高炭素鋼の引張接着強度に及ぼす接着剤硬化条件の影響

概要

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For the purpose of further increasing use with the adhesive bonding in steel structural joints, adhesion tensile strength tests were carried out on a S55C high carbon steel/epoxy resin adhesive system under 20℃. Effects of heating temperature and its holding time on tensile strength and adhesion process were discussed for evaluating optimum hardening conditions. Probability distribution of adhesion tensile strength was found to be followed by Weibull distribution. The temperature-time-adhesion tensile strength (TTS_1) diagram described by the mean value strength and Weibull shape parameter was illustrated to give a clear feature on the whole adhesion strength. The adhesion tensile strength obtained for various heating temperatures and times was divided into three stages in Larson-Miller parameter plot, that is, incomplete adhesion stage I of cohesive failure, suitable adhesion stage II of cohesive failure and deterioration adhesion stage III of cohesive-interface mixing failure mode. Thus, it became possible to evaluate the optimum hardening condition for adhesion joint strength using TTS_1 diagram and/or Larson-Miller parameter plot.
社団法人日本鉄鋼協会の論文
1989-05-01