Impembelelo yeThermal kwiPDC Cutter

Kuyaziwa ukuba amasuntswana e-PDC asebenza ngakumbi kune-roller cone bits, kodwa oku kubonwa ngokwesiko kuphela ngelixa kusonjwa amatye athambileyo. Oku kunokubangelwa kukuba i-50% yamandla okomba inokuchithwa ngumsiki ogugileyo. Ukongeza kwimpahla ebangelwa yintsebenziswano phakathi kwelitye kunye ne-cutter, iziphumo ze-thermal zinokukhawulezisa izinga apho umsiki uya kunxiba.

Ukuba iziphumo ze-thermal zingahoywa, kunokubangela ukuba i-bit wear ibe ngumsebenzi womthwalo ofakwe kwi-bit kunye nomgama ohanjiweyo ngelixa udibana nelitye. Njengoko sisazi, oku akunjalo. Iziphumo zobushushu zinefuthe kwireyithi yokunxiba amasuntswana.

Kuxelwa ukuba i-abrasive wear of metal ihambelana nomlinganiselo wobunzima bezinto ezinqabileyo kunye nentsimbi. Kwiibrasives ezithambileyo ezinomlinganiselo ongaphantsi kwe-1.2, umlinganiselo wokunxiba uphantsi. Njengoko umlinganiselo wobunzima obunxulumeneyo udlula i-1.2, izinga lokunxiba liyanda kakhulu.

Xa ujonga i-quartz, naphi na ukusuka kwi-20- 40% yokwakheka kwamatye amaninzi, ubunzima buphakathi kwe-9.8-11.3GPa kunye ne-tungsten carbide yi-10-15GPa. Olu luhlu lubangela umlinganiselo ovela kwi-0.65 ukuya kwi-1.13, ulwahlulo olu budlelwane njenge-abrasive ethambileyo. Xa i-tungsten carbide isetyenziselwa ukusika amatye phantsi okanye ngaphantsi kwe-350 oC, bafumana izinga lokunxiba elifana nelo lokuthambisa okuthambileyo njengoko kulindelekile.

Xa iqondo lobushushu lingaphezu kwe-350 oC, ukunxiba kuyakhawuleza kwaye kuhambelana ngcono naleyo ye-abrasive eqinile. Ukusukela koku, kugqitywe ukuba ukunxiba kunyuka ngefuthe lobushushu. Ukunciphisa ukunxiba kwePDC, kuya kuba luncedo ukulawula ubushushu babasiki.

Xa uphononongo lweziphumo ezishushu kwi-PDC yokunxiba yaqala, i-750oC yayilelona qondo lobushushu likhuselekileyo lokusebenza. Eli qondo lobushushu lasekwa, kuba ngaphantsi kobu bushushu be-microchipping kwakukho ukunxiba okubonwayo kwi-cutter.

Ngaphezu kwama-750℃ azeleyo iinkozo zedayimani bezikhutshwa kumaleko wedayimani kwaye xa zifikelela kumaqondo obushushu angaphezu kwama-950℃ itungsten carbide stud yafumana ukonakala kweplastiki. Ukuqonda abasiki kunye PDC bit geometry kufuneka ichaneke ukunika ulwazi olwaneleyo xa ukhetha kancinane.

I-Zzbetter ibonelela ngomsiki we-PDC womgangatho ophezulu kunye nokuzinza okuhle kwe-thermal. Iqela lethu lisebenza nzima kakhulu ukwenza iimveliso ezisemgangathweni. Sijonge phambili ekukhonzeni ishishini lakho.

Ukuba unomdla kwi-PDC cutters kwaye ufuna ulwazi oluthe kratya kunye neenkcukacha, ungaQHAGAMSHELANA NATHI ngefowuni okanye ngeposi ekhohlo, okanye SITHUMELE MAIL emazantsi ephepha.