EP 2513644 A1 20121024 - METHOD FOR TESTING CONNECTIONS OF METAL WORKPIECES TO PLASTIC COMPOUNDS FOR CAVITIES BY MEANS OF ULTRASOUND
Title (en)
METHOD FOR TESTING CONNECTIONS OF METAL WORKPIECES TO PLASTIC COMPOUNDS FOR CAVITIES BY MEANS OF ULTRASOUND
Title (de)
VERFAHREN ZUR PRÜFUNG VON VERBINDUNGEN METALLISCHER WERKSTÜCKE MIT KUNSTSTOFFMASSEN AUF HOHLRÄUME MITTELS ULTRASCHALL
Title (fr)
PROCÉDÉ DESTINÉ À CONTRÔLER LA PRÉSENCE ÉVENTUELLE DE CAVITÉS DANS DES LIAISONS DE PIÈCES MÉTALLIQUES AVEC DES MATIÈRES PLASTIQUES AU MOYEN D'ULTRASONS
Publication
Application
Priority
- DE 102009060106 A 20091217
- DE 2010001406 W 20101129
Abstract (en)
[origin: WO2011072638A1] The invention relates to a method for testing connections of metal workpieces to plastic compounds for cavities by means of ultrasound, wherein the plastic compound is arranged between the workpiece as an intermediate layer or is connected to the workpiece on one side and the cavity is located within the plastic compound, wherein the cavity is connected to the workpiece by means of a remaining plastic layer or plastic skin and wherein the plastic compound is exposed to ultrasound signals of a certain test frequency and pulse length from the metal side of the workpiece by means of at least one ultrasonic probe, and in particular the ultrasound signals reflected by defects present in the plastic compound are detected by the same or another ultrasonic probe and converted into electrical signals that can be evaluated and subjected to a threshold observation. The test frequency of the ultrasound signals is set in a range of 1 to 10 MHz so that the damping of the sound after passing through the plastic skin is minimal.
IPC 8 full level
G01N 29/04 (2006.01); G01N 29/34 (2006.01)
CPC (source: EP US)
G01N 29/043 (2013.01 - EP US); G01N 29/343 (2013.01 - EP US); G01N 29/348 (2013.01 - EP US); G01N 2291/0231 (2013.01 - EP US); G01N 2291/044 (2013.01 - EP US)
Citation (search report)
See references of WO 2011072638A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011072638 A1 20110623; AP 2012006328 A0 20120630; AP 3295 A 20150531; BR 112012014750 A2 20160405; CN 102753968 A 20121024; CN 102753968 B 20150401; CO 6551717 A2 20121031; DE 102009060106 A1 20110622; EP 2513644 A1 20121024; MX 2012006840 A 20121129; RU 2012130135 A 20140127; RU 2515202 C2 20140510; US 2012318064 A1 20121220; US 9535040 B2 20170103
DOCDB simple family (application)
DE 2010001406 W 20101129; AP 2012006328 A 20101129; BR 112012014750 A 20101129; CN 201080057344 A 20101129; CO 12093442 A 20120604; DE 102009060106 A 20091217; EP 10808895 A 20101129; MX 2012006840 A 20101129; RU 2012130135 A 20101129; US 201013516462 A 20101129