To further advance sustainability in the aluminium industry, it is important to understand where the energy for the production comes from.Here, the difference between the production of primary aluminium and the extraction of secondary aluminium through recycling is significant. But how is aluminium extracted in the first place? Primary aluminium ...
In addition to pure organic colours, salts based on ferrioxalates are usually used for gold colouring in anodising operations. For decades, these salts have enabled intensive and durable gold colouring, which is often used for the design of facades in the architectural sector. Until now, powdered colouring products based on ...
After anodising and colouring aluminium surfaces, it is particularly important to seal the created porous aluminium oxide layer well. This process can be carried out using various seal methods. One possibility is the hot sealing. For this, fully demineralised water is used at a temperature of at least 96°C, to ...
Sustainability in business is a wide-ranging topic that concerns all sectors of the economy. Some time ago we already reported on the relevance of aluminium in this topic. But why is aluminium a sustainable resource? Good characteristics of aluminium as a material One of the reasons for this is that ...
After the news about the happenings in Ukraine, Alufinish decided to donate quickly and unbureaucratically for the people in Ukraine. For this purpose, various needed goods such as blankets, drinks and other necessary goods were donated to an aid convoy to help the affected people directly. ...
Particularly in the field of job coating, a certain proportion of hot-dip galvanised surfaces has to be treated in addition to a large proportion of aluminium surfaces. If only an acidic etching and degreaser is available for this in the plant, it becomes problematic. If both metals are pretreated in ...
In the economy, aluminium is treated as an important material for the future. This is because it has many advantages: The formability, the low weight and especially the corrosion resistance are some of these criteria. And therefore aluminium is an important part for a climate-neutral future! But why is aluminium ...
In addition to a good cleaning of the surface, a good etching of the material is particularly important when powder coating aluminium. In addition to removing oxide residues and other surface residues that are not removed during cleaning, acid etching with Alfideox enables the surface to be roughened. This in ...
As in all chemical pretreatment steps in the anodisation of aluminium, mistakes can also be made in the desmutting process. The following are two examples of errors that can occur. Raw material, initial state Material after desmutting This material was cleaned, briefly alkaline etched and then pretreated in the desmutting ...
Desmutting is used in chemical pretreatment after an alkaline etching process or a polishing process. Due to the removing effect ("etching") of these process steps, a more or less strong mix of different alloy components remains on the surface, depending on the material alloy. This is often visible as a ...