Isesengura ryimiterere no gucamo ibice bya Fosifore mumashanyarazi ya Carbone

Isesengura ryimiterere no gucamo ibice bya Fosifore mumashanyarazi ya Carbone

Kugeza ubu, ibisobanuro rusange byerekana ibyuma bya karubone byubatswe n’utubari n’utubari dutangwa n’uruganda rukora ibyuma byo mu rugo ni .5 5.5-φ45, kandi urwego rukuze ni φ6.5-φ30.Hariho impanuka nyinshi nziza ziterwa no gutandukanya fosifore mumashanyarazi mato mato hamwe nibikoresho fatizo.Reka tuvuge ku ngaruka zo gutandukanya fosifore hamwe nisesengura ryimiterere yibice kugirango ubone.

Kwiyongera kwa fosifore mubyuma birashobora gufunga agace ka austenite mugice cyicyuma cya karubone.Kubwibyo, intera iri hagati ya solidus na fluidus igomba kwaguka.Iyo ibyuma birimo fosifore bikonje kuva mumazi kugeza bikomeye, bigomba kunyura mubushyuhe bwinshi.Ikwirakwizwa rya fosifore mubyuma biratinda.Muri iki gihe, icyuma gishongeshejwe hamwe na fosifore nyinshi (aho gushonga gake) cyuzuyemo icyuho kiri hagati ya dendrite ya mbere ikomeye, bityo bigatuma habaho gutandukanya fosifore.

Muburyo bukonje cyangwa uburyo bwo gukuramo ubukonje, ibicuruzwa byacitse bikunze kugaragara.Igenzura ryakozwe nisesengura ryibicuruzwa byacitse byerekana ko ferrite na pearlite bigabanywa mumigozi, kandi umurongo wicyuma cyera ushobora kugaragara neza muri matrise.Muri ferrite, hariho imirongo yigihe gito imeze nk'urumuri rwinshi rwa sulfide rwuzuye kuri iyi materique ya ferrite.Iyi miterere imeze nka bande iterwa no gutandukanya fosifike ya sulfuru yitwa "umurongo wizimu".Ni ukubera ko akarere gakungahaye kuri fosifore muri kariya gace hamwe no gutandukanya fosifore bigaragara ko yera kandi yaka.Bitewe na fosifore nyinshi yo mu mukandara wera kandi ukeye, ibirimo bya karubone mu mukandara wera ukungahaye kuri fosifore biragabanuka cyangwa ibirimo karubone ni bito cyane.Muri ubu buryo, inkingi ya kristu yikurikiranya ikomeza gutera imbere yerekeza hagati mugihe cyo gukomeza gutera umukandara ukungahaye kuri fosifore..Iyo bilet imaze gukomera, dendrite ya austenite ibanza kugwa mubyuma bishongeshejwe.Fosifore na sulferi biri muri ziriya dendrite ziragabanuka, ariko ibyuma bya nyuma bishongeshejwe bikungahaye bikungahaye kuri fosifore n’ibintu byanduye bya sulferi, bikomera hagati ya axe dendrite, bitewe n’ibintu byinshi bya fosifore na sulferi, sulferi izakora sulfide, kandi fosifore izaseswa muri matrix.Ntibyoroshye gukwirakwizwa kandi bifite ingaruka zo gusohora karubone.Carbone ntishobora gushonga, kuburyo hafi ya fosifore yumuti ukomeye (Impande zumuzungu wa ferrite) zifite karubone nyinshi.Ikintu cya karubone kumpande zombi z'umukandara wa ferrite, ni ukuvuga, kumpande zombi z'akarere gakungahaye kuri fosifore, kimwe kigizwe n'umukandara muto, uhuza umwanya wa pearlite ugereranije n'umukandara wera wa ferrite, hamwe na tissue isanzwe yegeranye Bitandukanye.Iyo fagitire ishyushye kandi igakanda, ibiti bizagenda byerekeza ku cyerekezo cyo gutunganya.Nukuri kuberako bande ya ferrite irimo fosifore ndende, ni ukuvuga, gutandukanya bikomeye fosifore biganisha ku gushiraho imiterere nini nini kandi yaka ya ferrite ya bande, hamwe nicyuma kigaragara Hariho imirongo yijimye yijimye ya sulfide mumurongo mugari kandi urumuri rwa umubiri.Iri tsinda rikungahaye kuri fosifore rifite imirongo miremire ya sulfide nicyo dukunze kwita umuryango "umuzimu" (reba Ishusho 1-2).