论文部分内容阅读
随着现代化设备的发展,电子机械结构质量相应地得到重视。本文根据国外和我厂实践经验,对电子机械结构质量的试验方法作一介绍。 1.载重试验将受试产品置于平台上,在其主要地方用模拟额定重量1.5～2倍的砂袋分布载荷,经24小时后,除去载荷,观察各部件的变形情况和焊接处是否有断裂现象。 2.刚度试验对于在汽车、轮船或其它有振动、冲击环境下工作的电子设备,必须对导轨和插箱的刚度进行试验(如图1所示)。将受试产
With the development of modern equipment, the quality of electromechanical structures has received corresponding attention. Based on the practical experience of foreign countries and our factory, this article gives an introduction to the test methods for the quality of electronic mechanical structures. 1. Load test Place the product under test on the platform and distribute the load in a sand bag of 1.5 to 2 times the nominal weight in the main place. After 24 hours, remove the load and observe the deformation of each component and whether there is Breaking phenomenon. 2. Stiffness test For electronic devices that work in automobiles, ships, or other environments with vibration and shock, the stiffness of the rails and subracks must be tested (see Figure 1). Will test production