アーク熔接法によるレール継目の接合に関する研究(第1報)

• 守田 貞義

  八幡製鉄技術研究所

• 伊藤 悌二

  八幡製鉄技術研究所

• 米井 滉

  八幡製鉄技術研究所

• 藤本 優

  八幡製鉄技術研究所

書誌事項

タイトル別名

• Welding of Rail Joints by Manual Arc Method (Report 1)

抄録

This paper reports the effect of post-heating on the bending test result in manual arc welding of the rail joint when the joint type, the electrode type, and prenehting conditions are properly determined.<BR>The results are summarized as follows:-<BR>1. A satisfactory joint can be obtained when low hydrogen electrodes (E 7016, E 8016) are applied to shovel shape joints, preheating bases and webs of rails at 400°C, and head at 200°C. And applying the post-heating at 600°C for 30min. directly after welding has an appreciable effect on improving joint ductility.<BR>2. Statistically no significant difference could be observed between the breaking load of as welded and of post-heated weld joints in head up bending test with 1 m. span length, but the bending deflection and the fracture energy obviously show the excellence of the post-heated weld joint. Therefore, it is proper to adopt the bending deflection or the fracture energy as a criterion of the bending test in addition to the breaking load.<BR>3. As a result of this experiment, the authors propose to adopt the fracture energy over 3000 kg-m or the deflection over 45mm in addition to the breaking load over 90 tons as the tentative standard of manual arc weld joint of 50 kg/m P. S. rail.<BR>4. C% and Ceq% of the rail materials seem to have a considerable effect on the bend ductility of the weld joints.

収録刊行物

• 溶接学会誌

  溶接学会誌 27 (2), 109-113, 1958

  一般社団法人 溶接学会

キーワード

• Metals and Alloys
• Surfaces, Coatings and Films
• Mechanical Engineering
• Mechanics of Materials

詳細情報

• CRID: 1390282681477767168
• NII論文ID: 130003762732
• DOI: 10.2207/qjjws1943.27.109
• ISSN: 18837204
• ISSN: 00214787
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可