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断桥铝窗资讯

断桥铝门窗的好坏看隔热条和壁厚

断桥铝窗资讯 2022年4月23日 18:03

好像中国的很多东西都逃脱不了假冒伪劣，如今的门窗市场中，最常见的断桥铝门窗也变得鱼龙混杂了，那如何判断断桥铝门窗的好坏呢？断桥铝门窗的好坏主要看隔热条和壁厚。

断桥铝门窗的好坏看隔热条和壁厚

据介绍，隔热材料，也称隔热条。隔热条质量是决定此类门窗能否真正达到保温隔热效果的关键。隔热条的基材应采用聚酰胺尼龙（PA66），但目前市场上存在用PVC、尼龙6等其他材质替代PA66的现象，如果中间隔热材料是PVC的，虽然保温隔热性能一般能达到要求，但是强度达不到要求，容易断裂、出现质量问题。由于PVC的线膨胀系数与铝合金的线膨胀系数相差甚远，而且其存在强度低、耐热性差、抗老化性能差等众多缺陷，用PVC隔热条制成的隔热门窗在使用后由于热胀冷缩的原因会造成PVC隔热条松动，甚至完全脱离，轻则导致窗体松动、变形，重则导致窗体整体松散、脱离。

另外，除了要重视隔热条的材质质量外，也要考虑外两层铝合金以及中空玻璃的质量。2009年9月实施的《铝合金建筑型材第1部分：基材》（GB5237.1-2008）规定，除压条、压盖、扣板等需要弹性装配的型材之外，型材最小公称壁厚应不小于1.20mm。

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