Izinhlobo Ezihlukene Zokubhoboza Izingcezu

I-drilling bit ingenye yezinto ezibaluleke kakhulu ekusebenzeni okuhle kokumba. Ngakho-ke, ukukhetha ama-drill bits afanele kubaluleke kakhulu. I-drill bit yokumba uwoyela negesi ihlanganisa izingcezu zokusika ezigoqayo kanye nezingcezu zokusika ezigxilile.

I-Rolling Cutter Bits

Izingcezu zokusika eziqengqelekayo zibizwa nangokuthi ama-roller cone bits noma ama-tri-cone bits. Izingcezu ze-rolling cutter zinama-cones amathathu. Ikhoni ngayinye ingazungeziswa ngayodwa lapho intambo yokubhoboza izungeza umzimba webhithi. Ama-cones anama-roller bearings afakwe ngesikhathi sokuhlanganiswa. Izingcezu zokusika ezigoqayo zingasetshenziswa ukubhola noma yikuphi ukwakheka uma kukhethwa i-cutter efanele, i-bearing, ne-nozzle.

Kunezinhlobo ezimbili zama-rolling cutter bits okuyizicucu zezinyo ezigayiwe kanye nama-tungsten carbide inserts (ama-TCI bits). Lezi zingcezu zihlukaniswa ngendlela amazinyo enziwa ngayo:

Izingcezu zamazinyo agayiwe

Izingcezu zamazinyo e-Milled zinezinqamuli zamazinyo ensimbi, ezenziwe njengezingxenye ze-bit cone. Izingcezu ezisikiwe noma zikhipha ukwakheka lapho ziphendukiswa. Amazinyo ayahlukahluka ngobukhulu kanye nokuma, kuye ngokwakheka. Amazinyo amabhithi ahlukene kuye ngokwakheka ngale ndlela elandelayo:

Ukwakheka okuthambile: Amazinyo kufanele abe made, azacile, futhi ahlukaniseke kakhulu. Lawa mazinyo azokhiqiza ama-cuttings asanda kuphuka kusukela ekubunjweni okuthambile.

I-Tungsten Carbide Insert (TCI) noma Insert bits ngokuvamile ine-tungsten carbide inserts (amazinyo) ecindezelwa kuma-bit cones. Okufakiwe kunezimo eziningana ezifana nezimo zesandiso eside, okufakwayo okuyindilinga, njll.

Amazinyo ama-bits ahlukene kuye ngokwakheka ngale ndlela elandelayo:

Ukwakheka okuthambile: Ukufakwa kwesandiso eside, okumise okweshizolo

Ukwakheka okuqinile: Isandiso esifushane, ukufakwa okuyindilinga

I-Fixed Cutter Bits

Amabhithi okusika angashintshi ahlanganisa imizimba encanyana nezinto ezisikwayo ezihlanganiswe nemizimba yebhithi. Amabhithi okusika angaguquki aklanyelwe ukumba izimbobo ngokugunda ukwakheka kunokusika noma ukugoba ukwakheka, njengamabhithi okusika agingqekayo. Lezi zingcezu azinazo izingxenye ezinyakazayo njengama-cones noma ama-bearings. Izingxenye zamabhithi zakhiwe ngemizimba encane eyenziwe ngensimbi noma i-tungsten carbide matrix kanye nama-blade agxilile ahlanganiswe nabasiki abangazweli. Abasiki kumabhithi atholakala emakethe yi-Polycrystalline Diamond Cutters (PDC) kanye nabasiki bedayimane bemvelo noma bokwenziwa.

Ezinsukwini zamanje, ngokuthuthuka okwenziwe kubuchwepheshe be-cutter bit engaguquki, izingcezu ze-PDC zingakwazi ukubhola cishe noma yiluphi uhlobo lokubunjwa kusukela ekubunjweni okuthambile kuye kokuqina.

Izingcezu zokubhola ze-polycrystalline diamond compact (PDC) zenziwe ngezisiki zedayimane zokwenziwa ngensimbi noma emzimbeni we-matrix. Izingcezu zokubhoboza ze-PDC ziguqule imboni yokumba ngebanga elibanzi lokusebenzisa kanye nezinga eliphezulu lokungena (ROP) lamandla.

Uma uthanda i-PDC cutter futhi ufuna ulwazi olwengeziwe kanye nemininingwane, UNGATHI XHUMANA NATHI ngocingo noma ngemeyili kwesokunxele, noma SITHUMELE IMEYILI ezansi nekhasi.