1. Mold Protection: Mold powder protects the mold, reducing wear and corrosion, thus extending its service life.
Functional Demolding: Mold powder facilitates smooth demolding of the casting, reducing resistance and damage during demolding.
2. Reducing Supercooling: Mold powder effectively reduces supercooling in cast iron, promoting graphite spheroidization and improving the mechanical properties of cast iron.
3. Inhibiting Carbide Formation: During the solidification process of cast iron, mold powder inhibits carbide formation, reducing defects in the casting.
4. Inoculation Effect: Mold powder has a rapid strengthening and inoculating effect, improving the microstructure and performance of the casting.
5. Eliminating Porosity and Pinholes: Mold powder eliminates porosity and pinholes on the outer surface of the cast pipe, improving the surface quality of the casting.
6. Three-stage inoculation effect: In the middle and later stages of tube mold use, when severe cracks or angular cracks may appear on the inner surface, adding a certain amount of zinc powder or aluminum powder to the tube mold powder can help solve the problem of difficult tube extraction, thus playing a three-stage inoculation role.
