Shape-Memory Coupling, Nitinol Coupling, NiTi Alloy

Shape-Memory Coupling is made from high-performance shape-memory alloy materials like NiTiFe, NiTiNb, etc., and can be used in pressure systems ranging from 13.8 MPa to 55.2 MPa. It is easily installed at low temperatures and can actively and intelligently recover its pre-set shape when warmed to the activation temperature (e.g., ambient temperature or via simple heating), generating a uniform and permanently maintained radial contraction force. This results in an exceptionally reliable full-perimeter seal and a robust lock. Available in a range of sizes and grades, HM's Shape-memory couplings meet the highest standards of quality and reliability for demanding applications.

• Working temperature: -40℃-350℃

Shape-Memory Coupling Chemical Composition

Shape-Memory Coupling Properties

Shape-Memory Coupling Working Principle

Shape-Memory Coupling Key Advantages

• Zero-Leakage Seal: The uniform 360° radial force fundamentally eliminates leakage risks, making it ideal for high-pressure, vacuum, or corrosive fluid systems.
• Vibration & Loosening Resistance: The continuous recovery force effectively compensates for loosening caused by vibration and thermal cycling, far surpassing the performance of traditional clamps or welds.
• Simplified Installation: The diameter expands at low temperatures (e.g., when cooled in dry ice or liquid nitrogen) for easy pipe insertion, and the coupling self-tightens upon warming, drastically reducing installation difficulty and time.
• Lightweight & High-Strength: Achieves connection strength equal to or greater than traditional flanges while significantly reducing system weight.
• Longevity & Maintenance-Free: A monolithic design with no moving parts, offering excellent corrosion and fatigue resistance for a lifelong, maintenance-free critical connection.

Shape-Memory Coupling Applications

• Aerospace: Used in aircraft hydraulic systems, fuel lines, and environmental control systems, providing lightweight, vibration-resistant, and zero-leakage seals to ensure flight safety.
• New Energy Vehicles: Perfectly seals coolant pipes in battery packs, resisting vehicle vibration and thermal shock to prevent coolant leakage and thermal runaway risks.
• Shipbuilding & Offshore Engineering: Applied in shipboard cooling water pipes and subsea oil/gas pipelines, capable of withstanding extreme corrosion and pressure for lifelong, maintenance-free operation.
• High-End Manufacturing & Semiconductor: Connects ultra-high-purity chemical delivery lines and specialty gas systems, ensuring contamination-free and zero-leakage performance to meet the stringent purity requirements of semiconductor processes.
• Petrochemical Industry: Used for sealing flange connections and critical joints in reactors and piping under harsh conditions, resistant to chemical corrosion and rapid temperature changes.
• Medical Equipment: Provides reliable, non-magnetic interference connections for coolant pipes in large medical equipment like MRI and CT scanners, ensuring stable operation.
• Infrastructure Construction: Used for critical connections in building fire protection pipelines and ground-source heat pump systems, offering reliable sealing and superior seismic performance.

Shape-Memory Coupling Packaging

Shape-Memory Coupling will be packaged in custom foam inserts within sturdy wooden crates. This multi-layer protection ensures the ingots are shielded from impacts, vibrations, and environmental changes, enabling them to arrive safely in optimal conditions.

Where to Buy Shape-Memory Coupling in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Titanium products, including Shape-Memory Coupling, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We are a specialized supplier of premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.