Огнеупорная смесь DURACON 32

MINRO-AL CAST A44 is a tabular alumina-based refractory castable recommended for application to the inside face of coreless induction furnace coils in all melting and holding applications. MINRO-AL® CAST A44 is also suitable where grout and rings are cast as a monolith. This product offers many benefits and features, including forming a solid container for the proper support of the working lining, the ability to be electrically insulative when applied between induction coils, and a usefulness as an entirely new coil coating, or for patching existing coatings.

Product Information:
• material required 2.72 g/cm3 (170 lb/ft3);
• grain size 1.5 mm (14 mesh) and finer;
• maximum practical use temperature 1815 °C (3300 °F);
• installation method: vibration or trowel;
• procedure(s)  CL-1, CL-2, CL-4, CL-37, CL-40.
 
Temperature °C (°F)315 (600)540 (1000)760 (1400)980 (1800)
Density g/cm3 (lb/ft3)2.71 (169)2.71 (169)2.61 (163)2.71 (169)
PLC* %-0.1-0.2-0.2-0.2
МOR MPa (psi)7.0 (1010)6.8 (990)6.7 (975)4.8 (700)
HMOR MPa (psi)---3.6 (520)
Porosity % ----
*Permanent Linear Change
 
Chemical analysis:
Al2O3 95,3%
CaO 3,8%
SiO2 0,6%
Fe2O3 0,1%


Packaging information:

• 25 kg (55 lb) multi-wall paper bags;
• bulk bag packaging available upon request;
• shelf life, storage beyond 24 months not recommended. Store in a dry location to avoid moisture pickup.

Set Times & Water Requirements:
• water required (vibration cast 10-11%), (trowel 9%);
• working time (up to 45 minutes);
• initial set (1 – 3 hours);
• final set (3 – 6 hours).

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