CS261532B1 - Apparatus for identification of boundaries of weld joint with phase discrimination of isolation - Google Patents
Apparatus for identification of boundaries of weld joint with phase discrimination of isolation Download PDFInfo
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- CS261532B1 CS261532B1 CS868652A CS865286A CS261532B1 CS 261532 B1 CS261532 B1 CS 261532B1 CS 868652 A CS868652 A CS 868652A CS 865286 A CS865286 A CS 865286A CS 261532 B1 CS261532 B1 CS 261532B1
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- coil
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
Riešenie zistenia štrukturálnyah zmien zvarového kovu voči základnému materiálu a tým určenie polohy zvarového spoja. 0- čelu sa dosiahne tým, že fázový rozdiel výstupného napátia mQstika, v ktorom je zapojená meracia cievka, ktorý vznikne přiložením meracej cievky na zvarový kov, je detekovaný fázovým detektorom a registrovaný meracím prístrojom. Využitie zariadenia je v jadrovej energetike a v strojárenstve.Addressing the Finding of Structural Changes weld metal to the base material and thereby determining the position of the welded joint. 0- the forehead is achieved by the phase difference of the outlet the tension mQstics in which it is connected a measuring coil formed by the application measuring coil for weld metal is detected by a phase detector and registered measuring instrument. Device usage is in nuclear power engineering and engineering.
Description
Vynález rieši zisťovanie hraníc zvarových spojov ocelí s odstraněným převýšením. Vynález sa týká defektoskopickej kontroly zvarov.The invention solves the detection of the welded joints boundaries of steels with cant. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a defectoscopic weld inspection.
Pri defektoskopickej kontrole zvarových spojov s odstráneným převýšením je potřebné presne určit polohu zvarového spoíja, ktorá vizúálnou prehliadkou inie je zistitel'ná. Doteraz používaný spósob zisťovania zvarových spojov je pomocou naleptávania. Povrch kontrolovaného zariadenia sa obrúsi v mieste předpokládaného zvarového spoja a naleptá sa kysélinou. Samotné zistenie zvarového spoja sa robí na základe rozdielného sfarbenia zvarového kovu a okolitého základného materiálu. Nedostatkom doterajšieho zisťovania zvarových spojov ocelí s odstráneným převýšením je nutnost jemného zabrusovania povrchu pre naleptávanie, nebezpečie poleptania kyselinou, obťiažnosť zisťovania zvarov v zíožitých prevádzkových podmienkach, časová náročnost zisťovania a vplyv subjektivného činitel’a na určenie polohy zvaru.In the case of defectoscopic inspection of welded seams, it is necessary to determine precisely the position of the weld seam which can be detected by the visual inspection. The method used to ascertain the weld seams used so far is by etching. The surface of the equipment to be inspected is abraded at the location of the supposed weld joint and etched with oxygen. The determination of the weld seam itself is based on the different color of the weld metal and the surrounding base material. The drawback of the previous detection of welded joints of canted steels is the necessity of fine grinding of the surface for etching, the risk of acid corrosion, the difficulty of detecting welds in certain operating conditions, the time consuming of the survey and the influence of the subjective factor to determine the weld position.
Vyššie uvedené nedostatky odstraňuje zariadenie na zisťovanie hraníc zvarových spojov s fázovou diskrimináciou oddialenia, ktorého podstata spočívá v tom, že meracia cievka zisťujúca hranicu zvaru je zapojená v mostíkovom zapojení spolu s kompenzačnou cievkou, odporom a dovažovacím potenciometrom, pričom napájacie body móstika sú spojené s vysokofrekvenčným oscilátořom a výstup móstika je zosilovačom a tvarovačom tvarovaný na rovnakú strmost nábežných hrán signálov s rožnou amplitúdou a je přivedený na bázu prvého tranzistora obvodu fázového rozlíšenia a súčasne výstup vysokofrekvenčného oscilátora tvarovaný druhým tvarovačom je připojený na bázu druhého tranzistora obvodu fázového rozlíšenia, pričom fázový rozdiel přivedených signálov vzniklý při premiestnení meracej cievky nad zvar je indikovaný meracím prístrojom připojeným paralelné ku kolektorem tranzistorov iázového rozlíšenia, na ktoré je súčasne sériovo připojený zafažovací odpor tranzistorov.The aforementioned drawbacks are eliminated by a device for detecting the phase boundary weld seam welding edge, the principle of which is that the measuring coil detecting the weld boundary is engaged in a bridging circuit together with a compensating coil, resistor, and potentiometer, wherein the power supply points are coupled to the high frequency the oscillator and the output of the amplifier and the shaper are shaped to equal the steepness of the leading amplitude signals of the signal and is applied to the first transistor circuit of the phase resolution circuit, and simultaneously the output of the radio frequency oscillator shaped by the second transformer is coupled to the base of the second transistor circuit of the phase resolution circuit, the signals generated when the measuring coil is moved over the weld is indicated by a measuring instrument connected in parallel to the collectors of the resistor transistors to which it is connected. early onset of serially connected transistors zafažovací resistance.
Hlavně výhody zariadenia pre zisťovanie hraníc zvarových spojov podlá vynálezu spočívajú v tom, že zariadenie zisťuje hraniceIn particular, the advantages of the welding boundary detection device of the invention are that the device detects boundaries
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS868652A CS261532B1 (en) | 1986-11-26 | 1986-11-26 | Apparatus for identification of boundaries of weld joint with phase discrimination of isolation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS868652A CS261532B1 (en) | 1986-11-26 | 1986-11-26 | Apparatus for identification of boundaries of weld joint with phase discrimination of isolation |
Publications (2)
Publication Number | Publication Date |
---|---|
CS865286A1 CS865286A1 (en) | 1988-07-15 |
CS261532B1 true CS261532B1 (en) | 1989-02-10 |
Family
ID=5437354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS868652A CS261532B1 (en) | 1986-11-26 | 1986-11-26 | Apparatus for identification of boundaries of weld joint with phase discrimination of isolation |
Country Status (1)
Country | Link |
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CS (1) | CS261532B1 (en) |
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1986
- 1986-11-26 CS CS868652A patent/CS261532B1/en unknown
Also Published As
Publication number | Publication date |
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CS865286A1 (en) | 1988-07-15 |
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