Iimilo ezahlukeneyo zabasiki bePDC

Ukugaya ngumsebenzi obalulekileyo kwishishini leoli kunye negesi. Amasuntswana ePDC (ekwabizwa ngokuba yiPolycrystalline Diamond Compact bit) ahlala esetyenziswa kwinkqubo yokomba. Isuntswana lePDC luhlobo lwesuntswana eliqulathe izisiki ezininzi zePolycrystalline Diamond (PCD) ezincanyathiselwe kwisuntswana lomzimba kwaye zisikwe ematyeni ngokucheba isenzo phakathi kwabasiki kunye nelitye.

I-PDC cutter yinxalenye ebaluleke kakhulu ye-drill bit, kwakhona ihashe lomsebenzi wokomba. Iimilo ezahlukeneyo ze-PDC cutter zijolise ukuhlangabezana neemeko zomsebenzi ezahlukeneyo. Ukukhetha imilo echanekileyo kubaluleke kakhulu, enokuphucula ukusebenza kwakho kakuhle kunye nokunciphisa iindleko zokomba.

Ngokwesiqhelo, sahlulahlula iPDC cutter ngolu hlobo lungezantsi:

1． PDC abasiki caba

2． amaqhosha ePDC

Izisiki ezisicaba zePDC zisetyenziswa ikakhulu ukomba amasuntswana emigodini nakwindawo zokomba ioyile. Inokusetyenziswa kwakhona kwi-diamond core bit kunye ne-PDC ephethe.

Eyona nto iluncedo kubasiki bePDC:

• Ukuxinana okuphezulu (i-porosity ephantsi)

• Ukuqulunqwa okuphezulu kunye nokwakheka okufanayo

• Ukunxiba okuphezulu kunye nokumelana nempembelelo

• Ukuzinza okuphezulu kwe-thermal

• Umsebenzi ogqwesileyo jikelele okhoyo kwimarike

PDC flat umsiki ububanzi ububanzi ukusuka 8 ukuya 19mm ::

Ezi nkcukacha zingentla zezabasebenzisi ukukhetha kuzo. Ngexesha elifanayo, iinkcukacha ezahlukeneyo zeemveliso zinokuveliswa kwaye ziqhutywe ngokweemfuno zabasebenzisi.

Njengomthetho jikelele, abasiki abakhulu (19mm ukuya kwi-25mm) banobudlova kunabasiki abancinci. Nangona kunjalo, banokunyusa ukuguquguquka kwetorque.

Abasiki abancinci (i-8mm, i-10mm, i-13mm kunye ne-16mm) baye baboniswa ukuba baqhube kwizinga eliphezulu lokungena (i-ROP) kunabasiki abakhulu kwizicelo ezithile. Esinye isicelo esinjalo yi-limestone ngokomzekelo. Amasuntswana ayilwe ngabasiki abancinci kodwa uninzi lwazo lunokumelana nokulayisha okuphezulu.

Ukongeza, abasiki abancinci bavelisa iinqumlo ezincinci ngelixa abasiki abakhulu bevelisa ukusika okukhulu. Ukusikwa okukhulu kunokubangela iingxaki ngokucoca umngxuma ukuba ulwelo lokomba alukwazi ukuthwala ukusika.

PDC ethwele

Ukuthwala kwePDC kusetyenziswa njengesithinteli sokuthintela ukunyanzeliswa kwemoto ephantsi, esetyenziswa kakhulu kwiinkampani zenkonzo ye-oyile kunye neefektri zeemoto ezisezantsi. Ukuthwala kwePDC kuneentlobo ezahlukeneyo ezibandakanya ukuthwala kwe-PDC radial, ukuthwala i-PDC thrust.

Iibheringi zePDC zixhathisa kakhulu ukunxiba. Xa kuthelekiswa ne-tungsten carbide yendabuko okanye ezinye iibheringi ze-alloy eqinile, ubomi beebheringi zedayimane buyi-4 ukuya kumaxesha angama-10 ubude, kwaye banokusebenza kumaqondo aphezulu (okwangoku ubushushu obuphezulu bungama-233 ° C). Inkqubo yokuthwala iPDC inokufunxa umthwalo ogqithisileyo ixesha elide, kwaye ilahleko ephantsi yokruthakruthwano kwindibano yokuthwala inyusa ngakumbi amandla omatshini agqithisiweyo.

Amaqhosha ePDC asetyenziswa ikakhulu kwi-DTH drill bit, i-cone bit, kunye nokukhetha kwedayimane.

Ukuchongwa kwedayimani ikakhulu kusetyenziselwa oomatshini basemigodini, abanje ngegubu eliqhubekayo labasebenzi basezimayini, imigqomo yokucheba iLongwall, oomatshini bokudinwa kwetonela (isiseko somatshini wekhaka, isixhobo sokomba esijikelezayo, itonela, imigqomo yomatshini wokuthunga, njalo njalo)

Amaqhosha ePDC aquka ikakhulu:

(1) PDC domed amaqhosha: ikakhulu isetyenziselwa DTH drill bit.

(2) PDC conical amaqhosha: ubukhulu becala asetyenziselwa i-cone bit.

(3) Amaqhosha e-PDC parabolic: ikakhulu asetyenziselwa ukusika uncedo.

Xa kuthelekiswa namaqhosha e-tungsten carbide, amaqhosha ePDC anokuphucula ukuxhathisa kwe-abrasive ngaphezu kwamaxesha e-10.

PDC domed amaqhosha

I-PDC abasiki be-conical

PDC parabolic amaqhosha

Ngaphandle kobukhulu obuqhelekileyo, sinako ukuvelisa ngokomzobo wakho.

Wamkelekile ukufumana abasiki be-zzbetter PDC, ukusebenza okugqwesileyo, umgangatho ongaguqukiyo, kunye nexabiso elibalaseleyo.