Ƙunƙarar ƙarancin ƙarfi da buƙatun nama (babban iko). Ƙananan haɓaka microstructure nadauke da karfeyana nufin gabaɗaya sako-sako, tsakiya sako-sako da rarrabuwa, da microscopic (high magnification) microstructure hada da annealing microstructure na karfe, carbide network, tsiri da ruwa juyin halitta, da dai sauransu. The carbide bayani yana da wuya da gaggautsa, kuma cutarwa iri daya ne da na gaggautsa hada. Carbide na cibiyar sadarwa yana rage tasirin taurin karfe kuma yana sanya tsarin ba daidai ba, wanda ke da sauƙin lalacewa da fashe yayin kashewa. Banded carbides suna shafar ruɗewa da ƙarewar yanayin zafi da ƙarfin gajiya. Ingancin ƙarancin ƙarfi da ƙarfin ƙarfi yana da tasiri mai girma akan aiki da rayuwar sabis na mirgina bearings, don haka akwai ƙaƙƙarfan buƙatu don ƙarancin ƙarfi da ƙarfi a cikin ɗaukar matakan kayan aiki.
Matsanancin ƙaƙƙarfan buƙatu don lahani na saman da lahani na ciki. Don ɗaukar ƙarfe, lahani na saman sun haɗa da tsagewa, haɗaɗɗen slag, burrs, scarring, fata oxide, da dai sauransu, kuma lahani na ciki sun haɗa da ramukan raguwa, kumfa, fararen fata, mummunan porosity da rarrabuwa. Wadannan lahani suna da tasiri mai yawa akan aiki na bearings, ɗaukar aiki da rayuwa. A bayyane yake a cikin ƙa'idodin kayan aiki cewa ba a yarda da waɗannan lahani ba.
Maƙasudin rashin daidaituwa na carbide. A cikin ɗaukar ƙarfe, idan akwai mummunan rarrabawar carbide mara kyau, yana da sauƙi don haifar da microstructure mara daidaituwa da taurin yayin aiwatar da maganin zafi. Rashin daidaituwa microstructure na karfe yana da babban tasiri akan ƙarfin gajiyar lamba. Bugu da ƙari, rashin daidaituwa na carbide mai tsanani kuma yana da sauƙin fashe sassa masu ɗaukar nauyi yayin sanyayawar sanyi, kuma rashin daidaituwar carbide kuma zai haifar da raguwar rayuwa. Sabili da haka, a cikin ɗaukar matakan kayan aiki, akwai takamaiman buƙatu don ƙayyadaddun ƙayyadaddun ƙarfe daban-daban.
M surface decarburization zurfin bukatun. Akwai ƙaƙƙarfan ƙa'idodi akan saman decarburization Layer na ƙarfe a cikin ƙa'idodin kayan haɓaka. Idan surface decarburization Layer ya wuce wajabta ikon yinsa, na misali, kuma ba a gaba daya cire a cikin aiki tsari kafin zafi jiyya, yana da sauki don samar da quenching fasa a kan aiwatar da zafi jiyya quenching, sakamakon shi da yabo na sassa.
A cikin ma'auni na kayan ƙarfe mai ɗaukar nauyi, akwai kuma ƙaƙƙarfan buƙatu akan hanyar narkewa, abun ciki na oxygen, taurin ɓarna, karaya, abubuwan da suka rage, gwajin walƙiya, matsayin bayarwa, yin alama da sauransu.
Lokacin aikawa: Afrilu-12-2023