Ipayipi lensimbi engenamthungo yekhabhoni libhekisela epayipini elenziwe ngensimbi yekhabhoni elingenazo izihlanganisi noma imithungo ehlanganisiwe, futhi i-billet eqinile ikhishwa ngedayisi ukuze kwakhiwe ipayipi elinesimo nobukhulu obufunwayo. Ipayipi lensimbi engenamthungo yekhabhoni lidumile ngokuqina kwalo okuvelele, amandla okudonseka kanye nokumelana nokugqwala, okwenza libe lihle kakhulu ezimbonini eziningi ezihlanganisa uwoyela negesi, izimoto kanye nokwakha.
Enye yezinhlobo ezidumile kakhulu zepayipi lensimbi engenamthungo yekhabhoniIbanga A106 B, okuyindinganiso ye-ASTM yamapayipi ensimbi yekhabhoni angenamthungo ukuze kusetshenziswe izinga lokushisa eliphezulu. Inokuqukethwe okuphezulu kwekhabhoni okungu-0.30%, okwenza kube kuhle kakhulu ekusetshenzisweni okudinga izinga lokushisa eliphezulu kanye nengcindezi. Iphinde ifanele ukusetshenziswa kokucindezela okuphansi kanye nezinga lokushisa eliphansi, kanye nokushisela kanye nokubhoboza.
Elinye ibanga elidumile yileliI-API 5L Ibanga B, okuyindinganiso yamapayipi ensimbi angenamthungo futhi ahlanganisiwe ezinhlelweni zokudlulisa amapayipi embonini kawoyela negesi. Inokuqukethwe okuphezulu kwekhabhoni okungu-0.30%, okwenza kube kuhle ukusetshenziswa ezindaweni zokucindezela okuphezulu kanye nezinsizakalo zokushisa okuphezulu.
Ngaphezu kwebanga, izinto zombhobho wensimbi ongenamthungo wekhabhoni nazo zibaluleke kakhulu. Izinto ezivamile zifaka phakathi i-SAE 1020, enokuqukethwe okuphansi kwekhabhoni futhi ilungele ukugoba, ukufutha kanye nemisebenzi efanayo yokwakha, kanye ne-SAE 1045, enokuqukethwe okuphezulu kwekhabhoni futhi ilungele izinhlelo zokusebenza ezidinga ubulukhuni, ukuqina kanye nokumelana nokuguguleka.
Ezinye izinto zifaka phakathi i-ASTM A519 Grade 4130 yemigqa ye-hydraulic enomfutho ophezulu kanye namapayipi e-oyela, kanye ne-ASTM A106 Grade C enokuqukethwe okuphezulu kwekhabhoni okungu-0.35% kwezicelo ezidinga ukumelana nokugqwala okuphezulu.
Ekuphetheni, amapayipi ensimbi angenamthungo ekhabhoni abalulekile ezinhlobonhlobo zezimboni futhi ukukhetha ibanga nezinto zokwakha kuncike ekusetshenzisweni okuthile. Ibanga le-A106 B kanye ne-API 5L B yizigaba ezidumile, kuyilapho izinto ezifana ne-SAE 1020, i-SAE 1045,Ibanga le-ASTM A519 4130, kanye ne-ASTM A106 Grade C kuyizinketho ezidumile.
Isikhathi sokuthunyelwe: Meyi-17-2023