CN103308660A - Method for detecting aerial aluminum product surface defects - Google Patents
Method for detecting aerial aluminum product surface defects Download PDFInfo
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- CN103308660A CN103308660A CN201210069737XA CN201210069737A CN103308660A CN 103308660 A CN103308660 A CN 103308660A CN 201210069737X A CN201210069737X A CN 201210069737XA CN 201210069737 A CN201210069737 A CN 201210069737A CN 103308660 A CN103308660 A CN 103308660A
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- aluminum product
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- detection method
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Abstract
The invention belongs to the field of aviation flight and in particular relates to a method for detecting aerial aluminum product surface defects. The method comprises the following steps of: detecting the aluminum product surface defects and collecting information; performing heat treatment on an aluminum product in a heat treatment furnace according to detected defect records; dipping an emulsifier on the aluminum product subjected to heat treatment, and slightly shaking or stirring the aluminum product during dipping; performing hot dipping coating on the aluminum product dipped with the emulsifier in a molten bath, and forming an alloy coating on the aluminum product. The method for detecting the aerial aluminum product surface defects can be effectively used for imaging and detecting the defects on uneven surfaces, and the detection accuracy is improved.
Description
Technical field
The invention belongs to the aviation flight field, be specifically related to a kind of detection method of aviation aluminium material surface defective.
Background technology
In Aeronautics and Astronautics, weapons system, as everyone knows by producing bonding jumper such as mechanical processing process rolling or that draw.This bonding jumper is different from sheet metal, ingot or metal tape part and is that its xsect has littler girth/sectional area ratio, makes this bonding jumper to rotate around longitudinal axis/to reverse, and longitudinally moves forward simultaneously.For example, when cross-sectional area when being uniform for given shape, the shape of bonding jumper then has and is equal to or less than 4.25 girth and the ratio of cross-sectional area.The shape of this bonding jumper can be circle, ellipse or polygon when only considering xsect.
In metal production industry, especially space flight and aviation metal manufacturing, whether the existence of surface imperfection is the relevant criterion of metal product being estimated time institute's foundation.Yet routine techniques does not provide the reliable means of the above-mentioned defective of any detection.
The first, metallic aluminium section product " overheated ", temperature under its situation about detecting, has hindered the use of many characterization processes during up to 1100 ℃.
The second, the travelling speed of above-mentioned aluminium can reach 100m/s at present soon, and taller several times than the speed of the fastest bonding jumper, and than nearly 100 times soon of the speed of sheet metal or ingot.In addition, its travelling speed is expected to bring up in the scope of 150～200m/s at no distant date.Simple conventional sense method can not adapt to.
Summary of the invention
Technical purpose of the present invention is at the deficiencies in the prior art, and a kind of detection method that is used for imaging effectively and detects the aviation aluminium material surface defective of the defective on the non-flat surface is provided.
The technical scheme that realizes the technology of the present invention purpose is: a kind of detection method of aviation aluminium material surface defective, and it may further comprise the steps:
To aluminium material surface defects detection and collection information;
According to detected defect record, in heat-treatment furnace, aluminium is heat-treated;
With the aluminium dip-coating emulsifying agent after the thermal treatment, light rolling or stirring aluminium during dip-coating;
The aluminium of dip-coating emulsifying agent is carried out hot dip coating in molten bath, thereby and form alloy coat at aluminium.
As the further optimization of technique scheme, the concentration of described emulsifying agent is 7% ± 3%.
As the further optimization of technique scheme, the residence time of emulsifying agent is less than or equal to 120 seconds.
As the further optimization of technique scheme, comprise strontium in the described molten bath or/and calcium, described strontium is or/and the concentration of calcium is less than or equal to 2ppm.
Further optimization as technique scheme, described " to aluminium material surface defects detection and the collection information " stage comprises, calculating is configured to when aluminium when longitudinally axis moves, can receive the data that the Image Acquisition assembly by this collection obtains, then according to the data that obtain to detect the storage of described aluminium predetermined surface feature record.
Compared with prior art, the beneficial effect of the detection method of a kind of aviation aluminium material surface of the present invention defective mainly shows as: be used for the defective on imaging and the detection non-flat surface effectively, improve the accuracy that detects.
Description of drawings
Figure 1 shows that the flow diagram of the detection method of a kind of aviation aluminium material surface of the present invention defective.
Figure 2 shows that the synoptic diagram that the aluminium material surface defective is detected.
Embodiment
As one of most preferred embodiment of the detection method of a kind of aviation aluminium material surface of the present invention defective, referring to accompanying drawing 1～2, it may further comprise the steps:
To aluminium material surface defects detection and collection information;
According to detected defect record, in heat-treatment furnace, aluminium is heat-treated;
With the aluminium dip-coating emulsifying agent after the thermal treatment, light rolling or stirring aluminium during dip-coating;
The aluminium of dip-coating emulsifying agent is carried out hot dip coating in molten bath, thereby and form alloy coat at aluminium.
The concentration of described emulsifying agent is 7%.
The residence time of emulsifying agent was less than 120 seconds.
Comprise strontium and calcium in the described molten bath, the concentration of described strontium and calcium is less than 2ppm.
Described " to aluminium material surface defects detection and the collection information " stage comprises, calculating is configured to when aluminium when longitudinally axis moves, can receive the data that the Image Acquisition assembly by this collection obtains, then according to the data that obtain to detect the storage of described aluminium predetermined surface feature record.
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 detection method of an aviation aluminium material surface defective is characterized in that, may further comprise the steps:
A. to aluminium material surface defects detection and collection information;
B. according to detected defect record, in heat-treatment furnace, aluminium is heat-treated;
C. with the aluminium dip-coating emulsifying agent after the thermal treatment, gently shake during dip-coating or the stirring aluminium;
D. the aluminium with the dip-coating emulsifying agent carries out hot dip coating in molten bath, thereby and forms alloy coat at aluminium.
2. the detection method of a kind of aviation aluminium material surface defective according to claim 1 is characterized in that, the concentration of described emulsifying agent is 7% ± 3%.
3. the detection method of a kind of aviation aluminium material surface defective according to claim 1 is characterized in that, the residence time of emulsifying agent is less than or equal to 120 seconds.
4. the detection method of a kind of aviation aluminium material surface defective according to claim 1 is characterized in that, comprises strontium in the described molten bath or/and calcium, and described strontium is or/and the concentration of calcium is less than or equal to 2ppm.
5. the detection method of a kind of aviation aluminium material surface defective according to claim 1, it is characterized in that, the described a stage comprises, calculating is configured to when aluminium when longitudinally axis moves, can receive the data that the Image Acquisition assembly by this collection obtains, then according to the data that obtain to detect the storage of described aluminium predetermined surface feature record.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210069737XA CN103308660A (en) | 2012-03-16 | 2012-03-16 | Method for detecting aerial aluminum product surface defects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210069737XA CN103308660A (en) | 2012-03-16 | 2012-03-16 | Method for detecting aerial aluminum product surface defects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103308660A true CN103308660A (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210069737XA Pending CN103308660A (en) | 2012-03-16 | 2012-03-16 | Method for detecting aerial aluminum product surface defects |
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| CN (1) | CN103308660A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486920A (en) * | 2021-12-28 | 2022-05-13 | 江苏凤武铝业有限公司 | Detection device and detection method for surface defects of aviation aluminum product |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761772A (en) * | 2003-03-20 | 2006-04-19 | 布卢斯科普钢铁有限公司 | A method of controlling surface defects in metal-coated strip |
| CN101349652A (en) * | 2007-07-19 | 2009-01-21 | 宝山钢铁股份有限公司 | Detection imaging method and apparatus of strip surface flaw |
| CN101893580A (en) * | 2010-06-10 | 2010-11-24 | 北京交通大学 | Digital image based detection method of surface flaw of steel rail |
-
2012
- 2012-03-16 CN CN201210069737XA patent/CN103308660A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761772A (en) * | 2003-03-20 | 2006-04-19 | 布卢斯科普钢铁有限公司 | A method of controlling surface defects in metal-coated strip |
| CN101349652A (en) * | 2007-07-19 | 2009-01-21 | 宝山钢铁股份有限公司 | Detection imaging method and apparatus of strip surface flaw |
| CN101893580A (en) * | 2010-06-10 | 2010-11-24 | 北京交通大学 | Digital image based detection method of surface flaw of steel rail |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486920A (en) * | 2021-12-28 | 2022-05-13 | 江苏凤武铝业有限公司 | Detection device and detection method for surface defects of aviation aluminum product |
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Application publication date: 20130918 |