公开(公告)号：US20100108653A1

公开(公告)日：2010-05-06

申请号：US12596308

申请日：2008-04-20

申请人： Takahiro Ota ,  Shuho Tsubota ,  Takashi Ishide ,  Kazuhiko Kamo ,  Noriaki Sugimoto ,  Yoshiyuki Hemmi ,  Hironori Onitsuka ,  Takashi Akaba

发明人： Takahiro Ota ,  Shuho Tsubota ,  Takashi Ishide ,  Kazuhiko Kamo ,  Noriaki Sugimoto ,  Yoshiyuki Hemmi ,  Hironori Onitsuka ,  Takashi Akaba

IPC分类号： B23K26/02 ,  B23K26/00

CPC分类号： C21D9/08 ,  B23K26/0006 ,  B23K26/067 ,  B23K26/0676 ,  B23K26/0823 ,  B23K26/352 ,  B23K2101/06 ,  B23K2103/04 ,  B23K2103/05 ,  B23K2103/18 ,  B23K2103/26 ,  B23K2103/50 ,  C21D1/09 ,  C21D1/30 ,  C21D1/34 ,  C21D9/50

摘要： An object is to provide a method and an apparatus for improving a residual stress in a tubular body, which are enabled to improve the residual stress reliably by clearly defining controlling rage for treatment conditions without depending on an installation state and configuration of the tubular body. When an outer-circumferential surface of a welded portion of a cylindrical tubular body (2) is irradiated with a laser beam that circles around an outer circumference of the tubular body (2), a heating width W in a circumferential direction heated by the laser-beam irradiation and a laser-beam moving speed V in the circumferential direction are set so that a stress in the circumferential direction in an inner surface of the tubular body (2) produced by the heating with the laser beam is at least larger than a yielding stress of a material that the tubular body (2) is made of.

摘要翻译： 本发明的目的是提供一种用于改善管状体中的残余应力的方法和装置，其能够通过在不依赖于管状体的安装状态和构造的情况下清楚地限定治疗条件的控制，从而可靠地改善残余应力。 当圆筒形管体（2）的焊接部分的外圆周表面照射围绕管状体（2）的外周的激光束时，由激光器加热的圆周方向上的加热宽度W 光束照射和周向上的激光束移动速度V被设定为使得通过用激光束加热而产生的管状体（2）的内表面中的圆周方向的应力至少大于 产生管状体（2）制成的材料的应力。

公开(公告)号：US08362393B2

公开(公告)日：2013-01-29

申请号：US12596308

申请日：2007-04-20

申请人： Takahiro Ota ,  Shuho Tsubota ,  Takashi Ishide ,  Kazuhiko Kamo ,  Noriaki Sugimoto ,  Yoshiyuki Hemmi ,  Hironori Onitsuka ,  Takashi Akaba

发明人： Takahiro Ota ,  Shuho Tsubota ,  Takashi Ishide ,  Kazuhiko Kamo ,  Noriaki Sugimoto ,  Yoshiyuki Hemmi ,  Hironori Onitsuka ,  Takashi Akaba

IPC分类号： B23K26/00 ,  B23K26/02 ,  C21D8/10 ,  C21D1/09 ,  C21D1/00

CPC分类号： C21D9/08 ,  B23K26/0006 ,  B23K26/067 ,  B23K26/0676 ,  B23K26/0823 ,  B23K26/352 ,  B23K2101/06 ,  B23K2103/04 ,  B23K2103/05 ,  B23K2103/18 ,  B23K2103/26 ,  B23K2103/50 ,  C21D1/09 ,  C21D1/30 ,  C21D1/34 ,  C21D9/50

摘要： An object is to provide a method and an apparatus for improving a residual stress in a tubular body, which are enabled to improve the residual stress reliably by clearly defining controlling rage for treatment conditions without depending on an installation state and configuration of the tubular body. When an outer-circumferential surface of a welded portion of a cylindrical tubular body (2) is irradiated with a laser beam that circles around an outer circumference of the tubular body (2), a heating width W in a circumferential direction heated by the laser-beam irradiation and a laser-beam moving speed V in the circumferential direction are set so that a stress in the circumferential direction in an inner surface of the tubular body (2) produced by the heating with the laser beam is at least larger than a yielding stress of a material that the tubular body (2) is made of.

摘要翻译： 本发明的目的是提供一种用于改善管状体中的残余应力的方法和装置，其能够通过在不依赖于管状体的安装状态和构造的情况下清楚地限定治疗条件的控制，从而可靠地改善残余应力。 当圆筒形管体（2）的焊接部分的外圆周表面照射围绕管状体（2）的外周的激光束时，由激光器加热的圆周方向上的加热宽度W 光束照射和周向上的激光束移动速度V被设定为使得通过用激光束加热而产生的管状体（2）的内表面中的圆周方向的应力至少大于 产生管状体（2）制成的材料的应力。

公开(公告)号：US20090302012A1

公开(公告)日：2009-12-10

申请号：US12295823

申请日：2007-03-29

申请人： Takahiro Ota ,  Yoshiyuki Hemmi ,  Hironori Onitsuka ,  Noriaki Sugimoto ,  Kazuhiko Kamo ,  Shuho Tsubota ,  Itaru Muroya

发明人： Takahiro Ota ,  Yoshiyuki Hemmi ,  Hironori Onitsuka ,  Noriaki Sugimoto ,  Kazuhiko Kamo ,  Shuho Tsubota ,  Itaru Muroya

IPC分类号： B23K26/20

CPC分类号： C21D1/30 ,  B23K26/0626 ,  B23K26/0823 ,  B23K2101/06 ,  C21D1/34 ,  C21D9/08 ,  C21D9/50

摘要： An object is to provide a method and a system for improving a residual stress in a tube body, with which the residual stress can reliably be improved without heating excessively. From an irradiation start angle θs to a first predetermined angle θ1 on the tube body, an intensity of a laser beam is gradually increased from 0.5 to the steady output of 1.0 output ratio; from the first predetermined angle θ1 to a second predetermined angle θ2, the intensity of the laser beam is set at 1.0 output ratio; from the second predetermined angle θ2 to an irradiation end angle θe, the intensity of the laser beam is gradually decreased from the 1.0 output ratio to 0.5; and at the irradiation end angle θe, the intensity of the laser beam is set to 0. All these steps are performed at one turn of rotation in the method and the system for improving residual stress in the tube body.

摘要翻译： 本发明的目的是提供一种用于改善管体中的残余应力的方法和系统，通过该方法和系统可以可靠地改善残余应力而不会过度加热。 从照射起始角度到管体上的第一预定角度θ1，激光束的强度从0.5逐渐增加到1.0的输出比的稳定输出; 从第一预定角度θ1到第二预定角度θ2，将激光束的强度设定为1.0的输出比; 从第二预定角度θ2到照射端角θe，激光束的强度从1.0的输出比逐渐减小到0.5; 并且在照射端角θe处，激光束的强度被设定为0.所有这些步骤都是在该方法中的一圈旋转和用于改善管体中的残余应力的系统中进行的。

公开(公告)号：US20100326974A1

公开(公告)日：2010-12-30

申请号：US12521657

申请日：2008-01-11

申请人： Takahiro Ota ,  Kazuhiko Kamo ,  Itaru Muroya ,  Seiji Asada ,  Kazuhiro Wakabayashi ,  Koji Okimura ,  Hironori Onitsuka

发明人： Takahiro Ota ,  Kazuhiko Kamo ,  Itaru Muroya ,  Seiji Asada ,  Kazuhiro Wakabayashi ,  Koji Okimura ,  Hironori Onitsuka

IPC分类号： B23K26/02

CPC分类号： C21D1/34 ,  B23K26/282 ,  B23K31/027 ,  B23K31/125 ,  C21D1/09 ,  C21D1/30 ,  C21D9/08 ,  C21D9/50 ,  C21D11/00

摘要： An object is to provide a method and an apparatus for improving a residual stress in a tubular body, which are enabled to improve the residual stress reliably by clearly defining controlling rage for treatment conditions without depending on an installation state and configuration of the tubular body. When a cylindrical tubular body (2) is improved in its residual stress by locally irradiating an outer-circumferential surface of a welded portion (C) of the tubular body (2) with laser beams (5a) and by moving an irradiation area (s) in an circumferential direction, a plurality thermocouples (9) are installed on the tubular body (2) to be improved, a temperature history of the outer surface of the tubular body (2) by the irradiation of the laser beam (5a) is managed by measuring the temperature history itself.

摘要翻译： 本发明的目的是提供一种用于改善管状体中的残余应力的方法和装置，其能够通过在不依赖于管状体的安装状态和构造的情况下清楚地限定治疗条件的控制，从而可靠地改善残余应力。 当通过用激光束（5a）局部照射管状体（2）的焊接部分（C）的外周表面并且通过移动照射区域（s）来改善圆柱形管状体（2）的残余应力时 ），多个热电偶（9）被安装在管状体（2）上以提高，通过激光束（5a）的照射使管状体（2）的外表面的温度历史为 通过测量温度历史本身来管理。

公开(公告)号：US08637784B2

公开(公告)日：2014-01-28

申请号：US12521657

申请日：2008-01-11

申请人： Takahiro Ota ,  Kazuhiko Kamo ,  Itaru Muroya ,  Seiji Asada ,  Kazuhiro Wakabayashi ,  Koji Okimura ,  Hironori Onitsuka

发明人： Takahiro Ota ,  Kazuhiko Kamo ,  Itaru Muroya ,  Seiji Asada ,  Kazuhiro Wakabayashi ,  Koji Okimura ,  Hironori Onitsuka

IPC分类号： B23K9/028

CPC分类号： C21D1/34 ,  B23K26/282 ,  B23K31/027 ,  B23K31/125 ,  C21D1/09 ,  C21D1/30 ,  C21D9/08 ,  C21D9/50 ,  C21D11/00

摘要： An object is to provide a method and an apparatus for improving a residual stress in a tubular body, which are enabled to improve the residual stress reliably by clearly defining controlling rage for treatment conditions without depending on an installation state and configuration of the tubular body. When a cylindrical tubular body (2) is improved in its residual stress by locally irradiating an outer-circumferential surface of a welded portion (C) of the tubular body (2) with laser beams (5a) and by moving an irradiation area (s) in an circumferential direction, a plurality thermocouples (9) are installed on the tubular body (2) to be improved, a temperature history of the outer surface of the tubular body (2) by the irradiation of the laser beam (5a) is managed by measuring the temperature history itself.

摘要翻译： 本发明的目的是提供一种用于改善管状体中的残余应力的方法和装置，其能够通过在不依赖于管状体的安装状态和构造的情况下清楚地限定治疗条件的控制，从而可靠地改善残余应力。 当通过用激光束（5a）局部照射管状体（2）的焊接部分（C）的外周表面并且通过移动照射区域（s）来改善圆柱形管状体（2）的残余应力时 ），多个热电偶（9）被安装在管状体（2）上以提高，通过激光束（5a）的照射使管状体（2）的外表面的温度历史为 通过测量温度历史本身来管理。

公开(公告)号：US4636610A

公开(公告)日：1987-01-13

申请号：US789257

申请日：1985-10-18

申请人： Kazuhiko Kamo ,  Hiroshi Suwahara ,  Ryuji Nakane

发明人： Kazuhiko Kamo ,  Hiroshi Suwahara ,  Ryuji Nakane

IPC分类号： B23K9/12 ,  B23K9/073 ,  B23K9/127

CPC分类号： B23K9/0732

摘要： A feed length control device for a consumable electrode type welding machine in which the feed length of the electrode is made constant, making the resulting welds satisfactory and with a deep weld penetration. In accordance with the invention, the start of feed length control is delayed for a predetermined period of time from the time instant when the welding current value changes from the peak set value to the base set value.

摘要翻译： 一种用于消耗电极型焊接机的进料长度控制装置，其中电极的进料长度保持恒定，使得所得到的焊接满意并具有较深的焊接穿透性。 根据本发明，从焊接电流值从峰值设定值变为基准值的时刻起，进给长度控制的开始延迟规定的时间。

公开(公告)号：US20120175352A1

公开(公告)日：2012-07-12

申请号：US13395791

申请日：2010-06-10

申请人： Kazuhiko Kamo ,  Ryuichi Narita ,  Nobuyuki Hori

发明人： Kazuhiko Kamo ,  Ryuichi Narita ,  Nobuyuki Hori

IPC分类号： B23K26/00

CPC分类号： G21C13/02 ,  F16L5/022 ,  G21C13/036 ,  Y02E30/40

摘要： To provide a nozzle welding method which can be performed automatically and efficiently, and which can also be performed under the condition of a high-exposure amount. The nozzle welding method includes: a built-up groove forming process of forming a built-up groove portion by digging an inner surface of a vessel into a substantially cylindrical shape in a range including at least a J-groove; a build-up welding process of forming a built-up weld portion in the built-up groove portion by build-up welding in such a manner that a plug is configured by a plug main body portion having an inner end surface forming an extending portion of the outer surface of the built-up groove portion, and is also configured by a projecting portion projected from the inner end surface and having an axis center substantially coincident with the axis center of the build-up groove portion, and the plug is inserted into a nozzle hole so as to make the inner end surface substantially coincident with the outer surface of the built-up groove portion; a vessel side weld groove portion forming process of forming the J-groove in the build-up weld portion; and a nozzle attaching process of completing the J-groove portion by inserting the nozzle and welding the J-groove portion.

摘要翻译： 提供可以自动且有效地执行并且也可以在高曝光量的条件下进行的喷嘴焊接方法。 喷嘴焊接方法包括：通过在包括至少一个J形槽的范围内将容器的内表面开采成大致圆筒形的方式形成积层槽部分的积层槽形成工艺; 一种通过积层焊接在积层槽部中形成积层焊接部分的堆积焊接工艺，其中插头由插塞主体部分构成，插头主体部分具有形成延伸部分的内端面 并且还由从内端面突出并且具有与积聚槽部的轴心大致一致的轴心的突出部构成，插塞插入 进入喷嘴孔，以使内端表面基本上与积层槽部分的外表面一致; 在积层焊接部分中形成J形槽的容器侧焊接槽部分形成工艺; 以及通过插入喷嘴并焊接J形槽部来完成J形槽部的喷嘴附接工序。

公开(公告)号：US09024225B2

公开(公告)日：2015-05-05

申请号：US13132747

申请日：2009-06-25

申请人： Kazuhiko Kamo ,  Satoru Zenitani ,  Hirokazu Kadowaki ,  Naoki Yamasaki

发明人： Kazuhiko Kamo ,  Satoru Zenitani ,  Hirokazu Kadowaki ,  Naoki Yamasaki

IPC分类号： B23K9/067 ,  B23K9/073 ,  H05B1/00 ,  B23K9/02 ,  B23K9/04 ,  B23K9/095 ,  B23H1/02 ,  B23K9/173 ,  B23H1/00 ,  B23K9/167

CPC分类号： B23K9/0216 ,  B23H1/00 ,  B23H1/02 ,  B23K9/048 ,  B23K9/095 ,  B23K9/167 ,  B23K9/173 ,  B23K2101/06 ,  B23K2103/04

摘要： A clad welding method, which can prevent the occurrence of incomplete fusion, and can cover the surface of a base material over a wide range with a weld metal, while suppressing the dilution of the weld metal, by use of a relatively simple technique, is provided. For this purpose, a welding heat input is increased at a location where one end (10a) of a preceding weld bead (10) and the other end (20b) of a succeeding weld bead (20) overlap, as compared with a welding heat input at a location where the preceding weld bead (10) and the succeeding weld bead (20) do not overlap, to produce a deep penetration portion (12a) involving locally deep penetration (12).

摘要翻译： 可以通过使用相对简单的技术来抑制焊接金属的稀释，能够防止不完全熔融的发生，并且可以在焊接金属的宽范围内覆盖基材的表面，同时抑制焊接金属的稀释。 提供。 为此，与焊接热量相比，在前面的焊道（10）的一端（10a）和后面的焊道（20）的另一端（20b）重叠的位置处的焊接热输入增加 在前面的焊道（10）和后面的焊道（20）不重叠的位置处的输入，以产生涉及局部深度穿透（12）的深度穿透部分（12a）。

公开(公告)号：US20110259854A1

公开(公告)日：2011-10-27

申请号：US13132747

申请日：2009-06-25

申请人： Kazuhiko Kamo ,  Satoru Zenitani ,  Hirokazu Kadowaki ,  Naoki Yamasaki

发明人： Kazuhiko Kamo ,  Satoru Zenitani ,  Hirokazu Kadowaki ,  Naoki Yamasaki

IPC分类号： B23K9/04

CPC分类号： B23K9/0216 ,  B23H1/00 ,  B23H1/02 ,  B23K9/048 ,  B23K9/095 ,  B23K9/167 ,  B23K9/173 ,  B23K2101/06 ,  B23K2103/04

摘要： A clad welding method, which can prevent the occurrence of incomplete fusion, and can cover the surface of a base material over a wide range with a weld metal, while suppressing the dilution of the weld metal, by use of a relatively simple technique, is provided. For this purpose, a welding heat input is increased at a location where one end (10a) of a preceding weld bead (10) and the other end (20b) of a succeeding weld bead (20) overlap, as compared with a welding heat input at a location where the preceding weld bead (10) and the succeeding weld bead (20) do not overlap, to produce a deep penetration portion (12a) involving locally deep penetration (12).

摘要翻译： 可以通过使用相对简单的技术来抑制焊接金属的稀释，能够防止不完全熔融的发生，并且可以在焊接金属的宽范围内覆盖基材的表面，同时抑制焊接金属的稀释。 提供。 为此，与焊接热量相比，在前面的焊道（10）的一端（10a）和后面的焊道（20）的另一端（20b）重叠的位置处的焊接热输入增加 在前面的焊道（10）和后面的焊道（20）不重叠的位置处的输入，以产生涉及局部深度穿透（12）的深度穿透部分（12a）。