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    帶芯棒拔制“壁厚上浮”的研究

    ANALYSIS OF “OVER-PLuS WALL THICKNESS DEVIATION” DURING PIPE ROLLING PROCESS WITH MANDREL

    • 摘要: 本文闡述了鋼管帶芯棒拔制時"壁厚上浮"的情況,引入了"壁厚上浮"和"同架壁厚差"的概念,研究了"壁厚上浮"量對提高冷拔產(chǎn)品壁厚精度和金屬收得率的影響,導(dǎo)出了計算"壁厚上浮"量和鋼管實際壁厚的數(shù)學表達式。

       

      Abstract: The paper gives a description with respect to the "over-plus wall thickness deviation" during pipe rolling process with mandrel, introduces the concepts of "over-plus wall thickness deviation" and "wall thickness deviation in the same mill stand", also carries out an analysis of the influence of "over-plus wall thickness deviation" on the wall thickness tolerance of the cold drawn tube and the metal yield, there by a mathemantic expression for calculation of the value of "over-plus wall thickness deviation" and the actual wall thickness of the tube is deduced.

       

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