VDI 3401 Blatt 3-1993
EC-machining; treatment of electrolyte, waste water and sludge

Standard No.

VDI 3401 Blatt 3-1993

Release Date

1993

Published By

Association of German Mechanical Engineers

Status

Withdraw

Latest

VDI 3401 Blatt 3-1993

Replace

VDI 3401 Blatt 3-1992 VDI 3401 Blatt 4-1982

Scope

Electrolyte solutions are used as active media in electrochemical removal processes. During machining, they are contaminated by, among other things, the dissolved workpiece material and their effectiveness is therefore changed. The effectiveness of the electrolytes is characterized by physical and chemical variables (e.g. concentration, pH value, specific conductivity, temperature, etc.), which must be kept constant within certain limits to ensure uniform processing results (e.g. surface quality, accuracy). The document deals with the treatment of electrolytes during mold removal during the process to maintain effectiveness as well as with the disposal of used electrolytes and resulting wastewater or sludge.*www.vdi.de/3401

VDI 3401 Blatt 3-1993 history

• 1993 VDI 3401 Blatt 3-1993 EC-machining; treatment of electrolyte, waste water and sludge
• 1992 VDI 3401 Blatt 3-1992 Elektrochemisches Formabtragen; Behandlung der Elektrolytloesungen@ Abwaesser und Schlaemme
• 1982 VDI 3401 Blatt 4-1982 Electrochemical machining; treatment of electrolytes and etching solutions@ waste waters and sludges

VDI 3401 Blatt 3-1993 EC-machining; treatment of electrolyte, waste water and sludge has been changed from VDI 3401 Blatt 4-1982 Electrochemical machining; treatment of electrolytes and etching solutions@ waste waters and sludges.