Kev Txheeb Xyuas Txog Cov Kav Dej Hlau Ductile
Txij li thaum tsim cov yeeb nkab hlau ductile hauv xyoo 1940s, nws tau ntau tshaj 70 xyoo lawm. Nrog nws lub zog siab, kev ntev ntev, kev tiv thaiv corrosion, kev tiv thaiv kev poob siab, kev tsim kho yooj yim thiab ntau lwm yam zoo, cov yeeb nkab hlau ductile yog qhov kev xaiv zoo tshaj plaws hauv ntiaj teb niaj hnub no rau kev xa dej thiab roj kom muaj kev nyab xeeb. Cov hlau ductile, tseem hu ua cov hlau nodular lossis cov hlau graphite spheroidal, yog tus yam ntxwv los ntawm qhov muaj cov graphite spheroidal hauv cov castings.
Cov Lus Qhia Txog Cov Kav Hlau Ductile
| KhoomLub Npe | Cov Yeeb Nkab Hlau Uas Muaj Qhov Loj, DI Yeeb Nkab, Cov Yeeb Nkab Hlau Uas Ua Los Ntawm Yas, Cov Yeeb Nkab Hlau Nodular |
| Ntev | 1-12 Meters lossis raws li qhov yuav tsum tau ua ntawm cov neeg siv khoom |
| Loj | DN 80 hli mus rau DN 2000 hli |
| Qib | K9, K8, C40, C30, C25, thiab lwm yam. |
| Tus Qauv | ISO2531, EN545, EN598, GB, thiab lwm yam |
| Yeeb NkabJqhov tseem ceeb | Qhov sib koom ua ke (Tyton sib koom ua ke), K hom sib koom ua ke, qhov sib koom ua ke uas tsis tas yuav nias |
| Khoom siv | Hlau Cast Iron |
| Txheej Sab Hauv | a). Portland cement mortar lining |
| b). Cov cement mortar uas tiv taus sulfate | |
| c). Cov ntaub pua plag cement siab-Aluminium | |
| d). Fusion bonded epoxy txheej | |
| e). Cov kua pleev xim epoxy | |
| f). Xim dub bitumen | |
| Txheej Sab Nraud | a). zinc + bitumen (70microns) pleev xim |
| b). Fusion bonded epoxy txheej | |
| c). Zinc-aluminium alloy + kua epoxy pleev xim | |
| Daim Ntawv Thov | Qhov project dej, dej ntws tawm, dej phwj tuaj, dej ntws tsis zoo, dej ntws tsis zoo, thiab kav dej. |
Cov yam ntxwv ntawm Cov Kav Dej Hlau Ductile
Cov kav dej hlau ductile muaj ntau qhov loj ntawm 80 mm txog 2000 mm thiab tsim nyog rau kev xa dej haus thiab faib dej (raws li BS EN 545) thiab dej phwj (raws li BS EN 598). Cov kav dej hlau ductile yooj yim sib koom ua ke, tuaj yeem tso tau rau txhua qhov huab cua thiab feem ntau tsis tas yuav tsum tau xaiv qhov chaw rov qab. Nws qhov kev nyab xeeb siab thiab muaj peev xwm los pab txhawb kev txav mus los hauv av ua rau nws yog cov khoom siv kav dej zoo tshaj plaws rau ntau yam kev siv.
Cov Qib ntawm Cov Yeeb Nkab Hlau Uas Peb Muab Tau
Cov lus hauv qab no qhia txog txhua qib khoom siv hlau ductile rau txhua lub tebchaws.IYog koj yog neeg Asmeskas, ces koj xaiv tau 60-40-18, 65-45-12, 70-50-05 thiab lwm yam., yog koj yog neeg Australia, ces koj xaiv tau 400-12, 500-7, 600-3 thiab lwm yam.
| Lub teb chaws | Cov Khoom Siv Hlau Ductile | |||||||
| 1 | Tuam Tshoj | QT400-18 | QT450-10 | QT500-7 | QT600-3 | QT700-2 | QT800-2 | QT900-2 |
| 2 | Nyiv | FCD400 | FCD450 | FCD500 | FCD600 | FCD700 | FCD800 | — |
| 3 | Tebchaws Meskas | 60-40-18 | 65-45-12 | 70-50-05 | 80-60-03 | 100-70-03 | 120-90-02 | — |
| 4 | Lavxias teb sab | B Ч 40 | B Ч 45 | B Ч 50 | B Ч 60 | B Ч 70 | B Ч 80 | B Ч 100 |
| 5 | Lub teb chaws Yelemees | GGG40 | — | GGG50 | GGG60 | GGG70 | GGG80 | — |
| 6 | Ltalis | GS370-17 | GS400-12 | GS500-7 | GS600-2 | GS700-2 | GS800-2 | — |
| 7 | Fabkis | FGS370-17 | FGS400-12 | FGS500-7 | FGS600-2 | FGS700-2 | FGS800-2 | — |
| 8 | Askiv | 400/17 | 420/12 | 500/7 | 600/7 | 700/2 | 800/2 | 900/2 |
| 9 | Poland | ZS3817 | ZS4012 | ZS5002 | ZS6002 | ZS7002 | ZS8002 | ZS9002 |
| 10 | Is Nrias teb | SG370/17 | SG400/12 | SG500/7 | SG600/3 | SG700/2 | SG800/2 | — |
| 11 | Romania | — | — | — | — | FGN70-3 | — | — |
| 12 | Spain | FGE38-17 | FGE42-12 | FGE50-7 | FGE60-2 | FGE70-2 | FGE80-2 | — |
| 13 | Belgium | FNG38-17 | FNG42-12 | FNG50-7 | FNG60-2 | FNG70-2 | FNG80-2 | — |
| 14 | Australia | 400-12 | 400-12 | 500-7 | 600-3 | 700-2 | 800-2 | — |
| 15 | Sweden | 0717-02 | — | 0727-02 | 0732-03 | 0737-01 | 0864-03 | — |
| 16 | Hungary | GǒV38 | GǒV40 | GǒV50 | GǒV60 | GǒV70 | — | — |
| 17 | Bulgaria | 380-17 | 400-12 | 450-5, 500-2 | 600-2 | 700-2 | 800-2 | 900-2 |
| 18 | ISO | 400-18 | 450-10 | 500-7 | 600-3 | 700-2 | 800-2 | 900-2 |
| 19 | COPANT | — | FMNP45007 | FMNP55005 | FMNP65003 | FMNP70002 | — | — |
| 20 | Tuam Tshoj Taiwan | GRP400 | — | GRP500 | GRP600 | GRP700 | GRP800 | — |
| 21 | Holland | GN38 | GN42 | GN50 | GN60 | GN70 | — | — |
| 22 | Luxembourg | FNG38-17 | FNG42-12 | FNG50-7 | FNG60-2 | FNG70-2 | FNG80-2 | — |
| 23 | Austria | SG38 | SG42 | SG50 | SG60 | SG70 | — | — |
Cov Ntawv Thov Hlau Ductile
Cov hlau ductile muaj zog thiab ductility ntau dua li cov hlau grey. Cov yam ntxwv no tso cai rau nws siv tau zoo hauv ntau yam kev siv hauv kev lag luam, suav nrog cov yeeb nkab, cov khoom siv hauv tsheb, lub log, lub thawv iav, lub tsev twj tso kua mis, cov thav duab tshuab rau kev lag luam cua fais fab, thiab ntau ntxiv. Vim tias nws tsis tawg zoo li cov hlau grey, cov hlau ductile kuj muaj kev nyab xeeb siv rau hauv cov ntawv thov tiv thaiv kev cuam tshuam, xws li bollards.
