Dangane da hanyar masana'anta, ana iya raba bututun ƙarfe zuwa sassa biyu: bututun ƙarfe mara ƙarfi da bututun ƙarfe na walda.Daga cikinsu, bututun ƙarfe na ERW sune babban nau'in bututun ƙarfe na walda.A yau, muna magana ne game da nau'ikan bututun ƙarfe guda biyu da ake amfani da su azaman casing albarkatun ƙasa: bututun casing maras kyau da bututun casing na ERW.
Bututun casing mara kyau - bututun casing da aka yi da bututun ƙarfe mara nauyi;Bututun ƙarfe mara ƙarfi yana nufin bututun ƙarfe da aka yi ta hanyoyi huɗu na mirgina mai zafi, jujjuyawar sanyi, zane mai zafi da zane mai sanyi.Jikin bututun ba shi da walda.
Jikin ERW - ERW (Electric Resistant Weld) bututun karfe da aka yi da bututun waldadden lantarki yana nufin bututun da aka yi wa adon da aka yi da bututun juriya mai tsayi.Raw karfe zanen gado (coils) na lantarki-welded bututu da ake yi daga low-carbon micro-alloy karfe birgima ta TMCP (thermomechanical sarrafa tsari).
1. OD haƙuri sumul karfe bututu: ta yin amfani da zafi-birgima kafa tsari, sizing ne kammala a game da 8000 ° C.Abubuwan da ke tattare da kayan albarkatun kasa, yanayin sanyi, da yanayin sanyi na mirgina suna da tasiri mai girma akan diamita na waje, don haka yana da wuya a sarrafa daidaitaccen diamita na waje, kuma yanayin canzawa yana da girma.ERW karfe bututu: an kafa ta da sanyi lankwasawa, da diamita an rage da 0.6%.Tsarin zafin jiki yana da mahimmanci a dakin da zafin jiki, don haka ana sarrafa diamita na waje daidai, kuma yanayin canzawa yana da ƙananan, wanda ke taimakawa wajen kawar da kullun fata na fata;
.Juyawa mai zafi na gaba na iya kawar da rashin daidaituwa na kauri na bango, amma mafi yawan injunan zamani na iya daidaita shi a cikin ± 5 ~ 10% t.ERW karfe bututu: Lokacin amfani da zafi birgima a matsayin albarkatun kasa, da kauri haƙuri na zamani zafi mirgina za a iya sarrafa a cikin 0.05mm.
3. Rashin lahani a cikin m surface na workpiece amfani ga bayyanar da m karfe bututu ba za a iya shafe a cikin zafi mirgina tsari, amma za a iya goge kawai bayan ƙãre samfurin da aka kammala, da helical bugun jini bar bayan punching iya kawai partially shafe a cikin aiwatar da rage ganuwar.ERW karfe bututu da aka yi daga zafi birgima nada a matsayin albarkatun kasa.Ingancin saman nada daidai yake da ingancin bututun ƙarfe na ERW.Ingancin yanayin zafi mai birgima yana da sauƙin sarrafawa kuma yana da inganci.Don haka, ingancin bututun ƙarfe na ERW ya fi kyau fiye da na bututun ƙarfe mara nauyi.
4. Oval karfe bututu: ta yin amfani da zafi mirgina tsari.Abubuwan da ke tattare da albarkatun kasa na bututun ƙarfe, yanayin sanyi da yanayin sanyi na mirgina suna da tasiri mai yawa akan diamita na waje, don haka yana da wuya a sarrafa daidaitaccen diamita na waje, kuma yanayin haɓaka yana da girma.ERW karfe bututu: samar da sanyi lankwasawa, da waje diamita ne daidai sarrafawa, da kuma hawa da sauka kewayo ne karami.
5. Tensile Test The tensile Properties na sumul karfe bututu da ERW karfe bututu ne daidai da API matsayin, amma ƙarfin sumul karfe bututu ne kullum a babba iyaka, da kuma ductility ne a ƙananan iyaka.Akasin haka, ma'aunin ƙarfi na bututun ƙarfe na ERW yana cikin mafi kyawun yanayin, kuma ma'aunin filastik shine 33.3% mafi girma fiye da ma'auni.Dalilin shi ne cewa a matsayin albarkatun kasa don bututun ƙarfe na ERW, aikin na'ura mai zafi yana da garanti ta hanyar ƙwanƙwasa micro-alloy, tacewa daga cikin tanderun wuta, da sanyaya mai sarrafawa da mirgina;filastik.Daidaito mai ma'ana.
6. Kayan albarkatun kasa na ERW karfe bututu ne mai zafi-birgima nada, wanda yana da musamman high madaidaici a cikin mirgina tsari, wanda zai iya tabbatar da uniform yi na kowane bangare na nada.
7. Raw abu na ERW zafi birgima karfe nada bututu da hatsi size rungumi dabi'ar fadi da kuma lokacin farin ciki ci gaba da simintin billet, da surface lafiya- hatsi solidification Layer ne lokacin farin ciki, babu wani yanki na columnar lu'ulu'u, shrinkage porosity da pores, abun da ke ciki sabawa ne kananan., kuma tsarin yana da ƙima;sarrafawa a cikin tsarin mirgina na gaba Amfani da fasahar mirgina sanyi kuma yana tabbatar da girman hatsi na albarkatun ƙasa.
8. Gwajin juriya na zamewa na bututun ƙarfe na ERW yana da alaƙa da halaye na albarkatun ƙasa da tsarin masana'anta na bututu.Daidaitawar kaurin bango da ovality sun fi bututun ƙarfe maras kyau, wanda shine babban dalilin da ya sa juriyar rushewar ya fi na bututun ƙarfe mara kyau.
9. Tasiri gwajin Saboda tauri na tushe abu na ERW karfe bututu ne sau da yawa mafi girma fiye da na sumul karfe bututu, da taurin na weld ne key to ERW karfe bututu.Ta hanyar sarrafa abun ciki na ƙazanta a cikin albarkatun ƙasa, tsayi da shugabanci na yankan burr, siffar siffar kafa, kusurwar walda, saurin waldawa, ƙarfin dumama da mita, ƙarar walda mai walƙiya, matsakaicin mitar retraction zafin jiki da zurfin, tsawon sashin sanyaya iska da sauran sigogin tsari suna da garanti.Tasirin walda makamashi ya kai fiye da kashi 60% na karfen tushe.Tare da ƙarin haɓakawa, tasirin tasirin walda zai iya zama kusa da makamashin ƙarfe na tushe, wanda ke tabbatar da aiki mara matsala.
10. Gwajin fashewa The fashewar gwajin yi na ERW karfe bututu ne da yawa mafi girma fiye da daidaitattun bukatun, yafi saboda high uniformity na bango kauri da wannan m diamita na ERW karfe bututu.