Magadzirirwo evharuvhu esando yeDTH anopa kushanda kwakavimbika, kushandiswa kwemhepo kwakaderera, kugadzirisa kuri nyore uye kuvakazve kusingadhuri.Mufananidzo nerubatsiro rweCaterpillar.
DTH nyundo ine 6 inches muhupamhi uye ndiyo yekutanga kuiswa muDTH chigadzirwa mutsara.Maererano nekambani, dhizaini yayo yevhavha inopa kushanda kwakavimbika, kushandiswa kwemhepo kuderera, kugadzirisa nyore uye kuvakazve kunodhura.Kuwedzera, kugadzirwa kwepiston kunopa hupenyu hurefu uye hunobudirira hwekufambisa simba.
Iyo nyundo inogona kushanda nemhepo yakamanikidzwa yemhepo kusvika ku 500 psi. Iyi yakawedzera kudzvinyirira shure, inosanganiswa nemhepo inopindirana inodiwa, inobudisa kuputika kwakawanda paminiti, zvichiita kuti kukurumidza kupinda mukati.
Inopawo zvibooreso zvekuchera pasi-the-hole.Mabhiti ave kuwanikwa mune akati wandei magadzirirwo (6.75 inches) mune mwero uye anorema-basa shanduro kuti aenderane mabits kune rock zvinhu uye basa rinodiwa.
Bit sarudzo dzinosanganisira zvakasiyana-siyana zve carbide shapes (spherical, ballistic) uye maumbirwo echiso (concave, flat, convex), uye akagadziridzwa pakukwirira kupfeka kusagadzikana uye kuvandudzwa kwedombo. kupa kupinza kwakasiyana.
Nguva yekutumira: May-24-2022