Low cement castable refers to the new castable with little binding dose. The key is to use ultrafine particles of no more than 1μm.
Its thermal shock resistance, slag resistance and erosion resistance are significantly improved, surpassing similar refractory bricks. Further reduction of binder content can produce ultra-low cement castable and cement-free castable. Low cement castable refers to castable with low cement content.
The cement content of refractory cement castable is generally 15% to 20%, and the cement content of low cement castable is about 5%, and some even reduce to 1% to 2%. The purpose of reducing the amount of cement is to improve the fire resistance of castable.
(1) Low density
(2) High strength, small amount of water
(3) Wear resistance and erosion resistance
(4) Low porosity
(5) Good volume stability
(6) Good corrosion resistance
Metallurgical industry, petrochemical industry, machinery manufacturing industry, electric power industry and building materials industry
|
Item |
Index |
||
|
JD-170 |
JD-175 |
||
|
Al2O3（%≥） |
65 |
75 |
|
|
CaO（%≥） |
2.5 |
2.58 |
|
|
Body density（g/cm3） |
2.5 |
2.7 |
|
|
Flexural strength(≥Mpa) |
110℃×24h drying |
7.8 |
8.9 |
|
110℃×24h burned |
10 |
15 |
|
|
Compressive strength(≥Mpa) |
110℃×24h drying |
36 |
45 |
|
110℃×24h burned |
68 |
77 |
|
|
Creep rate（%） |
1350±0.5 |
1350±0.5 |
|
|
Refractoriness（℃≤） |
1700℃ |
1750℃ |
|
The stainless Tz series slag agglomerator is non-toxic and odorless, free of harmful components.
A specialized, advanced refractory material designed specifically for foundry enterprises' steel...
