CN102279198A - Sheet bonding method and structure for pipe welding seam ray detection - Google Patents
Sheet bonding method and structure for pipe welding seam ray detection Download PDFInfo
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- CN102279198A CN102279198A CN2011101037955A CN201110103795A CN102279198A CN 102279198 A CN102279198 A CN 102279198A CN 2011101037955 A CN2011101037955 A CN 2011101037955A CN 201110103795 A CN201110103795 A CN 201110103795A CN 102279198 A CN102279198 A CN 102279198A
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Abstract
The invention discloses a sheet bonding method for ray detection and particularly relates to a sheet bonding method for pipe welding seam ray detection. The invention provides a sheet bonding method for pipe welding seam ray detection with accurate segmentation, and the method comprises the following steps: A. manufacturing a segmentation ribbon and marking the segmentation ribbon into n segments by utilizing markers on the segmentation ribbon, wherein the n is the transmission times, the length of each segment is L/n and the L is the external circumference length of a steel pipe to be detected; B. surrounding the manufactured segmentation ribbon around the external circumference of the steel pipe to be detected and arranging the segmentation ribbon beside a welding seam; C. installing a penetrameter and various markers at one side of a pipe wall, tightly attaching a camera bag box on the welding seam and covering a segment to be detected of the segmentation ribbon, the penetrameter and the various markers, thereby enabling the length direction of a film in the camera bag box to be consistent to the loop direction of the welding seam and tightly attaching a back scattering lead plate to the camera bag box. The segments are marked by utilizing the segmentation ribbon and the markers, thus images which are generated by transmission for multiple times are accurately related, thereby improving the efficiency and simultaneously improving the quality and accuracy of the film.
Description
Technical field
The present invention relates to a kind of pasting method of ray detection, especially a kind of pasting method of pipe weld seam ray detection.In addition, the invention still further relates to a kind of paster structure of ray detection, especially a kind of paster structure of pipe weld seam ray detection.
Background technology
In the Non-destructive Testing on Metal radiographic inspection technology, it is a necessary operation that intensifying screen, mark font, penetrameter, film are close on the tube wall, so that ray passes weld seam after sending from the source, on film, produce latent image, at last by operations such as development, photographic fixing, with clear picture show, be convenient to visual inspection.
After having calculated transmitting illumination parameter, before transillumination, the conventional method of paster is: 1, adopt the clock localization method, utilize instruments such as tape measure, the pipe ring fusion length is divided equally according to transmiting time, make marks with marking pen; 2, penetrameter is placed in tube wall one side, guarantees filament outwardly; 3, on film loader, lay all kinds of marks; 4, film is close to the weld seam outside, makes the film length direction consistent with the weld seam hoop; 5,, guarantee that itself and tube wall be close to the fixing film outer rim of magnet piece.
Before pipe fitting detects, need to consider the X-ray machine X performance index simultaneously according to pipe fitting diameter, thickness, weld seam grade, and the requirement of egative film rank, make defects detecting technology, determine number of times and corresponding film quantity that single test specimen needs transillumination.Generally speaking, single pipe test specimen need carry out transillumination more than 2 times at least, could guarantee not omission, and is corresponding with it, need carry out 2 times the paster operation at least.
The existing shortcoming of said method is: when 1, utilizing tape measure to carry out the clock location, because the flexible and ductility of tape measure, so the location is not too convenient on circular weld seam; 2, fixedly during film, consider to reduce the influence of backward scattering with magnet, therefore magnet is fixed on 4 angles of film as far as possible, do like this, can not guarantee being close to of whole film, influence negative quality; 3, by above-mentioned paster step by step, when detecting in enormous quantities or promptly, take time and effort, efficient is lower.
Summary of the invention
Technical matters to be solved by this invention provides the pasting method that the weld seam ray detection is managed in a kind of segmentation accurately.
The present invention solves the pasting method of the pipe weld seam ray detection that its technical matters adopts, and may further comprise the steps:
A, making segmentation band utilize the sign on the segmentation band that the segmentation tape label is the n section, and n is the transmission number of times, and every segment length is L/n, and L is a steel pipe outer circumference to be checked;
B, with the segmentation band made on the excircle that is arranged on steel pipe to be checked, and the segmentation band is arranged on by the weld seam;
C, penetrameter, all kinds of mark are placed in tube wall one side, the camera bag box is close in welded joints and the overlay segments band is to be checked one section, penetrameter and all kinds of mark, make the film length direction in the camera bag box consistent, the backward scattering stereotype is adjacent on the camera bag box with the weld seam hoop.
Further be, in the A step, described segmentation band is made by medical adhesive tape and font, utilizes font as indicating medical adhesive tape to be labeled as the n section; In the B step, when being arranged on the segmentation band on the steel pipe to be checked, the distance of font and weld edge is not less than 5mm.
Further be, in the C step, also comprise marker slip, described marker slip adopts transparent material to make, and penetrameter, all kinds of mark at first are placed on the marker slip, and then are placed in tube wall one side by marker slip.
Further be, marker slip is to be sheared by waste and old film to make, and waste and old film cuts into the size identical with film.
Further be, in the C step, place the overlapping successively combination of marker slip, camera bag box, backward scattering stereotype of penetrameter and all kinds of marks, the one side with marker slip after combination is adjacent to tube wall one side.
Further be that in the C step, the subassembly of marker slip, camera bag box, backward scattering stereotype is adjacent on steel pipe to be checked by big cushion rubber.
Another problem that will solve of the present invention provides the paster structure that the weld seam ray detection is managed in a kind of segmentation accurately.
The present invention also provides a kind of paster structure of pipe weld seam ray detection, comprise steel pipe to be checked, be adjacent to camera bag box, be arranged on penetrameter and all kinds of mark between camera bag box and the steel pipe to be checked, be fitted in the backward scattering stereotype on the camera bag box in the commissure of steel pipe to be checked, also comprise the segmentation band, sign on the described segmentation band is the n section with the segmentation tape label, n is the transmission number of times, every segment length is L/n, L is a steel pipe outer circumference to be checked, described segmentation band on the excircle that is arranged on steel pipe to be checked and to be checked one section of described segmentation band covered by the camera bag box.
Further be, the segmentation band is made by medical adhesive tape and font, utilizes font as indicating medical adhesive tape to be labeled as the n section, and the distance of described font and weld edge is not less than 5mm.
Further be, also comprise marker slip, described marker slip adopts transparent material to make, and penetrameter, all kinds of mark at first are placed on the marker slip, and then are arranged between camera bag box and the steel pipe to be checked by marker slip.
Further be, also comprise big cushion rubber, described marker slip, camera bag box and backward scattering stereotype all are adjacent on steel pipe to be checked by big cushion rubber.
The invention has the beneficial effects as follows: the outer circumference according to pipe fitting to be measured comes segmentation, and utilize the segmentation band and indicate the mark segmentation, both needn't on pipe fitting to be measured, leave marks, also more accurately segmentation fast, therefore the image that produces when transillumination repeatedly is more accurately related, reduce operation, raise the efficiency, also improved the quality and the precision of egative film simultaneously.The segmentation band can adopt medical adhesive tape and font to make, and when ray detection, font can directly project on the film, thereby need not to be provided with on film loader mark.Penetrameter and all kinds of mark can be unified to be placed on the marker slip, and be in operation so just convenient, and the relative position of penetrameter and all kinds of marks can not found to change in operation yet.Marker slip can adopt waste and old film production, to realize salvaging, saves cost.
Description of drawings
Fig. 1 adopts synoptic diagram of the present invention;
Fig. 2 is the combination synoptic diagram of marker slip, camera bag box and backward scattering stereotype;
Parts, position and numbering among the figure: steel pipe 1 to be checked, weld seam 2, camera bag box 3, penetrameter 4, all kinds of mark 5, backward scattering stereotype 6, segmentation band 7, sign 8, marker slip 9, big cushion rubber 10.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, the present invention includes following steps: A, making segmentation band 7, utilize the sign 8 on the segmentation band 7 that segmentation band 7 is labeled as the n section, n is the transmission number of times, and every segment length is L/n, and L is steel pipe 1 outer circumference to be checked; B, with the segmentation band 7 made around on the excircle that is arranged on steel pipe 1 to be checked, and segmentation band 7 to be arranged on weld seam 2 other; C, penetrameter 4, all kinds of mark 5 are placed in tube wall one side, be close to camera bag box 3 on the weld seam 2 and overlay segments band 7 is to be checked one section, penetrameter 4 and all kinds of mark 5, make the film length direction in the camera bag box 3 consistent, backward scattering stereotype 6 is adjacent on camera bag box 3 with weld seam 2 hoops.A transmission of each section correspondence of segmentation band 7, the position of segmentation band 7 when each transmission can not change, therefore the hop count of its steel pipe to be checked 1 that marks off is a stabilized uniform, whenever carry out a transmission and be about to one section new segmentation band 7 of new camera bag box 3 coverings, this has just been avoided the error that direct segmentation forms on steel pipe 1 to be checked, thereby effectively raises the precision of transmission.Sign 8 on the segmentation band 7 can also project to when transmission on the film in the camera bag box 3, thereby film has also been carried out mark.Steel pipe 1 to be checked needs transmission repeatedly, it is the hop count of segmentation band 7,2 sections of the weld seams that corresponding segmentation band 7 indicated are selected in each transmission, it is one section weld seam 2 that segmentation band 7 one section correspondence to be checked will detect, when transmission repeatedly, only need to repeat the C step, can finish the paster operation, be repeated to all weld seam 2 hop counts for again that camera bag box 3 corresponding segments bands 7 are to be checked one section all by transmission.
Concrete, in the A step, described segmentation band 7 is made by medical adhesive tape and font, utilizes font as sign 8 medical adhesive tape to be labeled as the n section; In the B step, when segmentation band 7 being arranged on the steel pipe 1 to be checked, the distance at font and weld seam 2 edges is not less than 5mm.Font can well be projected on the film as indicating 8, and font can indicate corresponding arabic numeral, with this corresponding corresponding hop count.Medical adhesive tape or other adhesive tape all can use makes segmentation band 7, not only with low cost, and very convenient on being set to steel pipe 1 to be checked the time.
For the ease of laying penetrameter 4 and all kinds of mark 5, in the C step, also comprise marker slip 9, described marker slip 9 adopts transparent material to make, and penetrameter 4, all kinds of mark 5 at first are placed on the marker slip 9, and then are placed in tube wall one side by marker slip 9.Penetrameter 4 and all kinds of mark 5 can stick on the marker slip 9, so the relative position of penetrameter 4 and all kinds of mark 5 is changeless on the marker slip 9, just can not change by relative position because of collision in the time of like this on being placed to steel pipe 1 to be checked.
Concrete, marker slip 9 is to be sheared by waste and old film to make, waste and old film cuts into the size identical with film.Marker slip 9 adopts this transparent material of waste and old film to make, and waste and old film can be utilized in transmission experiment once more, has both made things convenient for operation, also can not increase extra cost.Because marker slip 9 can cut into the size identical with film, therefore can overlap fully with camera bag box 3 at marker slip 9, the penetrameter 4 on this marker slip that just makes 9 better positions with respect to film with all kinds of marks 5.
For the ease of the location, as shown in Figure 2, in the C step, place the overlapping successively combination of marker slip 9, camera bag box 3, backward scattering stereotype 6 of penetrameter 4 and all kinds of mark 5, the one side with marker slip 9 after combination is adjacent to tube wall one side.By said structure as can be known, marker slip 9, camera bag box 3, backward scattering stereotype 6 are the sheet platy structure, therefore can at first make up and be overlapped into an integral body, are placed on the steel pipe 1 to be checked again.So just can pre-aligned marker slip 9, the relative position of camera bag box 3, backward scattering stereotype 6, made things convenient for the location, improved bearing accuracy.
Concrete, in the C step, the subassembly of marker slip 9, camera bag box 3, backward scattering stereotype 6 is adjacent on steel pipe 1 to be checked by big cushion rubber 10.Because big cushion rubber 10 itself possesses elasticity, therefore can be set on the subassembly of marker slip 9, camera bag box 3, backward scattering stereotype 6, annular acts on the subassembly uniformly, therefore subassembly can better be fitted in the outer wall of steel pipe 1 to be checked, and big cushion rubber 10 can not produce backward scattering in transmission process, has so just improved the image quality of film in the camera bag box 3 greatly.
As shown in Figure 1, structure provided by the present invention comprises steel pipe 1 to be checked, be adjacent to camera bag box 3 at weld seam 2 places of steel pipe 1 to be checked, be arranged on penetrameter 4 between camera bag box 3 and the steel pipe to be checked 1 with all kinds of marks 5, be fitted in the backward scattering stereotype 6 on the camera bag box 3, also comprise segmentation band 7, sign 8 on the described segmentation band 7 is labeled as the n section with segmentation band 7, n is the transmission number of times, every segment length is L/n, L is steel pipe 1 outer circumference to be checked, described segmentation band 7 around on the excircle that is arranged on steel pipe 1 to be checked and to be checked one section of described segmentation band 7 covered by camera bag box 3.Said mechanism is the transmission hop count by segmentation band 7 mark steel pipe 1 to be checked at first, it is convenient accurately with respect to indicate segmentation at steel pipe 1 to be checked directly to carry out segmentation on segmentation band 7, this just makes that follow-up transmission imaging is more accurate, and particularly the binding analysis of imaging several times is more accurate.
In order to save cost and convenient the making, segmentation band 7 is made by medical adhesive tape and font, utilizes font as sign 8 medical adhesive tape to be labeled as the n section, and the distance at described font and weld seam 2 edges is not less than 5mm.Medical adhesive tape and font are with low cost, and can directly adhere on the steel pipe 1 to be checked, and be easy to operate.Font can also project on the film in the camera bag box 3 as sign, thus convenient follow-up resolution film.
For the relative position that guarantees penetrameter 4 and all kinds of mark 5 is stablized, as shown in Figure 2, also comprise marker slip 9, described marker slip 9 adopts transparent material to make, penetrameter 4, all kinds of mark 5 at first are placed on the marker slip 9, and then are arranged between camera bag box 3 and the steel pipe to be checked 1 by marker slip 9.Marker slip 9 can cause error with regard to variation relatively can not take place in the time of like this on being placed to steel pipe 1 to be checked so that the relative position of penetrameter 4 and all kinds of mark 5 immobilizes as immobilized substrate.
In order uniformly marker slip 9, camera bag box 3 and backward scattering stereotype 6 to be fitted on the steel pipe 1 to be checked, as shown in Figure 1, also comprise big cushion rubber 10, described marker slip 9, camera bag box 3 and backward scattering stereotype 6 all are adjacent on steel pipe 1 to be checked by big cushion rubber 10.Big cushion rubber 10 can act on the subassembly of marker slip 9, camera bag box 3 and backward scattering stereotype 6 by hoop uniformly, thereby better subassembly is fitted on the steel pipe 1 to be checked, like this in transmission process in the camera bag box 3 imaging of film just more accurate, the relative position of each projection is also more accurate.
Embodiment
The pipe open joint that with the diameter is 159mm is an example, carries out transillumination 4 times, and then each transmission effective length is about 125mm.Adopt following steps to carry out paster:
A, making segmentation band 7 place medical adhesive tape on the platform, have viscose glue one to face up, and the font of numeral 1,2,3,4 difference font up, are bonded on the adhesive plaster every 125mm, notice that font need expose to adhesive plaster.After font glues, from No. 4 font one ends with adhesive plaster to the doubling of No. 1 font direction, and make the top adhesive plaster be longer than the bottom adhesive plaster, just make the mucilage glue surface of top adhesive plaster expose one section down, so that carry out adhesion when being trapped among segmentation band 7 on the steel pipe 1 to be checked, so just made a segmentation band 7.
B, segmentation band 7 is fixed to transillumination weld seam 2 one sides, notes that the font that should guarantee on the segmentation band 7 and the distance at weld seam 2 edges are not less than 5mm.
C, make marker slip 9 according to the length of transillumination film.Specific practice: select a waste and old film to shear, make it identical with the transillumination film size, respectively penetrameter 4, all kinds of mark 5 etc. is fixed in the above with adhesive tape, the position that fixing position should be located during according to actual transillumination is determined; Marker slip 7 and camera bag box 3, backward scattering stereotype 6 are made up, the relative position of this combination is: in the face of weld seam 2 positions, marker slip 7 is ground floor, camera bag box 3 second layers, backward scattering stereotype 6 is the 3rd layer, again subassembly is fitted to first section weld seam 2 place that font indicates, and the segmentation band 7 of this section is covered; Several linking to each other of the wide cushion rubber that utilizes the binding welding rod to use is made into a big cushion rubber 10 that is slightly less than caliber, is enclosed within the combination of steel pipe 1 to be checked and marker slip 7 and camera bag box 3, backward scattering stereotype 6.
Just can carry out first section transmission according to above-mentioned paster this moment, after transmission finishes, takes off the combination of big cushion rubber 10, marker slip 7 and camera bag box 3, backward scattering stereotype 6.Repeat the C step again, marker slip 7 and camera bag box 3, backward scattering stereotype 6 subassemblies are fitted to second section weld seam 2 place that font indicates get final product.In like manner, last two sections weld seams 2 adopt identical method can finish transmission.
Claims (10)
1. manage the pasting method of weld seam ray detection, it is characterized in that: may further comprise the steps:
A, making segmentation band (7) utilize the sign (8) on the segmentation band (7) that segmentation band (7) is labeled as the n section, and n is the transmission number of times, and every segment length is L/n, and L is steel pipe to be checked (a 1) outer circumference;
B, with the segmentation band (7) made around on the excircle that is arranged on steel pipe to be checked (1), and segmentation band (7) to be arranged on weld seam (2) other;
C, penetrameter (4), all kinds of mark (5) are placed in tube wall one side, with a section of being close to that weld seam (2) is gone up and overlay segments band (7) is to be checked of camera bag box (3), penetrameter (4) and all kinds of mark (5), make the film length direction in the camera bag box (3) consistent, backward scattering stereotype (6) is adjacent on camera bag box (3) with weld seam (2) hoop.
2. the pasting method of pipe weld seam ray detection as claimed in claim 1 is characterized in that: in the A step, described segmentation band (7) is made by medical adhesive tape and font, utilizes font as indicating (8) medical adhesive tape to be labeled as the n section; In the B step, in the time of on segmentation band (7) being arranged on steel pipe to be checked (1), the distance at font and weld seam (2) edge is not less than 5mm.
3. the pasting method of pipe weld seam ray detection as claimed in claim 1 or 2, it is characterized in that: in the C step, also comprise marker slip (9), described marker slip (9) adopts transparent material to make, penetrameter (4), all kinds of mark (5) at first are placed on the marker slip (9), and then are placed in tube wall one side by marker slip (9).
4. the pasting method of pipe weld seam ray detection as claimed in claim 3 is characterized in that: described marker slip (9) is to be sheared by waste and old film to make, and waste and old film cuts into the size identical with film.
5. the pasting method of pipe weld seam ray detection as claimed in claim 3, it is characterized in that: in the C step, place marker slip (9), camera bag box (3), the overlapping successively combination of backward scattering stereotype (6) of penetrameter (4) and all kinds of mark (5), the one side with marker slip (9) after combination is adjacent to tube wall one side.
6. the pasting method of pipe weld seam ray detection as claimed in claim 5 is characterized in that: in the C step, the subassembly of marker slip (9), camera bag box (3), backward scattering stereotype (6) is adjacent on steel pipe to be checked (1) by big cushion rubber (10).
7. manage the paster structure of weld seam ray detection, comprise steel pipe to be checked (1), be adjacent to the camera bag box of locating at the weld seam (2) of steel pipe to be checked (1) (3), be arranged on penetrameter (4) and all kinds of marks (5) between camera bag box (3) and the steel pipe to be checked (1), be fitted in the backward scattering stereotype (6) on the camera bag box (3), it is characterized in that: also comprise segmentation band (7), sign (8) on the described segmentation band (7) is labeled as the n section with segmentation band (7), n is the transmission number of times, every segment length is L/n, L is steel pipe to be checked (a 1) outer circumference, described segmentation band (7) around on the excircle that is arranged on steel pipe to be checked (1) and to be checked one section of described segmentation band (7) covered by camera bag box (3).
8. the paster structure of pipe weld seam ray detection as claimed in claim 7, it is characterized in that: described segmentation band (7) is made by medical adhesive tape and font, utilize font as indicating (8) medical adhesive tape to be labeled as the n section, the distance at described font and weld seam (2) edge is not less than 5mm.
9. as the paster structure of claim 7 or 8 described pipe weld seam ray detection, it is characterized in that: also comprise marker slip (9), described marker slip (9) adopts transparent material to make, penetrameter (4), all kinds of mark (5) at first are placed on the marker slip (9), and then are arranged between camera bag box (3) and the steel pipe to be checked (1) by marker slip (9).
10. the paster structure of pipe weld seam ray detection as claimed in claim 9 is characterized in that: also comprise big cushion rubber (10), described marker slip (9), camera bag box (3) and backward scattering stereotype (6) all are adjacent on steel pipe to be checked (1) by big cushion rubber (10).
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| CN2011101037955A CN102279198A (en) | 2011-04-25 | 2011-04-25 | Sheet bonding method and structure for pipe welding seam ray detection |
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| CN2011101037955A CN102279198A (en) | 2011-04-25 | 2011-04-25 | Sheet bonding method and structure for pipe welding seam ray detection |
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| CN102759537A (en) * | 2012-07-17 | 2012-10-31 | 中广核检测技术有限公司 | Radiographic testing method for welding beams under radioactive environment of nuclear power station |
| CN104330424A (en) * | 2014-10-24 | 2015-02-04 | 江苏法尔胜材料分析测试有限公司 | Determination method of trans-illumination section for TKY node fillet weld nondestructive testing |
| CN104569004A (en) * | 2015-01-07 | 2015-04-29 | 中国神华能源股份有限公司 | Flaw detection method for water wall tube |
| CN104820337A (en) * | 2015-04-29 | 2015-08-05 | 中国能源建设集团安徽电力建设第二工程有限公司 | Camera bag used for distinguishing film exposure and distinguishing method thereof |
| CN105784729A (en) * | 2016-03-03 | 2016-07-20 | 贵州航天乌江机电设备有限责任公司 | X-ray detection method and device for small-diameter drum longitudinal welds |
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| CN108414545A (en) * | 2018-02-27 | 2018-08-17 | 岭东核电有限公司 | A kind of ray detection method of million kilowatt nuclear power station BOSS weld seams |
| CN108827864A (en) * | 2018-07-10 | 2018-11-16 | 中国石油集团川庆钻探工程有限公司 | Natural gas station ground industrial pipeline internal corrosion characterization processes |
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| CN102759537A (en) * | 2012-07-17 | 2012-10-31 | 中广核检测技术有限公司 | Radiographic testing method for welding beams under radioactive environment of nuclear power station |
| CN104330424A (en) * | 2014-10-24 | 2015-02-04 | 江苏法尔胜材料分析测试有限公司 | Determination method of trans-illumination section for TKY node fillet weld nondestructive testing |
| CN104569004A (en) * | 2015-01-07 | 2015-04-29 | 中国神华能源股份有限公司 | Flaw detection method for water wall tube |
| CN104569004B (en) * | 2015-01-07 | 2018-02-23 | 中国神华能源股份有限公司 | A kind of method of detection of water screen tube |
| CN104820337B (en) * | 2015-04-29 | 2017-10-03 | 中国能源建设集团安徽电力建设第二工程有限公司 | It is a kind of to be used to distinguish camera bag and its differentiating method that whether film exposes |
| CN104820337A (en) * | 2015-04-29 | 2015-08-05 | 中国能源建设集团安徽电力建设第二工程有限公司 | Camera bag used for distinguishing film exposure and distinguishing method thereof |
| CN106198574A (en) * | 2015-05-07 | 2016-12-07 | 哈尔滨飞机工业集团有限责任公司 | A kind of lead chi confirms the method for egative film position |
| CN105784729B (en) * | 2016-03-03 | 2018-10-12 | 贵州航天乌江机电设备有限责任公司 | A kind of detection method of X-ray and device of cylinders with small diameter longitudinal seam |
| CN105784729A (en) * | 2016-03-03 | 2016-07-20 | 贵州航天乌江机电设备有限责任公司 | X-ray detection method and device for small-diameter drum longitudinal welds |
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