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    關(guān)于增加軋件外端改善無(wú)縫鋼管變形的討論

    Discussion on Improvement of Seamless Steel Tube Deformation via Increasing Rolled-piece External End

    • 摘要: 簡(jiǎn)述了變形體外端的含義及作用，介紹了幾個(gè)軋鋼生產(chǎn)中應(yīng)用增加軋件外端方法來(lái)減少金屬不均勻變形的實(shí)例，用外端理論解釋了無(wú)縫鋼管生產(chǎn)中在管坯尾部定心的原理和作用，提出了張力減徑機(jī)軋制無(wú)縫鋼管時(shí)采用半無(wú)頭、無(wú)頭軋制工藝的設(shè)想，并分析了采用半無(wú)頭、無(wú)頭軋制工藝生產(chǎn)時(shí)可能出現(xiàn)的問(wèn)題。

       

      Abstract: Briefed are the difinition and effect of the deformable body external end, and several cases concerning application of the rolled-piece external end-increasing method to reduce uneven metal deformation.The principle and effect of billet tail-end centering operation as used during seamless steel tube manufacturing process are explained with the external end theory.The author here presents the idea of using the semi-non-crop and non-crop rolling process to roll seamless steel pipes with the stretch reducing mill, and also analyzes the problems as probably encountered with during such rolling process.

       

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