I nā papahana ʻeli ʻana i lalo o ka lua me ke kaomi kiʻekiʻe, i mea e hoʻokō ai i ka pahuhopu o ka ʻeli ʻana me ka wikiwiki a me ka maikaʻi, pono e koho i nā ʻāpana ʻeli ʻana i lalo o ka lua me ke kūlana kiʻekiʻe a me ka maikaʻi, ʻo ia hoʻi, e koho i nā ʻāpana ʻeli ʻana i lalo o ka lua me nā ʻano like ʻole e like me nā ʻano ʻeli like ʻole a me nā ʻano pōhaku. He nui nā mea e like me ke ʻano o ka ʻaoʻao o ka ʻāpana ʻeli, ke ʻano o ke awāwa hoʻokuʻu pauka, ke ʻano a me ka nui o ka niho carbide, ka paʻakikī o ke kino o ka ʻāpana ʻeli, a me nā mea ʻē aʻe e pili pono ana i ka wikiwiki o ka ʻeli ʻana i ka pōhaku, ka maikaʻi o ka ʻeli ʻana, ka pololei o ka puka pahū, ke ola o ka ʻāpana ʻeli a me ka pono o ka hana. No laila, he mea nui loa ke koho ʻana i kahi ʻāpana ʻeli kūpono i nā papahana ʻeli pōhaku.
No nā ʻāpana wili i lalo o ka lua me ke kaomi kiʻekiʻe (nā ʻāpana wili), ʻehā mau ʻano hoʻolālā maka hope nui i hoʻohana ʻia i kēia manawa, ʻo ia hoʻi: ke ʻano convex maka hope, ka palahalaha maka hope, ke ʻano concave maka hope a me ke ʻano kikowaena concave hohonu maka hope. Hoʻohana nui ʻo Carbide i nā niho pōpō, nā niho puna a i ʻole nā niho pōpō a me nā niho puna no ka hoʻonohonoho niho.
1. ʻAno helehelena hopena convex: Hiki i ka ʻano ʻeli wili kiʻekiʻe-kaomi i lalo o ka lua (drill bit) ke mālama i ka wikiwiki o ka ʻeli ʻana i ka pōhaku i ka wā e ʻeli ana i nā pōhaku abrasive waena-paʻakikī a paʻakikī, akā ʻaʻole maikaʻi ka pololei o ka ʻeli ʻana, a ʻaʻole kūpono no nā papahana ʻeli pōhaku me nā koi kiʻekiʻe no ka pololei o ka blasthole.
2. ʻAno ʻaoʻao pālahalaha: ʻO ke ʻano ʻaoʻao pālahalaha o ka ʻili wili i lalo o ka lua he ikaika a paʻa hoʻi, a kūpono ia no ka ʻeli ʻana i nā pōhaku paʻakikī a paʻakikī loa. He kūpono hoʻi ia no ka ʻeli ʻana i ka pōhaku waena-paʻakikī a me ka pōhaku palupalu me nā koi haʻahaʻa no ka pololei o ka puka pahū.
3. ʻAno helehelena ʻaoʻao concave: ʻO ka ʻano ʻaoʻao ʻaoʻao concave o ka ʻōuli wili kiʻekiʻe-kaomi i lalo o ka lua (drill bit) he ʻāpana concave conical ma ka ʻaoʻao hope, ka mea e hana ai i ka ʻōuli wili i kahi hopena nucleation iki i ka wā o ke kaʻina hana wili pōhaku, mālama i ka hana kikowaena o ka ʻōuli wili, a he pololei maikaʻi ka puka pahū i wili ʻia. Eia kekahi, ʻoi aku ka maikaʻi o ka hopena wehe lepo o kēia ʻōuli wili a me ka wikiwiki o ka wili ʻana. He ʻōuli wili kaomi kiʻekiʻe ia i hoʻohana nui ʻia ma ka mākeke i kēia manawa.
4. ʻAno kikowaena concave hohonu o ka ʻaoʻao hopena: ʻO ka ʻāpana wili hohonu o ke kikowaena concave hohonu o ka ʻaoʻao hope me ke kaomi makani kiʻekiʻe i lalo o ka lua (drill bit) he ʻāpana kikowaena concave hohonu ma waenakonu o ka ʻaoʻao hope, kahi i hoʻohana ʻia no ka nucleation i ke kaʻina hana wili pōhaku. Hiki i ka wili ʻana i nā lua hohonu ke mālama i ka pololei o ka lua pahū, akā ʻoi aku ka nāwaliwali o kona ikaika o ka ʻaoʻao hope ma mua o nā ʻano wili ʻē aʻe, no laila kūpono wale nō ia no ka wili ʻana i ka pōhaku palupalu a me ka pōhaku paʻakikī waena.
Ka manawa hoʻouna: Aug-15-2024
