Mobile inspection device, mobile inspection method, and method for manufacturing steel material
An inspection device and mobile technology, which is applied to measuring devices, analyzing materials, and using sound waves/ultrasonic waves/infrasonic waves for material analysis, etc., can solve problems such as falls, time-consuming, and movement accuracy limits of ultrasonic flaw detection heads, and achieve simplified device structure Effect
Pending Publication Date: 2022-04-29
JFE STEEL CORP
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Problems solved by technology
Since the metal plate is often placed on the sleepers etc. installed on the ground, the inspector moves on the wet metal plate with steps, and there is a risk of falling
[0004] In addition, in order to perform high-precision ultrasonic flaw detection, it is necessary to accurately move the ultrasonic flaw detection head as the inspection sensor along the predetermined scanning line, and it takes a lot of time to draw the scanning line on the metal plate and other preparations. At the same time, manual operation of the ultrasonic flaw detection head There is a limit to movement accuracy
Method used
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Embodiment
[0129] use figure 1 The shown mobile inspection device 20 is used as a mobile inspection device of the embodiment, and inspects a steel sheet provided with artificial flaws (○Δ□). exist Figure 13 The inspection map (map) is shown in . An inspection map is created by associating the position of the inspection device main body 30 with the inspection data at the position.
[0130] The positions and shapes of the artificial flaws (○△□) provided on the steel plate are accurately known in advance, and it can be confirmed that the inspection by the mobile inspection device of the embodiment has sufficient accuracy.
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Provided are a mobile inspection device, a mobile inspection method, and a method for manufacturing a steel material, with which it is possible to suitably inspect an object to be inspected while simplifying the device configuration and greatly reducing the size and weight of the device. A mobile inspection device (20) is provided with a mobile inspection device main body (30) that inspects defects of an object (S) to be inspected while moving on a surface (Sa) of the object (S) to be inspected. The mobile inspection device main body (30) is provided with a trolley (31) which moves on a surface (Sa) by using at least two wheels (32) which can rotate forwards and reversely, and at least one inspection sensor (44) which is configured on the front end side or the rear end side of the trolley (31). An inspection area of an inspection object (S) is divided into two divided areas (A1), (A2) that sandwich a straight line, and the trolley (31) moves in each of the two divided areas (A1), (A2) formed by division in a state in which the inspection sensor (44) faces side edges (A1a), (A2a) of the divided areas (A1), (A2) that face the straight line.
Description
technical field [0001] The present invention relates to a mobile inspection device, a mobile inspection method, and a steel material manufacturing method for inspecting defects of an inspection object while moving on the surface of the inspection object. Background technique [0002] Conventionally, in order to ensure the quality of metal plates such as steel plates to be inspected, inspection of surface defects and internal defects of steel plates and the like by ultrasonic flaw detection or the like has been performed. For example, in ultrasonic flaw detection, when on a production line (online), a plurality of ultrasonic flaw detection heads arranged side by side as inspection sensors are brought into contact with a metal plate such as a steel plate conveyed on a conveyor roller of the production line via a water film to perform automatic inspection. In addition, when offline (offline), manual inspection is performed by moving the ultrasonic flaw detection head with a tro...
Claims
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IPC IPC(8): G01N29/04G01N29/265
CPCG01N29/04G01N29/265G01N2291/0234G01N29/2493G01N29/225G01N29/043G01N2291/2632G01N2291/0289G01N29/221G01N29/28G01N2291/023G01N2291/044G01N2291/263G01N33/20
Inventor 小林正树山下浩二宫胁光庸
Owner JFE STEEL CORP