Tungsten carbide Nozzle yePDC Drill Bit

    PDC drill bits zvishandiso zvine hunyanzvi zvekupwanya dombo zvinoshandiswa zvakanyanya mukuchera oiri uye gasi, kuongorora geological, uye mamwe minda. Iyo tungsten carbide nozzle ndechimwe chezvinhu zvayo zvakakosha. Inowanzoisirwa pagomba remvura yePDC drill bit, inoisa mvura yekuboora ine simba guru kuti ipe kutonhodza, kuchenesa,   uye kubatsira mukutsemuka kwedombo. Kuita kwayo kunobata zvakananga kuchibhorani asi ndizvo

hupenyu hwebasa uye kushanda zvakanaka kwekuchera.

I.  Nozzle Connection Method:

    Inofanirwa kuenderana negomba remvura rePDC drill bit. Kubatana kwakajairwa ndeye tambo yekubatanidza (yekunze kana yemukati, ine 3A-giredhi chaiyo kune

    chengetedza kuti hapana kuvuza pasi pekumanikidzwa kwakanyanya). Mamwe madiki madiki anoshandisa chinopindirana chinokodzera (press-fit), chinodzivirira kusunungura mushure mekuiswa.

II. Nozzle Material Hunhu: Tungsten Carbide (WC)

    1. Kuoma Kwepamusoro uye Kusagadzikana Kwekupfeka: Kuomarara kweTungsten carbide ndeyechipiri kudhaimondi, zvichiita kuti isakure nekukukurwa nezvikamu zvinokwesha mumvura yekuchera (senge jecha nemarara esimbi), kuwedzera hupenyu hwemhuno.

    2. Corrosion Resistance: Inomira pakuora kubva kumakemikari anowedzera mumvura yekuchera (semunyu nemaasidhi).

    3. Impact Resistance: Tungsten carbide inowanzo shandisa cobalt (Co) se

binder, ichipa imwe nhanho yekusimba uye kudzivirira brittle kutyoka.

III. Carbide Nozzle Structural Design Zvimiro

    1. Yakagadziriswa Inner Bore: Inoderedza mhirizhonga uye inovandudza kushanda kwemvura. Mhando dzakajairika dzinosanganisira:

    2. Yakarurama Bore: Yakareruka uye yakasimba, yakakodzera kuchera kwakajairika.

    3. Venturi: A converging-diverging structure inowedzera kuyerera uye inowedzera kubviswa kwechip.

    4. Hukuru hwakasiyana-siyana: Iyo mhuno yemukati dhayamita (kazhinji 6-16mm) inosarudzwa zvichienderana nekudonha kwemvura yekuyerera uye inodiwa jekiseni velocity.

    Replaceable Dhizaini: Hapana chikonzero chekutsiva iyo yese drill bit mushure mekupfeka, kuderedza mari yekugadzirisa.

IV. Iwo akakosha mabasa etungsten carbide nozzles ndeaya anotevera:

    1. Kutonhodza Vacheki

Vacheki vePDC drill bit vanoburitsa huwandu hwakawanda hwekupisa apo vanotenderera nekumhanya kukuru kutema dombo.  Kunyanya kupisa kunogona kukonzera carbonization uye kukundikana kwedhaimani layer. Mvura yekuchera ine high-pressure yakaburitswa mu tungsten carbide nozzle inobvisa zvakananga kupisa uku, ichichengeta tembiricha ye cutter iri munzvimbo isina njodzi   (kazhinji iri pasi pe 700°C)  uye kudzivirira kukuvara kwemafuta.

    2. Kuchenesa Rock Cuttings

Zvicherwa zvematombo zvinogadzirwa panguva yekucheka zvinogona kuungana zvakatenderedza vacheki, zvichikonzera "kubhowa kwedhaka" (musanganiswa wekucheka uye kudhirowa kwemvura inonamira kune dhiri bhiti), kuderedza dombo-kupwanya. Iyo yakakwirira-yekumhanya yejeti yemvura kubva mumuromo inokurumidza kuparadzira uye inobvisa kucheka, kuchengetedza kunoshanda kunobata pakati peanocheka nedombo.

    3. Hydraulically Assisted Rock Breaking

Iyo jeti kubva pamhuno (pakumhanya inosvika 100-200 m/s) inokanganisa dombo, ichigadzira kuputika kwehydraulic. Iyi synergistic mhedzisiro, yakasanganiswa neiyo mechanical yekucheka chiito chevacheki, inoderedza dombo kuputsa kuramba, kuwedzera zvakanyanya kukurumidza kupinza, kunyanya mukuumbwa kwakaoma.

V. Applications

Carbide nozzles inonyanya kushandiswa mune zvinotevera zviitiko:

    1. Maumbirwo akapfava kusvika epakati-akaoma, akadai seshale neraimu, uko anopindirana nekuveura kwakanaka kwezvibooro zvePDC.

    2.  Matsime akadzika/akachinjika anoda mapombi epamusoro uye hydraulic control chaiyo, uko kuvimbika kwetungsten carbide nozzles kwakakosha.

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