I-PDC, noma i-polycrystalline diamond compact, ama-cutters asephenduke umguquki womdlalo embonini yokumba. Lawa mathuluzi okusika aguqule ubuchwepheshe bokumba ngokwandisa ukusebenza kahle kanye nokunciphisa izindleko. Kepha abasiki be-PDC bavelaphi, futhi bathandwa kanjani kangaka?
Umlando we-PDC cutters usuka emuva ngawo-1950s lapho kuqala amadayimane okwenziwa ekuqaleni. Lawa madayimane akhiqizwa ngokufaka i-graphite ezingcindezi eziphakeme kanye namazinga okushisa, adala impahla eyayinzima kunedayimane lemvelo. Amadayimane okwenziwa ngokushesha athandwa ezihlotsheni zezimboni, kubandakanya nokumba.
Kodwa-ke, ukusebenzisa amadayimane okwenziwa ekushayweni kwakuyinselele. Amadayimane ajwayele ukuphula noma ahlanze ethuluzi, anciphise ukusebenza kahle kwawo futhi afune ukushintshwa njalo. Ukubhekana nale nkinga, abacwaningi baqala ukuzama ukuhlanganisa amadayimane okwenziwa ngezinye izinto, njengeTungsten Carbide, ukudala ithuluzi elihlala isikhathi eside futhi elisebenzayo.
Ngawo-1970s, kwakhiwa ama-PDC okuqala, aqukethe ungqimba lwedayimane oluboshwe eTungsten Cartrate Substrate. Lezi zinto ezisikiwe zasetshenziswa ekuqaleni embonini yezimayini, kepha izinzuzo zazo zibonakala ngokushesha ezisetshenzisweni zamafutha kanye negesi. Abasiki be-PDC banikela ngokushayela ngokushesha nokusebenza kahle, ukunciphisa izindleko kanye nokukhiqiza okwandayo.
Njengoba ubuchwepheshe bathuthukile, abasiki be-PDC bathuthuka kakhulu, ngemiklamo emisha nezinto zokwakha zandisa ukuqina kwazo nokuguquguquka kwazo. Namuhla, abasiki be-PDC basetshenziswa ezinhlobonhlobo zezicelo zokumba, kufaka phakathi ukumba kwe-geneothermal, izimayini, zokwakha, nokuningi.
Ukusetshenziswa kwama-PDC cutters kuholele nasekuthuthukisweni kwamasu wokumba, njengokushayela okuvundlile nokumba okuqondayo. Lezi zinqubo zenziwa zenziwe ngokusebenza kahle nokuqina kwabasiki be-PDC, okuvumela ukumba okunembile nokulawulwa okuthe xaxa.
Ekuphetheni, abasiki be-PDC banomlando ocebile othandana nokuthuthukiswa kwamadayimane okwenziwa ngawo-1950s. Ukuziphendukela kwemvelo kwabo kanye nentuthuko yabo kuholele ekuthuthukisweni okuphezulu kubuchwepheshe bokumba, kuthuthukisa ukusebenza kahle, ukunciphisa izindleko, nokwandisa uhla lwezicelo. Njengokufunwa kokushayela ngokushesha nokusebenza kahle kuyaqhubeka ukukhula, kuyacaca ukuthi abasiki be-PDC bazohlala beyingxenye ebalulekile embonini yokumba.
Isikhathi sePosi: Mar-04-2023