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为了解决轴承生产中由于棒材表面裂纹造成的滚动体质量问题,1973年开始研制适用于轴承钢棒材自动探伤的装置。在毛主席无产阶级革命路线指引下,厂、所协作组成三结合研究小组,于1975年试制成功适用于轴承行业现场使用的旋转聚焦双探头超声波棒材自动探伤装置。经工厂试用证明,这套装置可以对棒材实现可靠的和较高速度的自动探伤。奋方法一方式的选娜生产上使用的轴承钢棒材,大多是经过无心磨床磨制,表面比较光滑,采用超声波进行检查比较适合。在自动高速检查时.探头不能
In order to solve the bearing production due to the rolling rod surface quality problems caused by the bar, in 1973 began to develop suitable for automatic testing of bearing steel bar device. Under the guidance of Chairman Mao’s proletarian revolutionary line, the plant and the institute jointly formed a three-pronged research group and successfully piloted a rotary focus dual-probe ultrasonic testing device for the field use in the bearing industry in 1975. The factory trial proved that this device can achieve reliable and high speed automatic detection of bar. One way to choose the way to choose the production of bearing steel bar used in production, mostly through the centerless grinder grinding, the surface is relatively smooth, the use of ultrasound more suitable for inspection. In automatic high-speed inspection, the probe can not