High Strength DNV Shipbuilding Steel Phaj Qib AH32 DH32 AH36 EH36 AH40

Lub zog siab DNV shipbuilding steel phaj ntawm qib AH32, DH32, AH36, EH36, thiab AH40 tau siv dav hauv kev lag luam shipbuilding vim lawv cov khoom tshwj xeeb thiab kev ua tau zoo.

Mechanical Properties:
Cov cuab yeej cuab tam ntawm cov qib steel no zoo heev. Qib AH32 feem ntau nthuav tawm lub zog tawm ntawm yam tsawg kawg 315 MPa, lub zog tensile xws li 440 txog 590 MPa, thiab elongation tsis tsawg dua 22%. Qib DH32 qhia tau hais tias cov yam ntxwv zoo sib xws tab sis nrog kev txhim kho cov khoom hauv qee yam. Qib AH36 muaj lub zog ntau dua ntawm qhov tsawg kawg nkaus 355 MPa thiab lub zog tensile xws li 490 txog 630 MPa, nrog rau qhov elongation tsawg kawg yog 21%. Qib EH36 ntxiv txhim kho cov tshuab ua haujlwm, thaum qib AH40 muab lub zog siab tshaj plaws ntawm cov qib no.

Kev soj ntsuam zoo:
Cov txheej txheem kev soj ntsuam nruj nruj yog siv thoob plaws hauv cov txheej txheem tsim khoom kom ntseeg tau tias cov hlau phaj ua tau raws li cov qauv teev tseg. Qhov no suav nrog kev ntsuam xyuas tshuaj muaj pes tsawg leeg, kev tshuaj xyuas microstructure, kev tshuaj xyuas cov cuab yeej cuab tam, thiab kev ntsuam xyuas tsis muaj kev puas tsuaj txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau, nws, nws muaj cov txheej txheem microstructure.

Welding Performance:
Cov qib steel no muaj kev ua haujlwm zoo vuam, ua kom muaj txiaj ntsig zoo thiab sib koom ua ke ntawm cov khoom hauv nkoj tsim. Txawm li cas los xij, cov txheej txheem vuam tsim nyog thiab cov khoom siv yuav tsum raug xaiv kom ua tiav cov pob qij txha muaj zog thiab txhim khu kev qha. Kev saib xyuas tshwj xeeb yuav tsum tau muab rau preheating thiab tom qab vuam kev kho cua sov, nyob ntawm seb cov thickness thiab cov kev cai tshwj xeeb ntawm cov hlau phaj.

Kev Siv Tshuab:
Kev ua tiav ntawm cov hlau phaj no suav nrog cov txheej txheem siab heev xws li kub dov, tswj kev ua kom txias, thiab kev kho cua sov tom qab los ua kom zoo dua microstructure thiab cov khoom siv kho tshuab. Machining kev khiav hauj lwm, xws li txiav, drilling, thiab dabtsi yog khoov, kuj tuaj yeem ua tau los ua cov phaj raws li cov qauv tsim ntawm lub nkoj tsim.

Hauv kev xaus, lub zog siab DNV shipbuilding steel phaj ntawm qib AH32, DH32, AH36, EH36, thiab AH40 yog cov ntaub ntawv tseem ceeb hauv kev tsim cov nkoj niaj hnub, muab qhov tsim nyog lub zog, kav ntev, thiab kev ntseeg siab rau kev tsim kho cov nkoj muaj kev nyab xeeb thiab muaj txiaj ntsig. Lawv cov khoom zoo tshaj plaws, ua ke nrog kev tswj hwm nruj thiab tsim nyog ua thiab vuam cov txheej txheem, ua kom muaj kev ncaj ncees thiab kev ua tau zoo ntawm cov qauv hauv hiav txwv hauv kev xav tau kev ua haujlwm.

Cov qauv zoo ntawm nkoj phaj steel feem ntau suav nrog cov hauv qab no:

- Qib muaj zog thiab lub zog tawm los: Lub zog muaj zog ntawm cov qauv steel hauv cov qauv kev qhia tshwj xeeb ntawm Tuam Tshoj Classification Society muaj peb theem zog (xws li A32, A36, A40, thiab lwm yam), thiab txhua qib tau muab faib ua plaub qib zoo (A , D, E, F). Piv txwv li, lub zog tawm los ntawm A32, D32, E32, thiab F32 tsis tsawg dua 315 N / mm²; lub zog tawm los ntawm A36, D36, E36, thiab F36 tsis tsawg dua 355 N / mm²; Lub zog tawm los ntawm A40, D40, E40, thiab F40 tsis tsawg dua 390 N / mm².
- Lub zog tensile: Lub zog tensile ntau ntawm nkoj phaj steels ntawm qib sib txawv thiab qib zoo kuj txawv. Piv txwv li, lub zog tensile ntawm A32, D32, E32, thiab F32 yog 440 - 570 N / mm²; tensile lub zog ntawm A36, D36, E36, thiab F36 yog 490 - 620 N / mm²; tensile lub zog ntawm A40, D40, E40, thiab F40 yog 510 - 660 N / mm².
- Impact toughness: Nkoj phaj steels ntawm txhua qib zog tau muab faib ua qib zoo raws li lawv qhov sib txawv ntawm qhov sib txawv. A, D, E, thiab F feem sawv cev rau qhov kev ua tau zoo ntawm qhov sib txawv ntawm qhov kub thiab txias (0 degree, -20 degree, -40 degree, -60 degree, thiab lwm yam).
- Cov tshuaj muaj pes tsawg leeg: Cov ntsiab lus ntawm ntau lub ntsiab lus tau teev tseg, xws li carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), thiab lwm yam. Piv txwv li, cov tshuaj muaj pes tsawg leeg yuav tsum tau ua. ntawm AH36 nkoj phaj hlau suav nrog cov ntsiab lus carbon tsawg dua lossis sib npaug rau 0.18% thiab manganese cov ntsiab lus ntawm 0.90 - 1.60%, thiab lwm yam.
- Lub xeev tus me nyuam: xws li annealing, kub dov, normalizing, tswj dov, thiab lwm yam. Lub xeev ntawm lub nkoj sib txawv steel phaj yuav txawv. Piv txwv li, lub xeev xa ntawm EH36 nkoj phaj yog normalizing thiab TM; Lub xeev xa khoom ntawm FH36 nkoj phaj yog normalizing, TM, thiab quenching thiab tempering.
- Lwm yam: Nws kuj suav nrog kev tshuaj xyuas cov ntawv pov thawj zoo, uas yuav tsum tau muab cov ntawv pov thawj zoo, suav nrog cov kev xav tau tshwj xeeb, cov ntaub ntawv pov thawj zoo thiab daim ntawv pov thawj tus lej, cov khoom siv hluav taws xob, cov qib kev kawm, tshuaj muaj pes tsawg leeg thiab cov khoom siv hluav taws xob, kev faib tawm hauv zej zog kev pom zoo daim ntawv pov thawj , thiab cov neeg soj ntsuam kos npe, thiab lwm yam; Nyob rau hauv cov nqe lus ntawm kev tshuaj xyuas lub cev, nws yuav tsum tau hais tias lub cev cov khoom ntawm shipbuilding steel muaj cov chaw tsim tshuaj paus lub cim, kev faib pawg neeg cov kev pom zoo cov cim, thiab cov kev tsis pom zoo los ntawm kev siv cov xim framing los yog pasting cov cim, thiab cov tsos yog du thiab tsis muaj teeb meem. .

Tsis tas li ntawd, kev faib cov koom haum nyob rau hauv ntau lub teb chaws thiab cheeb tsam tej zaum yuav muaj me ntsis txawv cov qauv thiab cov kev cai. Cov koom haum kev faib tawm feem ntau suav nrog CCS ntawm Tuam Tshoj, ABS ntawm Tebchaws Meskas, GL ntawm Lub Tebchaws Yelemees, BV ntawm Fabkis, DNV ntawm Norway, NK ntawm Nyiv, LR ntawm Tebchaws Askiv, RINA ntawm Ltalis, KR ntawm Kaus Lim Qab Teb, thiab lwm yam. Cov qauv kev coj ua xws li raws li GB/T 712 - 2011 ntawm Tuam Tshoj, thiab lwm yam.

Cov qauv zoo ntawm lub nkoj phaj steel lub hom phiaj kom ntseeg tau tias nws cov kev ua tau zoo hauv kev ua haujlwm xws li kev tsim khoom nkoj thiab kev tsim khoom hauv hiav txwv kom lav tau cov txheej txheem lub zog, kev nyab xeeb, thiab kav ntev ntawm cov nkoj. Hauv kev siv cov tswv yim, nws yog ib qho tsim nyog los xaiv cov nkoj phaj hlau uas ua tau raws li cov qauv zoo raws li lub nkoj tshwj xeeb, ib puag ncig kev ua haujlwm, thiab cov kev xav tau ntawm kev faib tawm hauv zej zog.

Cim npe nrov: siab zog dnv shipbuilding steel phaj qib ah32 dh32 ah36 eh36 ah40, Tuam Tshoj siab zog dnv shipbuilding steel phaj qib ah32 dh32 ah36 eh36 ah40 lwm tus neeg, Hoobkas