The core advantage lies in its extreme machining accuracy, with cavity tolerance controlled at ±0.005mm to ensure uniform fin thickness of the extruded heat sink. The DLC diamond-like coating reduces the surface friction coefficient to 0.1, greatly improving demolding efficiency and avoiding deformation or damage of fins during extrusion. The cavity flow channel is optimized for the dense fin structure of the heat sink, reducing material flow resistance and improving extrusion stability. It is suitable for 300-600 ton precision extrusion equipment, with a service life of more than 70,000 strokes, meeting the automotive electronic grade quality requirements and passing the IATF 16949 certification.
The die material is S7 cold work tool steel, with Rockwell hardness of 50-54 HRC, the cavity milling machining accuracy is ±0.005mm, the surface is coated with DLC diamond-like coating with a thickness of 2-3μm, suitable for 300-600 ton precision horizontal extrusion presses, the normal extrusion speed is 5-12 meters per minute, the weight of a single set of molds is 300-500 kg, the extruded profile width ranges from 10-80mm, the fin thickness ranges from 0.3-3.0mm, the fin spacing ranges from 1.5-5.0mm, equipped with external auxiliary cooling device with compressed air, compatible with 1050, 1060 pure aluminum and 6063 aluminum alloys, passed the IATF 16949 automotive industry quality management certification.
It is mainly used in consumer electronics heat dissipation component manufacturers and automotive electronic supply chain factories, used to produce CPU heat sinks, laptop heat dissipation plates, LED indoor and outdoor lamp heat dissipation substrates, new energy vehicle power battery heat dissipation modules and other products. It can be matched with extrusion production lines of well-known brands such as FANUC and Bosch, and can customize exclusive cavities according to the customer's heat sink fin design, supporting the extrusion production of multiple special-shaped heat dissipation profiles, helping enterprises improve the production efficiency and product yield of heat dissipation components.
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