Fused cast AZS block
Introduction
Product Name
| Fused Cast AZS Block
|
Raw Material | High pure zircon sand, industrial alumina, silica |
Common Standard | AZS 33#, AZS 36#, AZS 41# |
Brand | HCR |
Certification | ISO09001 |
Shape | Block |
Size | Standard size & Customized size |
Usage | Used in glass furnace as tank wall, channel brick, pave brick, tuck stone, nozzle brick, doghouse, dam wall etc. |
Features
1) High refractoriness under load
2) Low apparent porosity
3) Well cold crushing strength
4) Good mechanical strength
5) Null pollute glass liquid
6) Longer service than others since we use totally new raw material
Physical & Chemical
Chemical Composition( % ) | AZS #33
| AZS #36
| AZS #41
|
ZrO2 | ≥ 32.5 | ≥ 36 | ≥ 40.5 |
SiO2 | ≤ 15.5 | ≤ 14.0 | ≤ 12.5 |
Al2O3 | Remains | Remains | Remains |
Na2O | ≤ 1.4 | ≤ 1.6 | ≤ 1.2 |
Fe2O3 + TiO2 | ≤ 0.25 | ≤ 0.25 | ≤ 0.25 |
Physical characters |
|
Volume density (hardest part) | ≥ 3.80 | ≥ 3.85 | ≥ 4.05 |
Cold crushing strength (MPa) | ≥ 300 | ≥ 300 | ≥ 300 |
Exudation Temp. of glass phase （℃） | ≥ 1400 | ≥ 1410 | ≥ 1420 |
Refractorinessunder load of beginning (0.2MPa) | 1700 | 1700 | 1700 |
Corrosion Resistance to glass melt 1300℃x10h(mm/24h) | 1.5 | 1.0 | 0.7 |
Bulk density (g/cm3 ) | PT | 3.42 |
| ≥ 3.55 |
| QX | 3.45 |
| ≥ 3.55 |
| ZWS | 3.65 | ≥3.65 | ≥3.85 |
| WS | 3.70 | ≥ 3.75 | ≥ 3.95 |
Crystalline phase composition ( % ) |
|
Baddeleyite monocrystal | 32 | 35.5 | 40 |
Glass phase | 20 | 19 | 17 |
Corundum | 47 | 44 | 42 |
Note: Apply to the products of weight more than 50 kg |
Casting Methord
PT: Normal casting, cavities are located under the casting scar
QX: Oriented casting, cavities are located at the rear bottom side
ZWS: Reinforced casting, with little cavities which located at the bottom of block
WS: Total filling, no cavity since the cavity zone be cut off
There still have other casting methods like RX, RL, RA, etc. Huachen only chose the most proper for his clients.
Production Process
Material--Batch mixing--Melting--Casting--Insulation-- Taking out after annealing--Sample inspection--Finishing--Final inspection--Assembling, inspection--Package and dispatching
