Munyika yekuchera, shanduko yePDC (polycrystalline diamond compact) cutters yave shanduko-mutambo kuindasitiri yemafuta negasi. Kwemakore, vacheki vePDC vakaita shanduko huru mukugadzira nekushanda, vachivandudza mashandiro avo uye nekuwedzera hupenyu hwavo.
Pakutanga, PDC cutters yakagadzirirwa kupa imwe yakasimba uye inoshanda kune yechinyakare tungsten carbide inoisa. Vakatanga kuunzwa kuma1970 uye vakakurumidza kuita mukurumbira nekuda kwekugona kwavo kutsungirira tembiricha yepamusoro uye kumanikidza mukuchera kwakadzika zvikumbiro. Nekudaro, vekutanga vePDC vanocheka vakaganhurirwa nehunhu hwavo husina kusimba uye vaiwanzo cheka nekupwanya.
Sezvo tekinoroji yakakwira, vagadziri vakatanga kuyedza nezvinhu zvitsva uye magadzirirwo ekuvandudza mashandiro ePDC cutters. Chimwe chezvinyanya kukosha ndechekuunzwa kwevacheki vepolycrystalline diamond (TSP) vanocheka. Aya macheki airatidza dhaimondi rakasimba uye aikwanisa kutsungirira tembiricha yakakwira uye kumanikidza kupfuura echinyakare PDC cutters.
Imwe budiriro huru muPDC cutter tekinoroji yaive kuunzwa kwemahybrid cutters. Aya macheki akabatanidza kusimba kwePDC nekuoma kwe tungsten carbide kugadzira chishandiso chekucheka chinogona kubata kunyangwe zvikumbiro zvinonetsa zvekuchera.
Mumakore achangopfuura, kufambira mberi kwemaitiro ekugadzira kwakabvumira kugadzirwa kweakaoma geometries muPDC cutters. Izvi zvakakonzera kugadzirwa kweakasarudzika ekucheka akagadzirirwa chaiwo ekuchera maapplication, senge nzira yekuchera uye yakakwirira-kudzvanywa / yakakwirira-tembiricha kuchera.
Iko shanduko yePDC cutters yakave nemhedzisiro yakakura paindasitiri yemafuta negesi. Nekugona kwavo kumirisana nemamiriro akanyanya uye kugara kwenguva refu kupfuura echinyakare maturusi ekucheka, PDC cutters vakawedzera kudhirowa uye kuderedzwa nguva. Sezvo tekinoroji yekuchera ichienderera mberi, zvingangoita kuti tichaona zvimwe zvigadziriso muPDC cutter dhizaini nekushanda.
Mukupedzisa, vacheki vePDC vauya kure kubva pavakaunzwa muma1970s. Kubva pamazuva avo ekutanga seimwe nzira yakasimba kune tungsten carbide inoisa, kune kugadzirwa kweakasarudzika ekucheka akagadzirirwa chaiwo ekuchera mashandisirwo, shanduko yePDC cutters yave ipfupi zvinoshamisa. Sezvo indasitiri yeoiri negasi iri kuramba ichishanduka, PDC cutters pasina mubvunzo ichaita basa rakakosha mukufambisa zvakanaka uye kubudirira mumabasa ekuchera.
Nguva yekutumira: Mar-04-2023
