Unshaped Refractory

Zibo Yumin Base Pledge has many types of unshaped refractory materials with good usage properties, mainly including light alkali-resistant castables, high-strength refractory castables, steel fiber reinforced refractory castables, alkali-resistant refractory castables, clay and high alumina refractory cast Materials, aluminum-magnesium spinel castables, as well as various ramming materials, hot supplements, are widely used in thermal equipment such as cement kiln, glass kiln, metallurgy, chemical industry and so on.

Category:

Zircon ramming materials and castables:

 

Products

 

 Al2O3 ZrO2 SiO2 Fe2O3 Refractories Apparent Porosity Bulk Density Crushing Strength
≧  % ≧   % ≦ % ≦ % ≧   ℃ ≦ % ≧g/cm3 ≧MPa
RZS-60 - 60 38 0.2 1770 18 3.3 45
RZS-64 - 64 34 0.2 1790 18 3.45 50
RZS-32 48 32 17 0.3 1750 18 2.9 50
RZS-20 62 20 14 0.2 1750 18 3 50

 

Lightweight Castables:

Index Al2O3 CaO Drying at 110℃ Bulk Density ≦g/cm3 Crushing Strength ≧ Reheating Linear Change ≦％ Limit temperature of Application％
Grade ≧ ％ ≦％ Drying at 110℃ After sintered at 1000℃
LWC-1.2 34 10 1.2 6 4 1000℃±0.6 1200
LWC-0.8 32 17 0.8 2 1.2(800℃) 800℃±0.6 1000

 

Fireclay & High Alumina Castable

Classification Clay Bonded Castable Refractory Cement bonded castable refractory Low Cement bonded Castable Refractory Phosphate bonded Castable Refractory Sodium Silicate bonded Castable Refractory
Type NL-70 NL-60 NL-45 GL-85 GL-70 GL-60 GL-50 GL-42 DL-80 DL-60 LL-75 LL-60 LL-45 BN-40
Index Al2O3  % ≧ 70 60 45 80 70 60 50 42 80 60 75 60 45 40
CaO  %   ≦ - - - 6 6 8 8 8 2.5 2.5 - - - -
Refractories   ≧ 1760 1720 1700 1780 1720 1700 1660 1640 1780 1740 1780 1740 1700 -
Linear Change Rate after Sintered ≦ ±1%( keep warm 3h ) 1450 1400 1350 1500 1450 1420 1400 1350 1500 1500 1500 1450 1350 1000
110±5℃
after Drying

 

 Crushing Strength MPa≧ 10 9 8 35 35 30 30 25 40 30 30 25 20 20
Modulus of rupture MPa≧ 2 1.5 1 5 5 4 4 3.5 6 5 5 4 3.5 -

 

High Strength Castable

Item Index
GQ-92 GQ-85
Al2O3  % ≧ 92 85
CaO  %   ≦ 4.0 4.0
Crushing of strength after different temperature handel Mpa ≧ 110℃×24h 80 60
1100℃×3h 100 70
1500℃×3h 120 100
Modulus of rupture after different temperature handel MPa ≧ 110℃×24h 8 6
1100℃×3h 9 7
1500℃×3h 10 9
Linear change rate % ≧ 1100℃×3h ±0.5 ±0.5
1500℃×3h ±0.5 ±0.5
110℃ Bulk Density       g/cm3       ≧ 2.9 2.85

 

Silica hot repairing and seal materials

Index / Product SiO2 Refractories Apparent Porosity Cold Crushing Strength Reheating Linear Change
≧％ ≧％ ≦ ％ ≧ MPa 1450℃ × 2h ％
Silica hot repairing materials 95 1700 22 30 ±0.2
Silica sealing materials 95 1700 21 25 ±0.2

Sillimanite、mullite、corundum mortars

Index / Product Sillimanite Mullite Corundum
MS-58 MM-65 MM-70 MM-80 MM-90 MM-95
Al2O3  % ≧ 58 64 68 78 90 94
Fe2O3  %   ≦ 1.0 1.2 1.2 0.8 0.4 0.3
Refractories ≧ 1770 1770 1790 1790 1800 1800
Cold modulus of rupture and bonding strength MPa ≥ Drying at 110℃ 1.0 1.0 1.0 1.0 1.0 1.0
After sintered at 1450℃ 4.0 4.0 4.0 4.0 3.5 3.0
Linear Change Rate 1450℃ × 3h ％ +1- -5 +1- -5 +1- -3 +1- -3 +1- -3 +1- -3
Bonding time （min） 1-3

High Alumina mortars

Item Index
LN-55A LN-55B LN-65A LN-65B LN-75A LN-75B LN-85A LN-85B
Refractories ≧ 1770 1770 1790 1790 1790 1790 1790 1790
Al2O3  % ≧ 55 55 65 65 75 75 85 85
Cold modulus of rupture and bonding strength MPa Drying at 110℃ 1.0 2.0 1.0 2.0 1.0 2.0 2.0 2.0
After Sintered at 1400℃ 4.0 6.0 4.0 6.0 4.0 6.0 - -
Sintered after 1500℃ *3h - - -
Bonding time ( min ) -

 

Magnesia refractory mortars

Index /product MF-92 MF-95 MF-97 MF-12
MgO % 92 94.5 96.5 75
ZrO2 % -- -- -- 12
Refractories  ≧  ℃ 1790 1790 1800 1800
Bonding time (min ) 1-3

 

Fireclay refractory mortars

Item NN-30 NN-38 NN-42 NN-45A NN-45B
Refractories ≧ 1630 1690 1710 1730 1730
Al2O3   ≧ 30 38 42 45 45
Cold modulus of rupture and bonding strength MPa Drying at 110℃ 1.0 1.0 1.0 1.0 2.0
After sintered 1200℃× 2h 3.0 3.0 3.0 3.0 6.0
Refractories under Load 0.2MPa ---- 1200
Bonding time (  min ) 1-3

Zircon refractory mortars, Sealing material

Type / Index Al2O3 ZrO2 Fe2O3 Limit temperature Cold modulus of rupture and binding strength Mpa≧ Bonding time Grain Size
≧ ％ ≧ ％ ≦  ％ ≧  ℃ 110℃ 1400℃ min mm
MZS-63 -- 62.5 0.2 1750 2.0 6.0 60-180 0.3 - 0
MZS-65 -- 64.6 0.2 1800 2.0 6.0 60-180 0.3 - 0
MAZS-30 50 30 0.3 1650 2.0 6.0 60-180 0.3 - 0
MZM-20 66 20 0.3 1650 2.0 6.0 60-180 0.3 - 0
MAZS06P 50 30 0.3 1650 2.0 6.0 / 0.6 - 0
MAZS04J 50 30 0.3 1650 2.0 6.0 / 0.4 - 0

 

Alumina-silica Insulating Refractory Mortars

Item High-alumina Fireclay
LGN-160 LGN-140 NGN-1200 NGN-100
Al2O3     ≧  ％ 80 60 35 -
Cold modulus of rupture and bonding strength Mpa 110℃           ≧ 1.0 0.5
After sintered ≧ 1600℃ × 3h 1400℃ × 3h 1200℃ × 4h 1000℃ × 5h
1.5 1.5 0.5 0.5
Linear Change Rate after Sintered  ％ 1600℃ × 3h 1400℃ × 3h 1200℃ × 4h 1000℃ × 5h
+0.1-3 -0.1-5
Bonding time    ( min ) 1-2 1-2
( W/m.k) Thermal Conductivity     ≦ 0.6 0.55 0.35