Kusintha kwa PDC cutters

Padziko lakukumba, kusinthika kwa odula a PDC (polycrystalline diamond compact) kwasintha kwambiri pamakampani amafuta ndi gasi. Kwa zaka zambiri, ocheka a PDC asintha kwambiri mapangidwe ndi magwiridwe antchito, kuwongolera magwiridwe antchito awo ndikuwonjezera moyo wawo.

Poyambirira, odula a PDC adapangidwa kuti azipereka njira yokhazikika komanso yothandiza kuposa zoyika zachikhalidwe za tungsten carbide. Anayambitsidwa koyamba m'zaka za m'ma 1970 ndipo adatchuka mwachangu chifukwa chotha kupirira kutentha kwambiri komanso kupanikizika pakubowola mozama. Komabe, odula a PDC oyambilira anali ochepa chifukwa cha kufooka kwawo ndipo sachedwa kusweka ndi kusweka.

Pamene ukadaulo ukupita patsogolo, opanga adayamba kuyesa zida zatsopano ndi mapangidwe kuti apititse patsogolo magwiridwe antchito a odula a PDC. Chimodzi mwazofunikira kwambiri chinali kukhazikitsidwa kwa ocheka a diamondi okhazikika a polycrystalline (TSP). Odula awa anali ndi diamondi yolimba kwambiri ndipo amatha kupirira kutentha ndi kupanikizika kwambiri kuposa odula a PDC.

Kupambana kwina kwakukulu muukadaulo wa PDC cutter kunali kukhazikitsidwa kwa ma hybrid cutters. Odula awa adaphatikiza kulimba kwa PDC ndi kulimba kwa tungsten carbide kuti apange chida chodulira chomwe chitha kuthana ndi zovuta kwambiri pakubowola.

M'zaka zaposachedwa, kupita patsogolo kwaukadaulo wopanga kwalola kuti pakhale ma geometries ovuta mu odula a PDC. Izi zapangitsa kuti pakhale makina odulira apadera omwe amapangidwa kuti azigwiritsira ntchito pobowola, monga kubowola kolunjika komanso kubowola kwamphamvu / kutentha kwambiri.

Kusintha kwa ocheka a PDC kwakhudza kwambiri makampani amafuta ndi gasi. Ndi kuthekera kwawo kupirira mikhalidwe yoipitsitsa komanso yokhalitsa kuposa zida zodulira zachikhalidwe, ocheka a PDC awonjezera kubowola bwino ndikuchepetsa nthawi. Pamene ukadaulo wakubowola ukupitilirabe patsogolo, ndizotheka kuti tiwonanso zitukuko zina zamapangidwe ndi magwiridwe antchito a PDC cutter.

Pomaliza, ocheka a PDC abwera patali kuyambira pomwe adayambitsidwa mu 1970s. Kuyambira masiku awo oyambilira ngati njira yokhazikika yoyika ma tungsten carbide, mpaka pakupanga zida zapadera zodulira zomwe zimapangidwira pobowola, kusinthika kwa odula a PDC sikunakhale kodabwitsa. Pamene makampani amafuta ndi gasi akupitilirabe, ocheka a PDC mosakayikira atenga gawo lalikulu pakuyendetsa bwino komanso kupanga bwino pakubowola.