Hintergrundwissen Archives - Alufinish https://alufinish.de/en/category/hintergrundwissen-en/ Bauen auf Vertrauen - Build on trust Wed, 08 Mar 2023 13:16:31 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://alufinish.de/wp-content/uploads/2018/01/cropped-logo512512.png Hintergrundwissen Archives - Alufinish https://alufinish.de/en/category/hintergrundwissen-en/ 32 32 Removing polishing pastes – The important aspects of this process https://alufinish.de/en/removing-polishing-pastes-the-important-aspects-of-this-process/ Wed, 11 May 2022 15:59:16 +0000 https://alufinish.de/?p=5460 For a shiny and brilliant-looking aluminium surface, mechanical polishing of the raw material is often carried out prior to the actual chemical pretreatment process in the anodising plant. This mechanical polishing is then usually done by using special, solid polishing pastes which are applied to the polishing wheel for this purpose. These pastes usually contain […]

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]]> Where does the energy for aluminium production come from? https://alufinish.de/en/where-does-the-energy-for-aluminium-production-come-from/ Fri, 29 Apr 2022 18:35:43 +0000 https://alufinish.de/?p=5403 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 is extracted from the raw material bauxite. […]

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]]> What happens during hot sealing? https://alufinish.de/en/what-happens-during-hot-sealing/ Mon, 11 Apr 2022 18:25:33 +0000 https://alufinish.de/?p=5338 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 which a sealing additive is added. […]

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]]> Mistakes while desmutting are possible! https://alufinish.de/en/mistakes-while-desmutting-are-possible/ Thu, 03 Feb 2022 21:26:10 +0000 https://alufinish.de/?p=5051 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 stateMaterial after desmutting This material was cleaned, briefly alkaline etched and then pretreated in the desmutting bath. Already after etching, the surface showed […]

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