“断桥铝”是什么材料？
断桥铝全名断桥隔热铝，简单来说就是两面铝合金中间用硬塑做隔热桥隔断导热功能的一种新型材料，是铝合金门窗的升级改良版。
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“断桥”工艺，最重要的部分就是断桥铝中的隔热条。它的质量好坏，直接决定门窗的能用多久。咱们国家标准规定的进口PA66尼龙（欧式），性比价和使用寿命更高一些。不仅更隔热保温，还能节约20~30%的能源。
用”断桥铝“有哪些好处？
1、有防火、隔热保温的作用，有了隔热条，阻断热量流通，边框用胶条的三密封形式，关闭严密，气密性也比较好。
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2、降低噪音，结构经精心设计，接缝严密，可有效隔离噪声。采用了玻璃钢化的中空玻璃，空气隔声量达到隔音30--40分贝，就算是住在马路边也能有一个安静的居所。
3、断桥铝强度高、不变型、免维护，内框直料采用空心设计、抗风压变形能力强，抗震动效果好。
4、断桥铝多种色彩，极具装饰性。用断桥铝比用木质或者其它铝合金的材料门窗有更多选择。
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买”断桥铝“要注意哪些地方，别被商家坑了
断桥铝对工艺有严格的要求，因此在购买时一定要观察工艺是否达标，具体判断方法有”四看“，大家在买时重点关注这几个地方：
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1、首先看断桥铝的喷码。各种断桥铝都有各自的防伪喷码，是型材厂家喷上去的，而且一般擦不掉。没有的话，一定不要选！
2、接着看断桥铝的表面。好的断桥铝表面光泽度高，很有质感，喷涂的颜色也自然流畅。不好的断桥铝，一是没有光泽度，二是表面粗糙有颗粒感，三是用一段时间后可能掉色，使用寿命也更短。
3、然后再看型材的壁厚和切面。国标规定厚度是1.4 mm以上。有些小厂家用就薄的产品滥竽充数，来降低成本，密封隔音和保温都会打折。切面要看上去厚度适当，角度也很正。如果有弯曲或是扭拧的情况，劣质无疑了。
4、最后看隔热条。一定要是国家标准规定的进口PA66尼龙（欧式），好坏直接影响隔热效果和使用寿命。
当然一个好门窗，除了材料、五金和玻璃等，还是要看整体工艺，总结一句话：找专业厂家生产，符合国标的材料、五金和玻璃，安装合理，才能让钱不白花，真正发挥断桥铝门窗的价值！
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