Pob zeb diamond hauv tsev nrog ntau dua | hom ib leeg siv lead ua pob zeb diamond li raw khoom, tab sis | hom siab impurity cov ntsiab lus, tsis tshua muaj zog, tsuas yog siv tau rau hauv cov khoom lag luam qis kawg xav tau. Ob peb lub pob zeb diamond hmoov manufacturers siv hom I1 los yog Sichuan hom ib leeg siv lead ua pob zeb diamond raws li raw khoom los tsim cov pob zeb diamond hmoov, nws cov kev ua tau zoo ntau dua li cov pob zeb diamond zoo tib yam, uas tuaj yeem ua tau raws li qhov xav tau ntawm kev lag luam siab. Pob zeb diamond hmoov siab hardness, zoo hnav tsis kam, dav siv hauv kev txiav, sib tsoo, drilling, polishing thiab lwm yam. Nrog rau kev txhim kho thiab kev vam meej ntawm kev tshawb fawb thiab thev naus laus zis, kev lag luam xav tau rau pob zeb diamond hmoov tau txais kev loj dua thiab loj dua, thiab cov kev xav tau zoo tau nce siab dua. Rau cov hmoov pob zeb diamond, tus nqi ntawm impurities hauv cov hmoov pob zeb diamond ncaj qha cuam tshuam rau cov khoom zoo thiab kev ua haujlwm ntawm cov hmoov.
Diszable hom
Cov impurities ntawm pob zeb diamond hmoov hais txog cov khoom tsis yog cov pa roj carbon monoxide hauv cov hmoov pob zeb diamond, uas tuaj yeem muab faib ua granular sab nraud impurities thiab sab hauv impurities. Cov impurities sab nraud ntawm cov khoom feem ntau yog qhia los ntawm cov khoom siv raw thiab cov txheej txheem ntau lawm, suav nrog silicon, hlau, npib tsib xee, calcium, magnesium thiab cadmium; Cov impurities sab hauv ntawm cov khoom yog nkag rau hauv cov txheej txheem synthesis ntawm pob zeb diamond, feem ntau suav nrog hlau, npib tsib xee, cobalt, manganese, cadmium, tooj liab, thiab lwm yam. Impurities hauv pob zeb diamond hmoov yuav cuam tshuam rau cov khoom ntawm cov hmoov av, kom cov khoom tsis yooj yim tawg. Hlau, npib tsib xee thiab lwm yam impurities tseem yuav ua rau cov khoom tsim cov qib sib txawv ntawm cov hlau nplaum, daim ntawv thov hmoov.
, Impurity detection method
Muaj ntau txoj hauv kev nrhiav kom pom cov ntsiab lus impurity ntawm pob zeb diamond hmoov, nrog rau txoj kev hnyav, atomic emission spectroscopy, atomic absorption spectroscopy, thiab lwm yam, ntau txoj kev tshawb nrhiav tuaj yeem xaiv raws li qhov xav tau sib txawv.
Gravimetric tsom xam
Txoj kev hnyav yog tsim rau kev tsom xam thiab nrhiav kom pom tag nrho cov ntsiab lus impurity (tsis suav nrog cov khoom siv hluav taws xob tsis zoo ntawm qhov kub kub). Cov cuab yeej tseem ceeb suav nrog mafer rauv, ntsuas qhov sib npaug, cov plooj (porcelain crucible), tshuab ziab khaub ncaws, thiab lwm yam. Cov qauv ntsuas rau cov ntsiab lus tsis huv hauv cov khoom siv micropowder yog cov qauv kub kub kub: piv txwv raws li cov kev cai thiab coj cov qauv ntsuas mus rau hauv lub crucible nrog qhov hnyav tas li, tso lub crucible uas muaj cov qauv coj mus kuaj hauv lub cub tawg tso cai + 10 ℃ rau qhov hnyav. 20 ℃), qhov hnyav seem yog lwm pawg, thiab qhov hnyav feem pua yog xam.
2, atomic emission spectrometry, atomic absorption spectroscopy
Atomic emission spectroscopy thiab atomic absorption spectroscopy yog qhov tsim nyog rau kev soj ntsuam zoo thiab ntau yam ntawm cov kab mob.
(1) Atomic emission spectrometry: Nws yog ib qho kev tshuaj ntsuam xyuas zoo los yog ntau qhov kev ntsuam xyuas ntawm cov yam ntxwv hluav taws xob kab uas tsim los ntawm kev hloov hluav taws xob los ntawm lub zog sab nraud ntawm ntau yam tshuaj lom neeg. Txoj kev atomic emission tso cai rau kev tsom xam txog li 70 lub ntsiab lus. Feem ntau, kev ntsuas ntawm cov khoom hauv qab 1% tuaj yeem ntsuas qhov ppm qib kab hauv pob zeb diamond hmoov. Txoj kev no yog qhov ntxov tshaj plaws tsim thiab tsim hauv kev tshuaj xyuas qhov muag. Atomic emission spectrometry plays lub luag haujlwm tseem ceeb hauv kev txheeb xyuas qhov zoo thiab muaj nuj nqis ntawm ntau yam khoom siv niaj hnub no. Nws muaj qhov zoo ntawm ntau lub ntsiab lus ib txhij nrhiav kom pom muaj peev xwm, kev soj ntsuam ceev ceev, tsis pom kev txwv thiab qhov tseeb siab.
(2) Atomic absorption spectroscopy: Thaum cov hluav taws xob tso tawm los ntawm lub teeb ci tshwj xeeb dhau los ntawm atomic vapor ntawm lub ntsiab lus los ntsuas, nws yog absorbed los ntawm lub xeev atoms hauv av, thiab ntsuas qhov nqus nqus tuaj yeem ntsuas tau rau kev tsom xam.
Atomic absorption spectrometry thiab nws tuaj yeem sib ntxiv thiab tsis tuaj yeem hloov nrog ib leeg.
3. Yam cuam tshuam rau kev ntsuas ntawm cov impurities
1. Cov txiaj ntsig ntawm qhov ntsuas qhov ntim ntawm qhov ntsuas tus nqi
Hauv kev xyaum, nws pom tau tias qhov piv txwv ntawm cov hmoov pob zeb diamond muaj qhov cuam tshuam zoo rau qhov kev xeem. Thaum qhov ntsuas tus nqi yog 0.50g, qhov nruab nrab sib txawv ntawm qhov ntsuas yog loj; thaum tus nqi piv txwv yog 1.00g, qhov nruab nrab sib txawv me me; thaum tus nqi piv txwv yog 2.00g, txawm tias qhov sib txawv me me, lub sij hawm sim nce thiab qhov ua tau zoo txo. Yog li ntawd, thaum lub sij hawm ntsuas, qhov muag tsis pom kev nce tus nqi piv txwv tsis tas yuav txhim kho qhov raug thiab ruaj khov ntawm cov txiaj ntsig kev soj ntsuam, tab sis kuj tseem yuav txuas ntxiv lub sijhawm ua haujlwm thiab txo cov haujlwm ua haujlwm.
2. Kev cuam tshuam ntawm particle loj ntawm cov ntsiab lus impurity
Lub finer particle ntawm pob zeb diamond hmoov, lub siab dua cov impurity cov ntsiab lus nyob rau hauv cov hmoov. Qhov nruab nrab particle loj yog 3um nyob rau hauv nplua pob zeb diamond hmoov nyob rau hauv ntau lawm, vim hais tias ntawm zoo particle loj, ib co kua qaub thiab lub hauv paus insoluble cov ntaub ntawv sib tov nyob rau hauv raw cov ntaub ntawv yog tsis yooj yim mus cais, yog li nws nyob rau hauv zoo particle hmoov, yog li ua rau cov ntsiab lus ntawm impurities. Tsis tas li ntawd, qhov zoo dua qhov me me, qhov ntau hauv cov txheej txheem tsim khoom, ntau impurities rau sab nraud, xws li dispersant, daws cov kua, tsim ib puag ncig ntawm plua plav paug impurities hauv kev tshawb fawb cov hmoov coj mus kuaj impurity cov ntsiab lus, peb pom tias ntau dua 95% ntawm cov khoom ntxhib-grained pob zeb diamond hmoov, nws impurity cov ntsiab lus hauv qab no 0.50% hmoov cov khoom hauv qab no - 95%. 1.00%. Yog li ntawd, hauv kev tswj cov hmoov zoo, cov hmoov zoo yuav tsum tsawg dua 1.00%; cov ntsiab lus impurity ntawm 3um yuav tsum tsawg dua 0.50%; thiab ob qhov chaw decimal yuav tsum tau khaws cia tom qab cov ntaub ntawv impurity cov ntsiab lus hauv tus qauv. Vim hais tias nrog kev ua tiav ntawm cov tshuab tsim cov hmoov, cov ntsiab lus impurity hauv cov hmoov yuav maj mam txo, ib feem ntawm cov ntsiab lus impurity ntawm cov hmoov ntxhib yog qis dua 0.10%, yog tias tsuas yog ib qhov chaw ntawm tus lej khaws cia, nws qhov zoo tsis tuaj yeem paub qhov txawv.
Tsab ntawv no tau muab los ntawm "superhard khoom network"
Post lub sij hawm: Mar-20-2025
