Print PDF
Favorite
Email
Step 4Melt that Tin, for real!
Well, you should have a puddle at this point, add more metal until you've added the desired amount...
I should say, before you start, it's good to figure out by displacement the volume of metal you will need, then calculate the weight, and add by weight. Tin slumps a lot, because it shrinks when it cools, a considerable amount. Heating your mold and planning for this make this not a problem.
Tin conducts heat really well, so it melts pretty much only after the whole chunk is just barely below melting temperature... That probably doesn't make much sense on its own, but you'll notice how it doesn't melt, doesn't melt, then just slumps and goes liquid really quickly.
I should say, before you start, it's good to figure out by displacement the volume of metal you will need, then calculate the weight, and add by weight. Tin slumps a lot, because it shrinks when it cools, a considerable amount. Heating your mold and planning for this make this not a problem.
Tin conducts heat really well, so it melts pretty much only after the whole chunk is just barely below melting temperature... That probably doesn't make much sense on its own, but you'll notice how it doesn't melt, doesn't melt, then just slumps and goes liquid really quickly.
| « Previous Step | Download PDFView All Steps | Next Step » |
1
comment
|
Add Comment
|
Oct 26, 2011. 9:49 AMASTMB339
says:
For what its worth -- I buy my tin from www.metalshipper.com. They're cheaper than roto metals and sell tin "shot" which is like little bb's that melt easily and make it easier to add the right amount tin you require.
Reply
 |
Add Comment
|
