摘要
Abstract
To predict the curing degree of adhesive bonded automobile aluminum joint, the heat transferring process of the joint within the curing process was experimentally analyzed; Based on the experimental results, the inner heat released by adhesive is neglected; the temperature distribution of the joint is considered to be uniform. According to the joint energy balance, the temperature variation of the joint has been studied, following which the analytic curing degree prediction model of joint is established, and then verified through experiments. Finally, the effects of curing parameters and substrate thickness on the curing degree were discussed. It has been found that increasing cuing temperature can significantly improve the curing rate of the joint while increasing the preheat temperature or decreasing the adherend thickness can not improve the curing rate of the joint, but make the curing of adhesive start earlier. It has also been found that the effect of preheat temperature can be more pronounced at a great adherend thickness.关键词
固化工艺/胶接接头/铝合金/固化度/解析预测Key words
curing process/ adhesive joint/ aluminum/ curing degree/ analytical model分类
化学化工
