PDC KANA PCD DRILL BIT? MUSIYANO URI PAPI?
PDC drill bit zvinoreva Polycrystalline Diamond Cutter core bit
Matsime ekutanga aive matsime emvura, makomba asina kudzika aicherwa nemaoko munzvimbo dzaisvika pamusoro pemvura, kazhinji aine madziro ematombo kana emapuranga akapoteredza madziro.
PDC inogadzirwa nekubatanidza mamwe madhaimani epolycrystalline (PCD) nechikamu checarbide liner yakagadzirwa nesimbi pakupisa kwakanyanya uye kumanikidzwa kwakanyanya.
MaPDC ndiwo mamwe emidziyo yedhaimani yakanyanya kushandiswa.
PCD inongoreva Polycrystalline Diamond: PCD inowanzogadzirwa nekunyungudutsa makristaro akawanda edhaimani rimwe chete pakupisa kwakanyanya uye kumanikidzwa kwakanyanya. PCD ine kusimba kwakanaka kwekupwanyika uye kugadzikana kwakanaka kwekupisa, uye inoshandiswa mukugadzira madhiri ekugadzira mabhora.
PDC ine zvakanakira nekuti dhaimani haipfeki zvakanyanya uye yakasimba zvakanyanya nekuda kwekusimba kwecarbide.
Tinopa maPDC drill bits akagadzirwa nemarudzi akasiyana-siyana ekucheka kwakagadzirwa kana polycrystalline diamond compacts (PDC) dzakasungirirwa pabody.
Zvicheki zvePDC zvinogadzirwa necarbide substrate nedhaimani grit. Kupisa kwakanyanya kwemadigirii 2800 uye kumanikidzwa kwakanyanya kweinenge 1,000,000 psi zvinoumba chidimbu ichi. Chiumbwa checobalt chinowanikwawo uye chinoshanda sechinhu chinobatsira pakuita kuti sintering iite. Cobalt inobatsira kubatanidza carbide nedhaimani.
Kazhinji, kucheka kukuru (19mm kusvika 25mm) kunonyanya kusimba kupfuura kucheka kudiki. Zvisinei, kunogona kuwedzera kushanduka-shanduka kwesimba remagetsi.
Zvicheki zvidiki (8mm, 10mm, 13mm uye 16mm) zvakaratidzwa kuti zvinoboora neROP yakakwira kupfuura zvicheki zvikuru mune mamwe mashandisirwo. Imwe yenzira dzakadaro idombo remabwe.
Pamusoro pezvo, zvidimbu zvidiki zvinochekwa zvidiki nepo zvidimbu zvikuru zvichichekwa zvidiki. Zvidimbu zvikuru zvinogona kukonzera matambudziko ekuchenesa maburi kana mvura yekuboorera ikasakwanisa kutakura zvidimbu zvichikwira.
(1) kana (2) Inonamira zvinyoro-nyoro uye yakapfava-Inogona kucherwa zvakanyanya senge ivhu, marl, gumbo uye jecha risina kubatana.
(3) Jecha, shale uye anhydrites dzakapfava-pakati-dzisina kusimba uye dzakasimba dzakasanganiswa.
(4) Jecha, choko, anhydrite uye shale zvine simba repakati nepakati.
(6) Yakasimba pakati nepakati - Simba rekudzvanya rakakwirira rine jecha, shale, lime uye anhydrite isina kana kuti yakapinza zvishoma.
(7) Simba rekudzvanya rakasimba-rakakwirira rine zvikamu zvakapinza zvejecha kana matombo evhu.
(8) Makumbo akaomarara zvakanyanya uye akapinza akadai se quartzite nematombo anoputika.
Chimiro chekucheka chePDC
Zvidimbu zvepdc zvakapfava zvikuru (1) kusvika pakati nepakati (4) zvine saizi imwe chete huru yekucheka kwePDC. Chimiro chekucheka chePDC chinoratidzwa nenzira inotevera:
2 - chikamu ichi chine ma cutters akawanda e19mm
3 - chikamu ichi chine zvidimbu zvekucheka zve 13 mm zvakanyanya
4 - chikamu ichi chine ma cutters akawanda e8 mm
PDC zvidimbu
Nguva yekutumira: Nyamavhuvhu-31-2022