Vim li cas kuv thiaj yuav tsum siv cov hlau tsis muaj steel rau cov kav dej hauv tsev hauv kuv lub tsev?
Nws tau tshaj tawm tias cov yeeb nkab steel yog cov khoom siv tseem ceeb rau cov kav dej nkev, thiab cov khoom siv hluav taws xob sab hauv tsev rau kev nkag tau muaj ntau nyob rau hauv, nyob rau hauv ib qho kev txais nyiaj txiag, ntau tus neeg pom zoo stainless hlau yeeb nkab. Stainless hlau yeeb nkab yog ib qho kev xaiv zoo tshaj plaws rau cov kav dej hauv tsev hauv tsev vim nws txoj kev sib txuas yooj yim, lub teeb zoo, kev tiv thaiv corrosion, muaj zog compression thiab cuam tshuam tsis kam, siab tensile zog, siab elongation, siab modulus ntawm elasticity tus nqi, me coefficient. ntawm thermal expansion, zoo nkauj tsos thiab ntau lwm yam zoo.
Cov khoom siv ntawm cov yeeb nkab steel hlau tsis zoo rau cov kav dej hauv tsev yog 304/304L, 316/316L thiab lwm yam austenitic stainless hlau thiab 444 ferritic stainless hlau.
Cov xwm txheej ntawm kev siv:
304/304L stainless hlau rau kev siv dav dav.
316 stainless hlau yog siv nyob rau hauv daim ntawv thov qhov twg corrosion kuj xav tau ntau tshaj 304/304L stainless hlau.
316L stainless hlau siv rau cov ntug hiav txwv dej, nqa cov tshuaj chlorine siab, faus nteg lossis corrosion tsis kam tshaj 316 stainless hlau yuav tsum tau muaj sijhawm.
444 stainless hlau siv rau lub sijhawm sib cuag nrog cov tshuaj chlorine siab.
Tsis tas li ntawd, thaum cov yeeb nkab stainless hlau los ntawm phab ntsa, hauv pem teb, yuav tsum tau muab tso rau hauv lub casing, thiab coaxial nrog lub casing. Lub casing tau pom zoo kom siv PPR yeeb nkab lossis lwm yam khoom tsis yog hlau ua los ntawm cov yeeb nkab nrog cov ntsiab lus chloride ion tsis pub tshaj 50 × 10-6. Qhov sib txawv ntawm lub casing thiab cov yeeb nkab steel hlau yuav tsum tau ntim nrog cov ntaub ntawv uas muaj kev sib khi zoo (feem ntau xaiv cov nplaim hluav taws ua npuas dej).