Cobalt drill bits, tharollo bakeng sa lisebelisoa tsa mocheso o phahameng le ho cheka litšepe tse thata. E ekelitse boemo ba cobalt ho tšepe e phahameng ka potlako, e etselitsoe ka ho khetheha ho mocheso o phahameng le ho sebetsa hantle ha ho cheka tšepe e sa hloekang le lisebelisoa tse ling tse thata.
Likarolo tsa rona tsa "cobalt drill" li ikhethile ka lebaka la ho tšoarella le ts'ebetso ea tsona. Ho fapana le li-drill tse tloaelehileng tsa hss, li-drill tsa cobalt li tšoarella nako e telele 'me li khona ho mamella mesebetsi e boima ea ho cheka. Ba phunya masoba kapele le ka bokhabane, ba e etsa khetho e nepahetseng bakeng sa litsebi le ba chesehelang DIY ka ho tšoana.
E 'ngoe ea likarolo tsa bohlokoa tsa li-drill tsa rona tsa cobalt ke ho hanyetsa mocheso, ho li lumella ho sebetsa nako e telele ntle le ho chesa kapa ho lahleheloa ke katleho. Sena se etsa hore e be tse loketseng bakeng sa lits'ebetso tse hlokang ho cheka ho tsoelang pele, ho netefatsa ts'ebetso e sa sitisoeng le e sebetsang hantle.
Fektheri ea rona e fana ka likotoana tse peli tse fapaneng tsa ho phunya cobalt ho fihlela litlhoko tse fapaneng tsa ho cheka. Lisebelisoa tsa tšepe tsa M35 li na le cobalt ea 5% 'me li ngotsoe "hss co" holim'a shank ea ho cheka. Lisebelisoa tsena tsa ho cheka li fana ka matla a holimo le ho tiea bakeng sa mefuta e fapaneng ea lisebelisoa tsa ho cheka.
Bakeng sa ts'ebetso e ntle, re boetse re fana ka lisebelisoa tsa boleng bo holimo tsa tšepe tsa M42, tse nang le 8% ea cobalt. E tšoailoe "HSS CO8" holim'a shank, likotoana tsena tsa ho cheka li etselitsoe ho fana ka ts'ebetso e ke keng ea bapisoa ea ho cheka le bophelo bo bolelele. Li etselitsoe ho sebetsana le mesebetsi e thata ka ho fetisisa ea ho cheka habonolo, e leng se etsang hore e be khetho ea ho qetela bakeng sa litsebi tse batlang ts'ebetso e ntle ka ho fetisisa.
Tsetela ho li-drill tsa rona tsa cobalt 'me u bone phapang ea ts'ebetso le ho tšoarella. Ak'u lumelise mosebetsi oa ho cheka butle, o sa sebetseng hantle 'me u amohele nako e ncha ea litharollo tsa ho cheka tse potlakileng, tse nepahetseng le tse tšoarellang halelele. Ka lisebelisoa tsa rona tsa ho cheka li-cobalt, o ka sebetsana le phephetso efe kapa efe ea ho cheka ka boits'epo mme oa fumana litholoana tse ntle nako le nako.
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