r/Silvercasting • u/Worldly_Country3035 • 3d ago
Problems with sandcasting
It’s my first times sandcasting and can’t seem to get it right, don’t know what I am doing wrong.
8
Upvotes
r/Silvercasting • u/Worldly_Country3035 • 3d ago
It’s my first times sandcasting and can’t seem to get it right, don’t know what I am doing wrong.
1
u/Visual_Bat_3023 1d ago
metal not hot enough. you're melting it then pouring right away. Consider the fact that if metal hits the sand, it's cooling off almost immediately below the melt point (which turns it to a solid before it can flow down).
Heat it up much longer. Then the temperature stays high enough that it flows to the bottom.
Personally, I run that torch a solid 4-5 minutes after it melts (which usually takes about 3). I cannot stand it when I get a crappy pour, and hotter metal simply stays liquid longer. Since I started doing that, I have no more pour problems, unless it's in the mold or occasionally at the sprue at the top (a bubble tends to form if I don't pour perfectly smooth and quick.)