Method of Die Casting New Heat Sink

Abstract

The invention discloses a method for die-casting a new type of heat sink, a method for die-casting a new type of heat sink, the characteristic steps of which include: (1) extruding, casting or CNC forming a thin plate of iron, aluminum or copper The bottom of the fin is a groove or the fin is provided with holes; (2) Then assemble the multiple fins on the fixture one by one, place them in the oven for heating, and heat to a certain temperature; (3) Use a mechanical arm to fix multiple heated fins in the die-casting mold; (4) Fill the metal solution into the gaps in the grooves of the fins or the holes on the fins through the die-casting molding technology, so that The metal solution wraps the fins to form a complete combination, which is a shot-wrapped heat sink. The invention satisfies the high heat dissipation requirements of communication products, improves the service life of the radiator, can be produced in large quantities, and reduces the demand for materials.

Description

technical field [0001] The invention belongs to the field of manufacturing methods for heat sinks in the electronic communication industry, and in particular relates to a method for die-casting new heat sinks. Background technique [0002] At present, the forming technologies of heat sinks in the electronic communication industry mainly include cutting processing, precision die-casting direct forming, extrusion production and other technologies. Cutting processing, using metal block processing and forming, due to the large amount of processing, long processing time, and high cost, it is not suitable for mass production and only sample production; precision die-casting direct molding is currently widely used, but due to the limitations of die-casting technology itself Restrictions, it is difficult to achieve a heat sink with a tooth height greater than 50mm, and the heat sink needs a demoulding angle, the thickness of the bottom limits the number of heat sinks, the overall pr...

AI Technical Summary

Problems solved by technology

Cutting processing, using metal block processing and forming, due to the large amount of processing, long processing time, and high cost, it is not suitable for mass production and only sample production; precision die-casting direct molding is currently widely used, but due to the limitations of die-casting technology itself Restrictions, it is difficult to achieve a heat sink with a tooth height greater than 50mm, and the heat sink needs a demoulding angle, the thickness of the bottom limits the number of heat sinks, the overall product is heavy, the heat dissipation effect is not good, and it cannot meet the parts with high heat dissipation requirements; Although extrusion production can produce high-quality heat sinks without demoulding angles, for the complex structure on the back, a large margin needs to be reserved, the processing time is longer, and the material cost is higher.

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