1. Q: Dab tsi yog lub ntsiab txhais thiab cov yam ntxwv ntawm GB / T 712 Eh790 Yeeb Nkab?
A: Nws yog ultra - high {1}- lub zog steel tshwj xeeb tsim rau cov qauv khoom noj khoom haus rau cov hlau (GB / T 75 T 712). Txoj Cai Piav Qhia:
"E" sawv ntsug rau -60
"H790" qhia tau ib qho txiaj ntsig lub zog ntawm ntau dua lossis muaj txiaj ntsig zoo li DH790, tab sis nrog kev txhim kho qis qis- kev ua haujlwm kub.
Cov yam ntxwv tseem ceeb: Nws sib txuas ntxiv ultra - lub zog tseem ceeb ntawm {qib siab 60 degree, tshwj xeeb tau tsim kho rau kev siv hauv cov kab ntawv loj xws li Arctic Lng CarrersiBles.
2. Q: Piv rau DH790 thiab FH690 qib kawm hauv tib koob, dab tsi ua rau Eh790 Irreplaceable? A:
Tsawg - kub kev ua tau zoo DH790: DH790 tsuas yog yuav tsum tau xeem lub zog
Lub zog dhau ntawm FH690: Thaum FH690: Thaum FH690 muaj ntau dua cov zog (}}} 80}} 80 degree), ua rau nws tsis muaj peev xwm ua tau raws li lawv cov kev xav tau.
Kev lag luam nyiaj txiag: piv rau 5% npib tsib xee cov ntsiab lus ntawm FH690, EH790 muaj qhov kev xaiv nroog qis (3.5%} 4.5%} 4.5%} 4.5%} 4.5%} 4.5%} 4.5%} 4.5%} 4.5%} 4.5%} 4.5%} 4.5%} 4.5%} 4.5%}
3. Q: Dab tsi yog cov cim tshwj xeeb ntawm EH790 lub alloy tsim thiab cov khoom siv mechanies? A:
Kev Lag Luam Tsim Tawm:
Cov pa roj carbon (C Tsawg
Siv Nano {-} Naab Dag Zog Ntxiv (ntxiv rau ntawm V, Ti, thiab NB), cov noob loj nce mus txog Astm Qib 12 lossis siab dua saud.
Kev Kawm Ntawv:
Paib lub zog ntau dua los yog sib npaug rau 790 MPa, tensile lub zog ntau dua lossis sib npaug rau 890-10 mpa;
Kev Cuam Tshuam Lub Zog Ntawm- 60 kev kawm ntau dua lossis sib npaug ntawm 34%, z-kev txo ntawm thaj chaw ntau dua lossis sib npaug rau Lamellar kua muag);
Kis dhau Norseok M630 tus qauv RANGRITTLEMENT XEEM (haum rau kev sib sib zog nqus {} Hiav txwv hydrogen hydrogen ib puag ncig).
4. Q: Vim li cas thiaj yog Eh790 cov khoom siv tseem ceeb rau Arctic Lng Carrier?
A:
Kev daws cov ntsiab lus kev lag luam:
Tsoos Luaj Carriers (xws li cov siv AH36) yog nquag mus rau brittle begiture hauv Arctic. Lub EH790 ua tau ob qho tib si cov kev xav tau ntawm -60℃cryogenic tank txhawb nqa qauv thiab hull dej ua hauj lwm tsis kam.
Russia "Arctic-2" LNG Project tau pom tias kev siv lub zog Eh790 txo mus los ntawm 50%.
Tshwj xeeb txheej txheem sib xyaw:
Vuam nrog cov hlau tsis muaj tsawg -} {{{{2} - kev cuam tshuam cheeb tsam tsawg dua los yog sib npaug rau 3 hli). Cov roj carbon tsawg tsawg tus qauv tsim ntawm Eh790 ua rau nws ua cov khoom siv hauv paus siab.
5 Dab tsi yog qhov kev qhia txhim kho yav tom ntej? A:
Kev Pab Cuam Haujlwm:
Metallurgy: yuav tsum tau muaj dual lub puab tsaig Induction melting melting ua rau yaj, tswj [n] tsawg dua lossis sib npaug lossis sib npaug li 1.5 ppm;
Dov
Vuam: Yuav tsum siv ni {{- raws li ernicrmo-13), preheat rau 180-200 degree, thiab ua kom tag nrho cov ultrasonic thiab theem ultrasonic thiab ntsuas ua ntej ntxiv tom qab vuam.
Yav Tom Ntej:
Hybrid Design nrog cov khoom siv sib xyaw (xws li carbon fiber -}} txhawb nqa Eh790 pob qij txha);
Kev loj hlob ntawm tus txawj ntse Eh790 (kos cov fiber ntau optic sensors los saib xyuas tiag tiag- kev ntxhov siab thaum lub sijhawm polar).
