Continuous, computer-controlled process for the production of black chromium-plated, surfaces error free, complete animal injection moulded parts which can be made from magnesium alloys with an electrically conductive and optimally adhesive surface areas and use of this method

摘要

A method for the continuous, computer-controlled, clocked, automatic production of black chromium-plated, surfaces error free, impregnated injection molded parts made of magnesiumlegierungenq, in particular aluminum - magnesium alloys, with a uniformly distributed, adherent, abrasion-resistant, electrically conductive black chromium - protective layer, characterized in that thethe injection molded parts to be electroplated on charging racks, as well as in baths arranged continuously, under computer control, clocked, automatically cleaned, rinsed, degreased, rinsed, is activated and to be flushed,the injection-molded parts in a phosphoric acid and containing fluoride bath in order to achieve a magnesium fluoride hold strength surfaces protection film continuously, under computer control, clocked, pickled and automatically be rinsed,the injection-molded parts in an alkaline cyanide zinc bath under resolution of the magnesium fluoride hold strength surface film continuously, under computer control, clocked, chemically and automatically be rinsed with particularity,the injection molded parts pregalvanised in at least one alkaline cyanide galvanically copper bath continuously, under computer control, clocked, copper-plated and automatically be rinsed,the copper plated injection molded parts continuously, under computer control, in a clocked fashion, automatic and in an alkaline cyanide bath be activated,the copper plated, activated injection molded parts, without rinsing in an alkaline cyanide zinnbronzebad continuously, under computer control, clocked, be effected automatically, and it is rinsed,..