| BAYANI GA BUBUWAN KARFE LSAW | |
| 1. Girma | 1) OD: 406mm-1500mm |
| 2) Kaurin bango: 8mm-50mm | |
| 3)SCH20,SCH40,STD,XS,SCH80 | |
| 2. Standard: | ASTM A53, API 5L,EN10219,EN10210,ASTM A252ASTM A500 da dai sauransu |
| 3.Material | ASTM A53 Gr.B, API 5L Gr.B, X42, X52, X60, X70, X80, S235JR, S355J0H, da dai sauransu |
| 4. Amfani: | 1) low matsa lamba ruwa, ruwa, gas, man, line bututu |
| 2) tsarin bututu, bututu piling yi | |
| 3) shinge, kofa bututu | |
| 5.Shafi | 1) Barci 2) Baƙi Painted (varnish shafi) 3) Galvanized 4) Mai 5) PE, 3PE, FBE, comosion resistant shafi, Anti lalata shafi |
| 6.Technique | A tsaye welded karfe bututu |
| 7. Dubawa: | Tare da Gwajin Hyd Raulic, Eddy Current, RT, UT ko dubawa ta ɓangare na uku |
| 8.Bayarwa | Kwantena, Babban Jirgin ruwa. |
| 9. Game da ingancin Mu: | 1) Babu lalacewa, babu lankwasa 2) ba burrs ko kaifi gefuna kuma babu tarkace 3) Kyauta don mai & alama 4) Duk kaya za a iya bincika ta wani ɓangare na uku dubawa kafin kaya |
Aikin injiniya na Hong Kong
Injiniya Qatar
Injiniya na Turkiyya
Dogayen Ruwan Ruwa-Baka Welded(LSAW) bututu yana ɗaukar fasahar waldawar baka mai nutsewa, ta amfani da waldar filler, juzu'in kariyar barbashi da aka binne baka.
LSAW shine gajartawar turanci na nutsewar baka mai walda madaidaiciya bututun karfe.The samar da tsari na submerged baka welded madaidaiciya kabu karfe bututu hada da JCOE forming fasaha, nada forming submerged baka waldi fasaha da UOE forming fasaha.
Tsarin kera bututu mai tsayin daka-baki (LSAW) shine kamar haka:
Ultrasonic farantin bincike → gefen milling → pre-lankwasawa → forming → Pre-welding → Ciki walda → waje waldi → Ultrasonic dubawa → X-ray dubawa → Fadada → na'ura mai aiki da karfin ruwa gwajin →l.Chamfering → Ultrasonic dubawa → X-ray dubawa → Magnetic barbashi dubawa a tube karshen
| Bukatun tensile | |||
| Darasi na 1 | Darasi na 2 | Darasi na 3 | |
| Ƙarfin ɗamara, min, psi (MPa) | 50000 (345) | 60000 (415) | 66000 (455) |
| Ƙarfin samarwa ko samarwa, min, psi(MPa) | 30000 (205) | 35000 (240) | 45000 (310) |
| Mahimmin ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan kauri na bango % 6 in. (7.9 mm) ko fiye: Tsawaitawa a cikin 8 in. (203.2 mm), min, % Tsawaitawa a cikin 2 in. (50.8 mm), min, % | 18 30 | 14 25 | ... 20 |
| Don kaurin bango mara ƙima ƙasa da % 6 in. (7.9 mm), cirewa daga ƙaramin ƙaƙƙarfan elongation a cikin 2 in. (50.08 mm) ga kowane Vzi - in. (0.8 mm) raguwa a kauri bango mara kyau a ƙasa %6 in. (7.9 mm), a cikin maki kashi | 1.5A | 1.25A | 1.0 A... |
Gwajin Hydrostatic
Gwajin NDT(RT)
Gwajin NDT(UT).
Gwajin Lankwasawa-isasshen tsayin bututu zai tsaya yana lanƙwasa sanyi ta 90° a kusa da madaidaicin silinda.
Gwajin ƙwanƙwasa-ko da yake ba a buƙatar gwaji, bututu zai iya cika buƙatun gwaji na lallashi.
Gwajin hydrostatic-sai dai kamar yadda aka yarda, kowane tsayin bututu za a yi shi da gwajin hydro-static ba tare da yayyo ta bangon bututu ba.
Gwajin lantarki mara lalacewa-a madadin gwajin hydro-static , za a gwada cikakken jikin kowane bututu tare da gwajin lantarki mara lalacewa.inda aka yi gwajin wutar lantarki mara lalacewa, tsayin daka za a yi masa alama da haruffa”NDE”
Gwajin ultrasonic
Gwajin halin yanzu
Bare bututu, baƙar fata shafi (na musamman);
Dukansu sun ƙare tare da masu kare ƙarshen;
Ƙarshen ƙaƙƙarfan, ƙarshen bevel;
Alama.
| Waje Diamita | Diamita na waje na tarin bututu ba zai bambanta fiye da ± 1% daga ƙayyadadden diamita na waje ba. | ||
| Kaurin bango | Kaurin bango a kowane wuri ba zai zama fiye da 12.5% a ƙarƙashin ƙayyadadden kauri na bango ba. | ||
| Tsawon tsayi | Za a samar da tulin bututu a cikin tsayin bazuwar guda ɗaya, tsayin bazuwar ninki biyu, ko tsayi iri ɗaya kamar yadda aka ƙayyade a cikin odar siyayya, daidai da iyakoki masu zuwa: | Tsawon bazuwar guda ɗaya | 16 zuwa 25ft (4.88 zuwa 7.62mm), inci |
| Tsawon bazuwar sau biyu | Sama da 25ft (7.62m) tare da matsakaicin matsakaicin 35ft (10.67m) | ||
| Tsawon Uniform | tsayi kamar yadda aka ƙayyade tare da halattaccen bambancin ±1 in. | ||
| Nauyi | Kowane tsayin tulin bututu za a auna shi daban kuma nauyinsa ba zai bambanta fiye da 15% sama da 5% a ƙarƙashin nauyinsa ba, ana lissafta ta amfani da tsayinsa da nauyinsa kowane tsayin raka'a. | ||
