Imikhiqizo Yethu
Indandatho Yokugaya Yokugaya
Izinzuzo zobuchwepheshe
Ukumelana nokugqoka kwezinsimbi zokugaya kubalulekile.Ngokuvamile, abantu abaningi bacabanga ukuthi uma umkhiqizo unzima, ugqoke kakhulu, ngakho-ke, izisekelo eziningi zikhangisa ukuthi ukukhishwa kwazo kuqukethe i-chromium, inani lifinyelela ku-30%, futhi ubulukhuni be-HRC bufinyelela ku-63-65.Kodwa-ke, lapho ukusatshalaliswa kuhlakazeke kakhulu, makhulu amathuba okwenza izimbobo ezincane kanye nama-micro-cracks kusixhumi esibonakalayo phakathi kwe-matrix ne-carbides, futhi amathuba okuphuka azoba Makhulu.Futhi lapho into iqina, kuba nzima ukuyisika.Ngakho-ke, ukwenza indandatho yokugaya engagqoki futhi eqinile akulula.Iringi yokugaya ikakhulukazi kusetshenziswa izinhlobo ezimbili ezilandelayo zezinto.
65Mn (65 manganese): le nto ingathuthukisa kakhulu ukuqina kwendandatho yokugaya.Inezici zokuqina okuphezulu, ukumelana okuhle kakhulu kokugqoka kanye nokumelana okuhle kwamagnetism, isetshenziswa ikakhulukazi emkhakheni wokucubungula impushana lapho umkhiqizo udinga ukususa insimbi.Ukumelana nokugqoka kanye nokuqina kungathuthukiswa kakhulu ngokwelashwa kokushisa okujwayelekile nokushisa.
I-Mn13 (13 manganese): ukuqina kokulingwa kweringithoni yokugaya nge-Mn13 kuthuthukisiwe uma kuqhathaniswa no-65Mn.Ama-castings alo mkhiqizo aphathwa ngokuqina kwamanzi ngemva kokuthululwa, ama-castings anamandla aphezulu, ukuqina, ipulasitiki kanye nezakhiwo ezingezona kazibuthe ngemva kokuqina kwamanzi, okwenza indandatho yokugaya ihlale isikhathi eside.Lapho ingaphansi komthelela onzima kanye nokuguqulwa kwengcindezi eqinile ngesikhathi sokugijima, indawo engaphezulu izobhekana nomsebenzi onzima futhi yakhe i-martensite, ngaleyo ndlela yakha ungqimba olungaphezulu olungagugi kakhulu, ungqimba lwangaphakathi lugcina ukuqina okuhle kakhulu, noma ngabe kugqokwe endaweni encane kakhulu, i-roller yokugaya isengakwazi ukumelana nemithwalo emikhulu yokushaqeka.
