Intsimbi yeebheringi zebhola eziqhelekileyo enomxholo wekhabhoni kunye ne-chromium yakhethwa yaza yaqiniswa ukuze imelane noxinzelelo olukhulu phakathi kwento eqengqelekayo kunye neeringi zeebheringi.
Ukufaka i-carbonitriding kwizangqa zangaphakathi nezangaphandle yinkqubo esisiseko yokuqinisa kubaboneleli abaninzi beebheringi zebhola ze-TPI. Ngolu nyango lukhethekileyo lobushushu, ubunzima kumphezulu wendlela yokugijima buyanda; nto leyo enciphisa ukuguguleka ngokufanelekileyo.
Intsimbi ecocekileyo kakhulu iyafumaneka kwezinye zeemveliso zeebheringi zebhola eziqhelekileyo zeTPI ngoku, ukumelana nokuguguleka okuphezulu kufunyanwa ngokufanelekileyo. Ekubeni ukudinwa kokunxibelelana kudla ngokubangelwa zizinto eziqinileyo ezingezizo ezesinyithi, iibheringi kule mihla zifuna amanqanaba akhethekileyo okucoceka.