Kyauta ta mantaKarfe yana da waɗannan ƙa'idodin abubuwa guda uku masu zuwa ƙarƙashin yanayin.
(1) halaye halaye
A cewar girman ƙarfe, zazzabi mai zafi, halaye na canji da yanayin sanyi, dole ne tsarin ƙarfe na quensite, ƙari, ana iya samun ɗan ƙaramin abu a ciki. Dukkanin Marnensite da Ragowar Austenite suna cikin yanayin babban yanayi a zazzabi a daki, kuma suna iya canzawa zuwa tsayayyen ferric taro da ciminti mai ɗaukar nauyi.
(2) halaye na tuƙuri
Maricewar murhu da ya haifar da Carbon atoms ta hanyar da taurin kai, wanda ke ƙaruwa da maye gurbin carbers, ko abubuwan carbon. Matsakaicin tsarin mulkin, babban ƙarfi, filastik, ƙarancin tauri.
(3) Halayen damuwa
Ciki har da matsanancin damuwa da damuwa macro, tsohon yana da alaƙa da lattice murdiya na carbon yaris, musamman tare da manyan carbon yaris a cikin yanayin damuwa na ruwa; Latterarshen shine saboda bambancin zafin jiki wanda aka kafa akan sashin giciye lokacin da ya zama daban, yanayin damuwa ya bambanta, akwai matsanancin damuwa ko kuma yanayin damuwa ko damuwa na haɓaka. Idan damuwa na ciki na sassan karfe mai wuya ba a kawar dashi lokaci, zai haifar da rashin lalacewa har ma da fatattaka sassan.
A taƙaice, ko da yake aikin aikin yana da babban ƙarfin hali da ƙarfi masu ƙarfi, amma ƙwanƙwasa babba, ba ta da ƙarfi, don haka dole ne a tashe shi sosai. Gabaɗaya aikin sihiri shine tsari mai zuwa na ƙarfe na ƙarfe, shi ne na ƙarshe tsari na tsarin zubar da zafi, yana ba da aikin sosai bayan buƙatar aikin.
Zuciya shine aiwatar da dumama mai tsananin ƙarfi a kan wani zazzabi da ke ƙasa AC1, yana kiyaye shi don wani lokaci, sannan sanyawar shi zuwa zazzabi a ɗakin. Dalilai na mahimmanci sune:
(1) Daidai daidaita wuya da ƙarfin ƙarfe, inganta ta da tauri na ƙarfe, saboda aikin ya cika bukatun aikace-aikacen;
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Za'a iya rage damuwa na ciki na cinikin na ciki na kayan aikin ko kuma cire shi don rage nakasassu da hana fatattaka.