Dear forum,
please may I ask for yor help/opinion on this material.
These are flexible printed circuit boards from manufacturing of mobile phone parts. Material is clean no components werde mounted.
So main base metall should be copper. I assume that there are no other base metals but I`m not sure if there is some under the gold spots.
First two pictures is material I have. Last picture is only to show how they look like after assembly.
I've ~2000 pcs of these sheets. Approx. 32 kg in weight. I've done some calculation of area of obvious golden shapes.
My result is 38420 cm^2 as total golden area of whole material.
Now it depends on thicknes of gold here. And this I need a guess from experienced members of forum.
Web has very different numbers on this. Using the lowest number I could find ( 0.1 micrometer) this would equal to approx. 7 g gold.
Don't know whether it is worth the effort even on a hobby basis.
Taking fun into consideration I've had processing fingers with AP process I learned from you I would try to process it. Also with the AP process.
Please my I have your valuable thoughts.
PS.: If somebody wants to see my first button I would post a picture. It is very ugly because not melted as teached here due to lack of equipment. But I'm very proud of it. 3.5 g out of 1 kg close cut fingers.
Saved for re-refining and doing better when I have more.
please may I ask for yor help/opinion on this material.
These are flexible printed circuit boards from manufacturing of mobile phone parts. Material is clean no components werde mounted.
So main base metall should be copper. I assume that there are no other base metals but I`m not sure if there is some under the gold spots.
First two pictures is material I have. Last picture is only to show how they look like after assembly.
I've ~2000 pcs of these sheets. Approx. 32 kg in weight. I've done some calculation of area of obvious golden shapes.
My result is 38420 cm^2 as total golden area of whole material.
Now it depends on thicknes of gold here. And this I need a guess from experienced members of forum.
Web has very different numbers on this. Using the lowest number I could find ( 0.1 micrometer) this would equal to approx. 7 g gold.
Don't know whether it is worth the effort even on a hobby basis.
Taking fun into consideration I've had processing fingers with AP process I learned from you I would try to process it. Also with the AP process.
Please my I have your valuable thoughts.
PS.: If somebody wants to see my first button I would post a picture. It is very ugly because not melted as teached here due to lack of equipment. But I'm very proud of it. 3.5 g out of 1 kg close cut fingers.
Saved for re-refining and doing better when I have more.
