精密的液压系统用冷拔无缝钢管-精密的钢管 (标准:PN-EN 10305-4)
生产方法及用途
这种管用于液压缸和气压缸的生产和翻新以及用于液压和气动系统. 这种无缝管是通过冷拔制造的管. 这种管是在+N条件下提供的 (正火在保护气氛中).
使用的钢种
E215, E235, E355
尺寸
外直径: 6,0 至80,0 mm
厚度: 1 至12,5 mm
长度: 3 - 6 m
试验方法与要求
试验: 化学分析, 拉力测试, 压扁试验或者扩口试验, 尺寸检查, 外观检查, 无损检测的密封性试验.
直线度: 1 mm/m (1 : 1 000) - 在内表面上测量的
密封性 : 管应该通过水压试验(7Mpa) 或者电磁试验.
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