CN203365382U - Artificial defect test block for steel bar magnetic powder inspection - Google Patents
Artificial defect test block for steel bar magnetic powder inspection Download PDFInfo
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- CN203365382U CN203365382U CN 201320343172 CN201320343172U CN203365382U CN 203365382 U CN203365382 U CN 203365382U CN 201320343172 CN201320343172 CN 201320343172 CN 201320343172 U CN201320343172 U CN 201320343172U CN 203365382 U CN203365382 U CN 203365382U
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- magnetic powder
- test block
- artificial defect
- magnetic
- powder inspection
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Abstract
The utility model belongs to the field of non-destructive detection, and particularly relates to an artificial defect test block used for steel bar magnetic powder detection. The artificial defect test block comprises a steel circular ring, a red copper rod and an insulating ring, wherein the steel circular ring is fixedly sleeved with the outer surface of the insulating ring; the red copper rod is inserted into the insulating ring. The artificial defect test block can detect performance of magnetic powder inspection systems such as magnetic powder inspection equipment, magnetic powder and magnetic suspension liquid (system sensitivity), also can detect an effective magnetization range and a general magnetic intensity direction; magnetic intensity or current intensity required by an allowable defect of a workpiece can be reflected; circumferential and axial intensity required by magnetic powder inspection of the workpiece can be chosen reasonably; whether an inspection process and an inspection method are appropriate and can meet requirements or not can be tested, thereby reducing the possibility of missing detection.
Description
Technical field
The utility model belongs to field of non destructive testing, is specifically related to a kind of artificial defect test block of using that detects for the rod iron magnetic.
Background technology
The test block of rod iron magnetic powder inspection artificial defect, it is a kind of instrument for detection of magnetic fault detection system performances such as magnetic particle inspection apparatus, magnetic and magnetic flaw detection inks (system sensitivity), also can detect effective magnetizing scope, magnetization direction roughly simultaneously, examine defects detecting technology used and method of detection whether appropriate, whether meet customer requirements.Current test block can only be measured axial defect, or can only measure circumferential defect, and the product of my company is mainly rod iron, requires to detect processing surface afterwards or the defect on nearly surface, and the customer requirements difference, judges that whether qualified standard differs.Therefore need a kind of simple applicable test block, meet the testing requirement of both direction simultaneously.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art and the test block of a kind of rod iron magnetic powder inspection artificial defect is provided, simple in structure, and the magnetic that is applicable to rod iron etc. detects.
The purpose of this utility model is achieved in that
The test block of a kind of rod iron magnetic powder inspection artificial defect, comprise a steel annulus, a red copper bar, a dead ring, and described steel annulus is fixedly set in the dead ring outside surface, and described red copper bar is inserted in dead ring.
It is the artificial defect hole that 1mm, the degree of depth are 10mm that described steel annulus one end face equidistant placement has six diameters of first group, and six defective hole of described first group are respectively apart from the distance of steel annulus outside surface: 1mm, 2mm, 3mm, 4mm, 5mm, 10mm.
Described steel annulus side circumference is provided with a cylindricality breach, this indentations section is fan-shaped, it is the artificial defect hole that 1mm, the degree of depth are 10mm that this sector notch side is provided with four diameters of second group, four defective hole of described second group are respectively apart from the distance of steel annulus outside surface: 1mm, 2mm, 3mm, 4mm, the spacing between adjacent holes is 10mm.
The utlity model has following advantage: the utility model both can detect the magnetic fault detection system performances such as magnetic particle inspection apparatus, magnetic and magnetic flaw detection ink (system sensitivity), also can detect effective magnetizing scope, magnetization direction roughly.Can reflect the needed magnetic field intensity of workpiece allowable defect or size of current, the magnetic field intensity of the circumferential and axial that the magnetic powder inspection of choose reasonable workpiece is required, examine defects detecting technology used and method of detection whether appropriate, whether meet the demands, thereby reduce undetected possibility.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The structural scheme of mechanism of the end face that Fig. 2 is the steel annulus.
The enlarged drawing that Fig. 3 is the A part.
The enlarged drawing that Fig. 4 is the B part.
Embodiment
As shown in Figure 1,2,3, 4, the test block of a kind of rod iron magnetic powder inspection artificial defect, comprise a steel annulus, a red copper bar, a dead ring, and described steel annulus is fixedly set in the dead ring outside surface, and described red copper bar is inserted in dead ring.
It is the artificial defect hole that 1mm, the degree of depth are 10mm that described steel annulus one end face equidistant placement has six diameters of first group, and six defective hole of described first group are respectively apart from the distance of steel annulus outside surface: 1mm, 2mm, 3mm, 4mm, 5mm, 10mm.
Described steel annulus side circumference is provided with a cylindricality breach, this indentations section is fan-shaped, it is the artificial defect hole that 1mm, the degree of depth are 10mm that this sector notch side is provided with four diameters of second group, four defective hole of described second group are respectively apart from the distance of steel annulus outside surface: 1mm, 2mm, 3mm, 4mm, the spacing between adjacent holes is 10mm.
Before workpiece is carried out to the longitudinal defect detection, technical requirement and operative norm according to workpiece, at first this test block is clipped on two electrode tip holders of defectoscope, and water magnetic flaw detection ink in test block, pass through electric current in red copper bar, make the ring magnetization of steel garden, by the size of current difference, the magnetic field intensity difference produced, because defective hole is positioned at nearly surface, after being magnetized around these defects, when defect direction and magnetic direction have a certain degree, variation due to the magnetic permeability of fault location (artificial defect hole), magnetic line of force effusion surface of the work, produce stray field, the absorption magnetic forms the magnetic trace, just on the ring of steel garden, the surperficial correspondence position of artificial defect demonstrates different defect stripeds.Now, due to magnetic direction for radially to, be 90 ° with the longitudinal defect hole, what demonstrate is the longitudinal defect striped.Determine the size of electric current in actual measurement by observing the defect striped, sensitivity and response limit numerical value, meet the requirement of test standard and technique.After determining electric current, can be detected workpiece.
Claims (3)
1. rod iron magnetic powder inspection artificial defect test block is characterized in that: comprise a steel annulus, a red copper bar, a dead ring, described steel annulus is fixedly set in the dead ring outside surface, and described red copper bar is inserted in dead ring.
2. a kind of rod iron magnetic powder inspection artificial defect according to claim 1 test block, it is characterized in that: it is the artificial defect hole that 1mm, the degree of depth are 10mm that described steel annulus one end face equidistant placement has six diameters of first group, and six defective hole of described first group are respectively apart from the distance of steel annulus outside surface: 1mm, 2mm, 3mm, 4mm, 5mm, 10mm.
3. a kind of rod iron magnetic powder inspection artificial defect according to claim 1 test block, it is characterized in that: described steel annulus side circumference is provided with a cylindricality breach, this indentations section is fan-shaped, it is the artificial defect hole that 1mm, the degree of depth are 10mm that this sector notch side is provided with four diameters of second group, four defective hole of described second group are respectively apart from the distance of steel annulus outside surface: 1mm, 2mm, 3mm, 4mm, the spacing between adjacent holes is 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320343172 CN203365382U (en) | 2013-06-17 | 2013-06-17 | Artificial defect test block for steel bar magnetic powder inspection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320343172 CN203365382U (en) | 2013-06-17 | 2013-06-17 | Artificial defect test block for steel bar magnetic powder inspection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203365382U true CN203365382U (en) | 2013-12-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320343172 Expired - Lifetime CN203365382U (en) | 2013-06-17 | 2013-06-17 | Artificial defect test block for steel bar magnetic powder inspection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203365382U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483379A (en) * | 2014-12-15 | 2015-04-01 | 贵州红林机械有限公司 | Magnetic powder inspection conductor rod with combined bracket |
| CN107589172A (en) * | 2017-09-05 | 2018-01-16 | 航天精工股份有限公司 | A kind of detection method of low-carbon alloy steel exception phase |
| 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 |
| CN113686961A (en) * | 2021-08-17 | 2021-11-23 | 武汉理工大学 | Curved surface part ultrasonic full-focusing defect quantitative detection method and system |
-
2013
- 2013-06-17 CN CN 201320343172 patent/CN203365382U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483379A (en) * | 2014-12-15 | 2015-04-01 | 贵州红林机械有限公司 | Magnetic powder inspection conductor rod with combined bracket |
| CN104483379B (en) * | 2014-12-15 | 2018-01-19 | 贵州红林机械有限公司 | A kind of magnetic powder test stub with sectional shelf-unit |
| CN107589172A (en) * | 2017-09-05 | 2018-01-16 | 航天精工股份有限公司 | A kind of detection method of low-carbon alloy steel exception phase |
| 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 |
| CN113686961A (en) * | 2021-08-17 | 2021-11-23 | 武汉理工大学 | Curved surface part ultrasonic full-focusing defect quantitative detection method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180806 Address after: 459000 531 Industrial Park, Tiger Hill Industrial Cluster, Jiyuan City, Jiaozuo, Henan Patentee after: HENAN ZHONGYUAN SPECIAL STEEL EQUIPMENT MANUFACTURING Co.,Ltd. Address before: 459000 Xiao Zhai, Jiyuan Town, Jiyuan City, Henan Patentee before: ZHONGYUAN SPECIAL STEEL Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
|
| CX01 | Expiry of patent term |