Dulmarka Tubooyinka Birta Ductile
In ka badan 70 sano ayaa laga joogaa tan iyo markii la alifay 1940-meeyadii ee dhuumaha birta ductile. Iyada oo ay xoogga sare, elongation sare, iska caabin daxalka, iska caabin shoogga, dhismo fudud iyo sifooyin kale oo badan oo ganaax, tuubada birta ah ee ductile waa doorashada ugu fiican ee maanta dunida ee gudbinta biyaha iyo gaaska si ammaan ah. Birta xuubka, oo sidoo kale loo yaqaan birta nodular ama birta graphite spheroidal, waxaa lagu gartaa joogitaanka garaafyada spheroidal ee kabka natiijada.
Tilmaamaha Tubooyinka Birta Ductile
| AlaabtaMagaca | Dhuumaha Birta Ductile, Dhuumaha DI, Tuubbooyinka shubka birta, Dhuumaha Cast Birta Nodular |
| Dhererka | 1-12 mitir ama sida looga baahan yahay macaamilka |
| Cabbirka | DN 80 mm ilaa DN 2000 mm |
| Darajo | K9, K8, C40, C30, C25, iwm. |
| Heerka | ISO2531, EN545, EN598GB, iwm |
| DhuumahaJsaliid | Isku-xidhka riix-ku-jirka (wada-jirka Tyton), isku-dhafka nooca K, wadajirka is-xakamaynta |
| Qalab | Ductile Cast Iron |
| Dahaarka Gudaha | a) Dahaarka hoobiyaha sibidhka Portland |
| b) Dahaarka hoobiyaha sibidhka ee Sulfate Resistant | |
| c) Dahaarka hoobiyaha sibidhka-Aluminium-sare | |
| d) Dahaarka epoxy-ga ku xidhan ee Fusion | |
| e). Rinjiyeynta epoxy dareeraha ah | |
| f) rinjiyeynta bitumen madow | |
| Dahaarka Dibadda | a) zinc+ bitumen (70microns) rinjiyeyn |
| b) Dahaarka epoxy-ga ku xidhan ee Fusion | |
| c) Zinc-aluminium alloy + rinjiyeynta epoxy dareeraha ah | |
| Codsiga | Mashruuca biyo gelinta, qulqulka, bulaacada, waraabka, dhuumaha biyaha. |
Astaamaha Tubooyinka Birta Ductile
Tuubooyinka birta ah ee birta ah ayaa lagu heli karaa dhexroor kala duwan oo u dhexeeya 80 mm ilaa 2000 mm waxayna ku habboon yihiin gudbinta biyaha la cabbi karo iyo qaybinta labadaba (sida waafaqsan BS EN 545) iyo bulaacada (sida waafaqsan BS EN 598). Tuubooyinka birta ah ee birta ah way fududahay in la isku daro, waxaa la dhigi karaa dhammaan xaaladaha cimilada iyo inta badan iyada oo aan loo baahnayn dib-u-soo-bax la doortay. Qodobkeeda badbaadada sare iyo awoodda lagu daboolayo dhaqdhaqaaqa dhulka ayaa ka dhigaya walxaha dhuumaha ee ugu habboon ee codsiyada ballaaran.
Darajooyinka Dhuumaha Birta Birta ah ee aan ku bixin karno
Jadwalka soo socdaa waxa uu muujinayaa dhammaan darajooyinka walxaha birta ee dal kasta.IHaddii aad tahay Ameerika, markaa waxaad dooran kartaa 60-40-18, 65-45-12, 70-50-05 iwm., haddii aad ka timid Australia, markaa waxaad dooran kartaa 400-12, 500-7, 600-3 iwm.
| Dalka | Dhibcaha Qalabka Birta Ductile | |||||||
| 1 | Shiinaha | QT400-18 | QT450-10 | QT500-7 | QT600-3 | QT700-2 | QT800-2 | QT900-2 |
| 2 | Japan | FCD400 | FCD450 | FCD500 | FCD600 | FCD700 | FCD800 | - |
| 3 | USA | 60-40-18 | 65-45-12 | 70-50-05 | 80-60-03 | 100-70-03 | 120-90-02 | - |
| 4 | Ruushka | B Ч 40 | B Ч 45 | B Ч 50 | B Ч 60 | B Ч 70 | B Ч 80 | B Ч 100 |
| 5 | Jarmalka | GGG40 | - | GGG50 | GGG60 | GGG70 | GGG80 | - |
| 6 | Talyaaniga | GS370-17 | GS400-12 | GS500-7 | GS600-2 | GS700-2 | GS800-2 | - |
| 7 | Faransiiska | DFS370-17 | FGS400-12 | DFS500-7 | DFS600-2 | DFS700-2 | FGS800-2 | - |
| 8 | England | 400/17 | 420/12 | 500/7 | 600/7 | 700/2 | 800/2 | 900/2 |
| 9 | Poland | ZS3817 | ZS4012 | ZS5002 | ZS6002 | ZS7002 | ZS8002 | ZS9002 |
| 10 | Hindiya | SG370/17 | SG400/12 | SG500/7 | SG600/3 | SG700/2 | SG800/2 | - |
| 11 | Romania | - | - | - | - | FGN70-3 | - | - |
| 12 | Isbayn | 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 | Iswiidhan | 0717-02 | - | 0727-02 | 0732-03 | 0737-01 | 0864-03 | - |
| 16 | Hungary | GǒV38 | GǒV40 | GǒV50 | GǒV60 | GǒV70 | - | - |
| 17 | Bulgaariya | 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 | KOOBAN | - | FMNP45007 | FMNP55005 | FMNP65003 | FMNP70002 | - | - |
| 20 | Shiinaha 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 | Awstariya | SG38 | SG42 | SG50 | SG60 | SG70 | - | - |
Codsiyada Birta Ductile
Birta xuubka-mareenka ahi waxay leedahay awood iyo ductility ka weyn birta cawl. Guryahaasi waxay u oggolaanayaan in si wax ku ool ah loogu isticmaalo noocyo kala duwan oo codsiyo warshadeed ah, oo ay ku jiraan tuubooyinka, qaybaha baabuurta, giraangiraha, sanduuqyada qalabka, guryaha bamka, muraayadaha mishiinka ee warshadaha tamarta dabaysha, iyo qaar kaloo badan. Sababtoo ah ma jabna sida birta cawl, birta ductile sidoo kale waa ammaan in loo isticmaalo codsiyada ilaalinta saamaynta, sida boodhadhka.
