论文部分内容阅读
在低温环境条件下的结构或部件的强度试验中,为了获得较高的应变测量精度,除必须注意选择热输出小而稳定的低温应变片外,还应根据测量精度的综合要求,选择合适的粘贴应变片的胶粘剂及相应的固化工艺条件。通常使用胶粘剂时都必须满足厂方提供的固化条件(温度、压力、时间),只有这样才能达到最佳性能,但是在使用场合,由于实际条件的限制,特别是大型结构或部件要达到厂
In low temperature environment under the structure or component strength test, in order to obtain high strain measurement accuracy, in addition to must pay attention to select a small and stable thermal output of low temperature strain gauge, but also based on the overall accuracy of measurement, select the appropriate Paste the strain gage adhesive and the corresponding curing process conditions. In general, the adhesive must meet the curing conditions (temperature, pressure, time) provided by the factory, so as to achieve the best performance, but in practical use, due to the actual conditions, especially the large structures or components to reach the factory