SU868580A1 - Method of ultrasonic inspection of welded seams of articles - Google Patents
Method of ultrasonic inspection of welded seams of articles Download PDFInfo
- Publication number
- SU868580A1 SU868580A1 SU802885569A SU2885569A SU868580A1 SU 868580 A1 SU868580 A1 SU 868580A1 SU 802885569 A SU802885569 A SU 802885569A SU 2885569 A SU2885569 A SU 2885569A SU 868580 A1 SU868580 A1 SU 868580A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ultrasonic
- articles
- ultrasonic inspection
- welded seams
- polarity
- Prior art date
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
1one
Изобретение относитс к нераэрушающему ультразвуковому контрюлю и может быть использовано дл обнаружени дефектов в сварных швах, получаемых сваркой дсшлением.The invention relates to a non-destructive ultrasound contour and can be used to detect defects in welds produced by welding joints.
Известен способ ультразвукового контрол сварных швов, заключающийс в том, что возбуждают импульсы ультразвуковых колебаний, принимают отраженные от сварного шва сигналы и по ним суд т о дефекте t lНедостатком этого способа вл етс .необходимость точного слежени за сварным швом.The known method of ultrasonic testing of welds consists in excitation of ultrasonic vibration pulses, receiving signals reflected from the weld, and judging the defect t l. The disadvantage of this method is the necessity of tracking the weld.
Наиболее близким к предлагаемому вл етс способ ультразвукового контрол сварных швов изделий с валиком усилени , заключаквдийс в том, что излучают в изделие импульсы ультразвуковых колебаний в направлении шва, принимают отраженные ультразвуковые сигналы и по их параметрам суд т о качестве швaC2J.The closest to the present invention is the method of ultrasonic testing of welds of products with a reinforcement roller, concluded that pulses of ultrasonic vibrations in the direction of the weld are emitted into the product, receive reflected ultrasonic signals and judge the quality of the C2J weld by their parameters.
Недостатком этого способа вл етс низка достоверность контрол , св занна с тем, что угол ввода устанавливаетс в зависимости не от толщины свариваемых листов, а от изменени фазы 90 . .The disadvantage of this method is the low reliability of the control, due to the fact that the insertion angle is established depending not on the thickness of the sheets being welded, but on the change in phase 90. .
Цель изобретени - повышение достоверности контрол .Указанна цель достигаетс за счет того. Что сравнивают пол рность первого полупериода отраженного ультразвукового сигнала с Заданной пол рностью опорного сигнала и по результатам сравнени суд т о наличии дефекта.The purpose of the invention is to increase the reliability of the control. This goal is achieved due to that. That the polarity of the first half-period of the reflected ultrasonic signal is compared with the preset polarity of the reference signal and, based on the comparison results, the presence of a defect is judged.
10ten
На чертеже изображена блок-схема устройства, реализующего способ ультразвукового контрол сварных швов изделий с валиком усилени .The drawing shows a block diagram of a device that implements a method of ultrasonic testing of welds of products with a reinforcement roller.
Устройство содержит синхронизаторThe device contains a synchronizer
15 1,электрически св занные с ним генератор 2 ультразвуковых колебаний и генератор 3 строб-импульсов, который , в свою очередь, соединен со входом генератора 4 пол рности опорного напр жени , со вторым входом которого соединен один из выходов генератора 2 ультразвуковых колебаний , ультразвуковой преобразователь 5, вход которого св зан со вторым15 1, an ultrasonic vibration generator 2 electrically connected to it, and a strobe pulse generator 3, which, in turn, is connected to the input of the generator 4 of the polarity of the reference voltage, the second input of which is connected to one of the outputs of the ultrasonic vibration generator 2, ultrasonic a converter 5 whose input is connected to a second one
25 выходом генератора 2 ультразвуковых колебаний, усилитель 6, вход которого св зан с выходом ультразвукового преобразовател 5, пороговое устройство 7, один вход котррого св зан с25 output of the ultrasonic oscillator 2, the amplifier 6, the input of which is connected with the output of the ultrasonic transducer 5, the threshold device 7, one input is connected with
30 выходом усилител 6, а другой вход 30 output amplifier 6 and the other input
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802885569A SU868580A1 (en) | 1980-01-03 | 1980-01-03 | Method of ultrasonic inspection of welded seams of articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802885569A SU868580A1 (en) | 1980-01-03 | 1980-01-03 | Method of ultrasonic inspection of welded seams of articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU868580A1 true SU868580A1 (en) | 1981-09-30 |
Family
ID=20879069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802885569A SU868580A1 (en) | 1980-01-03 | 1980-01-03 | Method of ultrasonic inspection of welded seams of articles |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU868580A1 (en) |
-
1980
- 1980-01-03 SU SU802885569A patent/SU868580A1/en active
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