CN104251885A - Adjustment method of position deviation of welded pipe welding line and ultrasonic flaw detection dolly - Google Patents

Adjustment method of position deviation of welded pipe welding line and ultrasonic flaw detection dolly Download PDF

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Publication number
CN104251885A
CN104251885A CN201310261002.1A CN201310261002A CN104251885A CN 104251885 A CN104251885 A CN 104251885A CN 201310261002 A CN201310261002 A CN 201310261002A CN 104251885 A CN104251885 A CN 104251885A
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Prior art keywords
dolly
scale value
value
ultrasonic testing
adjustment
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CN201310261002.1A
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CN104251885B (en
Inventor
柴洪光
李怀礼
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Baoshan Iron and Steel Co Ltd
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Baoshan Iron and Steel Co Ltd
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Abstract

The invention discloses an adjustment method of position deviation of a welded pipe welding line and an ultrasonic flaw detection dolly; the adjustment method comprises the following steps, S1, preparing a detection sample pipe, evenly arranging a horizontal scale value and a vertical scale value on both ends of the detection sample pipe; S2, arranging the detection sample pipe on a rotating roller, and lifting the rotating roller; S3, suspending a line hammer on a probe center of the ultrasonic flaw detection dolly, and marking O point on the line hammer; S4, transversely moving the ultrasonic flaw detection dolly, and reading a first numerical value of the line hammer on the horizontal scale value and a first numerical value of the O point on the vertical scale value; S5, transversely moving the ultrasonic flaw detection dolly, and reading a second numerical value of the line hammer on the horizontal scale value and a second numerical value of the O point on the vertical scale value; and S6, adjusting the position of the rotating roller. By using the adjustment method, deviation adjustment is convenient and high in accuracy.

Description

The method of adjustment of welded tube welding seam and UT (Ultrasonic Testing) dolly position deviation
Technical field
The present invention relates to welded tube welding seam field of quality control, particularly relate to the method for adjustment of a kind of welded tube welding seam and UT (Ultrasonic Testing) dolly position deviation.
Background technology
For ensureing the quality of heavy caliber welded tube product, UOE welded tube finishing line is furnished with complete non-destructive detecting device, weld seam supersonic detection and checkout equipment is provided with after welding sequence, to guarantee that production line can successfully produce qualified Longitudinal SAW Pipe, its reliability is guaranteed.
UOE welded tube finishing line mainly carries out subsequent treatment and processing to welded still pipe, determines that whether welding quality is qualified.UOE welded tube finishing line arranges 3 cover automatic flaw detection units altogether, wherein a set of for the Weld seam quality control after welding, and a set ofly controls for the end product quality after expanding hydraulic pressure, separately has a set of for pipe end layered weighting, to ensure the welding quality of welded tube welding seam.
Welded tube welding seam UT (Ultrasonic Testing) and checkout equipment comprise beam type frame, UT (Ultrasonic Testing) dolly and rotating roller, UT (Ultrasonic Testing) dolly can be arranged on to be formed on beam type frame and with beam type frame and be slidably connected, and UT (Ultrasonic Testing) dolly is provided with and carries out for butt welded seam quality the probe that detects.Welded tube is delivered to flaw detection station by axial transport dolly---in lift rotating roller, welded tube welding seam center line is ± 3mm at the deviation requirement of detection station, rotating rotating roller makes welded tube welding seam be in 12 o ' clock positions upward, UT (Ultrasonic Testing) dolly moves in parallel along welded tube welding seam, probe butt welded seam detects, to determine the welding quality of weld seam.
Welded tube welding seam UT (Ultrasonic Testing) and checkout equipment adopt unique water spray coupling technique, and during actual carrying out flaw detection, welded tube welding seam is in 12 o ' clock positions upward, and UT (Ultrasonic Testing) dolly is along welded tube welding seam translation, and maximum translational speed is 1.0m/s.In Fig. 1, show welded tube 10, it has weld seam 11, as can be seen from the figure, no matter is that longitudinal defect L-L detects, or transverse defect T-T detects, all relevant with the relative position of welded tube welding seam and UT (Ultrasonic Testing) dolly.That is, the probe of flaw detection trolley must keep relative constant with Weld pipe mill axial location, in case leak-stopping inspection, and the position of Weld pipe mill axis is ensured by the center of lift rotating roller.
Along with weld seam supersonic detection and checkout equipment long-play, parts wear and loosening skew can make the stability of equipment not good enough, thus cause the all-round property testing technical indicator of UT (Ultrasonic Testing) and checkout equipment to decline, flaw detection and checkout equipment all-round property testing index decline main cause is caused to be that deviation occurs in Weld pipe mill axis horizontal position, and Weld pipe mill axis horizontal position deviation, on UT (Ultrasonic Testing) dolly, the center probe axis of probe holder and the central axis of rotating roller equipment are misfitted and are caused often, when welded tube welding seam carrying out flaw detection, if Weld pipe mill axis generation deviation, the scanning of Probe Ultrasonic Searching wave sound bundle directly can be caused less than effective surveyed area of weld seam, and cause seam inspection undetected, and there is great product quality accident.
Original detection method of welded tube welding seam axial centerline deviation is, looks for a good welded tube of ovality (length about tens meters), is placed in rotating roller (flaw detection station), and rise rotating roller, welded tube welding seam is in 12 o ' clock positions upward; Flaw detection trolley central point hangs a plumb bob and moves to one end of welded tube, the maximum gauge place of welded tube is laterally placed on a tape measure, read plumb bob in tape measure high scale value, this scale value is compared with welded tube (radius) center, calculates flaw detection trolley center and the rotating roller center deviate in this one end of welded tube; In like manner, flaw detection trolley center and the rotating roller center deviate at the welded tube other end is calculated; Then welded tube is shifted out rotating roller station, by deviate, adjustment operation is carried out to the position of rotating roller, although at this moment have deviate as adjustment foundation, adjusts some blindness, and adjustment data are directly perceived, cause whole detection and adjustment process will repeatedly several times.
This detection method, completely by artificial feel and observation, accuracy of detection has comparatively big error, testing process and adjustment trouble and consumption consuming time is artificial, and this detection method can only detect flaw detection trolley center and the rotating roller center deviate in the horizontal direction on (X to), just cannot detect for the deviate on above-below direction (Z-direction).
In addition, due to the reason such as welded tube is oversize and some station rotary roller spacing is too short, cause the rotating roller centre deviation of UT (Ultrasonic Testing) dolly and these positions not easily maybe cannot detect, let alone adjustment rotating roller position, bring inconvenience to welded tube welding seam defects detection.
Summary of the invention
For solving the problem, the invention provides the method for adjustment of a kind of welded tube welding seam and UT (Ultrasonic Testing) dolly position deviation, its can facilitate welded tube welding seam and UT (Ultrasonic Testing) dolly position deviation adjustment and accurately.
For achieving the above object, the invention provides the method for adjustment of a kind of welded tube welding seam and UT (Ultrasonic Testing) dolly position deviation, welded tube welding seam quality is detected by the probe of moveable UT (Ultrasonic Testing) dolly, and this method of adjustment comprises the following steps,
S1, preparation test sample tube, all arrange horizontal scale value and vertical scale value at the two ends of test sample tube;
S2, test sample tube is mounted in rotating roller, rises rotating roller;
S3, hang a plumb bob at the center probe of UT (Ultrasonic Testing) dolly, at plumb bob subscript note O point;
S4, transverse shifting UT (Ultrasonic Testing) dolly, make probe one end near test sample tube of UT (Ultrasonic Testing) dolly, rotate rotating roller, make the vertical scale value of test sample tube parallel with plumb bob or overlap, read first numerical value of plumb bob in horizontal scale value and first numerical value of O point in vertical scale value;
S5, transverse shifting UT (Ultrasonic Testing) dolly, make the other end of probe near test sample tube of UT (Ultrasonic Testing) dolly, reads the second value of plumb bob in horizontal scale value and the second value of O point in vertical scale value;
S6, according to first numerical value, second value and plumb bob first numerical value, the second value on vertical scale value of plumb bob in horizontal scale value, adjustment rotating roller position.
The method of adjustment of welded tube welding seam of the present invention and UT (Ultrasonic Testing) dolly position deviation, detect by means of the position deviation of test sample tube to rotating roller, horizontal scale value and vertical scale value are all set at the two ends of test sample tube, transverse shifting UT (Ultrasonic Testing) dolly, make the probe of flaw detection trolley respectively when test sample tube two ends, by means of plumb bob, clearly can observe the deviate of UT (Ultrasonic Testing) dolly and horizontal scale value and vertical scale value, can be quick according to this deviate, the position of accurate adjustment rotating roller, make the weld seam of welded tube can just to the probe of UT (Ultrasonic Testing) dolly.Adopt this method of the present invention, maintainer can adjust the position of rotating roller then and there, and welded tube welding seam and probe are aligned, and improves accuracy of detection and the detection efficiency of welded tube welding seam deviation.
Accompanying drawing explanation
Fig. 1 is welded tube welding seam defect schematic diagram in prior art, and wherein T-T is transverse defect, and L-L is longitudinal defect;
The welded tube welding seam UT (Ultrasonic Testing) that the method for adjustment that Fig. 2 is welded tube welding seam of the present invention and UT (Ultrasonic Testing) dolly position deviation adopts and checkout equipment.
Embodiment
Below, by reference to the accompanying drawings, technical scheme of the present invention and principle of work etc. are further described.
As shown in Figure 2, welded tube welding seam UT (Ultrasonic Testing) and checkout equipment comprise beam type frame 1, beam type frame 1 is provided with chute (not shown), UT (Ultrasonic Testing) dolly 4 is arranged on support 3, the side of support 3 is provided with slide rail 2, UT (Ultrasonic Testing) dolly 4 is formed by this slide rail 2 and beam type frame 1 and is slidably connected, and UT (Ultrasonic Testing) dolly 4 can be moved back and forth.UT (Ultrasonic Testing) dolly 4 is provided with the probe 5 that can be used for Welded Pipe weld defect and carry out detecting, probe 5 can move along with UT (Ultrasonic Testing) dolly 4 and Welded Pipe weld defect detects.Position below UT (Ultrasonic Testing) dolly 4 is provided with the rotating roller 8 that can be used for adjusting test sample tube 6 welded tube position, for test sample tube 6 is placed on the position between two rotating rollers 8 shown in figure, rotating roller 8 drives rotatable by drive unit, to adjust the position of test sample tube 6, the distance between test sample tube 6 and probe 5 is made to meet the detection needs of welded tube welding seam.
The method of adjustment of welded tube welding seam of the present invention and UT (Ultrasonic Testing) dolly 4 position deviation, welded tube welding seam quality is detected by the probe 5 of moveable UT (Ultrasonic Testing) dolly 4, and this method of adjustment comprises the following steps,
S1, preparation test sample tube 6, all arrange horizontal scale value 601 and vertical scale value 602 at the two ends of test sample tube 6.
For convenience of measuring, this horizontal scale value 601 and vertically scale value 602 can be arranged along the diametric(al) of test sample tube 6, the intersection point of horizontal scale value 601 and vertical scale value 602 is made to be positioned at the center of test sample tube 6, can be set at this position of intersecting point zero point, positive scale value and negative scale value are set respectively in the both sides at zero point.
S2, test sample tube 6 is mounted in rotating roller 8, rises rotating roller 8.
Rule of thumb, rotating roller 8 can be risen to position roughly, to meet the detection needs of conventional UT (Ultrasonic Testing) dolly 4 Welded Pipe weld seam, meanwhile, also be convenient to follow-uply carry out accurate adjustment.
S3, probe 5 center suspension one plumb bob 7 at UT (Ultrasonic Testing) dolly 4, plumb bob 7 marks O point.
This plumb bob 7 is suspended on the center of probe 5, to observe the departure degree of probe 5 and test sample tube 6, Row sum-equal matrix of going forward side by side.
S4, transverse shifting UT (Ultrasonic Testing) dolly 4, make the probe 5 of UT (Ultrasonic Testing) dolly 4 near one end of test sample tube 6, rotate rotating roller 8, make the vertical scale value 602 of test sample tube 6 parallel with plumb bob 7 or overlap, read first numerical value of plumb bob 7 in horizontal scale value 601 and first numerical value of O point in vertical scale value 602.
First, mobile UT (Ultrasonic Testing) dolly 4, makes it pop one's head in 5 near one end of test sample tube 6.Then, measuring numerical value for ease of reading, rotating rotating roller 8, make the vertical scale value 602 of test sample tube 6 parallel with plumb bob 7 or overlap.Finally, read first numerical value of plumb bob 7 in horizontal scale value 601, and first numerical value of O point in vertical scale value 602.
S5, transverse shifting UT (Ultrasonic Testing) dolly 4, make the other end of probe 5 near test sample tube 6 of UT (Ultrasonic Testing) dolly 4, read plumb bob 7 horizontal scale value 601 on second value and the second value of O point in vertical scale value 602.
Adopt and the similar mode of S4, measure the deviation of plumb bob 7 and test sample tube 6 other end, read the second value of plumb bob 7 in horizontal scale value 601 and the second value of O point in vertical scale value 602.
S6, according to plumb bob 7 horizontal scale value 601 on first numerical value, the second value of the first numerical value, second value and plumb bob 7 in vertical scale value 602, adjustment rotating roller 8 position.
According to first numerical value of plumb bob 7 in horizontal scale value 601 and second value, adjust the position of rotating roller 8 in the horizontal direction, the vertical scale value 602 of test sample tube 6 is overlapped with plumb bob 7; According to first numerical value of O point in vertical scale value 602 and second value, vertically adjust rotating roller 8 position, make test sample tube 6 two ends height consistent, and when detection welded tube, the probe 5 of UT (Ultrasonic Testing) dolly 4 can detect weld seam.
After above-mentioned adjustment is carried out to test sample tube 6, test sample tube 6 can be taken off from rotating roller 8, welded tube is put in rotating roller 8, and adjust by rotating rotating roller 8 Welded Pipe, make the weld seam of welded tube relative with the probe 5 of UT (Ultrasonic Testing) dolly 4, to pop one's head in, 5 can accurately detect by Welded Pipe weldquality, prevent undetected.
Adopt the method for adjustment of welded tube welding seam of the present invention and UT (Ultrasonic Testing) dolly 4 position deviation, the position of test sample tube 6 pairs of rotating rollers 8 is adopted to regulate the detection needs adapting to welded tube welding seam, and horizontal scale value 601 and vertical scale value 602 are all set at the two ends of test sample tube 6, improve convenience and the accuracy of rotating roller 8 adjustment.Meanwhile, test sample tube 6 of the present invention can need to manufacture, to be applicable to the shorter situation of spacing between rotating roller according to use occasion.

Claims (1)

1. a method of adjustment for welded tube welding seam and UT (Ultrasonic Testing) dolly position deviation, welded tube welding seam quality is detected by the probe of moveable UT (Ultrasonic Testing) dolly, and it is characterized in that, this method of adjustment comprises the following steps,
S1, preparation test sample tube, all arrange horizontal scale value and vertical scale value at the two ends of test sample tube;
S2, test sample tube is mounted in rotating roller, rises rotating roller;
S3, hang a plumb bob at the center probe of UT (Ultrasonic Testing) dolly, at plumb bob subscript note O point;
S4, transverse shifting UT (Ultrasonic Testing) dolly, make probe one end near test sample tube of UT (Ultrasonic Testing) dolly, rotate rotating roller, make the vertical scale value of test sample tube parallel with plumb bob or overlap, read first numerical value of plumb bob in horizontal scale value and first numerical value of O point in vertical scale value;
S5, transverse shifting UT (Ultrasonic Testing) dolly, make the other end of probe near test sample tube of UT (Ultrasonic Testing) dolly, reads the second value of plumb bob in horizontal scale value and the second value of O point in vertical scale value;
S6, according to first numerical value, second value and plumb bob first numerical value, the second value on vertical scale value of plumb bob in horizontal scale value, adjustment rotating roller position.
CN201310261002.1A 2013-06-26 2013-06-26 Welded tube welding seam and the method for adjustment of ultrasonic examination dolly position deviation Active CN104251885B (en)

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CN201310261002.1A CN104251885B (en) 2013-06-26 2013-06-26 Welded tube welding seam and the method for adjustment of ultrasonic examination dolly position deviation

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Application Number Priority Date Filing Date Title
CN201310261002.1A CN104251885B (en) 2013-06-26 2013-06-26 Welded tube welding seam and the method for adjustment of ultrasonic examination dolly position deviation

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CN107478727A (en) * 2017-09-21 2017-12-15 镇江龙逸电子科技有限公司 A kind of ultrasonic examination instrument for measuring metal works
CN111468987A (en) * 2020-03-10 2020-07-31 大族激光科技产业集团股份有限公司 Method and machine tool for adjusting orientation of welding seam surface of pipe

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