Mica ndi imodzi mwazinthu zazikulu zopanga miyala, ndipo kristaloyo ili ndi mawonekedwe osanjikiza mkati, motero imakhala ndi kristalo wa hexagonal flake.Mica ndi mawu ambiri a mica gulu la mchere, makamaka biotite, phlogopite, muscovite, lepidolite, sericite, ndi lepidolite.
Katundu wa Ore ndi Kapangidwe ka Mchere
Mica ndi mchere wa aluminosilicate ndipo wagawidwa m'magulu atatu: muscovite, biotite ndi lepidolite.Muscovite imaphatikizapo muscovite ndi mica yochepa ya sodium;biotite ikuphatikizapo phlogopite, biotite, manganese biotite;lepidolite ndi sikelo yabwino ya mica yolemera mu lithiamu okusayidi;sericite ndi mchere wadongo wokhala ndi mikhalidwe ina ya muscovite wopangidwa bwino.M'makampani, makamaka m'makampani amagetsi, muscovite ndi phlogopite amagwiritsidwa ntchito.Zigawo zazikulu za mica ndi silicon, zotayidwa, potaziyamu, magnesium, lithiamu, crystal madzi ndi pang'ono chitsulo, manganese, titaniyamu, chromium, sodium, calcium, etc. Mica ali wangwiro cleavage ndipo akhoza peeled off. biotite ndi phlogopite ali ndi mphamvu ya maginito yofooka, ndipo mapepala ena a mica amathanso kuphatikizidwa ndi zonyansa monga chitsulo ndi manganese ndipo ali ndi mphamvu zina zofooka za maginito.Kuuma kwa Mohs ndi 2 ~ 3, kachulukidwe ndi 2.7 ~ 2.9g / cm3, mchere wodziwika bwino ndi pyrite, tourmaline, beryl, feldspar, quartz, spinel, diopside, tremolite, etc., pakati pawo chikasu Iron ore, tourmaline, spinel, diopside , etc. ali ndi mphamvu ya maginito yofooka.
Malo ogwiritsira ntchito ndi zizindikiro zaumisiri
Muscovite ali ndi zinthu zabwino zakuthupi ndi mankhwala monga mphamvu ya dielectric, kukana kwambiri, kuchepa kwa dielectric, kukana kwa arc, kukana kwa corona, mawonekedwe olimba, mphamvu zamakina, kukana kutentha kwambiri, asidi ndi kukana zamchere, chifukwa chake amagwiritsidwa ntchito kwambiri m'makampani.Ili ndi ntchito zambiri;katundu waukulu wa phlogopite mica ndi otsika pang'ono kwa muscovite mica, koma ali mkulu kutentha kukana ndi wabwino kutentha zosagwira insulating zakuthupi;fragment mica imatanthawuza dzina lachidule la mica yabwino yomwe imakumbidwa ndi zotsalira zomwe zimapangidwa pokonza ndi kugwiritsa ntchito mapiritsi.;Lepidolite, wotchedwanso phosphomica, ndi mchere zopangira lithiamu m'zigawo, ndipo sericite chimagwiritsidwa ntchito mphira, mapulasitiki, zitsulo, zodzoladzola, etc.
Processing Technology
Kupindula ndi kuyeretsedwa
Njira zopindula ndi zoyeretsera za mica zimasiyana malinga ndi chikhalidwe chake ndi mtundu wake.Flake mica nthawi zambiri amatengera kusanja pamanja, kuwongolera mikangano, kuwongolera mawonekedwe, ndi zina zambiri;mica yosweka imatengera kulekanitsa kwa mphepo ndi kuyandama, biotite ndi phlogopite zimatha kutenga maginito olekanitsa amphamvu, muscovite, lepidolite ndi sericite zili ndi mphamvu zofooka zamaginito.Zonyansa zimathanso kuchotsedwa ndi kupatukana kwamphamvu kwa maginito.
01 Kutola (kuloza) kusankha
Pa nkhope ya migodi kapena mulu wa ore pa dzenje, mica yomwe yasiyanitsidwa ndi monomer imasankhidwa, ndipo nthawi zambiri imakhala yoyenera ku mica yaikulu ya flake.
02 Kuthandizira kwamphamvu
Malinga ndi kusiyana pakati pa sliding friction coefficient of flaky mica crystal ndi rolling friction coefficient of round gangue, mica crystal ndi gangue zimasiyanitsidwa.Chimodzi mwa zida zomwe zimagwiritsidwa ntchito ndi slant plate sorter.
03 Kusintha kwa mawonekedwe
Malingana ndi maonekedwe osiyanasiyana a mica crystals ndi gangue, kutha kudutsa muyeso wa sieve kapena dzenje la sieve panthawi ya sieving ndi zosiyana, kotero kuti mica ndi gangue zimasiyanitsidwa.
04 Kusankha kwa mphepo
Mchenga ndi miyala zikaphwanyidwa, mica imakhala ngati ma flakes, pomwe mchere wa gangue uli ngati tinthu tambirimbiri.Pambuyo pamagulu amitundu yambiri, zida zapadera zimagwiritsidwa ntchito pakulekanitsa mphepo molingana ndi kusiyana kwa liwiro la kuyimitsidwa kwa mpweya.
05 Kuyandama
Pakalipano, pali njira ziwiri zoyandama: imodzi ndikuyandama kwa mica ndi osonkhanitsa amine mu sing'anga ya acidic;ina ndi yoyandama ndi osonkhanitsa anionic mu sing'anga yamchere, yomwe imayenera kuchepetsedwa musanasankhidwe, ndipo iyenera kusankhidwa nthawi zambiri.
06 Kupatukana kwa maginito
Biotite ndi phlogopite ali ndi mphamvu maginito ofooka ndipo akhoza kusankhidwa ndi njira yamphamvu ya maginito;iron oxide ndi iron silicate zonyansa nthawi zambiri zimagwirizanitsidwa ndi muscovite, sericite ndi lepidolite, zomwe zimatha kuchotsedwanso ndi kupatukana kwamphamvu kwa maginito.Zida zolekanitsa maginito makamaka zimaphatikizapo zodzigudubuza zowuma ndi zonyowa zamphamvu zamaginito, zolekanitsa maginito ndi maginito olekanitsa maginito apamwamba.
Chotsani
Kusenda mica yaiwisi kukhala mapepala amitundu yosiyanasiyana kumatchedwa mica peeling.Pakali pano, pali njira zitatu zopenta, zomwe zimagwiritsidwa ntchito pamanja, makina ndi thupi ndi mankhwala, zomwe zimagwiritsidwa ntchito pokonza monga mapepala okhuthala, mapepala owonda, ndi chubu mica.
Akupera bwino komanso kopitilira muyeso
Pali mitundu iwiri yopangira kugaya bwino komanso kupera kopitilira muyeso wa mica, njira youma ndi njira yonyowa.Kuphatikiza pa zida zophwanyira ndi kupera, njira youma iyeneranso kukhala ndi zida monga zowonera ndi gulu la mpweya.Kupanga konyowa kumagwiritsa ntchito zida zosiyanasiyana zogaya zonyowa, ndipo ukadaulo wamphepo wonyowa ndiye njira yayikulu yachitukuko popanga ufa wa mica.
Kusintha pamwamba
Kusintha kwa pamwamba pa mica powder kungathe kugawidwa m'njira ziwiri: organic surface modified ndi inorganic surface ❖ kuyanika kusinthidwa.The kusinthidwa mica mankhwala akhoza kusintha mawotchi mphamvu zakuthupi, kuchepetsa akamaumba shrinkage mlingo, zabwino kuwala zithunzi zotsatira ndi kusintha ntchito mtengo, etc.
Nthawi yotumiza: Mar-07-2022