ʻO nā Pōhaku ʻoluʻolu ʻo Drilling Roller Cone Bits IADC437 Sealed Bearing a me Long TC Insert Bits

IADC437 tricone roller bits loaʻa nā mea hoʻokomo tungsten carbide i kūpono no ka wili ʻana i nā pōhaku palupalu loa.

Piha mau nā pōhaku palupalu i nā haku mele e uhi ana i nā niho e hana ai i ka pōʻalo bit.

Hiki i nā mea hoʻokomo tungsten carbide pōkole ke wili i nā pōhaku paʻakikī, akā ʻaʻole hiki iā ia ke wili i nā pōhaku palupalu a pipili, ʻo ka bit-balling ka mea e pale ai i ka haki ʻana o ka pōhaku.
ʻO IADC437 ʻoi aku ka lōʻihi o ka TC e hoʻokomo i nā ʻāpana cone roller, kūpono ia no ka ʻeli ʻana i nā papa palupalu i ka wikiwiki wikiwiki.
Nā ʻāpana hana
Hoʻohana ʻia kēia ʻāpana cone roller no nā hana palupalu me ka ikaika haʻahaʻa haʻahaʻa a me ka hiki ke hoʻoheheʻe kiʻekiʻe, e like me ka pālolo, pōhaku ʻala, paʻakai, gypsum, paʻakai, limestone palupalu, etc.