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公开(公告)号：US5816087A
公开(公告)日：1998-10-06
申请号：US633169
申请日：1996-04-16
IPC分类号： B21B3/02 , B21B15/00 , B21B17/08 , B21B19/04 , B21B25/04 , B21B45/00 , B21B45/02 , B21D30/02
摘要： A seamless steel tubular product is produced by hot-piercing an alloy-steel billet with a piercing plug to produce a hollow shell and then rolling the hollow shell. Prior to the hot-piercing, a steel sheet is joined to an end surface of the billet into which the plug is to be driven, such that the steel plate may not project beyond the periphery of the billet, the steel plate having a surface area (C) satisfying the equation: S.times.0.2.ltoreq.C.ltoreq.S.times.1.2 where, S is represented (plug bottom radius).sup.2 .times.3.14.
摘要翻译： 通过用穿孔塞将合金钢坯热刺穿以制造中空壳，然后轧制中空壳，制造无缝钢管产品。 在热刺之前，将钢板接合到要被驱动的塞子的坯料的端面，使得钢板可能不突出超过钢坯的周边，钢板具有表面积 （C）满足以下等式：Sx0.2
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公开(公告)号：US5778714A
公开(公告)日：1998-07-14
申请号：US645223
申请日：1996-05-13
摘要： A method for manufacturing a seamless pipe, comprises: preparing a billet made of an alloy steel or an alloy; joining a steel plate to an end surface at which piercing of the billet is commenced; preparing a piercing plug made of Mo, a Mo alloy or a heat-resisting steel;hot-piercing the billet by using the piercing plug to produce a hollow shell; and rolling the hollow shell to produce a seamless pipe.
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公开(公告)号：US20150114073A1
公开(公告)日：2015-04-30
申请号：US14404241
申请日：2012-05-29
CPC分类号： B21D39/20 , B21C1/24 , B21C3/16 , B21D41/026 , G06F17/5018
摘要： Through a tube expanding processing simulation, a workpiece shape in a state where a tip of a workpiece 10 has advanced by 1.0 m or more after passing through a shoulder portion 3 of a tool 1 is evaluated. A hollow piece shape and a tool shape such that the external diameter is within ±1% of the target, the thickness is within ±7.5% of the target, and the internal gap between the hollow piece and the tool is 1.0 mm or less are obtained by repeated calculation, and thereby actual tube expanding manufacturing conditions are determined.
摘要翻译： 通过管扩径处理模拟，评估在通过工具1的肩部3之后工件10的前端前进1.0m以上的状态下的工件形状。 中空件形状和工具形状使得外径在目标的±1％内，厚度在目标的±7.5％以内，中空件与工具之间的内部间隙为1.0mm以下 通过重复计算获得，从而确定实际的管膨胀制造条件。
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公开(公告)号：US09707614B2
公开(公告)日：2017-07-18
申请号：US14404241
申请日：2012-05-29
CPC分类号： B21D39/20 , B21C1/24 , B21C3/16 , B21D41/026 , G06F17/5018
摘要： Through a tube expanding processing simulation, a workpiece shape in a state where a tip of a workpiece 10 has advanced by 1.0 m or more after passing through a shoulder portion 3 of a tool 1 is evaluated. A hollow piece shape and a tool shape such that the external diameter is within ±1% of the target, the thickness is within ±7.5% of the target, and the internal gap between the hollow piece and the tool is 1.0 mm or less are obtained by repeated calculation, and thereby actual tube expanding manufacturing conditions are determined.
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公开(公告)号：US6073331A
公开(公告)日：2000-06-13
申请号：US010003
申请日：1998-01-21
摘要： A method for manufacturing a seamless pipe, comprises:preparing a billet made of an alloy steel or an alloy;joining a steel plate to an end surface at which piercing of the billet is commenced;preparing a piercing plug made of Mo, a Mo alloy or a heat-resisting steel;hot-piercing the billet by using the piercing plug to produce a hollow shell; androlling the hollow shell to produce a seamless pipe.
摘要翻译： 一种无缝管的制造方法，其特征在于，包括：准备由合金钢或合金制成的坯料; 将钢板接合到开始切割坯料的端面; 制备由Mo，Mo合金或耐热钢制成的穿孔塞; 通过使用穿孔塞来热刺穿坯料以产生中空的外壳; 并滚动中空壳以产生无缝管。
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