eliminates the risk of penetration of epoxy resin potting materials during the high-pressure curing process and avoids the dielectric constant drift caused by moisture absorption for Stainless Steel Can.
Resistance to stress corrosion cracking (SCC)
In power systems, capacitors are often exposed to high humidity, salt spray or slightly acidic environments. The self-healing properties of the passive film of stainless steel ensure that the outer casing will not expand like carbon steel during long-term use.
Low temperature toughness
For capacitors used in cold areas, stainless steel still maintains extremely high toughness in the environment of -40°C to -60°C and will not undergo brittle fracture for Stainless Steel Can for Storage Capacitor.
Production process
We adopt a full-process digital manufacturing system instead of simple sheet metal processing.
Laser cutting+precision rolling
The incision is burr-free, and the butt weld gap after rolling is controlled within 0.3mm for Stainless Steel Can for Storage Capacitor.
01
Automatic argon arc welding (TIG) and plasma welding
The heat-affected zone of the weld is small, the weld bead is dense, all are tested for kerosene leakage and helium mass spectrometry, and the leakage rate is ≤1×10⁻⁷ Pa·m³/s.
02
Internal surface passivation and cleaning
Remove welding scale and oil to avoid contamination of the capacitor insulating oil or solid filling materials for Capacitor Stainless Steel Can.
03
100% full dimensional inspection+pressure leak test
Each piece is individually numbered and the production process data (welding parameters, leak detection curves) can be traced for Stainless Steel Can.
04
Application scenarios
This stainless steel enclosure is more than just a "can," it's the cornerstone of your system's reliability.
New energy inverter (Solar & EV Charging)
Resist the "breathing effect" caused by the temperature difference between outdoor day and night, and prevent internal condensation.
Wind power pitch system
Resist sea salt spray erosion and ensure that no shell corrosion or puncture will occur during the 20-year life cycle for Capacitor stainless steel case.
Medical MRI gradient amplifier
Provides a packaging environment with high cleanliness and no magnetic interference (optional 316L non-magnetic material) for Rail Transit Power Capacitor.
Rail transit traction converter
Withstands continuous vibration and impact, the high fatigue strength of stainless steel ensures mechanical integrity for Capacitor Stainless Steel Can.
We are familiar with international and national standards such as IEC 60871 and GB/T 11024. Our product design fully complies with the access requirements of mainstream global power grids, helping your power equipment to enter the international market without any barriers for Stainless Steel Can for Storage Capacitor.
contact us
We are committed to providing you with a "zero-compromise" packaging foundation through precision Stainless Steel Cans for High Voltage Film Capacitor processing technology. If you are looking for engineering breakthroughs for the long life and high reliability of next-generation high-voltage capacitors, please contact our technical team to obtain detailed specifications.
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