CN103308594A - Composite magnetic powder inspection method for aerial 7-series aluminum alloy surface - Google Patents
Composite magnetic powder inspection method for aerial 7-series aluminum alloy surface Download PDFInfo
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- CN103308594A CN103308594A CN2012100697596A CN201210069759A CN103308594A CN 103308594 A CN103308594 A CN 103308594A CN 2012100697596 A CN2012100697596 A CN 2012100697596A CN 201210069759 A CN201210069759 A CN 201210069759A CN 103308594 A CN103308594 A CN 103308594A
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Abstract
The invention belongs to the field of aeronautical manufacture, relates to a magnetic powder inspection technology and in particular relates to a magnetic powder inspection method for an aerial 7-series aluminum alloy surface. The method comprises the following steps of: carrying out pretreatment and magnetization, applying magnetic powder or magnetic suspension liquid crystal, checking and recording magnetic indication, recording and feeding back surface defects, grading the defects, carrying out demagnetization and performing after-treatment. According to the composite magnetic powder inspection method for the aerial 7-series aluminum alloy surface, the transverse and longitudinal defect extensibility is highly detected, a leakage magnetic field is generated, and high-precision inspection can be performed.
Description
Technical field
The invention belongs to Field of Aviation Manufacturing, relate to the technique of magnetic powder inspection, especially a kind of composite magnetic powder method of detection to aviation 7 line aluminium alloy surfaces.
Background technology
The aviation pipe is the important materials of space flight, aviation and nuclear energy leading-edge field, and magnetic powder inspection (magnetic particle testing) is present in the nondestructive inspection method of the surface of magnetic and near the tiny flaw it as inspection and is well known.Magnetic is to utilize the principle of stray field for minute ultimate principle of flaw detection, the two-way magnetic field superposition that utilization adds forms a magnetic field of not stopping to rotate and puts on surface of the work, be that the fault location of workpiece is not because thereby the magnetic line of force can easily be by leakage field in full bloom, and at fault location formation magnetic pole, magnetic is strengthened, adsorb magnetic, objectively manifest shape and the size of defective.Because externally-applied magnetic field is the magnetic field of not stopping rotating, so one-time detection can omnibearingly demonstrate whole defectives of workpiece.
Traditional mode of magnetization is the mode that circumferential direct-electrifying is adopted in one tunnel magnetic field, forms the whole defectives around workpiece.Traditional mode of magnetization is the method that circumferential direct-electrifying is adopted in one tunnel magnetic field, forms the magnetic field around workpiece; One the tunnel adopts the method for coil to form the magnetic field that the workpiece axial direction is identical, and two-way magnetic field can one-time detection goes out the omnibearing defective of workpiece.But the circumferential detection of the method is directly logical upper High Level AC Voltage of workpiece itself, easily produces generation and the burn workpiece of spark phenomenon; The method that vertically detects easily produces magnetic field and promulgates inhomogeneous and undetected phenomenon that produce also because the switch of workpiece is different.
Therefore, seeking a kind of horizontal, ductile height detection of longitudinal defect, and produce stray field, can carry out the composite magnetic powder method of detection on 7 line aluminium alloy surfaces of high precision flaw detection, is whole industry problem in the urgent need to address.
Summary of the invention
Technical purpose of the present invention is for the deficiencies in the prior art, and a kind of generation stray field is provided, and can carry out the composite magnetic powder method of detection of high precision flaw detection aluminum alloy surface.
The technical scheme that realizes the technology of the present invention purpose is: a kind of composite magnetic powder method of detection to aviation 7 line aluminium alloy surfaces may further comprise the steps:
Pretreatment stage, by at the tested inside surface of having a medical check-up of the tubulose of horizontal arrangement or/and outside surface scatters magnetic powder fluid;
Magnetization phase makes rotary magnetic field along described inside surface or/and outside surface is mobile around described tested central shaft of having a medical check-up, and makes described tested inside surface of having a medical check-up or/and the outside surface magnetization;
Apply magnetic or magnetcisuspension liquid crystal;
The inspection of magnetic trace and record, rotary magnetic field are from described inside surface or/and inspection is moved to the direction of bottom in the top of outside surface;
Surface imperfection record and feedback;
The defective grading;
Demagnetization;
Aftertreatment.
As the further optimization of technique scheme, the inspection of described magnetic trace and when record, the translational speed of rotary magnetic field and the magnetic powder fluid of described distribution along described inside surface or/and outside surface to flow down speed consistent.
As the further optimization of technique scheme, when described distribution magnetic and vestige checked, the moving direction of rotary magnetic field was consistent.
As the further optimization of technique scheme, the translational speed of described rotary magnetic field is or/and the dispersion volume of described magnetic powder fluid, and corresponding tested diameter of having a medical check-up changes.
As the further optimization of technique scheme, the mode of magnetization of magnetization phase is circumferential closure yoke magnetization and longitudinal coil magnetization Full Traffic-Actuated.
Compared with prior art, a kind of composite magnetic powder method of detection beneficial effect main manifestations to aviation 7 line aluminium alloy surfaces of the present invention is:
1) laterally, the ductile height detection of longitudinal defect;
2) and produce stray field;
3) can carry out high precision.
Description of drawings
Figure 1 shows that the steps flow chart block diagram of a kind of composite magnetic powder method of detection to aviation 7 line aluminium alloy surfaces of the present invention.
Embodiment
As one of most preferred embodiment of a kind of composite magnetic powder method of detection to aviation 7 line aluminium alloy surfaces of the present invention, referring to accompanying drawing 1, it may further comprise the steps:
Pretreatment stage is by scattering magnetic powder fluid at the tested inside surface of having a medical check-up of the tubulose of horizontal arrangement and outside surface;
Magnetization phase makes rotary magnetic field mobile around described tested central shaft of having a medical check-up along described inside surface and outside surface, makes the magnetization of described tested inside surface of having a medical check-up and outside surface;
Apply magnetic or magnetcisuspension liquid crystal;
The direction to the bottom moves inspection from the top of described inside surface and outside surface for the inspection of magnetic trace and record, rotary magnetic field;
Surface imperfection record and feedback;
The defective grading;
Demagnetization;
Aftertreatment.
The inspection of described magnetic trace and when record, the translational speed of rotary magnetic field and the magnetic powder fluid of described distribution along described inside surface and outside surface to flow down speed consistent.
When described distribution magnetic and vestige checked, the moving direction of rotary magnetic field was consistent.
The translational speed of described rotary magnetic field and the dispersion volume of described magnetic powder fluid, corresponding tested diameter of having a medical check-up changes.
The mode of magnetization of magnetization phase is circumferential closure yoke magnetization and longitudinal coil magnetization Full Traffic-Actuated.
In sum; after those of ordinary skill in the art reads file of the present invention; need not the replacement that scheme between other various corresponding conversion scheme or the various embodiments of the present invention is made in creative brainwork according to technical scheme of the present invention and technical conceive, all belong to the scope that the present invention protects.
Claims (5)
1. the composite magnetic powder method of detection to aviation 7 line aluminium alloy surfaces is characterized in that, may further comprise the steps:
A. pretreatment stage, by at the tested inside surface of having a medical check-up of the tubulose of horizontal arrangement or/and outside surface scatters magnetic powder fluid;
B. magnetization phase makes rotary magnetic field along described inside surface or/and outside surface is mobile around described tested central shaft of having a medical check-up, and makes described tested inside surface of having a medical check-up or/and the outside surface magnetization;
C. apply magnetic or magnetcisuspension liquid crystal;
D. the inspection of magnetic trace and record, rotary magnetic field are from described inside surface or/and inspection is moved to the direction of bottom in the top of outside surface;
E. surface imperfection records and feedback;
F. defective grading;
G. demagnetization;
H. aftertreatment.
2. a kind of composite magnetic powder method of detection to aviation 7 line aluminium alloy surfaces according to claim 1, it is characterized in that, the inspection of described magnetic trace and when record, the translational speed of rotary magnetic field and the magnetic powder fluid of described distribution along described inside surface or/and outside surface to flow down speed consistent.
3. a kind of composite magnetic powder method of detection to aviation 7 line aluminium alloy surfaces according to claim 1 is characterized in that, when the distribution magnetic in described a stage and the vestige in d stage checked, the moving direction of rotary magnetic field was consistent.
4. arbitrary described a kind of composite magnetic powder method of detection to aviation 7 line aluminium alloy surfaces is characterized in that according to claim 1～3, and the translational speed of described rotary magnetic field is or/and the dispersion volume of described magnetic powder fluid, and corresponding tested diameter of having a medical check-up changes.
5. a kind of composite magnetic powder method of detection to aviation 7 line aluminium alloy surfaces according to claim 1 is characterized in that, the mode of magnetization of b magnetization phase is circumferential closure yoke magnetization and longitudinal coil magnetization Full Traffic-Actuated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100697596A CN103308594A (en) | 2012-03-16 | 2012-03-16 | Composite magnetic powder inspection method for aerial 7-series aluminum alloy surface |
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| CN2012100697596A CN103308594A (en) | 2012-03-16 | 2012-03-16 | Composite magnetic powder inspection method for aerial 7-series aluminum alloy surface |
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| CN103308594A true CN103308594A (en) | 2013-09-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109319901A (en) * | 2018-11-28 | 2019-02-12 | 中冶京诚工程技术有限公司 | Water body purification device |
| CN112986378A (en) * | 2021-02-02 | 2021-06-18 | 南通市建设工程质量检测站有限公司 | Magnetic powder detection device for steel structure omnibearing detection and detection method thereof |
| CN113552209A (en) * | 2021-07-16 | 2021-10-26 | 南京钢铁股份有限公司 | Method for representing grade of banded structure of Q355B steel plate through magnetic particle inspection |
| CN114927262A (en) * | 2022-06-02 | 2022-08-19 | 广东鑫源恒业电力线路器材有限公司 | Magnetic composite material core for composite material core overhead conductor and preparation method thereof |
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| JP2008209148A (en) * | 2007-02-23 | 2008-09-11 | Kobe Steel Ltd | Non-destructive inspection method and device |
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| CN201828544U (en) * | 2010-10-19 | 2011-05-11 | 宝山钢铁股份有限公司 | Magnetic powder inspection device for sampling wire |
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| CN1752746A (en) * | 2004-09-22 | 2006-03-29 | 住友金属工业株式会社 | Method and device for flaw detection of magnetic powder |
| JP2008209148A (en) * | 2007-02-23 | 2008-09-11 | Kobe Steel Ltd | Non-destructive inspection method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109319901A (en) * | 2018-11-28 | 2019-02-12 | 中冶京诚工程技术有限公司 | Water body purification device |
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| CN112986378A (en) * | 2021-02-02 | 2021-06-18 | 南通市建设工程质量检测站有限公司 | Magnetic powder detection device for steel structure omnibearing detection and detection method thereof |
| CN112986378B (en) * | 2021-02-02 | 2024-03-19 | 南通市建设工程质量检测站有限公司 | Magnetic powder detection device for omnibearing detection of steel structure and detection method thereof |
| CN113552209A (en) * | 2021-07-16 | 2021-10-26 | 南京钢铁股份有限公司 | Method for representing grade of banded structure of Q355B steel plate through magnetic particle inspection |
| CN114927262A (en) * | 2022-06-02 | 2022-08-19 | 广东鑫源恒业电力线路器材有限公司 | Magnetic composite material core for composite material core overhead conductor and preparation method thereof |
| CN114927262B (en) * | 2022-06-02 | 2023-10-31 | 广东鑫源恒业电力线路器材有限公司 | Magnetic composite material core for composite material core overhead conductor and preparation method thereof |
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Application publication date: 20130918 |