JOURNAL OF THE JAPAN WELDING SOCIETY
Online ISSN : 1883-7204
Print ISSN : 0021-4787
ISSN-L : 0021-4787
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Volume 21, Issue 10
Displaying 1-4 of 4 articles from this issue
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  • Researches on Flux for Submerged Arc Welding (Report I)
    T. Kubota, Y. Okada
    1952 Volume 21 Issue 10 Pages 270-275
    Published: 1952
    Released on J-STAGE: June 12, 2009
    DOIhttps://doi.org/10.2207/qjjws1943.21.270
    JOURNAL FREE ACCESS
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    In order to find a good flux for submerged arc welding on the rod which contains max. 0.15% C, max. 0.10% Si and 1.2-1.4% Mn, various experiments were made with the following results:
    1) For the two types of flux compositions, i. e. SiO2-CaO-MgO-MnO and SiO2-CaO-MgO system, proper range of each oxide component was decided and given in a table. The mechanical property and weldability of weld steel were very effective within this range of flux composition.
    2) Increase of alumina content is likely to give bad effect on weldability and to extend depth of weld in both types of flux composition.
    3) Ability of desulphurizing weld steel depends upon the basicity of SiO2-CaO-MgO-MnO type of composition.
    4) Mechanical properties of weld steel were good but the shock value was poor.
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  • A Study on the Buckling of Welded Built-up Structure (Report I)
    The lateral (torsional) buckling of welded plate girder
    T. Okumura
    1952 Volume 21 Issue 10 Pages 276-283
    Published: 1952
    Released on J-STAGE: June 12, 2009
    DOIhttps://doi.org/10.2207/qjjws1943.21.276
    JOURNAL FREE ACCESS
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    In the present report, the author attempted to give a practically applicable method for the most economical design of the welded built up I-girder which is subjected to a bending moment. In the first place, he developed a theory on the lateral buckling, in which the deformation of web plate was considered, and the local buckling of flange plate.
    The results of his study were as follows:
    1) The formula which gives the critical value of the lateral buckling of I-girder had two more terms added to the already known one. These important corrected terms set a certain limit especially to the depth and width of flange plate. This formula was shown as (24) in this paper.
    2) The local buckling strength of flange plate, in which the elastic supported condition by web plate was considered, decreased with the increase of h/b and d/t where
    h: height of web plate, t: depth of web plate
    b: width of flange plate and d: depth of flange plate.
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  • [title in Japanese]
    [in Japanese]
    1952 Volume 21 Issue 10 Pages 283-289
    Published: 1952
    Released on J-STAGE: June 12, 2009
    DOIhttps://doi.org/10.2207/qjjws1943.21.283
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Elmer C. Thylin
    1952 Volume 21 Issue 10 Pages 289-292
    Published: 1952
    Released on J-STAGE: June 12, 2009
    DOIhttps://doi.org/10.2207/qjjws1943.21.289
    JOURNAL FREE ACCESS
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