摩擦压力机在产品出厂之前或设备大修之后,都要测定它的有效打击能量,因为打击能量是摩擦压力机最主要的技术参数。对此参数目前有不少测试方法,如应力一应变仪、测速电机、行程记录器等,但用铅圆柱体试样在摩擦压力机上进行镦粗,是最简单、经济而又实用的办法。但是,对于作为测试依据的资料必须认真分析并合理选用参数,否则就会得到不 Friction press before the product is shipped or equipment overhaul, to determine its effective strike energy, because the strike energy is the most important friction press technical parameters. At present, there are many test methods for this parameter, such as stress-strain gauge, speed motor, travel recorder, etc. However, it is the simplest, economical and practical way to upset the specimen with lead cylinder on the friction press. However, for the test based on the data must be carefully analyzed and the rational choice of parameters, otherwise you will get