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71. 发明专利

JPS57146494A COVERED ARC WELDING ROD 失效
公开(公告)号：JPS57146494A
公开(公告)日：1982-09-09
申请号：JP3173481
申请日：1981-03-04
申请人： KOBE STEEL LTD
发明人： TANAKA OSAMU , MIURA SEIJIROU
IPC分类号： B23K35/365
摘要： PURPOSE:To obtain a covered arc welding rod that can obtain a deposited metal excellent in blowhole resistance by using a coating material for which content of iron oxide, Mn and organic substance and ratio of CaCO3+MgCO3 to SiO2+ TiO2 and water of crystallization are specified. CONSTITUTION:A coating material of the following composition is prepared: 12-28wt% SiO2, 12-28wt% TiO2, 14-26% one or more of FeO, Fe2O3, Fe3O4, 10-16% Mn, 2.5-5.5% organic substance, 18-22% CaCO3, or >=5% CaCO3 and 8-20% CaCO3+MgCO3, 0.2-0.5 (CaCO3+MgCO3)/(SiO2+TiO2), 35% iron powder, 0.4-1.8% water of crystallization liberated at >=400 deg.C. This coating material is coated on the outer circumference of a steel core wire. This covered arc welding rod has excellent operative weldability and gives deposited metal excellent in essential required mechanical characteristics such as X-ray characteristics etc.

72. 发明专利

JPS56126096A COVERED ELECTRODE 失效
公开(公告)号：JPS56126096A
公开(公告)日：1981-10-02
申请号：JP2843580
申请日：1980-03-05
申请人： KOBE STEEL LTD
发明人： SAKAI YOSHIYA , NAGAOKA SHIGEO , NAKAI YOUJI , TOMOYASU TAKATOSHI , TANAKA OSAMU
IPC分类号： B23K35/365
摘要： PURPOSE:To obtain the covered electrode where slug is exfoliated naturally even under severe conditions, by applying the material, where the sticking agent is mixed with the flux containing TiO2, MgO, SiO2, Mn, Al2O3, iron powder, iron oxide, and the organic material in prescribed proportions, onto the steel core. CONSTITUTION:Under the condition of MgO/(TiO2+Al2O3)(weight ratio) 0.15- 0.7, the flux containing 6-24% TiO2, 2-15% MgO, 10-30% SiO2, 5-15% Mn, 1-6% Al2O3, 20-60% iron powder, 2.5% or less iron oxide, and 0.5-2.5% organic material is prepared. Next, the sticking agent is mixed with the flux, and the mixed material is applied onto the steel core to obtain the objective covered electrode. As this sticking agent, water glass where the mole ratio of Na2O/K2O is 0.5-5.

73. 发明专利

JPS5460248A FUME REMOVER 失效
公开(公告)号：JPS5460248A
公开(公告)日：1979-05-15
申请号：JP12716977
申请日：1977-10-21
申请人： MITSUI SHIPBUILDING ENG , KOBE STEEL LTD
发明人： KOZAI TAKASHI , KAGAWA NORIAKI , TANAKA OSAMU
IPC分类号： F16P1/06
摘要： PURPOSE:A fume remover capable of creating a comfortable working environment, having a structure in which a permeable resisting part beneath a ceiling of uneven shape and a fume cxhaust port is opened between the ceiling and the permeable resisting part. CONSTITUTION:The ceiling 3 provided on the duct and guarder 2 placed between the struts I is formed into an uneven shape by means of the spoke 4. The flexble material 5 is placed along the spoke 4, and the netting 6 as a permeable resisting part is laid beneath the ceiling to form a triangled columnar continuous space. The fume exhaust port 7 is each provided in the space, and the periphery of the ceiling 3 is provided with the air jetting hole II to form an sir curtain which separates the working place from the outside. The fume generated in the compartment goes up and reaches the ceiling 3 through the netting 6. Then, the fume is trapped in the uneven portions of the ceiling 3 without convection. The fume is sucked into the duct and guarder 2 through the exhaust port 7 by means of a fan and then exhausted to the outside.

74. 发明专利

JPS5394238A METHOD AND APPARATUS FOR COLLECTION AND REMOVAL OF WELDING DUST 失效
公开(公告)号：JPS5394238A
公开(公告)日：1978-08-18
申请号：JP908177
申请日：1977-01-29
申请人： KOBE STEEL LTD
发明人： KAGAWA NORIAKI , TANAKA OSAMU
IPC分类号： B23K9/32 , F16P1/06
摘要： PURPOSE:To collect and remove welding dust at high concn. from an upper part and to lower a dust removing cost distinctly, by arranging a buffle member for pressure decreasing in an area where an ascending current of welding dust can be observed, wherein said member may allow the rising of the welding dust but influence the ascending current of it.

75. 发明专利

JPS5286945A BANDDLIKE ELECTRODE ARC WELDING EQUIPMENT 失效
公开(公告)号：JPS5286945A
公开(公告)日：1977-07-20
申请号：JP5872776
申请日：1976-05-20
申请人： KOBE STEEL LTD
发明人： ITSUSHIRO TOMOKAZU , YAMAKA MAKOTO , TANAKA OSAMU , MATSUSHITA YUKINOBU
IPC分类号： B23K9/26 , B23K9/04 , B23K9/08

76. 发明专利

JPH0364444A WIRE FOR FORMING SURFACE FILM 失效
公开(公告)号：JPH0364444A
公开(公告)日：1991-03-19
申请号：JP19962689
申请日：1989-08-01
申请人： KOBE STEEL LTD
发明人： TANAKA OSAMU , YOSHINO FUMITO
IPC分类号： C23C4/06 , C23C4/10
摘要： PURPOSE:To obtain the wire forming a film having excellent characteristics of tight adhesion with a base metal, wear resistance, heat resistance, corrosion resistance, etc., by incorporating an aluminum base metal as a matrix with hard grains. CONSTITUTION:The wire is formed by incorporating an Al or Al alloy matrix with >=50vol% hard grains constituted of ceramics, intermetallic compounds, cermet, metals or the like and having >=500Hv hardness of themselves. The wire is stuck onto the surface of a base metal by adopting thermal-spraying and cladding by welding, by which a film having excellent characteristics of wear resistance, heat resistance, corrosion resistance, etc., can efficiently be formed. As for the above hard grains, in the case of 50vol% incorporation, the homogeneous dispersion of the hard grains into the matrix of the film is made difficult and the matrix is reduced, so that the conformability of the film with the base metal is deteriorated.

77. 发明专利

JPH0246314B2 失效
公开(公告)号：JPH0246314B2
公开(公告)日：1990-10-15
申请号：JP13412387
申请日：1987-05-29
申请人： KOBE STEEL LTD
发明人： SEIKE NORIO , TANAKA OSAMU , IKEMOTO KAZUO
IPC分类号： B23K35/368

78. 发明专利

JPH0240432B2 失效
公开(公告)号：JPH0240432B2
公开(公告)日：1990-09-11
申请号：JP29543686
申请日：1986-12-10
申请人： KOBE STEEL LTD
发明人： SEIKE NORIO , TANAKA OSAMU
IPC分类号： B23K35/30 , B23K35/02 , B23K35/362 , B23K35/40

79. 发明专利

JPH0234712B2 失效
公开(公告)号：JPH0234712B2
公开(公告)日：1990-08-06
申请号：JP12364281
申请日：1981-08-06
申请人： KOBE STEEL LTD
发明人： SAKAI TADAMICHI , ASAMI KYOSHI , TANAKA OSAMU , SAIDA HIROSHI , MATSUSHITA YUKINOBU
IPC分类号： B23K25/00 , B23K9/04 , B23K35/362

80. 发明专利

JPH02179393A FLUX FOR BUILD-UP WELDING OF FERRITIC STAINLESS STEEL 失效
公开(公告)号：JPH02179393A
公开(公告)日：1990-07-12
申请号：JP33548888
申请日：1988-12-29
申请人： KOBE STEEL LTD
发明人： TANAKA OSAMU , NATSUME SHOGO , MURAI YASUO
IPC分类号： B23K35/362
摘要： PURPOSE:To obviate the generation of slag seizure and undercut and to improve slag removability by specifying the compsn. of the flux for build-up welding of ferritic stainless steels. CONSTITUTION:The flux for build-up welding of the ferritic stainless steels is composed, by weight, of 4 to 13% CO2, 5 to 14% CaO, 4 to 12% SiO2, 30 to 50% Al2O3, 1 to 10% MgO, 2 to 9% metal fluoride (where, 0.5 to 5% BaF2 among metal fluorides), 0.5 to 5% metal Al, 1 to 7% metal Ti, and 1 to 7% metal Nb. Particularly, the CO2 and CaO component are regulated and BaO is added to the flux. The content of the metal fluoride is lowered to 2 to 9% and the BaF2 is essentially used as the metal fluoride, by which the workability is improved and the production of the built-up product having the excellent performance is possible.

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