SU1223135A1 - Arrangement for manual ultrasonic article weld inspection at separate ultrasonic converter cut-in circuit - Google Patents

Description

1 12231

The invention relates to means; non-destructive testing and can be used for ultrasonic inspection of welds of welded joints of metal structures, .5

The aim of the invention is to extend the functionality by swiveling the guides and making spatial orientation units of 10 ultrasonic transducers using elastic disks,

Fig. 1 shows a device for manual ultrasonic testing of welded joints of products with a separate connection scheme for ultrasonic transducers; FIG. 2 is a section A — A ra of FIG. 1; Fig. 3 shows a variant of the hinged joint of the guides for the case of ultrasonic testing of various 20 thick joints; Fig, 4 is a diagram of the operation of the device according to the drawl-diagram; FIG. 5 is a view B of FIG. 4; in figs 6-. placement of ultrasonic transducers of the device in the control of 25 tandem scheme; in Fig. 7, view B on g, 6; FIG. 8 is a control circuit using shadow and echoken methods.

The device contains rigid guides 1 with movably fixed JQ on them by two nodes of spatial orientation of ultrasonic transducers 2 rigidly fixed on them, two movably placed on. guides 1 of the slide 3 with clamps 4, connecting direction 1 of the cylindrical hinge in the form of a rod 5 with the sleeve 6, each of the two spatial orientation units of the ultrasonic transducers 2 made in the form of an elastic disk 7 rigidly connected to the slide 3 and rigidly connected to it 8 for attaching an ultrasound transducer 2 to it, with the guides 1 being made j in the form of strips hinged by means of a cylindrical hinge.

In addition, the device contains screws 9 for fastening the elastic JQ disk 7 to the slider 3 and additional screws 10 for fastening the holder 8 to the elastic disk 7, as well as a controlled article 11 with a weld 12 and a defect 13 of the latter, jj

Device for manual ultrasound control of CBapHbjx seams of products with a separate wiring diagram Ultra35J

audio converters working

in the following way.

Before starting the control, the device is mounted on the test item 11. To control the scheme (Figs 4 and 5), when searching for transverse defects 13 of the weld 12, ultrasonic transducers 2 attached by additional screws 10 to the clips 8 are mounted in the clips 8 towards each other. Further, the guides 1 are set at an angle If within a range of 110-120 ° to ensure the maximum amplitude of the signal from the defect 13 and are fixed by the rod 5 of the cylindrical hinge. At the same time, the slide blocks 3 with ultrasonic transducers 2 are turned around the directions 1 so that the contact surfaces of the ultrasound transducers 2 are in contact with the surface of the controlled product, which is especially important when checking the welded joints of cylindrical controlled products

11 or controlled products 11 with a break of the connected surfaces. After that, the sliders 3 are fixed by the clips 4,

To control the tandem scheme (Figs 6 and 7) when searching for defects 13 oriented along the weld

12 and perpendicular to the plane of the test article 11, the guide 1 is mounted on the same straight or acute angle to each other. When inspecting the weld 12, connect the different thickness parts of the test article 11, on the rod 5 between the guides 1 a sleeve is installed 6 with a height equal to the thickness difference of the welded elements. Slides 3 with converters 2, oriented in one direction, are mounted and fixed on rails 1,

The location of the ultrasonic transducers 2 at an acute angle reduces the uncontrolled area in the lower part of the weld 12.

At. By controlling the shadow and echoken methods (Fig. 8), the guides 1 are mounted on the same straight line, and the sliders 3 with the ultrasonic transducers 2 are oriented towards each other. The use of disks 7 of elastic material, attached with screws 9 to the sliders

3, provides the necessary mobility of their attachment to the sliders 3 and allows, in the process of manual scanning, to better track the okoloshovkuyu surface of the test product 11.

Claims (1)

Claim 1 Device for manual ultrasonic testing of welded joints of products with a separate connection circuit of ultrasonic transducers, containing rigid and guides with two nodes of spatial orientation rigidly fixed on them with ultrasound2231354 Top-up transducers, characterized in that, in order to extend the functionality, it is equipped with two movably placed on sliders with clamps and connecting guide cylindrical hinge in the form of a rod and bushing, each of two nodes of spatial orientation of ultralight 10 transducers made in the form of an elastic disk rigidly connected to the slide and a holder rigidly connected to it for attaching an ultrasound transducer to it, and the guides made in the form of two strips, L arnirno connected with a cylindrical hinge. Fig.Z g FIG l View b FIG. five  g. eleven P 1 FIG. 6 View B 1x // FIG. 7  FIG. eight Compiled by L. Blokhin Editor TiGratillo Tehred opko Proofreader M.Samborska Order 1706/47 Edition 778 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Branch PShPatent, Uzhgorod, st. Project, 4