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    螺旋埋弧焊管剩磁的產(chǎn)生及其消除

    Causes for and Countermeasures Against Residual Magnet of SAW Spiral Weld Tube

    • 摘要: 簡要分析了螺旋埋弧焊管由于受母材成分、組織以及焊接過程的影響,其產(chǎn)品兩端會產(chǎn)生剩磁,影響產(chǎn)品質(zhì)量。提出了管端剩磁可采用特斯拉計測量;消磁一般采用交流消磁和直流消磁兩種方法。

       

      Abstract: Based on the analysis as described in the paper, it is identified that the occurrence of residual magnet at both ends of the SAW spiral weld tube is related to such elements as chemical composition and structure of the base metal and the welding process. The said residual magnet produces negative influences on product quality.Accordingly, proposals are put forward, including using the Tesla meter for measurement of the residual magnet and eliminating it by means of both AC and DC demagnetization methods.

       

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