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    T91鋼Φ110 mm管坯穿孔工藝生產(chǎn)實(shí)踐

    Practice of T91 Steel Φ110 mm Billet Piercing Process

    • 摘要: 針對(duì)T91鋼Φ110 mm管坯熱軋穿孔過程中頂頭消耗高、連接接頭脫絲或斷裂及產(chǎn)品出現(xiàn)內(nèi)折缺陷的問題，提出改進(jìn)措施。分析認(rèn)為：通過制定合理的加熱制度，改進(jìn)鉬基頂頭及連接接頭結(jié)構(gòu)，規(guī)范鉬基頂頭操作使用，可實(shí)現(xiàn)穩(wěn)定生產(chǎn)，每個(gè)頂頭平均穿孔支數(shù)達(dá)到363支，小時(shí)平均穿孔支數(shù)達(dá)67支左右，成本大幅下降。

       

      Abstract: Addressing the problems related to the piercing process of T91 steel Φ110 mm billets such as high consumption of plugs,loosing or breaking of plug connections,as well as the inner folds on pierced products,some countermeasures are proposed.It is indicated that by establishing a reasonable heating schedule,improving the structure of the molybdenum based plugs and connections,and standardizing the operation of the plugs,a stable piercing process with significantly lowerd cost can be realized when each plug may averagely pierce 363 billets in total and 67 billets per hour.

       

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