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Apparatus and method for non-destructive control of metal properties

A transducer and active surface technology, applied in measurement devices, solids analysis using sonic/ultrasonic/infrasonic waves, material analysis using sonic/ultrasonic/infrasonic waves, etc., can solve problems such as infeasibility and long inspection duration for industrial applications , to achieve a good detection rate

Active Publication Date: 2018-12-25
法国瓦卢瑞克钢管公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The result is that the inspection duration is too long to be feasible for industrial applications

Method used

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  • Apparatus and method for non-destructive control of metal properties
  • Apparatus and method for non-destructive control of metal properties
  • Apparatus and method for non-destructive control of metal properties

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no. 1 example

[0080] According to a first embodiment of the invention, when the main plane of the working surface of the sensor is a plane, the emission direction is inclined with respect to its normal direction, or when said plane is a curved surface, the emission direction is inclined with respect to its central region . The ultrasound beam can be considered as a deflected beam. The beam diverges about said line of sight.

[0081] According to a second embodiment of the invention, the emission direction corresponds substantially to its normal when the main plane of the working surface of the sensor is a plane, or to its central region when said plane is curved. The ultrasound beams are divergent. In particular, the beam is defocused.

[0082] now refer to Figure 6A .

[0083] The figure shows a multi-element sensor C, which is generally planar and square in shape, with a geometric center referenced S.

[0084] The direction of propagation D of the ultrasound beam, also referred to ...

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Abstract

The invention discloses a device for testing metallurgical products comprising an ultrasonic sensor comprising a plurality of elementary transducers (29) operable independently of each other and distributed according to a two-dimensional model. The first electronic part (27) is capable of activating each of the elementary transducers according to at least one time law corresponding to the emission of ultrasound waves in the line of sight. A second electronic component (31) is capable of processing at least a part of the signal captured by each elementary transducer. Each temporal law is arranged such that the respective emission produces an ultrasound beam that generally diverges about the line of sight as it moves away from the ultrasound sensor. The invention also discloses a corresponding detection method.

Description

technical field [0001] The invention relates to the field of non-destructive testing of metallurgical products, in particular metallurgical products with elongated profiles, generally ranging from a few meters to tens of meters. Background technique [0002] For a better understanding of the invention, it will be described as an example of a metallurgical product in the case of a generally tubular product, in particular a pipe. However, the invention is intended to have wider application. [0003] Large length tubes are widely used. Examples of areas of application that may be mentioned are electricity production where boiler tubes are used, oil and gas recovery where tubes are used for drilling, extraction and transportation (pipelines), or possibly in civil engineering without any doubt or without Questionably mechanical construction in the automotive and aerospace industries. [0004] Like most metallurgical products, tubes are susceptible to manufacturing-related proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/26
CPCG01N29/262G01N2291/0289G01N2291/106G01N29/04G01N29/2437G01N2291/0234G01N2291/2634
Inventor R.米歇尔A.诺埃尔M.瓦赫
Owner 法国瓦卢瑞克钢管公司
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