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Eco friendly energy efficient phosphate passivation process for CRCA & HRCA mild steel metal substrate / C. Emmanuel in PAINTINDIA, Vol. XLIX, N° 7 (07/1999)
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Titre : Eco friendly energy efficient phosphate passivation process for CRCA & HRCA mild steel metal substrate Type de document : texte imprimé Auteurs : C. Emmanuel, Auteur Année de publication : 1999 Article en page(s) : p. 113-124 Langues : Anglais (eng) Tags : 'Peinture anticorrosion' Peinturage 'Préparation surface' Passivation Phosphatation 'Protection corrosion' 'Acier doux' environnement' 'Prévention pollution' Index. décimale : 667.9 Revêtements et enduits Résumé : Metal finish operations viz., plating and painting are employed in engineering industries for the purpose of protecting their metal based products from, i) Corrosion ii) Aesthetics
For machine machine tool products, painting after suitable surface preparation is being adopted.Note de contenu : - Corrosion and rusting : Meaning corrosion - Why metals are corroded? - Metal passivation-meaning and origination - Theories of metal passivation - What is meant by rusting and passivation? - Rust formation-origination - Acidic corrosion - Alkayne corrosion - Rust prevention-basic logics - Effect of passivation - Hybrid or mixed methods of rust prevention - Phosphating passivation process - Conventional 7 tank phosphate process - Solvent and hot alkaline degrease - Acid pickling - Zinc phosphating - Chromium passivation
- Eco-friendly energyless or energy efficient phosphating passivation process for CRCA & HRCA MS sheet metal substrate
- Salient features of new process : Degrease operation - Inhibited acid pickling - Phosphating passivation or oxidation phosphate process - Chromium free metal passivation process
- Process reaction mechanism and coating formation : - Phosphating process-meaning and significiances - Need for phosphating - Actions occured in phosphating process - Functions of phosphate coat - Disadvantages of conventional zinc phosphate process - Coating and sludge formation-in zinc phosphate process-reaction mechanism
- Economic and ecobenefits of new process structurePermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13014
in PAINTINDIA > Vol. XLIX, N° 7 (07/1999) . - p. 113-124[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006490 - Périodique Bibliothèque principale Documentaires Disponible Improved performance of phosphoric acid anti-corrosive pretreatments when aluminium hydroxide is added / E. Almeida in SURFACE COATINGS INTERNATIONAL, Vol. 78, N° 1 (01/1995)
[article]
Titre : Improved performance of phosphoric acid anti-corrosive pretreatments when aluminium hydroxide is added Type de document : texte imprimé Auteurs : E. Almeida, Auteur ; D. Pereira, Auteur ; M. Q. Figueiredo, Auteur ; M. Morcillo, Auteur ; V. M. M. Lobo, Auteur Année de publication : 1995 Article en page(s) : p. 6-12 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Peinture anticorrosion' 'Protection corrosion' 'Préparation surface' Phosphatation 'Phosphorique acide' 'Aluminium Hydroxyde' Acier 'Etude expérimentale' Index. décimale : 667.9 Revêtements et enduits Résumé : This work presents the main results of an experimental study carried out with rust pretreatments based on phosphoric acid solutions with the additionof aluminium hydroxide.
Because the transformation of rust steel surfaces by phosphoric acid solutions depends strongly on the interfacial conditions, the first step in this work was the clear definition of rust formation conditions and of a reproducible technique for burshing them to a known degree as defined in standard SIS 055900. After that, the best range of acid concentration was optimised in the case of phosphoric acid solutions and phosphoric acid solutions saturated with aluminium hydroxide.
Several characterisation techniques were used, such as scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), infrared spectrometry (FTIR) and X-ray diffraction (XRD), to interpret the phenomenon of rust transformation. The results obtained lead to the conclusion that the best anti-corrosive behaviour of phosphoric acid solutions is obtained when they are saturated with aluminium hydroxide.Note de contenu : - Steel substrated used
- Pretreatments used and their application
- Surface characterisation
- Paint coating application and its behaviourPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16902
in SURFACE COATINGS INTERNATIONAL > Vol. 78, N° 1 (01/1995) . - p. 6-12[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006558 - Périodique Bibliothèque principale Documentaires Disponible New anti-corrosive painting technologies at the beginning of the 21st century / E. Almeida in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 911 (12/2000)
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Titre : New anti-corrosive painting technologies at the beginning of the 21st century Type de document : texte imprimé Auteurs : E. Almeida, Auteur Année de publication : 2000 Article en page(s) : p. 73-84 Note générale : Bibliogr. Langues : Américain (ame) Tags : Matériau revêtement Peinture anticorrosion Protection corrosion Peinturage Acier galvanisé haute teneur solide poudre eau photodurcissable radiodurcissable Préparation surface Passivation Phosphatation Utilisation Article synthèse Index. décimale : 667.9 Revêtements et enduits Résumé : The aim of this work is to provide a general overview of current trends in anti-corrosive painting technologies for steel and galvanized steel substrates. After some considerations of important aspects inherent to the environment and humans and to competitiveness and quality, a of new painting technologies is given, in particular solvent-free liquid paints, powder paints, water-based paints, and radiation-cured paints. As a complement to this, mention is made of specific aspects concerning galvanized steel and application technologies, such as cataphoresis and autophoresis. Finally, some references are presented concerning the short- and mid-term future of anti- corrosive painting technologies. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5782
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 72, N° 911 (12/2000) . - p. 73-84[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001219 - Périodique Bibliothèque principale Documentaires Disponible 001218 - Périodique Bibliothèque principale Documentaires Disponible Numerical identification of bulk behavior law of manganese phosphate coatings. comparison with tribological properties / Ph. Hivart in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 75, N° 942 (07/2003)
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Titre : Numerical identification of bulk behavior law of manganese phosphate coatings. comparison with tribological properties Type de document : texte imprimé Auteurs : Ph. Hivart, Auteur ; J. P. Bricout, Auteur ; L. Dubart, Auteur ; B. Hauw, Auteur Année de publication : 2003 Article en page(s) : p. 37-44 Note générale : Bibliogr. Langues : Américain (ame) Tags : Méthode élément fini Recuit Essai frottement Acier Manganèse phosphate Tribologie Phosphatation Préparation surface Peinturage Index. décimale : 667.9 Revêtements et enduits Résumé : The tribological properties of a manganese phosphate treatment are optimized with consideration of the process parameters and a thermal annealing before lubrication. The analysis was first realized through a friction test. This article deals with the application of a numerical identification procedure of coating bulk behavior to the studied cases. The mechanical properties of the chosen coatings are identified using Vickers microindentation. A plastic behavior law representing the coating and its neighboring substrate is identified using an inverse approach. The obtained bulk behavior law of the coating provides an accurate understanding of the performance of that coating. Many correlations are posited between the behavior laws, such as resistance to seizure and other characterization results, particularly SEM examination and coating weight. This knowledge leads to an objective optimization of the manganese phosphating process using finite element computation. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5579
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Code-barres Cote Support Localisation Section Disponibilité 000567 - Périodique Bibliothèque principale Documentaires Disponible