JOURNAL OF THE JAPAN WELDING SOCIETY
Online ISSN : 1883-7204
Print ISSN : 0021-4787
ISSN-L : 0021-4787
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Volume 17, Issue 5
Displaying 1-9 of 9 articles from this issue
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  • Effects of Arsenic on the Weldabilities of Steels (2nd Report)
    Good Effects of Dcoxidizers in Coating on Shock Value of Weld Metal Deposited With Coated Electrodes Containing Arsenic in Low Carbon Steel Core
    Harujiro Sekiguchi, Seiichi Ando
    1948 Volume 17 Issue 5 Pages 168-176
    Published: 1948
    Released on J-STAGE: December 10, 2009
    DOIhttps://doi.org/10.2207/qjjws1943.17.168
    JOURNAL FREE ACCESS
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    At the 1st report, the authors described that shock values of the weld metal obtained with electrode core steels containing arsenic decrease with the increase of arsenic contents of core steels. Then it is important problem to adopt any device which is available for the prevention of such deterioration of properties. In this report, the authors investigated the relation between deoxidizing abilities of coatings and shock values of weld metals.
    And from the experimental results, following facts were concluded.
    (a) Low shock values and low elongations of weld metals obtained by welding of mild steel without arsenic with coated electrodes, which are made of low carbon core steels containing various quantities of arsenic, are remarkably improved if suitable deoxidizers are added in the coating.
    (b) When we are abliged to use core steels containing remarkably much amount of arsenic, Mn-Si alloy and metallic Chromium ought to be added rather than Fe-Mn alloy as deoxidizers in the coating. The improvement of the weld metal by such deoxidizers seems to be due to the following reasons.
    i) If the weld metal is well deoxidized, oxides of arsenie decrease and inclusions consisted of the oxide decrease and for this reason the solidified weld metal becomes tougher.
    ii) In consequence of the deoxidation of fused metal, arsenic vaporizes and after solidification the arsenic content of ferrite decreases. And the ferrite-matrix of weld metal becomes softer and the deformability of weld metal increases.
    That is to say, owing to these two tendencies, the shock value and elongation of the weld metal are improved, and the decrease of cracking tendency of weld metal are expected.
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  • The Flash Butt Welding of Rails
    M. Otani
    1948 Volume 17 Issue 5 Pages 176-182
    Published: 1948
    Released on J-STAGE: June 12, 2009
    DOIhttps://doi.org/10.2207/qjjws1943.17.176
    JOURNAL FREE ACCESS
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    The test results about mechanical properties of fash.butt welded rail joint are reported in this paper. The welding items as in Table 6 are concluded to be successful, and high temperature annealing necessary to secure good mechanical strengths.
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  • Study of the Gas Welding Rod of Cast Iron. (1st Rep.)
    Gen Tamura, Kenjiro Schiobara
    1948 Volume 17 Issue 5 Pages 182-188
    Published: 1948
    Released on J-STAGE: June 12, 2009
    DOIhttps://doi.org/10.2207/qjjws1943.17.182
    JOURNAL FREE ACCESS
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    The research on gas welding of cast iron has been Carried on aiming a rapid forming of a greater deal of graphite on the deposit metal increasing ferrite ón it.
    The following result were obtained using the welding rod containing (Si+Al)% of 3, 4, .5, 6, and 7%.
    (1) With (Al+Si)=3.0-4.3% welding rod is easily made.
    (2) If the amount of Al exceeds 2% the welding operation become difficult.
    (3) The greater the contain of (Al+Si)%. the welding results the greater deal of graphite and smoother snrface.
    (4) With addition of Al, the products are machined with ease.
    (5) Weldability is good.
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  • [title in Japanese]
    [in Japanese]
    1948 Volume 17 Issue 5 Pages 189-194
    Published: 1948
    Released on J-STAGE: June 12, 2009
    DOIhttps://doi.org/10.2207/qjjws1943.17.189
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1948 Volume 17 Issue 5 Pages 195-196
    Published: 1948
    Released on J-STAGE: June 12, 2009
    DOIhttps://doi.org/10.2207/qjjws1943.17.195
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1948 Volume 17 Issue 5 Pages 196-197
    Published: 1948
    Released on J-STAGE: June 12, 2009
    DOIhttps://doi.org/10.2207/qjjws1943.17.196
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1948 Volume 17 Issue 5 Pages 198-201
    Published: 1948
    Released on J-STAGE: June 12, 2009
    DOIhttps://doi.org/10.2207/qjjws1943.17.198
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1948 Volume 17 Issue 5 Pages 205-206
    Published: 1948
    Released on J-STAGE: June 12, 2009
    DOIhttps://doi.org/10.2207/qjjws1943.17.205
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1948 Volume 17 Issue 5 Pages 207-208
    Published: 1948
    Released on J-STAGE: June 12, 2009
    DOIhttps://doi.org/10.2207/qjjws1943.17.207
    JOURNAL FREE ACCESS
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