Sand mold sprue of cast steel and cast iron, sprue of molten mold casting, appearance is gray-black powder, non-toxic and odorless, without harmful ingredients.
When the molten steel (iron) level rises to more than half the height of the sprue, a sufficient amount should be added in time, and for castings with multiple sprues, they should be added in order from far to near. After covering, no point pouring should be done to prevent damage to the covering surface and loss of function. The dosage is 1%-3% of the sprue weight. The product must be stored in a fireproof and moisture-proof environment.
1. This product has high calorific value and outstanding insulation performance. After use, it can keep the steel in the sprue in a liquid state for a longer period, so as to continuously replenish the volume shrinkage of the casting during the solidification process, making the final shrinkage hole located above the sprue, ensuring that the casting has a dense structure without shrinkage holes and looseness, significantly improving the yield rate of castings.
2. After using this product, the sprue shrinks and forms a shell with a "U" or "dish" shape at the upper end. Its excellent feeding performance can save 30%-50% of molten steel (iron) in the sprue weight during pouring, maximizing the process output rate.
|
Main Chemical Composition |
|||||
|
SiO2 |
AI2O3 |
Fe2O3 |
CaO |
C |
AI |
|
≥10 |
≥12 |
≥10 |
≥11 |
≥15 |
≥5 |
|
Physical Properties |
|||
|
Melting Point℃ |
Expansion Multiplier |
Particle Size mm |
Moisture% |
|
≥1000 |
≥3.5 |
<1.5 |
≤0.02 |
High alumina fine powder is a powder material with alumina (Al2O3) as the main component.
A specialized, advanced refractory material designed specifically for foundry enterprises' steel...
High temperature and high strength repair material is a special material used to repair equipment and structures in high temperature environments.
Lining coating is a functional material used on the surface of high-temperature equipment or facilities...
Plastic is an amorphous refractory material used in hot metal ladle.
