公开(公告)号：US20240402136A1

公开(公告)日：2024-12-05

申请号：US18689873

申请日：2022-08-13

Applicant: STEELEMAT S.À R.L

Inventor： Alexey EVDOKIMOV ,  Artemii SUBBOTIN ,  Sergii MALYNKA ,  Georgii SIDOROV

IPC: G01N29/24 ,  G01N29/04 ,  G01N29/22 ,  G01N29/265

Abstract: An ultrasonic non-destructive test Device (1) of hybrid electromagnetic acoustic/Laser transducers type comprising a monolithic Rotating Optical Assembly (22) of agile laser array transmitters providing multifocal laser beams guidance by jumps for the control of metallurgical objects (5).
It comprises: a Rotating Shaft (14); an Incoming Laser Source (16), producing an Incoming Laser Beam (18); a monolithic Rotating Optical Assembly (22), equipped with multiple Mirrors (M) which are rigidly linked to it in rotation in perpendicular circles and around the same Rotating Shaft (14); a Drive Motor (24-a); and a set of directional Electromagnetic Acoustic Transducers (34).
It makes it possible to periodically generate a plurality of Secondary Laser Beams (45) and of Deflected Secondary Laser Beams (124) distributed over an Impacts Dotted Line (70) and two parallel Deviated Impacts Dotted Line (130), impacting Rectangular Laser Impact Spots (47, 139, 142) of the Control Area (3).
It detects and qualifies Surface and Sub-surface Discontinuities (12, 13) of Metal Workpieces (5) having any orientations.
A main industrial application is the continuous three-dimensional control of steel slabs during their continuous casting in a steel mill.

公开(公告)号：US20230296566A1

公开(公告)日：2023-09-21

申请号：US18018889

申请日：2021-10-13

Applicant: STEELEMAT S.À R.L

Inventor： Alexey EVDOKIMOV ,  Artemii SUBBOTIN ,  Sergii MALYNKA

IPC: G01N29/24 ,  G01N29/04

CPC classification number: G01N29/2412 ,  G01N29/041 ,  G01N29/043 ,  G01N29/2418 ,  G01N2291/0234

Abstract: An EMAT system (1) for detecting surface and internal discontinuities (2) in thick conductive structures (90) at high temperatures, comprising a magnet (4) that generates a static magnetic field (SMF) and an HF electric coil (6) for inducing, or being induced by, eddy currents in the material (14). It comprises a perforated matrix-array laminated magnetic core (22) placed between the HF electric coil (6) and the inspected material (3), which is made up of a multitude of apertured HF active laminae (29) incorporating a ferromagnetic material, and of apertured insulating passive laminae (53). Trough-holes (41, 57) are drilled through each lamina (29, 53) and form a grooved cylindrical aperture (39). Parallel induced-current loops (43) encircle each magnetic trough-hole (41) of the HF active laminae (29). Cooling means (58) force a heat-transfer fluid (60) to pass through the grooved cylindrical aperture (39).

公开(公告)号：US20240102969A1

公开(公告)日：2024-03-28

申请号：US18276060

申请日：2022-03-14

Applicant: STEELEMAT S.À R.L

Inventor： Artemii SUBBOTIN ,  Sergii MALYNKA ,  Georgii SIDOROV ,  Alexey EVDOKIMOV

IPC: G01N29/24 ,  G01N29/04 ,  G01N29/22 ,  G01N29/26

CPC classification number: G01N29/2418 ,  G01N29/043 ,  G01N29/221 ,  G01N29/2412 ,  G01N29/26 ,  G01N29/0645 ,  G01N2291/0234 ,  G01N2291/0289 ,  G01N2291/103 ,  G01N2291/106

Abstract: A UNDT Device (1) comprising a dual EMAT/laser-pulse matrix array for scanning ultrasonically and for identifying discontinuities (D) in a conductive metal object (2), which device comprises a) a Pulsed Laser Input Source (4) that produces a Pulsed Laser Input Beam (ILB); b) a Matrix Multi Beams Laser Transmitter comprising i) mechanical Beam-Steering Means (17, 17a) configured to be struck by the Laser Input Beam (ILB) and to periodically diffract it into Secondary Laser Beams (18, 18a, 18b, 18c); and ii) Mechanical Beam-Leaping Means (19) intended to be struck by the Secondary Laser Beams and to periodically diffract them into n Pulsed Laser Output Beams (OLBk) and to focus these onto n Pulse Points (SPk) located at the centre of n Pulse Cells (EPk) of a periodic Laser Pulses Array (LEA); and c) a Receivers Assembly (SE) made up of EMAT Receivers (Emi) that are organised into n Sensors Groups (SGi) that are arranged in n Detection Cells (RWi) of a periodic EMAT Receivers Array (ERA). The Spatial Periodicities (8, 7) and the dimensions (n) of the Laser Pulses Array (LEA) and of the EMAT Receivers Array (ERA) are equal.