I-S460N/Z35 steel plate normalizing, ipuleti laseYurophu elisezingeni eliphezulu lamandla, i-S460N, i-S460NL, iphrofayili yensimbi ye-S460N-Z35: S460N, S460NL, S460N-Z35 iyinsimbi yokusanhlamvu eshiswe eshisiwe eshiselwayo ngaphansi kwesimo esivamile/esivamile, ukujiya kwepuleti lensimbi le-S460 hhayi ngaphezu kuka-200 mm.
I-S275 yezinga lokusetshenziswa kwensimbi yesakhiwo esingeyona i-alloy :EN10025-3, inombolo: 1.8901 Igama lensimbi liqukethe izingxenye ezilandelayo: Incwadi yophawu S: ugqinsi oluhlobene nensimbi yesakhiwo olungaphansi kuka-16mm inani lamandla esivuno: inani elincane lesivuno Izimo zokuletha: U-N ucacisa ukuthi umthelela ezingeni lokushisa elingekho ngaphansi kuka -50 degrees umelwe ngosonhlamvukazi u-L.
I-S460N, S460NL, S460N-Z35 Ubukhulu, umumo, isisindo kanye nokuchezuka okuvumelekile.
Usayizi, umumo kanye nokuchezuka okuvumelekile kwepuleti lensimbi kuzohambisana nezinhlinzeko ze-EN10025-1 ngo-2004.
I-S460N, S460NL, S460N-Z35 isimo sokulethwa Amapuleti ensimbi ngokuvamile alethwa esimweni esivamile noma ngokugoqeka okuvamile ngaphansi kwezimo ezifanayo.
I-S460N, i-S460NL, i-S460N-Z35 I-Chemical Composition ye-S460N, i-S460NL, i-S460N-Z35 insimbi Ukwakhiwa kwamakhemikhali (ukuhlaziywa kokuncibilika) kuzohambisana nethebula elilandelayo (%).
I-S460N, S460NL, S460N-Z35 izidingo zokwakheka kwamakhemikhali: Nb+Ti+V≤0.26;I-Cr+Mo≤0.38 S460N Melting Analysis Carbon Equivalent (CEV).
I-S460N, S460NL, S460N-Z35 Izakhiwo zemishini Izakhiwo zemishini kanye nezinqubo ze-S460N, S460NL, S460N-Z35 zizohlangabezana nezidingo zethebula elilandelayo: Izakhiwo zemishini ye-S460N (efanele ukuphambana).
S460N, S460NL, S460N-Z35 amandla anomthelela esimweni esijwayelekile.
Ngemuva kokukhishwa kwe-annealing kanye nokujwayelekile, i-carbon steel ingathola isakhiwo esilinganiselwe noma esiseduze, futhi ngemva kokucisha, ingathola isakhiwo esingalingani.Ngakho-ke, lapho ufunda isakhiwo ngemva kokwelashwa kokushisa, akufanele kubhekiswe kuphela umdwebo wesigaba se-iron carbon kodwa futhi ne-isothermal transformation curve (C curve) yensimbi kufanele kubhekiswe kuyo.
Umdwebo wesigaba se-iron carbon ungabonisa inqubo ye-crystallization ye-alloy ekupholiseni kancane, isakhiwo ekamelweni lokushisa kanye nenani elilinganiselwe lezigaba, futhi i-C curve ingabonisa isakhiwo sensimbi ngokubunjwa okuthile ngaphansi kwezimo zokupholisa ezihlukene.I-C curve ifanele izimo zokupholisa isothermal;Ijika le-CCT (i-austenitic continuous cooling curve) lisebenza ezimweni zokupholisa eziqhubekayo.Ngokwezinga elithile, ijika elingu-C lingasetshenziswa futhi ukulinganisa ushintsho lwesakhiwo esincane phakathi nokupholisa okuqhubekayo.
Lapho i-austenite ipholile kancane (okulingana nokupholisa kwesithando somlilo, njengoba kuboniswe ku-Fig. 2 V1), imikhiqizo yokuguqulwa iseduze nesakhiwo sokulinganisa, okuyi-pearlite ne-ferrite.Ngokunyuka kwezinga lokupholisa, okungukuthi, lapho i-V3> V2> V1, ukupholisa okuphansi kwe-austenite kukhula kancane kancane, futhi inani le-ferrite enemvula liba lincane futhi lincane, kuyilapho inani le-pearlite likhula kancane kancane, futhi isakhiwo siba ngcono.Ngalesi sikhathi, inani elincane le-ferrite elinemvula lisakazwa kakhulu emngceleni wokusanhlamvu.
Ngakho-ke, isakhiwo se-v1 yi-ferrite+pearlite;Isakhiwo se-v2 yi-ferrite+sorbite;I-microstructure ye-v3 yi-ferrite+troostite.
Uma izinga lokupholisa liyi-v4, inani elincane le-ferrite yenethiwekhi kanye ne-troostite (ngezinye izikhathi inani elincane le-bainite lingabonakala) liyancishiswa, futhi i-austenite iguqulwa ngokuyinhloko ibe i-martensite ne-troostite;Uma izinga lokupholisa i-v5 lidlula izinga lokupholisa elibalulekile, insimbi iguqulwa ngokuphelele ibe yi-martensite.
Ukuguqulwa kwensimbi ye-hypereutectoid kufana nalokho kwensimbi ye-hypoeutectoid, ngomehluko wokuthi i-ferrite idlula kuqala ekugcineni kanye ne-cementite ekhuphuka kuqala ekuqaleni.
Isikhathi sokuthumela: Dec-14-2022
