• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The initialization and preparation procedure described involves particularly ultrasonic test equipment for ultrasonic inspection of welding seams of pipes while passing through a production line. A dummy is used off line to determine suitable distances and orientation of test heads and to acquire relevant transit time and amplitude data. A standard is then used to obtain additional reference data to be related to the dummy test data. After the test heads are installed in the production line test stand, tests are repeated with the standard to obtain now the needed test reference data in conjunction with the previously related data. This way, looking windows for flaw echos as well as sensitivity data for the subsequent tests are accurately and reproducibly predetermined.
    公开号:SU917711A3
    申请号:SU772464851
    申请日:1977-03-29
    公开日:1982-03-30
    发明作者:Латер Дитер；Рис Карл
    申请人:Маннесманн Аг (Фирма)；
    IPC主号:
    专利说明:

    I
    The invention relates to non-destructive testing and can be used when setting up ultrasonic systems, namely, to determine their sensitivity and sweep speed.
    The known method of tuning the ultrasound unit, which implies that ultrasound vibrations are excited in the reference sample, parameters of the echo signals reflected from artificial defects are recorded, and the sensitivity of the control C is judged by these parameters.
    The disadvantage of this method is that it is difficult to use reference 1c samples under production conditions.
    The closest to the proposed technical essence and the achieved result is a method of setting up an ultrasound unit, which implies that in a reference sample made from the material and which provides it with geocetria, under laboratory conditions, ultrasonic vibrations fix amplitude - 25
    The propagation time of the echo signal from artificial defects, accumulates data on the parameters of the echo signal from different types of defects 2. However, the known method of control does not provide sufficient accuracy, since a change in the properties of the material from which the products are made affects the sensitivity threshold of the test installation and leads to the omission of defects.
    The purpose of the invention is to increase the accuracy of the control.
    权利要求:
    Claims (2)
    [1]
    This goal is achieved due to the fact that, in a reference sample made from the material of the product and coinciding with it in geometry, the ultrasonic vibrations are excited in laboratory conditions, the amplitude and propagation time of the echo are recorded. -signal from artificial defects, accumulate data on the parameters of the echo signal from different types of defects, additionally excite ultrasound waves at the reference in the form of a cylinder and measure the amplitude of time and time the amplitude ratio and the difference in the propagation time of the echoes in the reference sample and the reference, similar measurements are made on the reference in production conditions and in amplitude and propagation time of this echo and obtained in the laboratory conditions of court ratios t about the sensitivity and sweep speed of the ultrasonic installation in production conditions. FIG. 1 shows the scheme of ultrasound testing; in fig. 2 shows a scheme for accumulating data from a control sample by means of a reference; FIG. 3 and 4 - timing charts in the control and adjustment of the ultrasonic installation. On, reference sample 1, ultrasonic transducers 2 and 3 are installed at a certain distance from the monitored section 4. The signals from the ultrasonic transducers are fed to the amplifier 5, the measuring results recording unit 6 and the drive 7. Next, the ultrasonic transducer is installed on the standard 8, and drive 7 is connected to an electronic computing machine 9. The method is carried out as follows. Install ultrasonic transducers 2 and 3 on the reference sample. The signal from the ultrasonic X transducers 2 and 3 is fed to the amplifier 5, the recording unit 6 and then collected in the accumulator 7. Zones of the dying impulse Eg, impulse B at reflection from product 1 and impulse E of the test error with amplitude and travel time are recorded. Set the time interval-tg. in which the impulse of test error is expected. These amplitude and time segments are fixed in different materials and 1FI different types of defects and collected in the accumulator 7. Then the ultrasonic transducer 3 is mounted on the standard 8 and the signal E is fixed, when entering the standard 8, the primary echo signal ER, from the back wall of the standard 8 the amplitude and the secondary echo E (. The time tgj of the first echo E is determined. The relationship between the amplitude and time parameters received in reference sample 1 and reference 8, namely (AEQ, -Agp), - ( e) and (i- -4RV in a production environment for o1red A standard is used to determine the sensitivity and sweep of an ultrasound unit.To do this, similar operations are performed on the standard and the item being tested.The amplitude and time characteristics of the received signals are compared and, based on the ratios obtained under laboratory conditions, the sensitivity and speed of the ultrasound unit are compared for direct on the production. The proposed method of setting ura razvukovy installation allows you to improve the accuracy of control in production conditions. a matching score frequent reference controlled product in E. The invention The method of setting up an ultrasonic installation, which consists in that in a reference sample made from the product material and coinciding with it in geometry, excite under laboratory conditions ultrasonic vibrations, record the amplitude and time of propagation of the echo signal from artificial defects, The accumulation of data on the parameters of the echo-signal from various types of defects, characterized in that, in order to increase the control accuracy, ultrasound is also excited on the reference in the form of a cylinder. waves and measure the amplitude and time of propagation of this echo signal, find the ratio of the amplitudes and the difference of the propagation time of the echo signals in the reference sample and the standard, perform similar measurements on the standard in production conditions and in amplitude and propagation time of this echo and obtained in laboratory conditions are judged on the senses. ultrasonic equipment in production speeds. Sources of information that are considered in the examination 1. Methods of non-destructive testing. Under Ijed. S. Sharp, M., Mir, 1972, p .. 82-86.
    [2]
    2. Ermolov I.I. Ultrasonic flaw detection methods .M., MGI, 1966, p, i222-237 (prototype).
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    类似技术:
    公开号 | 公开日 | 专利标题
    US4658649A|1987-04-21|Ultrasonic method and device for detecting and measuring defects in metal media
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    US5589209A|1996-12-31|Method for a non-destructive determination of quality parameters in fresh produce
    US4760737A|1988-08-02|Procedure for flaw detection in cast stainless steel
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    US5672828A|1997-09-30|Strength determination of sheet materials by utrasonic testing
    US3688569A|1972-09-05|Ultrasonic surface roughness indicator
    Moss et al.1988|Investigation of ultrasonic transducers using optical techniques
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    Hesse et al.2007|A single probe spatial averaging technique for guided waves and its application to surface wave rail inspection
    JP2740871B2|1998-04-15|Method and apparatus for measuring shear wave velocity in ultrasonic test
    US3533280A|1970-10-13|Ultrasonic material tester
    Chen et al.2017|Analysis on wave propagation characters in austenitic stainless steel weld and application in ultrasonic time of flight testing
    SU1582112A1|1990-07-30|Method of determining speed of propagation of uldtrasonic oscillations
    SU1649414A1|1991-05-15|Method of ultrasonic testing
    SU1146599A1|1985-03-23|Method of determination of spheric and cylindrical flaw diameter
    JPH08261992A|1996-10-11|Ultrasonic flaw detector
    SU1205008A1|1986-01-15|Ultrasonic method of inspecting content of liquid in impregnated materials
    同族专利:
    公开号 | 公开日
    FR2360883B3|1980-02-22|
    DE2613799C2|1979-11-22|
    FR2360883A1|1978-03-03|
    CA1089081A|1980-11-04|
    US4106326A|1978-08-15|
    JPS52119384A|1977-10-06|
    JPS5740463B2|1982-08-27|
    GB1583202A|1981-01-21|
    IT1075433B|1985-04-22|
    DE2613799B1|1977-10-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2621890C1|2016-04-11|2017-06-07|Публичное акционерное общество Научно-производственное объединение "Искра"|Method for reducing dead zone under product control by ultrasonic echo-pulse method|US3090224A|1959-04-21|1963-05-21|Rankin Alexander Bryce Calder|Ultra-sonic flaw detection|
    USB368361I5|1967-10-31|
    US3608352A|1968-12-04|1971-09-28|Babcock & Wilcox Co|Ultrasonic transducers|
    US3791199A|1969-08-01|1974-02-12|Republic Steel Corp|Ultrasonic inspection method and apparatus|
    US3688565A|1970-09-28|1972-09-05|Sonie Instr Inc|Ultrasonic thickness gauge|US4270389A|1977-11-07|1981-06-02|Sumitomo Metal Industries Limited|Method and apparatus for the automatic ultrasonic flaw detection|
    DE2753472A1|1977-11-28|1979-05-31|Mannesmann Ag|PROCEDURE FOR AUTOMATIC SELF-MONITORING OF NON-DESTRUCTION-FREE TESTING SYSTEMS|
    DE2828273A1|1978-06-28|1980-01-10|Nukem Gmbh|METHOD AND DEVICE FOR THE AUTOMATIC ADJUSTMENT OF ULTRASONIC TEST HEADS|
    DE3017900C2|1980-05-09|1982-12-16|Krautkrämer, GmbH, 5000 Köln|Process for the precise automatic setting of the error expected range of ultrasonic tube testing systems for non-destructive testing of materials using the pulse-echo method|
    DE3136150A1|1981-09-09|1983-03-24|Mannesmann AG, 4000 Düsseldorf|METHOD AND DEVICE FOR CONTINUOUS DEBURRING CONTOUR MEASUREMENT BY MEANS OF ULTRASOUND|
    US4558585A|1984-03-19|1985-12-17|The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration|Ultrasonic angle beam standard reflector|
    US6405596B1|2000-10-13|2002-06-18|Chicago Bridge & Iron Company|Ultrasonic austenitic weld seam inspection method and apparatus|
    FR2840991B1|2002-06-17|2005-05-06|Air Liquide|ULTRASONIC CONTROL METHOD FOR WELDED JOINTS|
    CA2593894C|2006-12-01|2016-11-08|Roentgen Technische Dienst B.V.|A method for configuring an array of transducers in an ultrasonic test apparatus|
    US7938007B2|2008-05-08|2011-05-10|Operations Technology Development, Nfp|Method for inspecting joined material interfaces|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2613799A|DE2613799C2|1976-03-29|1976-03-29|Procedure for setting up ultrasonic testing systems|
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