Ob Qhov Tseem Ceeb Raw Khoom ntawm PDC Cutters

PDC cutter yog ib yam ntawm cov khoom siv tawv tawv uas compacts polycrystalline pob zeb diamond nrog tungsten carbide substrate ntawm ultra-siab kub thiab siab.

PDC Cutter tau tsim thawj zaug los ntawm General Electric (GE) hauv xyoo 1971. Thawj PDC Cutters rau kev lag luam roj thiab roj tau ua tiav hauv xyoo 1973 thiab tom qab 3 xyoos ntawm kev sim thiab kev sim teb, lawv tau raug pov thawj ntau npaum li qhov kev ua ntawm cov carbide crushing. khawm cov khoom yog li lawv tau tshaj tawm kev lag luam hauv xyoo 1976.

PDC Cutters yog tsim los ntawm tungsten carbide substrate thiab hluavtaws pob zeb diamond grit. Cov pob zeb diamond thiab carbide substrate loj hlob ua ke los ntawm kev sib cog lus tshuaj nyob rau hauv high-temperature thiab high-pressure tej yam kev mob.

Cov ntaub ntawv tseem ceeb tshaj plaws ntawm PDC cutters yog pob zeb diamond grit thiab carbide substrate.

1. Pob zeb diamond grit

Pob zeb diamond grit yog cov khoom siv tseem ceeb rau PDC cutters. Nyob rau hauv cov nqe lus ntawm cov tshuaj thiab cov khoom, manmade pob zeb diamond yog zoo tib yam rau tej pob zeb diamond. Kev ua pob zeb diamond grit suav nrog cov txheej txheem tshuaj lom neeg yooj yim: cov pa roj carbon zoo tib yam yog cua sov hauv qhov kub thiab txias. Hauv kev xyaum, txawm li cas los xij, ua pob zeb diamond yog deb ntawm qhov yooj yim.

Pob zeb diamond grit tsis ruaj khov ntawm qhov kub siab tshaj li pob zeb diamond ntuj, txawm li cas los xij. Vim tias nws yog xim hlau catalyst daig hauv cov qauv grit muaj tus nqi siab dua ntawm thermal expansion dua li pob zeb diamond, qhov sib txawv ntawm qhov sib txawv ntawm cov pob zeb diamond-rau-pob zeb diamond bonds nyob rau hauv shear thiab, yog tias loads siab txaus, nws ua rau daim ntawv cog lus tsis ua hauj lwm. Yog tias daim ntawv cog lus ua tsis tiav, pob zeb diamond poob sai sai, yog li PDC poob nws qhov tawv thiab ntse thiab ua tsis tau zoo. Txhawm rau tiv thaiv qhov tsis ua haujlwm, PDC cutters yuav tsum tau txias txaus thaum lub sijhawm drilling.

2. Carbide substrate

Carbide substrate yog ua los ntawm tungsten carbide. tungsten carbide (tshuaj formula: WC) yog cov tshuaj lom neeg uas muaj tungsten thiab carbon atoms. Daim ntawv yooj yim tshaj plaws ntawm tungsten carbide yog cov hmoov grey zoo, tab sis nws tuaj yeem raug nias thiab tsim ua cov duab los ntawm nias thiab sintering.

Tungsten carbide yog siv dav hauv kev khawb hauv cov pob zeb tho pob zeb saum toj kawg nkaus, cov rauj downhole, cov menyuam txiav, cov phab ntsa plow chisels, longwall shearer picks, nce tho txawv reamers, thiab qhov tho txawv tshuab.

Zzbetter muaj kev tswj nruj rau cov khoom siv raw ntawm pob zeb diamond grit thiab carbide substrate. Rau kev ua PDC cutter oilfield drilling, peb siv cov pob zeb diamond txawv teb chaws. Peb kuj yuav tsum tau zuaj thiab ua kom nws rov zoo dua, ua rau cov particle loj dua qub. Peb kuj yuav tsum tau ntxuav cov khoom siv pob zeb diamond. Peb siv Laser Particle Size Analyzer los txheeb xyuas qhov loj me me, purity, thiab loj rau txhua pob zeb diamond hmoov. Peb siv cov hmoov zoo nkauj zoo nkauj nrog cov qib tsim nyog los tsim cov tungsten carbide substrates.

Ntawm Zzbetter, peb tuaj yeem muab ntau yam ntawm cov cutters tshwj xeeb.

Hu rau kuv kom paub ntxiv.Email: [email protected]

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