CN101013140A - Detection method for sample tube with inclined damnification - Google Patents
Detection method for sample tube with inclined damnification Download PDFInfo
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- CN101013140A CN101013140A CN 200710056749 CN200710056749A CN101013140A CN 101013140 A CN101013140 A CN 101013140A CN 200710056749 CN200710056749 CN 200710056749 CN 200710056749 A CN200710056749 A CN 200710056749A CN 101013140 A CN101013140 A CN 101013140A
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Abstract
The invention provides an oblique injury sample pipe detection method, the method including the following steps: first, detecting the sample pipe oblique injury angle analysis; then, determining the detection sample pipe bus parts; then, detecting the sample pipe oblique injury angle model access. The effect of this invention is the measurement method of the sample pipe oblique injury angle, to complete the measurement of injury oblique angle with artificial oblique injury detection sample pipe. With this detection sample pipe oblique injury angle measurement method, it solves the technical problems that the international latest detection technique applied in the domestic. Since the success of the detection sample pipe measurement technology, it greatly improves the technical level of the injury detection equipments, and meets the latest international technical requirements. At the same time, since the measurement method is scientific and operability, it obtains the authority of Mobil, and other international certifications, which protecting smooth completeness of the relevant international quality certification.
Description
Technical field
A kind of method that detects the sample pipe of the present invention, particularly a kind of detection method for sample tube that has oblique wound.
Background technology
Test sample tube mainly is for the demarcation to nondestructiving inspecting equipment, is to use as the measurement criteria that detects tube quality, and it is directly connected to production process quality control and the end product quality of steel pipe.Detect the sample pipe and require identical nominal size is arranged, have identical material, surface appearance, condition of heat treatment and acoustic characteristic, promptly have identical physics, chemical characteristic with tested steel pipe.The surface of detecting the sample pipe is to be made of a plurality of people's industrial injuries, the geometrical property of people's industrial injury is made according to standard, people's industrial injury is qualified after testing, this detects the sample tube side and can be used as qualified detection sample pipe use, and the standard of former steel pipe flaw detection only requires that detection sample pipe people industrial injury is parallel with the bus that detects the sample pipe or vertical angle distributes.Because the raising along with the steel pipe examination criteria, particularly the international integrated oil company such as Mobil, shell has adopted new specification requirement to test sample tube, namely the angle of inclination of tiltedly hindering in the test sample tube people industrial injury is tested, and will be final as international new Technical specifications.And now detect sample pipe measuring technology not to tiltedly hindering the method for testing of angle, therefore can't finish tiltedly hindering the measurement at angle of inclination.
Summary of the invention
For solving the problem that exists in the above-mentioned technology, the purpose of this invention is to provide a kind of detection method for sample tube that has oblique wound, adopt a kind of brand-new detection method, solve to detect the sample pipe, improve and the perfect quality testing guarantee system of steel tube flaw detection tiltedly hindering angle of bank measurement.
For achieving the above object, technical solution of the present invention provides a kind of detection method for sample tube that has oblique wound, and this method comprises following detection step:
At first, test sample tube is tiltedly hindered the analysis at position, inclination angle
Because steel tube surface is the camber structure, measure the angle of inclination of test sample tube artificial oblique injury and test sample tube, geometry according to test sample tube, the bus of test sample tube is parallel with the axis of test sample tube, infer the angle of inclination that test sample tube artificial oblique injury and test sample tube, be exactly the angle of test sample tube artificial oblique injury and test sample tube bus, determine the bus of test sample tube, the angle of inclination of namely measuring test sample tube artificial oblique injury and test sample tube;
Then, determine the bus position of test sample tube
Finish the bus of determining to detect the sample pipe by the triangular form chi, two bases of this triangular form chi are parallel each other, two parallel bases of triangular form chi are fully contacted with detection sample tube-surface, this moment, two parallel bases of triangular form chi were parallel each other with the axis that detects the sample pipe, with the bus that detects the sample pipe is to overlap, the outline line on two parallel bases of triangular form chi is regarded as the bus that detects the sample pipe, thereby determined to detect the bus of sample pipe.
Then, detecting the sample pipe tiltedly hinders angle model and obtains
After two bases of triangular form chi are contacted with test sample tube is stable, an oblique wound in base and test sample tube surface of triangular form chi is intersected, adopt the mode of applying film, intersection making angle model is tiltedly hindered on base and test sample tube surface at the triangular form chi, the recycling optical projector is measured the angle model that obtains, thereby obtains the test sample tube artificial oblique injury to the angle of inclination value of test sample tube.
Effect of the present invention is the measuring method of tiltedly hindering the angle of inclination of this test sample tube, finishes the measurement of tiltedly hindering the angle of inclination with the test sample tube of artificial oblique injury.Adopt the measuring method of tiltedly hindering the angle of inclination of this test sample tube, solved the technical barrier of international up-to-date inspection technique application at home.Because this has improved the technical merit of defect-detecting equipment greatly to detecting the success of sample pipe Research on measuring technique, has satisfied international up-to-date technical requirement.Simultaneously, because science that this measuring method has and operability, obtain the approval of internal authority authentications such as Mobil, ensured that the international quality authentication of being correlated with finishes smoothly.
Description of drawings
Fig. 1 is the sample tubular construction schematic diagram in the present invention's detection;
Fig. 2 detects the structure of intermediate cam type chi for the present invention;
Fig. 3 tiltedly hinders obtaining of angle model for detecting the sample pipe in the present invention's detection;
Fig. 4 is for implementing the position synoptic diagram in the present invention's detection.
Among the figure:
1, test sample tube 2, tiltedly hinder 3, vertically hinder 4, parallel wound
S, triangular form chi D, triangular form chi base M, acquisition tiltedly hinder angle model
1., detect sample tube's axis position 2., detect sample pipe bus position
3., bus and oblique the wound fold the angular position
Embodiment
Reaching embodiment in conjunction with the accompanying drawings is illustrated the detection method for sample tube that has oblique wound of the present invention.
Method of the present invention be with an Apparently in Good Order﹠ Condition with the steel pipe of artificial oblique injury as test sample tube 1 (as shown in Figure 1), at body the artificial oblique injury 2 that is the angle of inclination with the steel pipe bus is arranged, the angle of inclination of artificial oblique injury is measured.The measuring method of tiltedly hindering the angle of inclination of this detection sample pipe, at first solved the definite problem of tiltedly hindering the angle of inclination that detects the sample pipe, prove by analysis, the final bus of determining to detect the sample tube-surface 2. with the angle of the oblique wound that detects the sample pipe 3. (as shown in Figure 4), the oblique wound that is detection sample pipe is to detecting the angle of inclination of sample pipe, thereby obtain this bus that detects the sample tube-surface 2. with the sample M of the angle of the oblique wound 2 that detects the sample pipe, that just can measure detection sample pipe tiltedly hinders the angle of inclination.Secondly, the sample of the angle of tiltedly hindering for bus and the test sample tube on acquisition science, desirable test sample tube surface, need to guarantee the bus accurate positioning on test sample tube surface, made for this reason and met theoretical auxiliary testing tool triangular form chi S (as shown in Figure 2), make it directly obtain at work the bus of test sample tube and the angle of tiltedly hindering the inclination angle, thereby provide reliable technique guarantee for the obtaining of angle of inclination sample of tiltedly hindering of test sample tube.Simultaneously, to detecting the detection of tiltedly hindering the angle of inclination of sample pipe, adopt the endoscope of band numeral differentiation plate, directly obtain angle value at small space.
Detection method for sample tube with tiltedly hindering of the present invention, its method comprises following detecting step:
At first, test sample tube is tiltedly hindered the analysis at position, inclination angle
Shown in Fig. 1,4, because steel tube surface is the camber structure, measure the angle of inclination of test sample tube artificial oblique injury and test sample tube, at first must find reference point.The angle of inclination of artificial oblique injury and test sample tube, be exactly artificial oblique injury 3. with test sample tube axis angle (as shown in Figure 4) 1..And artificial oblique injury and test sample tube axis objectively are disjoint, and real artificial oblique injury is on the surface of test sample tube.According to the geometric configuration that detects the sample pipe, 2. the bus that detects the sample pipe is parallel with the axis that detects the sample pipe, according to translation principle, can infer the artificial angle of inclination of tiltedly hindering and detect the sample pipe of detection sample pipe, exactly detect the artificial angle of tiltedly hindering and detect sample pipe bus of sample pipe.Therefore, as long as determined the bus of test sample tube, just can measure the angle of inclination of test sample tube artificial oblique injury and test sample tube.
Then, determine the bus position of test sample tube
As shown in Figure 2, determine that the bus of detection sample pipe can be finished by triangular form chi S, as shown in Figure 2.Two base D of this triangular form chi require parallel.Parallel lines are rock-steady structures, when two parallel bases of triangular form chi fully contact with detection sample tube-surface, this moment, two parallel base D of triangular form chi were 1. parallel with the axis that detects the sample pipe, 2. overlap with the bus that detects the sample pipe, so, just the outline line on two parallel bases of triangular form chi can be thought to detect the bus of sample pipe, thereby determine to detect the bus of sample pipe.
Then, detecting the sample pipe tiltedly hinders angle model and obtains
As shown in Figure 3, in practical operation, with two base D of triangular form chi with detect that the sample pipe is stable contact, the base that makes the triangular form chi with detect the sample tube-surface and tiltedly hinder crossing, adopt the method for applying film, tiltedly hinder the intersection on the base of triangular form chi with detection sample tube-surface and make angle model M.Utilize the optical projection instrument that the angle model that is obtained is measured then, thereby obtain to detect the artificial tiltedly wound of sample pipe detecting the angle of inclination value of sample pipe.
Mobil Oil Corporation's product certification adopts international up-to-date technical standard, and wherein most important is exactly to 12 ° of measurements of tiltedly hindering angle of test sample tube.For realizing this important technology index, the oblique wound formation that detects the sample pipe has been carried out detail analysis.Think that the oblique wound of any test sample tube is distributed in the surface of test sample tube, the angle of inclination of itself and test sample tube is disjoint in the space, and its angle is relative, and this just brings difficulty for its measurement.The parallel relation of the bus of the axis of analyzing and testing sample pipe and test sample tube can determine that the bus of test sample tube and the oblique angle that intersects of hindering of test sample tube are the oblique angle of inclination of hindering test sample tube of test sample tube for this reason.Determining of the oblique injury of test sample tube test sample tube bus importantly in measuring process, design triangle type chi structure for this reason, these chi two bases are parallel.In measuring process, keep triangular form chi two bases fully to contact with detecting the sample tube-surface, intersect with oblique wound of detection sample pipe on a base, at this intersection area overlay film, obtains triangular form chi base and the oblique sample pattern that intersects angle of hindering of detection sample pipe.Finally record this angle value at optical detection apparatus.Its measuring accuracy meets the requirement of international up-to-date nondestructive testing technique standard, and access authentication mechanism is affirmed.
Claims (1)
1, a kind of detection method for sample tube with tiltedly hindering, this method comprises following detecting step:
At first, determine that test sample tube tiltedly hinders the position, inclination angle
Because steel tube surface is the camber structure, measure the angle of inclination of test sample tube artificial oblique injury and test sample tube, geometry according to test sample tube, the bus of test sample tube is parallel with the axis of test sample tube, infer the angle of inclination that test sample tube artificial oblique injury and test sample tube, be exactly the angle of test sample tube artificial oblique injury and test sample tube bus, determine the bus of test sample tube, the angle of inclination of namely measuring test sample tube artificial oblique injury and test sample tube;
Then, determine the bus position of test sample tube
Finish the bus of determining to detect the sample pipe by the triangular form chi, two bases of this triangular form chi are parallel each other, two parallel bases of triangular form chi are fully contacted with detection sample tube-surface, this moment, two parallel bases of triangular form chi were parallel each other with the axis that detects the sample pipe, with the bus that detects the sample pipe is to overlap, the outline line on two parallel bases of triangular form chi is regarded as the bus that detects the sample pipe, thereby determined to detect the bus of sample pipe.
Then, detecting the sample pipe tiltedly hinders angle model and obtains
After two bases of triangular form chi are contacted with test sample tube is stable, an oblique wound in base and test sample tube surface of triangular form chi is intersected, adopt the mode of applying film, intersection making angle model is tiltedly hindered on base and test sample tube surface at the triangular form chi, the recycling optical projector is measured the angle model that obtains, thereby obtains the test sample tube artificial oblique injury to the angle of inclination value of test sample tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100567498A CN101013140B (en) | 2007-02-07 | 2007-02-07 | Detection method for sample tube with inclined damnification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100567498A CN101013140B (en) | 2007-02-07 | 2007-02-07 | Detection method for sample tube with inclined damnification |
Publications (2)
| Publication Number | Publication Date |
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| CN101013140A true CN101013140A (en) | 2007-08-08 |
| CN101013140B CN101013140B (en) | 2011-09-28 |
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| CN2007100567498A Active CN101013140B (en) | 2007-02-07 | 2007-02-07 | Detection method for sample tube with inclined damnification |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099031C (en) * | 1995-10-27 | 2003-01-15 | 日本钢管株式会社 | Method for detecting surface defects and apparatus thereof |
| WO2001071323A1 (en) * | 2000-03-24 | 2001-09-27 | Olympus Optical Co., Ltd. | Apparatus for detecting defect |
| KR100385402B1 (en) * | 2002-05-22 | 2003-05-23 | Imt Co Ltd | Apparatus for inspecting automatically defect of inner curved surface of braun tube |
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Effective date of registration: 20190626 Address after: No. 396 Jintang Highway, Dongli District, Tianjin 300301 Patentee after: Tianjin Steel Tube Manufacturing Co., Ltd. Address before: 300301 Jintang Road, Dongli District, Tianjin Patentee before: Tianjin Steel Pipe Group Co., Ltd. |
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