Dongguan Pioneer Thermal Technology Co., Ltd. is one of the leading manufacturers and suppliers of friction welding liquid cold plate in China. Please feel free to buy customized friction welding liquid cold plate made in China here from our factory. Welcome to contact us for quotation and free sample.
Product Description
Friction welding liquid cold plate is manufactured by friction stir welding, seamlessly joining the cover plate and base to eliminate leakage risks of traditional welding. Optimized internal flow channels enable efficient heat removal via circulating coolant, featuring high structural strength and pressure resistance for energy storage and industrial power supplies.
Manufacturing Process
FSW Friction Stir Welding Technology
Precision CNC Channel Milling
6061 / 6063 aluminum blanks are milled with customized serpentine, straight or maze internal flow channels according to thermal load demands. Precise depth & dimensional control ensures uniform coolant flow and maximum contact heat transfer area.
Solid-State Friction Stir Welding Sealing
No melting, no filler metal. High-speed rotating tool generates frictional heat to plasticize aluminum edges, permanently bonding two plates into one sealed body. Eliminates weak solder joints common in brazed cold plates.
Integrated Nozzle Machining & Tapping
Inlet/outlet pipe stubs are machined as one-piece structure; front surface pre-drilled & tapped holes for tight mounting with IGBT, GPU, battery modules and power components.
Surface Finishing & Strict Pressure Testing
Surface options: Mill finish, clear anodizing for corrosion resistance. Every cold plate undergoes 100% air pressure leak testing and hydraulic pressure endurance test before shipment.
Advantages
Zero Leakage Risk, Superior Pressure Resistance
FSW forms a continuous, full-depth metallurgical bond. Withstands working pressure up to 1.6–2.5 MPa, far stronger than vacuum brazed plates prone to tiny pinhole leaks at solder seams. Ideal for 24/7 continuous heavy-load operation.
Higher Thermal Conductivity & Uniform Heat Transfer
No low-conductivity solder layer between plates. Pure aluminum contact across the entire plate delivers faster, more even heat spreading, reducing hotspots on high-power chips and modules.
Excellent Mechanical Durability & Vibration Resistance
Solid weld joint resists thermal cycling fatigue, shock and vibration. Perfect for mobile applications like electric vehicles, rail transit and mobile laser equipment where temperature swings and movement occur frequently.
Wide Material Compatibility & Custom Flexibility
Standard grade: 6061, 6063 aluminum. Support copper FSW cold plates for ultra-high heat flux scenarios. Custom size, channel layout, nozzle position, hole pattern fully supported for OEM/ODM.
Long Service Lifespan, Low Maintenance Cost
No aging solder joints to fail over years of thermal expansion/contraction. Lower long-term replacement and downtime costs compared to conventional brazed cooling plates.
Applications
New Energy Electric Vehicles
EV battery pack cooling plates, motor controller, OBC onboard charger, SiC IGBT power module heat dissipation.
01
AI Data Center & High-Performance Computing
A100/H100 GPU liquid cooling, server rack cooling, AI computing cluster, crypto mining rig water cooling substrates.
02
Power Electronics & Energy Storage
Photovoltaic inverter, energy storage PCS, industrial frequency converter, high-voltage power supply, UPS system IGBT cooling.
03
Laser & Precision Industrial Equipment
Fiber laser, semiconductor laser source, RF power supply, vacuum coating equipment temperature control.
04
Rail Transit & Marine Power Systems
Train traction converter, ship power control unit, heavy-duty industrial drive cooling.
05
Technical Specifications
|
Item |
Standard Parameter |
Custom Options |
|
Base Material |
6061-T6/6063 Aluminum Alloy |
Copper, customized aluminum alloys |
|
Welding Method |
Friction Stir Welding (FSW) |
Vacuum brazing available as secondary option |
|
Working Pressure |
1.0–2.0 MPa |
Max 2.5 MPa reinforced design |
|
Surface Treatment |
Mill bright finish, clear hard anodize |
Black anodize, passivation |
|
Tolerance |
±0.02mm flatness, ±0.01mm CNC dimensional |
Ultra-precision tolerance for semiconductor grade |
|
Coolant Medium |
Deionized water, ethylene glycol mixture |
Special anti-corrosion fluid compatible |
Why Choose Our Factory as Your FSW Cold Plate Supplier
1. In-House Full Production Line
CNC milling, FSW welding, precision tapping, pressure testing, surface coating – one-stop manufacturing without outsourced processes.
2. Professional Thermal Engineering Team
We assist with channel layout simulation to optimize cooling performance based on your wattage and footprint.
3. Low MOQ Support
Sample orders for prototype testing, mass production capacity for large-scale EV/data center projects.
4. Global Export Experience
Packaged for sea/air shipment, supports Incoterms FOB, CIF, DDP for North America, EU, Southeast Asia market.
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