Nā ʻāpana ʻōwili ʻōwili palupalu IADC437 Sila ʻia a me nā ʻāpana hoʻokomo TC lōʻihi

Loaʻa i nā ʻāpana wili tricone IADC437 nā hoʻokomo tungsten carbide lōʻihi loa i kūpono no ka ʻeli ʻana i nā pōhaku palupalu loa.

Ua piha mau nā pōhaku palupalu i nā mea pipili e uhi ana i nā niho e hana ai i ka bit-balling.

Hiki i nā mea hoʻokomo tungsten carbide pōkole ke wili maʻalahi i nā pōhaku paʻakikī, akā, ʻaʻole hiki iā ia ke wili i nā pōhaku palupalu a pipili, e pale ka bit-balling i ka haki ʻana o ka pōhaku.
ʻOi aku ka lōʻihi o ka IADC437 i nā ʻāpana roller cone TC hoʻokomo, kūpono ia no ka ʻeli ʻana i nā ʻano palupalu i ka wikiwiki wikiwiki.
Nā Palena Hana
Hoʻohana ʻia kēia mau ʻāpana cone roller no nā ʻano palupalu me ka ikaika compressive haʻahaʻa a me ka hiki ke wili kiʻekiʻe, e like me ka lepo, ka pōhaku lepo, ka chalk, ka gypsum, ka paʻakai, ka limestone palupalu, a pēlā aku.