一、断桥铝窗是什么
I. What is Broken Bridge Aluminum Window
断桥铝又叫隔热断桥铝型材，隔热铝合金型材，断桥铝合金，断冷桥型材，断桥式铝塑复型材。它比普通的铝合金型材有着更优异的性能。“断桥铝”这个名字中的“桥”是指材料学意义上的“冷热桥”，而“断”字表示动作，也就是“把冷热桥打断”。
Broken bridge aluminium is also known as insulated bridge aluminium profile, insulated aluminium profile, broken bridge aluminium profile, broken bridge aluminium profile, broken bridge aluminium-plastic composite profile. It has more excellent properties than ordinary aluminium alloy profiles. "Bridge" in the name of "Broken Bridge Aluminum" refers to "cold and hot bridge" in the sense of material science, while "broken" means action, that is, "to break the cold and hot bridge".
具体地说，因为铝合金是金属，导热比较快，所以当室内外温度相差很多时，铝合金就可以成为传递热量的一座“桥”，这样的材料做成门窗，它的隔热性能就不佳了。
Specifically, because aluminium alloys are metals, heat conduction is faster, so when the indoor and outdoor temperatures vary a lot, aluminium alloys can become a "bridge" to transfer heat, such materials as doors and windows, its thermal insulation performance is not good.
而断桥铝是将铝合金从中间断开的，它采用硬塑将断开的铝合金连为一体，我们知道塑料导热明显要比金属慢，这样热量就不容易通过整个材料了，材料的隔热性能也就变好了，这就是“断桥铝(合金)”的名字由来。
Broken bridge aluminium is the breaking of aluminium alloy from the middle. It uses hard plastic to connect the broken aluminium alloy into one. We know that the heat conduction of plastic is obviously slower than that of metal, so that heat can not easily pass through the whole material, and the thermal insulation performance of the material will be improved. This is the origin of the name "Broken Bridge Aluminum (Alloy)".