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Electroforming small articles


#1

Dear Sir

I'm interesting for electroforming making small articles for
jewerly. 

 1 Test :	Taking ring wax (blue) speciment and I covered with coal

spray particles (carbon spray) for contuctivity purpose and imerssed
it in AgCN,KCN solution (kit)

Volt	   :	 0,5
Amp	 :     0,2
Duration :     6 hrs
anode	 :     silver


I got an article o,35 mm thick bat it was very toughness with 	gross

particles made

2 Test : Taking ring wax (blue) speciment and I covered with coal
spray particles (carbon spray) for contuctivity purpose .First
electroplating with Ni (Nickel solution) in order to make a substrate
of Ni.

Volt	   :	 1,4
Amp	 :     0,2
Duration :    2 hrs
anode	 :     nickel

After that I finished electroforming in AgCN,KCN solution (kit). 

Volt	   :	 0,5
Amp	 :     0,2
Duration :     3 hrs
anode	 :     silver

The result was good,concerning the surface and particles made,but
with tensile strenght and elongation is bad.It was broken very 	easy.
 
 	So if you please,can you suggest me a procedure (Volt,Amp,time )
with your materials and solutions in order to get a proper in
strenfth electroformed silver and gold articles 	 	 

Thank you.

Rgrds	Danos Panayiotis
e-mail	 : @pjd
Adrs	 : HAN 15 - 11525 
Athens-Greece
Phone	: 01-6918128