Momwe mungasankhire odulidwa olondola a PDC?

Masiku ano PDC kubowola Bits Design ngati matrix sikufanana pang'ono ndi zaka zingapo zapitazo. Kulimba kwamphamvu komanso kukana kwamphamvu kwawonjezeka ndi 33%, ndipo mphamvu zodulira zawonjezeka ndi ≈80%. Nthawi yomweyo, ma geometri ndi ukadaulo wazothandizira zidayenda bwino, zomwe zidapangitsa kuti pakhale zinthu zolimba komanso zopanga matrix.
Zida Zodula
PDC Cutters amapangidwa kuchokera ku carbide substrate ndi diamondi grit. Kutentha kwakukulu kozungulira madigiri a 2800 ndi kuthamanga kwakukulu kwa pafupifupi 1,000,000 psi kumapanga compact. Cobalt alloy imagwiranso ntchito ngati chothandizira pakupanga sintering. Cobalt imathandizira kugwirizana kwa carbide ndi diamondi.
Chiwerengero cha Ocheka
Nthawi zambiri timagwiritsa ntchito ocheka ochepa pazitsulo zofewa za PDC pamene wodula aliyense amachotsa kudula kwakukulu. Kwa mapangidwe olimba, ndikofunikira kugwiritsa ntchito zodulira zambiri kubwezera kuzama kwakung'ono kwa kudula.

PDC Drill Bits - Kukula kwa Cutters
Kwa mapangidwe ofewa, timasankha zodula zazikulu kuposa zolimba. Nthawi zambiri, kukula kwake kumayambira 8 mm mpaka 19 mm pa chilichonse.

Nthawi zambiri timafotokoza mawonekedwe a chotchinga chodulira ndi kangaude yakumbuyo ndi ma angles am'mbali.
● Wodula m'mbuyo mwake ndi ngodya yomwe imaperekedwa ndi nkhope ya wodula kuti apange mapangidwe ndipo amayezedwa kuchokera kumtunda. Kumbuyo kwake kumasiyana pakati, nthawi zambiri, 15 ° mpaka 45 °. Iwo sali okhazikika kudutsa pang'ono, kapena kuchokera pang'ono kupita pang'ono. Kukula kwa ma cutter rake angle a PDC drill bits kumakhudza Penetration Rate (ROP) ndi kukana kwa cutter kuvala. Pamene ngodya ya rake ikukwera, ROP imachepa, koma kukana kuvala kumawonjezeka pamene katundu wogwiritsidwa ntchito tsopano akufalikira kudera lalikulu kwambiri. Odula a PDC okhala ndi zingwe zazing'ono zakumbuyo amadula mozama kwambiri motero amakhala ankhanza kwambiri, amapanga ma Torque apamwamba, ndipo amatha kuvala mwachangu komanso pachiwopsezo chowonongeka.

● Chodula m'mbali mwake ndi muyezo wofanana ndi momwe choduliracho chimayendera kuchokera kumanzere kupita kumanja. Nthawi zambiri makona am'mbali amakhala aang'ono. Mbali yake yotchinga imathandizira kuyeretsa dzenje polozera macheka odulidwa ku annulus.