Ibikoresho byiza byo mu rwego rwo hejuru nibyo shingiro ryo kubyara ibyuma byujuje ubuziranenge. Nyamara, ibicuruzwa byinshi byihuta byabakora ibicuruzwa bizaba bifite ibice. Kuki ibi bibaho?

Kugeza ubu, ibisobanuro rusange byerekana ibyuma bya karubone byubatswe bitangwa ninganda zo murugo ni φ 5.5- φ 45, urwego rukuze ni φ 6.5- φ 30。 Hariho impanuka nyinshi ziza ziterwa no gutandukanya fosifore, nko gutandukanya fosifore. insinga ntoya. Ingaruka zo gutandukanya fosifore hamwe nisesengura ryimiterere yatangijwe hano kugirango byerekanwe. Kwiyongera kwa fosifore mubishushanyo mbonera bya karubone yicyuma bizafunga akarere ka austenite kandi byanze bikunze byongera intera iri hagati ya solidus na fluidus. Iyo fosifore irimo ibyuma bikonje kuva mumazi kugeza bikomeye, bigomba kunyura mubushyuhe bunini.

Ikwirakwizwa rya fosifore mu byuma riratinda, kandi icyuma gishongeshejwe hamwe na fosifore nyinshi (aho gushonga gake) cyuzuyemo dendrite ya mbere ikomeye, iganisha ku gutandukanya fosifore. Kubicuruzwa bikunze kugira ibice mugihe cyo gukonjesha cyangwa gukonjesha ubukonje, isuzuma ryibyuma nisesengura byerekana ko ferrite na pearlite bigabanywa kumirongo, kandi muri matrike harimo ferrite yera. Hano harumucyo wijimye wijimye sulfide ushizemo uturere kuri matrike ya ferrite. Imiterere ya sulfide yitwa "umurongo wizimu" kubera gutandukanya sulfide.
Impamvu nuko agace gafite amacakubiri akomeye ya fosifore yerekana akarere keza keza mu gace gakungahaye kuri fosifore. Muburyo bukomeza bwo guterera, bitewe na fosifore nyinshi murwego rwera, kristu yinkingi ikungahaye kuri fosifore, bikagabanya fosifore. Iyo bilet ikomera, dendrite ya austenite ibanza gutandukana nicyuma gishongeshejwe. Fosifore na sulferi muri ziriya dendrite ziragabanuka, ariko amaherezo ibyuma bishongeshejwe byashizwemo birimo fosifore nibintu bya sulferi. Irakomera hagati ya axe dendrite kuko fosifore nibintu bya sulferi biri hejuru. Muri iki gihe, sulfide irashingwa, kandi fosifore irashonga muri matrix. Kubera ko fosifore na sulferi biri hejuru, sulfide ikorwa hano, na fosifore ishonga muri matrix. Kubwibyo, Bitewe nibirimo byinshi bya fosifore nibintu bya sulfure, ibirimo karubone mubisubizo bikomeye bya fosifore ni byinshi. Ku mpande zombi z'umukandara wa karubone, ni ukuvuga ku mpande zombi z'ahantu hakungahaye kuri fosifore, umukandara muremure kandi muto uhuza umwanya wa pearlite ugereranije n'umukandara wera wa ferrite urakorwa, kandi inyama zisanzwe zegeranye ziratandukana. Munsi yumuvuduko wo gushyushya, bilet izagera ku cyerekezo cyo gutunganya hagati y’imigozi, kubera ko umukandara wa ferrite urimo fosifore ndende, ni ukuvuga gutandukanya fosifore bizatuma habaho imiterere nini nini ya ferrite yumukandara ufite imiterere nini yumukandara wa ferrite. . Birashobora kugaragara ko hari kandi imirongo yijimye ya sulphide yoroheje mumukandara mugari wa ferrite, ukwirakwizwa hamwe numurongo muremure wa sulfide ukungahaye kuri fosifore ferrite, dukunze kwita "umurongo wizimu". (Reba Ishusho 1-2)

Flange Bolt

Muburyo bushyushye, mugihe cyose habayeho gutandukanya fosifore, ntibishoboka kubona microstructure imwe. Icy'ingenzi cyane, kubera ko gutandukanya fosifore byagize imiterere y "umurongo wizimu", byanze bikunze bizagabanya imiterere yimiterere yibikoresho. Gutandukanya fosifore mubyuma bya karubone birasanzwe, ariko impamyabumenyi yayo iratandukanye. Gutandukanya fosifore ikabije (imiterere yumuzimu) bizatera ingaruka mbi cyane mubyuma. Ikigaragara ni uko gutandukanya cyane fosifore ari yo nyirabayazana w'imitwe ikonje. Kuberako ibirimo fosifore mubinyampeke bitandukanye byibyuma bitandukanye, ibikoresho bifite imbaraga nubukomezi butandukanye. Kurundi ruhande, ituma ibikoresho bitanga impungenge zimbere, bizorohereza ibikoresho byoroshye gucika. Mubikoresho bifite imiterere yumurongo wa "umuzimu", ni mubyukuri kubera kugabanuka kwingufu, imbaraga, kuramba nyuma yo kuvunika no kugabanuka kwagace, cyane cyane kugabanuka kwingaruka zikomeye, ko fosifore yibikoresho ifite isano ikomeye nimiterere kandi ibiranga ibyuma.
Muri tissue "umuzimu" hagati yumurima wo kureba, umubare munini wa sulfide yoroheje kandi yoroheje yamenyekanye na metallography. Ibintu bitari ibyuma mubyuma byubatswe bibaho muburyo bwa oxyde na sulfide. Ukurikije igishushanyo mbonera cya GB / T10561-2005 Igishushanyo mbonera cy’ibice bikubiye mu bikoresho bitarimo ibyuma, ibyuma bya sulfide biri mu cyiciro cya B ni 2.5 cyangwa hejuru. Kwinjiza ibintu bidasanzwe ni isoko ishobora guturuka. Kubaho kwayo bizangiza cyane gukomeza no guhuza imiterere yicyuma, bityo bigabanye cyane imbaraga zimiterere.
Bikekwa ko sulfide muburyo bwimbere "umurongo wizimu" wicyuma nigice cyacitse byoroshye. Kubwibyo, umubare munini wibifunga byavunitse mumutwe ukonje no kuzimya ubushyuhe bwo kuzimya ahakorerwa umusaruro, ibyo bikaba byatewe numubare munini wa sulfide ndende yijimye. Iyi myenda idoda yangije ubukana bwibyuma kandi byongera ibyago byo kuvura ubushyuhe. "Umurongo wizimu" ntushobora gukurwaho muburyo busanzwe nubundi buryo, kandi ibintu byanduye bigomba kugenzurwa cyane mbere yo gushonga cyangwa ibikoresho fatizo byinjira mubihingwa. Ukurikije ibihimbano no guhindagurika, ibice bitarimo ibyuma bigabanijwemo alumina (ubwoko bwa A) silikatike (ubwoko C) na oxyde spherical (ubwoko D). Isura yacyo izagabanya ubukana bwicyuma kandi gihinduke ibinogo cyangwa ibice nyuma yo gukuramo, byoroshye gukora ibice mugihe cyumutwe ukonje kandi bigatera guhangayika mugihe cyo kuvura ubushyuhe, bityo bigatera kuzimya. Kubwibyo, ibitari ibyuma bigomba kugenzurwa cyane. Ibyuma byububiko bwa Carbone byubatswe GB / T700-2006 na GB T699-2016 Ibyuma byiza bya Carbone Byiza byashyize imbere ibisabwa kubintu bitarimo ibyuma. Kubice byingenzi, mubisanzwe ni A, B, C ubwoko bubi bwuruhererekane, urukurikirane rwiza ntirurenze 1.5, D, Ds ubwoko bubi bwa sisitemu kandi urwego 2 ntirurenze urwego 2.

Hebei Chengyi Engineering Materials Co., Ltd nisosiyete ifite imyaka 21 yubushakashatsi bwihuse kandi bwo kugurisha. Ibifunga byacu bifashisha ibikoresho byiza byo mu rwego rwo hejuru, umusaruro wateye imbere n’ikoranabuhanga rikora, hamwe na sisitemu yo gucunga neza kugira ngo ibicuruzwa bibe byiza. Niba ushishikajwe no kugura ibifunga, nyamuneka twandikire.