CN205353001U - Test block of magnetic particle testing depth measurement pass - Google Patents
Test block of magnetic particle testing depth measurement pass Download PDFInfo
- Publication number
- CN205353001U CN205353001U CN201620079415.7U CN201620079415U CN205353001U CN 205353001 U CN205353001 U CN 205353001U CN 201620079415 U CN201620079415 U CN 201620079415U CN 205353001 U CN205353001 U CN 205353001U
- Authority
- CN
- China
- Prior art keywords
- test block
- flat
- depth
- degree
- bottom hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
Test block of magnetic particle testing depth measurement pass, this test block is the cuboid form, and the test block cross section is the square, is equipped with the flat hole of several respectively on the horizontal symmetry of test block axle and perpendicular symmetry axis, and flat hole sets up perpendicularly for the test block, the position in the flat hole of several is for the central point central symmetry of test block, and along the horizontal symmetry axle and the perpendicular symmetry axis of test block, the direction in the outside from the test block central point to the test block, the degree of depth in flat hole increases in proper order or reduces in proper order, the poor 0.8~1.2mm that be of the degree of depth in adjacent flat hole, the degree of depth and the high 0.9~1.1mm of difference of test block in flat hole. When using, do not open the surface in flat hole to the test block and detect, according to the measuring degree of depth of this method of the determination of position the most deeply that defect is located that detects. The problem of the undeterminable defect degree of depth of conventional test block among the magnetic particle testing has been solved in this test block, especially can confirm magnetic particle testing's depth extension in TOFD detects through this test block, ensures the reliability and the validity of TOFD detection, reduces quality accident risk.
Description
Technical field
This utility model belongs to Magnetic testing test block field, is specifically related to a kind of Magnetic testing depth measurement pass test block.
Background technology
TOFD detects due to the particularity of technology, can there is blind area on upper and lower two surfaces of workpiece.Compared with lower surface blind area, upper surface blind area scope is bigger, and the impact of detection reliability is also bigger.In actual TOFD detects, upper and lower surface blind area can be aided with Magnetic testing, reduce upper and lower surface blind area.
Magnetic testing is applicable to detection ferrimagnet surface and near surface flaw；Its detection range is: 1, the Ni-based ferrimagnet of ferrum, unprocessed raw material (such as steel billet)；2, the semi-finished product of processing, finished parts and in-service and used workpiece；3, tubing, bar, sheet material, shape material and forged steel pieces steel-casting and weldment；4, the bearing of trend on surface of the work and nearly surface is tried one's best with magnetic line of force direction vertical defect, and it is not suitable for detection bearing of trend and the magnetic line of force angular separation defect less than 20 degree with this understanding；5, the less defect of surface of the work and nearly surface, is not suitable for the defect of detection shallow and wide with this understanding.
Need the shortcoming using magnetic powder test block to be when current Magnetic testing: cannot determine the detection degree of depth, thus cannot the position drawing defect.
Utility model content
This utility model aims to provide the Magnetic testing depth measurement pass test block that a kind of result of use is good.
For solving above-mentioned technical problem, this utility model provides following technical scheme: Magnetic testing depth measurement pass test block, and in test block, distribution has several vertically disposed flat-bottom hole of relative test block, and depth difference between each two flat-bottom hole is minimum is 0.4 ~ 0.6mm；The minimum-depth of flat-bottom hole is 2.4 ~ 2.6mm, and the difference in height of the depth ratio test block of flat-bottom hole is at least 0.9 ~ 1.1mm.
Described test block is rectangular-shaped, and test block cross section is square, and several flat-bottom holes are uniformly distributed in horizontal symmetry axis and the vertical axis of symmetry of test block；
The position of several flat-bottom holes is relative to the central point centrosymmetry of test block；Along horizontal symmetry axis and the vertical axis of symmetry of test block, the direction outside from 4 flat-bottom holes nearest apart from test block central point to test block, the degree of depth of flat-bottom hole increases successively or is sequentially reduced, and the depth difference between adjacent flat bottom outlet is 0.8 ~ 1.2mm；The nearest degree of depth respectively 2.4 ~ 2.6mm of 4 flat-bottom holes of central point of distance test block, 2.9 ~ 3.1mm, the little 0.9 ~ 1.1mm of tile height of having a competition, the little 1.4 ~ 1.6mm of tile height of having a competition.
Distance between flat-bottom hole and test block central point that distance test block central point is nearest is 6 ~ 10mm, and the distance between adjacent flat bottom outlet is 4 ~ 6mm.
The diameter of flat-bottom hole is 2mm.
Described test block length is 200mm, and width is 200mm, is highly 8mm；
Test block has 20 flat-bottom holes, the degree of depth respectively 2.5mm, 3mm, 7mm, the 6.5mm of 4 flat-bottom holes that distance test block central point is nearest；
In the horizontal symmetry axis of test block, play the direction outside test block from the flat-bottom hole that the degree of depth is 2.5mm, the degree of depth of flat-bottom hole respectively 2.5mm, 3.5mm, 4.5mm, 5.5mm, 6.5mm；
In the horizontal symmetry axis of test block, play the direction outside test block from the flat-bottom hole that the degree of depth is 7mm, the degree of depth of flat-bottom hole respectively 7mm, 6mm, 5mm, 4mm, 3mm；
In the vertical axis of symmetry of test block, play the direction outside test block from the flat-bottom hole that the degree of depth is 6.5mm, the degree of depth of flat-bottom hole respectively 6.5mm, 5.5mm, 4.5mm, 3.5mm, 2.5mm；
In the vertical axis of symmetry of test block, play the direction outside test block from the flat-bottom hole that the degree of depth is 3mm, the degree of depth of flat-bottom hole respectively 3mm, 4mm, 5mm, 6mm, 7mm.
By above technical scheme, the beneficial effects of the utility model are:
1. flat-bottom hole is vertically arranged relative to test block, thus accurately drawing the degree of depth of flat-bottom hole；Minimum 0.4 ~ the 0.6mm of being of depth difference between each two flat-bottom hole or be the integral multiple of 0.4 ~ 0.6mm, so that be distributed enough flat-bottom holes in test block, improves the precision of the detection degree of depth；The degree the most deeply of flat-bottom hole is the little 0.9 ~ 1.1mm of tile height of having a competition, it is to avoid the degree of depth of flat-bottom hole and the test block too small phenomenon causing flat-bottom hole to penetrate test block of difference highly.
2. flat-bottom hole vertical distribution in horizontal symmetry axis and vertical axis of symmetry, thus improving the different direction of magnetization recall rate to defect；
3. the distance between adjacent flat bottom outlet is 4 ~ 6mm, it is to avoid occur bigger blind area between flat-bottom hole；
4. the diameter of flat-bottom hole is 2mm, and one-time detection can complete the detection to this degree of depth, thus improving detection sensitivity.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is Fig. 1 left view.
Detailed description of the invention
Magnetic testing depth measurement pass test block 1 as depicted in figs. 1 and 2, including test block 1, test block 1 is square in rectangular-shaped and test block 1 cross section, and the material of test block 1 is identical or approximate with the material of detected material, to ensure the being referred to property of testing result.
Being evenly distributed with several flat-bottom hole 2 in test block 1, the depth difference of each two flat-bottom hole 2 is 0.4 ~ 0.6mm, or is the integral multiple of 0.4 ~ 0.6mm, is enable to measure the degree of depth that test block is more.If arranged by the degree of depth of flat-bottom hole 2, then the depth difference between adjacent flat bottom outlet 2 is 0.4 ~ 0.6mm, improves the accuracy of detection depth accuracy.Flat-bottom hole 2 is vertically arranged both with respect to test block 1 simultaneously, thus improving the different direction of magnetization recall rate to defect.
Position for flat-bottom hole 2 is defined below: flat-bottom hole 2 is uniformly distributed in the horizontal symmetry axis and vertical axis of symmetry of test block 1.The position of flat-bottom hole 2 is relative to the central point centrosymmetry of test block 1, so that the distribution that flat-bottom hole 2 is in test block 1 is more neat, it is simple to Magnetic testing.Distance between distance nearest flat-bottom hole 2 and test block 1 central point of test block 1 central point is 6 ~ 10mm, and the distance between adjacent flat bottom outlet 2 is 4 ~ 6mm, with abundant improve detection time the scope that relates to, it is to avoid between flat-bottom hole, defect magnetic particle indications interferes.
Diameter for flat-bottom hole 2 is defined below: the diameter of flat-bottom hole 2 is 2mm, one-time detection can complete the detection to this degree of depth, thus improving the sensitivity of Magnetic testing on the one hand, making test block 1 can be distributed more flat-bottom hole 2 on the other hand, improving detection depth accuracy.
The degree of depth for flat-bottom hole 2 is defined below: 4 flat-bottom holes 2 nearest along distance test block 1 central point arrive the direction outside test block 1, the degree of depth of flat-bottom hole 2 increases successively or is sequentially reduced, thus can obtain the detection degree of depth gradually changed when carrying out Magnetic testing.The depth difference of adjacent flat bottom outlet 2 is 0.8 ~ 1.2mm, it is preferred to 1mm；Because the detection degree of depth of Magnetic testing is approximately 1 ~ 2mm, therefore the depth difference of adjacent flat bottom outlet is 0.8 ~ 1.2mm, it is possible to improve the accuracy of testing result, reduces the degree of depth blind area in detection process as far as possible, improves the precision of the detection degree of depth.Simultaneously, it is ensured that the degree of depth of flat-bottom hole 2 is minimum with the difference of test block 1 height is 0.9 ~ 1.1mm, it is preferred to 1mm.When the degree of depth of flat-bottom hole 2 and the difference in height of test block 1 are too small, it is easy to occur that flat-bottom hole 2 penetrates the phenomenon of test block 1, affect testing result.
The degree of depth respectively 2.4 ~ 2.6mm of nearest 4 flat-bottom holes 2 of central point of distance test block 1, it is preferred to 2.5mm；2.9 ~ 3.1mm, it is preferred to 3mm；0.9 ~ 1.1mm less of the height of test block 1, it is preferred to 1mm；Highly less 1.4 ~ 1.6mm than test block 1, it is preferably 1.5mm, thus when detecting, along test block 1 central point to test block 1 lateral direction, the detection degree of depth is existing, and also having of being gradually increased is gradually reduced, it is possible to avoid the difference impact on testing result of magnetic direction to greatest extent.
Embodiment 1, the present embodiment is with the length of test block 1 for 200mm, and width is 200mm, is highly 8mm, test block 1 has 20 flat-bottom holes 2 and is described in detail for example.It is highly 8mm because of test block 1, therefore the degree of depth respectively 2.5mm, 3mm, 7mm, 6.5mm of distance nearest 4 flat-bottom holes 2 of test block 1 central point, thus ensureing on the one hand to record the more degree of depth；Avoiding flat-bottom hole 2 degree of depth to cross deep and affect testing result on the other hand, the diameter of flat-bottom hole is 2mm.
In the horizontal symmetry axis of test block 1, play the direction outside test block 1, the degree of depth of flat-bottom hole 2 respectively 2.5mm, 3.5mm, 4.5mm, 5.5mm, 6.5mm from the flat-bottom hole 2 that the degree of depth is 2.5mm.
In the horizontal symmetry axis of test block 1, play the direction outside test block 1, the degree of depth of flat-bottom hole 2 respectively 7mm, 6mm, 5mm, 4mm, 3mm from the flat-bottom hole 2 that the degree of depth is 7mm.
In the vertical axis of symmetry of test block 1, play the direction outside test block 1, the degree of depth of flat-bottom hole 2 respectively 6.5mm, 5.5mm, 4.5mm, 3.5mm, 2.5mm from the flat-bottom hole 2 that the degree of depth is 6.5mm.
In the vertical axis of symmetry of test block 1, play the direction outside test block 1, the degree of depth of flat-bottom hole 2 respectively 3mm, 4mm, 5mm, 6mm, 7mm from the flat-bottom hole 2 that the degree of depth is 3mm.
When implementing, it should increase the quantity of flat-bottom hole and the degree of depth of corresponding flat-bottom hole thereof according to the size of test block.If the thickness of test block is thick more than 8mm, then the degree of depth of flat-bottom hole suitably should increase according to thickness of slab, should ensure that the distance between the bottom of flat-bottom hole and test block bottom surface is 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm in a word.
By the actual position of defect when distribution can detect test above and depth of defect；Meanwhile, the distribution in test block 1 of the flat-bottom hole 2 of different depth is more uniform, and testing result is more efficient.
When in use, illustrate for the height of test block 1 in embodiment 1 for 8mm.Bottom surface corresponding with the surface being provided with flat-bottom hole in test block 1 is detected, and the detection degree of depth is determined in the deepest position residing for the defect detected.As when Magnetic testing, when the bottom surface not offering flat-bottom hole is detected, if be detected that defect and this defect are be able to detect that the deepest, then see which flat-bottom hole is this defect be positioned at, when the degree of depth of flat-bottom hole 2 is 2.5mm residing for this defect, then may determine that the detection degree of depth of this magnetic powder detection method is 5.5mm.This test block 1 solves conventional test block in Magnetic testing cannot determine the detection degree of depth, the problem that finally cannot determine depth of defect.
This utility model by arranging the flat-bottom hole 2 that several degree of depth gradually changes in test block 1, the degree of depth is truly detected when can measure Magnetic testing, especially in TOFD detects, may determine that the depth bounds of Magnetic testing, it is ensured that the reliability of TOFD detection and effectiveness, reduce quality accident risk.
Claims (5)
1. Magnetic testing depth measurement pass test block, it is characterised in that: in test block, distribution has several vertically disposed flat-bottom hole of relative test block, and several flat-bottom holes are uniformly distributed in horizontal symmetry axis and the vertical axis of symmetry of test block；The position of several flat-bottom holes is relative to the central point centrosymmetry of test block, and depth difference between each two flat-bottom hole is minimum is 0.4 ~ 0.6mm；The minimum-depth of flat-bottom hole is 2.4 ~ 2.6mm, and the degree of depth of flat-bottom hole and the difference in height of test block are at least 0.9 ~ 1.1mm.
2. Magnetic testing depth measurement pass test block as claimed in claim 1, it is characterised in that: described test block is rectangular-shaped, and test block cross section is square；Along horizontal symmetry axis and the vertical axis of symmetry of test block, the direction outside from 4 flat-bottom holes nearest apart from test block central point to test block, the degree of depth of flat-bottom hole increases successively or is sequentially reduced, and the depth difference between adjacent flat bottom outlet is 0.8 ~ 1.2mm；The nearest degree of depth respectively 2.4 ~ 2.6mm of 4 flat-bottom holes of central point of distance test block, 2.9 ~ 3.1mm, the little 0.9 ~ 1.1mm of tile height of having a competition, the little 1.4 ~ 1.6mm of tile height of having a competition.
3. Magnetic testing depth measurement pass test block as claimed in claim 2, it is characterised in that: the distance between flat-bottom hole and test block central point that distance test block central point is nearest is 6 ~ 10mm, and the distance between adjacent flat bottom outlet is 4 ~ 6mm.
4. Magnetic testing depth measurement pass test block as claimed in claim 3, it is characterised in that: the diameter of flat-bottom hole is 2mm.
5. the Magnetic testing depth measurement pass test block as described in Claims 1-4 any one, it is characterised in that: described test block length is 200mm, and width is 200mm, is highly 8mm；
Test block has 20 flat-bottom holes, the degree of depth respectively 2.5mm, 3mm, 7mm, the 6.5mm of 4 flat-bottom holes that distance test block central point is nearest；
In the horizontal symmetry axis of test block, play the direction outside test block from the flat-bottom hole that the degree of depth is 2.5mm, the degree of depth of flat-bottom hole respectively 2.5mm, 3.5mm, 4.5mm, 5.5mm, 6.5mm；
In the horizontal symmetry axis of test block, play the direction outside test block from the flat-bottom hole that the degree of depth is 7mm, the degree of depth of flat-bottom hole respectively 7mm, 6mm, 5mm, 4mm, 3mm；
In the vertical axis of symmetry of test block, play the direction outside test block from the flat-bottom hole that the degree of depth is 6.5mm, the degree of depth of flat-bottom hole respectively 6.5mm, 5.5mm, 4.5mm, 3.5mm, 2.5mm；
In the vertical axis of symmetry of test block, play the direction outside test block from the flat-bottom hole that the degree of depth is 3mm, the degree of depth of flat-bottom hole respectively 3mm, 4mm, 5mm, 6mm, 7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620079415.7U CN205353001U (en) | 2016-01-27 | 2016-01-27 | Test block of magnetic particle testing depth measurement pass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620079415.7U CN205353001U (en) | 2016-01-27 | 2016-01-27 | Test block of magnetic particle testing depth measurement pass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205353001U true CN205353001U (en) | 2016-06-29 |
Family
ID=56184043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620079415.7U Expired - Fee Related CN205353001U (en) | 2016-01-27 | 2016-01-27 | Test block of magnetic particle testing depth measurement pass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205353001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557172A (en) * | 2018-12-29 | 2019-04-02 | 东方电气集团东方锅炉股份有限公司 | Test block and the test block for Magnetic testing depth test are used for the test method of Magnetic testing depth test |
-
2016
- 2016-01-27 CN CN201620079415.7U patent/CN205353001U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557172A (en) * | 2018-12-29 | 2019-04-02 | 东方电气集团东方锅炉股份有限公司 | Test block and the test block for Magnetic testing depth test are used for the test method of Magnetic testing depth test |
| CN109557172B (en) * | 2018-12-29 | 2024-04-02 | 东方电气集团东方锅炉股份有限公司 | Test block and test method for magnetic powder detection depth test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105571461A (en) | Accuracy measurement method for precision tapered hole | |
| CN103604824A (en) | Method for quantitative detection on steel wire rod carbon segregation | |
| CN204535630U (en) | A kind of sample parallel degree proving installation | |
| CN205748152U (en) | A kind of cubing for loader Chain Link | |
| CN205353001U (en) | Test block of magnetic particle testing depth measurement pass | |
| CN205209415U (en) | Accurate taper hole NULL device | |
| CN205353000U (en) | Test block of magnetic particle testing depth measurement cell type | |
| CN205066616U (en) | Measure straightness accuracy and round frock of beating | |
| CN201780088U (en) | Device for measuring depth of rectangular notch of round steel flaw detection contrast sample | |
| CN202256267U (en) | Adjustable ultrasonic testing probe box | |
| CN102409221B (en) | Method for controlling edge cracks of peritectic steel containing niobium or boron | |
| CN208780096U (en) | A kind of bulk detection device of steel construction piece | |
| CN202149740U (en) | Tool for measuring R arc shape of section bar | |
| CN202938743U (en) | Scraper ledge detection device | |
| CN103630104B (en) | Method for measuring curvature radius of spherical basal planes of tapered rollers | |
| CN201935673U (en) | Test block for ultrasonically measuring depths of cracks of groove bottoms of grooving rollers | |
| CN107514963A (en) | A kind of concrete carbonization depth analyzer | |
| CN209682031U (en) | Fixture is used in a kind of detection of bearing roller convexity | |
| CN203672731U (en) | Measuring device for coal petrography firmness coefficient | |
| CN220541890U (en) | Simple gauge for judging qualification of burrs at edges of automobile steel plates | |
| CN205816413U (en) | A kind of roughing vertical roll Alignment measuring device | |
| CN201903306U (en) | Special detecting tool for measuring distance from cylinder hole to crank shaft hole end surface of cylinder body | |
| CN201819648U (en) | Detector for bore diameter of conical counterbore | |
| CN206557165U (en) | It is a kind of to be used for the Special test block of not butt welds ultrasound detection calibration | |
| CN205843609U (en) | For measuring the detection device of sections for guide rails of lefts precision |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20180127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |