CN104280459A - Ultrasonic wave phased array testing method for internal defect at bent axle R - Google Patents
Ultrasonic wave phased array testing method for internal defect at bent axle R Download PDFInfo
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- CN104280459A CN104280459A CN201410603554.0A CN201410603554A CN104280459A CN 104280459 A CN104280459 A CN 104280459A CN 201410603554 A CN201410603554 A CN 201410603554A CN 104280459 A CN104280459 A CN 104280459A
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Abstract
The invention discloses an ultrasonic wave phased array testing method for an internal defect at a bent axle R. On the basis of a conventional bent axle nondestructive testing process, the phased array testing method of a one-dimensional linear array probe with automatic deflection and focusing functions is applied to the detection of the bent axle, wherein a proper wedge block is additionally arranged on the one-dimensional linear array probe. The ultrasonic wave phased array testing method has the beneficial effects that the defect of the detection of a conventional process is solved, the internal defects at a shaft neck and an R corner by adopting one probe, the detection reliability and the detection efficiency are maximally improved; the defects of cracks, inclusion, pores and the like with sizes of above 1mm inside the shaft neck and at the R corner can be detected, and the internal defect of an arc at the bent axle R corner can be conveniently and effectively detected.
Description
Technical field
The present invention relates to a kind of ultrasonic phased array detection method, be specifically related to a kind of ultrasonic phased array detection method for bent axle R place inherent vice.
Background technology
Bent axle is the main motion parts of engine, bears complicated alternate load and impact, is easy to produce fatigue crack.
The Non-Destructive Testing technique of traditional bent axle R place inherent vice is that conventional Ultrasound transverse wave double-bevel detector detects.In actual production process, find that defects of crank can not all detect by traditional detection method, such as perpendicular to the inside platelet defect of detection faces (or angled with detection faces), specific position defect (referring to R circular arc inherent vice) etc., conveniently supersonic detection method needs to change multiple detection probe, and due to axle journal comparatively short-range missile cause and cannot place probe, be therefore easy to produce undetected and erroneous judgement.These undetected defects can bring very large impact and hidden danger to the quality of bent axle and follow-up work.
Ultrasonic phased array technology has the developing history of nearly 20 years, and the initial stage is mainly used in medical field, in medical ultrasound image.The complicacy of system, the complicacy of wave propagation and the reason such as cost is high in solid, make its application in industrial nondestructive testing be restricted.In recent years, ultrasonic phased array technology more and more attracts the attention of people with its acoustic beam deflection flexibly and focusing performance.Due to the integrated application of multiple high-end new technology in ultrasonic phased array imaging field such as piezo-electricity composite material, the control of nanosecond pulse signal, Data Management Analysis, software engineering and computer simulations, make ultrasonic phase array detection technique be able to fast development, be applied to industrial nondestructive testing field gradually.Ultrasonic phase array detection system is the scanning direction and the depth of focus that are controlled acoustic beam by electronic technology, same probe can be realized to detect the Detection task of different wall, unlike material, difformity workpiece, overcome the weak point that conventional Multi probe automatic ultrasonic detection system adjustment difficulty is large and probe accommodation is narrow.Ultrasonic phased array has many advantages: 1, can detect inaccessible position; 2, detection speed is faster, and detect dirigibility stronger, defect location is accurate, and detection sensitivity is high; 3, testing result is directly perceived, can realize real time imagery display; 4, the detection to complex structural member and blind area defective locations can be realized; 6, by local wafer unit combination to sound field indicators, can high-velocity scanning be realized, high speed is carried out to test specimen, comprehensive and multi-orientation detection.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides the phased array detection method at bent axle R place, on the basis of bent axle Non-Destructive Testing traditional handicraft, the phased array detection method with the one dimensional linear array probe of deflection and focusing being automatically added with suitable voussoir is applied on tractor crankshaft.
Technical scheme of the present invention is: the ultrasonic phased array detection method of bent axle R place inherent vice, is characterized in that: the phased array array probe of use has electronic scanning, just can carry out effective scanning to the R place of bent axle without the need to movable; Its ultrasonic phase array detects and comprises the following steps:
(1) requirement making it to reach relevant criterion is processed to bent axle surface;
(2) select suitable phased array probe and voussoir, voussoir makes it consistent with the curvature of crankshaft journal;
(3) according to the detection position of the Selecting parameter array probe of bent axle and the detection angles of array probe;
(4) ultrasonic phase array probe is debugged and calibrated;
(5) by ultrasonic phased array probe, scanning is carried out to R place;
(6) judgement of bent axle defect to be checked, with reference to corresponding standard.
Further, describedly to process crankshaft journal surface, the value of the roughness Ra on described bent axle surface requires to be not more than 6.3 μm.
Further, described debugging, its process comprises the velocity of sound and balance check, probe delay inspection, ACG calibration (angle gain calibration) and TCG calibrate (temporal gain calibration).
Further, described scanning, described scanning, its mode be array probe sector scan and without the need to movable only need along axle journal circumference mechanical scanning.
Further, described scanning, its couplant used is machine oil or chemical paste.
Further, described scanning, its speed maintains V≤150mm/s.
The invention has the beneficial effects as follows:
(1) solve the weak point that traditional handicraft detects, effectively can detect bent axle R place inherent vice, and the 2D image of defect can be obtained, make testing result more comprehensively, reliably; Only adopt a kind of probe can detect the inherent vice at axle journal and R angle place, improve detecting reliability and detection efficiency to greatest extent;
(2) solve quality problems to production and more comprehensive and reliable Non-destructive Testing Data is provided;
(3) avoid the deficiency because of Non-Destructive Testing in early stage technique, the cost caused waste and the harmful effect used, by powder injection molding at detection-phase;
(4) simple to operate, convenience and high-efficiency, practical;
(5) this method can detect inner and R angle place more than the equivalent size 1mm of axle journal crackle, be mingled with, the defect such as pore, easily and effectively can detect the inherent vice of bent axle R angle circular arc.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that ultrasonic phase array of the present invention detects bent axle local.
Wherein: 1 is phased array probe, 2 is defects to be checked, and 3 is bent axles.
Embodiment
Be described in further detail embodiments of the invention below, but the present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar change thereof, all should list protection scope of the present invention in.
Embodiment: as shown in Figure 1, the ultrasonic phased array detection method of bent axle R place inherent vice, comprises the following steps:
(1) journal surface of bent axle 3 is cleaned out, and surfaceness maintains Ra≤6.3 μm;
(2) probe and voussoir is selected, in production practices, corresponding voussoir is selected according to the bent axle of different size, ensure probe and being coupled between crankshaft journal, because detection faces is curved surface, for ensureing that coupling is good, the probe that chip area is less should be selected, select the one dimensional linear array row probe of 8 or 16 array elements to be advisable, and select suitable voussoir;
(3) debug probe, the process of debugging comprises the velocity of sound and zero point, delay, sensitivity calibration, and ACG calibrates (angle gain compensation), and TCG calibrates (temporal gain calibration);
(4) according to the specification of bent axle select scanning angle (need to avoid oilhole, and can scanning to whole R place);
(5) defect to be checked 2 of being popped one's head on 1 pair of curved surface 3 by ultrasonic phase array carries out shear wave sector scan; Scanning position is positioned at rod journal outside surface; The mode of described scanning is run-in index scanning (only need make circumferential mechanical scanning along axle journal); The couplant that scanning uses is machine oil; The speed of described scanning maintains V≤150mm/s.
(6) judgement of defects of crank judges, general reference GB/T11345 carries out.
Claims (6)
1. the ultrasonic phased array detection method of bent axle R place inherent vice, will be added with the phased array probe of voussoir on bent axle, it is characterized in that method step is as follows:
(1) bent axle surface is processed;
(2) select phased array probe and voussoir, voussoir makes it consistent with the curvature of crankshaft journal;
(3) according to the detection position of the Selecting parameter array probe of bent axle and the detection angles of array probe;
(4) ultrasonic phased array probe debugged and calibrate;
(5) scanning is carried out by ultrasonic phased array probe;
(6) judgement of defect to be checked.
2. the ultrasonic phased array detection method of bent axle R place according to claim 1 inherent vice, is characterized in that: describedly process crankshaft journal surface, and the value of the roughness Ra on described bent axle surface requires to be not more than 6.3 μm.
3. the ultrasonic phased array detection method of bent axle R place according to claim 1 inherent vice, is characterized in that: described debugging, and its process comprises the velocity of sound and balance check, probe delay inspection, ACG calibration and TCG calibration.
4. the ultrasonic phased array detection method of bent axle R place according to claim 1 inherent vice, is characterized in that: described scanning, its mode be array probe sector scan and without the need to movable only need along axle journal circumference mechanical scanning.
5. the ultrasonic phased array detection method of bent axle R place according to claim 1 inherent vice, is characterized in that: described scanning, and its couplant used is machine oil or chemical paste.
6. the ultrasonic phased array detection method of bent axle R place according to claim 1 inherent vice, it is characterized in that: described scanning, its speed maintains V≤150mm/s.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410603554.0A CN104280459A (en) | 2014-11-03 | 2014-11-03 | Ultrasonic wave phased array testing method for internal defect at bent axle R |
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| CN201410603554.0A CN104280459A (en) | 2014-11-03 | 2014-11-03 | Ultrasonic wave phased array testing method for internal defect at bent axle R |
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| CN105445374A (en) * | 2015-12-30 | 2016-03-30 | 中核核电运行管理有限公司 | Ultrasonic phased array detection method for fir type blade roots of nuclear main turbine |
| CN106124638A (en) * | 2016-06-15 | 2016-11-16 | 中国航空工业集团公司北京航空材料研究院 | The R corner structure ultrasonic phase array detection acoustic field measuring method of curved surface linear array probe |
| CN106501377A (en) * | 2016-09-12 | 2017-03-15 | 中国航空工业集团公司北京航空材料研究院 | A kind of method that employing ultrasonic phase array detects R corner structure flaw sizes |
| CN107144633A (en) * | 2016-03-01 | 2017-09-08 | 中国科学院金属研究所 | The defect lossless detection method of " bucket " shape hardware R angles transitional region |
| CN107607620A (en) * | 2017-10-14 | 2018-01-19 | 江苏亚星锚链股份有限公司 | A kind of mooring cable phased-array ultrasonic method of inspection |
| CN107817299A (en) * | 2017-10-13 | 2018-03-20 | 武汉理工大学 | A kind of ring automatic ultrasonic phased array lossless detection method and device |
| CN108152374A (en) * | 2017-11-16 | 2018-06-12 | 辽宁红沿河核电有限公司 | A kind of method that phased array detection is carried out to stainless steel small diameter tube weld seam |
| CN109298074A (en) * | 2018-10-23 | 2019-02-01 | 南京高速齿轮制造有限公司 | By ultrasonic wave to the detection method of the gear teeth of gear in process |
| CN111413406A (en) * | 2020-05-19 | 2020-07-14 | 江苏万力机械股份有限公司 | Defect detection device for crankshaft test and use method thereof |
| CN113311066A (en) * | 2021-03-19 | 2021-08-27 | 西安热工研究院有限公司 | Steam turbine rotor rim reverse T-shaped blade root groove phased array ultrasonic longitudinal wave detection method |
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| CN105445374A (en) * | 2015-12-30 | 2016-03-30 | 中核核电运行管理有限公司 | Ultrasonic phased array detection method for fir type blade roots of nuclear main turbine |
| CN107144633B (en) * | 2016-03-01 | 2020-01-03 | 中国科学院金属研究所 | Nondestructive testing method for defects of R-angle transition area of barrel-shaped metal component |
| CN107144633A (en) * | 2016-03-01 | 2017-09-08 | 中国科学院金属研究所 | The defect lossless detection method of " bucket " shape hardware R angles transitional region |
| CN106124638B (en) * | 2016-06-15 | 2018-10-02 | 中国航空工业集团公司北京航空材料研究院 | The acoustic field measuring method of R corner structure ultrasonic phase arrays detection curved surface linear array probe |
| CN106124638A (en) * | 2016-06-15 | 2016-11-16 | 中国航空工业集团公司北京航空材料研究院 | The R corner structure ultrasonic phase array detection acoustic field measuring method of curved surface linear array probe |
| CN106501377B (en) * | 2016-09-12 | 2019-06-04 | 中国航空工业集团公司北京航空材料研究院 | A method of R corner structure flaw size is detected using ultrasonic phase array |
| CN106501377A (en) * | 2016-09-12 | 2017-03-15 | 中国航空工业集团公司北京航空材料研究院 | A kind of method that employing ultrasonic phase array detects R corner structure flaw sizes |
| CN107817299A (en) * | 2017-10-13 | 2018-03-20 | 武汉理工大学 | A kind of ring automatic ultrasonic phased array lossless detection method and device |
| CN107607620A (en) * | 2017-10-14 | 2018-01-19 | 江苏亚星锚链股份有限公司 | A kind of mooring cable phased-array ultrasonic method of inspection |
| CN107607620B (en) * | 2017-10-14 | 2019-12-06 | 江苏亚星锚链股份有限公司 | mooring chain phased array ultrasonic inspection method |
| CN108152374A (en) * | 2017-11-16 | 2018-06-12 | 辽宁红沿河核电有限公司 | A kind of method that phased array detection is carried out to stainless steel small diameter tube weld seam |
| CN109298074A (en) * | 2018-10-23 | 2019-02-01 | 南京高速齿轮制造有限公司 | By ultrasonic wave to the detection method of the gear teeth of gear in process |
| CN111413406A (en) * | 2020-05-19 | 2020-07-14 | 江苏万力机械股份有限公司 | Defect detection device for crankshaft test and use method thereof |
| CN111413406B (en) * | 2020-05-19 | 2023-04-04 | 江苏万力机械股份有限公司 | Defect detection device for crankshaft test and use method thereof |
| CN113311066A (en) * | 2021-03-19 | 2021-08-27 | 西安热工研究院有限公司 | Steam turbine rotor rim reverse T-shaped blade root groove phased array ultrasonic longitudinal wave detection method |
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Application publication date: 20150114 |