Color Anodized Aluminum Heat Sink

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There are many types of heat sinks on the market today, the main heat sink types include copper heat sinks, steel heat sinks, die casting heat sinks, and aluminum extrusion heat sinks, and heat sinks are made of different materials will have their own different characteristics. Let's talk about the advantages of aluminum extruded heat sinks.

1.The aluminum has good thermal conductivity, so the aluminum profile extrusion heat sink has the advantages of rapid heating, energy saving and material saving.;

2.Corrosion resistance, due to the corrosion resistance of the raw material aluminum profile, the aluminum extruded heat sink will not be oxidized and corroded easily, even in an open environment, there is no need to worry about it being corroded by oxygen;

3. Aluminum extruded heat sink can be anodized in many colors . Compared with copper heat sinks, aluminum extrusion heat sinks can be anodized in black, silver, yellow, etc which can offer a beautiful appearance in the system. 

4, Aluminum extruded heat sink is much more cost-efficient, which is the main reason it's widely used in many industries.

The definition of aluminum extrusion process

  Aluminum extrusion is to apply a strong pressure to the aluminum billet placed in the mold cavity (or extrusion cylinder), forcing the aluminum billet to produce directional plastic deformation, extruding from the hole of the extrusion die. A plastic processing method for parts or semi-finished products with desired cross-sectional shape, size and certain mechanical properties.

The principle of aluminum extrusion is similar to squeezing toothpaste.

Extrusion tooloing die

what's the extrusion die?

Extrusion dies are basically thick circular steel discs containing one or more openings to form the desired profile. They are usually made of H-13 die steel and heat treated to withstand the pressure and heat of hot aluminum as it passes through the die. Although aluminum appears to be a very soft metal, it takes a lot of pressure to push a solid aluminum ingot (blank) through a thin, porous aluminum extrusion die to form the desired shape.

The benefits of aluminum extrtusion process

1) Durability

The corrosion resistance, corrosion resistance and wearing resistance of aluminum are one of its most notable advantages. Aluminum naturally rusts and resists corrosion without additional treatment. This is due to the presence of a thin, naturally formed protective film of aluminum oxide on its surface. By anodizing, its corrosion resistance becomes stronger. For example, in an outdoor environment, 25 micron anodization can be performed, which both enhances corrosion resistance and improves surface finish. Also the color can be customized.

2) light and strong

Aluminum is over 33% lighter than steel while retaining most of its strength. The tensile strength range of most aluminum alloys is about 70-700 MPa, while the density is two-thirds less than that of steel.

Product design engineers do not need to worry about the strength of aluminum extrusion parts, which can be used as structural parts in the construction industry and the automotive industry, and are the best substitute for other metal materials.

3) Good thermal conductivity

Aluminum conducts heat very close to copper, but it is much lighter.

Aluminum is an excellent conductor of heat, and aluminum extrusions are contoured to maximize heat transfer surface area and thermal pathways. A typical example is a computer CPU cooler, where aluminum is used to remove heat from the CPU.

4) Beautiful appearance

Extruded aluminum heat sinks can be painted, plated, polished, and anodized, giving engineers a wider choice of appearance color than other materials.

Product specifications

Applications

Our capacity

Why choose us

1, Sinda thermal has been devoted in thermal area over 7 years, we are an excellent and experienced thermal expert;

2, Sinda Thermal has been a thermal partner for 2000 customers in the global market, we have a very good reputation;

3, We have a tremendous engineering team to provide professional service and thermal solutions;

4, We have a mature manufacturing procedure and team to produce the excellent products;

5, Sinda Thermal can offer a very competitive price than some trade companies;

6, We are resourceful to provide the flexible service to meet customer's urgent requirements.

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