Kune zvakasiyana-siyana zvepasi-kabhoni simbizvikamu zvemakinari zvinangwa, iyo chaiyo yekushandisa maitiro inoda yakakwira michina zvivakwa.Zvisinei, mukugadzirwa chaiko, tinowanzoona kuti kuvapo kwepasi-kabhoni simbi zvikamu zvakabatanidzwa chimiro mushure mekupisa kwekupisa.Zvakaita senge bhandi chimiro isimbi mune yakakanganisika sangano, kana yakakomba bhendi chimiro, iyo mechanic zvimiro zvesimbi inooneka anisotropy, iyo simbi pombi kudzikisa iyo inochinjika chikamu shrinkage yakawedzera kutwasuka uye yakachinjika kukanganisa simba rekuita simba nezve musiyano kaviri, purasitiki kana simbi. kuomarara kusasangana nezvinodiwa zvehunyanzvi zvechiyero.

Mune kabhoni yemukati ye 0.10% ~ 0.35% yeyakaderera kabhoni simbi inonyungudika ichidurura mukati mushure mevazhinji kuti vaende kuburikidza nepurasitiki deformation (kukunguruka, forging, thermal kuwedzera), isati yava profiles.Nekudaro, mushure mekugadzirisa yakaderera kabhoni simbi zvikamu zviri nyore kuwana pamwe neiyo deformation kutungamira, kugadzira pearlite uye ferrite nzira dzekugovera zonal, kureva kuumbwa kwebhandi chimiro.Zvikonzero zvekuumbwa kweyakaderera-kabhoni simbi zvikamu zvakasungirirwa zvinosiyana, zvakapfupikiswa zvingangoita marudzi maviri ezvikonzero:

(1) inokonzerwa nekuparadzaniswa kwebhandi chimiro, ndiko kuti, kana kuiswa kwepasi-kabhoni simbi zvikamu zvine imwe nguva yekukungurukira inclusions pamwe chete negwara rekutenderedza kure nekugovera.Kana yakatonhodzwa kune yakaderera-kabhoni simbi zvikamu Ar3 pazasi, izvi kusvibiswa kwakava eutectoid ferrite musimboti nucleation kuita eutectoid ferrite inclusions kutenderedza chizvarwa chekutanga che zonal kugovera fomu, ipapo yakasara austenite muviri kupinda pearlite, inocherechedzwa pasi pemaikorosikopu pakupisa kwekamuri, ferrite ichena. , greyish dema uye pearlite, zvichikonzera chena uye mitema mitsetse, inova yakaderera-carbon steel strip tissue deformation.

(2) bhendi dhizaini nekupisa kupisa tembiricha kunokonzerwa neisina kufanira, kuti kupisa kwemafuta epasi kabhoni simbi zvikamu kumisa kupisa tembiricha panguva yenzvimbo mbiri-chikamu (pakati peA1 neA3), ferrite munzira yekuyerera kweiyo simbi kubva kune austenite zonal kunaya, kuparara kweaustenite haisati yachekwa kuita mitsetse, kana yatonhodzwa kuenda kuA1, iyo strip austenite kuita pearlite bhendi.