Integrated Sandwich Mount (Powertrain Grade)
Product Details
Traditional vibration damping components often rely on mechanical interlocking between rubber and metal, which is prone to micro-cracks under high-frequency shear stress above 1,000 Hz. Yokey’s advanced Sandwich Mount solution utilizes a thermal vulcanization process that facilitates chemical covalent bonding between rubber macromolecular chains and silane coupling agents on the metal surface. This represents a technical leap from "physical nesting" to "atomic-level interpenetration."
Key Features
Atomic-Level Chemical Covalent Bonding: The thermal vulcanization process ensures a chemical covalent fusion at the rubber-metal interface. In ASTM D429 destructive testing, the failure mode occurs 100% within the rubber body (cohesive failure) rather than at the bonding interface.
Innovative Hourglass Profile Design: The specialized "hourglass" profile ensures shear stress is uniformly distributed across the entire cross-section. This effectively suppresses high-frequency resonance above 1,000 Hz and extends dynamic fatigue life by more than 300%.
Optimized Damping Factor (Tan Delta > 0.12): By optimizing the carbon black reinforcement system of peroxide-cured EPDM, we precisely regulate the damping loss factor. This ensures high energy dissipation efficiency within the primary frequency range of 50 Hz to 83.3 Hz for pump units.
Precision Dynamic-to-Static Stiffness Ratio (K-ratio < 1.35): The K-ratio is strictly controlled within 1.35. This prevents system-level resonance caused by stiffness drift during variable-frequency operation, ensuring the absolute safety of fluid interfaces.
Vacuum Pulse Molding Technology: Utilizing a -0.098 MPa vacuum pulse molding logic, we eliminate invisible peeling risks at the edges of metal plates, ensuring structural stability under extreme operating conditions.
Applications
Cooling Distribution Units (CDU): Provides high-frequency vibration isolation for core liquid cooling units, preventing mechanical excitation from transmitting to the interior of server racks.
Liquid Cooling Pumps: Specifically designed for canned motor pumps operating at 3,000-5,000 RPM, offering superior dynamic fatigue resistance and long-term operational stability.
GPU Clusters and Server Racks: Suppresses high-frequency micro-vibrations to protect micro-channel cold plates from fatigue fracture, thereby extending the service life of computing units.
Precision Industrial Machinery: Ideal for vibration-sensitive high-precision power equipment that requires continuous, uninterrupted operation.
Technical Capabilities & Custom Development
SA 2.5 Surface Anchoring: Utilizing 80-mesh white corundum automatic shot blasting technology, we create perfect microscopic anchoring points (Ra 6.3μm - 12.5μm) on SUS316L stainless steel surfaces, providing the physical foundation for chemical bonding.
12-Micron Precision Film Control: The adhesive dry film thickness is strictly locked between 10-15 microns. Excessive thickness leads to brittle layer failure, while insufficient thickness fails to cover microscopic burrs.
Custom Material Selection: We offer customized elastomer formulations for various media and temperature control requirements, including peroxide EPDM, FKM, and low-damping silicone systems.
Collaborative Engineering: Leveraging Dynamic Mechanical Analysis (DMA) and long-term reliability simulations, we provide customers with full-lifecycle support from conceptual prototyping to high-volume stable delivery.
Conclusion
In the lifecycle of a liquid cooling pump unit, selecting a high-certainty integrated solution is a critical "asset risk hedging" strategy. Yokey’s Integrated Sandwich Mount provides a superior "Asset Insurance ROI," helping data centers achieve true zero-failure operation.
