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1. 发明申请

US20130180300A1 METHOD FOR ADJUSTING ROLLING POSITIONS OF ROLLING ROLLS CONSTITUTING THREE-ROLL MANDREL MILL AND METHOD FOR MANUFACTURING SEAMLESS PIPES OR TUBES 审中-公开
标题翻译：调整构成三辊轧机的轧制辊的轧制位置的方法和制造无缝管或管的方法
公开(公告)号：US20130180300A1
公开(公告)日：2013-07-18
申请号：US13728071
申请日：2012-12-27
申请人： Akihito YAMANE , Shigeru Kidani
发明人： Akihito YAMANE , Shigeru Kidani
IPC分类号： B21B37/78
CPC分类号： B21B37/78 , B21B17/04 , B21B37/58 , B21B37/62 , B21B38/00 , B21B2261/10 , B21B2271/02 , B21B2273/14 , B21B2273/16 , B21B2275/06
摘要： [Problem to be Solved]A device for adjusting the rolling positions of rolling rolls and restraining poor roll-biting of the front edge part of a pipe material rolled by a three-roll mandrel mill includes pressing-down devices 1 (P1 to P6) for moving rolling rolls R1 to R6 in the rolling direction and a control unit 2 for controlling the pressing-down devices 1. Immediately after the front edge part of a pipe material T has begun to be rolled by the rolling rolls disposed on at least one rolling stand of the rolling rolls R1 to R6, the control unit 2 controls the pressing-down device 1 to move the rolling rolls in the closing direction. Preferably, the rolling rolls disposed on at least one rolling stand of the rolling rolls R1 to R6 in the closing direction are moved at a speed of 16 mm/sec or higher using the pressing-down device 1.
摘要翻译： [待解决问题]用于调整轧辊的轧制位置并抑制由三辊心轴轧机轧制的管材的前边缘部分的不良滚动的装置包括压下装置1（P1至P6）用于在轧制方向上移动轧制辊R1至R6;以及用于控制压下装置1的控制单元2.紧接着管材T的前边缘部分已经开始被设置在至少一个轧制辊R1〜R6的轧制机架，控制单元2控制压下装置1使轧辊沿关闭方向移动。优选地，使用压下装置1，使轧制辊R1〜R6的至少一个轧制机架以关闭方向设置在16mm / sec以上的速度。

2. 发明授权

US08939004B2 Method for adjusting rolling positions of rolling rolls constituting three-roll mandrel mill and method for manufacturing seamless pipes or tubes 有权
标题翻译：构成三辊心轴轧机的轧辊的轧制位置的调整方法及无缝管的制造方法
公开(公告)号：US08939004B2
公开(公告)日：2015-01-27
申请号：US13728071
申请日：2012-12-27
申请人： Akihito Yamane , Shigeru Kidani
发明人： Akihito Yamane , Shigeru Kidani
IPC分类号： B21B37/72 , B21B17/02 , B21B37/78 , B21B17/04 , B21B37/58 , B21B37/62 , B21B38/00
CPC分类号： B21B37/78 , B21B17/04 , B21B37/58 , B21B37/62 , B21B38/00 , B21B2261/10 , B21B2271/02 , B21B2273/14 , B21B2273/16 , B21B2275/06
摘要： [Problem to be Solved]A device for adjusting the rolling positions of rolling rolls and restraining poor roll-biting of the front edge part of a pipe material rolled by a three-roll mandrel mill includes pressing-down devices 1 (P1 to P6) for moving rolling rolls R1 to R6 in the rolling direction and a control unit 2 for controlling the pressing-down devices 1. Immediately after the front edge part of a pipe material T has begun to be rolled by the rolling rolls disposed on at least one rolling stand of the rolling rolls R1 to R6, the control unit 2 controls the pressing-down device 1 to move the rolling rolls in the closing direction. Preferably, the rolling rolls disposed on at least one rolling stand of the rolling rolls R1 to R6 in the closing direction are moved at a speed of 16 mm/sec or higher using the pressing-down device 1.
摘要翻译： [待解决问题]用于调整轧辊的轧制位置并抑制由三辊心轴轧机轧制的管材的前边缘部分的不良滚动的装置包括压下装置1（P1至P6）用于在轧制方向上移动轧制辊R1至R6;以及用于控制压下装置1的控制单元2.紧接着管材T的前边缘部分已经开始被设置在至少一个轧制辊R1〜R6的轧制机架，控制单元2控制压下装置1使轧辊沿关闭方向移动。优选地，使用压下装置1，使轧制辊R1〜R6的至少一个轧制机架以关闭方向设置在16mm / sec以上的速度。

3. 发明申请

US20050115647A1 Martensitic stainless steel seamless pipe and a manufacturing method thereof 有权
标题翻译：马氏体不锈钢无缝管及其制造方法
公开(公告)号：US20050115647A1
公开(公告)日：2005-06-02
申请号：US11030107
申请日：2005-01-07
申请人： Shigeru Kidani , Mutsumi Tanida
发明人： Shigeru Kidani , Mutsumi Tanida
IPC分类号： C21D8/10 , C21D9/08 , C22C38/26 , C22C38/28
CPC分类号： C21D8/105 , C21D6/002 , C21D9/08 , C21D2211/008 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/46
摘要： The present invention provides a martensitic stainless steel seamless pipe, having no inner surface defect and suppressing a delayed fracture generation in the impact-worked portions, and a method for manufacturing such a seamless steel pipe. A martensitic stainless steel seamless pipe, characterized by consisting of C: 0.15 to 0.22%, Si: 0.1 to 1.0%, Mn: 0.10 to 1.00%, Cr: 12.00 to 14.00%, P: 0.020% or less, S: 0.010% or less, N: 0.05% or less, O (Oxygen): 0.0060% or less, at least one alloying element selected from V, Nb and Ti of 0.005 to 0.200% and B of 0.0005 to 0.0100%, and the balance Fe and impurities, satisfying either the following inequalities (1), (2), (4) and (5) or the following inequalities (1), (3), (4) and (5): C*+10N*≦0.45, (1) H1≦−0.003(C*+10N*)+0.0016, (2) H2≦−0.0018(C*+10N*)+0.00096, (3) Cr*≦9.0, (4) S≦0.088N*+0.00056, (5)
摘要翻译：本发明提供一种马氏体不锈钢无缝管，其没有内表面缺陷并且抑制了冲击加工部分中的延迟断裂产生，以及这种无缝钢管的制造方法。马氏体不锈钢无缝管，其特征在于C：0.15〜0.22％，Si：0.1〜1.0％，Mn：0.10〜1.00％，Cr：12.00〜14.00％，P：0.020％以下，S：0.010％以下，N：0.05％以下，O（氧）：0.0060％以下，至少一种选自V，Nb和Ti的合金元素为0.005〜0.200％，B为0.0005〜0.0100％，余量为Fe 杂质，满足以下不等式（1），（2），（4）和（5）或以下不等式（1），（3），（4）和（5）：<？in-line-formula description =“直线公式”end =“lead”？> C * + 10N * <= 0.45，（1）<？in-line-formula description =“In-line Formulas”end =“tail”？> in-line-formula description =“In-line Formulas”end =“lead”？> H1 <= - 0.003（C * + 10N *）+ 0.0016，（2）<？in-line-formula description = 线公式“end =”tail“？> <？in-line-formula description =”In-line Formulas“end =”lead“？> H2 <= - 0.0018（C * + 10N *）+ 0.00096，（3） <？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formu lae“end =”lead“？> Cr * <= 9.0，（4）<？in-line-formula description =”In-line Formulas“end =”tail“？> <？in-line-formula description =” 在线公式“end =”lead“？> S <= 0.088N * + 0.00056，（5）<？in-line-formula description =”In-line Formulas“end =”tail“？>

4. 发明授权

US06692592B2 Method for manufacturing high chromium system seamless steel pipe 有权
标题翻译：高铬无缝钢管制造方法
公开(公告)号：US06692592B2
公开(公告)日：2004-02-17
申请号：US10361555
申请日：2003-02-11
申请人： Shigeru Kidani , Koichi Ikeda , Toshiharu Abe
发明人： Shigeru Kidani , Koichi Ikeda , Toshiharu Abe
IPC分类号： C21D810
CPC分类号： C22C38/44 , C21D8/105 , C21D9/08 , C22C38/24 , C22C38/46 , C22C38/58
摘要： A method for manufacturing a high Cr system seamless steel pipe having a high inside surface quality with a high efficiency and at a reduced production cost is provided. An initial material including Cr at a content of 10 to 20%, and impurities S and P at respective contents of not more than 0.050% is used to form a finished pipe, and when using parameters, the total soaking period &Sgr;t1 (hours) for soaking the initial material to form a primary pipe material as a billet or bloom and the total soaking period &Sgr;t2 (hours) for soaking the primary pipe material, a finished pipe is formed at a heating temperature of 1,200° C. under the condition that the following equation (b) is satisfied: F = f + 0.6 × ( 1 - 1 e ∑ ⁢ t1 ) + 0.8 × ( 1 - 1 e ∑ t2 ) > - 9.7 ( b ) where f is a factor indicating the degree of generating the &dgr; ferrites in accordance with the contents of elements included therein. The method allows a high Cr system seamless steel pipe having a very small amount of inside surface defects to be formed, using a high Cr steel. Since a predetermined productivity can be attained without any excessive addition of impurities, a high Cr system seamless steel pipe having a high inside surface quality can be produced with a high efficiency.
摘要翻译：提供了一种以高效率和降低生产成本制造具有高内表面质量的高Cr系无缝钢管的方法。使用包含Cr含量为10〜20％的初始材料，以及含量不大于0.050％的杂质S和P，以形成成品管，当使用参数时，总浸泡时间Sigmat1（小时）为浸泡初始材料以形成作为坯料或坯料的主管材料，以及用于浸泡主管材料的总浸渍时间Sigmat2（小时），在1200℃的加热温度下形成成品管，条件是满足以下等式（b）：其中f是指示根据其中包括的元素的内容产生δ铁素体的程度的因子。该方法允许使用高Cr钢形成具有非常少量的内表面缺陷的高Cr系无缝钢管。由于可以在没有任何过量添加杂质的情况下实现预定的生产率，所以可以高效率地制造具有高内表面质量的高Cr系无缝钢管。

5. 发明授权

US07686897B2 Martensitic stainless steel seamless pipe and a manufacturing method thereof 有权
标题翻译：马氏体不锈钢无缝管及其制造方法
公开(公告)号：US07686897B2
公开(公告)日：2010-03-30
申请号：US11030107
申请日：2005-01-07
申请人： Shigeru Kidani , Mutsumi Tanida
发明人： Shigeru Kidani , Mutsumi Tanida
IPC分类号： C22C38/00 , C22C38/18 , C21D9/08
CPC分类号： C21D8/105 , C21D6/002 , C21D9/08 , C21D2211/008 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/46
摘要： The present invention provides a martensitic stainless steel seamless pipe and a method of making, wherein the pipe has minimal inner surface defects and prevents delayed fracture generation in the impact-worked portions. The pipe comprises C: 0.15 to 0.22%, Si: 0.1 to 1.0%, Mn: 0.10 to 1.00%, Cr: 12.00 to 14.00%, P: 0.020% or less, S: 0.010% or less, N: 0.05% or less, O(Oxygen): 0.0060% or less, at least one alloying element selected from V, Nb and Ti of 0.005 to 0.200% and B of 0.0005 to 0.0100%, and the balance Fe and impurities, wherein either the following inequalities (1), (2), (4) and (5) or the following inequalities (1), (3), (4) and (5) are satisfied: C*+10N*≦0.45, (1) H1≦−0.003(C*+10N*)+0.0016, (2) H2≦−0.0018(C*+10N*)+0.00096, (3) Cr*≦9.0, (4) S≦0.088N*+0.00056, (5).
摘要翻译：本发明提供一种马氏体不锈钢无缝管及其制造方法，其特征在于，管内部表面缺陷小，防止冲击加工部产生延迟裂纹。该管包含C：0.15〜0.22％，Si：0.1〜1.0％，Mn：0.10〜1.00％，Cr：12.00〜14.00％，P：0.020％以下，S：0.010％以下，N：0.05％ O（氧）：0.0060％以下，至少一种选自V，Nb和Ti的合金元素为0.005〜0.200％，B为0.0005〜0.0100％，余量为Fe和杂质，其中以下不等式（ 1），（2），（4）和（5）或以下不等式（1），（3），（4）和（5）：C * + 10N *＆nlE; 0.45，（1）H1＆ -0.003（C * + 10N *）+ 0.0016，（2）H2＆nlE; -0.0018（C * + 10N *）+ 0.00096，（3）Cr *＆nlE; 9.0，（4）S＆nlE; 0.088N * 5）。

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