Umlando omfushane wabasiki be-PDC

I-PDC, noma i-polycrystalline diamond compact, abasiki bengqephu sebeshintshe umdlalo embonini yokumba. Lawa mathuluzi okusika aguqule ubuchwepheshe bokumba ngokwandisa ukusebenza kahle nokunciphisa izindleko. Kodwa bavelaphi abasiki be-PDC, futhi baduma kanjani kangaka?

Umlando wabasiki be-PDC uhlehlela emuva ngeminyaka yo-1950 lapho amadayimane okwenziwa asungulwa okokuqala. Lamadayimane akhiqizwa ngokufaka i-graphite ngaphansi kokucindezela okukhulu namazinga okushisa, okwenza into eyayinzima kunedayimane lemvelo. Amadayimane okwenziwa asheshe athandwa ezinhlelweni zezimboni, okuhlanganisa nokubhola.

Nokho, ukusebenzisa amadayimane okwenziwa lapho kubhola kwakuyinselele. Amadayimane ayevame ukuphuka noma ahlehle ethuluzini, ehlise ukusebenza kahle kwalo futhi adinga ukushintshwa njalo. Ukuze kuxazululwe le nkinga, abacwaningi baqala ukuzama ukuhlanganisa amadayimane okwenziwa nezinye izinto, njenge-tungsten carbide, ukuze bakhe ithuluzi lokusika elihlala isikhathi eside nelisebenza kahle.

Ngawo-1970, kwasungulwa abasiki bokuqala be-PDC, abahlanganisa ungqimba lwedayimane oluhlanganiswe ne-tungsten carbide substrate. Laba basiki baqale basetshenziswa embonini yezimayini, kodwa izinzuzo zabo zasheshe zabonakala ekusetshenzisweni kokumba uwoyela negesi. Abasiki be-PDC banikeze ukubhola ngokushesha nangempumelelo kakhudlwana, ukunciphisa izindleko nokwandisa umkhiqizo.

Njengoba ubuchwepheshe buthuthuka, abasiki be-PDC bathuthuke kakhulu, ngemiklamo emisha nezinto zokwakha ezikhulisa ukuqina nokuguquguquka kwazo. Namuhla, abasiki be-PDC basetshenziswa ezinhlobonhlobo zezicelo zokumba, okuhlanganisa ukumba i-geothermal, izimayini, ukwakhiwa, nokunye.

Ukusetshenziswa kwezisiki ze-PDC kuphinde kwaholela ekuthuthukisweni kwezindlela zokumba, ezifana nokubhola okuvundlile kanye nokubhola okuqondisayo. Lawa masu enziwe angenzeka ngenxa yokwenyuka kwekhono kanye nokuqina kwabasiki be-PDC, okuvumela ukubhola okunembe kakhulu nokulawulwayo.

Sengiphetha, abasiki be-PDC banomlando ocebile kusukela ekuthuthukisweni kwamadayimane okwenziwa ngawo-1950. Ukuziphendukela kwemvelo nokuthuthuka kwabo kuholele entuthukweni enkulu kubuchwepheshe bokumba, ukuthuthukisa ukusebenza kahle, ukunciphisa izindleko, nokwandisa ububanzi bezinhlelo zokusebenza. Njengoba isidingo sokumba ngokushesha nangempumelelo siqhubeka sikhula, kuyacaca ukuthi abasiki be-PDC bazohlala beyingxenye ebalulekile yemboni yokumba.