Stolberger Metallwerke Gmbh & Co Kg

Klaus Elbern

Albert Rumbach

Robert Leffers

A method and a system for regenerating a metal bath contaminated by mixed crystals, particularly a tin bath ( ) in a hot-dip coating process. A partial stream of the tin bath ( ) is removed from the coating tank ( ) and is first of all heated above its liquidus temperature in a heating unit ( ). Subsequently, the tin bath is conducted over a cooling unit ( ) and, while flowing through a filter ( ), is cleaned of mixed crystals coming down as a result of the cooling. The filter is a ceramic foam filter made of silicon carbide. Subsequently, the regenerated tin bath ( ) is heated in a melting tank to process temperature, and returned from there to the coating tank ( ).

Growing community of inventors

Aachen, Germany

Klaus Elbern