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(),,RollingandFormingProcessesoftheMinorRingforOilDrillingEquipmentHuangSonglin(MaanshanIron&SteelCo.Ltd.)AbstractTheresearchandtestoftherollingandformingprocessesforaspecialringusedinoildrillingequip2mentareintroducedinlightofringrollingprocessandprinciple.Theprocesscharacteristicsandeconomicbenefitsbroughtaboutareanalyzed.Keywordsminorringforoildrillingequipmentblankrolling0,,:566mm453mm218mm;546mm453mm187mm20Mn2,11.1,,,,40%,,1.2,,,,,,,,,,1,,,35%1-;2-;3-11.3(1),,,,,:,,(243000)63ANHUIMETALLURGY20072(2),,,,,187mm,,546mm,453mm,46.5mm,,4.02,2,2,,23,,600mm,2.5,,,,,,,:(1),(2)2040mm,(3),,33,(50mm);(:ª110mm2040mm),;,(110mm)205mm,,44()4,,1000t,5(),8mm,,,,,10mm732007256D53K2800(180mm800mm)40mm,46.5mm,100mm,,,ª880mm,7,,HRC4050,HRC426755.1,,:-1000t-D53K28005.2,,,,(3),190mm,,,;,,ª110mm,80mm,,8%,205mm1.5%,554mm460mm190mm12201240,2.5h15,127kg15,3(),,,(),4,34mm66.1,162kg107kg,42%60%6.2,,,,,,83ANHUIMETALLURGY20072,,1821J6.3,,;,,150200,,,,10002000,300,307,,,,,,(2007-04-10)(18)14,26(b),,(c)(FF),(d)(e),(2)UOE,,UOETMCP,UOE,X80X100X120,,55.1,10:(a),(b)(c)(d)5.2,,:(a),,(b)(c)5.3,,6,,10,,(2007-03-09)9320072