wehewehe
ʻO ka vermiculite kahi mineral silicate inorganic kūlohelohe, i hana ʻia e kekahi nui o ka hydration granite (i hana pinepine ʻia me ka asbestos), ke ʻano like me ka mika. ʻO nā ʻāina hana nui o ka vermiculite ʻo Kina, Russia, ʻApelika Hema, ʻAmelika Hui Pū ʻIa, a pēlā aku. vermiculite e like me ke kala. Ma hope o ka calcination wela kiʻekiʻe, hiki i ka nui o ka vermiculite maka ke hoʻonui wikiwiki e 6 a 20 mau manawa.
The expanded vermiculite has a layered structure and a specific gravity of 60-180kg/m3. It has strong insulation and good electrical insulation properties, with a maximum usage temperature of 1100°C. Expanded vermiculite is widely used in industries such as insulation materials, fire-resistant materials, seedling cultivation, flower planting, tree planting, friction materials, sealing materials, electrical insulation materials, coatings, plates, paints, rubber, refractory materials, hard water softeners, smelting, construction, shipbuilding, chemistry, etc...
Nā haku mele
SiO2(%) |
Al2O3(%) |
Kiʻekiʻe(%) |
MgO(%) |
Fe2o3(%) |
S(%) |
C(%) |
40-50 |
20-30 |
0-2 |
1-5 |
5-15 |
<0.05 |
<0.5 |
Nui
0.5-1mm, 1-3mm, 2-4mm, 3-6mm, 4-8mm,
20-40mesh, 40-60mesh, 60-80mesh, 200mesh, 325mesh, a i ʻole e like me ke noi.
Nā noi
Pūʻolo
Awa Hoouna
ʻO ke awa ʻo Xingang a i ʻole ke awa ʻo Qingdao, Kina.