01.Basic Knowledge for Purchasing Ductile Iron Pipes
Muaj peb qib uas nquag siv ntawm K-qib cov kav hlau kav: K7, K8, thiab K9 .
Peb qib ntawm cov kav hlau kav hlau muaj cov qauv sib txawv ntawm cov phab ntsa tuab, qhov hnyav, lub peev xwm siab, thiab lwm yam, thiab lawv cov nqi kuj txawv (K7<><>
Vim nws qhov kev ua tau zoo tshaj plaws, lub teb chaws tus qauv K9 qib ductile hlau yeeb nkab tau pom zoo rau cov haujlwm uas yuav tsum tau nruj.
Qee cov tuam txhab lag luam me lossis cov neeg xa khoom tuaj yeem muag cov khoom lag luam tsis zoo raws li cov khoom lag luam zoo, thiab lawv cov khoom zoo yuav tsis ua raws li cov qauv. Koj yuav tsum ceev faj thaum yuav khoom.
02.Yuav ua li cas koj txiav txim siab yog hais tias lub ductile hlau yeeb nkab koj yuavyog cov khoom tsim nyog?
Kev tshuaj xyuas qhov zoo
Xyuas kom meej tias cov cim ntawm cov yeeb nkab yog qhov tseeb thiab ua tiav.Qhov no suav nrog cov ntawv sau rau hauv lub qhov (socket), kab spigot, thiab cov cim ntawm cov yeeb nkab lub cev (lub tuam txhab lub npe / cov cim lag luam, cov qauv siv tau, qib khoom, cov khoom lag luam tshwj xeeb, cov khoom lag luam tus lej, sab nraud tiv thaiv- cov cim kev xeb, thiab lwm yam).
Xyuas cov yeeb nkab lub cev rau cov xuab zeb qhov, cua qhov, los yog tawg; ntsuas lub ovality, ntev, txoj kab uas hla, phab ntsa thickness, thiab lwm qhov ntev ntawm cov yeeb nkab hlau kom pom tias lawv ua tau raws li cov qauv.
Cov phab ntsa sab hauv ntawm cov yeeb nkab yuav tsum zoo ib yam thiab du, tsis muaj kab nrib pleb los yog pom tseeb tsis xws luag xws li tev ntawm cov txheej tiv thaiv -corrosion.
Kev ntsuam xyuas ntawm qhov zoo
Tshawb xyuas cov khoom lag luam soj ntsuam cov ntawv ceeb toom thiab daim ntawv pov thawj ntawm kev ua raws li kom ntseeg tau tias tag nrho cov ntsuas kev ua tau zoo nyob rau hauv qhov kev lees paub.
Nkag siab cov txheej txheem los ntawm kev npaj cov hlau molten mus rau cov khoom siv kho tshuab, cov qauv metallographic, thiab kev sim hydraulic kom ntseeg tau tias txhua kauj ruam ua tau raws li cov qauv.
Xaiv cov chaw tsim khoom nrog cov kev tsim nyog tiav, muaj peev xwm tsim tau zoo, thiab lub koob npe zoo los xyuas kom meej cov khoom zoo thiab cov khoom ruaj khov.
Thaum yuav cov kav hlau kav hlau, nws raug nquahu kom xaiv cov khoom lag luam los ntawm cov tuam txhab muaj npe nrov thiab thov cov ntaub ntawv soj ntsuam zoo. Koj tuaj yeem xa mus rau cov txheej txheem hais los saum toj no rau kev tshuaj ntsuam xyuas cov khoom lag luam kom ntseeg tau tias koj yuav khoom siab -cov kav hlau zoo. Yog tias ua tau, koj tuaj yeem muaj lub chaw kuaj xyuas kev tshaj lij ua qhov kev xeem kom ntxaws ntxiv.