Our company has gathered a group of technicians and workers who have served in the Water Cold Plate Heat Sink, AL Extrusion Heat Sink, CPU Heat Sink Design industry for many years. The company always believes in the tenet of "Quality establishes the market, reputation strives for users, and technology seeks development". Welcome new and old customers to patronize and purchase! Professional ethics is the most basic code of ethics for our employees, and we expect everyone to strictly adhere to it and do their best. With the principle of insisting on technological innovation, quality and service, we realize our commitment with high quality products and professional services.
Liquid cooling plate
Principle of liquid cooling: In a closed liquid circulation device, the liquid is flowed by the pump. During the liquid flowing on the heat source, the heat was taken by the liquid. Finally, the liquid is returned to the pump and circulate again and again.
Due to high cooling performance, the thermal conductivity is 20 times than air cooling, can solve hundreds or thousands of KW heat problems. Wildly used in Laser, Military, Medical, Power electronic, Industrial equipment and etc.
Liquid cooling plate design case
Design input
Required cooling capacity per plate: 1.6kW
Supply/Return water temperature: 8/13 deg.C
Plate surface temperature: 20 deg.C
Max. Surface temperature: 40 deg.C
Ambient temperature: 24 deg.C to 26 deg.C
Max. Size of cold plate: 940mm(L) x 145mm(W)
Maximum thickness of plate: 15mm
DN of copper tube: 9.5mm with 7.1mm I.D.
Water flow velocity: 2.5m/s (max)
Number of holes: 14 (M6 x 25mm countersunk screws as shown below in red and blue)
Heat source

Thermal Simulation
Solution: liquid cold plate
Liquid cold plate base size: 940*145*12.7mm, material: AL6061
Copper tube size: diameter 9.5mm, thickness=1.27mm, material: C1100

Simulation model (ICEPAK)

Pressure Drop: 1632Pa

Max Velocity: 1.97m/s

Heat sink Temperature
△T: 10.6044℃
Conclusion
Type | Ta(℃) | Tb-max(℃) | Delta T | Flow | Resistance(℃/W) |
AL extrusion | 25.0 | 35.6044 | 10.6044 | 1.97m/s | 0.0066 |
Ta: Environment temperature
With this design, the simulation result of solution can meet your requirements.
Drawing design


Epoxy bonding
Epoxy features:
• Excellent Thermal Conductivity
• Superior Adhesion
• Low Viscosity allows quick self leveling
Process


Main points
Solution temperature:50+/5℃ Soak around 3 min
Liquid PH: 6~8

Solution pond

Soak around 3 min
Stoppers to avert chemical solution getting into the tube

Apply 70-3812 high thermal epoxy, measure the weight: after applying - before applying=0.2 +/-1g


Apply Epoxy again for better bonding result, measure by weight: after applied- before applied=1~3g fill up all cavities formed after stamping.

Auto dispenser to apply Epoxy

Fill up all cavities formed after stamping
Fly cut for better flatness
Overall surface:<0.1mm for 100x100mm area
Heat source contact surface:<0.05mm for 100x100mm area

Ultrasonic cleaning again for cosmetic purpose
IR sensor to monitor welding temperature.
Welding power: connector 1410+/- 10w
Pipe: 1200 +/- 10w

Position sensor to the welding joint
Sensor temperature:
Connector: 200~650
Pipe: 200~580
Time for the welding object to reach constant temperature: 2.5min

HF induction welding machine
Quality inspection test
Our liquid cooled plates will be inspected before delivery to customers to ensure the quality of the products. We will ensure the quality of our products through leak testing and pressure testing.
Leak testing 1:High pressure N2 to check possible leakage

Hook on USON tester

Supply N2 to USON at 150+/-1 PSI
Hold for 5min
Criterion: pressure drop <= 1%
If fails, use He tester to locate leakage points
Leak testing 2: Sort out leakage location by high sensitivity He

He tester
Supply He to tester at 25+/- 1 PSI
Criterion: leakage<9.9*10-5Mbar.I/s

Sniffer to detect
Mark leakage area in red if any
Pressure testing: Low pressure N2 to check possible leakage

Hook on USON tester

Auto detection/ judgement per requirement
Supply N2 to USON at 30+/-1 PSI
Hold for 24 hours
Criterion: pressure drop <=5%
If fails, use He tester to locate leakage point
The company is committed to building a most powerful, new technology integrated industrialized Factory Price Customization Plate Heat Exchanger Gasket Plate for Quenching Liquid Cooling product research and development, manufacturing, project construction industrial base, as well as a new technology application center such as a space grid frame structure system. Aiming at the development direction of Factory Price Customization Plate Heat Exchanger Gasket Plate for Quenching Liquid Cooling industrialization, adhere to the innovative road of combining production, learning and research. We have established long-term cooperative relations with many enterprises by virtue of excellent quality, reasonable price and complete after-sales service. All employees of the company have advanced and agile thinking, rigorous and realistic style, and the spirit of innovation, constantly pushing the company to perfection!
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