Kev pom kev rau siab -Shipbuilding Steels: AH36, DH36, EH36, thiab ABS AH32
Hauv kev tsim khoom hauv nkoj thiab sab nrauv engineering, kev xaiv cov khoom siv yog qhov tseem ceeb rau kev ncaj ncees, kev nyab xeeb, thiab lub neej ntev. Cov hlau siv hauv kev tsim lub nkoj yuav tsum tiv taus cov dej hiav txwv corrosive, dynamic yoj-kev ntxhov siab, thiab kub heev. Ntawm cov qhab-nees tshaj plaws yogAW 36, DH 36, EH 36, thiabABS AH32. Cov npe no, tswj hwm los ntawm kev faib cov koom haum xws li American Bureau of Shipping (ABS), qhia txog cov theem tshwj xeeb ntawm cov khoom muaj zog, tawv, thiab cov txheej txheem tsim khoom.
ABS Classification System
"ABS" prefix qhia tias cov hlau tau ntawv pov thawj los ntawm American Bureau of Shipping, kom ua raws li nws cov kev cai nruj rau cov khoom siv thiab vuam. Cov tsiaj ntawv (A, D, E) thiab cov lej (32, 36) qhia cov hlau qhov tsawg kawg nkaus lub zog thiab nws Charpy V-notch (CVN) cuam tshuam rau qhov kub thiab txias.
Number Designation (32 vs . 36):Tus lej sawv cev rau qhov tsawg kawg nkaus tawm lub zog hauv ksi (kilopounds ib square inch).ABS AH32muaj qhov tsawg kawg nkaus tawm lub zog ntawm 31.5 ksi (kwv yees li 220 MPa), thaumAW 36(nrog rau DH36 thiab EH36) muaj zog dua ntawm 51 ksi (kwv yees li 355 MPa). Yog li, Qib 36 steels yog qhov nyiam rau cov hlab ntsha loj thiab qhov chaw hnyav uas qhov hnyav txo thiab kev ntxhov siab ntau dua yog qhov tseem ceeb.
Daim Ntawv Sau Npe (A, D, E):Qhov no qhia txog qhov cuam tshuam toughness qib ntawm qhov sib txawv ntawm qhov kev pabcuam kub.
Qib A (xws li AH36, AH32):Txheem toughness, kuaj ntawm 0℃(32℃F). Haum rau ib puag ncig me me lossis cov txheej txheem thib ob.
Qib D (piv txwv li, DH36):Txhim kho toughness, kuaj ntawm -20℃(-4℃F). Zoo tagnrho rau cov cheeb tsam txias dua thiab nthuav tawm cov khoom hull.
Qib E (piv txwv li, EH36):Qhov siab tshaj plaws, sim ntawm -40℃(-40℃F). Yuav tsum muaj rau cov qauv tseem ceeb hauv cov nkoj polar-class lossis sub-zero ua haujlwm.
Paub meej Qib Profiles
AW 36yog lub chaw ua haujlwm ntawm kev lag luam shipbuilding. Nws ua ke nrog 355 MPa lub zog tawm los nrog nruab nrab qis -kev ua haujlwm kub (0℃cuam tshuam kuaj). Nws yog dav siv rau kev tsim vaj tsev dav dav, decks, thiab bulkheads hauv temperate- cov nkoj dej. Nws lub zog siab - rau - qhov hnyav piv tso cai rau cov phaj thinner piv rau cov hlau me me, txo qhov hnyav ntawm lub nkoj.
DH 36txhim kho kev ua tau zoo nrog lub lav Charpy cuam tshuam tus nqi ntawm 34 Joules ntawm -20 degree. Qhov no ua rau nws tseem ceeb rau lub nkoj sab, cov tswv cuab lub zog ntev, thiab cov qauv ua haujlwm nyob rau hauv lub caij ntuj no los yog sab qaum teb hiav txwv txoj kev. Nws tseem yog qhov yuav tsum tau ua rau qee thaj chaw tseem ceeb raws li tau hais los ntawm kev faib cov cai.
EH 36sawv cev rau tus pinnacle ntawm tus qauv siab -lub zog shipbuilding steel. Nrog kev cuam tshuam toughness xyuas ntawm -40 degree,EH 36tau teev tseg rau Arctic -cov nkoj hauv chav kawm, cov dej khov nab kuab, thiab cov ntug dej hiav txwv drilling platform uas cov pob txha tawg yog qhov kev pheej hmoo loj. Nws feem ntau xav tau cov txheej txheem vuam tshwj xeeb thiab preheating.
ABS AH32occupies ib niche ntawm cov hlau me me thiab Qib 36 cov ntaub ntawv. Txawm hais tias qis zog (220 MPa tawm los), nws tseem muaj zog dua li cov qauv hlau zoo tib yam. Nws yog feem ntau siv rau hauv cov nkoj me me, kev kho cov haujlwm, thiab qhov tsis tshua muaj qhov tseem ceeb ntawm cov nkoj loj uas muaj qib 36 tag nrho tsis tsim nyog tab sis kev txhim kho toughness ntawm cov hlau me me yog qhov zoo. Txawm li cas los xij, nyob rau hauv niaj hnub loj - nkoj tsim, AH36 feem ntau hloov AH32 vim kev lag luam zoo dua thiab kev tsim qauv yooj yim.
Cov ntsiab lus tseem ceeb rau kev yuav khoom thiab Fabrication
1. Ntawv pov thawj:Txhua daim hlau yuav tsum tau muab nrog daim ntawv pov thawj ABS zeb (piv txwv li, ABS AH36 lossis ABS AH32), txheeb xyuas cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab cov kev ntsuas cuam tshuam.
2. Weldability:Cov no yog cov zoo-grain tua steels nrog tswj carbon sib npaug (CEV). Qib EH36 thiab DH36 tej zaum yuav xav tau qis - hydrogen welding consumables thiab ua ntej - los yog post- cua sov, tshwj xeeb tshaj yog nyob rau hauv tuab gauges.
3. Kev tiv thaiv corrosion:Txawm tias lawv lub zog, cov hlau no tsis yog stainless; lawv nyob ntawm cov coatings, txiab anodes, lossis cathodic tiv thaiv dej hiav txwv corrosion.
4. Thickness Range:Hom nkoj tsim daim hlau sib txawv ntawm 4 mm txog 100 mm. Thicker seem ntawm EH36 xav kom nruj dua dov thiab kev kho cua sov txheej txheem.
vim li cas ho xaiv shipbuilding steel phaj?
Xaiv qib zoo -AW 36, DH 36, EH 36, los yogABS AH32-yog qhov sib npaug ntawm cov neeg kho tshuab lub zog, kev pabcuam kub, thiab tus nqi. Rau cov dej hiav txwv dej hiav txwv dav dav, AH36 txaus. Rau lub caij ntuj no North Atlantic txoj kev, DH36 raug yuam. Rau kev ntoj ke mus ncig teb chaws, EH36 tsis yog - sib tham. Lub caij no,ABS AH32tseem yog qhov kev xaiv siv tau rau kev siv lub luag haujlwm sib zog. Kev nkag siab txog cov kev sib txawv no ua kom muaj kev tswj hwm kev tswj hwm, kev nyab xeeb ntawm kev ua haujlwm, thiab kev lag luam kev lag luam hauv ib puag ncig marine.
ib - nres kev daws teeb meem
pab neeg tshaj lij
siab zoo
Xaiv YUXIN steel pawg, thiab qhov koj yuav tsis yog cov hlau phaj nkaus xwb, tab sis kuj tseem muaj kev lav phib xaub tiav thiab muaj lub luag haujlwm.
Peb qhov chaw nyob
Tianjin, Suav
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FAQ
01.Lub npe ntawm daim phiaj nkoj txiav txim li cas? Piv txwv li, CCS A txhais li cas?
A: Qhia tias lub zog theem yog lub zog dav dav. Lub zog dav dav hlau daim hlau tau muab faib ua plaub qib: A, B, D, thiab E. Qhov sib txawv tseem ceeb nyob rau hauv qhov ntsuas kub rau qhov cuam tshuam rau qhov hnyav (qib A ntawm 0 degree, qib B ntawm 20 degree, qib D ntawm -20 degree, thiab qib E ntawm -40 degree).
02.Thaum yuav daim phiaj nkoj, koj tuaj yeem muab cov ntaub ntawv dab tsi?
Traceability: Lub cub tawg tooj thiab batch naj npawb ntawm daim ntawv pov thawj yuav tsum ua raws li cov cim lub cev ntawm cov hlau phaj.
Cov ntaub ntawv: Nws yuav tsum suav nrog cov ntaub ntawv ntsuas tseeb xws li tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab (yield, tensile zog, cuam tshuam tus nqi), thiab lwm yam.
03.Qhov kev txiav txim yam tsawg kawg nkaus yog dab tsi?
04.Koj puas tuaj yeem muab kev pabcuam txiav thiab ua haujlwm?
Tuam Tshoj ib qho - nres cov khoom siv hlau
Los ntawm kev nkag siab thiab nag lossis daus ntawm cov hlau ntau xyoo, Yuxin Group tau dhau los ua cov neeg ua haujlwm paub tab thiab cov chaw tsim khoom, muab ntau yam khoom rau ntau lub tuam txhab tsim kho thiab cov tuam txhab steel qauv thoob ntiaj teb. Ua tsaug rau Yuxin Group txoj kev tshaj lij thiab kev ncaj ncees, nws tau dhau los ua lub ntiaj teb - muaj npe nrov lag luam.
