METHOD FOR PRODUCING WELDED TUBING HAVING A UNIFORM MICROSTRUCTURE
    2.
    发明申请
    METHOD FOR PRODUCING WELDED TUBING HAVING A UNIFORM MICROSTRUCTURE 失效
    用于生产具有均匀微结构的焊接管的方法

    公开(公告)号:US20020100524A1

    公开(公告)日:2002-08-01

    申请号:US09770211

    申请日:2001-01-29

    发明人: John C. Tverberg

    IPC分类号: C22F001/00 C21D009/08

    摘要: A method for producing an autogenous welded tubular metal article having a substantially uniform grain size, including the weld-affected area thereof. This is achieved by applying to the metal article a series of cold reduction and annealing operations that in combination render the grain size of the weld-affected area uniform with respect to the remainder of the cross-section of the article, and particular the visual appearance of the cross-section.

    摘要翻译: 一种具有基本上均匀的粒度的自发焊接的管状金属制品的制造方法,包括其受焊缝影响的区域。 这通过将金属制品应用于一系列冷还原和退火操作来实现,所述冷还原和退火操作使得焊接区域的晶粒尺寸相对于制品的横截面的其余部分均匀,特别是视觉外观 的横截面。