Ikhabhoni ingenye yezinto eziyinhloko zensimbi yezimboni.Ukusebenza nokwakheka kwensimbi kunqunywa kakhulu okuqukethwe nokusatshalaliswa kwekhabhoni ensimbi.Umthelela wekhabhoni ubaluleke kakhulu ensimbini engagqwali.Umthelela wekhabhoni esakhiweni sensimbi engagqwali ubonakala ikakhulukazi ezicini ezimbili.Ngakolunye uhlangothi, ikhabhoni iyisici esizinzisa i-austenite, futhi umphumela mkhulu (cishe izikhathi ezingu-30 kune-nickel), ngakolunye uhlangothi, ngenxa yokuhlobana okuphezulu kwekhabhoni ne-chromium.Enkulu, ene-chromium - uchungechunge oluyinkimbinkimbi lwama-carbides.Ngakho-ke, mayelana namandla nokumelana nokugqwala, indima ye-carbon ensimbi engagqwali iyaphikisana.
Ngokubona umthetho waleli thonya, singakhetha izinsimbi ezingagqwali ezinokuqukethwe kwekhabhoni okuhlukile ngokusekelwe ezimfuneko ezihlukene zokusetshenziswa.
Isibonelo, okuqukethwe kwe-chromium okujwayelekile kwamabanga amahlanu ensimbi we-0Crl3~4Cr13, okuyiwona asetshenziswa kakhulu embonini futhi okuncane kakhulu, kusethwe ku-12~14%, okungukuthi, izici i-carbon ne-chromium zakha i-chromium carbide zicatshangelwa.Inhloso ewujuqu ukuthi ngemuva kokuthi ikhabhoni ne-chromium kuhlanganiswe ku-chromium carbide, okuqukethwe kwe-chromium esixazululweni esiqinile ngeke kube ngaphansi kokuqukethwe kwe-chromium okuncane okungu-11.7%.
Ngokuqondene nalawa mabanga amahlanu ensimbi, ngenxa yomehluko wokuqukethwe kwekhabhoni, amandla nokumelana nokugqwala nakho kuhlukile.Ukumelana nokugqwala kwensimbi engu-0Cr13~2Crl3 kungcono kodwa amandla aphansi kunalawo ensimbi engu-3Crl3 ne-4Cr13.Isetshenziselwa kakhulu ukukhiqiza izingxenye zesakhiwo.
Ngenxa yokuqukethwe kwekhabhoni ephezulu, amabanga amabili ensimbi angathola amandla aphezulu futhi asetshenziswa kakhulu ekwenzeni iziphethu, imimese nezinye izingxenye ezidinga amandla aphezulu kanye nokumelana nokugqoka.Kwesinye isibonelo, ukuze unqobe ukugqwala kwe-intergranular kwensimbi engagqwali engu-18-8 chromium-nickel, okuqukethwe kwekhabhoni yensimbi kungancishiswa kube ngaphansi kuka-0.03%, noma i-elementi (i-titanium noma i-niobium) enobudlelwane obukhulu kune-chromium ne-carbon ingezwa ukuyivimbela ekwenzeni i-carbide.I-Chromium, isibonelo, lapho ubulukhuni obuphezulu nokumelana nokugqoka kuyizidingo eziyinhloko, singakwazi ukwandisa okuqukethwe kwekhabhoni yensimbi ngenkathi sikhulisa okuqukethwe kwe-chromium ngendlela efanele, ukuze sihlangabezane nezidingo zokuqina nokumelana nokugqokwa, futhi sicabangele ukumelana okuthile nokuGqwala, ukusetshenziswa kwezimboni njengamabheringi, amathuluzi okulinganisa nama-blades ngensimbi engagqwali 9Cr18 kanye ne-90C yensimbi engu-90Cr ephezulu njenge-9 MoVC0 njengensimbi engu-50Cr. %, ngoba okuqukethwe kwe-chromium nakho kunyuswa ngokufanele, ngakho kusaqinisekisa ukumelana nokugqwala.Dinga.
Ngokuvamile, okuqukethwe kwekhabhoni yezinsimbi ezingenasici okwamanje ezisetshenziswa embonini kuphansi kakhulu.Iningi lezinsimbi ezingenasici zinekhabhoni engu-0.1 kuya ku-0.4%, kanti izinsimbi ezimelana ne-asidi zinekhabhoni engu-0.1 kuya ku-0.2%.Izinsimbi ezingagqwali ezinokuqukethwe kwekhabhoni okukhulu kuno-0.4% zakha ingxenye encane kuphela yenani eliphelele lamabanga, ngoba ngaphansi kwezimo eziningi zokusetshenziswa, izinsimbi ezingenasici zihlala zinokumelana nokugqwala njengenjongo yazo eyinhloko.Ngaphezu kwalokho, okuqukethwe kwekhabhoni ephansi nakho kungenxa yezidingo ezithile zenqubo, njengokushisela okulula kanye nokuguqulwa okubandayo.
Isikhathi sokuthumela: Sep-27-2022