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    • 30. 发明公开
    • 용사 금속 도금 강관의 제조 방법
    • 通过热喷涂生产金属钢管的方法
    • KR1020070086382A
    • 2007-08-27
    • KR1020077013788
    • 2004-11-18
    • 다이와 고칸 고교 가부시키카이샤
    • 나카무라신이치로타마무라다다요시
    • C23C4/16
    • C23C4/08C23C4/02C23C4/16C23C28/00C23C28/021C23C28/023C23C28/025C23C28/028C23C30/00Y10T428/12292
    • [PROBLEMS] To provide a method for producing a steel pipe plated with a metal by thermal spraying, which has a metal layer being good and nearly homogeneous over the whole surface thereof, with good productivity. [MEANS FOR SOLVING PROBLEMS] A method for producing a metal pipe wherein a metal plate having a first chemical composition is continuously formed into a pipe and butt ends are continuously welded, to thereby form a metal pipe, which comprises forming a metal layer exhibiting no discontinuity in the circumference direction and in the length direction and having a second chemical composition different from the above first chemical composition by thermal spraying, directly on the surface of the metal pipe after the above continuous welding. It is preferred that the method further comprises, after the formation of a thermal-sprayed metal layer on the outer surface of the pipe, a working step for improving the uniformity of the thickness of said metal layer.
    • 本发明提供一种通过热喷涂生产镀金属的钢管的方法,该方法在整个表面上具有良好的金属层,几乎是均匀的,生产率高。 解决问题的方法一种金属管的制造方法,其中连续形成具有第一化学成分的金属板和对接端,从而形成金属管,该金属管包括形成不具有 在上述连续焊接之后,直接在金属管的表面上,在圆周方向和长度方向上具有不连续性,并且具有与上述第一化学组成不同的第二化学组成。 优选的是,在管的外表面上形成热喷涂金属层之后,还包括提高所述金属层的厚度均匀性的工作步骤。