Ngokwendlela yokukhiqiza, amapayipi ensimbi angahlukaniswa ngezigaba ezimbili: amapayipi ensimbi angenamthungo kanye namapayipi ensimbi ahlanganisiwe. Phakathi kwawo, amapayipi ensimbi e-ERW ayizinhlobo eziyinhloko zamapayipi ensimbi ahlanganisiwe. Namuhla, sikhuluma kakhulu ngezinhlobo ezimbili zamapayipi ensimbi asetshenziswa njengezinto zokusetshenziswa zokufaka: amapayipi okufaka angenamthungo kanye namapayipi okufaka ahlanganisiwe e-ERW.
Ipayipi le-casing elingenamthungo – ipayipi le-casing elenziwe ngepayipi lensimbi elingenamthungo; Ipayipi lensimbi elingenamthungo libhekisela epayipini lensimbi elenziwe ngezindlela ezine zokugoqa okushisayo, ukugoqa okubandayo, ukudweba okushisayo kanye nokudweba okubandayo. Umzimba wepayipi ngokwawo awunazo izingcezu zokushisela.
Umzimba we-ERW – ipayipi lensimbi le-ERW (Electric Resistant Weld) elenziwe ngepayipi elihlanganisiwe likagesi libhekisela epayipini elihlanganisiwe lomthungo elide elenziwe ngokushisela okunamandla okuphindaphinda okuphezulu. Amashidi ensimbi angavuthiwe (amakhoyili) amapayipi ahlanganisiwe ngogesi enziwe ngensimbi encane e-carbon egoqwe yi-TMCP (inqubo elawulwa yi-thermomechanical).
1. Ipayipi lensimbi elingenamthungo lokubekezelela i-OD: kusetshenziswa inqubo yokwakha egoqekile ngokushisa, ubukhulu buqedwa cishe ku-8000°C. Ukwakheka kwezinto zokusetshenziswa, izimo zokupholisa, kanye nesimo sokupholisa somqulu kunethonya elikhulu kububanzi bawo bangaphandle, ngakho-ke kunzima ukulawula ngokunembile ububanzi bangaphandle, futhi ububanzi bokuguquguquka bukhulu. Ipayipi lensimbi le-ERW: lakhiwa ngokugoba okubandayo, futhi ububanzi balo buncishiswa ngo-0.6%. Izinga lokushisa lenqubo lihlala linjalo ekushiseni kwegumbi, ngakho ububanzi bangaphandle bulawulwa ngokunembile, kanti ububanzi bokuguquguquka buncane, okusiza ekususweni kwamabhande esikhumba amnyama;
2. Ipayipi lensimbi elingenamthungo elinokubekezelelana kobukhulu bodonga: Likhiqizwa ngokubhoboza insimbi eyindilinga, futhi ukuphambuka kobukhulu bodonga kukhulu. Ukugoqa okushisayo okulandelayo kungasusa ukungalingani kobukhulu bodonga, kodwa imishini yesimanje kakhulu ingakulawula kuphela ngaphakathi kuka-±5~10%t. Ipayipi lensimbi le-ERW: Uma usebenzisa ikhoyili egoqekile eshisayo njengezinto zokusetshenziswa, ukubekezelelana kobukhulu bokugoqa okushisayo kwesimanje kungalawulwa ngaphakathi kuka-0.05mm.
3. Amaphutha ebusweni bangaphandle bento yokusebenza esetshenziselwa ukubonakala kwepayipi lensimbi elingenamthungo awakwazi ukususwa enkambisweni yokugoqa eshisayo, kodwa angapholishwa kuphela ngemva kokuba umkhiqizo oqediwe usuqediwe, ukushaywa kwe-helical okushiywe ngemuva kokubhoboza kungasuswa kancane kuphela enkambisweni yokunciphisa izindonga. Ipayipi lensimbi le-ERW lenziwe nge-hot rolled coil njengezinto zokusetshenziswa. Ikhwalithi yobuso be-coil iyafana nekhwalithi yobuso bepayipi lensimbi le-ERW. Ikhwalithi yobuso be-hot rolled coils kulula ukuyilawula futhi isezingeni eliphezulu. Ngakho-ke, ikhwalithi yobuso bepayipi lensimbi le-ERW ingcono kakhulu kuneyombhobho wensimbi ongenamthungo.
4. Ipayipi lensimbi eliyindilinga elingenamthungo: kusetshenziswa inqubo yokugoqa eshisayo. Ukwakheka kwezinto zokusetshenziswa zepayipi lensimbi, izimo zokupholisa kanye nesimo sokupholisa se-roll kunethonya elikhulu kububanzi balo bangaphandle, ngakho-ke kunzima ukulawula ngokunembile ububanzi bangaphandle, futhi ububanzi bokuguquguquka bukhulu. Ipayipi lensimbi le-ERW: elikhiqizwa ngokugoba okubandayo, ububanzi bangaphandle bulawulwa ngokunembile, kanti ububanzi bokuguquguquka buncane.
5. Ukuhlolwa kokudonsa Izakhiwo zokudonsa zepayipi lensimbi elingenamthungo kanye nepayipi lensimbi le-ERW zihambisana namazinga e-API, kodwa amandla epayipi lensimbi elingenamthungo ngokuvamile asemkhawulweni ophezulu, kanti ukuguquguquka kusemkhawulweni ophansi. Ngokuphambene nalokho, inkomba yamandla epayipi lensimbi le-ERW isesimweni esihle kakhulu, kanti inkomba yepulasitiki iphakeme ngo-33.3% kunejwayelekile. Isizathu ukuthi njengezinto zokusetshenziswa zepayipi lensimbi le-ERW, ukusebenza kwekhoyili eligoqiwe elishisayo kuqinisekiswa ngokuncibilikisa i-micro-alloy, ukucwengisisa ngaphandle kwesithando, kanye nokupholisa nokugoqa okulawulwayo; ipulasitiki. Ukuhlangana okunengqondo.
6. Izinto zokusetshenziswa zepayipi lensimbi le-ERW yi-hot-rolled coil, enokunemba okuphezulu kakhulu enqubweni yokugoqa, okungaqinisekisa ukusebenza okufanayo kwengxenye ngayinye ye-coil.
7. Izinto zokusetshenziswa zepayipi le-coil yensimbi egoqwe ngokushisa ye-ERW enosayizi wokusanhlamvu isebenzisa i-billet ebanzi nebanzi yokusanhlamvu eqhubekayo, ungqimba lokuqina lokusanhlamvu oluhle luwugqinsi, akukho ndawo yamakristalu ekholomu, ukugoba okuncishisiwe kanye nama-pores, ukuphambuka kokwakheka kuncane. , futhi isakhiwo sincane; ukulawula inqubo yokugoqa elandelayo Ukusetshenziswa kobuchwepheshe bokugoqa okubandayo kuqinisekisa nosayizi wokusanhlamvu kwezinto zokusetshenziswa.
8. Ukuhlolwa kokumelana nokushelela kwepayipi lensimbi le-ERW kuhlobene nezici zezinto zokusetshenziswa kanye nenqubo yokukhiqiza ipayipi. Ukufana kobukhulu bodonga kanye nokuma kwe-oval kungcono kakhulu kunepayipi lensimbi elingenamthungo, okuyisizathu esiyinhloko sokuthi ukumelana kokuwa kuphakeme kunokwamapayipi ensimbi angenamthungo.
9. Ukuhlolwa komthelela Ngenxa yokuthi ukuqina kwezinto eziyisisekelo zepayipi lensimbi le-ERW kuphakeme kaningana kunokwepayipi lensimbi elingenamthungo, ukuqina kwe-weld kuyisihluthulelo sepayipi lensimbi le-ERW. Ngokulawula okuqukethwe kokungcola ezintweni zokusetshenziswa, ukuphakama kanye nesiqondiso se-cutting burr, ukuma komphetho wokwakha, i-engeli yokushisela, isivinini sokushisela, amandla okushisa kanye nemvamisa, ivolumu yokushisela yokukhipha, izinga lokushisa lokuhoxisa imvamisa ephakathi kanye nokujula, ubude besigaba sokupholisa umoya kanye nezinye izilinganiso zenqubo kuyaqinisekiswa. Umthelela we-weld wamandla ufinyelela ngaphezu kwama-60% ensimbi eyisisekelo. Ngokuthuthukiswa okwengeziwe, amandla omthelela we-weld angaba seduze namandla ensimbi eyisisekelo, okuqinisekisa ukusebenza okungenazinkinga.
10. Ukuhlolwa kokuqhuma Ukusebenza kokuhlolwa kokuqhuma kwamapayipi ensimbi e-ERW kuphakeme kakhulu kunezidingo ezijwayelekile, ikakhulukazi ngenxa yokufana okuphezulu kobukhulu bodonga kanye nobubanzi obufanayo bangaphandle bamapayipi ensimbi e-ERW.