Peb piav qhia txog cov ntsiab lus tseem ceeb ntawm ob yam khoom siv (hlau tsis hnyav lossis hlau tsis xeb) hauv qab no. Hlau tsis xeb ruaj khov dua hauv cov xwm txheej ntsev thiab tuaj yeem siv rau hauv kev lag luam zaub mov, thaum hlau tsis hnyav muaj zog dua thiab tuaj yeem muab kev nyuaj siab ntau dua rau cov kab tsav.

hlau mos:
Cov hlau tsis muaj zog, tseem hu ua cov hlau carbon, yog cov hlau uas siv ntau tshaj plaws hauv txhua daim ntawv thov, thiab cov hose clamps tsis muaj qhov tshwj xeeb. Nws kuj yog ib qho ntawm cov hlau dav dav uas npog ntau yam khoom siv kho tshuab. Qhov no txhais tau tias kev nkag siab thiab kev qhia meej txog qib kom raug tuaj yeem muaj kev cuam tshuam loj rau kev ua haujlwm ntawm cov khoom tiav. Piv txwv li, kev ntxhov siab thiab cov kev xav tau ntawm cov ntawv hlau uas tsim cov vaj huam sib luag ntawm lub cev tsheb txawv ntawm cov ntaub ntawv hose entrainment. Qhov tseeb, cov ntaub ntawv qhia txog cov khoom siv hose clamp zoo tshaj plaws tsis zoo ib yam li lub plhaub thiab cov hlua khi.

Ib qho tsis zoo ntawm cov hlau tsis muaj zog yog tias nws muaj qhov tsis kam tiv taus xeb ntuj tsim qis heev. Qhov no tuaj yeem kov yeej los ntawm kev siv cov txheej txheem txheej, feem ntau yog zinc. Qhov sib txawv ntawm cov txheej txheem txheej txheem thiab cov qauv txhais tau tias qhov tsis kam tiv taus xeb tuaj yeem yog ib qho chaw uas cov hose clamps sib txawv heev. Tus Txheej Txheem Askiv rau cov hose clamps xav tau 48 teev ntawm kev tiv taus rau cov xeb liab pom hauv 5% kev sim tshuaj tsuag ntsev nruab nrab, thiab ntau yam khoom siv kite tsis muaj cim tsis ua raws li qhov yuav tsum tau ua no.

Cov hlau tsis xeb:
Cov hlau tsis xeb yog qhov nyuaj dua li cov hlau tsis muaj zog hauv ntau txoj kev, tshwj xeeb tshaj yog thaum nws los txog rau cov hose clamps, vim tias cov tuam txhab tsim khoom siv nyiaj ntau siv cov khoom sib xyaw ua ke los muab cov khoom lag luam nrog cov nqi tsim khoom qis dua thiab txo qis kev ua tau zoo.

Ntau lub tuam txhab tsim cov hose clamp siv cov hlau tsis xeb ferritic ua lwm txoj hauv kev rau cov hlau tsis muaj zog lossis ua lwm txoj hauv kev pheej yig rau cov hlau tsis xeb austenitic. Vim muaj chromium nyob rau hauv cov hlau sib xyaw, cov hlau ferritic (siv rau hauv qib W2 thiab W3, hauv 400-qib series) tsis tas yuav ua lwm yam ntxiv los txhim kho kev tiv thaiv corrosion. Txawm li cas los xij, qhov tsis muaj lossis cov ntsiab lus nickel qis ntawm cov hlau no txhais tau tias nws cov khoom muaj ntau txoj hauv kev qis dua cov hlau tsis xeb austenitic.

Cov hlau tsis xeb Austenitic muaj qib siab tshaj plaws ntawm kev tiv taus xeb rau txhua hom kev xeb, suav nrog cov kua qaub, muaj qhov kub ua haujlwm dav tshaj plaws, thiab tsis yog hlau nplaum. Feem ntau 304 thiab 316 qib ntawm cov hlau tsis xeb clips muaj; ob qho tib si cov ntaub ntawv no siv tau rau kev siv hauv dej hiav txwv thiab Lloyd's Register kev pom zoo, thaum cov qib ferritic tsis tuaj yeem siv tau. Cov qib no kuj tseem siv tau rau hauv kev lag luam khoom noj thiab dej haus, qhov twg cov kua qaub xws li acetic, citric, malic, lactic thiab tartaric acids yuav tsis tso cai siv cov hlau ferritic.