⑴ Ukucima ubuso:
Ingabe ingaphezulu lensimbi ngokushisa okusheshayo kuya ekushiseni okubalulekile ngenhla, kodwa ukushisa akuzange kube nesikhathi sokusakazeka kumgogodla ngaphambi kokupholisa okusheshayo, ukuze ungqimba olungaphezulu lungacinywa kuzicubu ze-martensitic, futhi umnyombo awuzange udlule ukuguqulwa kwesigaba, esiqaphela ukuqina kobuso kanye nomgogodla ungashintshi. Ifanele i-medium carbon steel.

⑵ Ukwelashwa kokushisa ngamakhemikhali:
Isho i-athomu ye-chemical element, enekhono lokusabalaliswa kwe-athomu ekushiseni okuphezulu, ibe ungqimba olungaphezulu lwe-workpiece, ukuguqula ukwakheka kwamakhemikhali nokwakheka kongqimba olungaphezulu lwe-workpiece, ukuze kuzuzwe ungqimba olungaphezulu lwensimbi olunezidingo ezithile zenhlangano kanye nokusebenza kwenqubo yokwelapha ukushisa. Ngokuya ngezinhlobo zezinto zokungeniswa, ukwelashwa kokushisa kwamakhemikhali kungahlukaniswa kube yi-carburizing, nitriding, cyanidation kanye nomthetho wokungena kwensimbi.
I-Carburizing: I-Carburizing inqubo lapho ama-athomu ekhabhoni angena ongqimbeni olungaphezulu lwensimbi. Ingabe futhi ukwenza low carbon steel workpiece nge high carbon steel surface ungqimba, bese ngemva kokucisha futhi lokushisa tempering aphansi, ukuze ungqimba ebusweni workpiece has high ubulukhuni futhi bagqoke ukumelana, futhi ingxenye emaphakathi workpiece namanje silondoloze ukuqina kanye plasticity of ongaphakeme carbon steel.
I-Nitriding, noma i-nitriding, inqubo lapho ungqimba olungaphezulu lwensimbi lungena khona ama-athomu e-nitrogen. Inhloso ukuthuthukisa ubulukhuni nokumelana nokugqoka kongqimba olungaphezulu nokuthuthukisa amandla okukhathala nokumelana nokugqwala. Njengamanje, indlela ye-gesi nitriding isetshenziswa ekukhiqizeni.
I-Cyanidation, eyaziwa nangokuthi i-carbonitriding, ukungena kanyekanye kwe-carbon ne-athomu ye-nitrogen ensimbi. Yenza ubuso bensimbi ye-carburizing kanye nezici ze-nitriding.
Ukungena kwensimbi: kubhekisela ekungeneni kwama-athomu ensimbi ongqimbeni olungaphezulu lwensimbi. Kuwukwenza ungqimba olungaphezulu lwe-alloying yensimbi, ukuze wenze indawo yokusebenza ibe nensimbi ethile ye-alloy, izici ezikhethekile zensimbi, njengokumelana nokushisa, ukumelana nokugqoka, ukumelana ne-oxidation, ukumelana nokugqwala, njll. Evame ukusetshenziswa ekukhiqizeni i-aluminizing, i-chromizing, i-boronizing, i-silicon nokunye.