Phetoho ea li-cutters tsa PDC

Lefats'eng la ho cheka, phetoho ea li-cutters tsa PDC (polycrystalline diamond compact) e fetohile phetoho bakeng sa indasteri ea oli le khase. Ho theosa le lilemo, li-cutters tsa PDC li bile le liphetoho tse kholo moralong le ts'ebetsong, ho ntlafatsa ts'ebetso ea tsona le ho lelefatsa bophelo ba tsona.

Qalong, li-cutters tsa PDC li ne li etselitsoe ho fana ka mefuta e meng e tšoarellang le e sebetsang ho feta ea setso sa tungsten carbide. Li ile tsa hlahisoa ka lekhetlo la pele lilemong tsa bo-1970 'me tsa tsebahala ka potlako ka lebaka la bokhoni ba tsona ba ho mamella mocheso o phahameng le likhatello lits'ebetsong tse tebileng tsa ho cheka. Leha ho le joalo, li-cutters tsa pele tsa PDC li ne li lekanyelitsoe ke tlhaho ea tsona e brittle mme li ne li tloaetse ho phunya le ho robeha.

Ha theknoloji e ntse e tsoela pele, bahlahisi ba ile ba qala ho leka lisebelisoa tse ncha le meralo ho ntlafatsa ts'ebetso ea li-cutters tsa PDC. E 'ngoe ea lintlafatso tsa bohlokoahali e bile ho hlahisoa ha li-cutters tsa polycrystalline diamond (TSP) tse tsitsitseng. Li-cutters tsena li ne li e-na le lera le matla la daemane 'me li ne li khona ho mamella mocheso le likhatello tse phahameng ho feta li-cutters tsa setso tsa PDC.

Katleho e 'ngoe e kholo ho theknoloji ea PDC cutter e bile ho hlahisoa ha li-cutters tse nyalisitsoeng. Li-cutters tsena li ile tsa kopanya ho tšoarella ha PDC le ho tiea ha tungsten carbide ho etsa sesebelisoa sa ho itšeha se ka sebetsanang le lits'ebetso tse thata ka ho fetisisa tsa ho cheka.

Lilemong tsa morao tjena, tsoelo-pele ea mekhoa ea tlhahiso e lumelletse ho theoa ha li-geometri tse rarahaneng ho li-cutters tsa PDC. Sena se lebisitse ho nts'etsopele ea li-cutters tse khethehileng tse etselitsoeng lisebelisoa tse khethehileng tsa ho phunya, tse kang ho phunya ka tataiso le ho cheka ka khatello e phahameng / mocheso o phahameng.

Phetoho ea li-cutters tsa PDC e bile le phello e kholo indastering ea oli le khase. Ka bokhoni ba bona ba ho mamella maemo a feteletseng le ho tšoarella nako e telele ho feta lisebelisoa tsa ho itšeha tsa setso, li-cutters tsa PDC li ekelitse ts'ebetso ea ho cheka le ho fokotsa nako. Ha thekenoloji ea ho cheka e ntse e tsoela pele, ho ka etsahala hore re bone tsoelo-pele e eketsehileng mabapi le moralo le ts'ebetso ea PDC cutter.

Qetellong, li-cutters tsa PDC li tsamaile hole ho tloha ha li hlahisoa ka bo-1970. Ho tloha matsatsing a bona a pele e le mokhoa o tšoarellang oa ho kenya li-tungsten carbide, ho nts'etsopele ea li-cutters tse khethehileng tse etselitsoeng lits'ebetso tse khethehileng tsa ho cheka, phetoho ea li-cutters tsa PDC e bile ntho e makatsang. Ha indasteri ea oli le khase e ntse e tsoela pele ho fetoha, li-cutters tsa PDC ha ho pelaelo hore li tla bapala karolo ea bohlokoa ho tsamaiseng katleho le tlhahiso mesebetsing ea ho cheka.