最近,做为控制螺钉连接紧固力的控制方法,扭矩控制法和塑性区紧固的螺母族紧法受到很大的注视。然而,经爱予加载荷后外部载荷的螺钉连接的特性是不够清楚的,所以对于弹性区和塑性区的螺栓连接特性进行了一些试验研究而且试设计和试生产了一种新的延伸仪和螺栓连接模型,然后进行了螺钉的直接拉伸试验,扭矩拉伸试验和扭矩拉伸 Recently, as a method of controlling the fastening force of a screw connection, there has been a great deal of attention on the torque control method and the nut grouping method of fastening the plastic region. However, the characteristics of the screw connections loving the application of external loads after loading are not clear enough, so some experimental studies have been conducted on the bolting characteristics of the elastic and plastic zones and a new extension and / Bolted model, and then the screw direct tensile test, torque tensile test and torque drawing