Kuki imiyoboro y'ibyuma igomba kuvurwa ubushyuhe?

Igikorwa cyo kuvura ubushyuhe nugutezimbere ibikoresho byububiko bwicyuma, gukuraho imihangayiko isigaye no kunoza imikorere yayo.

Ukurikije intego zitandukanye zo kuvura ubushyuhe, uburyo bwo gutunganya ubushyuhe burashobora kugabanywamo ibyiciro bibiri: kuvura ubushyuhe bwambere no kuvura ubushyuhe bwa nyuma.

1. Kuvura ubushyuhe bwambere

Intego yo kuvura ubushyuhe bwambere nugutezimbere imashini, gukuraho imihangayiko yimbere no gutegura imiterere ya metallografiya yo kuvura ubushyuhe bwa nyuma.Uburyo bwo kuvura ubushyuhe burimo annealing, bisanzwe, gusaza, kuzimya no gutwarwa, nibindi.

(1) Kwiyunga no Kubisanzwe

Annealing hamwe nibisanzwe bikoreshwa kubushyuhe bukora.Kubyuma bya karubone hamwe nibyuma birimo karubone irenga 0.5%, kuvura annealing akenshi bigabanya kugabanya ubukana bwayo kandi byoroshye kuyikata;Kubyuma bya karubone hamwe nibyuma bya karubone bitarimo 0.5%, ubuvuzi busanzwe burafatwa kugirango wirinde gufata igikoresho mugihe cyo gutema.Bikunze gutegurwa nyuma yo gukora ubusa na mbere yo gukora nabi.

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(2) Kuvura gusaza

Kuvura gusaza bikoreshwa cyane mugukuraho imihangayiko yimbere ikorwa mubikorwa byubusa.

Kugirango wirinde akazi kenshi ko gutwara, kubice bifite ubunyangamugayo rusange, kuvura gusaza birashobora gutegurwa mbere yo kurangiza.Ariko, kubice bifite ibisobanuro bihanitse bisabwa, inzira ebyiri cyangwa nyinshi zo kuvura zishaje.Kuvura gusaza mubisanzwe ntabwo bisabwa kubice byoroshye.

(3) Imiterere

Kuzimya no kurakara bivuga ubushyuhe bwo hejuru bwo kuvura nyuma yo kuzimya.Irashobora kubona imiterere ya sorbite imwe kandi ikanategura kugabanya ihinduka mugihe cyo kuzimya hejuru no kuvura nitriding mugihe kizaza.Kubwibyo, kuzimya no gutwarwa nabyo birashobora gukoreshwa nkubuvuzi bwambere.

2. Kuvura ubushyuhe bwa nyuma

Intego yo kuvura ubushyuhe bwa nyuma ni ugutezimbere imiterere yubukorikori nko gukomera, kwambara imbaraga nimbaraga.

(1) Kuzimya

Kuzimya birimo kuzimya hejuru no kuzimya.Muri byo, kuzimya ubuso bikoreshwa cyane kubera guhindagurika kwayo, okiside na decarburisation.Byongeye kandi, kuzimya hejuru nabyo bifite ibyiza byimbaraga zo hanze, kwihanganira kwambara neza, gukomera imbere imbere no guhangana ningaruka zikomeye.

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(2) Kuzimya Carburizing

Carburizing no kuzimya birakoreshwa mubyuma bike bya karubone hamwe nicyuma gito.Ubwa mbere, ongera karubone yibice byubuso bwibice, hanyuma ubone ubukana bwinshi nyuma yo kuzimya, mugihe intangiriro ikomeza imbaraga runaka nubukomezi bukabije hamwe na plastike.

(3) Umuti wa Nitriding

Nitriding nuburyo bwo kuvura kugirango atome ya azote yinjira mu cyuma kugirango ibone urwego rwibintu birimo azote.Nitriding layer irashobora kunoza ubukana, kwambara, imbaraga zumunaniro hamwe no kwangirika kw ibice.Nkuko ubushyuhe bwo kuvura nitride buri hasi, deformasiyo ni nto, kandi nitriding igabanutse (muri rusange ntabwo irenze 0,6 ~ 0,7mm), inzira ya nitriding igomba gutegurwa bitinze bishoboka.Kugirango ugabanye deformisiyo mugihe cya nitriding, ubushyuhe bwo hejuru kugirango ukureho stress muri rusange nyuma yo gukata.


Igihe cyo kohereza: Werurwe-04-2022