On the utilization of aluminium and its alloys in the wine and brandy industry. (8th Report)

Abstract

It is already known from the study on anti-corrosive property of aluminium alloys against wines that the alloy is seriously attacked by wines. To materialize the practical use of aluminium in wine industry, it is essential to make such special treatment as, for example, protection of alloys by making cirtain film on its surface, development of new alloy with strong anti-corrosive property, use of agent to be added into wined for stopping the corrosive reaction of win, etc.This is a report on the experiment on the effect of anti-corrosive property of surface treatment to aluminium alloy against white wine, which has been continuously carried out for one year.The applied surface treatment methods are “Alumilite”, the “MBV” and the “Alodine”. In each method, the protictive film was attacked by white wine, when the material was kept touched for long time. But, in case of “Alodine” and “MBV” methods, the corrosion was not so hard as in the “Alumilite” method. The flaver and palate were deteriolated particularily in the “Alodine” method.By this prelimeinary testing, hovever, it was found that the Alumilite method and MBV method could be possible to be utilized in practice, if some improvement is developed for them in future.