公开(公告)号：US4442340A

公开(公告)日：1984-04-10

申请号：US434379

申请日：1982-10-14

申请人： Fumimaru Kawabata ,  Atsushi Shiga ,  Tadamasa Yamaguchi

发明人： Fumimaru Kawabata ,  Atsushi Shiga ,  Tadamasa Yamaguchi

IPC分类号： B23K9/00 ,  B23K9/08 ,  B23K9/18

CPC分类号： B23K9/188

摘要： A four-electrode submerged arc welding process employs connections of four electrodes aligned in one row for alternating current source so that electromagnetic force Fx.sub.4 in a direction opposite to a welding direction acting upon a middle point of the arc from the rearmost electrode is within -25.ltorsim.Fx.sub.4 .ltorsim.-10 (N/m). The connections are preferably selected such that phase differences among currents applied to the three electrodes other than the frontmost or rearmost electrode are 120.degree., respectively, and a phase difference of the remaining frontmost or rearmost electrode is within 0.degree..+-.30.degree. relative to the furthermost electrode.With such connections of the four electrodes, the four-electrode submerged arc welding process remarkably prevents welding defects such as undercuts even at higher welding speeds.

摘要翻译： 四电极埋弧焊工艺采用一行排列的四个电极用于交流电源的连接，使得电磁力和上升沿与沿着最远的电极的电弧的中点作用的焊接方向相反的方向的Fx4在 - 25大概和上限和Fx4大概-10（N / m）。 优选选择连接，使得施加到除最前面或最后电极之外的三个电极的电流之间的相位差分别为120°，并且剩余的最前面或最后电极的相位差相对于0°+/- 30° 到最远的电极。 通过四个电极的这种连接，即使在较高的焊接速度下，四电极埋弧焊工艺也显着地防止焊接缺陷如底切。

公开(公告)号：US07918056B2

公开(公告)日：2011-04-05

申请号：US12226926

申请日：2007-05-01

申请人： Tadamasa Yamaguchi

发明人： Tadamasa Yamaguchi

IPC分类号： E02D27/00

CPC分类号： E04H9/12 ,  E02D29/045 ,  E02D29/05

摘要： A hole is drilled at a depth of about 5 to 6 m from the ground surface, a shelter outer shell floor slab 3 is provided, and a shelter inner shell 1 is provided thereon. Next, a load-bearing partition wall 6 is provided in the shelter inner shell 1, and thereafter a shelter outer shell 2 is provided and integrated. If required, a neutron beam-shielding shell 4 is provided at the outer surface-side of the wall section and the ceiling section of the shelter outer shell 2 or the shelter inner shell 1-side to subsequently backfill the beam-shielding shell 4.

摘要翻译： 在距离地面大约5至6米的深度处钻有一个孔，设置一个防护罩外壳楼板3，并在其上设置一个防护罩内壳1。 接下来，在承载内壳1中设置承重隔壁6，之后设置收容外壳2并一体化。 如果需要，在壁部的外表面侧和防护罩外壳2的顶棚部分或防护罩内壳1侧设置中子束屏蔽壳体4，以随后回填光束屏蔽壳体4。

公开(公告)号：US5171958A

公开(公告)日：1992-12-15

申请号：US744328

申请日：1991-08-13

申请人： Tadamasa Yamaguchi ,  Yoshimitsu Meguro ,  Saburo Hayashi ,  Matsushige Nakajima

发明人： Tadamasa Yamaguchi ,  Yoshimitsu Meguro ,  Saburo Hayashi ,  Matsushige Nakajima

IPC分类号： B23K9/18 ,  B23K35/30 ,  B23K35/362

CPC分类号： B23K9/188 ,  B23K35/3073 ,  B23K35/362

摘要： A high-efficiency fillet welding method for conducting, without edge preparation, T-shape fillet welding of thick steel webs having a C content not more than 0.21 wt %. The welding is conducted by using a leading electrode (L) and a trailing electrode (T) composed of wires of about 4.8 to 6.4 mm diameter and containing C in an amount which meets the condition of formula (1), as well as 1.50 to 2.50 wt % of Mn. The welding is executed in such a manner that the ratio I.sub.T /I.sub.L of the current I.sub.T supplied to the trailing electrode (T) to the current I.sub.L supplied to the leading electrode (L) ranges from 0.75 to 1.00. The flux used in the welding is a bonded flux containing 60 to 91 wt % in total of SiO.sub.2, MgO and CaO, 5 to 30 wt % in total of TiO.sub.2, Al.sub.2 O.sub.3 and CaF.sub.2, 2 to 8 wt % of metal powder, said flux containing a carbonate gas-forming component in an amount to generate 2 to 10 wt % of gases by thermal decomposition of said carbonate during welding, and the balance incidental impurities, the flux having a bulk specific gravity of 0.80 to 1.20 g/cm.sup.3 :0.39C.sub.WIRE 0.39C.sub.WEB +0.22C.sub.FLANGE .ltoreq.0.135 (1)whereC.sub.WIRE is the C content of the wire (wt %),C.sub.WEB is the C content of the web (wt %) and is .ltoreq.0.21, andC.sub.FLANGE is the C content of the flange (wt %) and is .ltoreq.0.21.

摘要翻译： 一种高效角焊接方法，用于对C含量不超过0.21重量％的厚钢网进行T型角焊焊接，无需边缘准备。 通过使用由直径约4.8至6.4mm的线构成的包含C的量的前导电极（L）和后端电极（T）进行焊接，其量为满足式（1）的条件，以及1.50至 2.50重量％的Mn。 以如下方式执行焊接：向提供给引导电极（L）的电流IL提供给后端电极（T）的电流IT的比值IT / IL为0.75至1.00。 焊接中使用的焊剂是含有60〜91重量％的SiO 2，MgO和CaO，5.0〜30重量％的TiO 2，Al 2 O 3和CaF 2，2〜8重量％的金属粉末，所述焊剂 含有碳酸盐气体形成组分，其量通过在焊接期间所述碳酸酯的热分解而产生2至10重量％的气体，并且平衡附带的杂质，堆积比重为0.80至1.20g / cm 3的通量为0.39 CWIRE0.39CWEB + 0.22CFLANGE

公开(公告)号：US20090064604A1

公开(公告)日：2009-03-12

申请号：US12226926

申请日：2007-05-01

申请人： Tadamasa Yamaguchi

发明人： Tadamasa Yamaguchi

IPC分类号： E02D29/05 ,  E04H9/12

CPC分类号： E04H9/12 ,  E02D29/045 ,  E02D29/05

摘要： A hole is drilled at a depth of about 5 to 6 m from the ground surface, a shelter outer shell floor slab 3 is provided, and a shelter inner shell 1 is provided thereon. Next, a load-bearing partition wall 6 is provided in the shelter inner shell 1, and thereafter a shelter outer shell 2 is provided and integrated. If required, a neutron beam-shielding shell 4 is provided at the outer surface-side of the wall section and the ceiling section of the shelter outer shell 2 or the shelter inner shell 1-side to subsequently backfill the beam-shielding shell 4.

摘要翻译： 在距离地面大约5至6米的深度处钻有一个孔，设置一个防护罩外壳楼板3，并在其上设置一个防护罩内壳1。 接下来，在承载内壳1中设置承重隔壁6，之后设置收容外壳2并一体化。 如果需要，在壁部的外表面侧和防护罩外壳2的顶棚部分或防护罩内壳1侧设置中子束屏蔽壳体4，以随后回填光束屏蔽壳体4。

公开(公告)号：US5004884A

公开(公告)日：1991-04-02

申请号：US454920

申请日：1989-12-22

申请人： Shuichi Sakaguchi ,  Tadamasa Yamaguchi ,  Itaru Yamashita

发明人： Shuichi Sakaguchi ,  Tadamasa Yamaguchi ,  Itaru Yamashita

IPC分类号： B23K9/18 ,  B23K33/00 ,  B23K35/36

CPC分类号： B23K35/3602 ,  B23K33/00 ,  B23K9/18

摘要： A method of submerged arc welding of thick steel plates with a large heat input and flux for submerged arc welding which comprises: forming a groove having a multi-angle shape which has at least two different angular inclination when a single side submerged arc welding for perfect penetration is conducted under a condition of an welding heat input of 100 to 1000 kJ/cm; using submerged arc welding flux SiO.sub.2 : 5 to 28% by weight, MgO: 15 to 35% by weight, CaO: 5 to 15% by weight, CaF.sub.2 : 2 to 20% by weight, Al.sub.2 O.sub.3 : 5 to 15% by weight, and TiO.sub.2 : 2 to 10% by weight as the main components, and containing iron powder by 30% by weight or less and either or both of Si and Mn in the metallic form by 10% by weight, the submerged arc welding flux having a particle size distribution arranged such that the proportion of the particle size distribution arranged such that the proportion of the particle which have a size finer than 36 mesh is 20% by weight or less and the proportion of the particles which have a size 14 mesh or finer but 36 mesh or rougher is 60% by weight or more; and conducting the welding.

摘要翻译： 一种用于埋弧焊的大型热输入和焊剂的厚钢板的埋弧焊接方法，包括：当单侧埋弧焊接完美时，形成具有至少两个不同角度倾角的多角度形状的槽 在100〜1000kJ / cm的焊接热输入条件下进行穿透; 使用埋弧焊剂SiO 2：5〜28重量％，MgO：15〜35重量％，CaO：5〜15重量％，CaF 2：2〜20重量％，Al 2 O 3：5〜15重量％ 和TiO 2：2〜10重量％作为主要成分，并且含有30重量％以下的铁粉和金属形式的Si和Mn中的任一种或两者为10重量％，所述埋弧焊剂具有 粒度分布布置成使得粒度分布的比例被布置成使得具有比36目精细的尺寸的颗粒的比例为20重量％以下，并且具有14目或更细的尺寸的颗粒的比例 但36目或更粗糙度为60重量％以上; 并进行焊接。