挤压散热器 是最受欢迎的散热器类型之一。与其他散热器技术相比,它们易于批量制造、经济且在最终产品之前进行二次加工的次数更少。这就是为什么挤出工艺如此广泛地用于其他行业,如窗框和门框、管道和管材,以及意大利面和炸薯条等食品。挤出很简单,在热管理行业,我们很容易利用这项技术。
铝挤压机械图由 Aluminum Extruders Council 提供
Aluminum Extruded Heat Sink Die Example Courtesy of Aluminum Extrusion World
Engineers carefully design extrusion dies so they produce the required shape, but can still withstand the pressure of the aluminum billet being pressed against it without breaking. This is especially true for heat sink dies since there are lots of fingers for the fin gaps which could break off from the die. Too much aluminum pressing on long thin fingers will easily snap them on and destroy the die.
查看我们的 铝挤压型材、风冷 挤压散热器或专业 Max Clip™ 挤压件。或在下面联系我们!
挤压件和挤压散热器:它们是如何制造的
Remember playing with Play Dough as a kid? Putting a giant handful into what looked like a garlic press and pulling the lever down? The pressure put on the dough squeezed out this crazy shape in the front, making a long strand with that same shape cross section. This childhood activity is similar to the process we use for extruded heat sinks. We use aluminum instead of dough; a manual level is replaced by a multi-ton hydraulic press (way more pressure than any arm could make, child or adult); and an extrusion die takes the place of the plastic bit with crazy shapes.
在压力下
在铝挤压过程中,坯料形式的金属被加热到足够软的程度,它可以挤压穿过挤压模具,但在熔化的地方不会太软,只会滴出。液压机将柱塞推入坯料中,迫使铝通过精心设计的挤压模具。该模具是长挤压将具有的横截面或 铝挤压轮廓 。
最后冲刺
铝被挤出后,它被拉到跳动台上,在那里被拉直并冷却。首次制造时,这些棒材可以长达数百英尺。为了便于运输和制造,然后将大长度切割成更易于管理的长度,通常约为 8 英尺。从原始棒材到挤压散热器
然后,这些铝型材从这里被切割成它们将要使用的应用的长度。任何类型的加工、孔或其他特征都被加工到挤压件中,以根据需要对其进行定制。这也是在进行精加工(如阳极氧化或喷漆)以完成散热器时发生的。