Ipleyiti yentsimbi ye-S460N/Z35 iyenza iqheleke, ipleyiti enamandla aphezulu esemgangathweni waseYurophu, iprofayili yentsimbi ye-S460N, S460NL, S460N-Z35: I-S460N, S460NL, S460N-Z35 yintsimbi yengqolowa eshushu ejijekileyo enokudityaniswa phantsi kwemeko eqhelekileyo/eqhelekileyo yokujijeka, ubukhulu bepleyiti yentsimbi ye-S460 yodidi abudluli kwi-200mm.
I-S275 yokusetyenziswa kwesinyithi esingeyo-alloy structure standard: EN10025-3, inombolo: 1.8901 Igama lesinyithi linala macandelo alandelayo: Unobumba wesimboli S: isinyithi esinobume obuhambelanayo nobukhulu obungaphantsi kwe-16mm isivuno samandla ixabiso: ixabiso elincinci lesivuno Iimeko zokuhanjiswa: N icacisa ukuba impembelelo kubushushu obungaphantsi kwe--50 degrees imelwe ngunobumba omkhulu u-L.
S460N, S460NL, S460N-Z35 Ubukhulu, imo, ubunzima kunye nokuphambuka okuvumelekileyo.
Ubungakanani, imo kunye nokuphambuka okuvumelekileyo kwepleyiti yentsimbi kufuneka kuhambelane nemigaqo ye-EN10025-1 ngo-2004.
Imeko yokuhanjiswa kwe-S460N, S460NL, S460N-Z35 Iipleyiti zentsimbi zihlala zihanjiswa zikwimeko eqhelekileyo okanye ngokuqengqeleka okuqhelekileyo phantsi kweemeko ezifanayo.
I-S460N, S460NL, S460N-Z35 Ukwakheka kweekhemikhali zentsimbi ye-S460N, S460NL, S460N-Z35 Ukwakheka kweekhemikhali (uhlalutyo lokunyibilika) kufuneka kuhambelane nale theyibhile ilandelayo (%).
Iimfuneko zokwakheka kweekhemikhali ze-S460N, S460NL, S460N-Z35: Nb+Ti+V≤0.26; Cr+Mo≤0.38 S460N Uhlalutyo lokunyibilika kweCarbon Equivalent (CEV).
I-S460N, S460NL, S460N-Z35 Iimpawu zoomatshini Iimpawu zoomatshini kunye neempawu zenkqubo ze-S460N, S460NL, S460N-Z35 ziya kuhlangabezana neemfuno zetafile elandelayo: Iimpawu zoomatshini ze-S460N (ezifanelekileyo ukuba ziguqulwe).
Amandla empembelelo e-S460N, S460NL, S460N-Z35 akwimeko eqhelekileyo.
Emva kokufakelwa nokulungiswa, intsimbi yekhabhoni inokufumana isakhiwo esilinganayo okanye esiphantse sibe silinganiswe, kwaye emva kokucima, inokufumana isakhiwo esingesiso esilinganayo. Ke ngoko, xa kufundwa isakhiwo emva konyango lobushushu, akufuneki kubhekiselwe kuso kuphela umzobo wesigaba sekhabhoni yesinyithi kodwa kunye nejika loguquko lwe-isothermal (ijika le-C) lentsimbi.
Umzobo wesigaba sekhabhoni yesinyithi ungabonisa inkqubo yokwenza i-alloy ikhanye xa iphola kancinci, isakhiwo kubushushu begumbi kunye nobungakanani bezigaba, kwaye i-C curve ingabonisa isakhiwo sentsimbi enomxube othile phantsi kweemeko ezahlukeneyo zokupholisa. I-C curve ifanelekile kwiimeko zokupholisa ezi-isothermal; I-CCT curve (i-austenitic continuous cooling curve) iyasebenza kwiimeko zokupholisa eziqhubekayo. Ukuya kwinqanaba elithile, i-C curve ingasetyenziselwa ukuqikelela utshintsho lwe-microstructure ngexesha lokupholisa okuqhubekekayo.
Xa i-austenite ipholiswa kancinci (ilingana nokupholisa i-furnace, njengoko kubonisiwe kwiFig. 2 V1), iimveliso zotshintsho zisondele kwisakhiwo se-equilibrium, oko kukuthi i-pearlite kunye ne-ferrite. Ngokunyuka kwesantya sokupholisa, oko kukuthi, xa i-V3>V2>V1, ukupholisa okungapholiyo kwe-austenite kuyanda kancinci kancinci, kwaye inani le-ferrite epholisiweyo liyancipha kancinci kancinci, ngelixa inani le-pearlite likhula kancinci kancinci, kwaye isakhiwo siba sincinci. Ngeli xesha, inani elincinci le-ferrite epholisiweyo lisasazwa kakhulu kumda wengqolowa.
Ngoko ke, ulwakhiwo lwe-v1 yi-ferrite+pearlite; ulwakhiwo lwe-v2 yi-ferrite+sorbite; ulwakhiwo oluncinci lwe-v3 yi-ferrite+troostite.
Xa izinga lokupholisa liyi-v4, inani elincinci le-ferrite kunye ne-troostite yenethiwekhi (ngamanye amaxesha inani elincinci le-bainite linokubonwa) liyatshintshwa, kwaye i-austenite iguqulwa ikakhulu ibe yi-martensite kunye ne-troostite; Xa izinga lokupholisa i-v5 lidlula izinga lokupholisa elibalulekileyo, intsimbi iguqulwa ngokupheleleyo ibe yi-martensite.
Utshintsho lwentsimbi ye-hypereutectoid lufana nolwentsimbi ye-hypoeutectoid, umahluko kukuba i-ferrite iqalela kwi-latter yokugqibela kwaye i-cementite iqalela kwi-latter yokuqala.
Ixesha lokuthumela: Disemba-14-2022
