CCSA CCSB Nkoj Lub Tsev Hlau Phaj

 

 

 

Cov hauv qab no yog cov teebmeem ntawm cov ntsiab lus alloy xws li chromium thiab npib tsib xee ntawm kev tiv thaiv corrosion ntawm shipbuilding steel daim hlau:

 

Cov teebmeem ntawm chromium (Cr) element

 

Tsim ib zaj duab xis oxide

 

Chromium tuaj yeem hnov ​​​​mob nrog oxygen hauv nkoj tsim cov hlau daim hlau los ua ib qho ntom ntom chromium oxide (Cr₂O₃) tiv thaiv zaj duab xis. Cov yeeb yaj kiab no tau nruj nreem txuas rau saum npoo ntawm cov hlau phaj thiab tuaj yeem tiv thaiv cov xov xwm corrosive xws li dej hiav txwv, oxygen, thiab corrosive ions los ntawm kev sib cuag ncaj qha rau sab hauv ntawm cov hlau phaj. Piv txwv li, nyob rau hauv ib puag ncig dej hiav txwv, cov yeeb yaj kiab tiv thaiv no tuaj yeem txo qhov kev yaig ntawm chloride ions (Cl⁻) ntawm cov phaj hlau. Chloride ions yog ib qho ntawm cov ntsiab lus tseem ceeb ua rau corrosion ntawm cov ntaub ntawv hlau.

 

 

 

 

 

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 los yog sib npaug 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 li 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.

 

 

Cov teebmeem ntawm nickel (Ni) element

 

Stabilizing lub koom haum qauv

 

Nickel tuaj yeem ua rau cov qauv siv lead ua ntawm shipbuilding steel daim hlau ruaj khov dua. Nyob rau hauv lub microscopic qauv ntawm cov hlau phaj, npib tsib xee yuav muab sib npaug zos faib nyob rau hauv ferrite thiab pearlite, txo crystal defects thiab permeation thiab diffusion tus nqi ntawm corrosive xov xwm ntawm lub siv lead ua interface. Piv txwv li, nyob rau hauv ib puag ncig uas tsis muaj qhov kub thiab txias, npib tsib xee tuaj yeem cuam tshuam qhov tshwm sim ntawm martensitic transformation hauv cov hlau phaj thiab zam kev tawg ntawm cov ciam teb los ntawm kev ntxhov siab sab hauv tsim los ntawm cov theem kev hloov pauv, yog li txhim kho cov kev ua tau zoo ntawm cov phaj hlau hauv. ib tug tsawg - kub thiab corrosive ib puag ncig.

 

Txhawb nqa cov nyhuv passivation

 

Nickel pab txhawb lub passivation ntawm lub nkoj tsim steel daim hlau. Nyob rau hauv ib puag ncig oxidizing, npib tsib xee tuaj yeem koom tes nrog cov ntsiab lus xws li hlau thiab chromium los tsim cov yeeb yaj kiab ruaj khov dua nyob rau saum npoo ntawm cov hlau phaj. Cov zaj duab xis passive no tuaj yeem tsis tsuas yog tiv thaiv kev nkag mus ntawm cov xov xwm corrosive, tab sis kuj tuaj yeem kho tus kheej sai sai thaum nws raug mob hauv zos. Piv txwv li, thaum lub npoo ntawm lub nkoj tsim steel phaj yog mechanically scratched los yog hauv zos corroded, cov npib tsib xee - uas muaj steel phaj tuaj yeem rov tsim cov yeeb yaj kiab passive nyob rau lub sijhawm luv luv thiab rov ua nws cov corrosion kuj.

 

 

 

 

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 CCSA CCSB Nkoj Lub Tsev Hlau Phaj, thiab tsim cov kev qhia 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: ccsa ccsb nkoj tsev steel phaj, Tuam Tshoj ccsa ccsb nkoj tsev steel phaj lwm tus neeg, hoobkas