Degreasing products actually on the market to be used prior to anodizing or painting generally contain borate. Borate must be limited in the waste water leaving the plants since in EU they are not permitted anymore to be dispersed in the environment. The paper analyzes four new borate-free agents (cleaners), able to remove ink, markers, grease or solid soils adsorbed or chemically bonded to the surface of the parts. Different borate-free formulations ( 2 proposed by Italtecno MG19 NB2 and MG19 NB3and two available on the market) were tested and investigated evaluating the cleaning efficiency compared to formulation actually in use in aeronautics containing borates. The agents were also evaluated in term of corrosion or damage of these new formulations on the aluminium alloy used in the tests. The aluminum alloy under testing was 2024 unclad and with a cladding layer typically used in aeronautical applications. The paper summarize the main findings of the project BFCleaner (EU call SP1‐JTI‐CLEAN SKY‐2011‐01) funded by the European Comminuity within the Joint Tecnology Initiative “Clean sky”.
Efficiency of Innovative Borate-Free Cleaners for the Aluminum Industry
DONATI, LORENZO;TOMESANI, LUCA;
2016
Abstract
Degreasing products actually on the market to be used prior to anodizing or painting generally contain borate. Borate must be limited in the waste water leaving the plants since in EU they are not permitted anymore to be dispersed in the environment. The paper analyzes four new borate-free agents (cleaners), able to remove ink, markers, grease or solid soils adsorbed or chemically bonded to the surface of the parts. Different borate-free formulations ( 2 proposed by Italtecno MG19 NB2 and MG19 NB3and two available on the market) were tested and investigated evaluating the cleaning efficiency compared to formulation actually in use in aeronautics containing borates. The agents were also evaluated in term of corrosion or damage of these new formulations on the aluminium alloy used in the tests. The aluminum alloy under testing was 2024 unclad and with a cladding layer typically used in aeronautical applications. The paper summarize the main findings of the project BFCleaner (EU call SP1‐JTI‐CLEAN SKY‐2011‐01) funded by the European Comminuity within the Joint Tecnology Initiative “Clean sky”.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
