This cyclic servo hot and cold press is engineered for accurate lamination and seal curing of flow battery stacks. Featuring three integrated core modules—servo precision pressure control, a high-temperature curing system, and a rapid cooling system—the press performs the full cycle of “heat pressing for curing → pressure‑holding cooling for setting” either on a single station or via automatic station switching. It effectively resolves problems of uneven contact resistance and electrolyte leakage inside the stack.
PRODUCT DESCRIPTION
1. Full Closed-Loop Servo Pressure Control
●Replaces traditional hydraulic proportional valves with servo motor drive + high-precision ball screw.
●Pressure control accuracy up to ±1% F.S. (full scale); displacement repeatability positioning accuracy ±0.01 mm.
●Solves leakage issues caused by uneven pressure distribution in large-area flow battery stacks (e.g., 1 MW-class stacks).
2. Integrated Hot & Cold Cycling in One Machine
●Hot pressing stage: Equipped with thermal oil or electrically heated platens, temperature range from room temperature to 200°C, controllable for curing sealants around the stack (e.g., fluororubber, EPDM adhesives).
●Cold pressing stage: Integrated water cooling or compressor refrigeration with adjustable cooling rate, enabling rapid setting of heat-cured components and preventing spring-back.
●Cycle logic: Supports fully automatic programs: hot pre‑pressing → hot curing → automatic transfer to cold pressing → pressure‑holding cooling.
3. Large-Area Uniform Temperature Control
●Platen surface temperature uniformity ≤ ±2°C (for plates sized 1–2 m²).
●Zoned temperature control design adapts to flow battery electrode frames of different widths.
4. Process Data Traceability
●Equipped with industrial-grade HMI and PLC, providing real-time recording and export of pressure–time, temperature–time, and displacement–time curves.
●Supports MES system integration, meeting quality traceability requirements for cell and stack manufacturing.
5. High-Rigidity Anti-Deflection Structure
Machine frame constructed from integral steel plates or large castings, optimized via finite element analysis (FEA), ensuring minimal deformation under hundreds of tons of force – protecting fragile graphite bipolar plates or carbon felt electrodes.
1. Sealant Curing
Heat curing of adhesive injected between the electrode frame and membrane in flow batteries.
2. Stack Assembly
Low-pressure lamination of stacked bipolar plates, electrode frames, carbon felt, and ion exchange membranes.
3. Hot-Melt Bonding
Welding and setting of thermoplastic frame materials.
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