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根据(65)铁机辆蒸字第1776号指示,轮箍是要求采用超声波探伤检查的项目之一.1965年第四季度,我们对这项工作进行了一些有关试验,并得出了初步的探测方法.现总结如下: 一.轮箍的初步探测 1964年有一个轮箍被列检人员发现裂纹,防止了崩箍的事故.这件事引起了我厂的重视,首先针对缺陷轮箍进行了系统的检验和分析,认为该轮箍的裂纹是因为内部缺陷所引起的.如图1的(a)、(b),都可以看到明显的蓝黑色旧痕核心和以核心为中心的
According to (65) Steam Iron Steamer No. 1776 instructions, the wheel is one of the items that require the use of ultrasonic flaw detection.In the fourth quarter of 1965, we carried out some relevant experiments on this work and reached a preliminary Detection methods are summarized as follows: First, the initial detection of the tire in 1964 there is a wheel was seized personnel found cracks, to prevent the collapse of the accident culling this matter has aroused the attention of our plant, the first for the defective wheel The system inspection and analysis, that the wheel cramps due to internal defects caused by the cracks as shown in Figure 1 (a), (b), you can see the obvious blue-black old mark core and the core of the center