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Product Description Technical information Engineering difficulty

Aluminum heat sink used in Set Top BOX

1. Material: Aluminum
2. Surface treatment: None
3. Process:
Progressive Stamping

1. Material thickness is only 0.8mm, but concave depth is 55mm, very easy to break in deep drawing processes;
2. Convex Position is too close to edge, easy to break.

Aluminum extrusion heatsink used in electronic equipment

1. Material: Aluminum
2. Surface treatment: None
3. Process:
Extrusion --- Cutting ----Drilling holes

Edge between each fin is narrow as 2mm.

Aluminum folded plate heatsink used in air conditioner

1. Material: Aluminum
2. Surface treatment: None
3. Process:
Stamping --- Folded ---- Degreasing

Fin was folded, can stretch out and draw back.

Heat sink radiator used in security system

1. Material: Aluminum
2. Surface treatment: None
3. Process:
Stamping --- Drilling holes ---- Tapped with thread holes --- Assembled with pin

Assemble with Pin tightly.

Heatsink case enclosure

1. Material: Aluminum
2. Surface treatment:
Brushed raw material without surface treatment.
3. Process:
Stamping

Nice surface without any scratch;
Pre-brushed on raw material, be paralleled after punched.

Aluminum extrusion heat sink

1. Material: Aluminum
2. Surface treatment:
None
3. Process:
Extrusion --- Riveting

Very low cost

Aluminum plate heatsink

1. Material: Aluminum
2. Surface treatment:
None
3. Process:
Stamping

Two wings are up warped in exact angle.

Stamping heatsink

1. Material: Aluminum
2. Surface treatment:
Sand spraying and anodizing
3. Process:
Stamping --- Screw on it --- Sand spraying and anodizing

Nice surface.
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