Lub Valve yas yog dav siv hom valve, nws muaj qhov zoo ntawm corrosion ntawm corrosion ntawm corrosion ntawm corrosion ntawm corrosion ntawm corrosion, thiab lwm yam. Cov hauv qab no yog kev txhim kho keeb kwm ntawm cov yas qub.
Thaum xyoo 1950, nrog kev txhim kho kev tsim kho nrawm nrawm, qhov kev thov rau cov roj av maj nce ntxiv. Nyob rau lub sijhawm no, cov ntaub ntawv yas tau siv dav hauv kev ua lag luam, yog li qee cov engineers tau pib kawm yuav ua li cas siv cov ntaub ntawv yas hauv kev ua cov li qub. Thaum Ntxov YAUL COLICAL tau tsuas yog tsim kev siv polyvinyl chloride (pvc) uas muaj zoo corroside, tab sis nws cov khoom siv zoo thiab tsuas yog ua haujlwm qis thiab tsawg dua kev kub ib puag ncig.
Nyob rau hauv lub xyoo 1960, nrog kev txhim kho kev txuas ntxiv ntawm cov tshuab ziab khaub ncaws, polytropylene (PTFE) thiab lwm yam ntaub ntawv tau siv hauv kev tsim cov khoom yas. Cov ntaub ntawv no muaj cov khoom siv zoo dua thiab corrosion tsis kam, thiab tuaj yeem hloov kho cov ntau ntawm cov chaw ua haujlwm.
Nyob rau xyoo 1970, nrog kev loj hlob ntawm cov yas yas ua haujlwm tau qhia, xws li cov khoom siv roj yas tshiab, thiab cov khoom siv roj av zoo dua, thiab muaj peev xwm Haum rau ntau qhov chaw ua haujlwm.
Thaum pib ntawm lub xyoo pua 21st, nrog rau kev tiv thaiv kev tiv thaiv ib puag ncig, cov kev cai rau cov li qub yog ua kom siab dua thiab siab dua. Nyob rau lub sijhawm no, qee cov khoom siv yas tshiab tau siv hauv kev tsim cov li cas, xws li Polyetketone (Peek), polyimide (PI) thiab lwm yam khoom siv cov khoom yas ua haujlwm. Cov ntaub ntawv no muaj cov khoom zoo dua thiab corrosion tsis kam, thiab tuaj yeem ua tau raws li qhov chaw ua haujlwm ntxiv.
Hauv ntej, nrog rau kev txhim kho kev lag luam tshuaj thiab kev tsim kho cov yas ua haujlwm tau ntsib kev txhim kho cov khoom siv ua kom zoo, txuas ntxiv txhim kho lawv cov khoom siv tshuab corrosion, txuas ntxiv cov khoom siv thiab cov khoom siv ntawm Daim ntawv thov, ua ib qho tseem ceeb thiab tsis tseem ceeb rau cov khoom siv rau tshuaj, petrochemical thiab kev tiv thaiv ib puag ncig kev lag luam.
Lub sij hawm ncua: Mar-02-2023