aluminum electronic product heat sink

In the process of extruding aluminum alloy heat sinks for electronic equipment, mastering some key secrets can ensure product quality and production efficiency. Here are some tips for extruding aluminum alloy heat sinks:

1. Material selection and preparation

Selection of high-quality aluminum alloys:

Select aluminum alloys with good thermal conductivity, strength and corrosion resistance, such as 6063, 6061, etc.

Material preparation:

Ensure that the aluminum alloy ingots are free of impurities and defects, and the surface of the ingots is clean.

2. Mold design and maintenance

Mold design:

Design a reasonable mold to ensure that the shape and size of the heat sink meet the requirements and optimize the heat dissipation effect.

Mold design should consider the fluidity and cooling rate of aluminum materials to avoid defects caused by uneven flow.

Mold maintenance:

Regularly check and maintain the mold to prevent mold wear from affecting product quality.

Keep the mold clean and lubricated to ensure a smooth extrusion process.

3. Extrusion process parameter control

Temperature control:

Control the temperature of the extrusion barrel and the mold to keep it within the optimal operating temperature range (generally 450-500°C).

Heat treatment according to different requirements of the material to ensure stable material performance.

Extrusion speed:

Control the extrusion speed to make the aluminum material flow evenly in the mold to prevent cracks and deformation caused by too fast speed.

Extrusion ratio:

Reasonably select the extrusion ratio to make the aluminum material evenly stressed and ensure the mechanical properties and surface quality of the product.

4. Cooling and post-processing

Rapid cooling:

Rapid cooling is performed immediately after extrusion, usually by air cooling or water cooling, to keep the material grains small and improve strength and toughness.

Heat treatment:

Perform appropriate heat treatment (such as solution treatment and aging treatment) according to material and product requirements to improve the mechanical properties and corrosion resistance of aluminum alloy.

Correction and cutting:

The heat sink may be deformed after extrusion, and correction treatment is required to ensure the straightness and dimensional accuracy of the product.

Cut to the required length to ensure that the cut surface is flat and burr-free.

5. Surface treatment

Deoxidation film:

Remove the oxide film on the surface to ensure the effect of subsequent surface treatment.

Anodizing:

Perform anodizing treatment to improve the corrosion resistance and thermal conductivity of the heat sink, and enhance the surface hardness and aesthetics.

6. Quality Control and Inspection

Size and Shape Inspection:

Use precision measuring tools to detect the size and shape of the heat sink to ensure that it meets the design requirements.

Surface Quality Inspection:

Check whether the surface is flat, scratch-free and defect-free to ensure the heat dissipation effect and aesthetics.

Performance Testing:

Test the thermal conductivity and mechanical properties of the finished product to ensure that it meets the use requirements.

7. Safety and Environmental Protection

Safe Operation:

High-temperature operation during the extrusion process requires protection to prevent work-related injuries.

Check the equipment regularly to ensure safe operation.

Environmental Protection Measures:

Waste generated during the extrusion process should be recycled to reduce environmental pollution.

Use environmentally friendly cooling and surface treatment agents to reduce the impact on the environment.

The above tips can effectively improve the production efficiency and product quality of extruded aluminum alloy heat sinks and meet the high requirements of electronic equipment for heat sinks.