CN105445297A - Radiographic testing device for small-diameter pipe joint girth welds and testing method - Google Patents
Radiographic testing device for small-diameter pipe joint girth welds and testing method Download PDFInfo
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- CN105445297A CN105445297A CN201510827922.4A CN201510827922A CN105445297A CN 105445297 A CN105445297 A CN 105445297A CN 201510827922 A CN201510827922 A CN 201510827922A CN 105445297 A CN105445297 A CN 105445297A
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- transillumination
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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- Analysing Materials By The Use Of Radiation (AREA)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
Abstract
A radiographic testing device for small-diameter pipe joint girth welds comprises clamping rotating shafts, a gland, an upper support cover, a linkage tooth disc, a base, handles, elastic materials, guide pipes, films, film clips and index dials, wherein the gland is tightly attached to the clamping rotating shafts to guarantee stable operation of the clamping rotating shafts, and the upper support cover is connected with the clamping rotating shafts and presses the linkage tooth disc; the linkage tooth disc is connected with the clamping rotating shafts through a gear and transmits rotation angles of handle operation, and the 60 clamping rotating shafts are enabled to rotate synchronously; the base supports the whole and stabilizes the gravity center of the device; the handles are connected with the clamping rotating shafts and used for adjusting angles; the elastic materials adopt materials with elasticity, and the films and the welds are attached. A testing method adopting the radiographic testing device for the small-diameter pipe joint girth welds comprises steps as follows: a circumferential transillumination mode is adopted; a linkage device is utilized; the first time of transillumination is performed with a radiographic testing technology; the transillumination is performed for three times totally. The device and the method have the advantages as follows: guide pipe weld testing can be performed more accurately, more rapidly and more efficiently, and great production benefits can be obtained.
Description
Technical field
The present invention relates to narrow tube circular weld X-ray Testing Technology field, particularly a kind of narrow tube joint circular weld ray detecting apparatus and detection method.
Background technology
Conduit occupies critical role in aeromotor, and for firing lubricating oil, hydraulic pressure, ventilation, logical oxygen, the system such as anti-icing, any conduit breaks down and all may cause engine health accident.Further, the conduit condition of work difference in aeromotor is very large, and what have works at normal temperatures, and what have bears lower pressure, have at high temperature, operate at high voltage.Engine is vibrate very greatly in working order, and conduit will bear certain vibrations stress, therefore requires very strict to conduit weldquality.
National military standard performed by current ray detects is GJB1187A-2001 radioscopy.Selecting that wherein transillumination is arranged proposes special requirement to narrow tube circular weld, and the narrow tube that requirement can not carry out elliptic imaging adopts vertical transmit mode, and exposes once every 120 ° or 60 °.Test Field carries out twice vertically according to company standard at present, or is mutually certain angle transillumination, needs to improve according to the requirement of national military standard.But compared with current twice transillumination, three transilluminations are more strict to the requirement of Angle ambiguity, workload also significantly promotes, and therefore need to carry out designing and producing a set of auxiliary mould, ensure transillumination angle, can complete testing efficiently again simultaneously.
Summary of the invention
The object of the invention is to improve Detection job and detection efficiency, spy provides a kind of narrow tube joint circular weld ray detecting apparatus and detection method.
The invention provides a kind of narrow tube joint circular weld ray detecting apparatus, it is characterized in that: described narrow tube joint circular weld ray detecting apparatus, comprise clamping turning axle, gland, upper supporting cover, interlock fluted disc, pedestal, handle, resilient material, conduit, film, plateholder, index dial;
Wherein: gland is adjacent to turning axle and makes its stable operation, upper supporting cover connects clamping turning axle, pressure holding interlock fluted disc.Interlock fluted disc is connected by gear with clamping turning axle, transmits from the lever operated anglec of rotation, makes 60 to clamp turning axle synchronous rotary.Base supports is overall, stablizes its center of gravity.Handle connects clamping turning axle, for adjusting angle.Resilient material has flexible material, for by extruding, maintains the firm of band detected catheter.Plateholder clamping conduit and film, make film and weld seam fit.
Adopt a detection method for narrow tube joint circular weld ray detecting apparatus according to claim 1, it is characterized in that: index dial display-60 °, 0 °, 60 ° of three transillumination angles.
1) circumferential arrangement is used.Detecting the arrangement used is directed arrangement, adopt circumferential arrangement, when ensureing that beam is vertical with weld seam, transillumination field can be expanded: transillumination 60, avoiding conduit simultaneously and being in transillumination field edge and easily causing image to go out the situation of ring.
2) linkage is used.Use linkage, can ensure more accurate relative to the anglec of rotation of beam, and meet single job and all complete rotation.Use linkage, make all conduits carry out rotation with own axes, avoid the error that manual operations brings by gear driven, angle is accurate, in turn saves transillumination simultaneously and arranges the time used.Below circumferential X-ray production apparatus, make circumferential X-ray production apparatus head concentric with this frock center of circle.Conduit to be detected is arranged on clamping turning axle, by resilient material, it is fastening, weld seam is exposed, keeps all position while welding equal altitudes, 60 conduits can be clamped at every turn.Circumference adjustment handle, makes handle point to index dial-60 ° of positions, and now clamp turning axle and rotated by gear driven interlock fluted disc, interlock fluted disc drives other 59 turning axles to rotate, and all clamping turning axle first time transillumination positions are fixed.In rotary course, on clamping turning axle, two bearings ensure that axle steadily rotates, and the bearing on interlock fluted disc and stick roller bearing ensure that fluted disc steadily rotates.Film and weld seam are fitted, clamps by plateholder.Adjustment X-ray machine X grease head highness, makes beam vertical with weld seam.First time transillumination is carried out according to ray detection technique.Suppose that conduit weld seam double wall thickness is 2mm, the transmitting illumination parameter provided by table 1 carries out transillumination.
After transillumination terminates for the first time, take off the film after transillumination and carry out darkroom disposal.Rotating 6 handles makes handle point to 0 ° of position, and all turning axles rotate 60 °, and meanwhile, conduit weld seam and beam rotate 60 °, and focal length does not occur to appoint change.Carry out second time transillumination, transmitting illumination parameter is constant.In like manner carry out third time transillumination.
Advantage of the present invention:
Narrow tube joint circular weld ray detecting apparatus of the present invention and detection method, circumferential transillumination scheme is disposable detects 60 conduits, adds amount detection, ensures the verticality of beam and weld seam simultaneously, improves image quality; Use linkage both can ensure the weld seam anglec of rotation, save again the time of twice transillumination layout, significantly improve detection efficiency.Adopt this programme more accurately, fast, efficiently can carry out conduit weld seam detection, so immeasurable productivity effect can be brought.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is narrow tube joint circular weld ray detecting apparatus structural representation;
Fig. 2 is pick-up unit inner structure cut-open view;
Fig. 3 is that B-B is to schematic diagram;
Fig. 4 is that C-C is to schematic diagram;
In figure, 1-clamps turning axle, 2-gland, the upper supporting cover of 3-, 4-link fluted disc, 5-pedestal, 6-handle, 7-resilient material, 8-conduit, 9-film, 10-plateholder, 11 index dials.
Embodiment
Embodiment 1
The invention provides a kind of narrow tube joint circular weld ray detecting apparatus, it is characterized in that: described narrow tube joint circular weld ray detecting apparatus, comprise clamping turning axle, gland, upper supporting cover, interlock fluted disc, pedestal, handle, resilient material, conduit, film, plateholder, index dial;
Wherein: gland is adjacent to turning axle and makes its stable operation, upper supporting cover connects clamping turning axle, pressure holding interlock fluted disc.Interlock fluted disc is connected by gear with clamping turning axle, transmits from the lever operated anglec of rotation, makes 60 to clamp turning axle synchronous rotary.Base supports is overall, stablizes its center of gravity.Handle connects clamping turning axle, for adjusting angle.Resilient material has flexible material, for by extruding, maintains the firm of band detected catheter.Plateholder clamping conduit and film, make film and weld seam fit.
Adopt a detection method for narrow tube joint circular weld ray detecting apparatus according to claim 1, it is characterized in that: index dial display-60 °, 0 °, 60 ° of three transillumination angles.
1) circumferential arrangement is used.Detecting the arrangement used is directed arrangement, adopt circumferential arrangement, when ensureing that beam is vertical with weld seam, transillumination field can be expanded: transillumination 60, avoiding conduit simultaneously and being in transillumination field edge and easily causing image to go out the situation of ring.
2) linkage is used.Use linkage, can ensure more accurate relative to the anglec of rotation of beam, and meet single job and all complete rotation.Use linkage, make all conduits carry out rotation with own axes, avoid the error that manual operations brings by gear driven, angle is accurate, in turn saves transillumination simultaneously and arranges the time used.Below circumferential X-ray production apparatus, make circumferential X-ray production apparatus head concentric with this frock center of circle.Conduit to be detected is arranged on clamping turning axle, by resilient material, it is fastening, weld seam is exposed, keeps all position while welding equal altitudes, 60 conduits can be clamped at every turn.Circumference adjustment handle, makes handle point to index dial-60 ° of positions, and now clamp turning axle and rotated by gear driven interlock fluted disc, interlock fluted disc drives other 59 turning axles to rotate, and all clamping turning axle first time transillumination positions are fixed.In rotary course, on clamping turning axle, two bearings ensure that axle steadily rotates, and the bearing on interlock fluted disc and stick roller bearing ensure that fluted disc steadily rotates.Film and weld seam are fitted, clamps by plateholder.Adjustment X-ray machine X grease head highness, makes beam vertical with weld seam.First time transillumination is carried out according to ray detection technique.Suppose that conduit weld seam double wall thickness is 2mm, the transmitting illumination parameter provided by table 1 carries out transillumination.
After transillumination terminates for the first time, take off the film after transillumination and carry out darkroom disposal.Rotating 6 handles makes handle point to 0 ° of position, and all turning axles rotate 60 °, and meanwhile, conduit weld seam and beam rotate 60 °, and focal length does not occur to appoint change.Carry out second time transillumination, transmitting illumination parameter is constant.In like manner carry out third time transillumination.
Table 1 transmitting illumination parameter
Claims (2)
1. a narrow tube joint circular weld ray detecting apparatus, it is characterized in that: described narrow tube joint circular weld ray detecting apparatus, comprise clamping turning axle, gland, upper supporting cover, interlock fluted disc, pedestal, handle, resilient material, conduit, film, plateholder, index dial;
Wherein: gland is adjacent to turning axle and makes its stable operation, upper supporting cover connects clamping turning axle, pressure holding interlock fluted disc; Interlock fluted disc is connected by gear with clamping turning axle, transmits from the lever operated anglec of rotation, makes 60 to clamp turning axle synchronous rotary; Base supports is overall, stablizes its center of gravity; Handle connects clamping turning axle, for adjusting angle; Resilient material has flexible material, for by extruding, maintains the firm of band detected catheter; Plateholder clamping conduit and film, make film and weld seam fit.
2. adopt a detection method for narrow tube joint circular weld ray detecting apparatus according to claim 1, it is characterized in that: index dial display-60 °, 0 °, 60 ° of three transillumination angles;
1) circumferential arrangement is used; Detecting the arrangement used is directed arrangement, adopt circumferential arrangement, when ensureing that beam is vertical with weld seam, transillumination field can be expanded: transillumination 60, avoiding conduit simultaneously and being in transillumination field edge and easily causing image to go out the situation of ring;
2) linkage is used; Use linkage, can ensure more accurate relative to the anglec of rotation of beam, and meet single job and all complete rotation; Use linkage, make all conduits carry out rotation with own axes, avoid the error that manual operations brings by gear driven, angle is accurate, in turn saves transillumination simultaneously and arranges the time used; Below circumferential X-ray production apparatus, make circumferential X-ray production apparatus head concentric with this frock center of circle; Conduit to be detected is arranged on clamping turning axle, by resilient material, it is fastening, weld seam is exposed, keeps all position while welding equal altitudes, 60 conduits can be clamped at every turn; Circumference adjustment handle, makes handle point to index dial-60 ° of positions, and now clamp turning axle and rotated by gear driven interlock fluted disc, interlock fluted disc drives other 59 turning axles to rotate, and all clamping turning axle first time transillumination positions are fixed; In rotary course, on clamping turning axle, two bearings ensure that axle steadily rotates, and the bearing on interlock fluted disc and stick roller bearing ensure that fluted disc steadily rotates; Film and weld seam are fitted, clamps by plateholder; Adjustment X-ray machine X grease head highness, makes beam vertical with weld seam; First time transillumination is carried out according to ray detection technique;
After transillumination terminates for the first time, take off the film after transillumination and carry out darkroom disposal; Rotating 6 handles makes handle point to 0 ° of position, and all turning axles rotate 60 °, and meanwhile, conduit weld seam and beam rotate 60 °, and focal length does not occur to appoint change; Carry out second time transillumination, transmitting illumination parameter is constant; In like manner carry out third time transillumination.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510827922.4A CN105445297B (en) | 2015-11-24 | 2015-11-24 | A kind of minor diameter pipe fitting circular weld ray detecting apparatus and detection method |
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| CN201510827922.4A CN105445297B (en) | 2015-11-24 | 2015-11-24 | A kind of minor diameter pipe fitting circular weld ray detecting apparatus and detection method |
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| CN105445297A true CN105445297A (en) | 2016-03-30 |
| CN105445297B CN105445297B (en) | 2019-03-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966461A (en) * | 2017-11-20 | 2018-04-27 | 首都航天机械公司 | One kind, which is enjoyed a double blessing, turns round detection head pose compensation mechanism |
| CN108303434A (en) * | 2017-10-18 | 2018-07-20 | 肖永鉴 | A kind of minor diameter pipe industrial radiographic inspection special tooling |
| CN113720911A (en) * | 2021-09-01 | 2021-11-30 | 中国航发沈阳黎明航空发动机有限责任公司 | Positioning tool for detecting weld defects of air inlet casing and judging method |
| CN117368236A (en) * | 2023-12-05 | 2024-01-09 | 星箭中航(成都)机械制造有限公司 | Aviation conduit weld joint detection system |
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| CN101093199A (en) * | 2006-06-23 | 2007-12-26 | 东南大学 | Method for non-destructive testing grouting cavernes in prestressed concrete structure |
| CN102507617A (en) * | 2011-11-23 | 2012-06-20 | 兰州瑞奇戈德测控技术有限公司 | X-ray digital imaging detection device for detecting welding seam of tube row |
| CN103472076A (en) * | 2013-08-30 | 2013-12-25 | 山东科技大学 | Automatic paster robot for weld radiographic inspection |
| JP2014032018A (en) * | 2012-08-01 | 2014-02-20 | Panasonic Corp | Organism chemical analysis system and temperature control using the same |
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| CN101093199A (en) * | 2006-06-23 | 2007-12-26 | 东南大学 | Method for non-destructive testing grouting cavernes in prestressed concrete structure |
| CN102507617A (en) * | 2011-11-23 | 2012-06-20 | 兰州瑞奇戈德测控技术有限公司 | X-ray digital imaging detection device for detecting welding seam of tube row |
| JP2014032018A (en) * | 2012-08-01 | 2014-02-20 | Panasonic Corp | Organism chemical analysis system and temperature control using the same |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303434A (en) * | 2017-10-18 | 2018-07-20 | 肖永鉴 | A kind of minor diameter pipe industrial radiographic inspection special tooling |
| CN107966461A (en) * | 2017-11-20 | 2018-04-27 | 首都航天机械公司 | One kind, which is enjoyed a double blessing, turns round detection head pose compensation mechanism |
| CN107966461B (en) * | 2017-11-20 | 2021-02-09 | 首都航天机械公司 | Automatic compensation mechanism for pose of double-full-rotation detection machine head |
| CN113720911A (en) * | 2021-09-01 | 2021-11-30 | 中国航发沈阳黎明航空发动机有限责任公司 | Positioning tool for detecting weld defects of air inlet casing and judging method |
| CN113720911B (en) * | 2021-09-01 | 2024-02-06 | 中国航发沈阳黎明航空发动机有限责任公司 | Positioning tool and judging method for detecting weld defects of air inlet casing |
| CN117368236A (en) * | 2023-12-05 | 2024-01-09 | 星箭中航(成都)机械制造有限公司 | Aviation conduit weld joint detection system |
| CN117368236B (en) * | 2023-12-05 | 2024-02-20 | 星箭中航(成都)机械制造有限公司 | Aviation conduit weld joint detection system |
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| CN105445297B (en) | 2019-03-15 |
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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |
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