理解红外线见

必威bwei网址问题:我正在考虑用红外线处理过程,我关心视觉线性问题。这是什么问题?

大问题 : 大问题 : 大问题! 要理解线视 : 先理解红外线, 基本光能 。 这是可见光下电磁尺度的一部分 。 站在太阳下时, 感知热线能 。 移到阴暗时, 感知线能被阻塞 。 进程加热时, 线视能力是红外能观察部分的能力 。 部件有复杂形状时, 内分基本可屏蔽光能 限制光从“ 看”部分所有表面, 从而产生线视挑战

光能无法见全片, 红外线除平面外不工作吗?理论正确, 因为光看不到角角角但在现实应用中红外线可用于热解甚至复杂焊接

获取红外线复杂部分的好处 热传递物理的另一部分 传导作用巨大必威bwei网址Conduction is transferring thermal energy through direct contact with matter. If you put a metal poker in a fireplace and leave it, the heat will "conduct" up the handle. Most commonly in powder coating, convection heat is used to cure complex shapes. The oven's hot air does not bend around the corners of the part either, but the length of time allows conduction to help the part cure itself. The heat transfers via conduction into the hidden areas to cure anything the hot air cannot easily reach. With infrared, you can accomplish the same result on complex parts, only faster also through conduction. For instance, a gas catalytic oven is typically 3X faster than convection, but a complex weldment can still be cured through the assistance of conduction. With electric infrared, the process can be up to 10X faster than convection cures, however, the speed reduces the time for conduction to play a role as the part is not in the oven long enough.

Another consideration is how are you considering using infrared in your line? In a boost or gel application, it is typically not a major issue. The point of a boost is to accelerate the curing process so that less time in a cure oven is needed. The only way to speed conduction is through higher temperatures so a boost will drive more heat into a part much quicker than the convection oven can. Even if there are line-of-sight restrictions, the point is to accelerate conduction so those issues will typically be resolved in the cure oven. A boost or gel oven, though, still should be designed to ensure infrared energy coverage around the part to limit the line-of-sight issues. The better coverage you have, the less this will be an issue. If you are considering a cure application using infrared, line-of-sight can pose a bigger challenge.如果产品基本平面化,你没有直线挑战,那么解法很容易快速实现。如果部件形状复杂,那么材料处理可能有帮助,如旋转顶端或上层配置部分。如果部件不可移动,则需要传导来同时作用。大约三分之一时间对接后,你仍应能够解析产品对流并可能快速

影响视线的另一考量是红外加热器设计。你会认为热器越热,过程效果越快,对吗?它比那复杂点多一点。不管你对局部点讲多少红外能,真正重要的是吸收多少能量。热器并不总是更好,因为能量更有可能从相向点反射或吸收入波段。红外吸收有机物速率介于中长波长数中(300°F-1500°F)。红外线热源按设计温度/波长释放红外能(温度逆波长)。例如,300°F-1,000°F范围(长波长)的气体催化释放和电红外通常设计为800°F-4,000°F(中短波长)。短波长时,能量反射通常也会上升。 如果能量只部分吸收,则视觉线变差

必威bwei网址底线透视问题必须成为使用红外线加速粉层操作的考量的一部分。为理解它会如何影响您的部件,你应该与有经验的红外炉设计师合作,并让他们在实验室测试。使用炉温测算器,红外能对可能有线透测问题区域的影响可以检测精确结果。有数据,你将知道红外线如何成功嵌入您的线中