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Refractories Castables For Metallurgical Industry-The Monolithic Refractory For Air Stove
The Monolithic Refractory For Air Stove

Technical Data

1.the clay castable refractory GN-30 (for the bottom of air stove)

Item Max service tem. the temperature that the permanent linearchange is no more than 1% Cold crush strength Al2O3
Unit (110℃×24h)Mpa %
Index 1200 1200 ≥20 ≥30

 

2.mortar for air-stove

Item unit index
GN-1 LQ-65 NQ-45 GL-1
Refractoriness ≥ 1650 1770 1690 1750
particle size >0.5 mm ≤ 1% ≤ 1% ≤ 1% ≤ 1%
<0.076 mm ≥ 50% ≥ 50% ≥ 50% ≥ 50%
Modulus of rupture Mpa 110℃ dry Mpa ≤0.5 ≥1 ≥ 1 ≥ 1
permanent linear change % Mpa 1200℃×3h ≥ 0.8 1400℃×3h ≥4.9 1200℃×3h ≥ 2.9 1400℃×3h ≥ 1.5
Al2O3 % <0.34 ≥65 ≥ 42 ≥65
adhesive time min 1-2 1-2 1-2 1-2
conductivity W/m.k 25-30 - - <0.49
Main use the mortar for floating particle brick the high alumina mortar the clay mortar the mortar for insulating brick

 

3.the castable refractory GS-H(for the combustion gate&ball discharged gate of air stove)

Item permanent linear change % Bulk density Cold crush strength Modulus of rupture Mpa Al2O3
Unit 1500℃×3h 1500℃×3h (g/cm3) 1500℃×3h (Mpa) 1500℃×3h (Mpa) %
Index 0-1 ≥2.6 ≥55 ≥8 ≥70

4.the castable refractory DS-N(for the airflow channels of air stove)

Item permanent linear change % Bulk density Cold crush strength Modulus of rupture Mpa Al2O3
Unit 1350℃×3h 1500℃×3h (g/cm3) 1350℃×3h (Mpa) 110℃×24h (Mpa) %
Index ±0.5 ≥2.2 ≥50 ≥20 ≥55

 

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