Wireless transmission steel tube ultrasonic flaw detector
The system is suitable for automatic detection of internal and external defects of various steel pipes. The principle of ultrasonic flaw detection is that after ultrasonic waves are coupled into the steel pipe by water, the incident wave propagates. When there is a defect in the pipe, the ultrasonic reflection will be caused. The ultrasonic instrument will report the ultrasonic reflected signal to...
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Rotating probe configuration
1. Probe configuration on the spindle section 1
A total of 3 probe adjustment frames are placed on section 1 at intervals of 120°. Each of the adjustment frames is equipped with a 2-channel combined ultrasonic line focusing longitudinal probe to detect longitudinal defects of the steel tube in a clockwise direction.
Detection of defects: Vertical and vertical defects in the steel pipe are detected in a clockwise direction.
Center frequency: 5.0MHz ± 10%
Coupling method: water immersion method
Quantity: 3 sets of probes, each consisting of 2 wafers. These 3 sets of probes are evenly distributed in the circumferential direction of the workpiece, spaced 120° apart, on the same section. A total of 6 channels of water immersion probes.
2. Probe configuration on the main shaft section 2
A total of 3 probe adjustment frames are placed on section 2, separated by 120°, and a 2-channel combined ultrasonic line focusing longitudinal probe is arranged on each adjustment frame to detect longitudinal defects of the steel pipe counterclockwise.
Detection of defects: counter-clockwise detection of longitudinal defects inside and outside the steel pipe.
3, the center frequency: 5.0MHz ± 10%
4, coupling method: water immersion method
5. Quantity: 3 sets of probes, each consisting of 2 wafers. These 2 sets of probes are evenly distributed in the circumferential direction of the workpiece, spaced 120° apart, on the same section. A total of 6 channels of water immersion probes.
Defect detection standard
Vertical and horizontal defects detection of ultrasonic steel pipe inside and outside: GB/T5777-2008 L2 (C5) standard
1. Probe configuration on the spindle section 1
A total of 3 probe adjustment frames are placed on section 1 at intervals of 120°. Each of the adjustment frames is equipped with a 2-channel combined ultrasonic line focusing longitudinal probe to detect longitudinal defects of the steel tube in a clockwise direction.
Detection of defects: Vertical and vertical defects in the steel pipe are detected in a clockwise direction.
Center frequency: 5.0MHz ± 10%
Coupling method: water immersion method
Quantity: 3 sets of probes, each consisting of 2 wafers. These 3 sets of probes are evenly distributed in the circumferential direction of the workpiece, spaced 120° apart, on the same section. A total of 6 channels of water immersion probes.
2. Probe configuration on the main shaft section 2
A total of 3 probe adjustment frames are placed on section 2, separated by 120°, and a 2-channel combined ultrasonic line focusing longitudinal probe is arranged on each adjustment frame to detect longitudinal defects of the steel pipe counterclockwise.
Detection of defects: counter-clockwise detection of longitudinal defects inside and outside the steel pipe.
3, the center frequency: 5.0MHz ± 10%
4, coupling method: water immersion method
5. Quantity: 3 sets of probes, each consisting of 2 wafers. These 2 sets of probes are evenly distributed in the circumferential direction of the workpiece, spaced 120° apart, on the same section. A total of 6 channels of water immersion probes.
Defect detection standard
Vertical and horizontal defects detection of ultrasonic steel pipe inside and outside: GB/T5777-2008 L2 (C5) standard
Performance
|
Channel number |
12 channels |
|
Flaw detection speed |
40m/min |
|
Total gain |
100dB，side size 0.5dB |
| Operation mode |
Single-probe transmitting, receiving or double-probe transmitting and receiving respectively |
|
Sensitivity margin |
≥50dB |
| Resolving rate |
≥26dB |
|
Dynamic range |
≥30dB |
|
Scan range |
0～5000mm |
|
Frequency range |
0.5～20MHz |
|
Sampling range |
250MHz |
|
Repetition rate |
Single channel 100Hz~4KHz adjustable |
|
Vertical linearity |
≤2% |
|
Horizontal linearity |
≤1% |
|
Detection mode |
Full wave, positive half wave and negative half wave |
|
Gate setting |
Each channel has three gates, A and B are defective gates and C are interface tracking gates |
|
Alarm indication |
Color Display and Sound Alarm of A, B and C Gate Alarm in Each Channel |
|
Delayed alarm |
Two paths, delay time 0.1-10S, step 0.1S |
|
Waveform storage, unlimited number, waveform playback, printing and report generation |
