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Technical Articles

Technical Articles

Metal seals Sealing solutions for extreme conditions

2026-08-31

From Compression to Springback: The Real Mechanics Behind Metal Seal Springback

Metal seal springback is the elastic recovery after compression that holds residual contact load. Seating, plastic set, and leak stability follow that chain.

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2026-08-24

When Spring Energized Metal Seals Beat a Hollow Metal O-Ring

Spring energized metal seals beat a hollow metal O-ring when residual load must survive cycling and flange move. Selection by recovery, seating load, pressure.

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2026-08-15

Achieving 10⁻¹² Pa·m³/s Leak Rates: Semiconductor Leak Rate Metal Seal Design for Fluorine and Ammonia Environments

Specify a 10⁻¹² Pa·m³/s semiconductor leak rate metal seal as a helium joint spec for fluorine and ammonia service, not a catalog rating. Groove and method decide it.

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2026-07-21

Designing Metal C-Rings to Survive 400°C and 40MPa in Hot Runner Systems

Learn how to design metal C-rings for hot runner systems operating at 400°C and 40 MPa, covering alloys, coatings, groove design, preload, and inspection.

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2026-05-25

Sealing Liquid Helium: Low-Preload Racetrack Metal C-Rings for MRI and CT Scanner Hardware

Learn how low-preload racetrack Metal C-Rings help seal liquid helium systems in MRI, CT, and cryogenic medical hardware.

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2026-05-18

Why Metal Seals Leak: 7 Failure Modes Engineers Miss in the Groove, Flange, and Load Path

Metal-seal leaks usually come from groove geometry, flange finish, bolt load, plating, springback, thermal shift, or install damage. Seven modes engineers miss.

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2026-04-15

Blade Type Spring-Energized Seals for Semiconductor CVD and Etch Equipment

Blade type spring-energized metal seals help semiconductor CVD and etch equipment achieve lower seating load, cleaner all-metal sealing, and reliable vacuum performance.

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2026-04-06

Zero-Preload Metal Seals for Fusion and Accelerator Systems: Why Controlled Seating Load Matters in UHV Hardware

Learn why zero-preload and low-seating-load metal seals matter in fusion and accelerator systems. Explore how controlled-load metallic sealing helps protect precision flanges, support ultra-high vacuum, and reduce assembly risk in RF,

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2026-03-31

RFQ Cavity Sealing: Overcoming Ultra-High Vacuum and RF Electrical Continuity Challenges with Advanced Metal Seals

RFQ cavity sealing is a UHV leak and RF-continuity problem. Metal seals used on accelerator cavities, including spring-energized C-ring options. From Sonkit.

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