“扭转到屈服”(torque—to—yield)原理的推广应用是一大进步,但受到了当时螺栓和螺柱特性的限制。近来,Habert Taabert(西德Friedr Boesner有限公司总经理)开发出了一种新型螺栓和螺柱,以其可以获得更高的紧固性能。这种螺栓和螺柱对紧固连杆,连杆大端轴承盖和气缸盖特别具有吸引力。其优点是结构紧凑、质量小、抗疲劳性好,可提供配合面定位,以及因紧固件的均匀伸长量比 The promotion and application of the principle of “torque-to-yield” is a big step forward, but it was limited by the characteristics of the bolts and studs of the time. Recently, Habert Taabert, managing director of Friedr Boesner GmbH in West Germany, has developed a new type of bolts and studs for higher fastening performance. These bolts and studs are particularly attractive for fastening the connecting rod, connecting rod big end bearing cap and cylinder head. The advantages of compact structure, low quality, good fatigue resistance, can provide mating surface positioning, and due to the fastener uniform elongation ratio