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41. 发明专利

JPS63264299A PRODUCTION OF BAKING TYPE FLUX FOR SUBMERGED ARC WELDING 失效
公开(公告)号：JPS63264299A
公开(公告)日：1988-11-01
申请号：JP10057387
申请日：1987-04-22
申请人： KOBE STEEL LTD
发明人： OKUDA NAOKI , WADA TAKASHI , FUJIMOTO TOSHIAKI
IPC分类号： B23K35/40 , B23K35/362
摘要： PURPOSE:To improve yield of product flux by using the specific mol ratio of alkali salt silicate powder as caking agent in granulating and baking stages for the caking agent and the flux raw material powder and also adding water before granulation. CONSTITUTION:The caking agent is formed by mixing 5-15 parts of the alkali salt silicate powder to 100 parts of the flux raw material powder. Then, the alkali salt silicate powder is used at

42. 发明专利

JPS61169194A FUSED FLUX FOR SUBMERGED ARC WELDING 失效
公开(公告)号：JPS61169194A
公开(公告)日：1986-07-30
申请号：JP1064585
申请日：1985-01-22
申请人： KOBE STEEL LTD
发明人： HASE KAORU , WADA TAKASHI
IPC分类号： B23K35/362
摘要： PURPOSE:To obtain a weld metal having good moisture absorption resistance and welding workability and good low-temp. toughness by using a flux contg. a specific ratio each of SiO2, CaO, CaF2, Al2O3, MnO, MgO, Na2O, K2O and FeO. CONSTITUTION:The flux components are prepd. in the following manner: The flux contains, by weight %, 10-25 SiO2, 4-18 CaO, 25-55 CaF2, 10-25 Al2O3, 1-6 MnO, 1-8 MgO, 0.5-5 Na2O, 0.5-5 K2O and 0.1-1.5 FeO and the conditions of 5-21% CaO+MgO and 0.70-1.40 SiO2/Al2O3 are satisfied. The welding workability if good and the weld metal having low-temp. toughness of a high level is obtd. when submerged arc welding is executed by using such flux.

43. 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）。

44. 发明专利

JPS52133842A WELD JOINT STRUCTURE 失效
公开(公告)号：JPS52133842A
公开(公告)日：1977-11-09
申请号：JP5119676
申请日：1976-05-04
申请人： KOBE STEEL LTD
发明人： ITSUSHIRO TOMOKAZU , OKUDA NAOKI , WADA TAKASHI
IPC分类号： B23K33/00

45. 发明专利

JPS5164439A Yosetsuzairyo 失效
公开(公告)号：JPS5164439A
公开(公告)日：1976-06-03
申请号：JP13705574
申请日：1974-12-02
申请人： Kobe Steel Ltd
发明人： KIMURA YOSHIO , TANAKA SO , KAWASE TAKEKI , SHIMADA YUKINORI , WADA TAKASHI
IPC分类号： B23K35/365 , B23K35/36

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