For AL alloys
for AL alloys. Low odor & quick-ignition. For application to feeders in sand casting for all alloys to effectively increase the make-up effect.
Void powders are used to cover and isolate the exposed riser surfaces in open risers. In addition, exothermic reactions reduce the cooling rate of the metal in the feeders. This ensures that the feeder solidifies last and that there is always enough liquid metal available for replenishment. The pouring funnel can also be heated exothermically for replenishment purposes.
The cavity powders specially developed for the aluminum industry are available ready-to-use and are applied over the entire area of the feeder (s) after the liquid metal has been poured. The fine powder ignites automatically, then slowly burns off with the release of heat and ultimately forms a solid crust.
- reacts from approx. 600 ° C
- exothermic reacting powder
- By a high heat development after ignition, the metal is kept liquid longer and thus prevents the formation of voids
- is low smoke
- Container size 25KG bag
- Color dark gray