K7, K8, thiab K9 feem kev txiav xaim hluav taws xob phab ntsa tuab cov qib, ntau dua cov kev xav tau zoo dua qub. Thaum sib txawv hauv cov kab sib txawv hauv cov qib no, xws li cov kev hloov pauv tsis yog txiav txim siab los ntawm cov txheej txheem thickness, cov khoom muaj pes tsawg leeg, thiab kev tiv thaiv corrosion tiv thaiv kev kho mob.
Raws li qhia hauv daim duab, zas hlau kav hlau muaj plaub txheej: ob txheej ntawm zinc txheej ntxiv rau sab toxos, ib txheej caming rau sab hauv kev tiv thaiv corrosion.
Siab tiv tsis tau
K9
K9 {-} qib qib dide hlau kav dej zas xim, muaj peev xwm ntawm cov khoom siv hluav taws xob ntau tshaj 1.6 MPa.
K8
K8-qib cov kav dej tuaj yeem tiv thaiv tau pipeline pressures hauv qab no 1.25 MPa.
K7
K7-qib cov kav dej tuaj yeem tiv taus cov raj xa dej hauv qab no 1.0 MPA.
Corrosion Kuj
Lub corrosion tsis kam ntawm corros hlau kav hlau kav hlau los ntawm anti - corrosion kev kho thov rau ob qho chaw sab hauv thiab sab nraud. Cov txheej txheem hauv sab hauv muaj xws li cov CEMENT / ALUMINS), thaum txheej hloov sab nraud), thaum cov txheej txheem sab nraud), thaum cov txheej txheem sab nraud ntxiv (asphalt pleev xim / epoxy resin xim). Cov kev ntsuas no txhim kho cov yeeb nkab lub corrosion tsis kam, txo cov kev sib chwv ntawm dej / av ib puag ncig ntawm cov raj raj xa hluav taws xob.
Qib thiab Corrosion Kuj
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Qib thiab Corrosion Kuj
Txawm hais tias siab dua -} qib qib tso rau hauv cov av tuab, qhov no tsis ncaj qha rau cov corrosion tsis kam. Corrosion tsis kam nyob ntawm tsis yog rau ntawm cov khoom siv yeeb nkab siv tau zoo tab sis kuj muaj ntau yam xws li kev ua kom xeb, lub raj xa dej ua haujlwm, thiab kev ua haujlwm saib xyuas. Yog li ntawd, thaum xaiv cov kav hlau zas, cov qib tsim nyog thiab anti {4 4} Corrosion kev ntsuas nyob rau hauv cov kos duab thiab qhov kev teeb tsa tiag tiag ntawm lub xaib.
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Zas Hlau Yeeb Nkab
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Hauv totle
Lub corrosion tsis kam ntawm corrile kav hlau tsis tsuas yog txiav txim siab los ntawm lawv qib, anti {{{{corrosion kho, thiab ib puag ncig kev khiav haujlwm. Thaum xaiv cov kav hlau zas, kev ntsuam xyuas dav dav raws li cov qauv tsim nyog, cov kev xav tau ntawm tes haujlwm, thiab ib puag ncig cov mob tseem ceeb.
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