classification

PRODUCTS
PRODUCTS
  • Alumina hollow ball brick-alumina insulating brick
  • Application:
    Used for lining heat-protection material of industrial furnaces in industries such as metallurgy, petrochemical, magnetic materials, powder metallurgy, machinery and electron. etc
    Feature:
    Add composite binding agent based on the host materials alumina hollow ball and a-Al203, vibration and pressurization for molding, it is of high temperature of load soften-ing, small vibration burning wire, which is the ideal lining material of industrial furnace below 1800C
    Physical and chemical indicators:

    Name of commodity
    Performance and index
    Alumina hollow ball product Alumina insu lat ing brick
    Bulk density £¨¡æ£© 1£®2¡ª1£®5 1 1.2
    Compressive strength at ambient temp Mpa 10 4 5
    Linear change on reheating ¡æ¡Áhr £¥ ¡Ü 1800¡Á40.3 1650¡Á60.4 1650¡Á60.3
    Apparent porosity £¥ 60-70 ¡¡ ¡¡
    A12O3£¥ ¡Ý 98.5 88 92
    SiO2£¥ ¡Ü 0.2 ¡¡ ¡¡
    Fe2O3 £¥ ¡Ü 0.1 0.4 0.4
    Heat conductivity¡Ü350¡À20¡æw£¯m.k 0.6-0.9 0.5 0.65
    Highest use temp ¡æ 1800 1500 1550
    Load softening temp ¡æ 1750 ¡¡ ¡¡
    Heat shock stability ¡æ£¯times 1100 Air cooling£¾20 ¡¡ ¡¡

    The actual parameters can be adjusted according to the requirements of users.

Dongtai Huanghai Refractcries Factory all right reserved
Contact:Zhai Zhi Hui 18962038246¡¡Tel:0086-0515-85545098
Fax:0086-0515-85541768¡¡Email:zzh@hhnhcl.com¡¡Website:http://www.hhnhcl.com
Add£ºDongtai Hougang Town Industrial Park, Jiang Su Province¡¡Record number:Su IC standby 10223517¡¡Technical support:Sike Network