鉛含有はだ焼鋼鋳片の表面疵改善

• 大場 康英

  山陽特殊製鋼(株)研究・開発センタープロセス開発グループ

• 高須 一郎

  山陽特殊製鋼(株)研究・開発センタープロセス開発グループ

• 北出 真一

  山陽特殊製鋼(株)製鋼部鋳造課

• 下口 晴之

  山陽特殊製鋼(株)技術管理部品質保証室品質保証グループ

書誌事項

タイトル別名

• The Improvement of Surface Cracks on Leaded Free-cutting Steel Bloom
• ナマリ ガンユウ ハダヤキ コウチュウヘン ノ ヒョウメンキズカイゼン

抄録

This study was carried out in order to prevent surface cracks on continuous cast of leaded free-cutting steel. As the leaded steel is likely to suffer from surface cracks, prevention of the cracks is necessary for higher reliability of products. The majority of surface cracks of billets of this steel were found out to be bloom cracks originated due to not uniform cooling at the initial solidification of bloom. Consequently, this improvement of bloom surface cracks is important for the decrease of surface cracks of billets of this steel.<BR>From the view point of the uniform initial solidification near meniscus, mold powder was optimized. Three types of mold powder with different viscosity and different carbon content were evaluated through commercial production processes. Uniform initial solidification was realized by use of the mold powder with higher viscosity and higher carbon content. Consequently, surface cracks of the blooms cast continuously and the rolled billets were decreased.

収録刊行物

• 鉄と鋼

  鉄と鋼 92 (7), 439-447, 2006

  一般社団法人 日本鉄鋼協会

キーワード

• mold powder
• surface crack
• leaded free-cutting steel
• continuous casting
• meniscus
• heat flux
• viscosity
• carbon
• heat insulation
• oscillation mark
• slip phenomenon

詳細情報

• CRID: 1390001205183475712
• NII論文ID: 110004731565
• NII書誌ID: AN00151251
• DOI: 10.2355/tetsutohagane1955.92.7_439
• ISSN: 18832954
• ISSN: 00211575
• ISSN: http://id.crossref.org/issn/00211575
• NDL書誌ID: 8009786
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8009786
• Web Site: https://www.jstage.jst.go.jp/article/tetsutohagane1955/92/7/92_7_439/_pdf
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可