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1. 发明专利

JP2003290921A Multi-layer welding method, and multi-layer automatic welding equipment 有权
标题翻译：多层焊接方法和多层自动焊接设备
公开(公告)号：JP2003290921A
公开(公告)日：2003-10-14
申请号：JP2002089608
申请日：2002-03-27
申请人： Hitachi Ibaraki Business Engineering:Kk , Hitachi Kyowa Engineering Co Ltd , Hitachi Ltd , Hitachi Setsubi Eng Co Ltd , 日立協和エンジニアリング株式会社 , 日立設備エンジニアリング株式会社 , 株式会社日立茨城ビジネスエンジニアリング , 株式会社日立製作所
发明人： IMANAGA AKIYOSHI , HANEDA MITSUAKI , SHIBATA NOBUO , KOBAYASHI MASAHIRO , SATO TOSHIMI , TOYODA SEIICHI , AKIBA NOBUHIKO
IPC分类号： B23K37/02 , B23K9/09 , B23K9/095 , B23K9/127
摘要： PROBLEM TO BE SOLVED: To provide a multi-layer welding method and multi-layer automatic welding equipment for obtaining excellent welding of full penetration without hot cracks suitable for a welded structure of a double-V groove joint of poor dimensional accuracy such as gap changes and meandering of the weld line. SOLUTION: The groove of the double-V groove joint of a thick and long member is limited to a range of 30-40° narrower than a conventional groove. The pulse welding pattern to transfer one droplet by one pulse of a high current, a plurality of average currents and other average currents on a filled layer and a finished layer by the gap width range to be output in the root running are set. In the root running, the average current and the average voltage corresponding to the gap width are output in a stepped manner in a controlled manner based on the detection information on the positional deviation in the right-to- left direction and the vertical direction of the gap width and the groove center of the groove part. The deposition area, the welding speed, and the weaving width, and the condition parameters such as the frequency are calculated, and the positional deviation of the torch in the right-to-left direction and the vertical direction of the weld line is corrected. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供一种多层焊接方法和多层自动焊接设备，用于获得完全穿透的优良焊接，而没有适合于尺寸精度差的双V槽接头的焊接结构的热裂纹随着焊缝的间隙变化和蜿蜒曲折。
解决方案：厚的和长的构件的双V槽接头的槽限于比常规槽窄30-40°的范围。设置脉冲焊接图案，以将填充层和成品层上的高电流，多个平均电流和其他平均电流的一个脉冲的一个液滴传送到根运行中输出的间隙宽度范围。在根运行中，与间隙宽度对应的平均电流和平均电压基于关于左右方向的位置偏差和垂直方向的检测信息以受控的方式以阶梯式输出间隙宽度和凹槽部分的槽中心。计算沉积面积，焊接速度和织造宽度以及诸如频率的条件参数，并且修正焊枪在焊接线的左右方向和垂直方向上的位置偏差。版权所有（C）2004，JPO

2. 发明专利

JP2004017088A Multi-layer welding method and multi-layer automatic welding apparatus 有权
公开(公告)号：JP2004017088A
公开(公告)日：2004-01-22
申请号：JP2002175174
申请日：2002-06-17
申请人： Hitachi Kyowa Engineering Co Ltd , Hitachi Ltd , 日立協和エンジニアリング株式会社 , 株式会社日立製作所
发明人： IMANAGA AKIYOSHI , HANEDA MITSUAKI , SHIBATA NOBUO , SATO TOSHIMI , TOYODA SEIICHI
IPC分类号： B23K9/095 , B23K9/12 , B23K9/127
摘要： PROBLEM TO BE SOLVED: To provide a multi-layer welding method and a multi-layer automatic welding apparatus suitable for obtaining excellent welding of full penetration having no defect for a work to be welded for a bevel coupling having a decrease in dimensional accuracy such as a gap change and meandering of a welding line. SOLUTION: A plurality of mean currents by a pulse welding waveform to transfer one droplet in one pulse of a high current and by a gap width range to be outputted in a root run and other mean currents in a filled layer and a finish layer are set. In the root run, the mean current and the mean voltage corresponding to the gap width are increased/decreased in a stepped manner and outputted based on detection information on the gap width of a groove part and the positional deviation of the groove center in the right-to-left and vertical directions, and condition parameters such as the welding area, the welding speed, and the weaving width related to the gap width are calculated and increased/decreased to correct the positional deviation of a torch in the right and left direction and the vertical direction of the weld line. COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2004268076A Automatic welding method and automatic welding apparatus 审中-公开
公开(公告)号：JP2004268076A
公开(公告)日：2004-09-30
申请号：JP2003060783
申请日：2003-03-07
申请人： Hitachi Kyowa Engineering Co Ltd , Hitachi Ltd , 日立協和エンジニアリング株式会社 , 株式会社日立製作所
发明人： IMANAGA AKIYOSHI , HANEDA MITSUAKI , SEKI TATSURO , TOYODA SEIICHI , SATO TOSHIMI
IPC分类号： B23K9/09 , B23K9/095 , B23K9/127 , H02M9/00
摘要： PROBLEM TO BE SOLVED: To provide a welding method and a welding apparatus which are suitable to change the length of a power feeding cable used in arc welding using a welding wire as an electrode.
SOLUTION: In the a welding work of joint members which requires to change the length of the power feeding cable, average welding voltage E in which average arc voltage Va corresponding to the magnitude of desired average welding current Ia, the predicted value of first cable voltage Vk1 which is consumed by average welding current Ia which flows the round-trip length of a changed power feeding cable and first reactor voltage V
L 1 which is consumed in a reactor on a welding circuit are preliminarily added is set to a pulse welding power source 10 and desired average arc voltage Va is outputted in an arc welding part. By setting the pulse voltage Vp or the pulse current Ip is set by which a second reactor voltage Vk2 which is consumed by the pulse current Ip which flows the round-trip length of the changed power feeding cable and a second reactor voltage V
L 2 which is consumed in the reactor on the welding circuit can be replenished and outputting the desired pulse current Ia and the pulse arc voltage Va, welding is performed.
COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2004209485A Welding method and welding device 有权
公开(公告)号：JP2004209485A
公开(公告)日：2004-07-29
申请号：JP2002378872
申请日：2002-12-27
申请人： Hitachi Kyowa Engineering Co Ltd , Hitachi Ltd , 日立協和エンジニアリング株式会社 , 株式会社日立製作所
发明人： IMANAGA AKIYOSHI , HANEDA MITSUAKI , SEKI TATSURO , TOYODA SEIICHI , SATO TOSHIMI
IPC分类号： B23K9/09 , B23K9/095 , B23K9/127
摘要： PROBLEM TO BE SOLVED: To provide a welding method suitable for changes of the length of a feeding cable to be used for arc welding in which a welding wire is used as an electrode, and a device.
SOLUTION: Average welding voltage E is obtained by previously adding average arc voltage Va corresponding to the magnitude of a desired average welding current Ia, an estimated value of first cable voltage Vk1 to be consumed by the average welding current Ia to flow in the reciprocating length (the shortest is 30 m and the longest is 150 m) of the changed feeding cable, and first reactor voltage VL1 to be consumed by a reactor in a welding circuit. It is set to a welding power source 10. The desired average arc voltage Va is outputted at an arc welding part. Also, pulse voltage Vp or a pulse current Ip, which can supplement second cable voltage Vk2 to be consumed by a pulse current Ip to flow in the reciprocating length of the changed feeding cable and second reactor voltage VL2 to be consumed by the reactor in the welding circuit, are set. The welding is executed by outputting the desired pulse current Ia and the pulse arc voltage Va.
COPYRIGHT: (C)2004,JPO&NCIPI

5. 发明专利

JP2006136911A Tube welding method and tube welding device 有权
标题翻译：管式焊接方法和管道焊接装置
公开(公告)号：JP2006136911A
公开(公告)日：2006-06-01
申请号：JP2004327317
申请日：2004-11-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YANAGIDA NOBUYOSHI , SAITO NOBORU , HAYASHI SHOJI , SUGANO SATOSHI , ENOMOTO KUNIO , HANEDA MITSUAKI , KOIDE HIROO
IPC分类号： B23K9/028 , B23K9/00 , B23K9/23 , B23K31/00 , B23K101/06
摘要： PROBLEM TO BE SOLVED: To provide a tube welding method and a tube welding device capable of enhancing the corrosion resistance by exerting the compressive residual stress in the axial direction in a weld metal portion on an inner face of a tube in the connection by welding tubes of large tube thickness to each other.
SOLUTION: After root passes of tubes are welded, the surface of the tubes is quenched by spraying cooling water in the stage of high temperature immediately after the molten metal is solidified behind a torch to perform the welding on the outer surface of the tubes while cooling the inner surface by allowing cooling water to flow on the inner surface of the tubes. The compressive stress is generated on the outer surface side of the tubes to suppress generation of shrink-deformation in the circumferential direction of the tubes, and generate the compressive residual stress as the residual stress in the axial direction of the inner surface of the tube.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种管焊接方法和管焊装置，其能够通过在连接中的管的内表面上的焊接金属部分中施加轴向的压缩残余应力来提高耐腐蚀性通过焊接较大管厚度的管彼此。
解决方案：焊管根管通过之后，在熔融金属固化在焊炬后立即在高温阶段喷洒冷却水来淬火管表面，以在焊接的外表面上进行焊接同时通过允许冷却水在管的内表面上流动而冷却内表面。在管的外表面侧产生压缩应力，以抑制管的圆周方向的收缩变形的产生，并且产生作为管的内表面的轴向的残留应力的压缩残余应力。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005021939A Seal welding method for small diameter hole and its automatic welding device 有权
标题翻译：小直径密封焊接方法及其自动焊接装置
公开(公告)号：JP2005021939A
公开(公告)日：2005-01-27
申请号：JP2003189940
申请日：2003-07-02
申请人： Hitachi Ltd , Hitachi Maxell Ltd , 日立マクセル株式会社 , 株式会社日立製作所
发明人： IMANAGA AKIYOSHI , HANEDA MITSUAKI , INAGAKI MASATOSHI , WATANABE OSAMU , SOMATOMO YOSHIKI , HIRASAWA SHIGEKI
IPC分类号： B23K9/167 , B23K9/02 , B23K9/29
摘要： PROBLEM TO BE SOLVED: To provide a seal welding method for a small diameter hole, by which the small diameter hole provided on the surface of a metal plate of a small article can be easily welded in a short time and can be surely and completely sealed, and a high quality welding part with the smooth surface after welding can be obtained, and to also provide its automatic welding device. SOLUTION: The seal welding method is composed so as to seal the small diameter hole by inserting a sealing plug 3 to the small diameter hole 4 provided on the surface of a metal base material 2 which is a lid plate or a flat plate of a container 1 for the small article. A circular or polygonal thin wall thickness part 5b, in which the vicinity of the small diameter hole is in a plane shape, is formed on the rear face side of the metal base material. A circular or polygonal overhanging part 3a, whose outer diameter is larger than the inner diameter of the small diameter hole, is formed to the head part of the sealing plug. The seal welding is executed by melting the sealing plug and the thin wall thickness part of the metal base material by an arc heat source from a welding torch after inserting the sealing plug into the small diameter hole. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种小直径孔的密封焊接方法，通过该密封焊接方法可以在短时间内容易地焊接小型制品的金属板的表面上的小直径孔，并且可以肯定地并完全密封，可以获得焊接后光滑表面的优质焊接部件，并提供自动焊接装置。解决方案：密封焊接方法是通过将密封塞3插入到设置在作为盖板或平板的金属基材2的表面上的小直径孔4上来密封小直径孔的小物品的容器1。在金属基材的背面侧形成有圆形或多边形的薄壁部5b，其中小直径孔附近为平面形状。在密封塞的头部形成有外径大于小直径孔的内径的圆形或多边形突出部3a。在将密封塞插入小直径孔之后，通过来自焊炬的电弧热源将金属基材的密封塞和薄壁部分熔化，进行密封焊接。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2006205183A Multi-layer welding structure of stainless steel 审中-公开
标题翻译：不锈钢多层焊接结构
公开(公告)号：JP2006205183A
公开(公告)日：2006-08-10
申请号：JP2005017178
申请日：2005-01-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： RA SHOGUN , KOIDE HIROO , HANEDA MITSUAKI , IMANAGA AKIYOSHI , OBANA TAKESHI
IPC分类号： B23K9/23 , B23K9/167 , B23K9/173 , B23K103/04
摘要： PROBLEM TO BE SOLVED: To provide a multi-layer welding structure of a stainless steel capable of performing the multi-layer welding from the initial layer back-bead welding of a groove bottom part to the final layer welding of a groove upper face part on a groove joint of a thick plate, and changing the tensile stress residual in a weld portion on a back face side after completion of welding to the compressive stress. SOLUTION: In the multi-layer welding structure of a stainless steel in which joint members 1, 2 with an end of the stainless steel grooved butted to each other, a welding wire is melted to form a multi-layer welded portion by the pulse arc welding or the DC arc welding of the consumable electrode type or a non-consumable electrode type, and the joint members are welded to each other, an austenitic welding wire is melted and solidified to the height of 1/5 to 4/5 of the thickness of the joint member from the back side of the groove to form an initial back-bead weld part, a martensitic welding wire is melted and solidified to an upper face of the groove to provide compressive stresses in a weld part on the groove back face side and in a vicinity thereof. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供能够进行多层焊接的多层焊接结构，从槽底部的初始层回珠焊接到槽上部的最终层焊接面对部分在厚板的槽接头上，并且在焊接完成之后将背面侧的焊接部分中的拉伸应力残余变化为压缩应力。解决方案：在不锈钢的多层焊接结构中，其中不锈钢端部彼此对接的接合构件1,2将焊丝熔化以形成多层焊接部分，由可消耗电极型或非消耗性电极型的脉冲电弧焊接或直流电弧焊接，接合部件彼此焊接，使奥氏体焊丝熔化固化至1/5〜4 / 5，从槽的背面形成接合构件的厚度，以形成初始的后珠焊接部，马氏体焊丝熔化并固化到槽的上表面，从而在焊接部上形成压应力凹槽背面侧及其附近。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2006192437A Welding equipment 审中-公开
标题翻译：焊接设备
公开(公告)号：JP2006192437A
公开(公告)日：2006-07-27
申请号：JP2005003297
申请日：2005-01-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IMANAGA AKIYOSHI , HANEDA MITSUAKI , OBANA TAKESHI , KATO MITSUO , KOIDE HIROO
IPC分类号： B23K9/095
摘要： PROBLEM TO BE SOLVED: To provide welding equipment capable of forming a back bead which is free from any recess on a back side, projecting in shape and substantially uniform by adequately performing the pulse arc welding or the DC arc welding to a groove joint with tubular members or flat plate members formed of a thick plate butted to each other. SOLUTION: A first image pickup means to pick up an image of a molten pool on a back side and a peripheral part thereof and an illumination means are arranged at the position on the back side opposite to the position of an electrode. A first image display means is arranged, which displays on a screen images of the molten pool on the back side picked up by the first image pickup means and the images of the peripheral part thereof, the dimensions to indicate the size of the images, the width of the molten pool on the back side, and the width of a back bead in a vicinity of the molten pool, and a specified value to indicate an adequate range of the width of the back bead to be formed by the root running. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供能够形成后边缘的后边缘的焊接设备，其通过适当地执行脉冲电弧焊接或直流电弧焊接到凹槽来形成并基本上均匀的凹凸与由彼此对接的厚板形成的管状构件或平板构件接合。解决方案：在与电极位置相反的背面上的位置处布置有用于拾取其背侧及其周边部分上的熔池的图像和照明装置的第一图像拾取装置。布置第一图像显示装置，其在由第一图像拾取装置拾取的背面上的熔池的屏幕图像和其周边部分的图像上显示用于指示图像的尺寸的尺寸，背面侧的熔池的宽度以及熔池附近的后胎圈的宽度，以及指定由根部行驶形成的后胎圈的宽度的适当范围的规定值。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2006159226A Back-bead welding method 审中-公开
标题翻译：背面焊接方法
公开(公告)号：JP2006159226A
公开(公告)日：2006-06-22
申请号：JP2004352149
申请日：2004-12-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IMANAGA AKIYOSHI , HANEDA MITSUAKI , OBANA TAKESHI , INAGAKI MASATOSHI , KOIDE HIROO
IPC分类号： B23K9/167 , B23K9/028 , B23K9/095 , B23K9/23 , B23K103/04 , B23K103/08
摘要： PROBLEM TO BE SOLVED: To provide a method of suitably forming a nearly uniform back bead width in a projected shape with no recess on the rear face by properly executing pulsed arc welding or DC arc welding using a non-consumable tungsten electrode, in a groove joint that requires back-bead formation on the rear face of a narrow groove bottom.
SOLUTION: One or more conditions are adjusted or controlled among a peak current, base current, peak voltage or average arc voltage, or arc length, welding speed or travelling speed of pulsed arc welding; or, in addition to the above conditions, one or more conditions are adjusted or controlled including a wire feeding speed during the peak current or the base current time or a wire feeding speed during both times. Otherwise, one or more conditions are adjusted or controlled among the average current, average arc voltage or arc length, welding speed or travelling speed, and wire feeding speed of DC arc welding, and then, a molten pool width on the rear face or the back-bead width near this molten pool is formed in the range of 4-6 mm which is a specific value.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过适当地执行使用非消耗性钨电极的脉冲电弧焊或直流电弧焊，提供适当地形成背面没有凹部的突出形状的几乎均匀的后边缘宽度的方法，在需要在窄槽底部的后表面上形成后珠的凹槽接头中。
解决方案：在峰值电流，基极电流，峰值电压或平均电弧电压或电弧长度，焊接速度或脉冲电弧焊接的行进速度之间调整或控制一个或多个条件; 或者除了上述条件之外，在峰值电流或基准电流时间期间调整或控制一个或多个条件，包括馈线速度，或在两次期间的送丝速度。否则，在平均电流，平均电弧电压或电弧长度，焊接速度或行进速度以及直流电弧焊接的送丝速度之间调整或控制一个或多个条件，然后在背面或在该熔池附近的后边缘宽度形成为4-6mm的范围，这是特定值。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2004330227A Bead patching method for circumferential multilayer welding, and automatic welding equipment 有权
公开(公告)号：JP2004330227A
公开(公告)日：2004-11-25
申请号：JP2003127643
申请日：2003-05-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IMANAGA AKIYOSHI , HANEDA MITSUAKI , SHIBATA NOBUO , SEKI TATSURO , KOIDE HIROO
IPC分类号： B23K9/167 , B23K9/028 , B23K9/095 , B23K9/127
摘要： PROBLEM TO BE SOLVED: To obtain a satisfactory circumferential weld bead to a tubular material bevel joint requiring multilayer welding and bead patching per welding pass by nonconsumable electrode pulse arc welding or direct current arc welding. SOLUTION: The welding starting position on the 1st pass in the initial layer is set to the position same as the previously instructed torch standard position, and each welding starting position from the 2nd pass after the initial layer to the N-th pass in the final layer is set to the position advanced or retreated from the torch standard position to the direction of a welding line by a first prescribed angle or by a first prescribed distance. On the finishing side of the bead patching part in circumferential welding, each welding finishing position from the 1st pass in the initial layer to the N-th pass in the final layer is set to the position advanced by a second prescribed angle or a second prescribed distance from the position obtained by making a round from each welding starting position to the direction of the welding line. Then, the previously set welding condition parameters per welding pass in the previously set regular welding section and the welding starting-finishing conditions between the welding starting section and the finishing section are output, and pulse arc welding or direct current arc welding are performed. COPYRIGHT: (C)2005,JPO&NCIPI

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