Lub Arctic Strand: Tswj Ductility thiab Impact Toughness ntawm -162 degree
SOLITE TECHNICAL ENCYCLOPEDIA|SERIES 05
Forensic Engineering Visual: Kev tshuaj xyuas ntawm cov ncauj lus tshwj xeeb.
Raws li lub ntiaj teb lub zog logistics hloov mus rau Liquefied Natural Gas (LNG) thiab Arctic shipping txoj kev, steel hlau ropes raug thawb mus rau hauv "Cryogenic Zone." Thaum qhov kub thiab txias qis li -162 degree, tus qauv siab- carbon steel tau dhau los ua "Ductile-to-Brittle Transition" (DBTT), qhov uas nws poob nws lub peev xwm deform thiab es tsis txhob tawg zoo li iav hauv kev cuam tshuam.
Charpy V-Ntch Test:
Txhawm rau tsim cov hlua khi rau qhov txias txias, SOLITE siv Charpy V-Kev ntsuas ntsuas ntsuas "Impact Toughness"- lub zog ntawm cov hlau tuaj yeem nqus tau thaum lub sijhawm tawg. Rau cov ntawv thov cryogenic, peb siv tshwj xeeb metallurgical infusions ntawm Nickel thiab Manganese, uas tswj cov theem austenite thiab tiv thaiv cov hlau los ntawm nkig.
Lub luag hauj lwm ntawm Core nyob rau hauv txias:
Synthetic fiber cores (FC) feem ntau ua nyuaj thiab "crushable" thaum txias heev. Rau LNG mooring thiab Arctic hoisting, peb tso cai rau kev siv Independent Wire Rope Cores (IWRC) uas tau kho nrog qis - kub, tsis yog - cov roj nplua nyeem khov. Qhov no ua kom cov hlua tseem hloov tau yooj yim thiab cov qauv, txawm tias nyob hauv Arctic Frost. Nyob rau hauv lub frozen frontier, lub zog yog tsis siv tsis muaj toughness.
Engineering Dawb Daim Ntawv Thov
Rau qhov loj - cov phiaj xwm loj loj uas xav tau cov khoom siv science lossis FEA kev ntxhov siab- qauv, thov hu rau peb lub rooj tshwj xeeb. Tag nrho cov ntaub ntawv qhia txuj ci muaj nyob rau thaum thov.
