论文部分内容阅读
超声波探伤方法是检测裂纹和计测材料劣化的一种有效的检查方法,多用于结构材料的使用期间内检查。但是,由于至今还没有推出一种能够长期稳定地使用于高温或超低温中的探伤用探头,因此通常是待结构材料温度返回到常温之后进行检测。鉴于上述缺点,笔者们开发出一种高低温用探头。其原理是:以钎焊方法把振动器耦合在探头的外侧(保护膜),以便同时形成耐热性电极。此探头既使在550℃高温中也无需冷却后使用,并且通过335℃炉内耐久试验证明,它具有一年以上的耐热性能。不仅如此,还证实该探头在
Ultrasonic flaw detection method is to detect cracks and measuring material degradation of an effective inspection method, used for structural materials during the inspection. However, since no probe for flaw detection that can be used stably for a long period of time in a high temperature or in a low temperature has not yet been introduced, the detection is usually performed after the temperature of the structure material returns to normal temperature. In view of the above shortcomings, I have developed a high and low temperature probe. The principle is: to braze the vibrator coupled to the probe outside (protective film), in order to form a heat-resistant electrode. This probe is used even after cooling at a high temperature of 550 ° C without any need for cooling, and has passed the furnace endurance test at 335 ° C to prove that it has more than one year of heat resistance. Not only that, but also confirmed that the probe in