Appts. for cleaning metals which have been subjected to high-temperature processes - incorporating an acid-impregnated insulating pad which is made of polyether ether ketone fabric, and is located between the electrode and the metal undergoing cleaning

摘要

The appts. includes a pad which is made of an insulating fabric, and is placed between the electrode (10) and the metal (8) to be cleaned. It also includes a low-voltage alternating current source (2) which is connected to the metal (7) by means of the other electrode. The pad taking the form of a tubular sock (12) or a strip with a thickness of more than 1 mm is impregnated with an acid solution (18). The pad is made of a polyether ether ketone fabric with improved insulating properties.