简介：AseriesofLa2O3/MCnylonnanocompositeswerepreparedviainsitupolymerization.Theeffectsofcontentofnano-La2O3onthemechanicalpropertiesofnanocompositeswerestudied.Dispersionofnano-La2O3inMCnylonmatrixwasobservedwithSEM.ThecrystalstructureofnanocompositeswascharacterizedbymeansofXRD.SEManalysisshowsthatLa2O3nanoparticlesareuniformlydispersedinMCnylonmatrixandlittleclusteringexistswhenthecontentofnano-La2O3islowerthan1%,however,whenthecontentofnano-La2O3ismorethan1%,itbeginstocluster.XRDanalysisindicatsthatnano-La2O3doesnotchangethecrystalstructureofMCnylon.Mechanicalpropertiestestsshowthatthetensilestrength,elongationatbreak,impactstrength,flexuralstrength,andflexuralmodulusofnanocompositesfirstincreasethendecreaseasthecontentofnano-La2O3isincreased.Whenthecontentofnano-La2O3is0.5%,thetensilestrengthandelongationatbreakofnanocompositesreachmaximum,whichare17.9%and52.1%higherrespectivelythanthoseofMCnylon.Whenthecontentofnano-La2O3is1.0%,theimpactstrength,flexuralstrengthandflexuralmodulusofnanocompositesreachmaximum,whichare36.6%,12.7%and16.3%higherrespectivelythanthoseofMCnylon.

简介：金川集团公司5K/Ta羰基铁项目是国内第一条规模化的羰基铁生产线。该生产线具有流程短、生产成本低、能耗小、无污染、产品性能优异及附加值高等优点。其生产中有一氧化碳和剧毒羰基化合物产生，且在较高的压力下进行合成反应，对设备及工艺要求极高，采用了HIMA公司的SIS系统进行监控。本文基于MODBUS协议实现了横河CENTUMCS3000系统与HIMASIS系统通讯。

简介：介绍了铜熔炼ＳＣＡＮ３０００ＮＴ／Ｓ９０００的系统构成以及为实现自然熔炼过程而作的画面、控制、报警等设计。

简介：通过介绍霍尼威尔TDC3000集散控制系统在金川二矿区充填生产中的应用实践,提出了该系统存在的问题以及一些改进措施。