2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28
Hnub no, muaj pob zeb diamond ntxhib uas ua raws li cov ntaub ntawv tswj hwm TU 47-2-73. Txawm li cas los xij, cov hmoov pob zeb diamond uas tau tsim ua raws li GOST 9206-80E tau siv ntau dua, vim lawv tuaj yeem tau los ntawm cov khoom siv hluavtaws, thiab tsis yog los ntawm cov khoom ntuj xwb.
Powder description
Muaj lwm yam abrasive, uas yog, tsis yog pob zeb diamond ntxhib, uas kuj siv tau, tab sis nws qis dua qhov zoo li hardness. Cov kev xav tau rau cov hmoov pob zeb diamond tseem ntau dua, tshwj xeeb tshaj yog rau cov nplej loj thiab lub zog.
Nws yog qhov tseem ceeb ntawm qhov kev txiav txim siab ntxiv. Qhov kev ntsuas no yog hom pob zeb diamond thiab, raws li, hom hmoov tau los ntawm nws. Tsis tas li ntawd, lub luag haujlwm tseem ceeb yog ua los ntawm qhov ntsuas qhov loj me ntawm cov pob zeb diamond hmoov thiab cov concentration ntawm cov khoom siv raw hauv cov txheej txheem txiav. Nws yog ib nqi sau cia hais tias, nyob rau hauv qhov tseeb, txhua pob zeb diamond lis yog ib tug ua hauj lwm txiav ntug ntawm lub cuab tam. Vim li no, txhua cov nplej yuav tsum muab kev ua haujlwm siab tshaj plaws thaum lub sijhawmlub sijhawm ua haujlwm ntawm txhua txoj haujlwm cuab yeej.
GOST hmoov qib
Raws li tau hais ua ntej, GOST ntawm pob zeb diamond hmoov 9206-80E yog cov ntaub ntawv uas txhais cov ntsuas qhov zoo ntawm cov khoom siv raw. Nws kuj muaj kev faib cov tshuaj rau hauv qee lub npe.
Nyob rau hauv rooj plaub no, peb tab tom tham txog kev faib cov hmoov, uas tsuas yog tau los ntawm ntuj pob zeb diamond. Muaj 5 hom nyob rau hauv tag nrho, thiab qhov sib txawv tseem ceeb ntawm lawv yog cov ntsiab lus ntawm cov nplej muaj zog nrog cov duab isometric. Cov hmoov yog cim raws li A1, A2, A3, A5 thiab A8. Tus lej uas tuaj tom qab tsab ntawv A qhia txog tus lej ntawm isometric nplej hauv pob zeb diamond hmoov hauv kaum ntawm feem pua. Hauv lwm lo lus, piv txwv li, A3 yuav muaj 30% isometric pob zeb diamond nplej. Tseem muaj ib pawg uas txawv li micropowders. Lawv kuj tuaj yeem tau txais los ntawm cov pob zeb diamond ntuj nkaus xwb, thiab lawv tau muab faib ua ob pawg - AM thiab AN. AM yog ib pawg ntawm cov hmoov uas muaj peev xwm abrasive nyob rau theem ib txwm, AN yog cov khoom uas qib no suav hais tias yog siab.
Synthetics
Raws li cov khoom siv pob zeb diamond, cov hmoov tau los ntawm lawv kuj muaj kev faib tawm, thiab lawv kuj txawv ntawm lawv qhov kev ua tau zoo thiab lub cev muaj zog. Rau lawv, tib GOST yog siv raws li ntuj tsim. Raws li cov ntaub ntawv tswj hwm no, cov hmoov hluavtaws muab faib ua ob pawg:
- thawj pab pawg yog cov hmoov tau los ntawmPob zeb diamond ib leeg-crystal thiab cim AC2, AC4, AC6, AC15, AC20, AC32, AC50;
- pab pawg thib ob - hmoov tau los ntawm polycrystalline pob zeb diamond qib APBI, ARK4, ARSZ.
Ntawm no nws tsim nyog ntxiv tias tsis ntev los no rau kev tsim cov cuab yeej siv hauv kev lag luam rau machining, tshwj xeeb tshaj yog muaj zog hluavtaws ib leeg siv lead ua. Lawv ua hmoov, uas tau sau tias yog AC65, AC80 thiab AC80T.
Kev piav qhia ntawm cov nyiaj muas
Pob zeb diamond hmoov, uas tau sau tias yog AC2, qee zaum kuj hu ua ACO. Lub peculiarity ntawm raw cov ntaub ntawv yog hais tias cov nplej yog tsuas yog nthuav raws li aggregates nrog ib tug tsim nto. Lawv nthuav dav ntxiv brittleness thiab lawv qhov kev siv tseem ceeb yog cov organic bonds hauv cov cuab yeej siv los txhuam pob zeb.
Cov hmoov ntawm cov khoom lag luam tom ntej, uas yog, AC4 lossis ACP, tsis yog tsuas yog sib sau ua ke, tab sis kuj muaj kev sib tshuam, thiab lawv tau siv rau cov cuab yeej siv los ua kom tiav polishing ntawm pob zeb.
AC6 hmoov lossis ASV twb yog ib pawg ruaj khov dua, txij li cov nplej tau nthuav tawm nyob rau hauv daim ntawv ntawm cov muaju tsis zoo, lawv cov kev sib tshuam thiab cov khoom tawg. Vim lawv lub zog siab, lawv twb tau siv rau cov hlau khi ntawm cov cuab yeej ua pob zeb.
Pob zeb diamond hmoov AC15 lossis ASA yog sawv cev los ntawm cov nplej siab zog hauv daim ntawv ntawm cov khoom siv lead ua, lawv cov fragments thiab intergrowths nrog cov nplej piv tsis ntau tshaj 1.6. Raws li cov khoom siv lead ua, lawv muaj me meqhov tsis zoo uas nyob hauv daim ntawv tsis zoo. Cov hmoov no hnyav siv rau cov cuab yeej sib txuas hlau, uas yog npaj rau kev sib tsoo nruab nrab ntawm lub pob zeb nyuaj.
Tom ntej los ntawm AC20 hom. Cov hmoov nyob rau hauv cov ntaub ntawv no muaj tib lub crystals, fragments thiab intergrowths raws li AC15, tsuas yog ib tug sib txawv - lub grain zoo coefficient tsis ntau tshaj 1.5. Scope - cov cuab yeej rau kev sib tsoo pob zeb. AC32 yog cov khoom siv raw uas twb tau nthuav tawm nyob rau hauv daim ntawv ntawm cov hmoov nplej zoo ntawm cov muaju, lawv cov khoom tawg. Qhov sib txawv tseem ceeb yog qhov muaj zog ntxiv, nrog rau cov coefficient ntawm cov nplej nws tus kheej, tsis ntau tshaj 1, 2.
Hom khoom muaj nqis tshaj plaws yog AC50. Tsis tas li ntawd, cov hmoov yog nthuav tawm nyob rau hauv daim ntawv ntawm tag nrho, zoo-txiav nplej ntawm cov muaju thiab lawv cov fragments, tab sis cov duab zoo tshaj thiab tsis ntau tshaj 1.18. Nws yog siv rau cov cuab yeej tsim rau milling thiab edging lub pob zeb ruaj khov tshaj plaws..
YPolycrystal hmoov
Nws yog ib qho tsim nyog sau cia tias kev siv cov polycrystals kom tau cov hmoov kuj yog qhov zoo heev. Los ntawm lawv tus kheej, polycrystals yog conglomerates ntawm me me, intergrown diamonds, khi los ntawm ib tug nqi khoom siv nyob rau hauv lawv synthesis. Xws li cov khoom sib txuas tuaj yeem yog hlau, npib tsib xee, chromium thiab lwm yam khoom. Peb pawg tseem ceeb ntawm polycrystalline hmoov qib tau qhia yav dhau los, txawm li cas los xij, tsuas yog ob ntawm lawv tau siv los tsim cov cuab yeej - cov no yog APC4 thiab APC3.
pob zeb diamond drilling
Qhov haujlwm no raug txiav txim siabqhov ua tau zoo tshaj plaws thiab ceev tshaj plaws, yog tias koj xav tau ib lub qhov cylindrical txawm nyob rau hauv cov khoom muaj zog txaus. Qhov sib txawv tseem ceeb ntawm kev siv cov cuab yeej pob zeb diamond thiab jackhammer lossis perforator yog tias lub qhov tsis yog tsuas yog zoo kawg nkaus, tab sis kuj tsis muaj qhov tawg me ntsis. Tsis tas li ntawd, cov txheej txheem pob zeb diamond drilling yog nyob ntsiag to thiab yuav luag tsis muaj kev siv zog. Lub tshuab uas siv rau hom kev ua haujlwm no tsis muaj qhov cuam tshuam, thiab lub qhov yog txiav siv cov cuab yeej txiav uas yog ua los ntawm cov pob zeb diamond ntxhib. Nws yog ua tsaug rau qhov no uas koj tuaj yeem tau txais qhov zoo tshaj plaws txawm tias qhov hauv txhua yam khoom, ntawm txhua lub kaum sab xis thiab yuav luag txhua qhov tob.
Pom zoo:
Cov cuab yeej cuab tam thiab kev lav phib xaub - ib qho cuab yeej rau kev ntsuam xyuas cov dej num ntawm kev lag luam
Txhawm rau txheeb xyuas cov khoom muaj nqis thiab kev lav phib xaub hauv kev lag luam, daim ntawv tshuav nyiaj li cas tau kos tom qab lub sijhawm. Nws tso cai, ua tsaug rau cov ntsuas no, txhawm rau ntsuas lub xeev tam sim no ntawm lub tuam txhab thiab, yog tias tsim nyog, ntsuas kev txhim kho nws txoj haujlwm
Dab tsi yog kev lag luam cuab yeej? Cov cuab yeej siv thev naus laus zis thiab cov cuab yeej siv
Cov kab lus no mob siab rau cov cuab yeej siv thev naus laus zis. Cov khoom siv, cov nuances ntawm kev tsim thiab kev tsim khoom, kev ua haujlwm, thiab lwm yam raug txiav txim siab
Igneous pob zeb: daim ntawv teev, txoj kev tsuas, daim ntawv thov
Igneous (igneous) pob zeb tshuav lawv qhov tsim los rau magma, tom qab nws tawg tawm ntawm lub plab hnyuv hauv ntiaj teb, txias thiab khov. Lawv sawv cev rau lub ntiaj teb crust los ntawm 90 feem pua lossis ntau dua. Thiab tag nrho lub ntiaj teb saum npoo yog sedimentary thiab igneous pob zeb. Nyob rau hauv qhov tob ntawm lub ntiaj teb no yuav luag 15 km
Tooj liab hmoov: ntau lawm, lub hom phiaj thiab daim ntawv thov
Tooj liab hmoov yog cov khoom siv dav hauv cov xim thiab cov kua roj vanish, tshuaj lom neeg, tsheb, ntsuas ntsuas, thiab kev lag luam nanotechnologies. Muaj ntau lub npe tseem ceeb ntawm cov khoom zoo li no. Thiab tag nrho cov ntawm lawv yog tsim nyob rau hauv raws li cov qauv teev tseg los ntawm GOST
Pob zeb sib xyaw: cov khoom, muaj pes tsawg leeg, hom, qib ntawm pob zeb, yam ntxwv, ua raws li GOST cov qauv thiab daim ntawv thov
Ntawm cov khoom tseem ceeb ntawm cov pob zeb sib tov, uas tseem hu ua hydrotechnical pob zeb, nws yog ib qho tsim nyog los qhia txog qhov ua kom muaj dej ntau ntxiv. Cov vaj tse raug tsim los ntawm cov khoom siv no los siv rau hauv thaj chaw swampy lossis hauv cheeb tsam uas muaj dej nyab
