42CrMo umuyoboro w'icyuma udafite kasheni ibyuma byimbaraga-ndende cyane, hamwe nimbaraga nyinshi nubukomezi, gukomera gukomeye, nta bushyuhe bugaragara bugaragara, umunaniro mwinshi hamwe no guhangana ningaruka nyinshi nyuma yo kuzimya no gutwarwa, hamwe nubushyuhe bwiza bwo hasi.
Ibyuma birakwiriye gukora ibinini binini kandi biciriritse bya pulasitike bisaba imbaraga nubukomere.Ikirangantego cya ISO gihuye: 42CrMo4 ihuye nikirango cyabayapani: scm440 ihuye nikirangantego cy’Ubudage: 42CrMo4 hafi ya yose ihuye nikirango cyabanyamerika: ibiranga 4140 nuburyo bukoreshwa: imbaraga nyinshi, gukomera gukomeye, gukomera gukomeye, guhindura ibintu bito mugihe cyo kuzimya, nimbaraga zikomeye zo hejuru kandi imbaraga zo kwihangana ku bushyuhe bwo hejuru.Ikoreshwa mugukora kwibagirwa n'imbaraga zisumba izindi nini nini yazimye kandi ifite ubushyuhe burenze 35CrMo ibyuma, nkibikoresho binini byo gukurura moteri, ibikoresho byoherejwe na supercharger, ibyuma byinyuma, guhuza inkoni hamwe na clips zamasoko hamwe nuburemere bukomeye, guhuza imiyoboro hamwe nuburobyi ibikoresho bya peteroli amariba maremare munsi ya 2000m, hamwe nububiko bwimashini zunama.
Ibigize imiti ya 42CrMo umuyoboro wicyuma udafite kashe: c: 0.38% - 0.45%, si: 0.17% - 0.37%, mn: 0.50% - 0.80%, cr: 0.90% - 1.20%, mo: 0.15% - 0.25%, Ni ≤ 0.030%, P ≤ 0.030%, s ≤ 0.030%
Uruhare rwibintu bitandukanye bya shimi mumiyoboro yicyuma:
Carbone (c):mubyuma, hejuru ya karubone, niko imbaraga nubukomezi byibyuma, ariko plastike nubukomezi nabyo bizagabanuka;Ibinyuranye, uko karubone igabanutse, niko plastike nubukomezi bwibyuma, kandi imbaraga nubukomezi nabyo bizagabanuka.
Silicon (SI):wongeyeho ibyuma bisanzwe bya karubone nka deoxidizer.Ubwinshi bwa silicon irashobora kuzamura imbaraga zicyuma nta ngaruka mbi zigaragara kuri plastike, gukomera kwingaruka, imikorere ikonje ikonje no gusudira.Mubisanzwe, silikoni yibyuma byiciwe ni 0,10% - 0,30%, naho ibintu byinshi cyane (kugeza 1%) bizagabanya plastike, ubukana bwingaruka, kurwanya ingese no gusudira ibyuma.
Manganese (MN):ni deoxidizer idakomeye.Umubare ukwiye wa manganese urashobora kuzamura neza imbaraga zicyuma, gukuraho ingaruka za sulfure na ogisijeni ku bushyuhe buke bwibyuma, kunoza imikorere ishyushye yicyuma, no kunoza ubukonje bwubukonje bwibyuma, bitagabanije cyane plastike ningaruka gukomera kw'ibyuma.Ibiri muri manganese mubyuma bisanzwe bya karubone ni 0.3% - 0.8%.Ibintu byinshi cyane (kugeza 1.0% - 1.5%) bituma ibyuma bivunika kandi bigakomera, kandi bikagabanya kurwanya ingese no gusudira kwicyuma.
Chromium (CR):irashobora kunoza imbaraga nubukomezi bwibyuma bya karubone muburyo buzunguruka.Mugabanye kuramba no kugabanya agace.Iyo chromium irenze 15%, imbaraga nubukomezi bizagabanuka, kandi kurambura no kugabanuka kwakarere biziyongera.Ibice birimo ibyuma bya chromium biroroshye kubona ubuziranenge bwo gutunganya neza nyuma yo gusya.
Igikorwa nyamukuru cya chromium mu kuzimya no gutondekanya ibyuma byubaka ni ugutezimbere gukomera.Nyuma yo kuzimya no gushyuha, ibyuma bifite imiterere yubukanishi yuzuye, kandi chromium irimo karbide irashobora gukorwa mubyuma bya karubone, kugirango tunoze imyambarire yubuso bwibintu.Chromium ni kimwe mu bintu by'ingenzi mu byuma bidafite ingese, biteza imbere cyane cyane kwirinda ingese, gukomera no kwambara ibyuma.
Molybdenum (MO):molybdenum irashobora gutunganya ingano zibyuma, kunoza ubukana nimbaraga zumuriro, kandi bikagumana imbaraga zihagije hamwe no guhangana nizuba hejuru yubushyuhe bwinshi (guhangayika igihe kirekire no guhindagurika mubushyuhe bwinshi, bita creep).Ongeramo molybdenum mubyuma byubaka birashobora kunoza imiterere yubukanishi.Irashobora kandi kubuza ubukana bwibyuma bivangwa numuriro.
Amazi meza:ikintu cyangiza.Bizatera ibyuma bishyushye kandi bigabanye plastike, ubukana bwingaruka, imbaraga zumunaniro hamwe no kurwanya ingese.Amazi ya sulferi yo kubaka muri rusange ntashobora kurenga 0,055%, kandi ntashobora kurenga 0.050% mubyubatswe.Fosifore: ikintu cyangiza.Nubwo ishobora guteza imbere imbaraga no kurwanya ingese, irashobora kugabanya cyane plastike, ingaruka zikomeye, imikorere igoramye hamwe no gusudira, cyane cyane ubukonje bukabije ku bushyuhe buke.Ibirimo bigomba kugenzurwa cyane, mubisanzwe ntibirenza 0.050%, kandi ntibirenza 0.045% muburyo bwo gusudira.Oxygene: ibintu byangiza.Tera ubukana bushyushye.Mubisanzwe, ibirimo bisabwa kuba munsi ya 0.05%.Azote: irashobora gushimangira ibyuma, ariko igabanya cyane plastike, ubukana, gusudira hamwe nubukonje bukonje bwibyuma, kandi bikongerera gusaza nubukonje bukabije.Mubisanzwe, ibirimo birasabwa kuba munsi ya 0.008%.
Igihe cyo kohereza: Kanama-11-2022