I loko o nā papahana hoʻoheheʻe kiʻekiʻe i lalo o ka lua, i mea e hoʻokō ai i ka pahuhopu o ka hoʻoheheʻe ʻana a me ka wikiwiki, pono e koho i nā kiʻekiʻe kiʻekiʻe a maikaʻi hoʻi i lalo o ka lua, ʻo ia hoʻi, e koho i lalo-ka -hoole drill bits me nā hale like ʻole e like me nā ʻano hana wili ʻokoʻa a me nā ʻano pōhaku. ʻO kahi pūʻulu o nā mea e like me ka drill bit end structure maka, ke ʻano o ka pauka hoʻoheheʻe ʻia, ke ʻano o ka niho carbide a me ka nui, ka paʻakikī o ke kino drill bit, etc. , drill bit ola a me ka pono hana. No laila, he mea nui loa ke koho ʻana i kahi drill bit kūpono i nā papahana wili pōhaku.
E pili ana i nā ʻāpana hoʻoheheʻe kiʻekiʻe i lalo (drill bits), ʻehā mau ʻano hoʻolālā maka hope i hoʻohana ʻia i kēia manawa, ʻo ia hoʻi: ʻano convex maka hope, palahalaha maka hope, ʻano concave maka hope a me ka maka hope hohonu. ʻano kikowaena concave. Hoʻohana ka Carbide i nā niho pōpō, nā niho puna a i ʻole nā niho pōpō a me nā niho puna no ka hoʻonohonoho ʻana i nā niho.
1. Convex end face type: ʻO ka convex end face type high-pressure down-the-hole drill bit (drill bit) hiki ke mālama i kahi kiʻekiʻe o ka hoʻoheheʻe pōhaku i ka wā e wili ai i nā pōhaku waena-paʻakikī a paʻakikī hoʻi, akā ʻilihune ka pololei o ka wili ʻana. a ʻaʻole kūpono ia no nā papahana wili pōhaku me nā koi kiʻekiʻe no ka pololei blasthole.
2. ʻO ke ʻano o ka ʻaoʻao palahalaha: ʻO ke ʻano o ka ʻaoʻao ʻaoʻao pālahalaha kiʻekiʻe i lalo o ka lua (drill bit) he ʻano ikaika a paʻa, a kūpono hoʻi no ka ʻeli ʻana i nā pōhaku paʻakikī a paʻakikī loa. He kūpono no ka wili ʻana i ka pōhaku waena-paʻakikī a me ka pōhaku palupalu me nā koi haʻahaʻa no ka pololei blasthole.
3. Concave concave ʻano maka: ʻO ka concave end face type high-pressure down-the-hole drill bit (drill bit) he ʻāpana conical concave ma ka ʻaoʻao hope, kahi e hana ai ka drill bit i kahi hopena nucleation liʻiliʻi i ka wā o ka wili pōhaku. ke kaʻina hana, mālama i ka hana kikowaena o ka drill bit, a ʻo ka blasthole drilled he pololei pololei. Eia kekahi, ʻoi aku ka maikaʻi o ka wehe ʻana o ka lepo i kēia drill bit a me ka wikiwiki o ka wili ʻana. He kiʻekiʻe-press down-the-hole drill bit i hoʻohana hou ʻia i kēia manawa ma ka mākeke.
4. Ke alo hope ʻano concave kikowaena hohonu: ʻO ka maka hope hohonu concave kikowaena ʻano kiʻekiʻe makani kaomi i lalo-ka-hole drill bit (drill bit) he hohonu concave kikowaena hapa ma ke kikowaena o ka hopena maka, i hoʻohana 'ia no ka nucleation ma ke kaʻina hana ʻeli pōhaku. ʻO ka ʻeli ʻana i nā lua hohonu hiki ke mālama i ka pololei o ka blasthole, akā ʻoi aku ka nāwaliwali o kona maka hope ma mua o nā ʻano ʻē aʻe o nā pahu drill, no laila kūpono wale ia no ka wili ʻana i ka pōhaku palupalu a me ka pōhaku waena.
Ka manawa hoʻouna: ʻAukake-15-2024
