Uyu munsi PDC imyitozo Bits Igishushanyo nka matrix ntaho ihuriye nkiya myaka mike ishize.Imbaraga zingana no kurwanya ingaruka ziyongereyeho byibuze 33%, naho gukata brazes imbaraga ziyongereyeho 80%.Muri icyo gihe, geometrie hamwe nubuhanga bwo gushyigikira inzego byateye imbere, bivamo ibicuruzwa bya matrix bikomeye kandi bitanga umusaruro.
Ibikoresho
PDC Cutters ikozwe muri karbide substrate na diyama grit.Ubushyuhe bwinshi bwa dogere 2800 hamwe numuvuduko mwinshi wa 1.000.000 psi bigize compact.Amavuta ya cobalt nayo akora nk'umusemburo wo gucumura.Cobalt ifasha guhuza karbide na diyama.
Umubare w'abakata
Mubisanzwe dukoresha uduce duto kuri bits ya PDC yoroshye nkuko buri kata ikuraho ubujyakuzimu bunini.Kubintu bikomeye, ni ngombwa gukoresha ibice byinshi kugirango wishyure ubujyakuzimu buto.
PDC Imyitozo ya bits - Ingano yo gukata
Kubintu byoroshye, mubisanzwe duhitamo ibice binini kuruta muburyo bukomeye.Mubisanzwe, urwego rusanzwe rwubunini ni kuva kuri mm 8 kugeza kuri mm 19 kuri buri muntu biti.
Mubisanzwe dusobanura icyerekezo cyo gukata icyerekezo cyerekanwa na rake yinyuma.
Ake Igice cyo gukata inyuma ni inguni yerekanwa mu maso h'icyuma kugeza ku miterere kandi gipimirwa kuri vertical.Inguni yinyuma iratandukanye, mubisanzwe, 15 ° kugeza 45 °.Ntabwo zihoraho kuri bito, cyangwa kuva kuri bito.Ubunini bw'imfuruka ya kate ya bits ya PDC bigira ingaruka kuri Penetration Rate (ROP) no gukata kwambara.Mugihe inguni ya rake yiyongera, ROP iragabanuka, ariko kurwanya kwambara biriyongera nkuko umutwaro washyizweho ubu ukwirakwira ahantu hanini cyane.Imashini ya PDC ifite uduce duto twinyuma ifata ubujyakuzimu bunini bwo gukata bityo ikarushaho gukaza umurego, ikabyara Torque ndende, kandi ishobora kwambara vuba kandi ibyago byinshi byo kwangirika.
Ake Igice cyo gukata kuruhande ni igipimo gihwanye nicyerekezo cyicyuma kuva ibumoso ugana iburyo.Inguni ya rake kuruhande ni nto.Inguni ya rake impande zifasha gusukura umwobo mu buryo bwo kuyobora ibice byerekeranye na annulus.
Igihe cyo kohereza: Nzeri-01-2023