高强度铝合金线杆的冶金质量控制

20136No．62013ElectricWire＆Cable201312Dec．2013庆毅1，张伟民21．5180522．214251铝合金的冶金质量通常是指铝合金铸坯的内在质量，主要包括内在合金元素的含量控制和分布均匀性、晶粒结构，以及熔体内部杂质控制，包括气体杂质和非金属夹杂，铝合金铸坯的冶金质量将直接影响后续加工产品的质量。针对铝镁硅系高强度铝合金线杆的铸轧特点，重点介绍铝镁硅系高强度铝合金线杆制造过程中的冶金质量缺陷原因分析及控制方法。冶金质量;铝镁硅系高强度铝合金;线杆;合金化;晶粒细化;熔体净化;质量控制TM244．1A1672-6901201306-0019-06MetallurgicalQualityControlofHigh-StrengthAluminumAlloyＲodQINGYi1ZHANGWei-ming21．ShenzhenALTECHManufactureCo．Ltd．Shenzhen518052China2．JiangsuShanghongrunCompo-metallicAlloyMaterialCo．Ltd．Yixing214251ChinaAbstractThemetallurgicalqualityofaluminiumalloysusuallyreferstotheinternalqualityofcontinuouscastingrodofaluminumalloyincludinginternalcontrolanddistributionuniformityofcontentofalloyingelementsgrainstruc-turecontroloftheimpurityofthemeltincludinghydrogencontentandnon-metallicinclusionsAluminumalloycastingmetallurgicalqualitydirectlyaffectsthequalityofsubsequentprocessingproduct．ThispaperisaimedatthecastingcharacteristicsofAl-Mg-SiserieshighstrengthaluminumalloyrodfocusingonthecausesformetallurgicaldefectsinthemanufacturingprocessandcontrolmethodsofAl-Mg-Siseriesalloyrod．KeywordsmetallurgicalqualityAl-Mg-Sialloywirerodalloyinggrainrefinementmeltpurificationqualitycontrol2013-08-151968－．1518052．0、、。。、、、、。11.1。、Mg2SiMg2Si。Mg2Si1.73∶1。Mg2SiMg2SiαAl3Fe3SiβAl9Fe2Si2。0.03%0.1%。Mg2SiAl-Zr。1.2。。。Al-Mg、Al-Cu。Al-Si、Al-B。Al-Ti、Al-Zr。。22.1。1。760℃。2。。3。AlTi、AlTiB、AlTiC。、。2.2AlTiBAlTiBTiAl3TiB2TiAl3TiB230min。AlTiAlTiC。12。1。。。3·02·20136No．62013ElectricWire＆Cable201312Dec．201323。。3a。3b。33.1。、。。1。250℃。400℃。。1。。。。2。。3。、、。、、、。。4。290%。、、。1。3.2。、、。、、、。。Al2O3。1。。4。·12·20136No．62013ElectricWire＆Cable201312Dec．20131/μmAl2O3t=0.1～5d=10～1000、、d=1～300MgOd=0.2～1t=1～8d=10～1000Al2MgO4d=0.1～5t=1～6d=10～1000、SiO2、d=10～1000、、d=50～1000CaKAl-Si-O、d=10～1000、FeOFe2O3t=0.1～1d=50～1000t=10d=20～1000、Al4C3、Al4O4C、t＜1d=0.5～25Cd=1～50AlB2AlB12、t＜1d=20～50TiB2、d=1～50VB2、d=1～20Al3Tid=1～30Al3Zr、d=1～150CaSO4l=1～5AlNt=0.1～3d=10～50d=1～50、dtl。4。。AlCl3AlCl3。。1%。、、。。。2、。。。。。。0.22～0.26ml100g。0.1%1.5kg0.083mol0.187ml100g。、、·22·20136No．62013ElectricWire＆Cable201312Dec．2013。0.14ml100g。0.12ml100g。。3。1974。。5。50.12ml100g。、、。6。、、。7。672in1in=0.0254m17.5°。PPI。PPI。、2。2in/PPI/t/h2.53510121520209991212152030999121515204099121515172330912151217172040912151517202350912151517202360912151720202370912151720232315in40～50PPI。15μm90%。35·32·20136No．62013ElectricWire＆Cable201312Dec．201381cm。。85。。、、。、、。。1．J．200224269-73．2．J．2000211217-22．3ＲamaＲaoT．Nearground/floorＲFpathgainmeasurementsinindoorcorridorsat2400MHzforwirelesssensorcommunicationsJ．ProcediaEngineering201230836-843．4．J．2012291176-179．5．HermiteJ．20104622221-224．6GeorgeP．Moustris．SwitchingfuzzytrackingcontrolformobilerobotsundercurvatureconstraintsJ．ControlEngineeringPrac-tice20111945-53．7ＲeinhardtKotzé．OptimisationofpulsedultrasonicvelocimetrysystemandtransducertechnologyforindustrialapplicationsJ．Ultrasonics201353459-469．8ConcariC．Vibrationlessalignmentalgorithmforincrementalen-coderbasedBLDCdrivesJ．ElectricPowerSystemsＲesearch201395225-231．9．J．2012329161-165．10ElHajjajiA．FuzzypathtrackingcontrolforautomaticsteeringofvehiclesJ．ＲoboticsandAutonomousSystems200343203-檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿213．23。41、、、。2。。3。1．J．200243-10．2．J．2012410-15．3．J．19962485-8．4．M．1989．5ＲayS．FKeeganN．j．EfficiencyandpreformanceofindustrialfiltrationsystemsC//LIGHTMETALS．EditedbyBarryWelch1998885-891．·53·20136No．62013ElectricWire＆Cable201312Dec．2013