1. Vim li cas 6061 aluminium alloy tshwj xeeb yog haum rau cov tub rog ib puag ncig?
Kev Lag Luam Kev Lag Luam Kev Lag Luam 6061 Al61 Rods vim lawv qhov tshwj xeeb corrosion tsis kam mechanism. Tsis zoo li cov qauv alloys, 6061 muaj cov magnesium thiab silicon ua cov txheej txheem alloy, uas tsim kho oxide kho oxide thaum raug rau cov dej qab ntsev. Qhov kev ua yeeb yaj kiab passive tiv thaiv tiv thaiv pitting corrosion-ib hom tsis ua hauj lwm nyob rau hauv cov ntawv thov tawm. Tsis tas li ntawd, cov alloy kev tiv thaiv kev tiv thaiv corrosion (SCC) ua rau nws zoo tshaj rau cov khoom siv thauj khoom zoo li rudder cov khoom lag luam thiab mast fittings. Naval Cov Kws Tsim Qauv Tshwj Xeeb Nws tus nqi bi-directional corrosion: ob qho tib si atmospherity (thaj chaw txaws) thiab kev ua tiav puv ntoob ua tau raws li ASTM G67 tus qauv. Cov khoom siv weldability tso cai rau cov qauv hull cov qauv yam tsis muaj kev sib cuam tshuam kev ncaj ncees, muaj txiaj ntsig tseem ceeb tshaj lwm cov hlau.
2. Yuav ua li cas txog cov ntawv pov thawj ua pov thawj Marine txawv los ntawm cov qauv txheej txheem kev lag luam qib?
Marine daim ntawv pov thawj rau 6061 cov pas nrig cuam tshuam nrog cov kev cai siv tau siv tau ntau dua li cov ntawv ceeb toom kev ntsuam xyuas zeb. Cov tib neeg kev faib tawm xws li DNV-GL thiab Abs xav tau:
Triple-stage corrosion testing (salt spray >3000 teev, Galvanic Coupling tsom xam, thiab tiag tiag-ntiaj teb dej hiav txwv cov dej hiav txwv kev sim siab)
Kev Tshawb Fawb Microstructural ntawm Grain Flow hauv Extruded Rods los tiv thaiv cov intergranular initiation
Charpy V-Motch cuam tshuam kev sim ntawm -40 Qib rau Simulate Onrctic kev ua haujlwm
Cov txheej txheem no ua kom cov khoom siv cov khoom siv kho tshuab tom qab cyclic ntub / ua kom qhuav. Qhov tseem ceeb, muaj ntawv pov thawj Marine-qib Rods yuav tsum tau ua kom tsawg dua 0.1mm / xyoo kuaj tus nqi hauv Astm B117 kev kuaj mob dhau ntawm chav kawm 2 ib astm G46 tus qauv.
3. Cov kev txiav txim siab tsim tshwj xeeb li cas los siv 6061 cov pas nrig hauv nkoj?
Cov cuab yeej ua tubrog nkoj yuav tsum muaj npe rau 6061 txoj kev coj cwj pwm anisotropic hauv cov qauv tsim kev cai lij choj hauv marine. Thaum lub alloy muaj cov peev xwm ntev heev (tawm tswv yim), nws qhov kev ntsuas tuab txo qis ntawm cov mast thiab keel tsim. Lwm qhov tseem ceeb ntawm kev tiv thaiv Cathodic Kev Tiv Thaiv Zoo: 6061 cov pas nrig txuas nrog zinc anodes (-0V vs muaj peev xwm ua kom muaj kev tiv thaiv zoo sib xws) kom tsis txhob muaj kev tiv thaiv hydrogen embrittlement. Cov neeg tsim qauv ntse feem ntau muab cov ntsiab lus los ntawm kev thuam cov ntsiab lus, kev tswj hwm kev tiv thaiv kev tiv thaiv kev tiv thaiv kev tiv thaiv kev tiv thaiv kev tiv thaiv thawj.
4. Yuav tiv thaiv cov tub rog-qib 6061 tiv thaiv biofouling piv rau lwm cov ntaub ntawv?
Lub Alloy lub ntuj biofouling tsis kam ntawm nws cov khoom siv electrochemical thiab cov yam ntxwv saum npoo. Tsis zoo li cov tooj liab-raws li cov tshuaj tiv thaiv kev daws teeb meem, 6061 cov pas nrig tsim kho cov thwj me uas ua kom muaj macroorganism kev sib hais thaum tso cai benign polobial txoj hnyuv. Qhov kev sib npaug no txo cov coefficients los ntawm 18-22% piv rau fouled steel nto. Advanced Marine-qib kev sib txawv tam sim no teeb meem micro-textured chaw (10-50μm qauv) thaum lub sij hawm tawv nqaij hydrophobicity los txo cov tawv ntoo me me. Cov kev nrhav no tshem tawm cov tshuaj tiv thaiv kab mob sib dhos, ua raws li IMO 2025 biofouling kev tswj hwm kev tswj hwm.
5. Dab tsi yog lub neej txij nkawm cov kev cai rau cov tub rog 6061 txhuas txhuas ua haujlwm?
Ib qho kev hloov pauv ntawm paradigm los ntawm reactive rau kev twv xyuas kev ua kev txij nkawm txhais tau tias 6061 txhuas march menine cov cuab tam tswj. Tsib-xyoo tshuaj xyuas lub sij hawm tsom rau:
Ultrasonic Thickness mapping los xyuas cov kab corrosion hlwb
EDDY Kev Ntsuas Tam Sim No Ntawm Welded Pob Qij Txhaum Rau Fatigue Backs
Cov kev ntsuam xyuas muaj zog ua kom ntsuas qhov ntsuas kom muaj nuj nqis ntxiv
Tam sim no cov neeg ua haujlwm tshiab corors Thaum ua ke nrog kev tiv thaiv kev tiv thaiv kev tiv thaiv kev tiv thaiv, cov kev tiv thaiv no txuas ntxiv lub neej ntev tshaj 30 xyoo Kawg-ntawm-lub neej rov ua pathways kom muaj 95% + kev rov qab khoom, cementing 6061 cov peev txheej ruaj khov.
