STOPPER REFRACTORIES FOR STEEL TEEMING FROM LADLE ACCORDING TO DSTU GOST 5500:2006
PBSP-88 (INSERT)
Refractory stopper products for steel teeming from ladle.At the customer request nonfired insert is subject to paraffin treatment.
The products are wrapped into cardboard or paper, wrapped with stretch-film and laid into wooden case with laid along the perimeter cardboard. The layers are laid with cardboard or liner, and the gaps between the products, from case walls and under the cover are filled with wood chips or flakes.
Parameter description | Value |
---|---|
Type | high-magnesia |
Group | periclase (MgO ≥ 85%) |
Refractoriness value | fire resistance (1580 to 1770°С) |
Porosity degree | average dense (Ptot 20-30%) |
Heat treatment method | unburnt |
Molding process | semidry forming |
Binding type 1 | with inorganic binders |
Binding type 2 | ceramic |
Intended purpose | technology |
scope of application | for steel teeming from ladle |
Reference document for product properties | Stopper refractories for steel teeming from ladle according to DSTU GOST 5500:2006 |
Reference documents for product dimensions | Stopper refractories for steel teeming from ladle according to DSTU GOST 5500:2006 |
Parameter description | Value |
---|---|
Apparent specific gravity, g/сm3 | ≥ 2,65 |
Humidity weight content, % | ≤ 0,6 |
Interconnected porosity, %, not more than | 21 |
MgO, % | ≥ 88 |
Form | Article No. | Additional information | Photo |
---|---|---|---|
insert | No.35 (d 35mm) | Insert used in combination with nozzles No.No.25, 26 and plug No.9. | |
No.36 (d 40mm) | Insert used in combination with nozzles No.No.27, 28, 29, 30, 33, 34 and plugs No.10, 11. | ||
No.36 (d 60mm) | Insert used in combination with nozzles No.No.27, 28, 29, 30, 33, 34 and plug No.10, 11. |