forfaringssett and asked for anodisk avgradning of foreemal of copper or copper alloy

摘要

Articles of copper or copper alloy are anodically deburred in an acid solution (pH not above 6.5) containing: water 100 to 300 g/l; alkali sulphamate 50 to 150 g/l; polyhydric alcohol 400 to 800; alkali nitrate 50 to 150 g/l. The bath voltage is to be within the range of 5 to 30 volts, and the current density (at the anode) is to be within the range of 2 to 50 amperes per square decimeter.