Zambiri za Ductile Iron Pipe
Mapaipi a Iron ndi mapaipi opangidwa ndi chitsulo cha ductile. Chitsulo chachitsulo ndi chitsulo cha graphite cha spheroidized. Kudalirika kwakukulu kwa chitsulo cha ductile makamaka chifukwa cha kulimba kwake, kulimba, komanso mphamvu komanso kukana dzimbiri. Mapaipi achitsulo amagwiritsidwa ntchito pogawa madzi amchere komanso kupopera matope, zimbudzi ndi mankhwala opangira. Mapaipi achitsulowa ndi chitukuko chachindunji cha mapaipi achitsulo akale omwe tsopano atsala pang'ono kusintha. Kudalirika kwakukulu kwa mapaipi achitsulo a ductile ndi chifukwa cha mawonekedwe ake osiyanasiyana apamwamba. Mapaipi awa ndi omwe amafunidwa kwambiri mapaipi a ntchito zingapo.
Kufotokozera kwa Ductile Iron Pipes
| Dzina lazogulitsa | Chitsulo chachitsulo chokhazikika, Ductile Iron Pipe yokhala ndi Spigot & Socket, Chitoliro cha Iron Iron |
| Zofotokozera | ASTM A377 Ductile Iron, AASHTO M64 Cast Iron Culvert Mapaipi |
| Standard | ISO 2531, EN 545, EN598, GB13295, ASTM C151 |
| Mulingo wagiredi | C20, C25, C30, C40, C64, C50, C100 & Kalasi K7, K9 & K12 |
| Utali | 1-12 Mamita kapena monga lamulo la kasitomala |
| Makulidwe | DN 80 mm kuti DN 2000 mm |
| Njira Yophatikiza | T mtundu; Makina olumikizirana k mtundu; Zodziyimira pawokha |
| Kupaka Kwakunja | Red/Blue Epoxy kapena Black Bitumen, Zn & Zn-AI Coatings, Metallic Zinc (130 gm/m2 kapena 200 gm/m2 kapena 400 gm/m2 malinga ndi zofuna za kasitomala) potsatira miyezo yoyenera ya ISO, IS, BS EN kumaliza wosanjikiza wa Epoxy Coating / Bitumen Wakuda (makina osachepera 70 micron) malinga ndi zomwe kasitomala amafuna. |
| Kupaka Kwamkati | Simenti Lining of OPC/ SRC/ BFSC/ HAC Simenti zomangira matope monga pakufunika ndi wamba Portland Cement ndi Sulphate Resisting Cement mogwirizana ndi zoyenera IS, ISO, BS EN miyezo. |
| Kupaka | Utsi wachitsulo wa zinki wokhala ndi zokutira za Bituminous (Kunja) matope a simenti (Mkati). |
| Kugwiritsa ntchito | Ductile cast iron Pipe imagwiritsidwa ntchito kwambiri potengera madzi otayira, madzi akumwa komanso kuthirira. |
Magiredi Atatu Akuluakulu a Chitoliro Chachitsulo Choponyedwa
V-2 (kalasi 40) Gray Iron, V-3 (65-45-12) Ductile Iron, ndi V-4 (80-55-06) Ductile Iron. Amapereka mphamvu yabwino kwambiri yopondereza komanso kugwetsa kwamphamvu kwambiri.
V-2 (kalasi 40) Gray Iron, ASTM B48:
Gululi lili ndi mphamvu zolimba kwambiri za 40,000 PSI yokhala ndi mphamvu yopondereza ya 150,000 PSI. Kuuma kwake kumachokera ku 187 - 269 BHN. V-2 ndiyoyenera kuvala mowongoka ndipo ili ndi mphamvu zapamwamba kwambiri, kulimba, kukana kuvala komanso kuyankha kwa kutentha kwachitsulo chotuwa chosasunthika. Imagwiritsidwa ntchito kwambiri pakubereka komanso kugwiritsa ntchito bushing mumakampani opanga ma hydraulics.
V-3 (65-45-12) Ductile Iron, ASTM A536:
Kalasiyi ili ndi mphamvu zolimba za 65,000 PSI, zokolola za 45,000 PSI, ndi 12% elongation. Kuuma kumayambira 131-220 BHN. Kapangidwe kake kabwino ka ferritic kumapangitsa V-3 kukhala makina osavuta kwambiri pamagulu atatu achitsulo ndikupangitsa kuti ikhale imodzi mwamagiredi apamwamba kwambiri azinthu zina zachitsulo; makamaka kuphatikiza mulingo woyenera kwambiri, kutopa, madutsidwe magetsi ndi maginito permeability katundu. Ductile Iron, makamaka mapaipi, amagwiritsidwa ntchito makamaka popanga madzi ndi zimbudzi. Chitsulo ichi chimapezekanso muzinthu zamagalimoto ndi ntchito zamafakitale.
V-4 (80-55-06) Ductile Iron, ASTM A536:
Kalasiyi ili ndi mphamvu zolimba za 80,000 PSI, zokolola za 55,000 PSI ndi kutalika kwa 6%. Ndilo mphamvu yapamwamba kwambiri yamagulu atatu, monga momwe amachitira. Gululi litha kutenthedwa mpaka 100,000 PSI mphamvu yolimba. Ili ndi 10-15% yotsika machiniability mlingo kuposa V-3 chifukwa cha mawonekedwe ake pearlitic. Nthawi zambiri amasankhidwa pamene zitsulo zakuthupi zimafunika.
Mapaipi a DI ndiabwino kuposa mapaipi achitsulo / PVC / HDPE
• DI Mapaipi amapulumutsanso ndalama zogwirira ntchito m'njira zingapo kuphatikiza ndalama zopopera, mtengo wapampopi, komanso kuwonongeka komwe kungachitike kuchokera ku zomangamanga zina, zomwe zimapangitsa kulephera komanso mtengo wokonzanso nthawi zonse.
• Mtengo wa Lifecycle wa DI mapaipi ndi imodzi mwazabwino zake zazikulu. Popeza imakhala kwa mibadwomibadwo, ndi yotsika mtengo kuti igwire ntchito, ndipo imayikidwa mosavuta komanso yogwiritsidwa ntchito moyenera, mtengo wake wautali kapena wamoyo ndi wotsika mosavuta kuposa zinthu zina zilizonse.
• Chitoliro chachitsulo pachokha ndi 100% zinthu zobwezerezedwanso.
• Ndi mphamvu zokwanira kupirira mikhalidwe yovuta kwambiri, kuchokera ku ntchito zoponderezedwa kwambiri, kupita ku nthaka yolemera ndi katundu wa magalimoto, ku nthaka yosakhazikika.
• Kuyika ndi kosavuta komanso kotetezeka kwa ogwira ntchito omwe amatha kudula ndi kugwiritsira ntchito Ductile Iron Pipe pamalopo.
• Chitsulo chachitsulo cha Ductile Iron Pipe chimatanthauza kuti chitolirocho chikhoza kukhala pansi pa nthaka ndi malo odziwika bwino a mapaipi.
•Mapaipi a DI amapereka mphamvu zolimba kwambiri kuposa chitsulo chocheperako ndikusunga kukana kwa dzimbiri kwachitsulo.
