Uburyo bwo kuvura ubushyuhe - kuzimya, kurakara, bisanzwe, annealing

Kuzimya ibyuma ni ugushyushya ibyuma ubushyuhe bukabije Ac3a (ibyuma bya sub-eutectic) cyangwa Ac1 (ibyuma birenga eutectic) hejuru yubushyuhe, fata igihe runaka, kugirango byose cyangwa igice cya austenitisation, hanyuma byihuse kuruta igipimo gikomeye cyo gukonjesha igipimo cyo gukonjesha gukonje byihuse kuri Madamu hepfo (cyangwa Madamu hafi ya isothermal) kugirango hahindurwe martensite a (cyangwa bainite) uburyo bwo kuvura ubushyuhe. Mubisanzwe kandi amavuta ya aluminiyumu, imiringa yumuringa, titanium, ibirahuri bikonje hamwe nibindi bikoresho bifasha igisubizo gikomeye "cyangwa hamwe no gukonjesha byihuse uburyo bwo kuvura ubushyuhe bwitwa kuzimya".

 

Intego yo kuzimya:
(1) Kunoza imiterere yubukorikori bwibyuma mubintu cyangwa ibice.
(2) kunoza ibintu bifatika cyangwa imiti yibikoresho bimwe bidasanzwe

 

Uburyo bwo kuzimya: cyane cyane kuzimya rimwe-amazi, kuzimya kabiri-kuzimya, kuzimya icyiciro, kuzimya isothermal, kuzimya hafi nibindi.

Ubushyuhe nicyuma kizimye mubintu cyangwa igice cyashyutswe nubushyuhe runaka, nyuma yo gufata igihe runaka, gukonjeshwa muburyo runaka bwo gutunganya ubushyuhe, ubushyuhe nigikorwa ako kanya nyuma yo kuzimya, mubisanzwe nacyo gikora akazi ko kuvura ubushyuhe y'ibikorwa byanyuma, bityo rero inzira ihuriweho yo kuzimya no gutwarwa yitwa ubuvuzi bwa nyuma.
Uruhare rwo kurakara ni:
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(3) hindura imiterere yubukanishi bwibyuma kugirango uhuze ibisabwa kugirango ukoreshwe.

 

Ibipimo bisabwa: imikoreshereze itandukanye yakazi igomba guhindurwa mubushyuhe butandukanye kugirango ihuze ibisabwa mukoresha. . byateye imbere. (2) isoko muri 350 ~ 500 ℃ munsi yubushyuhe bwo hagati, irashobora kubona ibintu byoroshye kandi bikomeye. .

 

Ubusanzwe ni ubwoko bwubushyuhe bwo kunoza ubukana bwibyuma, ibice byibyuma bishyushya ubushyuhe bwa Ac3 hejuru ya 30 ~ 50 ℃, nyuma yo gufata igihe runaka hanze yumuyaga ukonje. Ikintu nyamukuru kiranga nuko igipimo cyo gukonjesha cyihuta kuruta kugaruka no munsi yukuzimya, mubisanzwe birashobora gukonjeshwa byihuse mugutunganya ingano ya kristaline itunganya ibyuma, imwe yuzuzanya irashobora kubona imbaraga zishimishije, kandi irashobora kuzamura cyane capriciousness (AKV agaciro ). imikorere.

 

Annealing nicyuma gishyuha buhoro buhoro ubushyuhe runaka, bugakomeza igihe gihagije, hanyuma mukigero gikwiye cya zone ikonje yuburyo bwo gutunganya ubushyuhe bwicyuma. Kuvura ubushyuhe bwa Annealing bigabanijwemo annealing yuzuye, annealing ituzuye hamwe no kugabanya imihangayiko. Imiterere yimashini yibikoresho irashobora gukoreshwa ikizamini cya Kinze, irashobora kandi kugaragazwa nikizamini gikomeye. Ibikoresho byinshi byibyuma bitangwa muburyo bwagaruwe nubushyuhe, kugerageza ibyuma birashobora gukoreshwa mugupima ubukana bwa Locke, kugerageza ubukana bwa HRB, kumasahani yicyuma cyoroshye, imirongo yicyuma, hamwe nicyuma gikikijwe nicyuma, urashobora gukoresha hejuru yikizamini cya Locke. , ibikoresho byo kubaka HRT gukomera.
Intego yo kuzimya no gufatira hamwe: 1 kunoza ibicuruzwa kugirango ukureho ubukana bwawe muri casting, guhimba, kuzunguruka no gusudira biterwa nubusembwa butandukanye bwumuteguro, hamwe nibibazo bisigaye, kugirango wirinde guhindura imikorere yakazi, guturika. 2 koroshya igihangano kugirango ukore gukata. 3 gutunganya ingano, kunoza ishyirahamwe hagamijwe kunoza imiterere yubukorikori. 4 kubwo kuvura ubushyuhe bwa nyuma (kuzimya, kurakara) gukora akazi keza k'ibipimo by'ishirahamwe.
Bikunze gukoreshwa annealing inzira ni:
(1) annealing yuzuye. Ikoreshwa mugutunganya ibyuma bya karubone yo hagati no hepfo mukujugunya, guhimba no gusudira nyuma yo kugaragara kwimiterere mibi yimikorere ya tissue yubushyuhe bukabije.
(2) spheroidal annealing. Byakoreshejwe kugabanya ubukana buke bwibyuma byuma no gutwara ibyuma nyuma yo guhimba.
(3) isothermal annealing. Byakoreshejwe kuri Jiangdu nikel imwe, chromium ibirimo inguni ibyuma ibyuma byubatswe ibyuma bikomeye.
(4) kongera gukora annealing. Byakoreshejwe kuri trolley insinga, urupapuro mugushushanya gukonje, inzira yo gukonjesha ikonje yibintu bikomera (ubukana bwiyongera, plastike iragabanuka)
(5) gushushanya. Byakoreshejwe mugukora icyuma kirimo umubare munini wumubiri wa karburize mumashanyarazi yoroheje hamwe na plastike nziza.
(6) gukwirakwiza annealing. Byakoreshejwe mugukora imiti ya alloy casting imwe, kunoza imikorere.
(7) guhagarika umutima annealing. Ikoreshwa mugukuraho imihangayiko yimbere yo guta ibyuma no gusudira.