LSAW (Longitudinal biyu submerge baka walda)carbon karfe bututunau'i ne naSAW tubeda aka yi da faranti na ƙarfe waɗanda ke da zafi birgima ta hanyar fasahar ƙira ta JCOE ko UOE.Fasaha ta JCOE tana wakiltar tsarin siffa da ƙira da aka haɗa yayin masana'anta da walƙiya ta ciki da waje da faɗaɗa sanyi da za'ayi bayan walda.
Idan aka kwatanta da UOELSAW karfe bututu, LSAW bututu masana'antun a kasar Sin na iya samar da karin girma dabam kamar haka: OD 406 mm - 1620 mm, kauri 6.35 mm - 60 mm, bututu tsawon 2 m - 18 m tare daLSAW tubesamun fifiko.
- LSAW karfe bututu masana'antu tsari
LSAWbabban diamita karfe bututuAn bayyana tsarin masana'antu a cikin matakan da ke ƙasa:
1. Plate Probe: Ana amfani da wannan don kera manyan diamita LSAW haɗin gwiwa daidai bayan ya shiga layin samarwa wanda shine farkon cikakken gwajin ultrasonic.
2. Milling: Na'urar da ake amfani da ita don niƙa tana yin wannan aikin ta hanyar faranti mai kaifi biyu don saduwa da buƙatun faɗin farantin da kuma sassan da ke daidai da siffar da digiri.
3. Gefen da aka riga aka lankwasa: Ana samun wannan gefen ta hanyar amfani da na'urar riga-kafi a kan gefen farantin riga-kafi.Gefen farantin yana buƙatar biyan buƙatun curvature.
4. Samar da: Bayan matakin farko na lankwasawa, a farkon rabin na JCO gyare-gyaren na'ura, bayan da aka hatimi karfe, an danna shi a cikin siffar "J" yayin da sauran rabi na wannan farantin karfe yana lanƙwasa kuma ana danna shi. zuwa siffar "C", sannan budewar karshe ta samar da siffar "O".
5. Pre-welding: Ana yin bututun karfen da aka yi masa waldadi ya zama madaidaiciya bayan an yi shi sannan a yi amfani da kabu mai walda mai (MAG) don ci gaba da walda.
6. Ciki weld: Ana yin wannan ne da tandem Multi-wire submerged arc waldi (kimanin waya huɗu) a ɓangaren ciki na madaidaiciyar kabu mai waldadden bututun ƙarfe.
7. Waje Weld: A waje weld ne tandem Multi-waya submerged baka waldi a waje na LSAW karfe bututu waldi.
8. Ultrasonic Testing: A waje da kuma ciki na madaidaiciyar kabu welded karfe bututu da kuma bangarorin biyu na tushe abu suna welded tare da 100% dubawa.
9. Binciken X-ray: Ana gudanar da duban gidan talabijin na masana'antu na X-ray a ciki da waje ta amfani da tsarin sarrafa hoto don tabbatar da ganewar ganewa.
10. Fadada: Wannan shi ne don cika submerged baka waldi da madaidaiciya kabu karfe bututu tsawon rami diamita don inganta karfe tube ta size daidaici da kuma inganta rarraba danniya a cikin karfe tube.
11. Gwajin hydraulic: Ana yin wannan akan injin gwajin hydraulic don karfe bayan fadada gwajin tushen don tabbatar da bututun ƙarfe ya dace da daidaitattun buƙatun tare da injin yana da rikodin rikodi ta atomatik da damar ajiya.
12. Chamfering: Wannan ya haɗa da binciken da aka yi a kan bututun ƙarfe a ƙarshen dukan tsari.
Lokacin aikawa: Nuwamba-14-2023