©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(,215151):,,,:;;;:TG316.1+92,,,,,,,1,,,,,,;,,50Hz,,,,,,,,,,,,,,,11212,6,,,221121111(1),51400mm,5350mm,400mm,20CrNi2MoACTS22200,215P20Z,52mm,B1+44db,1101(:mm)38220104ModernMetallurgyVol.38No.2Apr.2010X:2009202218:(1967),,:13952599808©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2),300mm,,5115mm,,,3(1),1B,a,1,1,2,a,,a2A3A(2),,,a,3(a),a(3),,Ta,3(b),a,21221111(4),5300mm4000mm,42CrMoCTS23000,215P20Z,52mm,B1+38db4212.2,4A,240mmb,,,4(1)215P20Z,4B,C,,(2),b,b(3)215P99K1,4DE,b,b,,,b,(4),b240mm260mm,,,,b3,,,162: