Description

Place of origin:dalian
Grade：excellence
Coefficient of thermal expansion:0.*1
Category:Block tablets
Refraction coefficient:1.*2
Melting point :***0°C
Density:2.*0(g/cm3)
Whiteness:*6
PH value :8
**8cm synthetic silica
1.Technological  Characteristics
Determine the value of industrial application,silica is characteristic of the process silica hard , Mohs hardness of 6 or so ,have excellent fire resistance and acid-resistance , melting point ***0°C,the melt after cooling into a quartz glass ,crystal to crystal ,with a transparent UV light had the ability and piezoelectricity.
2.main purpose
1)tallurgical industry : mainly for the manufacture of refractories silica,smelting silicon alloys and for the flux ,Quality of pure crystalline silicon can be prepared,crystalline silicon is the main raw material for production of silicon , but also the  system alumina and silicone.
2)Glass industry manufacture of glass , silica is the main rew material ,silica can be used for ordinary and poptical glass ,may melt into a mass of pure high-quality technical glass Bricks can be used for glass furnace kiln lining.
3)Construction industry can be used as an important cornerstone of the buliding ,Can be filled with gravel for road stone and railway ballast sand can be mixed with asphalt paving ,portland cement can be made of quartz calibration material.