专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPS6210212A PRODUCTION OF BEND PIPE 失效
公开(公告)号：JPS6210212A
公开(公告)日：1987-01-19
申请号：JP14946785
申请日：1985-07-08
申请人： NIPPON KOKAN KK , KOBE STEEL LTD
发明人： AKAO KAZUTAKA , ISHIHARA TOSHIRO , KITADA TOYOFUMI , OKUDA NAOKI , WADA TAKASHI , HASE KAORU
IPC分类号： B21D7/16 , B21D7/00 , C21D8/10 , C21D9/08 , C22C38/00 , C22C38/14 , C22C38/16
摘要： PURPOSE:To produce a large-diameter bend pipe having excellent low-temp. toughness and strength in the bent part and straight part by adequately selecting the compsn. and heat treatment conditions of a molten metal in the stage of producing the large-diameter bend pipe by welding a steel plate by a submerged arc welding method and bending the welded pipe by bending. CONSTITUTION:The metal of the compsn. basically composed of 0.05-0.15% C, =1 kinds among =5min at 550-700 deg.C and is thus tempered.

2. 发明专利

JPS5966979A Submerged arc welding of spiral steel pipe 失效
标题翻译：螺旋钢管的焊接弧焊
公开(公告)号：JPS5966979A
公开(公告)日：1984-04-16
申请号：JP16724682
申请日：1982-09-25
申请人： Kobe Steel Ltd , Nippon Kokan Kk
发明人： HIRABAYASHI KIYOTERU , AKAO KAZUTAKA , TOUMA HIDEO , OKUDA NAOKI , WADA TAKASHI , HASE KAORU
IPC分类号： B23K9/18 , B23K9/032 , B23K35/36 , B23K35/362
CPC分类号： B23K35/3608
摘要： PURPOSE:To produce a spiral steel pipe having no joint defect with good productivity by using a sintered flux having a specific compsn. and specific grain size and adjusting the eccentricity of the 1st electrode in an adequate range in performing multielectrode submerged arc welding. CONSTITUTION:A sintered flux which contains 20-40wt% SiO2, 20-50% TiO2, 5-20% MgO, 2-20% amount expressed in terms of MnO, Mn source such as metallic Mn, Fe-Mn, MnO2 or the like and 3-20% inorg. fluoride as essential components, satisfies 64% =10 mesh and
摘要翻译：目的：通过使用具有特定组成的烧结焊剂，生产出不具有良好生产率的接头缺陷的螺旋钢管。和特定的晶粒尺寸，并且在执行多电极埋弧焊时在适当的范围内调整第一电极的偏心度。构成：以MnO表示的20-40重量％SiO 2，20-50重量％TiO 2，5-20重量％MgO，2-20重量％的烧结助熔剂，Mn源如金属Mn，Fe-Mn，MnO 2或喜欢和3-20％inorg。氟化物作为必需组分，满足64％<=（SiO 2 + TiO 2 + MgO）<= 90％，并且包含颗粒大小由<= 20％粗颗粒> = 10目和<= 50％ <= 70目。在满足方程式1-pi / 20R <= x <= 1-pi / 60R的条件下，通过卷取钢带的螺旋钢管的内侧经受具有多个电极的高速埋弧焊接（其中x：第一电极的偏心度，R：螺旋钢管的半径，l：火山口的长度）。

3. 发明专利

JPH05248553A 失效
公开(公告)号：JPH05248553A
公开(公告)日：1993-09-24
申请号：JP4482492
申请日：1992-03-02
申请人： TOKYO GAS CO LTD , NIPPON KOKAN KK , JAPAN STEEL & TUBE CONSTR
发明人： YOSHIDA KENTARO , FUJIMAKI TERUAKI , AKAO KAZUTAKA , TSURUMAKI TOMIO , KITO TOMIYUKI , NEMOTO MINORU , KAWAI TOSHIAKI , UNEMOTO YASUO
IPC分类号： F16K27/00 , F16L41/02 , F16L55/00
摘要： PURPOSE:To reduce a pressure loss with a valve using a fitting for hot tap. CONSTITUTION:A valve 1 built into a fitting having a branch pipe connecting section has a sealing plug 4 sealed and fixed to a neck section fitting 3, and a center shaft 7 penetrating the plug 4 in sealed state with a lower end supported on a lower fitting 16. This valve 1 is so made that the center shaft 7 is fitted with a plurality of jacks 62 in such a way as vertically movable and causing the advance and retreat of a stopper 64 for sealing the cutout end of a piping, and a plurality of control rods 12 penetrating the plug 4 in sealed state for operating and positioning the jacks 62.

4. 发明专利

JPS6050150A STEEL HAVING EXCELLENT COLD TOUGHNESS IN PART INFLUENCED BY WELDING HEAT 失效
公开(公告)号：JPS6050150A
公开(公告)日：1985-03-19
申请号：JP15502883
申请日：1983-08-26
申请人： NIPPON KOKAN KK
发明人： TAIRA TADAAKI , UME KAZUYOSHI , AKAO KAZUTAKA , HIYOUDOU TOMOAKI , KITADA TOYOFUMI , NIIKURA MASAKAZU
IPC分类号： C22C38/00 , C22C38/14 , C22C38/54 , C22C38/58
摘要： PURPOSE:To prevent the deterioration of toughness especially in the part influenced by welding heat, and to provide the steel having excellent cold toughness by allowing the steel to contain C, Si, Mn, Al, and >=1 kind among Nb, Ti, and V in specified ratio, and regulating the amt. of residual carbon to a specific value or above. CONSTITUTION:The steel contains =0.005% residual carbon regulated by the formula, =1 kind among

5. 发明专利

JPS59107775A Four-electrode submerged arc welding method 失效
标题翻译：四电极电弧焊接方法
公开(公告)号：JPS59107775A
公开(公告)日：1984-06-22
申请号：JP21539382
申请日：1982-12-10
申请人： Nippon Kokan Kk
发明人： HIRABAYASHI KIYOTERU , AKAO KAZUTAKA , TAIRA TADAAKI
IPC分类号： B23K9/00 , B23K9/18
CPC分类号： B23K9/188
摘要： PURPOSE:To obtain a bead having a smooth surface in the stage of high speed welding as well in a four-electrode submerged arc welding method by performing welding while oscillating the 4th electrode on the uppermot steam side in the welding advance direction in the direction intersecting orthogonally the welding advance direction at respectively regulated frequency and amplitude. CONSTITUTION:Arcs are generated between the 1st-4th electrodes 1a-1d and base materials 2 and four-electrode submerged arc welding is performed. The 4th electrode 1d on the uppermost stream side in the welding advance direction is oscillated at 10-60Hz frequency and 0.1-3.0mm. amplitude in the direction intersecting orthogonally the welding advance direction. The electrodes are so connected as to have the preferred phases wherein the phase of the electrode 1b is advanced by 90 deg. from the phase of the electrode 1a, the phase of the electrode 1c is advanced by 90 deg. from the phase of the electrode 1b and the phase of the electrode 1d is advanced by 90 deg. from the phase of the electrode 1c. The beam having much smoother surface than the case in which the electrode 1d is oscillated is thus obtd.
摘要翻译：目的：为了在四电极埋弧焊接方法中获得具有平滑表面的珠粒，通过在沿着焊接前进方向的上蒸汽侧的第四电极在相交方向上振荡的同时进行焊接正交焊接前进方向分别调节频率和幅度。构成：在第1〜4电极1a-1d和基材2之间产生电弧，进行4电极埋弧焊。焊接前进方向最上游侧的第4电极1d以10〜60Hz频率振荡，0.1〜3.0mm。在垂直于焊接前进方向的方向上振幅。电极被连接成具有优选的相，其中电极1b的相位提前90度。从电极1a的相位，电极1c的相位提前90度。从电极1b的相位和电极1d的相位提前90度。从电极1c的相位。因此，具有比电极1d振荡的情况更光滑的光束。

6. 发明专利

JPS595079B2 JPS595079B2 - 失效
公开(公告)号：JPS595079B2
公开(公告)日：1984-02-02
申请号：JP16328978
申请日：1978-12-27
申请人： Nippon Kokan Kk
发明人： TAIRA TADAAKI , AKAO KAZUTAKA , ICHINOSE HIROYUKI
IPC分类号： B23K35/362 , B23K35/36 , B23K35/40

7. 发明专利

JPH0579595A VALVE INSTALLED BY USING FITTING FOR HOT TAP 失效
公开(公告)号：JPH0579595A
公开(公告)日：1993-03-30
申请号：JP20964391
申请日：1991-08-21
申请人： JAPAN STEEL & TUBE CONSTR , NIPPON KOKAN KK
发明人： NEMOTO MINORU , KAWAI TOSHIAKI , UNEMOTO YASUO , KITO TOMIYUKI , TAKANASHI YOJI , AKAO KAZUTAKA
IPC分类号： F16L55/00
摘要： PURPOSE:To install a valve by using a fitting for hot tap which can be inserted into a conduit without being restricted by the execution time, in a short construction period. CONSTITUTION:An expandle joint pipe 64 is connected with a valve 59, and a jack 66 and a supporting shaft 70 for suspending the valve are installed on the expandable joint pipe 64, and an operating shaft 67 extending upward is installed on the jack 66, and a receiving cylinder 74 which is fitted at the edge part of the pipe is installed at the edge parts of the valve 59 and the expandable joint pipe 64.

8. 发明专利

JPH0571685A VALVE USING FITTING FOR HOT TAP 失效
公开(公告)号：JPH0571685A
公开(公告)日：1993-03-23
申请号：JP23637591
申请日：1991-09-17
申请人： TOKYO GAS CO LTD , NIPPON KOKAN KK , JAPAN STEEL & TUBE CONSTR
发明人： YOSHIDA KENTARO , FUJIMAKI TERUAKI , AKAO KAZUTAKA , TSURUMAKI TOMIO , KITO TOMIYUKI , NEMOTO MINORU , KAWAI TOSHIAKI , UNEMOTO YASUO
IPC分类号： F16K27/00 , F16L55/00
摘要： PURPOSE:To provide a valve which can be installed in a main pipe at an optional time with neither stopping a flow in the main pipe nor reducing pressure therein, and can block a sectional area of the main pipe and make fluid flow only to the branched pipe. CONSTITUTION:A seal flange 59 is rotatably provided on a neck part fitting 55 of an upper fitting 53 with a sealing structure. A shaft 60, penetrating the seal flange 59 with a sealing structure, has a lower end jounalled by a reception port 69 formed on a lower fitting 54. A pair of stoppers 64, 64 are arranged on both sides of the shaft 60 so as to interrupt a cut end of a pipeline 5.

9. 发明专利

JPH0138597B2 失效
公开(公告)号：JPH0138597B2
公开(公告)日：1989-08-15
申请号：JP1056483
申请日：1983-01-27
申请人： NIPPON KOKAN KK
发明人： HIRABAYASHI KYOTERU , AKAO KAZUTAKA , TAIRA TADAAKI , NISHINO YUKIO , TOMA HIDEO
IPC分类号： B23K9/23 , B23K33/00

10. 发明专利

JPS6324800B2 失效
公开(公告)号：JPS6324800B2
公开(公告)日：1988-05-23
申请号：JP15161579
申请日：1979-11-22
申请人： NIPPON KOKAN KK
发明人： TAIRA TADAAKI , HIRABAYASHI KYOTERU , AKAO KAZUTAKA , ICHINOSE HIROYUKI , TERUNUMA TOSHIKATSU , KAZAMA SHINICHI
IPC分类号： B23K9/00 , B23K9/032

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式