We did already double the number of bolts to 32 and used titanium bolts for strength. Our contacts are about 3” in diameter and 70 mil in width. The basic problem it seems to me is the oxide on the surfaces. Coolamp can take case of the copper oxide. According to the literature, indium oxide can be removed with weak hydrochloric acid but I don’t see what can remove the chromium oxide from the surface of stainless steel. Any suggestions there?
