Epoxy resin electrode - with metal coating for electroerosion machines or electrochemical processing appts

摘要

The electrodes are mfg. from Araldite resin (R.R.M.) and copper plated to the required thickness in a reproducing mould whose cavity is pre-treated with a dilute solution of stannous chloride and hydrochloric acid and then coated with a fine colloidal graphite or silver layer the working surfaces are then copper plated in an acid bath at a current density of 1-5 amp/dm2.