Hey guys, hope you’re all doing wel
Im casting with castable wax resin models, and havent had much trouble yet.
My burnout tops at 780 degrees c for 4 hours, and i always use quite a large main sprue, so i assume the ash will “find its way out”
How is this ash defects shown on my casts? Maybe i haven’t recoqnized it was the ash, and just though it was a problem between flask & metal temp.
Read this on the forum by @ Shawna Kulpa
Anyone got pics of this kind of “open-loop system”… And i assume they blow the air into main sprue AFTER the investment has hardend at high temps, in order for the investment not to crack?
Im a bit concerned about thermal chocks and cracking in investment if i blow air into my mold when its hot?
Best regards William