Ubusanzwe bizwi nka tungsten carbide ball, bivuga umupira cyangwa umupira uzunguruka bikozwe muri karbide ya sima. Isima
umupira wa karbide ufite ubukana bwinshi, kwambara birwanya, kurwanya ruswa, kurwanya kunama, kandi birashobora gukoreshwa nabi
ibidukikije.
Irashobora gusimbuza ibicuruzwa byose byumupira. Ifite imyambarire myiza yo kwambara, ikubye inshuro icumi kugeza magana iyo imipira yicyuma.
Nibicuruzwa bya poro byuma bikozwe mu ifu ya micron yo mu rwego rwa karbide ikomeye cyane (WC, TiC) nka
igice nyamukuru, cobalt (Co) cyangwa nikel (Ni), molybdenum (Mo) nkumuhuza, hanyuma ugacumura mumatanura ya vacuum cyangwa hydrogen
itanura ryo kugabanya.
Gukoresha imipira ya karbide ya sima: ibice byuzuye gukubita no kurambura, ibyuma bisobanutse, ibikoresho, metero,
imashini, imipira yumupira, gukora ikaramu, imashini zitera, pompe zamazi, ibikoresho bya mashini, kashe ya kashe, pompe feri,
gukubita umwobo, imirima ya peteroli, laboratoire ya hydrochloric, abapima ubukana, ibikoresho byo kuroba, uburemere, gushushanya, kurangiza
n'izindi nganda zo mu rwego rwo hejuru.