冷镦钢SWRCH35K的控轧控冷工艺

SWRCH35K①SWRCH35KTHECONTROLROLLINGANDCOOLINGPROCESSOFCOLDHEADINGSTEELSWRCH35KYuanRenpingXiangtanIron&SteelCroupCo.LtdABSTRACTThispaperintroducedthecontrolledrollingandcoolingparametersaretheimportantfacttoeffectthemetallurgicalstructureandmechanicalprosperityofcoldheadingsteel.Putforwardthecontrolledrollingandcoolingparametersofcoldheadingsteelindetail.KEYWORDScoldheadingsteelcontrolledrollingandcoolingprocessparameters1SWRCH35K1.1750.2%～0.5%0.3%～0.6%0.6%～0.9%0.7%～1.0%SWRCH35K11SWRCH35K%CMnSiPSSWRCH35K0.32～0.380.60～0.900.10～0.35≤0.030≤0.0351.2SWRCH35K→80t→→LF→150mm→→→→→→→2SWRCH35K2.1SWRCH35K3MPa～10MPa950℃2.21SWRCH35KSWRCH35K780℃680℃75s840℃1SWRCH35K3520052Feb.2005131HENANMETALLURGYVol.13No.1①.4111012004121515101tA137.6139.1139.5136.3B135.1136.8137.4138.5C139.9136.3139.2138.6D137.4139.2136.7137.4E135.7138.3136.3137.11101.76t3.6t1.3%2.64%5%2.3.2312PID341..199214108～10.2HehnA.HFluidPowerTroubleshootingMarceDekkerLnc1995～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～126～135.16STMΦ8.0mmSWRCH35K1820℃950℃840℃2STM21#2#2STMSTMSTM1STM2STM3STM4STM5STM6STM7STM8STM9STM10/m/s0.180.180.180.180.180.200.220.240.300.353200310SWRCH35K821/31186.6%64182874SWRCH35K51..1990.82～84.2..200225～7.3.M.～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～1984.255～263.32M402%～3%M100.6%51..19945133～137.2..200211～3.3..20025117～121.5320051