Ufa wa diamondi wapakhomo wokhala ndi zambiri | mtundu wa diamondi imodzi ya kristalo ngati zopangira, koma | lembani zonyansa zambiri, mphamvu zotsika, zitha kugwiritsidwa ntchito pakufuna kwazinthu zamsika zotsika. Opanga ochepa a diamondi apanyumba amagwiritsa ntchito mtundu wa I1 kapena Sichuan mtundu umodzi wa diamondi ngati zopangira kuti apange ufa wa diamondi, kukonza kwake kumakhala kokulirapo kuposa ufa wamba wa diamondi, womwe ungakwaniritse zofuna za msika wapamwamba kwambiri. Daimondi ufa mkulu kuuma, zabwino kuvala kukana, chimagwiritsidwa ntchito kudula, akupera, kubowola, kupukuta ndi madera ena. Ndi chitukuko ndi kupita patsogolo kwa sayansi ndi ukadaulo, kufunikira kwa msika wa ufa wa diamondi kukukulirakulira, ndipo zofunikira zamtundu zikukwera. Kwa ufa wa diamondi, kuchuluka kwa zonyansa mu ufa wa diamondi kumakhudza mwachindunji khalidwe la mankhwala ndi ntchito ya ufa.
Mitundu yotayika
Zonyansa za ufa wa diamondi zimatanthawuza zigawo zopanda mpweya mu ufa wa diamondi, zomwe zingagawidwe mu zonyansa zakunja za granular ndi zonyansa zamkati. Zonyansa zakunja za particles makamaka zimayambitsidwa ndi zopangira ndi kupanga, kuphatikizapo silicon, chitsulo, nickel, calcium, magnesium ndi cadmium; zonyansa zamkati za particles zimayambitsidwa mu kaphatikizidwe ka diamondi, makamaka kuphatikizapo chitsulo, faifi tambala, cobalt, manganese, cadmium, mkuwa, etc. Zodetsedwa mu ufa wa diamondi zidzakhudza malo a pamwamba pa particles ufa, kotero kuti mankhwala si ophweka kumwazikana. Iron, faifi tambala ndi zonyansa zina zipangitsanso kuti mankhwalawa atulutse magawo osiyanasiyana a magnetism, kugwiritsa ntchito ufa.
, Njira yodziwira zonyansa
Pali njira zambiri zodziwira zonyansa za ufa wa diamondi, kuphatikiza njira ya kulemera, mawonekedwe a atomiki otulutsa ma atomiki, mawonekedwe a ma atomiki, ndi zina zambiri, njira zodziwira zitha kusankhidwa malinga ndi zofunikira zosiyanasiyana.
kusanthula gravimetric
Njira yolemetsa ndiyoyenera kuwunika ndikuzindikira zonyansa zonse (kupatula zinthu zomwe zimatha kuyaka pa kutentha koyaka). Zida zazikulu zikuphatikizapo mafer ng'anjo, analytical balance, porcelain crucible, dryer, etc. Njira yoyesera ya zonyansa muyeso ya micropowder ndi kutentha kwambiri kutentha njira yotayika: chitsanzo malinga ndi zomwe zaperekedwa ndi kutenga chitsanzo choyesera mu crucible ndi kulemera kosalekeza, ikani crucible munali chitsanzo kuti ayesedwe mu ng'anjo yololedwa 000000000 ℃ ℃ 20 ℃), kulemera kotsalira kumakhala kosiyanasiyana, ndipo kulemera kwake kumawerengedwa.
2, ma atomiki emission spectrometry, ma atomiki mayamwidwe spectroscopy
Ma spectroscopy a atomiki ndi mayamwidwe a atomiki ndi oyenera kuwunika kwapamwamba komanso kuchuluka kwa zinthu zotsatsira.
(1) Atomic emission spectrometry: ndi njira yowunikira yowunikira bwino kapena kuchuluka kwa mzere wa radiation wopangidwa ndi kusintha kwa ma elekitironi kuchokera ku mphamvu yakunja ya zinthu zosiyanasiyana zamakemikolo. Njira yotulutsa ma atomiki imalola kusanthula zinthu pafupifupi 70. Nthawi zambiri, kuyeza kwa zigawo zomwe zili pansi pa 1% zimatha kuyeza molondola kuchuluka kwa ppm mu ufa wa diamondi. Njirayi ndiyomwe idapangidwa koyamba ndikupangidwa pakuwunika kwa kuwala. Atomic emission spectrometry imakhala ndi gawo lofunikira pakuwunikira komanso kuchuluka kwa zida zamakono zosiyanasiyana. Zili ndi ubwino wazinthu zambiri zomwe zimagwiritsidwa ntchito panthawi imodzi, kufulumira kusanthula mofulumira, malire otsika komanso olondola kwambiri.
(2) Atomic mayamwidwe spectroscopy: pamene ma radiation otulutsidwa ndi gwero linalake la kuwala adutsa mu nthunzi wa atomiki wa chinthu chomwe chiyenera kuyezedwa, amatengeka ndi maatomu apansi, ndipo digiri ya mayamwidwe imatha kuyezedwa kuti ifufuze.
Atomic mayamwidwe spectrometry ndipo akhoza kuthandizana ndipo sangathe m'malo wina ndi mzake.
3. Zinthu zomwe zimakhudza miyeso ya zonyansa
1. Zotsatira za voliyumu yoyeserera pamtengo woyeserera
Pochita, zimapezeka kuti sampuli za ufa wa diamondi zimakhudza kwambiri zotsatira za mayeso. Pamene chiwerengero cha sampuli ndi 0,50g, kusiyana kwapakati pa mayeso kumakhala kwakukulu; pamene chiwerengero cha sampuli ndi 1.00g, kupatuka kwapakati kumakhala kochepa; pamene chiwerengero cha sampuli ndi 2.00g, ngakhale kuti kupatuka kuli kochepa, nthawi yoyesera imawonjezeka ndipo mphamvu imachepa. Chifukwa chake, pakuyezera, kuchulukitsa mwachimbulimbuli kuchuluka kwa zitsanzo sikungowonjezera kulondola komanso kukhazikika kwa zotsatira zowunikira, komanso kudzakulitsa nthawi yogwira ntchito ndikuchepetsa magwiridwe antchito.
2. Chikoka cha tinthu tinthu kukula pa zonyansa okhutira
Pamene tinthu ta ufa wa diamondi timakhala tochepa kwambiri, m'pamenenso kuti ufawo umakwera kwambiri. Wapakati tinthu kukula ndi 3um mu zabwino diamondi ufa kupanga, chifukwa chabwino tinthu kukula, ena asidi ndi m'munsi zinthu insoluble wothira zopangira si zophweka kupatukana, choncho zikukhazikika mu tinthu ufa wabwino, motero kuwonjezera zili zosafunika. Komanso, bwino kwambiri tinthu kukula, m'pamenenso mu kupanga ndondomeko, ndi zonyansa kwambiri kunja, monga dispersant, kuthetsa madzi, kupanga chilengedwe cha fumbi kuipitsidwa zosafunika mu phunziro la ufa chitsanzo zonyansa okhutira mayeso, tinapeza kuti oposa 95% ya coarse-grained diamondi ufa mankhwala, zonyansa zake zili pansipa 0.50 mu ufa okhutira m'munsimu 0.50% ufa wochuluka kuposa 0.50% ufa wochuluka kuposa 0.50% ufa wodetsedwa. 1.00%. Choncho, mu ulamuliro waubwino wa ufa, ufa wabwino uyenera kukhala wosakwana 1.00%; zonyansa za 3um ziyenera kukhala zosakwana 0.50%; ndipo malo awiri a decimal ayenera kusungidwa pambuyo pa zonyansa zomwe zili muyeso. Chifukwa ndi kupita patsogolo kwa teknoloji yopanga ufa, zonyansa zomwe zili mu ufa zidzachepa pang'onopang'ono, gawo lalikulu la zonyansa za ufa wouma zimakhala pansi pa 0.10%, ngati malo amodzi okha asungidwa, khalidwe lake silingathe kusiyanitsa bwino.
Nkhaniyi yachokera ku "superhard material network"
Nthawi yotumiza: Mar-20-2025
