ʻO ka pihi pahu pahu pahu he mea hana ʻeli pōhaku i hoʻohana ʻia i ka ʻeli ʻana, ka ʻeli ʻana, ka tunnel a me nā hana ʻeli kūkulu hale.Ua kapa ʻia ʻo ia he ʻāpana drill tapered a i ʻole he bit drill bit.
He ʻano conical ka bit pihi tapered, me ke anawaena liʻiliʻi ma ke kumu a me ke anawaena nui ma luna.Nui nā pihi kila paʻakikī a i ʻole nā mea hoʻokomo ma ka ʻili mua o ka bit drill, i hana ʻia me he cone a i ʻole pyramid.Hana ʻia kēia mau pihi i nā mea paʻakikī a paʻa i ka lole, maʻamau ka tungsten carbide, hiki ke kū i ka wela kiʻekiʻe a me ke kaomi.
I ka wā o ka wili ʻana, hoʻohuli ʻia ka bit drill bit tapered a hoʻokuʻu ʻia i loko o ka hoʻokumu pōhaku.ʻO ka pihi ma ka piko o ka drill bit e haki a haki i ka pōhaku i puka.ʻO ke ʻano liʻiliʻi o ka drill bit e kōkua i ka mālama ʻana i ke anawaena o ka lua, ʻoiai ʻo ke pihi e hāʻawi i ke komo ʻoi aku ka maikaʻi a me ka wikiwiki o ka wili ʻana.
Loaʻa nā ʻāpana drill pihi tapered ma nā ʻano nui a me nā ʻano e hoʻokō i nā pono wili like ʻole.Hiki ke hoʻohana pū ʻia me nā puʻupuʻu wili lima lima, nā puʻu pneumatic drilling rigs, a i ʻole hydraulic drilling rigs, a hiki ke hoʻohana ʻia e wili i nā lua i nā ʻano ʻano pōhaku like ʻole, me ka pōhaku palupalu, ka pōhaku waena, a me ka pōhaku paʻa.
Ka manawa hoʻouna: Mar-07-2023