Extruded aluminum heat sink
This is widely used in modern heat dissipation in the excellent heat dissipation material, most of the industry uses 6063 T5 high-quality aluminum, its purity can reach more than 98%, its heat conductivity is strong, the density is small, the price is cheap, so it has been favored by major manufacturers. According to the thermal resistance value of Intel and AMD CPU and its heat generation, aluminum extrusion manufacturers develop corresponding molds, heat aluminum ingots to a certain temperature, so that their physical form can be changed, and then come out of the mold to get the various heat sink raw materials we want, and then it can be used for cutting, trenching, grinding, deburring, cleaning, and surface treatment.
Cast aluminium heat sinks
Although the price of aluminum extruded heat sinks is low and the manufacturing cost is low, due to the soft texture of aluminum itself, the ratio of its fin thickness to fin height generally does not exceed 1:18, so the PC manufacturers for the heat dissipation area continues to increase, and the heat dissipation space remains unchanged under the requirements, manufacturers put forward a more suitable scheme, encrypt the fins, so as to increase the number of fins, bend the fins, thereby increasing the heat dissipation area, the aluminum ingot from the solid state to the liquid state through the mold, and then cool it becomes the heat sink we want.
Aluminium cut heat sinks
Although the effect that this aluminum extrusion can not achieve from the heat dissipation area is solved, the precision of the mold directly affects the overall shape and heat dissipation capacity of our heat sink, so more manufacturers begin to think of using precision tools of processing machinery to directly cut the aluminum ingots into the shape we want, so that there will be no deformation in the processing process, and various impurities will not enter the heat sink in the process of aluminum extrusion, which can also maximize our heat dissipation area.
Copper-cut heat sinks
The use of aluminum extruded heat sink for such a long time, no matter how to change our processing technology, it is difficult to meet the growing CPU heat, some manufacturers have to spare no expense in the cost, abandon aluminum and seek copper, because the thermal conductivity of copper is far greater than aluminum, the multiplication of heat conductivity is of great benefit to our heat dissipation; Therefore, the traditional extrusion process can no longer be applied to copper, and has to be processed in this way of cutting.
Aluminum, copper stacked heat sinks
One point is worth our attention, that is, cost and profit are always the ultimate goal pursued by manufacturers, so major manufacturers began to come up with a more optimized plan, the copper and aluminum sheets are made into various shapes of heat sinks we want by folding and pressing, and then connected with the appropriate various heat sink bottom plates by welding, which not only meets our heat dissipation requirements, but also accelerates the progress of our production and makes mass production easier
Copper heatsink
The most perfect solution to this compromise is AVC's pioneering copper embedding technology. This is a harmonious unity of the advantages of fast heat conduction speed, high density and strong heat absorption capacity of copper with the advantages of light density, low price and convenient mass production of traditional aluminum extrusion;
Copper-plated heat sinks
Another solution is that FOXCONN pioneered the use of copper blocks for the part of the contact between the bottom of the heat sink and the CPU, using the characteristics of copper fast heat absorption and strong heat conductivity, and quickly bringing a large amount of heat energy generated by CPU operation to the copper block with nickel plated on the surface, and the copper block and the aluminum extruded heat sink are closely combined with thermal paste, so that a large amount of heat energy can quickly diffuse to the aluminum extruded heat sink and be taken away by the rotation of the fan.
Gear shasink
In today's increasingly demanding heat dissipation, the Japanese have begun to think of using thin, dense heat dissipation fins to fit the heat dissipation base plate with tremendous pressure. This technology can be arbitrarily combined and matched with copper and aluminum fins with copper and aluminum base plates, and also effectively avoids the disadvantages of new thermal resistance caused by the unbalanced thermal conductivity of various soldering pastes in the welding process. This allows customers to have more options and diversity in thermal solutions. However, due to the particularity of its processing, there is still a problem that the cost is too high for mass production.
Fit the heat sink
Heat pipe is a major discovery in the field of heat transfer in recent years, and it is also the main heat dissipation material used in laptop computers and major high-end communication industries. Due to its amazing heat conduction speed and the physics of recycling, it makes it easier to dissipate heat and creates endless possibilities.