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¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ ì軓S‹Z•ñ KAWASAKI STEEL GIHO Vol.20 (1988) No.1 ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ |
| Ž©“®ŽÔ”r‹C•”•i—pƒXƒeƒ“ƒŒƒX|‚Ì“Á«‚ƃ^ƒ“ƒfƒ€ˆ³‰„‚É‚æ‚黑¢ Characteristics of Stainless Steel for Automotive Exhaust System and Its Production by Tandem Cold Rolling Mill ¬—Ñ@áÁ(Makoto Kobayashi)@ìè@—´•v(Tatsuo Kawasaki)@ŽOŒ´@N—Y(Yasuo Mihara)@²“¡@L•(Hirotake Sato)@‚“c@³˜a(Masakazu Takada)@ú哇@Í–ç(Fumiya Yanagishima) |
| —vŽ| : Ž©“®ŽÔ”r‹CŒn•”•i—pƒXƒeƒ“ƒŒƒX|‚ɂ‚¢‚ÄCÅ“K|Ží‚ð‘ÏH«‚¨‚æ‚Ñ‚‰·“Á«‚Ì“_‚©‚猟“¢‚µ‚½B‚Ü‚½C•’Ê|—≄ݔõ‚ð—p‚¢‚½»‘¢‚ÉŠÖ‚í‚é–â‘è“_‚ɂ‚¢‚ÄŒŸ“¢‚µ‚½BR410L‚¨‚æ‚ÑR409LƒXƒeƒ“ƒŒƒX|‚Í“à–Ê‘¤‚Ì”r‹C‹Ãk…CŠO–Ê‘¤‚̉–…‚Ì—¼•û‚ɑ΂µ‚Ä—D‚ꂽ‘ÏH«‚ðŽ¦‚µ‚½B—¼ŽÒ‚Å”äŠr‚·‚é‚ÆCTi‚ð“Y‰Á‚µ‚½R409L‚ª–³“Y‰Á‚ÌR410L‚æ‚è‚à—D‚ꂽ¬Ñ‚ðŽ¦‚µ‚½B‚Ü‚½CR409L‚Í‚‰·“Á«‚¨‚æ‚ѬŒ`«‚É‚à—D‚êC‚±‚ÌŽí‚Ì—p“r‚ÉÅ‚à“K‚µ‚½Þ—¿‚Å‚ ‚éB‚‚¢¶ŽY«‚ð—L‚·‚éƒ^ƒ“ƒfƒ€ƒ~ƒ‹‚É‚æ‚鈳‰„‚ÆCÄ“ÝH’ö‚ÉŠÖ‚µ‚ÄŒŸ“¢‚ðs‚¢•’Ê|—≄ݔõ‚ð—p‚¢‚Ä‚àC”ÂŒú¸“xC•\–Êár‚¨‚æ‚ÑÞŽ¿‚Ì“_‚Å\•ª‚È•iŽ¿‚Ì‚à‚Ì‚ª»‘¢‚Å‚«‚邱‚Æ‚ðŽ¦‚µ‚½B |
| Synopsis : Ferritic stainless steels for automotive exhaunt systems are reexamined for corrosion resistance and properties at elevated temperatures. Production process of the steels using conventional facilities for plain carbon steels is also studied. Stainless steels have good resistance against corrosion by inner condensate and outer road salt. Ti-stabilized type 409L is better than nonstabilized type 410L in both corrosive environments. Type 409L also has better properties at elevated temperature and better press formability, and is considered to be the optimum material for these automotive applications. It is shown that rolling by the high-productive tandem mill and optimizing the condition of the annealing process can provide stainless steel strips with sufficient quality of dimensionsCsurfaces and properties. |
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