Speaker
Masumi Koori
(Nipponsteel)
Description
In the automotive industry, the needs of adhesive bonding are increasing. It is well known that the deterioration over time of adhesive joined parts is one of the problems. Therefore, we investigated the deterioration behavior of adhesive joined parts using various steel sheets.
As a result, deterioration over time was caused by the becoming weaker in interfacial adhesion strength between the metal surface and the adhesive, and degree of the deterioration depended on the type of metal coating. Furthermore, the deterioration behavior was affected by the difference of bonding state depending on the type of metal coating and adhesives.
In this paper, we estimated the bonding state by examining the adhesion work on each surface of steel and some kinds of galvanized steel sheets, and discussed the aging mechanism of adhesive bonding.
Keywords
adhesive, deterioration, aging mechanism, galvanized steel
Author
Masumi Koori
(Nipponsteel)
Co-author
Mr
Kohhei Ueda
(Nippon Steel Corporation)