CN104155367A - Reference block of ultrasonic flaw detection and application method thereof - Google Patents
Reference block of ultrasonic flaw detection and application method thereof Download PDFInfo
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- CN104155367A CN104155367A CN201410410131.7A CN201410410131A CN104155367A CN 104155367 A CN104155367 A CN 104155367A CN 201410410131 A CN201410410131 A CN 201410410131A CN 104155367 A CN104155367 A CN 104155367A
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Abstract
The invention discloses a reference block of ultrasonic flaw detection and an application method thereof, the reference block comprises a connecting rod pin body with natural cracks and artificial cracks, an inner aperture capable of penetrating along a central axis is arranged at central section of the connecting rod pin body, the artificial cracks are distributed on the periphery of a flaw detection surface, wherein the artificial crack depth is 0.5-5mm, and the included angle of the artificial crack and the central axis of the connecting rod pin body is 0-90 DEG. The reference block of ultrasonic flaw detection and the application method has the advantages of simple structure and convenient making, the reference block employs the connecting rod pin for making, the natural cracks and artificial cracks defect can be combined, cracks defect on each orientation can be effectively detected in the ultrasonic flaw detection, so that purpose for detecting the quality of the connecting rod pin can be reached. In addition, the reference block can be used for detecting the cracks defect of the connecting rod pin by a locomotive wheel, and also can be used for ultrasonic flaw detection of other parts and product cracks.
Description
Technical field
The present invention relates to a kind of reference block, relate in particular to a kind of reference block that is applied to crack ultrasonic carrying out flaw detection and how realize crack ultrasonic carrying out flaw detection with this reference block, belong to test block technical field.
Background technology
In link pin single-piece, independently under finished product state, carry out magnetic powder inspection detection to detecting position, detect the crack defect on link pin surface, the generation that can stop link pin fracture accident.But at assembled state, link pin one is non-single-piece, independence for link pin, the 2nd, does not expose at detection position, non-naked eyes are visible; Now, it is invalid adopting magnetic powder inspection to detect, and the Detection task that for this reason solves link pin crackle is extremely urgent.
In existing UT (Ultrasonic Testing) detects, train wheel detects and can not effectively detect at the crack defect of independent finished products state, assembled state, the state that do not disintegrate, and therefore, brings hidden danger often to the quality of link pin.
Detect for the UT (Ultrasonic Testing) to train wheel link pin crackle, make reference block by common mode, the perpendicular ARTIFICIAL CRACK of processing and horizontal axis direction often, can only detect like this crack defect in same orientation, in the time that crack defect is parallel with horizontal axis direction or tilt, can not detect, cannot effectively detect the crack defect of different azimuth.
Summary of the invention
The object of the invention is to: a kind of reference block and using method thereof that is applied to crack ultrasonic carrying out flaw detection is provided, solve in existing UT (Ultrasonic Testing) detection, directly link pin is detected and has technology hidden danger, and existing reference block is due to its processing ARTIFICIAL CRACK vertical with horizontal axis direction, the technical matters of different azimuth crack defect can not be effectively detected, thereby above-mentioned problems of the prior art can be effectively solved.
The object of the invention is to realize by following technical proposals: a kind of UT (Ultrasonic Testing) detection reference block, comprise the link pin body with aging crack, the middle part of link pin body is provided with the endoporus running through along axis, also comprise the ARTIFICIAL CRACK being arranged on link pin body, described ARTIFICIAL CRACK is distributed on the periphery of detection faces, the degree of depth of ARTIFICIAL CRACK is 0.5-5mm, with link pin body axis angle be 0-90 °.
As a kind of optimal way, the degree of depth of ARTIFICIAL CRACK is 1-3.5mm, with link pin body axis angle be 20 °-45 °.
As further preferred, the degree of depth of ARTIFICIAL CRACK is 1mm, 2mm, 3mm, 3.5mm.
As further preferred, ARTIFICIAL CRACK link pin body axis angle is 20 °, 25 °, 30 °, 35 ° or 45 °.
As a kind of optimal way, described ARTIFICIAL CRACK is distributed in 0 °, 90 °, 180 °, 270 °, 360 ° institute corresponding positions of detection faces periphery.
A kind of UT (Ultrasonic Testing) detection method of applying described reference block, the first step, selects the link pin body with aging crack, and in its flawless circumference orientation, making the degree of depth is 1mm～3.5mm, angle of inclination is the artificial linear discontinuities of 20 °～45 °, i.e. ARTIFICIAL CRACK;
Second step, using the endoporus of link pin body as UT (Ultrasonic Testing) surveyed area, with the basis that edits of detecting the degree of depth, range finding edits; The foundation that the endoporus reflection wave of link pin is demarcated as work system combination property state in UT (Ultrasonic Testing) testing process;
The 3rd step, first, carries out UT (Ultrasonic Testing) scanning to link pin body, in the time carrying out UT (Ultrasonic Testing) detection, taking link pin circular conical surface as flaw detection scanning face;
Secondly, carry out UT (Ultrasonic Testing) detection, ultrasonic probe along the circumferential direction motion track is 360 °, and translational speed is 150mm/s; Motion track is 0 mm～43 mm vertically, and translational speed is 150mm/s; In this carrying out flaw detection process, keep the couple state that ultrasonic probe and scanning face are good;
Then, the oblique incidence ultrasonic probe that adopts range finding to edit is placed in the ARTIFICIAL CRACK place of detecting test block, adjust ultrasonic unit, make its reflection wave up to when the crest location, adjusted to again benchmark wave height, determine UT (Ultrasonic Testing) sensitivity with this, detect the ARTIFICIAL CRACK that detects this place of test block, the now Scanning sensitivity duration of ultrasonic unit is link pin UT (Ultrasonic Testing) detection sensitivity;
In above-mentioned testing process, as note abnormalities, regulate Scanning sensitivity to UT (Ultrasonic Testing) sensitivity to judge;
The 4th step, analyzes the testing result in ultrasonic unit, according to carrying out flaw detection sensitivity, in the scope of demarcating in range finding:
1) in the time that reflection wave is greater than benchmark wave height, link pin is scrapped;
2) in the time that reflection wave is less than benchmark wave height, the special ultrasonic probe of link pin should, along 360 ° of directions of circumference, carry out multiple spy vertically within the scope of 0mm～43mm, as checks flaw detection and all occur this ripple, should notify related personnel to process and detailed record, it is carried out to tracing and monitoring.
As a kind of optimal way, in the first step, the method that described range finding edits is: adopt link pin ultrasonic probe to be placed in reference block detection faces, detect respectively the reflection of ultrasound wave incidence point and involve endoporus reflection wave, adjust ultrasonic unit, press
1~
3:1'sincidence point reflection is involved endoporus reflection wave by ratio finds range and edits.
As a kind of optimal way, in the 3rd step, on UT (Ultrasonic Testing) detection sensitivity basis, improve again 6dB～8dB, as UT (Ultrasonic Testing) Scanning sensitivity.
As a kind of optimal way, in the 3rd step, complete when exposed when the face of cylinder that link pin is 74mm at diameter, can, taking link pin circular conical surface as flaw detection scanning face, can the face of cylinder taking diameter as 74mm be also flaw detection scanning face.
As a kind of optimal way, in the 3rd step, described benchmark wave height refers to 80% of display screen amplitude.
UT (Ultrasonic Testing) detection reference block of the present invention, according to the structure of link pin and assembling form, technology for processing and assembling and crack, the ultrasound examination after the crackle that is detected position by link pin is opened and inspect, magnetic detect and the actual conditions such as crackle dissection and analysis are researched and developed; Reference block is by link pin material object manufacture, and there is a series of different azimuth, the degree of depth of aging crack and making, the ARTIFICIAL CRACK defect of angle in the detected position of link pin reference block, by detecting and disassemble checking to the UT (Ultrasonic Testing) of train wheel link pin crackle is actual, adopt reference block of the present invention to carry out UT (Ultrasonic Testing) detection, the crack defect of quick, the accurate and effective carrying out flaw detection link pin of energy, reach link pin quality testing object, guaranteed reliability and the security of locomotive operation.
Compared with prior art, beneficial effect of the present invention: UT (Ultrasonic Testing) of the present invention detects uses the simple in structure, easy to make of reference block and using method thereof, this reference block adopts link pin material object to make, aging crack and ARTIFICIAL CRACK defect are carried out to combination, the crack defect that can effectively detect each orientation in UT (Ultrasonic Testing) detects, reaches the object to link pin quality testing; In addition, reference block of the present invention not only can be used for train wheel link pin crack defect and detects, and the UT (Ultrasonic Testing) that also can be applied to miscellaneous part, product crackle simultaneously detects.
Brief description of the drawings
Fig. 1 is that UT (Ultrasonic Testing) of the present invention detects the structural representation with reference block;
Fig. 2 is the A-A diagrammatic cross-section of Fig. 1.
In figure: 1-link pin body, 2-detection faces, 3-endoporus, the 4-scanning face of detecting a flaw.
Embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated.
Disclosed all features in this instructions, or step in disclosed all methods or process, except the speciality and/or step of mutual repulsion, all can combine by any way, unless narration especially, all can be replaced by other equivalences or the alternative features with similar object,, unless narration especially, an embodiment in a series of equivalences of each feature or similar characteristics.
As shown in Figure 1, 2, UT (Ultrasonic Testing) detection of the present invention comprises link pin body 1 with reference block, and the middle part of link pin body 1 is provided with the endoporus 3 running through along axis, and as a rule, the diameter on the face of cylinder of link pin is 74mm.Described link pin body 1 is with aging crack and ARTIFICIAL CRACK, wherein, aging crack refers to some crackles that link pin itself just possesses, these crackles can play certain influence to link pin, and for the convenience that detects and can effectively detect these aging crack, crackle on manual simulation's link pin has been made some ARTIFICIAL CRACK again, ARTIFICIAL CRACK is and the defect of a series of different azimuth of aging crack, the degree of depth, angle, in the time that UT (Ultrasonic Testing) of the present invention detects, ARTIFICIAL CRACK and aging crack are all effectively detected simultaneously.As a rule, described ARTIFICIAL CRACK is distributed on the periphery of detection faces 2, and the degree of depth of ARTIFICIAL CRACK is 0.5-5mm, with link pin body 1 axis angle be 0-90 °.In the time carrying out UT (Ultrasonic Testing) detection, taking link pin circular conical surface as flaw detection scanning face 4; Complete when exposed when the face of cylinder that link pin is 74mm at diameter, can, taking link pin circular conical surface as flaw detection scanning face 4, can the face of cylinder taking diameter as 74mm be also flaw detection scanning face 4.Wherein, flaw detection scanning face refers to that ultrasonic probe in use, the place of its probe and link pin Surface Contact, and the actual detection faces that in fact UT (Ultrasonic Testing) detects is positioned at the inside of the corresponding link pin of flaw detection scanning face, to detect the crackle of link pin by this detection faces.In the time that carrying out flaw detection operates, ultrasonic probe along the circumferential direction motion track is 360 °, and translational speed is 150mm/s; Motion track is within the scope of 0 mm～43 mm vertically, and translational speed is 150mm/s, and this value range selected is an effective range value of determining according to the size of ultrasound wave and crackle and the degree of depth.
As preferred technical scheme, when the degree of depth of ARTIFICIAL CRACK is 1-3.5mm, while being 20 °-45 ° with link pin body 1 axis angle, flaw detection sensitivity is the most quick, accurate and effective, and UT (Ultrasonic Testing) detects respond well.
The using method that UT (Ultrasonic Testing) detection is carried out link pin carrying out flaw detection with reference block is as follows:
The first step, using the endoporus of link pin as UT (Ultrasonic Testing) surveyed area, with the basis that edits of detecting the degree of depth, i.e. range finding edits.First, adopting link pin special-purpose ultrasonic probe to be placed in detects in test block detection faces, detect respectively the reflection of ultrasound wave incidence point and involve the endoporus reflection wave that diameter is 10mm, adjust ultrasonic unit, than row, incidence point reflection to be involved to diameter be that the endoporus reflection wave of 10mm is found range and edited by certain.
Simultaneously the endoporus reflection wave of link pin is also as the demarcation foundation of work system combination property state in UT (Ultrasonic Testing) testing process;
Second step, adopts the link pin that has aging crack and ARTIFICIAL CRACK, detects test block as UT (Ultrasonic Testing) detection sensitivity and UT (Ultrasonic Testing) Scanning sensitivity; First this detection test block is carried out to UT (Ultrasonic Testing) detection, draw one-time detection result.
By the ultrasound wave to link pin crackle, magnetic powder inspection detection and crackle dissection, comparative analysis, select a link pin that has aging crack defect, and in its flawless different circumference orientation, having made the degree of depth is 1mm～3.5mm, angle of inclination is the ARTIFICIAL CRACK of 20 °～45 °;
First, the oblique incidence ultrasonic probe that adopts range finding to edit is placed in and detects test block 1mm ARTIFICIAL CRACK place (detecting the method for other artificial crack defects therewith roughly the same), adjust ultrasonic unit, make its reflection wave height maximum, adjusted to again benchmark wave height (as 80% of display screen amplitude), with this definite UT (Ultrasonic Testing) sensitivity, all can detect the ARTIFICIAL CRACK defect and the aging crack defect that detect test block 1mm～3.5mm and other scopes, now ultrasonic unit sensitivity duration is link pin UT (Ultrasonic Testing) detection sensitivity.Detect in operation in actual UT (Ultrasonic Testing), on UT (Ultrasonic Testing) detection sensitivity basis, improve again 6dB～8dB, as UT (Ultrasonic Testing) Scanning sensitivity.As should regulate Scanning sensitivity to carrying out flaw detection sensitivity to judge while noting abnormalities.
With scanning that detected link pin is detected a flaw, in the time carrying out UT (Ultrasonic Testing) detection, taking link pin circular conical surface as flaw detection scanning face; Complete when exposed when the face of cylinder that link pin is 74mm at diameter, can, taking link pin circular conical surface as flaw detection scanning face, can the face of cylinder taking diameter as 74mm be also flaw detection scanning face; In the time that carrying out flaw detection operates, ultrasonic probe along the circumferential direction motion track is 360 °, and translational speed is 150mm/s; Motion track is within the scope of 0 mm～43 mm vertically, and translational speed is 150mm/s; In this carrying out flaw detection process: keep ultrasonic probe and scanning face to keep good couple state.
The 3rd step, analyzes the testing result in ultrasonic unit.
According to carrying out flaw detection sensitivity, link pin UT (Ultrasonic Testing) is detected in operation, while noting abnormalities as the scope of demarcating in range finding, should regulate Scanning sensitivity to carrying out flaw detection sensitivity to judge.
According to carrying out flaw detection sensitivity, in the scope of demarcating in range finding:
1) in the time that reflection wave is greater than benchmark wave height, link pin is scrapped;
2) in the time that reflection wave is less than benchmark wave height, the special ultrasonic probe of link pin should, along 360 ° of directions of circumference, carry out multiple spy vertically within the scope of 0mm～40mm, as checks flaw detection and all occur this ripple, should notify related personnel to process and detailed record, it is carried out to tracing and monitoring.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a UT (Ultrasonic Testing) detection reference block, comprise the link pin body (1) with aging crack, the middle part of link pin body (1) is provided with the endoporus (3) running through along axis, it is characterized in that: also comprise the ARTIFICIAL CRACK being arranged on link pin body (1), described ARTIFICIAL CRACK is distributed on the periphery of detection faces (2), the degree of depth of ARTIFICIAL CRACK is 0.5-5mm, with link pin body (1) axis angle be 0-90 °.
2. UT (Ultrasonic Testing) detection reference block as claimed in claim 1, is characterized in that: the degree of depth of ARTIFICIAL CRACK is 1-3.5mm, with link pin body (1) axis angle be 20 °-45 °.
3. UT (Ultrasonic Testing) detection reference block as claimed in claim 2, is characterized in that: the degree of depth of ARTIFICIAL CRACK is 1mm, 2mm, 3mm, 3.5mm.
4. UT (Ultrasonic Testing) detection reference block as claimed in claim 2, is characterized in that: ARTIFICIAL CRACK link pin body (1) axis angle is 20 °, 25 °, 30 °, 35 ° or 45 °.
5. UT (Ultrasonic Testing) detection reference block as claimed in claim 1, is characterized in that: described ARTIFICIAL CRACK is distributed in 0 °, 90 °, 180 °, 270 °, 360 ° institute corresponding positions of detection faces periphery.
6. a UT (Ultrasonic Testing) detection method of applying reference block as claimed in claim 1, is characterized in that:
The first step, selects the link pin body with aging crack, and in its flawless circumference orientation, making the degree of depth is 1mm～3.5mm, and angle of inclination is the artificial linear discontinuities of 20 °～45 °, i.e. ARTIFICIAL CRACK;
Second step, using the endoporus of link pin body as UT (Ultrasonic Testing) surveyed area, with the basis that edits of detecting the degree of depth, range finding edits; The foundation that the endoporus reflection wave of link pin is demarcated as work system combination property state in UT (Ultrasonic Testing) testing process;
The 3rd step, first, carries out UT (Ultrasonic Testing) scanning to link pin body, in the time carrying out UT (Ultrasonic Testing) detection, taking link pin circular conical surface as flaw detection scanning face;
Secondly, carry out UT (Ultrasonic Testing) detection, ultrasonic probe along the circumferential direction motion track is 360 °, and translational speed is 150mm/s; Motion track is 0 mm～43 mm vertically, and translational speed is 150mm/s; In this carrying out flaw detection process, keep the couple state that ultrasonic probe and scanning face are good;
Then, the oblique incidence ultrasonic probe that adopts range finding to edit is placed in the ARTIFICIAL CRACK place of detecting test block, adjust ultrasonic unit, make its reflection wave up to when the crest location, adjusted to again benchmark wave height, determine UT (Ultrasonic Testing) sensitivity with this, detect the ARTIFICIAL CRACK that detects this place of test block, the now Scanning sensitivity duration of ultrasonic unit is link pin UT (Ultrasonic Testing) detection sensitivity;
In above-mentioned testing process, as note abnormalities, regulate Scanning sensitivity to UT (Ultrasonic Testing) sensitivity to judge;
The 4th step, analyzes the testing result in ultrasonic unit, according to carrying out flaw detection sensitivity, in the scope of demarcating in range finding:
1) in the time that reflection wave is greater than benchmark wave height, link pin is scrapped;
2) in the time that reflection wave is less than benchmark wave height, the special ultrasonic probe of link pin should, along 360 ° of directions of circumference, carry out multiple spy vertically within the scope of 0mm～43mm, as checks flaw detection and all occur this ripple, should notify related personnel to process and detailed record, it is carried out to tracing and monitoring.
7. the UT (Ultrasonic Testing) detection method of reference block as claimed in claim 6, it is characterized in that: in the first step, the method that described range finding edits is: adopt link pin ultrasonic probe to be placed in reference block detection faces, detect respectively the reflection of ultrasound wave incidence point and involve endoporus reflection wave, adjust ultrasonic unit, in the ratio of 1-3:1, incidence point reflection is involved to endoporus reflection wave and find range and edit.
8. the UT (Ultrasonic Testing) detection method of reference block as claimed in claim 7, is characterized in that: in the 3rd step, improve 6dB～8dB, as UT (Ultrasonic Testing) Scanning sensitivity on UT (Ultrasonic Testing) detection sensitivity basis again.
9. the UT (Ultrasonic Testing) detection method of reference block as claimed in claim 8, it is characterized in that: in the 3rd step, complete when exposed when the face of cylinder that link pin is 74mm at diameter, can, taking link pin circular conical surface as flaw detection scanning face, can the face of cylinder taking diameter as 74mm be also flaw detection scanning face.
10. the UT (Ultrasonic Testing) detection method of reference block as claimed in claim 9, is characterized in that: in the 3rd step, described benchmark wave height refers to 80% of display screen amplitude.
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| CN104880514A (en) * | 2015-06-19 | 2015-09-02 | 南车成都机车车辆有限公司 | Reference test block for ultrasonic flow detection and using method thereof |
| CN104950043A (en) * | 2015-06-19 | 2015-09-30 | 南车成都机车车辆有限公司 | Processing method of artificial reference block cracks for ultrasonic crack detection |
| CN105351322A (en) * | 2015-12-08 | 2016-02-24 | 国网新源张家口风光储示范电站有限公司 | Test block for bolt ultrasonic testing and bolt ultrasonic testing method and device |
| CN105606714A (en) * | 2015-12-01 | 2016-05-25 | 成都铁安科技有限责任公司 | Calibration block and calibration method for ultrasonic probe used for flaw detection of locomotive wheelset |
| CN106226406A (en) * | 2016-09-19 | 2016-12-14 | 中车成都机车车辆有限公司 | Ultrasonic examination detection reference block and detection method thereof |
| CN108918669A (en) * | 2018-05-29 | 2018-11-30 | 东北轻合金有限责任公司 | A kind of 2 ××× line aluminium alloy thin plate Lamb waves contact method of detection |
| CN109030132A (en) * | 2018-06-14 | 2018-12-18 | 国网安徽省电力有限公司电力科学研究院 | A kind of creep impairment reference block preparation method, damage detecting method and system |
| CN111656127A (en) * | 2018-01-22 | 2020-09-11 | 雷金纳德·盖尔斯蒂恩 | Method and device for measuring diameter of cylindrical measuring pin |
| CN112525996A (en) * | 2020-12-08 | 2021-03-19 | 中国科学院金属研究所 | Ultrasonic imaging detection method for isotropic pyrolytic graphite |
| CN113552216A (en) * | 2021-09-23 | 2021-10-26 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake clamp lever bolt test block and brake clamp lever bolt detection method |
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| CN104880514A (en) * | 2015-06-19 | 2015-09-02 | 南车成都机车车辆有限公司 | Reference test block for ultrasonic flow detection and using method thereof |
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| CN106226406A (en) * | 2016-09-19 | 2016-12-14 | 中车成都机车车辆有限公司 | Ultrasonic examination detection reference block and detection method thereof |
| CN111656127A (en) * | 2018-01-22 | 2020-09-11 | 雷金纳德·盖尔斯蒂恩 | Method and device for measuring diameter of cylindrical measuring pin |
| CN108918669A (en) * | 2018-05-29 | 2018-11-30 | 东北轻合金有限责任公司 | A kind of 2 ××× line aluminium alloy thin plate Lamb waves contact method of detection |
| CN109030132A (en) * | 2018-06-14 | 2018-12-18 | 国网安徽省电力有限公司电力科学研究院 | A kind of creep impairment reference block preparation method, damage detecting method and system |
| CN112525996A (en) * | 2020-12-08 | 2021-03-19 | 中国科学院金属研究所 | Ultrasonic imaging detection method for isotropic pyrolytic graphite |
| CN113552216A (en) * | 2021-09-23 | 2021-10-26 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake clamp lever bolt test block and brake clamp lever bolt detection method |
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