Stainless hlau kav dej
Vim li cas siv cov kav dej stainless hlau
Stainless hlau haus dej yeeb nkab 304 cov khoom noj khoom haus qib dej yeeb nkab yog cov khoom tsis muaj tshuaj lom thiab tsis muaj mob rau kev noj qab haus huv thiab kev nyab xeeb.Qhov zoo ntawm stainless hlau haus cov kav dej muaj xws li kev tiv thaiv ib puag ncig, kev ua haujlwm ntev, lub zog siab, kev nyab xeeb, thiab kev ua tau zoo.
1. Kev tiv thaiv ib puag ncig thiab kev noj qab haus huv: Cov yeeb nkab steel hlau stainless yog ntsuab, ib puag ncig tus phooj ywg, thiab noj qab nyob zoo, thiab yuav tsis ua rau muaj kev phom sij, uas yuav ua rau muaj kev ua qias tuaj rau hauv dej.
2. Flow influence: Sab hauv phab ntsa ntawm cov kav dej stainless hlau yog du, tsis yooj yim rau scale, thiab tsis cuam tshuam rau cov dej ntws.
3. Kev laus: 304 zaub mov qib stainless hlau tsis xeb lossis hnub nyoog
4. Kev phom sij zais ntawm cov dej xau: Qhov kev phom sij zais ntawm cov dej xau hauv cov kav dej stainless hlau yog me me, thiab cov xov txuas txuas tshuab tuaj yeem xyuas kom cov kav dej tsis txhob xau.
5. Kev pab lub neej: cov kav dej stainless hlau tau siv rau ntau tshaj 70 xyoo, tib lub neej ntawm lub tsev, thiab tsis tas yuav tsum muaj kev saib xyuas hauv lub sijhawm tom ntej.
6. Pipeline lub zog: stainless hlau dej yeeb nkab khoom muaj lub zog siab, tuaj yeem tiv taus siab ntawm 89Mpa, stainless hlau tsis xeb lossis hnub nyoog
7. Lub peev xwm siab-cov kabmob: cov dej tsis muaj steel muaj lub peev xwm siab-cov kabmob thiab tuaj yeem tiv taus 2.5Mpa siab
8. Pipeline deformation: stainless hlau dej yeeb nkab muaj ib tug me me thermal expansion coefficient thiab yuav tsis deform
Cov txiaj ntsig ntawm kev siv cov kav dej stainless hlau
Stainless hlau dej kav dej yog cov kav dej zoo heev.Raws li kev ntsuas qhov tseeb, feem ntau, kev ua haujlwm siab ntawm cov kav dej stainless hlau tuaj yeem ncav cuag ntau dua 2.5Mpa.Nws cov thermal conductivity tsawg yog 1/25 ntawm cov yeeb nkab tooj liab thiab 1/4 ntawm cov yeeb nkab hlau.Nws cov nyhuv thermal rwb thaiv tsev yog qhov zoo tshaj plaws ntawm tag nrho cov kav hlau, thiab nws tuaj yeem siv tau ntev hauv qhov kub ntawm -40 ℃ ~ 120 ℃.Qhov kub siab tshaj plaws ntawm cov dej hauv tsev yog 100 ℃.Txawm hais tias nws yog qhov kub thiab txias, cov khoom siv tau zoo heev;thiab nws muaj zoo ductility thiab toughness.Lub zog siab ntawm cov kav dej stainless hlau zoo heev txo qhov muaj peev xwm ntawm cov dej xau cuam tshuam los ntawm cov quab yuam sab nraud, txo cov dej ntws tawm, thiab ua kom cov dej muaj peev xwm tiv thaiv thiab siv tau zoo.
Qhov zoo ntawm cov kav dej stainless hlau hla cov kav dej galvanized
Stainless hlau yog cov khoom siv hlau.Stainless hlau yog hais txog cov hlau uas tsis muaj zog corrosive media xws li huab cua, chav, thiab dej, thiab tshuaj lom neeg corrosive media xws li acid, alkali, thiab ntsev.Nws tseem hu ua stainless acid-resistant steel.
Hauv kev siv tswv yim, cov hlau uas tsis muaj zog corrosive media feem ntau hu ua stainless hlau, thiab cov hlau uas tiv taus tshuaj lom neeg corrosion yog hu ua acid-resistant steel.Vim qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg ntawm ob, tus qub tsis tas yuav tiv taus cov tshuaj lom neeg corrosion, thaum lub tom kawg yog feem ntau stainless.Kev tiv thaiv corrosion ntawm stainless hlau nyob ntawm cov alloying ntsiab muaj nyob rau hauv cov hlau
Cov ntsiab lus alloying ntawm stainless hlau muaj xws li npib tsib xee, molybdenum, titanium, niobium, tooj liab, nitrogen, thiab lwm yam, kom ua tau raws li qhov yuav tsum tau ua rau cov qauv thiab cov khoom ntawm stainless hlau rau ntau lub hom phiaj.Stainless hlau yog yooj yim corroded los ntawm chloride ions, vim hais tias chromium, npib tsib xee, thiab chlorine yog isotopes, thiab cov isotopes yuav pauv thiab assimilate los ua stainless hlau corrosion.
Cov tshuaj tiv thaiv corrosion ntawm cov tshuaj muaj pes tsawg leeg stainless hlau txo nrog kev nce ntawm cov ntsiab lus carbon.Yog li ntawd, cov ntsiab lus ntawm cov hlau tsis muaj steel feem ntau yog tsawg, nrog rau qhov siab tshaj plaws ntawm tsis ntau tshaj 1.2%, thiab wc (cov ntsiab lus carbon) ntawm qee cov hlau tseem qis dua 0.03% (xws li 00cr12).Lub ntsiab alloying nyob rau hauv stainless hlau yog Cr (chromium).Tsuas yog thaum cov ntsiab lus Cr ncav cuag ib qho nqi, cov hlau muaj corrosion kuj.Yog li, stainless hlau feem ntau muaj cov ntsiab lus cr (chromium) tsawg kawg yog 10.5%.Stainless hlau kuj tseem muaj ni, ti, mn, n, nb, mo, si, cu thiab lwm yam khoom.Stainless hlau tsis ua rau corrosion, pitting, xeb lossis hnav.Stainless hlau kuj yog ib qho ntawm cov ntaub ntawv muaj zog tshaj plaws hauv cov ntaub ntawv siv hlau.Vim tias stainless hlau muaj qhov zoo corrosion kuj, nws muaj peev xwm mus tas li tswj lub engineering kev ncaj ncees ntawm cov khoom siv.Chromium-muaj cov hlau tsis muaj steel kuj sib xyaw ua ke txhua yam muaj zog thiab elongation siab, thiab yooj yim rau txheej txheem thiab tsim cov khoom kom tau raws li cov kev xav tau ntawm cov kws tsim qauv thiab cov qauv tsim qauv.
