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首页> 外文会议>International Symposium on Advanced Materials and Processes for Innovative Tube amp; Pipe Making amp; Forming; 20070618-20; Nagoya(JP) >Development of New ERW Steel Tube with Hige Strength and Excellent Formability Using Warm Reducing
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Development of New ERW Steel Tube with Hige Strength and Excellent Formability Using Warm Reducing

机译：利用减温技术开发具有高强度和优异成形性的新型ERW钢管

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摘要

The HISTORY (High speed tube welding and optimum reducing technology) tube is new type of ERW tube which has higher elongation, higher r-value and higher n-value than can be attained in conventional ERW steel tube. These desirable properties can only be achieved by warm-temperature reducing. The higher r-value and n-value of the warm-reduced steel tube provides excellent hydroformability, especially for hydroforming including pre-bending or pre-forming. Furthermore, the warm reduced steel tube has a wider forming range without buckling or bursting. Therefore, greater stability and increased yield ratio are expected by using the warm reduced steel tube for hydroforming.
机译：HISTORY（高速管焊接和最佳还原技术）管是新型ERW管，其伸长率，r值和n值均比常规ERW钢管高。这些期望的性能只能通过降低温温来实现。减温钢管的较高r值和n值可提供出色的液压成形性，尤其是对于包括预弯曲或预成形在内的液压成形而言。此外，减温的钢管具有较宽的成形范围，而不会弯曲或破裂。因此，通过使用温热还原钢管进行液压成形，可以期待更高的稳定性和更高的屈服比。

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