简介：在高速板材连续退火生产线中的飞剪传动控制系统,通过采用高性能闭环控制模块FM458的设定值发生器、传动控制环和传动变动器等控制环节实现了对曲柄飞剪速度、角度以及转矩的精准控制.在实际的应用中因FM458的快速响应和高精度控制不仅增加了生产系统稳定性,而且也提高了生产线效率和板材成材率.

简介：Ａｐｐｌｉｃａｔｉｏｎｏｆ２４１ＡｍＥＤＸＲＦｔｏＤｅｔｅｒｍｉｎｅＨｅａｖｙＲａｒｅＥａｒｔｈｓｉｎＲＥＳｅｐａｒａｔｉｏｎＰｒｏｃｅｓｅｓｂｙＳｏｌｖｅｎｔＥｘｔｒａｃｔｉｏｎＪｉａＪｉａｎｇｔａｏ（贾江涛），ＭａＸｉａｏｔａｏ（马小桃），Ｙａ...

简介：InordertoimprovethecorrosionandmechanicalpropertiesofAM50magnesiumalloy,1wt.%GdwasusedtomodifytheAM50magnesiumalloy.Themicrostructure,corrosionandmechanicalpropertieswereevaluatedbyX-raydiffraction(XRD),scanningelectronmicroscopy(SEM),energydispersivespectroscopy(EDS),electrochemicalandmechanicalstretchmethods.Theresultsindicatedthatβ-Mg17Al12phasedecreasedandAl2Gd3andAl0.4GdMn1.6phaseexistedafterGdaddition.BecauseoftheGdaddition,thegrainofAM50magnesiumalloywasrefinedsignificantly,whichimprovedthetensilestrengthofAM50magnesiumalloy.Thedecreasingofβphaseimprovedthecorrosionresistanceofthemagnesiumalloy.ThefracturemechanismoftheGdmodifiedAM50magnesiumalloywasquasi-cleavagefracture.Thecorrosionresidualstrength(CRS)ofAM50magnesiumalloywasimprovedafter1wt.%Gdaddition.