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High-Volume Non-Destructive Test Applications at the Hanford Atomic Products Operation; Applications Industrielles des Essais Non Destructifs a l'Etablissement Nucleaire de Hanford; Provedenie bol'shogo chisla nedestruktivnykh ispytanii v ''khenford atomik prodakts opereishen''; Ensayos No Destructivos en Gran Escala Aplicados en Hanford

Conference:

Abstract

Safety and efficiency of critical Hanford processes are assured with rapid, reliable, and automatic non-destructive tests. High-sensitive eddy-current and ultrasonic inspection systems are in routine use in the field and in manufacturing production processes to provide maximum quality assurance of large volumes of material in minimum inspection time. This paper describes inspection systems being used to ensure quality of Hanford's production nuclear-fuel manufacturing processes. Operated as regular in-line manufacturing equipment, these systems employ ultrasonic attenuation measurements to monitor grain structure of bare uranium fuel cores, ultrasonic and eddy- current techniques to ensure adequate bonding and thickness of 0.040 in aluminium cladding on canned elements, and novel wide-band, high-resolution ultrasonic inspection techniques to detect defects in the fuel end-weld closures. Combined eddy-current and ultrasonic tests are applied simultaneously to perform a complete fuel- element inspection on a nine-second cycle; defective elements are automatically segregated from the process stream. Emphasis is given to advanced ultrasonic test methods of inspecting thin-walled, fuel-sheath tubing. Special highly focused transducers are used with wide-band circuitry to generate pure shear waves in 0.015-in-thick wall tubing. Lamb and other complicated wave motions are excluded so that tests results are readily interpreted and reproduced. Novel, economical methods of producing  More>>
Authors:
Worlton, D. C. [1] 
  1. Pacific Northwest Laboratory, Battelle Memorial Institute, Richland, WA (United States)
Publication Date:
Oct 15, 1965
Product Type:
Conference
Report Number:
IAEA-SM-63/28
Resource Relation:
Conference: Symposium on Non-Destructive Testing in Nuclear Technology, Bucharest (Romania), 17-21 May 1965; Other Information: 9 refs., 14 figs., 1 tab.; Related Information: In: Non-Destructive Testing in Nuclear Technology Vol. II. Proceedings of a Symposium on Non-Destructive Testing in Nuclear Technology| 462 p.
Subject:
42 ENGINEERING; ALUMINIUM; ATTENUATION; CLADDING; DEFECTS; EDDY CURRENT TESTING; EFFICIENCY; FUEL CANS; HEAT EXCHANGERS; INSPECTION; MANUFACTURING; NUCLEAR FUELS; QUALITY ASSURANCE; READOUT SYSTEMS; SAFETY; SHEAR; TUBES; ULTRASONIC TESTING; URANIUM; WELDED JOINTS
OSTI ID:
22127294
Research Organizations:
International Atomic Energy Agency, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA13M2552082373
Submitting Site:
INIS
Size:
page(s) 225-244
Announcement Date:
Sep 12, 2013

Conference:

Citation Formats

Worlton, D. C. High-Volume Non-Destructive Test Applications at the Hanford Atomic Products Operation; Applications Industrielles des Essais Non Destructifs a l'Etablissement Nucleaire de Hanford; Provedenie bol'shogo chisla nedestruktivnykh ispytanii v ''khenford atomik prodakts opereishen''; Ensayos No Destructivos en Gran Escala Aplicados en Hanford. IAEA: N. p., 1965. Web.
Worlton, D. C. High-Volume Non-Destructive Test Applications at the Hanford Atomic Products Operation; Applications Industrielles des Essais Non Destructifs a l'Etablissement Nucleaire de Hanford; Provedenie bol'shogo chisla nedestruktivnykh ispytanii v ''khenford atomik prodakts opereishen''; Ensayos No Destructivos en Gran Escala Aplicados en Hanford. IAEA.
Worlton, D. C. 1965. "High-Volume Non-Destructive Test Applications at the Hanford Atomic Products Operation; Applications Industrielles des Essais Non Destructifs a l'Etablissement Nucleaire de Hanford; Provedenie bol'shogo chisla nedestruktivnykh ispytanii v ''khenford atomik prodakts opereishen''; Ensayos No Destructivos en Gran Escala Aplicados en Hanford." IAEA.
@misc{etde_22127294,
title = {High-Volume Non-Destructive Test Applications at the Hanford Atomic Products Operation; Applications Industrielles des Essais Non Destructifs a l'Etablissement Nucleaire de Hanford; Provedenie bol'shogo chisla nedestruktivnykh ispytanii v ''khenford atomik prodakts opereishen''; Ensayos No Destructivos en Gran Escala Aplicados en Hanford}
author = {Worlton, D. C.}
abstractNote = {Safety and efficiency of critical Hanford processes are assured with rapid, reliable, and automatic non-destructive tests. High-sensitive eddy-current and ultrasonic inspection systems are in routine use in the field and in manufacturing production processes to provide maximum quality assurance of large volumes of material in minimum inspection time. This paper describes inspection systems being used to ensure quality of Hanford's production nuclear-fuel manufacturing processes. Operated as regular in-line manufacturing equipment, these systems employ ultrasonic attenuation measurements to monitor grain structure of bare uranium fuel cores, ultrasonic and eddy- current techniques to ensure adequate bonding and thickness of 0.040 in aluminium cladding on canned elements, and novel wide-band, high-resolution ultrasonic inspection techniques to detect defects in the fuel end-weld closures. Combined eddy-current and ultrasonic tests are applied simultaneously to perform a complete fuel- element inspection on a nine-second cycle; defective elements are automatically segregated from the process stream. Emphasis is given to advanced ultrasonic test methods of inspecting thin-walled, fuel-sheath tubing. Special highly focused transducers are used with wide-band circuitry to generate pure shear waves in 0.015-in-thick wall tubing. Lamb and other complicated wave motions are excluded so that tests results are readily interpreted and reproduced. Novel, economical methods of producing defect standards have been developed, as have critically important methods of ensuring uniform operating characteristics of the transducers themselves. Automatic tubing inspection equipment has been developed, and results of its routine use in testing some 30 000 ft of tubing are summarized. Finally, eddy-current techniques developed specifically for inspecting installed heat-exchanger tubing are reviewed. The technique employs novel read-out features which plot defect indications as oscilloscope patterns whose size and shape reveal defect magnitude, location within the tube wall, and depth. Probe wobble and harmless tube kinks and bends are plotted with a characteristic pattern readily distinguishable from genuine defects. Results of applying the test to 750 000 ft of installed tubing under difficult field conditions are summarized. (author) [French] On a recours a des essais non destructifs - rapides, surs et automatiques - pour assurer la securite et l'efficacite des operations critiques a Hanford. On utilise couramment des methodes de controle tres sensibles, fondees sur les courants de Foucault et les ultrasons, pour verifier avec le maximum d'assurance et dans le minimum de temps la qualite d'importants volumes de matieres et produits. Le memoire decrit les appareils de controle utilises pour s'assurer de la qualife de la fabrication des combustibles nucleaires a Hanford. Ces appareils, qui font partie integrante de l'equipement de fabrication, appliquent le principe de l'attenuation des ondes ultrasonores pour controler la structure granulaire de barreaux d'uranium non gaine, les ultrasons et les courants de Foucault pour controler la liaison entre l'uranium et sa gaine en aluminium ainsi que l'epaisseur de cette derniere (1 mm), et une nouvelle methode ultrasonore (large bande, haute resolution) pour la detection des defauts dans les soudures aux extremites des cartouches de combustible. Des methodes combinees (courants de Foucault et ultrasons) sont appliquees simultanement pour l'inspection complete d'un element combustible en neuf secondes; les elements defectueux sont rejetes automatiquement. Le memoire expose en detail les methodes ultrasonores perfectionnees pour le controle des gaines de combustible a parois minces. Des traducteurs speciaux a forte focalisation sont utilises avec un circuit a bande large pour produire des ondes de rotation pures dans un tube de 0,37 mm d'epaisseur. Les ondes de Lamb et autres mouvements ondulatoires complexes sont exclus, de sorte que les resultats peuvent etre facilement interpretes et reproduits. On a mis au point des methodes nouvelles et economiques de production d'etalons de defauts, ainsi que des methodes permettant de donner aux traducteurs eux-momes des caracteristiques uniformes de fonctionnement. On a egalement mis au point un appareil d'inspection automatique des tubes; le memoire resume les resultats de l'utilisation courante de cet appareil pour controler quelque 10 000 m de tubes. Enfin, le memoire passe en revue les methodes fondees sur les courants de Foucault qui ont ete mises au point specialement pour l'inspection des tubes des echangeurs de chaleur apres montage. On a recours a un systeme inedit de lecture qui enregistre graphiquement les indications de defauts de la meme maniere qu'un oscillographe: l'amplitude et la forme du signal indiquent l'importance du defaut, son emplacement dans la paroi du tube et sa profondeur. Les petits mouvements de la sonde et les deformations sans importance de la surface du tube sont enregistres selon une courbe caracteristique, facile a distinguer de celle que produisent les veritables defauts. Le memoire resume les resultats de ce mode de controle pour 250 000 m de tubes installes. (author) [Spanish] La seguridad y la eficiencia de las operaciones criticas efectuadas en Hanford se logran por medio de ensayos no destructivos rapidos, seguros y automaticos. Tanto in situ como en los procesos de fabricacion se emplean normalmente sistemas de inspeccion de alta sensibilidad, ultrasonicos y por corrientes de Foucault, que aseguran la calidad maxima de grandes cantidades de material en un tiempo de inspeccion mfnimo. La memoria describe los sistemas de inspeccion que se emplean en Hanford para mantener la calidad de los procesos de fabricacion de combustibles nucleares. Estan intercalados en la cadena de produccion y emplean mediciones de atenuacion ultrasonica para comprobar la estructura granular de barras de uranio sin revestimiento, tecnicas ultrasonicas y de corrientes de Foucault para verificar la correcta union yelespesor(0,040pulg) del revestimiento de aluminio de otros elementos combustibles, y un nuevo sistema de inspeccion de banda ancha y elevada resolucion que emplea ultrasonidos para detectar fallas en las soldaduras que cierran los elementos combustibles. Los ensayos por corrientes de Foucault y ultrasonidos se combinan aplicandolos simultaneamente para efectuar una inspeccion completa del elemento combustible en un ciclo de 9 s; los elementos defectuosos se retiran automaticamente de la cadena de produccion. La memoria destaca los metodos avanzados de ensayo ultrasonico para inspeccionar tubos de revestimiento de paredes del gadas. Se emplean transductores de alto enfoque, con circuitos de banda ancha, para generar ondas transversales puras en tubos de 0, 015 pulg de espesor de pared. Se excluyen las ondas de Lamb y otras ondas complicadas, de manera que es facil interpretar y reproducir los resultados de los ensayos. Se han perfeccionado metodos nuevos y economicos para producir defectos tipo, asi como metodos de importancia fundamental para asegurar la uniformidad de las caracteristicas de funcionamiento de los transductores mismos. Se ha construido equipo para la inspeccion automatica de tubos y la memoria resume los resultados obtenidos en el ensayo de unos 10 000 m de tuberia. Por ultimo, la memoria revisa la aplicacion de las corrientes de Foucault que se han desarrollado especificamente para inspeccionar tubos ya montados en intercambiadores de calor. Emplea nuevos metodos de lectura que en un osciloscopio indican los defectos como perfiles cuyo tamano y forma revela la magnitud, la posicion dentro de la pared del tubo y la profundidad a que se encuentra el defecto. Las inestabilidades de la probeta y las deformaciones y pliegues inofensivos de los tubos aparecen con un perfil caracteristico que se distingue netamente de los defectos reales. La memoria resume los resultados obtenidos con este metodo de ensayo, que se ha aplicado en condiciones dificiles a 250 000 m de tuberia instalada. (author) [Russian] Bezopasnost' i jeffektivnost' kriticheskih processov Henforda garantiruetsja bystrym, nadezhnym i avtomaticheskim sposobom ispytanija obrazcov bez razrushenija obolochki. Vysokochuvstvitel'nye toki Fuko i ul'trazvuk nahodjat svoe obychnoe primenenie v jetoj oblasti i v processah izgotovlenija izdelij dlja togo, chtoby obespechit' maksimal'nuju garantiju kachestva bol'shih kolichestv materiala za mini- mal'nyj period vremeni. Opisyvajutsja sistemy, ispol'zuemye dlja togo, chtoby obespechit' kachestvennost' processov Henforda po izgotovleniju izdelij jadernogo topliva. Dejstvujushhie kak obychnoe oborudovanie jeti sistemy ispol'zujut izmerenija ul'trazvukovogo zatuhanija dlja togo, chtoby prokontrolirovat' strukturu zerna aktivnyh zon nejekranirovannogo uranovogo topliva, a ul'trazvukovoj metod i metod tokov Fuko dlja togo, chtoby obespechit' sootvetstvujushhuju po- losnost' i tolshhinu 0,040 djujma aljuminievogo pokrytija jelementov ' kassetah, i novyj shirokopolosnyj metod s vysokorazreshajushhej sposobnost'ju ul'trazvukovogo obsledovanija dlja obnaruzhenija defektov v svarnyh shvah na stykah obolochki. Ob{sup e}dinenie ispytanij s pomoshh'ju ul'trazvuka i tokov Fuko primenjaetsja odnovremenno dlja togo, chtoby provesti polnoe obsledovanie toplivnogo jelementa v devjatisekundnom cikle. Jelementy s defektom avtomaticheski udaljajutsja s potochnoj linii proizvodstva. Osobyj upor delaetsja na usovershenstvovannye metody ispytanij s pomoshh'ju ul'trazvuka po obsledovaniju tonkostennyh obolochnyh trub dlja toplivnyh jelementov. Ispol'zujutsja special'nye preryvateli s vysokoj fokusirovkoj vmeste s shirokopolosnoj shemoj dlja togo, chtoby poluchit' chistyj srez volny v trubah tolshhinoj 0,015 djujma. Prostejshie i bolee slozhnye volnovye dvizhenija iskljuchajutsja, poskol'ku rezul'taty ispytanij legko istolkovyvajutsja i vosproizvodjatsja. Razrabotany novye jekonomicheskie sposoby poluchenija standartov po defektam, poskol'ku imejutsja chrezvychajno vazhnye metody, obespechivajushhie edinoobrazie dejstvujushhih harakteristik samih preobrazovatelej. Razrabotan pribor po avtomaticheskomu obsledovaniju trub, i vkratce izlagajutsja rezul'taty ego obychnogo ispol'zovanija po ispytaniju trub, obshhej dlinoj pochti 30 tys. futov. I, nakonec, rassmatrivaetsja metod tokov Fuko, razrabotannyj special'no dlja obsledovanija ustanovlennyh trub teploobmennika. Jetot metod neset v sebe novye osobennosti, on registriruet ukazanija o defektah na shkale oscillografa, razmery i konfiguracija kotorogo vskryvajut velichinu defekta, ego raspolozhenie v stenke truby i glubinu. Na diagramm registrirujutsja kolebanija shhupa i neopasnye petli trub i izgiby vmeste s harakternym obrazcom, chetko otlichajushhimsja ot nastojashhih defektov. Vkratce izlagajutsja rezul'taty primenenija jetih ispytanij dlja trub obshhej dlinoj 750 tys futov, ustanovlennyh v trudnyh polevyh uslovijah. (author)}
place = {IAEA}
year = {1965}
month = {Oct}
}