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1. 发明授权

US4238659A Preventing magnetization of pipe blank in GMA welding 失效
标题翻译：防止GMA焊接中管坯的磁化
公开(公告)号：US4238659A
公开(公告)日：1980-12-09
申请号：US011412
申请日：1979-02-12
申请人： Fusao Koshiga , Jinkichi Tanaka , Itaru Watanabe , Motoaki Suzuki , Toshifumi Kojima , Hiroyoshi Matsubara , Tatsumi Osuka , Kenji Takeshige , Takashi Nagamine , Osamu Hirano
发明人： Fusao Koshiga , Jinkichi Tanaka , Itaru Watanabe , Motoaki Suzuki , Toshifumi Kojima , Hiroyoshi Matsubara , Tatsumi Osuka , Kenji Takeshige , Takashi Nagamine , Osamu Hirano
IPC分类号： B23K9/08 , B23K9/025 , B23K9/073 , B23K31/06
CPC分类号： B23K9/0737
摘要： In longitudinally seam-welding a pipe-blank for welded steel pipe from the inside along a groove by the GMA welding process which comprises using direct electric current supplied to a plurality of consumable electrodes in tandem through at least one cable as the welding current, at least two even-numbered consumable electrodes are used, half of said consumable electrodes being connected to said direct current so as to be positive in polarity and the remaining half of said consumable electrodes being connected to said direct current so as to be negative in polarity, to enable lines of magnetic force produced by said direct electric current for welding flowing through said at least one cable introduced into said pipe-blank to cancel each other, thereby preventing magnetization of said pipe-blank and the resulting magnetic arc blow of the welding arc.
摘要翻译：在通过GMA焊接工艺沿着沟槽从内侧纵向焊接焊接钢管的管坯，其包括通过至少一根电缆作为焊接电流串联地供给多个可消耗电极的直流电流，使用至少两个偶数的可消耗电极，所述可消耗电极的一半连接到所述直流电，以使其极性为正，并且所述可消耗电极的剩余一半连接到所述直流电流以使其极性为负，以使由所述直流电流产生的电磁线能够流过通过所述至少一根引入到所述管坯中的电缆而彼此抵消，从而防止所述管坯的磁化和焊接电弧产生的电弧冲击。

2. 发明授权

US4110589A Method for longitudinally seam-welding pipe-blank for welded steel pipe from the inside along a groove 失效
标题翻译：焊缝钢管纵向缝焊管道的方法，沿内侧沿槽
公开(公告)号：US4110589A
公开(公告)日：1978-08-29
申请号：US771841
申请日：1977-02-24
申请人： Fusao Koshiga , Jinkichi Tanaka , Itaru Watanabe , Motoaki Suzuki , Toshifumi Kojima , Hiroyoshi Matsubara , Tatsumi Osuka , Kenji Takeshige , Takashi Nagamine , Osamu Hirano
发明人： Fusao Koshiga , Jinkichi Tanaka , Itaru Watanabe , Motoaki Suzuki , Toshifumi Kojima , Hiroyoshi Matsubara , Tatsumi Osuka , Kenji Takeshige , Takashi Nagamine , Osamu Hirano
IPC分类号： B23K9/08 , B23K9/025 , B23K9/073
CPC分类号： B23K9/0737
摘要： In longitudinally seam-welding a pipe-blank for welded steel pipe from the inside along a groove by the reverse-polarity GMA welding process comprising using direct electric current supplied to a consumable electrode through a cable as the welding current with said consumable electrode as the anode, the direction of said direct electric current for welding flowing through said cable introduced into said pipe-blank is set in the same direction as that of welding, thereby preventing occurrence of a magnetic arc blow of the welding arc from said consumable electrode toward the upstream side of the welding direction, i.e., in the opposite direction to that of welding.
摘要翻译：在通过反向极性GMA焊接方法从焊接钢管的内侧纵向地焊接焊接钢管的管坯时，包括使用通过电缆提供给可消耗电极的直流电作为与所述可消耗电极作为焊接电流的焊接电流阳极时，流入通过引入所述管坯的所述电缆的焊接的所述直流电流的方向设定为与焊接相同的方向，从而防止焊接电弧从所述可消耗电极朝向焊接方向的上游侧，即与焊接方向相反的方向。

3. 发明授权

US4341938A Method and apparatus for seam-welding steel pipes 失效
标题翻译：钢管焊缝方法及装置
公开(公告)号：US4341938A
公开(公告)日：1982-07-27
申请号：US215757
申请日：1980-12-12
申请人： Hiroyoshi Matsubara , Kenji Takeshige , Tatsumi Osuka , Takashi Nagamine , Osamu Hirano , Jinkichi Tanaka , Itaru Watanabe , Motoaki Suzuki
发明人： Hiroyoshi Matsubara , Kenji Takeshige , Tatsumi Osuka , Takashi Nagamine , Osamu Hirano , Jinkichi Tanaka , Itaru Watanabe , Motoaki Suzuki
IPC分类号： B23K9/025 , B23K9/02
CPC分类号： B23K9/0253
摘要： A method of longitudinally seam-welding steel pipes comprises the steps of providing a conductive net-like enclosure tube around a cable for supplying a direct electric current from the power source to the welding head; and conducting a direct electric current through the enclosure tube and through the steel pipe in a direction opposite to that in which the direct current runs through the cable. Apparatus for longitudinally seam-welding steel pipes comprises an electrical cable coupled to a welding head, a net tube surrounding the cable, and a device for supplying a direct electric current to the cable in a first direction and to the net enclosure tube and steel pipe in the opposite direction. The direct currents flowing in the enclosure tube and in the steel pipe is adjustably controlled to minimize the magnitude of a magnetic field created around the net enclosure tube and producing a welded steel pipe seam.
摘要翻译：一种纵向缝焊钢管的方法包括以下步骤：围绕电缆提供导电网状外壳管，用于从电源向焊接头提供直流电; 并且以与直流穿过电缆的方向相反的方向通过外壳管和通过钢管进行直流电流。用于纵向焊缝钢管的装置包括耦合到焊接头的电缆，围绕电缆的网管，以及用于沿第一方向向电缆提供直流电流的装置，以及连接到网壳管和钢管在相反的方向。可调节地控制在封闭管和钢管中流动的直流电流，以使得围绕网罩管产生的磁场的大小最小化并产生焊接的钢管接缝。

4. 发明授权

US4107503A Method for eliminating residual magnetism in pipe-blank for welded steel pipe longitudinally seam-welded from inside 失效
标题翻译：从内部纵向焊缝焊接钢管的管坯残留消除方法
公开(公告)号：US4107503A
公开(公告)日：1978-08-15
申请号：US776235
申请日：1977-03-10
申请人： Fusao Koshiga , Jinkichi Tanaka , Itaru Watanabe , Motoaki Suzuki , Toshifumi Kojima , Hiroyoshi Matsubara , Tatsumi Osuka , Kenji Takeshige , Takashi Nagamine , Osamu Hirano
发明人： Fusao Koshiga , Jinkichi Tanaka , Itaru Watanabe , Motoaki Suzuki , Toshifumi Kojima , Hiroyoshi Matsubara , Tatsumi Osuka , Kenji Takeshige , Takashi Nagamine , Osamu Hirano
IPC分类号： B23K9/08 , B23K9/025 , H01F13/00 , B23K31/06
CPC分类号： H01F13/006 , B23K9/0253
摘要： After longitudinally seam-welding a pipe-blank for welded steel pipe from the inside along a groove by the arc welding process which comprises using direct electric current supplied to a consumable electrode through a cable as the welding current, the polarity of said consumable electrode applied for said longitudinal seam-welding is switched over to the opposite polarity, an arc from said consumable electrode is ignited again on a tab plate attached to the end of said pipe-blank on the completion side of said longitudinal seam-welding to cause a direct electric current for eliminating magnetism to flow through said cable in the opposite direction to that of said direct electric current for welding, thereby eliminating residual magnetism in said pipe-blank produced by said direct electric current for welding flowing through said cable introduced into said pipe-blank during said longitudinal seam-welding.
摘要翻译：在通过电弧焊接方法从焊接钢管的内侧纵向地焊接用于焊接钢管的管坯，其包括使用通过电缆供给到可消耗电极的直流电流作为焊接电流，施加所述自耗电极的极性对于所述纵向焊缝切换到相反的极性，在所述纵向焊缝的完成侧上附接到所述管坯的端部的接片板上再次点燃来自所述可消耗电极的电弧，以引起直接用于消除磁通的方式与用于焊接的所述直流电流相反的方向流过所述电缆的电流，从而消除由所述直流电流产生的所述管坯中残留的磁性，在所述纵向焊缝期间坯料。

5. 发明授权

US4440584A Method and apparatus for cooling steel sheet 失效
标题翻译：冷却钢板的方法和装置
公开(公告)号：US4440584A
公开(公告)日：1984-04-03
申请号：US406932
申请日：1982-08-10
申请人： Kenji Takeshige , Kenji Hirabe , Yukifumi Ogawa , Kazuyoshi Arikata , Kazunori Yako , Kenichi Sakai , Toshinori Matsuo , Hiroshi Kamio
发明人： Kenji Takeshige , Kenji Hirabe , Yukifumi Ogawa , Kazuyoshi Arikata , Kazunori Yako , Kenichi Sakai , Toshinori Matsuo , Hiroshi Kamio
IPC分类号： B21B45/02 , C21D9/52 , C21D9/573
CPC分类号： B21B45/0233 , C21D9/573 , B21B45/0218
摘要： A method and an apparatus for cooling a steel sheet, which comprises: ejecting cooling water onto a steel sheet laid horizontally from above and from below said steel sheet immediately after the completion of hot rolling to cool said steel sheet; shielding each of the both side edge portions of the upper surface in the width direction of said steel sheet from said ejected cooling water by a shielding means movable in the width direction of said steel sheet so that the temperature distribution in the width direction of said steel sheet becomes uniform at the completion of the ejection of cooling water; and, determining a shielding width of each of said both side edge portions of said steel sheet, which is shielded from said ejected cooling water, on the basis of the width and the thickness of said steel sheet, the temperature and the flow rate per unit area of cooling water ejected onto the upper and the lower surfaces of said steel sheet, the period of time from start to completion of the ejection of cooling water, and the temperature distribution in the width direction of said steel sheet immediately before the start of the ejection of cooling water.
摘要翻译：一种用于冷却钢板的方法和装置，其特征在于包括：在热轧完成之后立即将冷却水喷射到钢板的上下水平地钢板上，以冷却所述钢板; 通过可沿所述钢板的宽度方向移动的屏蔽装置将所述钢板的宽度方向的上表面的两侧边缘部分从所述喷射的冷却水中屏蔽，使得所述钢的宽度方向上的温度分布在冷却水喷射完成时，片材变得均匀; 根据所述钢板的宽度和厚度，确定所述钢板的与所喷出的冷却水屏蔽的所述两个侧边缘部分的每个的屏蔽宽度，每单位的温度和流量喷射到所述钢板的上表面和下表面上的冷却水的面积，冷却水的喷射开始到结束的时间段以及刚刚开始之前的所述钢板的宽度方向的温度分布喷出冷却水。

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