Isi nke ígwè ọkpọkọ
Ọ dị ihe karịrị afọ 70 kemgbe ihe mepụtara ducler ígwè na 1940s. N'inwe ike ya dị elu, ịdị elu dị elu, na-eguzogide ọgwụ, na-eguzogide oke egwu na ụwa ndị ọzọ dị n'ụwa taa maka ịkwaga mmiri na gas n'enweghị nsogbu. Iron ígwè, nke a na-akpọkwa ígwè ma ọ bụ Spetrodal eserese, na-egosipụta ya site na ọnụnọ nke eserese Speheridite na nke na-akpata ya.
Nkọwapụta nke nduku ígwè
| Ihe emeputara ohuruAha | Puclele ígwè, DI FIP, nke ọma, Nkedo nkedo |
| Ogologo | 1-12 mita ma ọ bụ dị ka ihe ndị ahịa chọrọ |
| Saiz | DN 80 mm ka dn 2000 mm |
| Greedi | K9, K8, C40, C30, C25, wdg. |
| Standadi | ISO2531, EN545, En598, GB, wdg |
| PaipuJoint | Nkwonkwo na nkwonkwo (nkwonkwo Tyton), k pịnye nkwonkwo, nkwonkwo onwe ya |
| Mgwooru | Iron nke ductile |
| Igwe mkpuchi | a). Portland ciment |
| b). Sulphate na-eguzogide ọgwụ mgbochi | |
| c). Igwe cimeminium dị elu | |
| d). Ngwakọta nke a na-eme achịcha | |
| e). Eserese epoxy | |
| f). Black Bitemen | |
| Ibelata mpụga | a). Zinc + Bitumen (70micons) eserese |
| b). Ngwakọta nke a na-eme achịcha | |
| c). Zinc-aluminom + mmiri mmiri epoxy sere | |
| Akwukwo icho oru | Projectgbọ mmiri a na-enye, mmiri na-enye mmiri, ịkwa mmiri, ogbugba mmiri n'ubi. |
Mkpụrụ edemede nke ndị na-akụ ígwè
A na-enweta ọkpọkọ ígwè dị na mpaghara dị iche iche site na 80 mm ruo 2000 mm na nkesa na-ekesa (na BS en 598). Enwere ike ịtọ ọkpọkọ ígwè dị mfe na nkwonkwo ihu igwe, enwere ike ịtọ ya n'ọnọdụ ihu igwe niile ma na-abụkarị mkpa ọ dị mma. Ihe dị elu na ikike ya na ikike ịnabata mmegharị nke ọma na-eme ka ọ dị ezigbo mma ọkpọkọ maka ọtụtụ ngwa.
Akara nke pickile iron frio anyị nwere ike inye
Tebụl na-eso ya na-egosi akara mmiri nke na-eme ihe niile na-eme ka afọ niile.If are ị bụ American, mgbe ahụ ị nwere ike ịhọrọ 60-40-18, 65-45-12, 70-0-05 wdg, ma ọ bụrụ na ị nwere ike ịhọrọ 400-12, 500-7, 600-3, 600-3, 600-3, 600-3, 600-3 wdg.
| Obodo | Akara mmiri na-eme ihe | |||||||
| 1 | Chaina | 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 | Russisia | B ч 40 | B ч 45 | B ч 50 | B ч 60 | Bч 70 | B ч 80 | B ч 100 |
| 5 | Kweisi | GGG40 | - - | Ggg50 | Ggg60 | Ggg70 | GGG80 | - - |
| 6 | Isi | Gs370-17 | Gs400-12 | Gs500-7 | Gs600-2 | Gs700-2 | Gs800-2 | - - |
| 7 | Ihe isi France | Fgs370-17 | Fgs400-12 | Fgs500-7 | Fgs600-2 | Fgs700-2 | 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 | India | 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 | Isitumadi | Fng38-17 | FNG42-12 | Fng50-7 | Fng60-2 | Fng70-2 | Fng80-2 | - - |
| 14 | Ostrelia | 400-12 | 400-12 | 500-7 | 600-3 | 700-2 | 800-2 | - - |
| 15 | Swen | 0717-02 | - - | 0727-02 | 0732-03 | 0737-01 | 0864-03 | - - |
| 16 | Huru Hungary | Gǒv38 | Gǒv40 | GǒV50 | Gǒv60 | Gǒv70 | - - | - - |
| 17 | Nwa-ere ahia | 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 | Ebekota | - - | Fmnp45007 | Fmnp55005 | Fmnp65003 | Fmnp70002 | - - | - - |
| 20 | China 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 | Sog60 | Sg70 | - - | - - |
Ngwa kpụ ọkụ n'ọnụ
Iron ígwè nwere ike na nkwarụ karịa isi awọ. Ngwongwo ndị ahụ kwere ka eji ya mee ihe n'ụzọ dị iche iche na ngwa ọrụ dị iche iche, gụnyere ọkpọkọ, ihe eji eme ya, ite igwe maka ụlọ ọrụ ọkụ na-enweghị ikuku, na ọtụtụ ndị ọzọ. N'ihi na ọ naghị agbaji dị ka isi awọ, iron na-adịghị mma iji ngwa nchebe, dị ka Bollards.
