At the moment, aluminium prices are at a continuing high. A tonne of aluminium currently costs over 2,400 dollars. This is an increase of about 20% compared to the previous year. In addition to Chinese attempts to introduce aluminium to the market, the goal of lowering emissions is also leading to rising prices. Although the
Due to the pandemic situation and the insecurity about possible restrictions, the organiser of the ALUMINIUM Fair Trade decided to not hold the world’s leading trade fair for aluminium. Instead, there will be an ALUMINIUM Business Summit on 28th and 29th September 2021, at which the most important topics of the industry will be discussed.
The solution to a problem in chemical pre-treatment during anodising can also be simple sometimes. For example, the level of the bath can be significant for good or insufficient colouring, if we look at electrolytic colouring with tin salts. Ideally, the electrolytic tin dye bath (e.g. Alficolor 677) produces homogeneous bronze to black coloured aluminium
The best pretreatment is ineffective if the rinsing technique is inadequate. Often the process baths are elaborately maintained and analysed, while the equally important rinsing baths are neglected. Therefore, during chemical pretreatment, the attention should always be paid to the condition of the rinses between the process baths and, in particular, to the rinsing situation
In the direct current (DC) sulphuric acid anodisation process, an artificial oxide layer is created on the treated aluminium. This layer has special characteristics. One of these is its porosity. The porosity of the layer enables, for example, the incorporation of coloured pigments and is thus an important criterion for a more or less intensive
For the decorative matting of aluminium surfaces in the anodizing process, alkaline pickling processes are predominantly used in Europe. These special etching bathes are applied in accordance with the DIN 17611 standard for “E6” surface treatment. Such etching bathes are also referred to “E6 etching bathes “. With correct bath management, decorative, fine matt aluminium