Corrosion damage to metallic components causes considerable economic and technical damages. The issue of corrosion and corrosion protection therefore plays an important role in technical training. The Setup allows a variety of factors that influence corrosion processes to be investigated in parallel. Eight glass vessels are available to do this. They allow different materials to be compared under different conditions. The required electrolyte solution is added to the vessels. Up to 6 specimens can be attached to the cover of each vessel and these are immersed in the solution. It is possible to connect specimens to an electrical conductor to investigate local elements and the principle of sacrificial anodes. An adjustable power pack allows an external voltage to be connected. This counters the current flow between precious and base metals in local elements. As result the corrosion rate of the more base metals is reduced.
A diaphragm pump conveys ambient air into the electrolyte solution as required. Flow control valves can be used to individually adjust the gas flow rate for each vessel. It is also possible to feed other gases provided by the laboratory into the electrolyte solution. A pH meter is included to allow the influence of the electrolyte solution on corrosion processes to be investigated and compared.
EXPERIMENTS
Corrosion behaviour of different metallic materials(rust / passivation)
Formation of local elements
Influence of pH value of the electrolyte solution
Influence of salt concentration in the electrolyte solution
Oxygen corrosion
SPECIFICATION
Investigation of corrosion and corrosion protection measures
8 electrolyte vessels with covers and 6 specimen holders each
Adjustable power pack for application of external voltage
Air supply via diaphragm pump
Reversing valve for air or external gas supply
Adjustment of gas flow rate for each vessel using flow control valves
Recording of pH value of electrolyte solutions using manual unit
Pressure range for external gas supply: 0.2…1.0bar
