Hardware heat sink reconstruction under liquid-cooled penetration of AI server: cold plate, microchannel and two-phase flow
Core outline:
Introduction: The 140kW cabinet is forced to be liquid-cooled, but the cold plate is still a precision hardware
Topology optimization of cold plate heat sinks: serpentine channels vs parallel microchannels
Hydraulic Diameter and Pressure Drop-Thermal Resistance Tradeoff of Microchannel Heat Sink
Two-phase cold plate: the use of refrigerant boiling latent heat, evaporation section design points
The role of heat sinks in submerged liquid cooling: increasing boiling core density
Manufacturing challenges: Vacuum brazing and ultrasonic cleaning of microchannel cold plates
Market data: Under the liquid-cooled penetration rate of 33%, the demand for high-precision copper heat sinks has surged
BQUQ is a professional metal heat sink manufacturer, please send us drawings, and our company will quote you within 12 hours.
Frequently Asked Questions
What is the typical precision tolerance for your CNC-machined cold plates?
Our CNC machining achieves precision of ±0.005mm, which is critical for microchannel cold plates used in liquid-cooled cabinets. This tolerance ensures proper sealing and thermal performance in high-heat applications like 140kW cabinets.
Can you manufacture both serpentine and parallel microchannel cold plate designs?
Yes, we produce both serpentine and parallel microchannel heat sinks. The choice depends on your thermal and pressure drop requirements—serpentine channels offer higher heat transfer but greater pressure drop, while parallel microchannels reduce pressure drop at the cost of slightly higher thermal resistance.
How do you handle vacuum brazing and cleaning for microchannel cold plates?
We use vacuum brazing to ensure void-free joints in copper microchannels, followed by ultrasonic cleaning to remove flux residues and particles. This process is essential for two-phase cold plates and submerged liquid cooling applications to maintain boiling performance and prevent clogging.
What is your typical lead time for quoting a custom heat sink design?
We provide a quotation within 12 hours after receiving your drawings. For standard copper or aluminum heat sinks, production lead time is typically 2-3 weeks, depending on complexity and order volume. Contact us with your CAD files for a precise timeline.
