18538276310
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2019-09-23
Main components:
Aluminum-silicon carbide-based castables for iron runner of blast furnace tapping yard are made of high-quality compact corundum, brown corundum, bauxite, silicon carbide and carbon materials, with a variety of organic and inorganic binders and additives as the main raw materials.
Main features:
This kind of castable has the characteristics of fast setting time, strong resistance to erosion and scouring of molten iron and slag, good thermal shock resistance, small volume change of reburning, no slag iron, strong oxidation resistance, easy construction and long service life. The refractory materials used in blast furnace casting house include main iron runner castable, iron runner branch castable, slag runner castable, slag skimmer castable, swing downspouting castable, permanent lining castable, runner cover castable and iron runner quick dry castable.
Product Parameter:
Product Model | XPTG-N1 | XPTG-N2 | XPTG-N3 | XPTG-N4 | |
chemical composition/% | Al2O3/% | 56~60 | 70~75 | 70~72 | 65~68 |
SiC/% | 15~30 | 12~15 | 12~15 | 15~18 | |
bulk density(g/cm3) | 110℃×24h | 2.9~3.0 | 2.9~3.0 | 2.75~2.80 | 2.65~2.70 |
1450℃×3h | 2.85~2.90 | 2.85~2.95 | 2.70~2.75 | 2.60~2.65 | |
compressive strength/(MPa) | 110℃×24h | 35~40 | 35~40 | 30~35 | 25~30 |
1450℃×3h | 40~50 | 50~60 | 35~40 | 35~40 | |
bending strength(MPa) | 110℃×24h | 4.0~6.0 | 5.0~6.0 | 5.0~6.0 | 5.0~7.0 |
1450℃×3h | 7.0~10.0 | 8.0~10.0 | 7.0~9.0 | 7.0~8.0 | |
thermal bending strength (MPa) | 1450℃×2h | >2 | >3 | >2 | >1.5 |
post-fire line change /% | 1450℃×3h | +(0.1~0.2) | + (0.1~0.2) | + (0.1~0.25) | + (0.1~0.25) |
applicable parts | main runner slag part | main runner iron part | iron runner branch | slag runner | |
