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Method , Device And Circuit For Detecting Surface Defects Such As Cracks, Fractures And The Like On A Rolling Mill Rollers
Method , Device And Circuit For Detecting Surface Defects Such As Cracks, Fractures And The Like On A Rolling Mill Rollers
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机译:用于检测轧机辊上的诸如裂纹,破裂等表面缺陷的方法,装置和电路
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摘要
The invention relates to a method, device and a circuit for detecting surface defects such as cracks, fractures and the like on a roller (2) for a rolling mill (1), in particular on the working rollers (2a) which are mounted with support roller (2b) on a vertical stand (3). The rollers (2) are verified for detecting defects in the operation position thereof, transversal ultrasonic waves (4a) whose frequency is approximately equal to 0.5-2 MHz are transmitted to the first end of the roller (2c) and are received on the second end (2d) thereof and during a measuring process an ultrasound transducer (5) and an ultrasound receiver (6) are pressed against the cylinder (2e) surface for a test time.
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机译:检测轧机( 1 B>)的辊( 2 B>)上的表面缺陷如裂纹,断裂等的方法,装置和电路技术领域,特别是在与支撑辊( 2 B> b I>)一起安装的工作辊( 2 B> a I>)上垂直支架( 3 B>)。验证了滚子( 2 B>)可以检测其操作位置中的缺陷,即频率近似等于的横向超声波( 4 B> a I>) 0.5-2 MHz传输到滚筒的第一端( 2 B> c I>),并在第二末端接收( 2 B> d I>),并在测量过程中将超声换能器( 5 B>)和超声接收器( 6 B>)压在圆柱体( 2 < / B> e I>)表面进行测试。
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