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Txoj kev loj hlob ntawm cov khoom cua pob zeb diamond
- May 08, 2018 -

Nrog rau kev tsim cov khoom siv tshuab ua haujlwm thiab kev siv tshuab ua kom tiav, muaj ntau yam cuab yeej siv ua kom siab kub tiav. Piv txwv, computer disks, sib nqus hau, sib txuas lus kho qhov muag, khoom muag iav, thiab semiconductor substrates tag nrho yuav tsum tau precision polishing. Cov xwm txheej tsis zoo, khawb, los sis sib txawv ntawm cov khoom txawv teb chaws tshaj qhov txwv tsis pub nyob rau ntawm qhov chaw yuav tsis lav qhov tseeb thiab kev ua tau zoo ntawm tus tsim. Yog li ntawd, lub pob zeb diamond micropowder zus tau qhia cov ncauj lus nram qab no:

Ua ntej, lub pob zeb diamond hmoov ntau lawm khoom siv hluav taws xob

Pob zeb hmoov yog tau los ntawm crushing thiab classifying coarse-grained tib crystal pob zeb diamond. Feem ntau, peb muaj cov tswv yim yooj yim rau kev sib tsoo tej khoom siv rau hauv cov micron lossis submicron particle me me, namely crushing, mechanical impact {ncaj kev sib tsoo thiab kev sib tsoo ntawm high-speed (saum 9m / pom) muaj nuj nqi tsuas yog raws li cov khoom siv khoom txawb nrog tus nqi tsim nyog ntawm cov neeg ua haujlwm tsawg-ceev. Hauv txoj kev ntawm txoj kev, kev siv lub pob mills rau pob zeb diamond crushing los ua cov pob zeb diamond micropowder yog txoj kev ua haujlwm tshaj plaws. Pob zeb crushing hom tau siv hauv pob zeb diamond micropowder zus hauv Suav tau ntau xyoo, thiab tau ua tiav cov txiaj ntsig. Txawm li cas los xij, vim muaj qhov tsis zoo ntawm qhov ua kom tsis zoo, nws raug hloov los ntawm lub dav hlau. Lub tshuab zeb dav hlau siv compressed cua ua haujlwm ua haujlwm. Cov cua ntsawj yuav tsum tau muaj kev kub ceev los ntawm kev sib tw tshwj xeeb supersonic rau lub crushing Chamber. Cov kwj huab cua nqa cov khoom ntawm kev kub ceev. Tsiv, kom cov ntaub ntawv thiab cov ntaub ntawv muaj kev sib tsoo muaj zog, txhuam thiab txiab mus cuag lub hom phiaj ntawm crushing. Raws li cov qauv kua hluav taws xob, lub zog ntawm lub zog ntawm lub zog yog proportional to square ntawm qhov loj thiab tshaj tawm. Fragmentation tshwm sim thaum lub zog ua rau lub particle ntau dua nws txoj kev ntxhov siab. Cov neeg ua haujlwm nce qib siab ua rau muaj kev cuam tshuam txog kev ploj zuj zus, thaum shearing thiab kev sib tsoo tawm hauv qhov cuam tshuam ntawm qhov hais. Qhov hom ntawm crushing txoj kev yog qhov zoo heev rau cov khoom ntawm pob zeb diamond hmoov zoo, vim nws tuaj yeem tsim tau ib hom duab zoo nkauj zoo dua. Qhov loj tshaj plaws ntawm lub dav hlau zeb yog tias nws tsis yog txwv los ntawm kev ceev ntawm cov neeg kho tshuab kab, thiab nws muaj peev xwm ua kom muaj huab cua airflow ceev. Hauv particular, lub pob zeb ntawm cov neeg ua haujlwm supersonic tuaj yeem ua kom khiav ceev uas muaj ob peb zaug cov kev ceev ntawm lub suab, thiab yog li nws muaj peev xwm tsim cov hluav taws xob loj hauv lub zog thiab yog qhov yooj yim kom tau txais nyob rau hauv ntau lub micron. Thiab submicron ultrafine hmoov. Los ntawm txoj cai ntawm kev sib tsoo, qhov qauv no ntau tshaj cog rau pob zeb diamond hmoov ntau lawm.

Granularity kev faib tawm yog ib qho tseem ceeb heev nyob rau hauv lub pob zeb diamond micron qhuav. Nws yuav ua rau cov khoom siv tau zoo npaum cas thiab muaj hmoov pob zeb zoo zoo. Tam sim no, feem ntau cov dav siv pob zeb diamond particle loj nyob rau hauv Suav teb yog ua ke ntawm ntuj tsim thiab centrifugal txoj kev los tsim cov hmoov zoo. Qhov kev sib hais haum yog ib txoj kev faib tawm uas ncaj qha rau Stokes txoj cai. Raws li lub ntsiab cai ntawm cov ntsiab lus ntawm tib qho kev nqus tau muaj ntau cov dej siab nyob rau hauv cov dej vim qhov sib txawv ntawm qhov sib txawv, qhov loj me me tuaj yeem muab cais tawm los ntawm kev tswj nws txoj kev nyob thiab lub sij hawm. Yooj yim, yooj yim rau kev khiav lag luam, ruaj khov nyob rau hauv zoo, tab sis nrog ib tug ntev tsim voj voog thiab ua haujlwm tsawg. Rau qhov kawg no, ntau lub tuam txhab thiab lwm cov tuam txhab tsim tau tsim cov cuab yeej khoom siv hauv tsev kawm ntawv, siv cov tshuab computer thiab kev siv technology ntau qhov kom muaj zog, tsim plaub lub tshuab tsis siv neeg, tsis siv neeg cov khoom tawm, kev tswj dej tsis zoo thiab kev siv computer, kev tsim digital, , lub zog txuag hluav taws xob lub zog muaj kev ua haujlwm zoo, muaj kev ntseeg siab thiab zoo maneuverability uas tsis tuaj yeem sib haum ntawm tib neeg. Tshaj li 10 mus rau 20 npaug tshaj, muaj kev kawm siab, kev ceev, kev txheeb xyuas qhov tseeb, tsis muaj kev sib txuam tsis tau, tsis muaj kev cuam tshuam dab tsi, khoom zoo, ruaj khov, zoo dua qub, haujlwm ua haujlwm tseem ceeb ntawm cov khoom me me, cov tuam txhab tsawg tsawg, thiab ntau cov ntaub ntawv pov tseg. Nyob rau hauv txoj kab nrog txoj kev coj ntawm lub neej yav tom ntej ntawm kev lag luam hmoov.

Qhov thib ob, qhov kev faib tawm ntawm kev paub, qhov loj me me ntawm qhov nruab nrab

Nrog rau kev ua tiav ntawm kev tshawb fawb thiab kev siv tshuab, ntau yam kev ua tiav cov kev tsim nyog tau txais ntau dua thiab siab dua, thiab qhov loj me me ntawm cov hmoov siv yog siv hauv txoj kev hloov maj mam. Piv txwv li, kev ntxhib los mos ua luam ntawm lub computer hard disks tau hloov sai heev txij thaum pib ntawm kev siv cov pob zeb diamond hmoov hauv xyoo 1990. Txij thaum pib ntawm 1 micron mus rau 0.1 micron tam sim no, nws yuav tsis ntev hloov mus rau 0.05 micron (50 nm) los yog Finer theem. Raws li lub pob zeb diamond hmoov zoo ntawm 2 micrometers, lub teb chaws tus qauv GB6966.1-1986 formulated hauv 1986 tseev kom muaj 4 theem ntawm 2 khob pob zeb diamond hmoov: 0-0.5, 0.5-1, 0.5-1.5, 0-2; Kev lag luam tus qauv JB / T7990-1998 hais tias 2 micron nplaum pob zeb diamond hmoov muaj 6 qib: 0-0.5, 0-1, 0.5-1, 0.5-1.5, 0-2, 1-2; los ntawm cov chaw tsim txuj ci Lub pob zeb diamond muaj ib qhov luaj li cas me me thiab qhov sib txawv me me. Huifeng lub tuam txhab yog cov khoom lag luam loj tshaj plaws ntawm pob zeb diamond hmoov hauv Suav teb. Nyob rau hauv lub pob zeb diamond micropowder tus qauv nws formulates, 2 micrometers yog finely muab faib ua 12 qib: 0-0.06, 0-0.1, 0-0.125, 0-0.2, 0-0.25, 0.1-0.25, 0.2-0.5, 0.25-1, 0.5 -1, 0.5-1.5, 0-2, 1-2. Qhov qis ntawm qhov loj ntawm qhov siab yog ntsuas raws li tam sim no thoob ntiaj teb.

Thib peb, siab hnyav ntawm pob zeb diamond

Kev siv hluavtaws pob zeb hluavtaws (micro-hmoov) feem ntau yog ib qho-pob zeb diamonds raws li hom I cov ntaub ntawv. Vim yog cov yam ntxwv zoo ntawm hom I cov ntaub ntawv: Cov ntsiab lus loj impurity thiab tsis tshua muaj zog, lawv tsis tuaj yeem ua raws li cov kev lag luam siab uas yuav tsum muaj rau lub pob zeb diamond micropowder. Ob lub pob zeb diamond micropowder manufacturers hauv Tuam Tshoj siv hom II los yog hom III ib qho siv lead ua pob zeb raws li raw khoom los tsim diamond micropowder. Raws li kev tawm tswv yim hauv kev lag luam, cov micropowder yog ntau npaum li lub pob zeb diamond micropowder, thiab txoj kev ua haujlwm hnyav tau zoo dua los ntawm ntau tshaj 30%. Nws zoo heev rau kev ua cov pob zeb diamonds ntau; ua silicon diodes thiab germanium diodes tuaj yeem ua tiav qib siab ntawm daim iav tiav.

Plaub, tshwj xeeb lub hauv paus pob zeb diamond

Cov pob zeb txawv txawv tau muaj lawv cov yam ntxwv. Raws li ntau daim ntawv thov ntawm pob zeb diamond, muab cov khoom siv sib txawv rau hauv: cov pob zeb diamonds (PCD), cov roj hluav taws (PDC), lub pob zeb diamond welding, cov thawv ntim khoom, cov khoom siv hlau, cov khoom sib tsoo thiab lwm yam hmoov pob zeb diamond . Ua kom sib txawv. Qhov no yog lub teb chaws tus pob zeb diamond hmoov hloov khoom qauv, qhov kev loj hlob ntawm txoj kev zoo rau lub specialization, tab sis kuj yog ib kauj ruam tseem ceeb rau Tuam Tshoj lub pob zeb diamond hmoov mus ntes nrog lub ntiaj teb advanced theem.

Polycrystalline pob zeb diamond micropowder yog cov xim ntawm nws cov brittleness, nws cov khoom zoo nkauj yog cov tsis sib haum, quas-txhav thaiv, thiab saum npoo yog tsis txaus thiab tsis sib txig. Thaum twg cov me nyuam tau raug kev nyuaj siab, tus brittleness ua rau cov khoom tawg, ua rau cov ntsiab lus tshiab ntse. Nws tus kheej-hliav zoo dua. Hom hmoov ntawm pob zeb diamond yog qhov zoo tagnrho rau kev tsim cov pob zeb sib tsoo pob zeb, thiab lwm yam.

Undoubtedly, pob zeb diamond hmoov yog ib qho kev ntxub ntxaug abrasive rau txoj kev loj hlob ntawm high, refined thiab ntse khoom. Nws daim ntawv thov muaj ntau txoj kev sib tw thiab nws daim ntawv thov tau nthuav tawm.