choosing and troubleshooting copper electroplating processes. alkaline copper solutions have better throwing power (uniform deposit thickness) than acid copper solutions. however, they cannot be used at as high a current density as acid copper. the best method is to prevent the problem in the first place.
was julia child wrong? if not who sells 3mm copper cookware and how thick is too thick? also do different pots and pans have different optimum thicknesses? for example stock pots? e. dehillerin has a line of 2.5mm-3.5mm in their downloadable catalogue but does not specify the thickness of individual items.
the problem with this process is that the holes must be extremely small to make this feasible since the copper used to to plate a via closed will also plate on all copper features on the board. (all vias and surface copper). since 1oz of copper = 1.4mils, the amount of plating required to plate closed an 8 mil drilled hole is 2.8oz.
if possible try and find one with a lid, or be prepared to buy a non-matching lid (from stainless steel). of course, thick copper like this is no longer being made, so if you want it vintage is the only way to go. i'm not a collector, nor a copper head, i just needed a 32 cm good quality pan and was willing to experiment with this.
copper thickness faq. the most common unit of measure for the copper thickness on a printed circuit board is ounces (oz). but how thick is that? it's the resulting thickness when 1 oz of copper is pressed flat and spread evenly over a one square foot area. this equals 1.37 mils (1.37 thousandths of an inch).
both problems can be avoided by hiring a well-qualified and experienced pcb manufacturing company. insufficient copper-to-edge clearance. copper is an incredibly conductive metal, which is used as an active component of pcbs. however, copper is also relatively soft and vulnerable to corrosion.
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thickness guide: all of our copper sheets are 99.9% pure copper ( alloy 110) annealed (dead soft) with a smooth commercial finish manufactured to astm-b152. 1 mil (.001 inches thick): this is very thin copper foil. it is approximately 1.5 times thicker than typical aluminum foil and is easy to cut but also easy to wrinkle.
all clad copper core vs. d5. new to chowhound? the problem with any cookware with better heat retention is slower heat response. a thick cast iron skillet is good example. and d5 cookwares are not heavier. as for copper thickness, most people put it at most 2 mm thick, may be a bit thinner. reply