tory burch outlet Thin wall pipe wall thickness le

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Thin wall pipe wall thickness less than 0.5mm of ultrasonic flaw detection


Or more modes. 3 test cases I plant acid thin-walled stainless steel business, was required to meet the GB2108 - 80 standard conditions, that the defect does not allow leakage wall 5 pick. Use ~ 50mm ~ 0. g5mm (Table l, 3], and ~ 75mm> (0.27mm (Table 2) two sizes of pipe, with domestic CTS-26-82-and West Germany USL-type apparatus, using a variety of exploration bran, the amount of rates and different done a lot of different mode of trial by trial you can see, choose the amount of the rate and angle is very important, and sometimes to a thickness on the election less than Taiwan proper perspective, the different thickness, with only one cheek rate, often less than a right angle pull, record test results shown in Table I 10 In addition,tory burch outlet, according to the selected probe and the pattern of carved artificial defects of a thin-walled tube simulation testing, in q575mmX0.27ram tube carved O.5, 08mm through-hole and deep 0.015,0.02,0,0.35, O.042, 0.052mm length of slot C are 10mm), with the CTS-table 1CTS a 26 Instruments f · d is the frequency with the tube wall thickness by a 32-type tax returns 2USL instrument table 3USL a 32-type apparatus () fld person lizard mode (bottle ram) West Germany, West Germany 6x82.0 8x84.0 West Germany 30 × 202.0 Wujin 10 × 122.5-made 10 × i050 homemade TxT10.0 homemade T × T10.0 homemade T × T10.01.836420.g33460.g33381.12531522.25, 28204.532144.532164.522 So eleven spider an S0 a So - A11T2TA, 2726 Instruments and 2.5MHz3l. oblique probe (ground arc), distance 6] Lmm, 4 = 6dB sensitivity of detection, can find the artificial defects, indicating that the use of Lamb wave testing of thin-walled steel pipe to meet the GB21. 8-80 standard. 4 Conclusion 4.1 Application of thin-walled tube of Lamb wave method for ultrasonic testing is feasible. 4.2 Lamb wave testing to improve the reliability nature of testing by the end, when the variation of the echo to determine the excited Lamb wave is 4.3 when the thin wall,, rd value is small, usually only one mode - when there will be two in high participate in the trials above model has Cui Meiling, beam Wanjie (on the next section l56 pages) is likely to expand into cracks, hardening to a very low toughness brittle areas expand and become macro-cracks. two tank weld pool In the hydraulic pressure test by the ray and ultrasonic inspection of parts, test the water pressure in the review found that some parts of the re-inspection by the ray, the ray photographic film does not have any defects on the show, but the site is shown by the ultrasonic inspection defects in the wave height to Zone I, or wave height, although long-term measurements in the I zone, but failed excessive defects then the ultrasonic testing of defects found in how qualitative it? After analysis, that these defects should be the crack, because if the weld have pores or slag volume defects,tory burch outlet, NA, according to theoretical calculations,tory burch outlet, radiographic-ray detection sensitivity of 2 film on the weld diameter should be greater than 0.Gram showing such defects, while the-ray detection confirmed that the film is free from defects on the show, but the wave ultrasonic testing confirmed the existence of defects, with reflectors, which only shows the weld plane of the map was indeed trapped there, not the crack is not melting units destroyed, according to which material can Billiards Cold crack high sensitivity and the fact that there have been cracks, ultrasonic detection of defects should be characterized as non-destructive crack detection in welds in tank, also found by the ray inspection found no defects in welds, and ultrasonic testing found only in the wave height Zone I, but indicate the length of a long and consecutive weeks in a certain range of defect wave of such defects should be sentenced to crack. 5 Summary of Chongqing from Poland introduced 33.0 However, the balloon can mercury in the manufacturing process and more King found that crack, crack number and length are rare in the history of domestic construction in recent years, the spherical nature of cold cracks cracks cracks caused by the ball is mainly due to poor film materials can be welded and the welding process properly now, spherical hardening embrittlement of welded joints of the organization still exists, the higher the welding residual stress and diffusible hydrogen is not removed. with spherical tank is designed according to AD specification, wall thin, relatively high job stress in the combined effect of these factors , the tank during operation will generate a new crack in the future to open cans examination, must be integrated using a variety of non-destructive testing methods,abercrombie ireland, careful testing of new cracks. * 169 *
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