| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.11 ( March 1985 ) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Recent Manufacturing Techniques of Tube for Boiler - Cr-Mo Electric-Resistance-Welded
Tube & Rifled Seamless Tube Toshihisa Tamura, Masanobu Minami, Kazuhiro Uozumi, Yutaka Hirano, Shuzo Watanabe, Yasuyuki Hayashi |
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Synopsis : Recent development in our technology of manufacturing boiler tubes is describved. Electric resistance welded tubes of 1Cr-1/2Mo steel(STB A22 in the Japanese Industrial Standard) are produced with stability. The production of the Cr-Mo ERW tube of high quality is based on inert gas shielded welding, an automatic heat controlling system and medium-frequency welding. Another technique developed is rifling seamless tubes. Establishment of a cold drawing technique and product-quality controlling system permits production of high quality tubes with excellent rib configuration. Such Cr-Mo ERW and rifled seamless tubes were employed to construct No.3 West Power Station at Chiba Works of Kawasaki Steel Corporation, which has stationarily supplied electricity since April 1984. |
| TextiPDF: 11p./500kbj |