Quality Testing of the Chrome Coating Based on Acoustic Emission Technology

2012 ◽  
Vol 253-255 ◽  
pp. 399-402
Author(s):  
Xing Guo Wang
Keyword(s):  
Acoustic Emission ◽  
Assessment Method ◽  
Emission Source ◽  
Uniform Motion ◽  
Emission Testing ◽  
Acoustic Emission Source ◽  
Quality Testing ◽  
Testing Technology ◽  
Chrome Coating ◽  
Acoustic Emission Testing

A assessment method on quality detected system was developed on cylinders inner wall coating through the hydraulic radial expansive load system and acoustic emission testing technology,. Put double probes linear position principle and uniform motion of load system together, and make curved positioning come true based on the technical principle of locating acoustic emission source. The disadvantage was solved that double probes can’t make acoustic emission source planar positioning. The result showed that this system can provide a precise identification and location; it has fast testing velocity and portable device.

Multilayer Urea Reactor Safety Evaluation Based on Acoustic Emission Examination

2012 ◽  
Author(s):  
Mingda Song ◽  
Weiqiang Wang ◽  
Huaixiang Cao ◽  
Lixin Wang ◽  
Bo Zhang
Keyword(s):  
Acoustic Emission ◽  
Stress Intensity ◽  
Stress Intensity Factors ◽  
Safety Evaluation ◽  
Emission Source ◽  
Intensity Factors ◽  
Element Analysis ◽  
Emission Testing ◽  
Acoustic Emission Source ◽  
Acoustic Emission Testing

Safety evaluation of urea reactors containing defects was studied based on acoustic emission examination and subsequent dissection. First, acoustic emission examination was conducted in the process of pressure testing during the hydro test and the existed defects of the urea reactor were detected and comprehensively evaluated. Second, the dissection results of the multilayer urea reactor confirmed that the acoustic emission source locations were heavy weld radial expansion cracks. Third, crack stress intensity factors were calculated in accordance with the finite element analysis results and actual crack sizes which were acquired during urea reactor dissection. Based on the crack stress intensity factors, the remaining life of the multilayer urea reactors can be estimated during the acoustic emission testing process in accordance with the acoustic emission source location appearance pressures.

The Corrosion Acoustic Emission Source Location Technique and its New Trend

2013 ◽  
Vol 694-697 ◽  
pp. 1167-1172
Author(s):  
Hai Sheng Bi ◽  
Zi Li Li ◽  
Yuan Peng Cheng ◽  
Isaac Isaac ◽  
Jun Wang
Keyword(s):  
Acoustic Emission ◽  
Storage Tank ◽  
Petrochemical Industry ◽  
Source Location ◽  
Location Method ◽  
Corrosion Detection ◽  
Emission Testing ◽  
Acoustic Emission Source ◽  
Acoustic Emission Testing ◽  
Location Methods

The corrosion acoustic emission (AE) source location is one of the main purposes of acoustic emission testing (AET), corrosion detection and location can guarantee the safety and integrity of pipeline, storage tank and other equipment in the petrochemical industry. The computed source location and zonal location methods are reviewed in this paper, and also new source location method based on modal acoustic emission (MAE) is introduced and this new method will be more widely used in the field of corrosion detection in future.

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