nkhani

Ufa wa Wollastonite, womwe ndi mchere wopangidwa bwino kwambiri, watchuka kwambiri m'magawo opanga padziko lonse lapansi chifukwa cha mphamvu zake zapadera zakuthupi ndi zamakemikolo. Wochokera ku calcium metasilicate yachilengedwe (CaSiO2)() miyala, chodzaza ndi chowonjezera ichi chimapereka phindu lalikulu mu zinthu zadothi, mapulasitiki, zokutira, zomangamanga, ndi ntchito zamagalimoto.

硅灰石粉

Mwa kapangidwe kake, wollastonite ndi mchere wa silicate womwe uli m'gulu la pyroxenoid, womwe umapanga makristalo mu dongosolo la triclinic. Khalidwe lake lodziwika bwino ndi mawonekedwe ake ofanana ndi singano/ulusi, ndi ma aspect ratios nthawi zambiri amakhala kuyambira 8:1 mpaka 30:1, ndipo ma grade apamwamba amafika mpaka 50:1. Kapangidwe ka acicular aka kamachokera ku maunyolo osatha a [SiO2].tetrahedra yolumikizidwa ndi ayoni a calcium. Mcherewo umawoneka woyera mpaka woyera pang'ono, ndi kuuma kwa Mohs kwa 4.55.5, kuchuluka kwa 2.752.9 g/cm³, ndi malo osungunuka pa 1540°C. Imapereka kukhazikika kwabwino kwa mankhwala, kuyamwa mafuta pang'ono, kusunga chinyezi chochepa, kutentha kochepa, komanso kuyera kwambiri.

Mu mafakitale, kapangidwe ka wollastonite kofanana ndi singano kamapereka mphamvu zodabwitsa. Mu zoumba zadothi, kamachepetsa kutentha kwa moto ndi madigiri 50.100°C, imafupikitsa nthawi yoyaka moto, imawonjezera mphamvu, imaletsa ming'alu, komanso imapangitsa kuti glaze ikhale yosalala. Mu mapulasitiki ndi rabala, imawonjezera mphamvu yokoka, kulimba, komanso kukhazikika kwa mawonekedwe ake pomwe imachepetsa mtengo wa zinthu. Makampani opanga zokutira amagwiritsa ntchito izi kuti awonjezere kulimba, kukana dzimbiri, komanso kuphimba, kuchepetsa kudalira titanium dioxide.

Imagwira ntchito ngati njira yotetezera chilengedwe m'malo mwa asbestos pazinthu zokangana (ma brake pads, ma clutch facings) ndi zinthu zosapsa ndi moto. Pomanga, imawonjezera mphamvu ya konkriti komanso kukana moto pomwe imachepetsa mpweya woipa wa carbon. Makampani opanga mapepala amapindula ndi kuthekera kwake kowonjezera kuonekera, kusalala, komanso kusindikizidwa. Imagwiritsidwanso ntchito mu metallurgy ngati choteteza slag komanso muulimi ngati chosinthira pH ya nthaka.

Pamene opanga akupitilizabe kugwiritsa ntchito zipangizo zokhazikika komanso zogwira ntchito bwino, ufa wa wollastonite ukupitiriza kukulitsa msika wake. Ubwino wake wapadera wa kapangidwe kake umauika ngati mchere wofunikira kwambiri pakukula kwa mafakitale amakono.


Nthawi yotumizira: Epulo-07-2026