首页 >> 新闻中心 >> GB/T18033-2017无缝铜水管和铜气管压扁扩口试验Seamless Copper Tubes Flattening Test
GB/T18033-2017无缝铜水管和铜气管工艺性能试验规定：可用压扁试验代替扩口试验，压扁试验后管材的内壁间距等于3倍壁厚。压扁试验后管材不应出现肉眼可见的裂纹或破损。铜管扩口试验采用顶锥45°，扩口率规定为40％及30％。铜管力学性能需测定抗拉强度、断后延伸率、HV5维氏硬度。
GB/T18033-2017无缝铜水管和铜气管，规定了无缝铜水管和铜气管试验方法、检验规则。GB/T18033-2017适用于输送饮用水、生活冷热供水、民用天然气、煤气及对铜无腐蚀作用的其他介质的铜管。铜管一般采用焊接、扩口或压接等方式与管件相连接。
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济南恒瑞金试验机有限公司；材料力学试验机制造商；山东省力值硬度计量委员
（试验机服务中心）（试验机配件供应中心）（特殊夹具定制中心）
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