Cov kav dej hlau tau dhau los ua lub hauv paus hauv kev tsim kho tshiab niaj hnub, tshwj xeeb hauv kev faib dej thiab kev tswj dej khib nyiab. Paub txog lawv lub zog thiab ua haujlwm ntev, cov kav dej no tau tsim los ua kom tau raws li ntau yam qauv, suav nrog ASTM A536 specification, uas qhia txog qhov yuav tsum tau ua rau cov khoom siv hlau yeeb nkab. Ntawm cov qib sib txawv muaj, K9 qib ductile hlau kav yog qhov tshwj xeeb tshaj yog tsim nyog rau lawv cov khoom siv kho kom zoo, ua rau lawv tsim nyog rau kev siv siab. DN800 ductile hlau yeeb nkab, nrog lub nominal txoj kab uas hla ntawm 800 millimeters, yog ib tug nrov kev xaiv rau loj-scale tej yaam num, muab ib tug txhim khu kev qha tshuaj rau thauj dej thiab lwm yam kua.
Daim ntawv thov ntawm cov kav hlau kav hlau yog loj heev, xws li los ntawm cov kav dej hauv nroog mus rau cov ntawv thov kev lag luam. Lawv tiv taus corrosion thiab muaj peev xwm tiv taus siab ua rau lawv zoo tagnrho rau ob qho tib si saum av thiab hauv av. Tsis tas li ntawd, cov kav hlau kav hlau yog feem ntau siv hauv kev tiv thaiv hluav taws, qhov kev ntseeg siab yog qhov tseem ceeb. Kev siv ntau yam ntawm cov kav dej no tso cai rau lawv siv rau ntau qhov chaw, suav nrog thaj chaw hauv nroog, chaw nyob deb nroog, thiab txawm tias nyuaj. Raws li cov nroog txuas ntxiv loj hlob thiab kev xav tau kev tsim kho vaj tse ntxiv, qhov xav tau rau cov kav dej ruaj khov thiab muaj txiaj ntsig zoo xws li cov kav hlau kav hlau ua qhov tseem ceeb dua.
Thaum sib tham txog kev faib qib ntawm cov kav hlau kav hlau, nws yog ib qho tseem ceeb kom nkag siab qhov tseem ceeb ntawm cov qib sib txawv. Piv txwv li, K9 qib yog tsim los tswj cov kev ntsuas siab dua piv rau cov qib qis, ua rau nws tsim nyog rau cov ntawv thov uas muaj kev pheej hmoo ntawm kev kub ntxhov. Cov kev qhia tshwj xeeb ntawm cov kav hlau kav, nrog rau cov phab ntsa tuab thiab txoj kab uas hla, yog qhov tseem ceeb hauv kev txiav txim siab lawv cov kev ua tau zoo nyob rau hauv ntau yam mob. Kev sib raug zoo ntawm nominal txoj kab uas hla thiab siab kuj yog ib qho tseem ceeb xav txog; raws li txoj kab uas hla nce, qhov ntsuas siab yuav tsum tau ua tib zoo soj ntsuam kom ntseeg tau tias kev ncaj ncees ntawm qhov system. Qhov kev sib raug zoo no yog qhov tshwj xeeb tshaj yog rau cov kav dej loj, xws li DN800 cov yeeb nkab hlau, uas yuav tsum tau tsim los tswj cov hydraulic tseem ceeb.
Raws li qhov kev thov thoob ntiaj teb rau cov kav hlau txuas txuas ntxiv nce ntxiv, cov tuam txhab xws li Jindalai Steel Company yog qhov ua ntej ntawm kev tsim kho tshiab thiab tsim khoom. Nrog rau kev cog lus rau kev ua tau zoo thiab kev ruaj khov, Jindalai Steel Company tau tsim nws tus kheej ua tus thawj coj hauv kev tsim cov kav dej hlau, ua raws li cov qauv thoob ntiaj teb thiab cov kev coj ua zoo tshaj plaws. Lub tuam txhab tsom mus rau kev tshawb fawb thiab kev tsim kho kom ntseeg tau tias lawv cov khoom ua tau raws li cov kev xav tau ntawm kev lag luam, thaum tseem hais txog kev txhawj xeeb ntawm ib puag ncig. Raws li kev tsim kho vaj tse thoob ntiaj teb tau nce qhov tseem ceeb ntawm kev ua haujlwm ntev thiab ua haujlwm tau zoo, lub luag haujlwm ntawm cov kav dej hlau, tshwj xeeb tshaj yog cov uas ua tau raws li A536 tus qauv thiab qib K9 cov lus qhia tshwj xeeb, yuav tsis ntseeg tias tseem ceeb hauv kev txhim kho lub neej yav tom ntej ntawm kev tswj dej thiab kev faib khoom.
Hauv kev xaus, cov kav hlau kav hlau, tshwj xeeb tshaj yog cov uas tau muab cais raws li qib ASTM A536 thiab K9, yog cov khoom tseem ceeb hauv cov txheej txheem niaj hnub no. Lawv daim ntawv thov nthuav dav ntau yam kev lag luam, thiab nkag siab txog lawv cov kev qhia tshwj xeeb thiab cov yam ntxwv ua haujlwm yog qhov tseem ceeb rau cov engineers thiab cov thawj tswj haujlwm ib yam nkaus. Raws li cov tuam txhab xws li Jindalai Steel Company txuas ntxiv tsim kho tshiab thiab tsim cov kav hlau zoo nkauj, kev lag luam tuaj yeem cia siab tias yuav pom kev nce qib ntxiv uas txhim kho kev ntseeg tau thiab kev ua tau zoo ntawm cov txheej txheem tseem ceeb no.
Lub sij hawm xa tuaj: Plaub Hlis-24-2025