A High-Performance Liquid Cooling Heat Dissipation Component

1. Definition and Core Structure

• Substrate: 6061/6063 aluminum alloy (cost-effective), oxygen-free copper (excellent thermal conductivity, high cost);
• Internal flow channels: serpentine / parallel microchannels, embedded copper tubes, with no exposed notches;
• Inlet and outlet water connectors (G1/4, NPT, etc.), sealing structure (FSW solder-free sealing to prevent leakage);
• Surface treatment: anodizing (corrosion protection), conductive oxidation, nickel / tin plating (to meet different installation requirements).

2. Working Principle

3. Mainstream Manufacturing Processes

• Friction Stir Welding (FSW, most widely used): Pre-set flow channel space between two plates; solid-state welding achieved through thermo‑mechanical effects generated by a high-speed rotating stirring tool. It features no porosity or cracks, no solder required, minimal deformation, and is suitable for large‑size, high‑load fiber optic water cooling plates.
• Embedded copper tube + vacuum brazing: Pre-fabricated copper tubes embedded into blind holes of the substrate, with gaps filled via vacuum brazing to form seamless flow channels.
• Diffusion bonding: Metallic atomic bonding achieved under high temperature and pressure, suitable for ultra‑thin and ultra‑precision flow channels but at relatively high cost.

4. Performance Advantages and Comparison (vs. Traditional Milled Groove Water Cooling Plates)

5. Key Technical Parameters

• Dimensions: Customized according to fiber laser modules (common sizes: 300×200 mm, 400×300 mm, etc.);
• Flow channel parameters: inner diameter 2–6 mm, flow velocity 1–3 m/s, pressure drop ≤0.3 MPa;
• Heat dissipation capacity: single cooling plate supports 500 W–10 kW heat sources;
• Operating pressure / temperature: 0.5–1.0 MPa, -20℃–80℃;
• Materials: aluminum alloy (thermal conductivity 200–220 W/(m·K)), copper (380–400 W/(m·K));
• Sealing test: helium leak detection (leak rate ≤1×10⁻⁹ mbar·L/s) to ensure no leakage during long-term operation.

6. Typical Application Scenarios

• High-power fiber lasers: heat dissipation for pump modules, beam combiners, Q-drives in 1 kW–10 kW industrial cutting/welding lasers;
• Optical communication equipment: high-speed optical modules in data centers, coherent communication equipment, EDFA amplifiers;
• Medical laser equipment: fiber laser beauty devices, dental laser equipment;
• Semiconductor manufacturing: fiber transmission systems in laser annealing and laser dicing equipment.

7. Selection and Design Guidelines

• Heat source distribution: serpentine flow channels for uniform distribution, parallel flow channels for multiple heat source points;
• Flow rate and pressure: ensure flow velocity ≥1 m/s to avoid local overheating;
• Material selection: aluminum alloy for general scenarios, copper for ultra-high heat flux density;
• Interface and compatibility: confirm specifications and positions of water inlet/outlet connectors to match existing chillers / CDUs;
• Environmental requirements: enhanced surface corrosion protection (e.g., hard anodizing) for outdoor / humid environments;
• Compliance: meet CE and RoHS; pressure testing required for high-pressure applications.

8. Maintenance Recommendations

• Replace coolant regularly (every 6–12 months) to prevent scaling;
• Conduct pressure testing and helium leak detection annually to check for leaks;
• Keep the cooling plate surface clean to avoid oil contamination impairing thermal conductivity;
• Avoid severe impact and vibration to prevent flow channel deformation.

Uchi was established in 2006 in Dongguan, China. 

After years of development, Uchi has become a large scale hi-tech enterprise that specialized in development and production of complete series of MOV,PTC, NTC series, PPTC series, Fuse(ALL TYPE),Resistor、integrated circuit 、 Capacitor, surge protector and protective devices of lightning protection products. It ranks front in the industry and has heartquarter in Hong Kong. With its excellent technology and quality products, Uchi has won wide recognition of overseas customers. Saini Impex PVT.LTD is our authorized sole distributor in india .

China's leading enterprise of circuit protection components​

Our strength ：

A large number of product series in our factory have passed the certification of various international standards




Factory Tour​ ：

Advanced equipment, lean production

Uchi boasts with a production base that covers an area of nearly 15000 square meters.
 

We successively imported high-tech fully automated production equipments and high precision testing instruments and have put into production to realize the automation, large scale and standardization.

Uchi has a galaxy of hi-tech talent teams headed up by national class experts to engage in the work of product development, product quality control, sales andservice technical support, etc., and has successively obtained tens of certificates of appearance patents, utility patents and inventions.
 

To guarantee the quality, we successfully passed the certification of ISO9001:2008 quality management system, scientific and efficient managing mode to carry out lean production and form scientific and efficient quality control system. The products are certified with UL, CUL, TUV, VDE, CSA and SGS, RACH 73 environmentally friendly testing certifications.

Exquisite quality at customers' favor

Uchi is an export membership of Alibaba with free import and export rights. It is appraised as Guangdong Famous Star Enterprise and Dongguan Private Enterprise. Our products have doubled and redoubled to provide more kinds and high quality and reliable products and service. Our products mainly consist of: 

Metal Oxide Varistor
DIP Varistor & SMD Varistor
Thermally Protected Varistor

DC-Link Capacitor for New energy vehicles supporting the HEVEV

Automotive Fuse Links for EV Plugin HEV FCEV
PTC Thermistor

NTC Thermistor

PPTC Resettable Fuse

Thermal Fuse

Auto Blade Fuse

Glass Fuses

Metal Film Resistor

Carbon Film Resistor

Cement Resistor

NTC Temperature Sensor

CDS Photoconductive Cell

Our products are widely used in New energy vehicles, home appliance, medical equipment, office equipment, communication equipment, phone battery, electronic calendar, electronic thermometer and temperature controller to cover military telecommunications, IT, automobile and consumer electronic fields.
Cooperation with good faiths to win in the market.
Excellent quality sincere service is the key to the success of Uchi. 

In the future Uchi will still stick to the tenets of "Quality first, customer foremost." "First class quality, first class service and customersatisfaction" to manufacture the high quality, technically advanced and reasonable prices products. We hope to trigger with global partners the revolution in resistor products. We cordially welcome friends from home and abroad to visit us for guidance and cooperation.