Hello Again Kamkat,

I am not so sure that your problem is so very different from that in the referenced thread.

Your problems seem to be :

1) Varying tensile strength or temper.

2) Varying springiness of the product which is again varying tensile strength or temper.

Your problem seems to be in your resistance annealer for one or more of many reasons. I am not even sure that resistance annealing is the actual recommended method for full or partial annealing of brass wire. You may indeed be on a very sharp slope portion of the graph of the temper vs annealing speed for any particular amperage and gauge size.

How much experience do you have in this process anyway?

What kind of resistance annealer do you have? Make and model please.

What does your annealer manual say the differential speeds should be for copper across the preheat and 2 annealing sheaves and at what speed is this to be set up at?

I still think you should be talking with Niehoff and SAMP. Now.

Sincerely,

Peter J. Stewart-Hay

Principal

Stewart-Hay Associates

www.Stewart-Hay.com