Ipayipi lensimbi engenamthungo yekhabhoni libhekisela epayipini elenziwe ngensimbi ye-carbon ngaphandle kwanoma yimaphi amalunga ashiselwe noma imithungo, futhi i-billet eqinile ikhishwa ngedayizi ukuze kwakheke ipayipi lomumo nosayizi oyifunayo.Ipayipi lensimbi elingenamthungo leCarbon lidumile ngenxa yokuqina kwalo okuvelele, amandla aqinile kanye nokumelana nokugqwala, okulenza libe lilungele izimboni eziningi ezihlanganisa uwoyela negesi, ezezimoto nezokwakha.
Elinye lamabanga adume kakhulu wepayipi lensimbi engenamthungo yiA106 Ibanga B, okuyindinganiso ye-ASTM yepayipi lensimbi engenamthungo yesevisi yezinga lokushisa eliphezulu.Inokuqukethwe kwekhabhoni ephezulu okungu-0.30%, okuyenza ilungele izinhlelo zokusebenza ezidinga izinga lokushisa eliphezulu nokucindezela.Ibuye ifanele ukucindezela okuphansi kanye nezicelo zokushisa eziphansi, kanye ne-welding kanye ne-brazing.
Elinye ibanga elidumileI-API 5L Ibanga B, okuyindinganiso yamapayipi ensimbi angenamthungo futhi ashiselwe kumasistimu okudlulisa amapayipi embonini kawoyela negesi.Inokuqukethwe kwekhabhoni ephezulu okungu-0.30%, okuyenza ilungele ukusetshenziswa ezindaweni ezinomfutho ophezulu kanye nezinga lokushisa eliphezulu.
Ngaphezu kwebanga, impahla yepayipi yensimbi engenamthungo nayo ibaluleke kakhulu.Izinto ezijwayelekile zifaka i-SAE 1020, enokuqukethwe kwekhabhoni ephansi futhi ilungele ukugoba, ukugoba kanye nokusebenza okufanayo kokubumba, kanye ne-SAE 1045, enokuqukethwe kwekhabhoni ephezulu futhi ilungele izinhlelo zokusebenza ezidinga ubulukhuni, ukuqina nokumelana nokugqoka.
Ezinye izinto zifaka i-ASTM A519 Grade 4130 yemigqa ye-hydraulic enengcindezi ephezulu kanye neshubhu yase-oilfield, kanye ne-ASTM A106 IBanga C elinokuqukethwe okuphezulu kwekhabhoni okungu-0.35% kwezicelo ezidinga ukumelana nokugqwala okuphezulu.
Sengiphetha, amapayipi ensimbi angenamthungo abalulekile ezinhlobonhlobo zezimboni futhi ukukhethwa kwebanga nezinto ezibonakalayo kuncike ekusetshenzisweni okuqondile.I-A106 Grade B kanye ne-API 5L Grade B kungamabanga adumile, kuyilapho izinto zokwakha ezifana ne-SAE 1020, SAE 1045,I-ASTM A519 Ibanga 4130, kanye ne-ASTM A106 Ibanga C yizinketho ezidumile.
Isikhathi sokuthumela: May-17-2023