所研究的一种新的挤压方法,其特点是一挤压轴和挤压筒沿着金属流动方向以不同的速度相对于模子移动,而移动中的挤压筒速度超过挤压轴。由于所研究的挤压方法中,挤压筒上的接触摩擦力具有有效作用,所以该方法可简称纵向有效挤压方法。本文谈到了所研究的方法与正挤压和反挤压法相比较中其挤压筒摩擦特点、受力和变形状态的规定。在100吨水压机上进行了试验,该水压机上装设了一台示波器记录装置,它可同时记录:总挤压力、挤压轴上受 A new extrusion method was investigated that features an extrusion axis and extrusion barrel moving at different speeds relative to the mold along the metal flow direction while the moving extrusion barrel exceeds the extrusion axis. Due to the effective contact friction on the extrusion barrel in the extrusion method studied, this method may be referred to simply as a longitudinally effective extrusion method. This article talks about the frictional characteristics, stress and deformation conditions of the squeezed cylinder compared with the normal extrusion and reverse extrusion methods. The test was carried out on a 100-ton hydraulic press equipped with an oscilloscope recording device that simultaneously recorded: total crush pressure,