www.melanexjou.fora.pl

[loiwtjsf]

Two-way pipe ramp ultrasonic contact method to improve probe


Testing of different pipe wall thickness. In practice, we found the same diameter in the adjustment of the detection sensitivity of different pipe wall thickness, if the wall thickness different, the detection sensitivity varies greatly. The bi-directional arc wedge angle probe is consistent with the pipe diameter, as long as the same diameter,[link widoczny dla zalogowanych], wall thickness regardless of what can only be used with a wedge, adjust the angle of incidence of the probe volume is small. Through theoretical argument and the trial comparison, decided to improve some of the specifications of the probe, using two-way variable angle probe, this probe with the original two-way angle probe the biggest difference is that you can not wedge angle of PMMA, both maintained the advantages of the original two-way angle probe, and also allows a wide range of incident angle can be adjusted. The probe is set in the probe blocks on a rotating probe into the chip core body, into the coupling agent, both ends of the sealing position, and rotate with the probe moved to the side and O. ~ 9O. Corner indicates the scale needle,[link widoczny dla zalogowanych], struck out as long as the pointer, the probe angle that change with (O. ~ 9O. Between), and can clearly read out the precise angle values. For the different specifications, can be obtained by calculating the point of need, therefore, of any diameter and wall thickness of steel, two-way variable angle probe can get the best angle of incidence. The probe also enables longitudinal wave,[link widoczny dla zalogowanych], shear wave and surface wave testing of the free conversion, ease of use. We j2 『273mm × 10mn2 and 273mm × 28mm two sizes of steel pipes for testing the sensitivity adjustment, the implementation of standards are GB/T5777-1996 (seamless steel pipe for ultrasonic testing\angle sensor to compare, contrast the results in Table 1. Table 1-way and two-way variable angle oblique probe detection sensitivity of the probe to adjust the comparison can be seen from Table 1, on the 273rtlrtl × 10mm steel tube, two-way and two-way variable angle oblique probe sensitivity of the probe is not very different, but 273mm × 28rtlrtl the pipe,[link widoczny dla zalogowanych], two-way variable angle probe sensitivity than the two-way angle probe at least higher than 4dB, and the inner and outer wall poor sensitivity small. that two-way variable angle probe can be one of the best incident angle, to improve the detection sensitivity, reduce leakage, the purpose of error detection rate. in the actual testing, we have some special requirements of steel with two-way variable angle probe, with good results. 5 Conclusion angle probe selection or a direct impact on the appropriate level of detection sensitivity, two-way variable angle probe to meet the same diameter, different thickness of the pipe inspection, and sensitivity than the original by at least 4dB, been proved very good, to make up for the original less than the probe. improved probe (two-way variable angle probe) for some very special specifications for steel, and is no longer a \occurrence, the company has created considerable economic benefits, and there is value for promotion. on the editing and publishing \The fully reflect the reality of non-destructive testing technology for a large professional annual \and guidance as a whole,[link widoczny dla zalogowanych], annual volume, will continue to help us understand our non-destructive testing of the \and various types of enterprises and institutions to understand China NDT fact, the scientific decision-making nondestructive testing to provide comprehensive, systematic, and the authority of the powerful information support, to promote and guide the development of non-destructive testing and theoretical study of practice to play an active role. \(1978-2005) \in various fields, covering the provinces, cities and Hong Kong, Macao and Taiwan regions, focusing national development projects of major non-destructive testing, bringing together the development of nondestructive testing important documents and data. \. chsndt.com) column in the status of preparation and timely publication of information, welcomed the industry, non-destructive testing of each system in the preparation of experts, provide a variety of materials and data.

相关的主题文章：


[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]