[BC] the solder I'm using

[Cowboy]

On Thursday 22 April 2010 08:31:19 pm Ron Youvan wrote:
> Cowboy wrote:
> >   "Eutectic" means basically "as much silver as will dissolve into
> >   the molten lead when we make it."
>
>    I was taught Eutectic solder is a special alloy: 

 "Eutectic" means exactly what I wrote, while hypo-eutectic means
 anything less than the maximum that will dissolve, and hyper-eutectic
 means more than will actually dissolve, such as the crystalin silicone
 in hyper-eutectic aluminum automotive pistons, which are around
 15% silicon, where the maximum that will dissolve is around 12%.


-- 
Cowboy