DE10318444A1 - Image quality indicator (IQI) for radiographic material testing, especially non-destructive testing of industrial components, comprises a series of spheres of diameter less than 1mm mounted on a support film - Google Patents
Image quality indicator (IQI) for radiographic material testing, especially non-destructive testing of industrial components, comprises a series of spheres of diameter less than 1mm mounted on a support film Download PDFInfo
- Publication number
- DE10318444A1 DE10318444A1 DE10318444A DE10318444A DE10318444A1 DE 10318444 A1 DE10318444 A1 DE 10318444A1 DE 10318444 A DE10318444 A DE 10318444A DE 10318444 A DE10318444 A DE 10318444A DE 10318444 A1 DE10318444 A1 DE 10318444A1
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- Germany
- Prior art keywords
- spheres
- support film
- testing
- image quality
- reference body
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
Description
Die radioskopische Materialprüfung wird bei der industriellen Serienprüfung von Werkstücke häufig eingesetzt. Sie zeichnet sich durch eine sehr hohe Flexibilität hinsichtlich Größe und Material der zu untersuchenden Werkstücke aus.The radioscopic material testing is often used in industrial series testing of workpieces. It is characterized by a very high level of flexibility Size and material of the workpieces to be examined out.
Durch die Online-Betrachtung des Durchleuchtungsbildes des Werkstücks können Fehlstellen schnell und zuverlässig erkannt werden. Ein Schwerpunkt der radioskopischen Materialprüfung ist die Untersuchung von Schweißnähten auf Gaseinschlüsse und Poren. Die Größe der Fehlstellen hat einen großen Einfluss darauf, inwieweit die Sicherheit einer Schweißnaht garantiert werden kann. Wesentlich bei der radioskopischen Materialprüfung ist deshalb die sichere Bestimmung der Größe von Fehlstellen.By the online viewing of the fluoroscopic image of the workpiece can quickly spot defects and reliable be recognized. One focus of radioscopic material testing is the inspection of welds gas inclusions and pores. The size of the imperfections has a big one Influence on the extent to which the safety of a weld seam is guaranteed can be. It is therefore essential for radioscopic material testing the reliable determination of the size of imperfections.
Zur Größenbestimmung der Fehlstellen werden häufig Referenzkörper sogenannte Bildgüteprüfkörper (DIN 462) eingesetzt. Diese Bildgüteprüfkörper bestehen aus mehreren parallel angeordneten Metallstegen, die in eine rechteckige Plastikfolie eingeschweißt sind. Die Größe der Plastikfolie entspricht etwa 60 × 70 mm die Metalldrähte haben eine Länge von 10 bis 25mm und unterschiedliche Durchmesser. Die bekannten Bildgüteprüfkörper sind für größere Werkstücke mit ebenen Oberflächen gut geeignet. Für kleinere Werkstücke (Größenbereich unter 10 cm) mit gewölbten Oberflächen sind sie jedoch ungeeignet. Die Befestigung der Plastikfolie am Werkstück ist teilweise nicht möglich. Teilweise erscheinen die Stege doppelt auf dem Beobachtungsbildschirm und ihre relative Lage zur prüfenden Schweißnaht kann nur durch aufwendiges Drehen des Werkstücks festegestellt werden. Entscheidend hierbei ist, dass die doppelt sichtbaren Stege auf dem Bildschirm aufgrund der Abbildungsverhältnisse des Radioskopiesystems mit unterschiedlicher Ausdehnung erscheinen und deshalb eine sichere Zuordnung von Stegdurchmesser und Größe der Fehlstelle nicht möglich ist.to sizing the flaws are common reference body so-called image quality test specimen (DIN 462) used. These image quality test objects pass made of several parallel metal bars, which are rectangular Welded in plastic film are. The size of the plastic sheet corresponds to about 60 × 70 mm the metal wires have a length from 10 to 25mm and different diameters. The well-known Image quality test specimens are for larger workpieces with flat surfaces well suited. For smaller workpieces (Size range under 10 cm) with domed surfaces however, they are unsuitable. The plastic film is partially attached to the workpiece not possible. Sometimes the bars appear twice on the observation screen and their position relative to the test weld seam can only be determined by complex turning of the workpiece. Crucial here is due to the double visible webs on the screen the image relationships of the radio copy system appear with different dimensions and therefore not a reliable assignment of the web diameter and size of the defect possible is.
Aufgabe der vorliegenden Erfindung ist es deshalb einen Referenzkörper für die radioskopische Materialprüfung anzugeben, der eine einfache und sichere Bestimmung von Fehlstellen insbesondere bei kleineren Werkstücken ermöglicht.task The present invention is therefore to provide a reference body for radioscopic material testing, which is a simple and reliable determination of defects, particularly in the case of smaller workpieces allows.
Weiterhin soll der Referenzkörper einfach und kostengünstig herstellbar sein.Farther should be the reference body simple and inexpensive be producible.
Gelöst wird diese Aufgabe durch dem in Anspruch 1 angegebenen Merkmale.Is solved this task by the features specified in claim 1.
Vorteilhafte Weiterentwicklung der Erfindung sind in den Unteransprüchen angegeben.advantageous Further developments of the invention are specified in the subclaims.
Die wesentliche Idee der Erfindung besteht darin, Metallkugeln als Referenzkörper zu verwenden, die auf einer flexiblen Trägerfolie angebracht sind.The The essential idea of the invention is to use metal balls as reference bodies use that are attached to a flexible carrier film.
Der Durchmesser der Metallkugeln sollte im Größenordnungsbereich der zu erkennenden Fehlstellen liegen.The The diameter of the metal balls should be in the order of magnitude of those to be recognized Missing parts.
In einer vorteilhaften Weiterentwicklung der Erfindung sind die Metallkugeln in regelmäßigen Abständen angeordnet.In An advantageous further development of the invention are the metal balls arranged at regular intervals.
In einer besonderen Ausgestaltung der Erfindung sind die Metallkugeln aus dem gleichen Material wie das zu prüfende Werkstück. Dadurch lassen sich Fehlstellen mit einer noch größeren Sicherheit auf dem Beobachtungsbildschirm erkennen.In A special embodiment of the invention are the metal balls made of the same material as the workpiece to be tested. Thereby imperfections can be viewed with even greater certainty on the observation screen detect.
Nachfolgend ist die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.following the invention is explained in more detail with reference to an embodiment shown in the drawing.
Es zeigen:It demonstrate:
Die
in
In
In
Beide
Referenzkörper
Nachfolgend
ist das erfindungsgemäße Verfahren
näher erläutert. Der
erfindungsgemäße Referenzkörper
Mit
Hilfe des erfindungsgemäßen Referenzkörpers
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10318444A DE10318444A1 (en) | 2003-04-24 | 2003-04-24 | Image quality indicator (IQI) for radiographic material testing, especially non-destructive testing of industrial components, comprises a series of spheres of diameter less than 1mm mounted on a support film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10318444A DE10318444A1 (en) | 2003-04-24 | 2003-04-24 | Image quality indicator (IQI) for radiographic material testing, especially non-destructive testing of industrial components, comprises a series of spheres of diameter less than 1mm mounted on a support film |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10318444A1 true DE10318444A1 (en) | 2004-11-11 |
Family
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Family Applications (1)
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---|---|---|---|
DE10318444A Withdrawn DE10318444A1 (en) | 2003-04-24 | 2003-04-24 | Image quality indicator (IQI) for radiographic material testing, especially non-destructive testing of industrial components, comprises a series of spheres of diameter less than 1mm mounted on a support film |
Country Status (1)
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DE (1) | DE10318444A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105004742A (en) * | 2015-08-05 | 2015-10-28 | 南车青岛四方机车车辆股份有限公司 | Image quality indicator and radiographic testing quality judgment method applying same |
CN109444180A (en) * | 2018-10-24 | 2019-03-08 | 北京卫星制造厂有限公司 | NF series heat insulation material product detection method of X-ray |
CN110849920A (en) * | 2019-11-28 | 2020-02-28 | 中国航发沈阳黎明航空发动机有限责任公司 | Preparation method and application of image quality measuring block for pipe weld seam radiographic testing |
DE102019219173A1 (en) * | 2019-12-09 | 2021-06-10 | Carl Zeiss Industrielle Messtechnik Gmbh | Test specimen and method for determining a smallest defect size that can be determined by means of a computer tomograph |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4028545A (en) * | 1976-02-17 | 1977-06-07 | The United States Of America As Represented By The United States Energy Research And Development Administration | Method of simulating spherical voids for use as a radiographic standard |
US5149965A (en) * | 1990-04-23 | 1992-09-22 | Temple University | Precision radiography scaling device |
JPH09257446A (en) * | 1996-03-19 | 1997-10-03 | Shimizu Corp | Method and apparatus for measurement of thickness by using x-rays |
EP1245950A1 (en) * | 2001-03-16 | 2002-10-02 | YXLON International X-Ray GmbH | Method of using a cylindrical test body and method for manufacturing the same |
-
2003
- 2003-04-24 DE DE10318444A patent/DE10318444A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4028545A (en) * | 1976-02-17 | 1977-06-07 | The United States Of America As Represented By The United States Energy Research And Development Administration | Method of simulating spherical voids for use as a radiographic standard |
US5149965A (en) * | 1990-04-23 | 1992-09-22 | Temple University | Precision radiography scaling device |
JPH09257446A (en) * | 1996-03-19 | 1997-10-03 | Shimizu Corp | Method and apparatus for measurement of thickness by using x-rays |
EP1245950A1 (en) * | 2001-03-16 | 2002-10-02 | YXLON International X-Ray GmbH | Method of using a cylindrical test body and method for manufacturing the same |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105004742A (en) * | 2015-08-05 | 2015-10-28 | 南车青岛四方机车车辆股份有限公司 | Image quality indicator and radiographic testing quality judgment method applying same |
CN105004742B (en) * | 2015-08-05 | 2018-04-20 | 中车青岛四方机车车辆股份有限公司 | A kind of ray detection quality judging method of image quality indicator and the application image quality indicator |
CN109444180A (en) * | 2018-10-24 | 2019-03-08 | 北京卫星制造厂有限公司 | NF series heat insulation material product detection method of X-ray |
CN109444180B (en) * | 2018-10-24 | 2021-06-11 | 北京卫星制造厂有限公司 | X-ray detection method for NF series heat-proof material products |
CN110849920A (en) * | 2019-11-28 | 2020-02-28 | 中国航发沈阳黎明航空发动机有限责任公司 | Preparation method and application of image quality measuring block for pipe weld seam radiographic testing |
CN110849920B (en) * | 2019-11-28 | 2021-12-24 | 中国航发沈阳黎明航空发动机有限责任公司 | Preparation method and application of image quality measuring block for pipe weld seam radiographic testing |
DE102019219173A1 (en) * | 2019-12-09 | 2021-06-10 | Carl Zeiss Industrielle Messtechnik Gmbh | Test specimen and method for determining a smallest defect size that can be determined by means of a computer tomograph |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8141 | Disposal/no request for examination |