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2. Control
2.1 General considerations
Until the 1970s, controls were rather rare in resin molding shops, although from the outset (around 1950-1960), and out of necessity, aeronautics introduced rigor into the assembly of aircraft structures.
First of all, the industry had to strictly control the various operations involved in gluing:
degreasing and stripping (with frequent checking of the baths), gluing, checking the evenness of the glue layer;
temperatures and curing times; bonding pressure control ;
mechanical testing on adjacent specimens (i.e. placed in the oven next to the mold, guaranteeing the same composition, but not necessarily the same temperature)...
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Control
Applications
References
Standards and norms
French Standards Association (AFNOR)
- Plastiques. Résines à l'état liquide ou en émulsions ou dispersions. Détermination de la viscosité apparente selon le procédé Brookfield. (remplace : NF T 51-210 : 1985-06). Indice de classement : T 51-083 - NF EN ISO 2555 - 09-99
- Plastiques. Polymères/résines à l'état liquide, en émulsion ou en dispersion. Détermination de la viscosité au moyen d'un viscosimètre rotatif...
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Dow Chemical Company (brands: DEH, DEN, DER, FORTEGRA, XQ and XZ) http://www.epoxy.dow.com
Hexion Specialty Chemicals (brands: Epikote, Epon, Epikure, Epirez, Heloxy, Cardura, Veova) http://www.resins.com/resins/
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List of suppliers http://www.ides.com
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