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铝合金建筑型材的力学试验GB 5237.6

作者：來源：发布日期： 2020.10.16

信息摘要：

铝合金建筑型材的力学试验GB 5237.6

試驗名稱：鋁合金建築型材的力學試驗
公司名稱：某鋁材公司
材料名稱：隔熱型材、隔熱條
执行标准：GB 5237.6
試驗方法：拉伸、剪切等
試驗夾具：拉伸、剪切、隔熱膠條專用拉伸夾具等
试验设备：三思泰捷CMT4104GD 高低溫試驗機
輔件設備：高低溫環境箱

試驗需求：
根据GB 5237.6—2004《铝合金建筑型材第6部分：隔热型材》要求，需测试：隔热型材産品室温、低温、高温縱向剪切試驗、高温持久荷載縱向剪切試驗、高温持久荷載横向拉伸试验等。
隔熱型材：以隔熱材料連接鋁合金型材而制成的具有隔熱功能的複合型材。

制樣要求：

檢驗項目	取樣規定	要求的章條號	試驗方法的章條號
鋁合金型材的檢測	生产厂在复合前取样，需方可在隔热型材産品上直接取样，取样应符合GB 5237.1～5237.5相应规定相应规定	4.2	5.1
隔熱材料的檢測	符合附錄A規定	4.3	5.2
産品尺寸偏差檢測	符合GB 5237.1中的相应规定	4.4	5.3
産品縱向剪切試驗	每项试验应在每批産品中取2根，每根均匀地在中部和两端分别切取足够的试样，并做标识。试样长100mm±2mm，横向抗拉试验的试样允许缩短至18mm（仲裁时，试样长为100mm±2mm）。不同试验项目可合并取样，但每项试验必须包括型材中部和两端的试样至少各3个	4.5	5.4
産品纵向剪切彈性常數特性值檢測
産品横向拉伸试验
産品抗扭试验
産品高温持久荷載横向拉伸试验
産品高温持久荷載縱向剪切試驗
産品热循环试验	每批取2根，每根于中部切取1個試樣，于兩端分別切取2個試樣，對試樣進行標識（共10個）試樣長305mm±2mm	4.5
産品外观质量	逐根檢查	4.7	5.5
注1：産品縱向剪切試驗和纵向剪切弹性常数特征值檢測在一次試驗完成時，樣品可以只選一組（30個）；注2：穿条式産品高温持久荷載横向拉伸试验，可采用室温縱向剪切試驗失效的试样。

檢驗結果的判定：

不合格的檢驗項目	檢驗結果的判定
鋁合金型材的檢測	按GB/T 5237.2～5237.5相应産品的檢驗結果的判定规定。
隔熱材料的檢測	按附錄A規定
産品尺寸偏差檢測	尺寸偏差不合格時，判该批不合格，但允许逐根檢驗，合格者交货。
産品外观质量的檢測	外觀質量不合格時，判該根不合格。
産品縱向剪切試驗	特征值不合格时，判该批不合格。但允许从该批産品中另取4根型材，每兩根型材爲一組，每組按表3取样进行重复试验。重复试验结果全部合格，则判该批産品合格；若重复试验结果仍有试样不合格时，判该批産品不合格。
産品横向拉伸试验
産品抗扭试验
産品高温持久荷載横向拉伸试验	变形量不合格时，判该批産品不合格；特征值不合格时，从该批産品中另取双倍数量的型材，均分作两组，每组按表4取样进行重复试验。如仍有特征值不合格，判该批産品不合格。
産品热循环试验

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