Ukuqinisekiswa kwekhwalithi yepayipi lensimbi eliwugqinsi elenziwe eChina
Ipayipi lensimbi ye-alloy lisetshenziselwa ikakhulukazi amapayipi anengcindezi ephezulu kanye namazinga okushisa aphezulu kanye nemishini efana nesikhungo samandla, amandla enuzi, ubhayela onengcindezi ephezulu, i-high-temperature superheater kanye ne-reheater. Yenziwe ngensimbi yekhwalithi ephezulu yekhabhoni, insimbi yesakhiwo sealloy kanye nensimbi engagqwali engashi ngokugoqeka okushisayo (ukukhipha, ukunwetshwa) noma ukugoqa okubandayo (umdwebo). Inzuzo enkulu yepayipi lensimbi ye-alloy ukuthi ingasetshenziswa kabusha ngo-100%, okuhambisana nesu likazwelonke lokuvikelwa kwemvelo, ukonga amandla kanye nokongiwa kwezinsiza. Umgomo kazwelonke ukhuthaza ukunwetshwa kwenkundla yokufaka isicelo sepayipi elinomfutho ophezulu we-alloy. Njengamanje, ukusetshenziswa kwamashubhu e-alloy e-China kubala ingxenye kuphela yensimbi ephelele emazweni athuthukile. Ukwandiswa kwenkundla yokusetshenziswa kwamashubhu e-alloy kunikeza indawo ebanzi yokuthuthukiswa kwemboni. Ngokocwaningo lweqembu lochwepheshe begatsha le-alloy pipe ye-China Special Steel Association, isidingo sobude bepayipi le-alloy ecindezelayo e-China sizokhula ngo-10-12% ngonyaka ngokuzayo. Ipayipi le-alloy lichazwa njengepayipi lensimbi ngokusho kwempahla yokukhiqiza (okungukuthi impahla). Njengoba igama liphakamisa, iyipayipi eyenziwe nge-alloy; Ipayipi elingenamthungo lichazwa ngokuya ngenqubo yokukhiqiza yepayipi lensimbi (i-seamless seam). Okuhlukile kumapayipi angenamthungo ipayipi elingenamthungo, elihlanganisa ipayipi elishiselwe ngomthungo oqondile kanye nepayipi elivunguzayo.
16-50Mn
27SiMn
40Kr
12-42CrMo
16Mn
12Cr1MoV
T91
27SiMn
30CrMo
15CrMo
20G
Cr9Mo
10CrMo910
15Mo3
15CrMoV
35CrMoV
45CrMo
15CrMoG
12CrMoV
45Kr
50Cr
45crnimo et al.
Amapayipi engxubevange anezingxenye ezingenalutho futhi asetshenziswa kakhulu njengamapayipi okuthutha uketshezi, njengamapayipi okuthutha uwoyela, igesi yemvelo, igesi, amanzi nezinye izinto eziqinile. Uma kuqhathaniswa nensimbi eqinile njengensimbi eyindilinga, ipayipi lensimbi ye-alloy linesisindo esilula uma ukugoba kwalo namandla okugoqa kuyafana. Ipayipi lensimbi ye-alloy iyinsimbi yesigaba sezomnotho, esetshenziswa kabanzi ukwenza izingxenye zesakhiwo kanye nezingxenye zemishini, njengepayipi lokubhoboza uwoyela, umshini wokuhambisa imoto, uhlaka lwebhayisikili kanye nesikafula sensimbi esisetshenziswa ekwakheni. Ukwenza izingxenye zendandatho ngepayipi lensimbi ye-alloy kungathuthukisa izinga lokusetshenziswa kwezinto, kube lula inqubo yokukhiqiza, konga izinto zokwakha kanye namahora okucubungula, njengeringi elithwalayo, umkhono kajack, njll. Okwamanje, ipayipi lensimbi selisetshenziswe kabanzi ekukhiqizeni. Ipayipi yensimbi ye-alloy nayo iyinto ebaluleke kakhulu yazo zonke izinhlobo zezikhali ezijwayelekile. Isibhamu kanye nomgqomo kufanele kwenziwe ngepayipi lensimbi. Ipayipi lensimbi ye-alloy lingahlukaniswa libe yipayipi eliyindilinga kanye nepayipi elimise okukhethekile ngokuya ngendawo ehlukene ye-cross-sectional kanye nokuma. Ngenxa yokuthi indawo eyindilinga inkulu kakhulu ngaphansi kwesimo somjikelezo olinganayo, uketshezi oluningi lungathuthwa ngepayipi eliyindilinga. Ukwengeza, lapho isigaba sendandatho singaphansi kokucindezela kwe-radial yangaphakathi noma yangaphandle, amandla afana kakhulu. Ngakho-ke, amapayipi amaningi ensimbi angamapayipi ayindilinga.
