PDC Bit Cutter Chaw tsim tshuaj paus

PDC khoom cutter yog hu ua Polycrystalline Pob Zeb Diamond Compact Cutter.Cov khoom siv hluavtaws no yog 90-95% pob zeb diamond ntshiab thiab yog tsim los rau hauv compacts uas tau teem rau hauv lub cev ntawm me ntsis. Qhov kev sib txhuam siab kub tsim nrog cov khoom no ua rau cov pob zeb diamond polycrystalline tawg thiab qhov no ua rau kev txhim kho ntawm Thermally Stable Polycrystalline Pob Zeb Diamond - TSP Pob Zeb Diamond.

PCD (Polycrystalline Pob Zeb Diamond) yog tsim nyob rau hauv ob-theem kub kub, high-pressure txheej txheem. Thawj theem ntawm cov txheej txheem yog tsim cov pob zeb diamond siv lead ua los ntawm kev nthuav tawm graphite, nyob rau hauv lub xub ntiag ntawm Cobalt, npib tsib xee, thiab hlau los yog manganese catalyst / kev daws teeb meem, kom siab tshaj 600,000 psi. Ntawm cov xwm txheej no pob zeb diamond crystals sai sai. Txawm li cas los xij, thaum lub sijhawm hloov cov graphite rau pob zeb diamond, muaj qhov ntim ntim, uas ua rau cov catalyst / cov kuab tshuaj ntws los ntawm cov khoom siv lead ua, tiv thaiv intercrystalline bonding thiab yog li ntawd tsuas yog pob zeb diamond siv lead ua hmoov yog tsim los ntawm ib feem ntawm cov txheej txheem no.

Hauv theem thib ob ntawm cov txheej txheem, PCD dawb paug lossis 'cutter' yog tsim los ntawm cov kua theem sintering. Cov pob zeb diamond hmoov tsim nyob rau hauv thawj theem ntawm cov txheej txheem yog sib tov tag nrho nrog catalyst / binder thiab raug kub tshaj 1400 ℃ thiab pressures ntawm 750,000 psi. Lub hauv paus ntsiab lus rau sintering yog kom yaj cov pob zeb diamond muaju ntawm lawv cov npoo, cov ces kaum, thiab cov ntsiab lus ntawm kev kub siab tshwm sim los ntawm qhov taw tes lossis ntug kev sib cuag. Qhov no yog ua raws li kev loj hlob ntawm epitaxial ntawm pob zeb diamond ntawm lub ntsej muag thiab ntawm qhov chaw ntawm lub kaum sab xis qis ntawm cov muaju. Cov txheej txheem regrowth no tsim muaj tseeb pob zeb diamond-rau-pob zeb diamond bonds tsis suav cov kua binder los ntawm thaj tsam daim ntawv cog lus. Lub binder tsim ib tug ntau los yog tsawg nruam network ntawm pores, co-existing nrog ib tug nruam network ntawm lub pob zeb diamond. Hom pob zeb diamond concentrations hauv PCD yog 90-97 vol.%.

Yog hais tias ib tug xav tau ib tug composite compact nyob rau hauv uas PCD yog bonded tshuaj mus rau ib tug tungsten carbide substrate, ib co los yog tag nrho cov binder rau PCD tej zaum yuav tau los ntawm cov nyob ib sab tungsten carbide substrate los ntawm melting thiab extruding cobalt binder los ntawm tungsten carbide.

Yog tias koj txaus siab rau PDC cutters thiab xav tau cov ntaub ntawv ntau ntxiv thiab cov ntsiab lus, koj tuaj yeem tiv tauj peb hauv xov tooj lossis xa ntawv ntawm sab laug, lossis xa US MAIL rau hauv qab ntawm nplooj ntawv.