球状黒鉛鋳鉄溶接棒によるTIG溶接 TIG Welding Using Spheroidal Graphite Cast Iron Electrode

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  A experimental welding rod was made and welding tests were performed for the purpose of welding the spheroidal graphite cast iron at low preheat condition. AI, Bi, Ca, REM were added to the 3.9%C, 3.8%Si iron, and poured into the Cu mould to measure degree of chill by hardness, and determined the amount of each elements to be add avoiding serious chill for the experimental welding rod. It was performed a bead test on plate, repair welding test and a V groove welding for mechanical test by TIG welding using experimental welding rod. No crack was detected in the bead test on plate specimens even on the preheat condition of 369K. Hard chill was detected in the final layer under as weld condition for the repair welding test specimens, but as the distance from the final layer increased, fine graphits were found to increase considerably. Ferrite and fine graphite were detected at 10mm distance from the final layer in weld metal. The microstructure of heat treated specimen was ferrite and fine graphite in all deposited metal. A good tensile strength and fatigue limit was obtained in the mechanical tests of weld joint. The same welding rod and procedure were applied to spheroidal graphite iron casting with a thickness of 75mm, and the results were satisfactory.

収録刊行物

  • 鋳造工学 = Journal of Japan Foundry Engineering Society

    鋳造工学 = Journal of Japan Foundry Engineering Society 69(7), 599-606, 1997-07

    Japan Foundry Engineering Society

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被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10003800559
  • NII書誌ID(NCID)
    AN10514770
  • 本文言語コード
    JPN
  • 資料種別
    SHO
  • ISSN
    13420429
  • NDL 記事登録ID
    4258117
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-277
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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