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公开(公告)号：US20090084151A1
公开(公告)日：2009-04-02
申请号：US12258851
申请日：2008-10-27
IPC分类号： B21B19/04
CPC分类号： B21B23/00 , B21B3/02 , B21B17/02 , B21B25/04 , B21B45/00 , B21B45/0269 , C21D3/04 , C21D9/08
摘要： A process for producing seamless pipes which comprises conducting a piercing rolling step, a elongating rolling step using a mandrel bar, and a sizing rolling step and subsequently conducting a product heat treatment. In the process, when the carbon-equivalent weight, namely the sum of the weight of graphite in the lubricant and the carbon content in the organic binder, per unit area of the lubricant adhering to the mandrel bar surface in the above-mentioned step of elongating rolling is expressed by C (g/m2) or the maximum extent of carburization in the inner surface of the pipe to be heat-treated but prior to the heat treatment is expressed by ΔC (% by mass), the heating temperature for the pipe to be heat-treated is expressed by T (° C.), and the time during which a decarburizing gas is blown into the inside of the pipe to be heat-treated is expressed by t1 or t2 (seconds), and further, the blowing time calculated taking into account the wall thickness reduction in the step of cold working is expressed by t3 or t4 (seconds), a predetermined relation is satisfied and the actual decarburizing gas blowing time in the heat treatment is longer than the time t1, t2, t3 or t4 (seconds), whereby seamless stainless steel pipes reduced in carburized layer formation can be produced even when the carbon adhesion to the pipe inner surface is caused in, for example, mandrel mill rolling.
摘要翻译： 一种生产无缝管的方法，包括进行穿孔轧制步骤，使用芯棒的拉伸轧制步骤和施胶轧制步骤，随后进行产品热处理。 在该过程中，当上述步骤中碳当量重量即润滑剂中的石墨重量与有机粘合剂中的碳含量的总和相对于在芯棒表面附着的润滑剂的单位面积时， 拉伸轧制由C（g / m 2）表示，或被热处理的管内表面的最大渗碳量表示为热处理之前的ΔC（质量％），加热温度为 待热处理的管道由T（℃）表示，并且将脱碳气体吹入待热处理管内的时间由t1或t2（秒）表示，此外， 考虑到冷加工步骤中的壁厚减少而计算的吹送时间由t3或t4（秒）表示，满足预定关系，并且热处理中的实际脱碳气体吹送时间长于时间t1， t2，t3或t4（秒），由此海 即使当在例如芯棒式无缝管轧机轧制中引起对内表面的碳附着时，也可以生产减少渗碳层形成的无尘不锈钢管。
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公开(公告)号：US20090064749A1
公开(公告)日：2009-03-12
申请号：US12247923
申请日：2008-10-08
申请人： YASUYOSHI HIDAKA , Satoshi Matsumoto , Toshihide Ono , Kouji Nakaike , Sumio Iida , Hiroshi Nogami
发明人： YASUYOSHI HIDAKA , Satoshi Matsumoto , Toshihide Ono , Kouji Nakaike , Sumio Iida , Hiroshi Nogami
IPC分类号： B21B17/10
CPC分类号： B21B23/00 , B21B3/02 , B21B17/10 , B21B17/14 , B21B19/04 , B21B25/04 , B21B45/004 , C21D1/76 , C21D1/767 , C21D3/04 , C21D8/10 , C21D9/08 , C22C38/02 , C22C38/44 , C22C38/58
摘要： A process for stainless-steel pipe production which comprises piercing rolling a raw material stainless steel containing, by mass, Cr: 10-30%, to give a hollow shell, elongating rolling the hollow shell using a mandrel bar, together with a graphite-free lubricant, to give a finishing rolling blank pipe and heating the blank pipe in a reheating furnace and subjecting the same to finishing rolling by sizing rolling to produce a hot-finished pipe, and then subjecting this pipe as a mother pipe to cold working to produce a stainless-steel pipe. In the reheating furnace, the finishing rolling blank pipe is heated to 1000° C. or more and subjected to heating in which an oxidizing gas is blown into the pipe inside, whereby a stainless-steel pipe which is inhibited from forming a carburized layer in the pipe inner surface can be produced. When the finishing rolling by sizing rolling to give a cold working mother pipe is carried out by stretch reducer rolling at 860-1050° C., an annealing heat treatment of the mother pipe for cold working can be omitted. Thus, a stainless-steel pipe having excellent surface quality can be efficiently produced.
摘要翻译： 一种不锈钢管制造方法，其特征在于，将包含Cr：10〜30％的原料不锈钢进行穿孔轧制，得到中空壳，使用芯棒将中空壳拉伸，并与石墨 无需润滑剂，得到精轧坯管，再加热炉内的坯管加热，通过定径轧制进行精轧，制成热轧管，然后将该管作为母管进行冷加工 生产不锈钢管。 在再热炉中，将精轧坯管加热至1000℃以上，进行向内部吹入氧化气体的加热，由此抑制渗碳层形成的不锈钢管 可以制造管内表面。 当通过在860-1050℃下的拉伸减速机轧制进行通过定径轧制得到冷加工母管的精轧时，可以省略用于冷加工的母管的退火热处理。 因此，可以有效地制造具有优异表面质量的不锈钢管。
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公开(公告)号：US08307688B2
公开(公告)日：2012-11-13
申请号：US12258851
申请日：2008-10-27
CPC分类号： B21B23/00 , B21B3/02 , B21B17/02 , B21B25/04 , B21B45/00 , B21B45/0269 , C21D3/04 , C21D9/08
摘要： A process for producing seamless pipes which comprises conducting a piercing rolling step, a elongating rolling step using a mandrel bar, and a sizing rolling step and subsequently conducting a product heat treatment. In the process, when the carbon-equivalent weight, namely the sum of the weight of graphite in the lubricant and the carbon content in the organic binder, per unit area of the lubricant adhering to the mandrel bar surface in the above-mentioned step of elongating rolling is expressed by C (g/m2) or the maximum extent of carburization in the inner surface of the pipe to be heat-treated but prior to the heat treatment is expressed by ΔC (% by mass), the heating temperature for the pipe to be heat-treated is expressed by T (° C.), and the time during which a decarburizing gas is blown into the inside of the pipe to be heat-treated is expressed by t1 or t2 (seconds), and further, the blowing time calculated taking into account the wall thickness reduction in the step of cold working is expressed by t3 or t4 (seconds), a predetermined relation is satisfied and the actual decarburizing gas blowing time in the heat treatment is longer than the time t1, t2, t3 or t4 (seconds), whereby seamless stainless steel pipes reduced in carburized layer formation can be produced even when the carbon adhesion to the pipe inner surface is caused in, for example, mandrel mill rolling.
摘要翻译： 一种生产无缝管的方法，包括进行穿孔轧制步骤，使用芯棒的拉伸轧制步骤和施胶轧制步骤，随后进行产品热处理。 在该过程中，当上述步骤中碳当量重量即润滑剂中的石墨重量与有机粘合剂中的碳含量的总和相对于在芯棒表面附着的润滑剂的单位面积时， 拉伸轧制由C（g / m 2）表示，或被热处理的管内表面的最大渗碳程度，但是在热处理之前用＆Dgr; C（质量％）表示，加热温度 对于待热处理的管道由T（℃）表示，并且将脱碳气体吹入待热处理管内部的时间由t1或t2（秒）表示，并且 此外，考虑到冷加工步骤中的壁厚减少而计算的吹送时间由t3或t4（秒）表示，满足预定关系，并且热处理中的实际脱碳气体吹送时间长于时间 t1，t2，t3或t4（秒），由此海 即使当在例如芯棒式无缝管轧机轧制中引起对内表面的碳附着时，也可以生产减少渗碳层形成的无尘不锈钢管。
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公开(公告)号：US08047039B2
公开(公告)日：2011-11-01
申请号：US12247923
申请日：2008-10-08
申请人： Yasuyoshi Hidaka , Satoshi Matsumoto , Toshihide Ono , Kouji Nakaike , Sumio Iida , Hiroshi Nogami
发明人： Yasuyoshi Hidaka , Satoshi Matsumoto , Toshihide Ono , Kouji Nakaike , Sumio Iida , Hiroshi Nogami
CPC分类号： B21B23/00 , B21B3/02 , B21B17/10 , B21B17/14 , B21B19/04 , B21B25/04 , B21B45/004 , C21D1/76 , C21D1/767 , C21D3/04 , C21D8/10 , C21D9/08 , C22C38/02 , C22C38/44 , C22C38/58
摘要： A process for stainless-steel pipe production which comprises piercing rolling a raw material stainless steel containing, by mass, Cr: 10-30%, to give a hollow shell, elongating rolling the hollow shell using a mandrel bar, together with a graphite-free lubricant, to give a finishing rolling blank pipe and heating the blank pipe in a reheating furnace and subjecting the same to finishing rolling by sizing rolling to produce a hot-finished pipe, and then subjecting this pipe as a mother pipe to cold working to produce a stainless-steel pipe. In the reheating furnace, the finishing rolling blank pipe is heated to 1000° C. or more and subjected to heating in which an oxidizing gas is blown into the pipe inside, whereby a stainless-steel pipe which is inhibited from forming a carburized layer in the pipe inner surface can be produced. When the finishing rolling by sizing rolling to give a cold working mother pipe is carried out by stretch reducer rolling at 860-1050° C., an annealing heat treatment of the mother pipe for cold working can be omitted. Thus, a stainless-steel pipe having excellent surface quality can be efficiently produced.
摘要翻译： 一种不锈钢管制造方法，其特征在于，将包含Cr：10〜30％的原料不锈钢进行穿孔轧制，得到中空壳，使用芯棒将中空壳拉伸，并与石墨 无需润滑剂，得到精轧坯管，再加热炉内的坯管加热，通过定径轧制进行精轧，制成热轧管，然后将该管作为母管进行冷加工 生产不锈钢管。 在再热炉中，将精轧坯管加热至1000℃以上，进行向内部吹入氧化气体的加热，由此抑制渗碳层形成的不锈钢管 可以制造管内表面。 当通过在860-1050℃下的拉伸减速机轧制进行通过定径轧制得到冷加工母管的精轧时，可以省略用于冷加工的母管的退火热处理。 因此，可以有效地制造具有优异表面质量的不锈钢管。
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公开(公告)号：US20100269868A1
公开(公告)日：2010-10-28
申请号：US12377315
申请日：2007-08-06
申请人： Kouji Nakaike , Yasuyoshi Hidaka , Sumio Iida
发明人： Kouji Nakaike , Yasuyoshi Hidaka , Sumio Iida
IPC分类号： B21B45/02
摘要： It is an object of the present invention to provide a mandrel bar cleaning facility capable of effectively suppressing carburization generated on the inner surface of a pipe or tube while the pipe or tube is elongated and rolled without hindering an operation.A mandrel bar cleaning facility 15 of the present invention cleans a mandrel bar B which is pulled out of a mandrel bar conveying line after being used for elongating and rolling a pipe or tube in a mandrel mill 8. The mandrel bar cleaning facility 15 is provided with conveying devices 17, 18 that convey the mandrel bar B in the axial direction while revolving the mandrel bar B in the peripheral direction, and cleaning devices 1d that are arranged oppositely to the side of the mandrel bar B conveyed by the conveying devices 17, 18, and jet high-pressure water having a water pressure of 0.2 to 150 MPa (preferably, 20 to 150 MPa) toward the outer surface of the mandrel bar B.
摘要翻译： 本发明的目的是提供一种芯棒清洗设备，能够有效地抑制管或管的内表面上产生的渗碳，同时在不妨碍操作的情况下延长和滚动管子。 本发明的芯棒清洗装置15清洗了在用于在芯棒式无缝管轧机8中延长和轧制管或管的芯棒输送线之后拉出的芯棒B.提供了芯棒清洗装置15 具有沿轴向传送芯棒B的输送装置17,18，同时使芯棒B沿圆周方向旋转，以及与由输送装置17输送的芯棒B的相反侧布置的清洁装置1d， 18，向芯棒B的外表面喷射水压为0.2〜150MPa（优选为20〜150MPa）的高压水。
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公开(公告)号：US07469565B2
公开(公告)日：2008-12-30
申请号：US11892327
申请日：2007-08-22
申请人： Kouji Nakaike , Yasuyoshi Hidaka , Sumio Iida , Hiroki Kusuda , Masami Sakiyama
发明人： Kouji Nakaike , Yasuyoshi Hidaka , Sumio Iida , Hiroki Kusuda , Masami Sakiyama
IPC分类号： B21B19/04
摘要： A seamless tube is manufactured while effectively suppressing the occurrence of carburization in the seamless tube without interfering with operations.A seamless tube is manufactured by a step of washing at least a portion of a conveyor installed in a conveying step of a mandrel bar B which is situated from a lubricant applying device 7 to the entrance of a mandrel mill 8, a step of washing, on the upstream side of the lubricant applying device 7, a mandrel bar B which was used for elongation rolling, and a step of applying a non-graphite-based lubricant to the mandrel bar B with the lubricant applying device 7, wherein the conveyor and the mandrel bar B are each washed such that the amount of graphite C2 (g/m2) adhering to the surface of the mandrel bar B before it is provided to elongation rolling and the amount of carbon C1 (g/m2) contained in the organic binder of the applied lubricant satisfy Equation 1: 0.08×C1+0.05×C2≦3 and Equation 2: 3≦C1+C2≦50.
摘要翻译： 制造无缝管，同时有效地抑制无缝管中渗碳的发生，而不干扰操作。 通过将安装在从润滑剂涂布装置7的芯棒B的输送步骤中安装的输送机的至少一部分洗涤到芯棒式无缝管轧机8的入口的步骤，洗涤步骤， 在润滑剂涂布装置7的上游侧，用于伸长轧制的芯棒B和使用润滑剂涂敷装置7向芯棒B涂布非石墨系润滑剂的工序，其中，输送机 芯棒B各自被洗涤，使得在将其提供给伸长轧制之前粘附到芯棒B的表面上的石墨C2（g / m 2）的量和有机物中所含的碳的量（g / m 2） 所施加的润滑剂的粘合剂满足式1：0.08xC1 + 0.05xC2 <= 3和等式2：3 <= C1 + C2 <= 50。
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公开(公告)号：US20080083254A1
公开(公告)日：2008-04-10
申请号：US11892327
申请日：2007-08-22
申请人： Kouji Nakaike , Yasuyoshi Hidaka , Sumio Iida , Hiroki Kusuda , Masami Sakiyama
发明人： Kouji Nakaike , Yasuyoshi Hidaka , Sumio Iida , Hiroki Kusuda , Masami Sakiyama
摘要： A seamless tube is manufactured while effectively suppressing the occurrence of carburization in the seamless tube without interfering with operations. A seamless tube is manufactured by a step of washing at least a portion of a conveyor installed in a conveying step of a mandrel bar B which is situated from a lubricant applying device 7 to the entrance of a mandrel mill 8, a step of washing, on the upstream side of the lubricant applying device 7, a mandrel bar B which was used for elongation rolling, and a step of applying a non-graphite-based lubricant to the mandrel bar B with the lubricant applying device 7, wherein the conveyor and the mandrel bar B are each washed such that the amount of graphite C2 (g/m2) adhering to the surface of the mandrel bar B before it is provided to elongation rolling and the amount of carbon C1 (g/m2) contained in the organic binder of the applied lubricant satisfy Equation 1: 0.08×C1+0.05×C2≦3 and Equation 2: 3≦C1+C2≦50.
摘要翻译： 制造无缝管，同时有效地抑制无缝管中渗碳的发生，而不干扰操作。 通过将安装在从润滑剂涂布装置7的芯棒B的输送步骤中安装的输送机的至少一部分洗涤到芯棒式无缝管轧机8的入口的步骤，洗涤步骤， 在润滑剂涂布装置7的上游侧，用于伸长轧制的芯棒B和使用润滑剂涂敷装置7向芯棒B涂布非石墨系润滑剂的工序，其中，输送机 芯棒B各自被清洗，使得在将其提供给伸长轧制之前粘附到芯棒B的表面上的石墨C2（g / m 2）与碳的量（C 1 所施加的润滑剂的有机粘合剂中所含的g / m 2）满足式1：0.08×Cl + 0.05×C 2≤3，式2：3 <= C1 + C2 <= 50。
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8.发明授权Piercing and rolling plug, method of regenerating such piercing and rolling plug, and equipment line for regenerating such piercing and rolling plug 有权穿孔和滚塞，再生这种穿孔和滚压塞的方法，以及用于再生这种穿孔和滚压塞的设备线公开(公告)号：US08082768B2
公开(公告)日：2011-12-27
申请号：US12490857
申请日：2009-06-24
申请人： Yasuyoshi Hidaka , Kazuhiro Shimoda , Kouji Nakaike , Naoya Hirase , Yasuto Higashida , Takateru Inage , Jyun Nagakita , Masaharu Nakamori , Fumihito Yoshikawa , Yoshihiko Hayashi , Takayuki Aisaka
发明人： Yasuyoshi Hidaka , Kazuhiro Shimoda , Kouji Nakaike , Naoya Hirase , Yasuto Higashida , Takateru Inage , Jyun Nagakita , Masaharu Nakamori , Fumihito Yoshikawa , Yoshihiko Hayashi , Takayuki Aisaka
IPC分类号： B21B19/04
CPC分类号： C23C4/12 , B21B25/00 , B21B25/04 , B21B25/06 , C23C4/00 , C23C4/02 , C23C4/11 , C23C4/131 , Y10T29/49723 , Y10T29/5137
摘要： A piercing and rolling plug has a film composed of oxides such as Fe3O4 and FeO and Fe (metal) as being formed on the surface of the base metal by electric arc spraying using an iron wire whose main component is Fe and, owing to this film, a plug excellent in heat-shielding and seizure-preventing effects can be realized and the lifetime of the plug can be prolonged. Further, in regenerating this plug, a film can be re-formed via the steps of shot blasting of the as-used plug in piercing and rolling and electric arc spraying in that order; thus, it is possible to regenerate the plug at low cost and in a short period of time.
摘要翻译： 穿孔滚动塞具有由氧化物如Fe 3 O 4和FeO和Fe（金属）构成的膜，其通过使用主要成分为Fe的铁丝通过电弧喷涂形成在母材表面上，并且由于该膜 能够实现优良的隔热防止效果的塞子，延长塞子的使用寿命。 此外，在再生该插头时，可以通过以下步骤重新形成薄膜：依次进行穿孔和滚压以及电弧喷涂中使用的插头的喷丸处理; 因此，可以在低成本和短时间内再生插头。
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9.发明申请Piercing and Rolling Plug, Method of Regenerating Such Piercing and Rolling Plug, and Equipment Line for Regenerating Such Piercing and Rolling Plug 有权穿孔和滚压塞，再生这种穿孔和滚压塞的方法，以及用于再生这种穿孔和滚压塞的设备线公开(公告)号：US20100050723A1
公开(公告)日：2010-03-04
申请号：US12490857
申请日：2009-06-24
申请人： Yasuyoshi Hidaka , Kazuhiro Shimoda , Kouji Nakaike , Naoya Hirase , Yasuto Higashida , Takateru Inage , Jyun Nagakita , Masaharu Nakamori , Fumihito Yoshikawa , Yoshihiko Hayashi , Takayuki Aisaka
发明人： Yasuyoshi Hidaka , Kazuhiro Shimoda , Kouji Nakaike , Naoya Hirase , Yasuto Higashida , Takateru Inage , Jyun Nagakita , Masaharu Nakamori , Fumihito Yoshikawa , Yoshihiko Hayashi , Takayuki Aisaka
CPC分类号： C23C4/12 , B21B25/00 , B21B25/04 , B21B25/06 , C23C4/00 , C23C4/02 , C23C4/11 , C23C4/131 , Y10T29/49723 , Y10T29/5137
摘要： A piercing and rolling plug has a film composed of oxides such as Fe3O4 and FeO and Fe (metal) as being formed on the surface of the base metal by electric arc spraying using an iron wire whose main component is Fe and, owing to this film, a plug excellent in heat-shielding and seizure-preventing effects can be realized and the lifetime of the plug can be prolonged. Further, in regenerating this plug, a film can be re-formed via the steps of shot blasting of the as-used plug in piercing and rolling and electric arc spraying in that order; thus, it is possible to regenerate the plug at low cost and in a short period of time.
摘要翻译： 穿孔滚动塞具有由氧化物如Fe 3 O 4和FeO和Fe（金属）构成的膜，其通过使用主要成分为Fe的铁丝通过电弧喷涂形成在母材表面上，并且由于该膜 能够实现优良的隔热防止效果的塞子，延长塞子的使用寿命。 此外，在再生该插头时，可以通过以下步骤重新形成薄膜：依次进行穿孔和滚压以及电弧喷涂中使用的插头的喷丸处理; 因此，可以在低成本和短时间内再生插头。
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10.发明申请公开(公告)号：US20110239720A1
公开(公告)日：2011-10-06
申请号：US12225726
申请日：2007-03-20
申请人： Kouji Nakaike , Yasuyoshi Hidaka , Hiroshi Nogami
发明人： Kouji Nakaike , Yasuyoshi Hidaka , Hiroshi Nogami
IPC分类号： B21B17/02
CPC分类号： B21B23/00 , B21B17/02 , B21B17/04 , B21B19/04 , B21B25/04 , B21B45/004 , C21D1/70 , C21D1/74 , C21D3/00 , C21D8/10 , C21D9/08
摘要： A production method of a seamless pipe or tube according to the present invention comprises the steps of applying a lubricant containing carbon to a mandrel bar, producing a material pipe or tube with a mandrel mill using the mandrel bar to which the lubricant is applied, and reheating the material pipe or tube in a reheating furnace, wherein when a temperature of the material pipe or tube is 550° C. or higher and 1000° C. or lower in the reheating step, an oxidizing gas is fed into the material pipe or tube.
摘要翻译： 根据本发明的无缝管或管的制造方法包括以下步骤：向芯棒施加含碳润滑剂，使用使用润滑剂的芯棒，用芯棒式无缝管轧机生产材料管或管;以及 在再加热炉中重新加热材料管或管，其中当再加热步骤中材料管或管的温度为550℃以上且1000℃以下时，将氧化气体供给至原料管或 管。
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