Nkoj Tsev Khoom Marine Qib Steel Phaj

Raws li cov khoom siv tseem ceeb rau kev tsim cov nkoj, cov qib marine qib steel phaj muaj cov yam ntxwv zoo li nram no:

 

I. Cov qauv zoo thiab cov ntawv pov thawj nruj

 

Ua raws li kev faib tawm thoob ntiaj teb kev qhia tshwj xeeb hauv zej zog: Marine qib steel daim hlau yuav tsum ua tau raws li cov qauv nruj thiab cov qauv ntawm cov koom haum thoob ntiaj teb kev faib khoom loj xws li American Bureau of Shipping (ABS), Det Norske Veritas (DNV), thiab Tuam Tshoj Classification Society (CCS). Cov kev qhia tshwj xeeb no suav nrog ntau yam xws li tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab, vuam kev ua tau zoo, thiab kev tiv thaiv corrosion ntawm cov hlau phaj, kom ntseeg tau qhov zoo thiab kev ntseeg siab ntawm cov hlau phaj. Tsuas yog cov ntawv hlau uas tau lees paub los ntawm cov koom haum kev faib tawm no tuaj yeem siv rau kev tsim nkoj.

Kev soj ntsuam zoo thiab kev saib xyuas: Thaum lub sij hawm tsim khoom, marine qib steel phaj yuav raug soj ntsuam nruj thiab saib xyuas. Los ntawm kev xaiv cov khoom siv raw mus rau kev tswj cov txheej txheem ntau lawm thiab tom qab ntawd mus rau kev tshuaj xyuas cov khoom tiav, muaj kev tswj xyuas nruj hauv txhua qhov txuas. Cov cuab yeej tshuaj ntsuam xyuas qib siab thiab cov kws tshuaj xyuas cov kws tshaj lij yuav ua tiav kev tshuaj xyuas ntawm ntau yam ntsuas kev ua tau zoo ntawm cov hlau phaj kom ntseeg tau tias cov hlau phaj ua tau raws li qhov yuav tsum tau ua.

 

II. Ntau yam ntawm daim ntawv thov teb

 

Nkoj hull qauv: Marine qib steel daim hlau yog dav siv nyob rau hauv lub nkoj lub hull qauv, nrog rau tej yam xws li lub nkoj lub hull plhaub, lawj, thiab bulkhead. Cov khoom no yog cov qauv thauj khoom loj ntawm cov nkoj thiab yuav tsum muaj lub zog siab, zoo toughness, thiab corrosion kuj. Marine qib steel daim hlau tuaj yeem ua tau raws li cov cai no thiab muab kev txhawb nqa zoo rau cov nkoj.

Cov khoom siv nkoj: Ntxiv nrog rau lub nkoj hull qauv, marine qib steel daim hlau kuj tseem siv tau los tsim ntau yam khoom siv nkoj xws li cav hauv paus, kiv cua ncej, thiab crane hauv paus. Cov cuab yeej no dais loj loads thiab vibrations thaum lub sij hawm lub nkoj ua hauj lwm thiab yuav tsum tau cov ntaub ntawv uas muaj zog thiab zoo stability. Kev ua tau zoo ntawm marine qib steel daim hlau ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov khoom siv no.

 

Cov khoom	Paub meej
Tshuaj muaj pes tsawg leeg	C: Tsawg dua lossis sib npaug rau {{0}}.18%, Si: Tsawg dua lossis sib npaug rau 0.50%, Mn: 0.{ {5}}.65%, P: Tsawg dua lossis sib npaug rau 0.035%, S: Tsawg dua lossis sib npaug rau 0.035%, Cu: Tsawg dua lossis sib npaug rau 0.35%, Ni: Tsawg dua lossis sib npaug rau 0.40%, Cr: Tsawg dua lossis sib npaug li 0.20%, Mo: Tsawg dua lossis sib npaug li 0.08%, Nb: 0.02-0.05%, V: 0.05-0.10%, Ti: Tsawg dua lossis sib npaug 0.02%
Mechanical Properties	Yield Strength: Ntau dua lossis sib npaug ntawm 355 MPa, Tensile Strength: 490-630 MPa, Elongation: Ntau dua lossis sib npaug li 21%
Quenching	Tsis siv rau ib txwm siv. Feem ntau, AH36 marine steel phaj tsis quenched.

 

 

Hauv kev tsim cov qib marine qib steel daim hlau, chromium feem ntau tsis ntxiv los ntawm kev sib cais sib cais tab sis tau nkag mus rau hauv cov hlau phaj raws li hauv qab no:

 

 

I. Smelting txheej txheem

 

Blast furnace smelting: Thaum lub sij hawm blasting rauv smelting, raw cov ntaub ntawv xws li hlau ore, coke, thiab limestone yog rhuab mus rau high kub. Cov hlau nyob hauv cov hlau ore raug txo kom tsim cov hlau molten. Nyob rau tib lub sijhawm, qee cov ntsiab lus alloy, xws li chromium, kuj yuav raug txo thiab yaj hauv cov hlau molten thaum lub sijhawm ua haujlwm no.

Hloov los yog hluav taws xob rauv smelting: Cov hlau molten los ntawm lub qhov cub tawg yog xa mus rau lub tshuab hloov hluav taws xob lossis hluav taws xob rau kev ua kom zoo ntxiv. Thaum lub sijhawm ua haujlwm no, cov khoom siv chromium-muaj alloy raw khoom tuaj yeem muab ntxiv raws li xav tau los kho cov ntsiab lus chromium hauv steel phaj. Los ntawm kev tswj tsis tau xws li smelting kub, lub sij hawm, thiab cov pa oxygen txaus, cov chromium caij tuaj yeem sib xyaw ua ke hauv cov hlau molten.

 

II. Nruam Casting thiab Rolling txheej txheem

 

Nruam casting: Lub refined molten steel yog nruam nrum rau hauv steel billets. Thaum lub sij hawm nruam casting txheej txheem, cov chromium ntsiab nyob rau hauv cov hlau molten yuav muab faib nyob rau hauv lub steel billet raws li cov hlau molten solidifies. Los ntawm kev tswj cov txheej txheem nruam nruam xws li cua txias thiab tshem tawm ceev, lub microstructure ntawm steel billet tuaj yeem ua kom zoo dua qub, yog li txhim kho cov hlau phaj zoo.

Rolling: Lub steel billet yog xa mus rau ib tug dov zeb rau dov los tsim steel daim hlau ntawm txawv thicknesses thiab specifications. Thaum lub sij hawm dov txheej txheem, los ntawm kev tswj tsis tau xws li dov kub, txo qhov sib piv, thiab dov ceev, lub microstructure ntawm steel phaj yuav ua kom ntau ntom. Nyob rau tib lub sijhawm, kev faib cov ntsiab lus ntawm chromium hauv steel phaj tuaj yeem hloov kho ntxiv kom nws zoo ib yam.

 

 

 

Vim li cas thiaj xaiv peb?
Peb txaus siab rau peb lub peev xwm los muab cov kev cai daws teeb meem rau peb cov neeg siv khoom cov kev xav tau tshwj xeeb.
Peb txheeb xyuas thiab sib piv cov khoom dhau los thiab cov xwm txheej tam sim no ntawm peb Lub Tsev Nkoj Khoom Siv Marine Qib Steel Phaj, thiab tsim cov txheej txheem tshiab thiab cov txheej txheem.
Peb cov neeg siv khoom ntseeg peb kom xa cov khoom zoo Cold-rolled Steel khoom raws sij hawm thiab ntawm pob nyiaj siv.
Peb nruj me ntsis siv cov kev pab cuam sov so thiab kev xav tom qab muag, ua raws li kev txhim kho kev ua haujlwm zoo.
Peb muab ntau hom Cold-rolled Steel khoom kom tau raws li cov neeg siv khoom xav tau.
Peb ua raws li cov neeg siv khoom-centric thiab hom-taw qhia kev lag luam lub tswv yim, thiab txuas ntxiv muab cov neeg siv khoom lag luam txhim khu kev qha thiab zoo heev thiab cov kev pabcuam.
Peb lub Hoobkas tau cog lus los txhawb nqa cov qauv siab tshaj plaws ntawm kev nyab xeeb thiab zoo.
Txhua tus neeg ua haujlwm ntawm peb lub tuam txhab thiab txhua lub tuam haujlwm ua haujlwm ua ke los ua ke kev tswj hwm kev lag luam, kev tshaj lij thev naus laus zis, kev txheeb cais ntau thiab kev kawm ideological.
Peb cov khoom siv Cold-rolled Steel paub txog lawv cov kav ntev thiab kev ntseeg tau.
Kev vam khom rau qhov zoo tshaj plaws thiab muaj txiaj ntsig zoo ntawm cov khoom loj, peb muaj peev xwm ua tau raws li qhov sib txawv ntawm peb cov neeg siv khoom.

 

Cim npe nrov: Tuam Tshoj Marine Qib Steel Phaj Chaw tsim tshuaj paus, khoom muag, Hoobkas