I-S460N/Z35 ipleyiti yensimbi eqhelekileyo, i-European standard high power plate, i-S460N, i-S460NL, i-S460N-Z35 iprofayili yensimbi: S460N, S460NL, S460N-Z35 ishushu iqengqeleke igayiwe ecikizekileyo intsimbi yenkozo phantsi kwemeko eqhelekileyo/yesiqhelo yokuqengqeleka, inqanaba le-S460 ubukhulu beplate yentsimbi. hayi ngaphezulu kwe-200mm.
I-S275 ye-non-alloy structural steel standard standard : EN10025-3, inombolo: 1.8901 Igama lentsimbi liquka la macandelo alandelayo: Unobumba weSimboli S: intsimbi yesakhiwo enxulumene nobukhulu obungaphantsi kwe-16mm ixabiso lamandla esivuno: ixabiso elincinci lemveliso Iimeko zokuhanjiswa: I-N ixela ukuba impembelelo kwiqondo lobushushu elingekho ngaphantsi kwe -50 degrees imelwe ngonobumba omkhulu u-L.
S460N, S460NL, S460N-Z35 Ubukhulu, imilo, ubunzima kunye nokuphambuka okuvumelekileyo.
Ubungakanani, imilo kunye nokuphambuka okuvumelekileyo kwentsimbi yentsimbi kuya kuhambelana nemimiselo ye-EN10025-1 kwi-2004.
I-S460N, i-S460NL, i-S460N-Z35 isimo sokuhanjiswa Iipleyiti zensimbi zivame ukuhanjiswa kwimeko eqhelekileyo okanye ngokujikeleza okuqhelekileyo phantsi kweemeko ezifanayo.
I-S460N, i-S460NL, i-S460N-Z35 i-Chemical Composition ye-S460N, i-S460NL, i-S460N-Z35 yensimbi Ukuqulunqwa kweekhemikhali (uhlalutyo lokunyibilika) kuya kuhambelana nale tafile ilandelayo (%).
I-S460N, i-S460NL, i-S460N-Z35 iimfuno zokwakheka kweekhemikhali: Nb+Ti+V≤0.26;I-Cr+Mo≤0.38 S460N Uhlalutyo lokunyibilika kweCarbon Equivalent (CEV).
I-S460N, i-S460NL, i-S460N-Z35 Iipropati ze-Mechanical Iipropati ze-mechanical kunye nenkqubo ye-S460N, i-S460NL, i-S460N-Z35 iya kuhlangabezana neemfuno zetheyibhile ilandelayo: Iimpawu ze-Mechanical ze-S460N (ezifanelekileyo kwi-transverse).
S460N, S460NL, S460N-Z35 amandla empembelelo kwimeko eqhelekileyo.
Emva kwe-annealing and normalizing, i-carbon steel inokufumana ukulungelelaniswa okanye kufuphi nesakhiwo esinokulinganisela, kwaye emva kokucima, inokufumana isakhiwo esingalinganiyo.Ngoko ke, xa ufunda isakhiwo emva kokunyanga ukushisa, kungekhona kuphela umzobo we-iron carbon phase kodwa kunye ne-isothermal transformation curve (C curve) yentsimbi kufuneka ibhekiswe kuyo.
Umzobo we-iron carbon phase ungabonisa inkqubo ye-crystallization ye-alloy ekupholiseni okucothayo, isakhiwo kwiqondo lokushisa lokushisa kunye nomlinganiselo ohambelana nezigaba, kunye ne-C curve ingabonisa isakhiwo sentsimbi kunye nokubunjwa okuthile phantsi kweemeko zokupholisa ezahlukeneyo.I-C curve ifanelekile kwiimeko zokupholisa isothermal;Ijika leCCT (i-austenitic continuous cooling curve) lisebenza kwiimeko zokupholisa eziqhubekayo.Ukuya kwinqanaba elithile, i-C curve ingasetyenziselwa ukuqikelela utshintsho lwe-microstructure ngexesha lokupholisa okuqhubekayo.
Xa i-austenite ipholile ngokukhawuleza (ilingana nokupholisa kwesithando somlilo, njengoko kuboniswe kwi-Fig. 2 V1), iimveliso zenguqu zisondele kwisakhiwo sokulinganisa, okuyi-pearlite kunye ne-ferrite.Ngokunyuka kwezinga lokupholisa, oko kukuthi, xa i-V3> V2> V1, i-undercooling ye-austenite iyanda ngokuthe ngcembe, kwaye inani le-ferrite ephantsi liba lincinci kwaye lincinci, ngelixa inani le-pearlite likhula ngokuthe ngcembe, kwaye isakhiwo siba ngcono.Ngeli xesha, inani elincinci le-ferrite enqabileyo lisasazwa kakhulu kumda wengqolowa.
Ke ngoko, ubume be-v1 yi-ferrite+pearlite;Ubume be-v2 yi-ferrite+sorbite;I-microstructure ye-v3 yi-ferrite+troostite.
Xa izinga lokupholisa li-v4, inani elincinci le-network ferrite kunye ne-troostite (ngamanye amaxesha inani elincinci le-bainite lingabonwa) liyancipha, kwaye i-austenite iguqulwa kakhulu ibe yi-martensite kunye ne-troostite;Xa izinga lokupholisa i-v5 lidlula izinga lokupholisa elibalulekileyo, intsimbi iguqulwa ngokupheleleyo ibe yi-martensite.
Ukuguqulwa kwensimbi ye-hypereutectoid kufana nentsimbi ye-hypoeutectoid, kunye nokwahlukana ukuba i-ferrite iyancipha kuqala ekugqibeleni kunye ne-cementite iyancipha kuqala ngaphambili.
Ixesha lokuposa: Dec-14-2022
