CN103743767B - A kind of brazing metal honeycomb welding quality electron microscopic detection method - Google Patents
A kind of brazing metal honeycomb welding quality electron microscopic detection method Download PDFInfo
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- CN103743767B CN103743767B CN201310557676.6A CN201310557676A CN103743767B CN 103743767 B CN103743767 B CN 103743767B CN 201310557676 A CN201310557676 A CN 201310557676A CN 103743767 B CN103743767 B CN 103743767B
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Abstract
The invention belongs to field of measuring technique, be specifically related to a kind of electron microscopic detection method of brazing metal honeycomb welding quality, first on brazing metal honeycomb, sample is cut, sample cuts the direction perpendicular to covering, namely honeycomb core wall is parallel to, then the honeycomb core of cut sample and covering are separated, adopt the method that electron microscopic detects, by observing the destructiveness being separated rear honeycomb core top solder layer with covering, thus the welding quality of honeycomb core and covering is judged.The foundation of brazing metal honeycomb welding quality electron microscopic detection method, makes to become feasible to the evaluation of welding quality between brazing metal honeycomb covering and honeycomb core.Foundation can be provided for the production technology improvement of brazing metal honeycomb and Product Acceptance Review, there is actual using value.
Description
Technical field
The invention belongs to product quality and defect detecting technique field, be specifically related to a kind of detection method of brazing metal honeycomb welding quality.
Background technology
Brazing metal honeycomb, because meeting the requirement of high-speed aircraft to thermal protection system quality and volume, can solve again solar heat protection, heat insulation, a carrying integrated design difficult problem, and be applied to space industry more and more widely.For brazing metal honeycomb, the welding quality between its covering and honeycomb core directly affects the serviceable life of structure, and therefore the detection of brazing metal honeycomb welding quality is extremely important.
Existing honeycomb sandwich construction quality of connection detection method is all for bonding honeycomb structure, is mainly evaluated by Non-Destructive Testing and mechanical property, there is no electron microscopic detection method.And compared with bonding honeycomb structure, brazing metal honeycomb is formed by Welding by covering, honeycomb core and solder, strength of joint between covering and honeycomb core improves greatly, the state of linkage interface also differs widely, and is therefore badly in need of setting up brazing metal honeycomb welding quality detection method.The impact of electron microscopic detection method not test sample shape and size, can carry out accurate evaluation to the welding quality of brazing metal honeycomb, and the production technology for brazing metal honeycomb improves and Product Acceptance Review provides foundation, has actual using value.
Summary of the invention
The invention provides a kind of electron microscopic detection method of brazing metal honeycomb welding quality.What the method utilized electron microscopic detection method to detect brazing metal honeycomb covering and honeycomb core welds situation, its objective is and detect that the covering of brazing metal honeycomb and honeycomb core do not weld mutually and part is welded mutually, thus the welding quality of brazing metal honeycomb is evaluated.
The object of the invention is to be achieved through the following technical solutions:
This kind of brazing metal honeycomb welding quality electron microscopic detection method, is characterized in that, comprise the steps:
(1) on brazing metal honeycomb, cut sample, sample cuts the direction perpendicular to covering, is namely parallel to honeycomb core wall, and the size of sample should be able to ensure to put it in scanning electron microscope carries out observation analysis;
(2) method of mechanical stretching or stripping is adopted the honeycomb core of cut sample and covering to be separated;
(3) under the prerequisite not destroying honeycomb core top solder layer pattern, the honeycomb core after being separated with covering is cleaned;
(4) honeycomb core after cleaning is put into scanning electron microscope, adopt the destructiveness of suitable enlargement factor to honeycomb core top solder layer to observe;
(5) according to the destructiveness of honeycomb core top solder layer, the welding quality between honeycomb core and covering is judged: if honeycomb core top exists without solder layer or solder layer is not destroyed, then illustrate that honeycomb core does not weld at this place mutually with covering; If the solder layer on honeycomb core top is destroyed, then illustrate that honeycomb core welds at this place mutually with covering, if wherein solder layer is completely destroyed, illustrates that honeycomb core welds at this place completely mutually with covering, if solder layer only has part destroyed, illustrate that honeycomb core and covering just partly weld mutually at this place.
Beneficial effect of the present invention:
The foundation of brazing metal honeycomb welding quality electron microscopic detection method, makes to become feasible to the evaluation of welding quality between brazing metal honeycomb covering and honeycomb core.Foundation can be provided for the production technology improvement of brazing metal honeycomb and Product Acceptance Review, there is actual using value.
Accompanying drawing explanation
Fig. 1 is brazing metal honeycomb and sampling schematic diagram
Fig. 2 is brazing metal honeycomb Welding quality test sample schematic diagram
Fig. 3 is the photo that covering does not weld mutually with honeycomb core
Fig. 4 is the photo that covering welds completely mutually with honeycomb core
Fig. 5 is the photo that covering welds with honeycomb core phase-splitting
Embodiment
Below with reference to drawings and Examples, technical solution of the present invention is described in detail:
Shown in accompanying drawing 1 ~ 2, a kind of brazing metal honeycomb welding quality electron microscopic detection method, is characterized in that, comprise the steps:
(1) on brazing metal honeycomb, cut sample 4, sample 4 cuts the direction perpendicular to covering 2, is namely parallel to honeycomb core 1 wall, and the size of sample should be able to ensure to put it in scanning electron microscope carries out observation analysis;
(2) method of mechanical stretching or stripping is adopted to be separated with covering 2 by the honeycomb core 1 of cut sample 4;
(3) under the prerequisite not destroying honeycomb core 1 top solder layer 3 pattern, the honeycomb core 1 after being separated with covering is cleaned;
(4) honeycomb core 1 after cleaning is put into scanning electron microscope, adopt the destructiveness of suitable enlargement factor to honeycomb core 1 top solder layer 3 to observe;
(5) according to the destructiveness of honeycomb core 1 top solder layer 3, the welding quality between honeycomb core 1 and covering 2 is judged: if honeycomb core top exists without solder layer or solder layer is not destroyed, then illustrate that honeycomb core does not weld at this place mutually with covering; If the solder layer on honeycomb core top is destroyed, then illustrate that honeycomb core welds at this place mutually with covering, if wherein solder layer is completely destroyed, illustrates that honeycomb core welds at this place completely mutually with covering, if solder layer only has part destroyed, illustrate that honeycomb core and covering just partly weld mutually at this place.
With brazing metal honeycomb prepared by nickel base superalloy material covering and honeycomb core and nickel-based solder, adopt the image of the inventive method under scanning electron microscope, shown in accompanying drawing 3 ~ 5.
In Fig. 3, the solder layer in region on the upper side, both sides is not destroyed, and region on the lower side, middle part then exists without solder layer, illustrates that honeycomb core does not weld at this place mutually with covering;
In Fig. 4, solder layer is completely destroyed, illustrates that honeycomb core welds at this place completely mutually with covering;
In Fig. 5 except the inclined upper position in right side have the solder layer in a region destroyed except, the solder layer in other region is not all destroyed, and namely only has part destroyed at this place's solder layer, illustrates that honeycomb core and covering are partly weld mutually at this place.
The foundation of brazing metal honeycomb welding quality electron microscopic detection method, makes to become feasible to the evaluation of welding quality between brazing metal honeycomb covering and honeycomb core.Foundation can be provided for the production technology improvement of brazing metal honeycomb and Product Acceptance Review, there is actual using value.
Claims (1)
1. a brazing metal honeycomb welding quality electron microscopic detection method, is characterized in that, comprise the steps:
1) on brazing metal honeycomb, sample (4) is cut, sample (4) cuts the direction perpendicular to covering (2), namely be parallel to honeycomb core (1) wall, the size of sample should be able to ensure to put it in scanning electron microscope carries out observation analysis;
2) method of mechanical stretching or stripping is adopted the honeycomb core (1) of cut sample (4) and covering (2) to be separated;
3) under the prerequisite not destroying honeycomb core (1) top solder layer (3) pattern, the honeycomb core (1) after being separated with covering is cleaned;
4) honeycomb core (1) after cleaning is put into scanning electron microscope, adopt the destructiveness of suitable enlargement factor to honeycomb core (1) top solder layer (3) to observe;
5) according to the destructiveness on honeycomb core (1) top solder layer (3), the welding quality between honeycomb core (1) and covering (2) is judged: if honeycomb core top exists without solder layer or solder layer is not destroyed, then illustrate that honeycomb core does not weld at this place mutually with covering; If the solder layer on honeycomb core top is destroyed, then illustrate that honeycomb core welds at this place mutually with covering, if wherein solder layer is completely destroyed, illustrates that honeycomb core welds at this place completely mutually with covering, if solder layer only has part destroyed, illustrate that honeycomb core and covering just partly weld mutually at this place.
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| CN201310557676.6A CN103743767B (en) | 2013-11-07 | 2013-11-07 | A kind of brazing metal honeycomb welding quality electron microscopic detection method |
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| CN201310557676.6A CN103743767B (en) | 2013-11-07 | 2013-11-07 | A kind of brazing metal honeycomb welding quality electron microscopic detection method |
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| CN103743767A CN103743767A (en) | 2014-04-23 |
| CN103743767B true CN103743767B (en) | 2016-02-10 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237276B (en) * | 2014-10-16 | 2016-08-24 | 北京星航机电装备有限公司 | Brazing metal honeycomb face core sealing-off defect electron microscopic detection method |
| CN104267037A (en) * | 2014-10-16 | 2015-01-07 | 北京星航机电装备有限公司 | Stereoptic microscopic detection method for surface core sealing-off defects of brazing metal honeycomb structures |
| CN106289855A (en) * | 2016-08-26 | 2017-01-04 | 北京星航机电装备有限公司 | Brazing metal honeycomb texture welding quality metallographic detection method |
Citations (3)
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| JPH06194131A (en) * | 1992-12-22 | 1994-07-15 | Toshiba Corp | Soldering inspecting device and soldering inspecting method |
| CN102147386A (en) * | 2010-12-23 | 2011-08-10 | 中国原子能科学研究院 | Nondestructive testing method for metal welding seam |
| CN102706890A (en) * | 2012-06-12 | 2012-10-03 | 中国南方航空工业(集团)有限公司 | Detection device and detection method of honeycomb brazing part |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06194131A (en) * | 1992-12-22 | 1994-07-15 | Toshiba Corp | Soldering inspecting device and soldering inspecting method |
| CN102147386A (en) * | 2010-12-23 | 2011-08-10 | 中国原子能科学研究院 | Nondestructive testing method for metal welding seam |
| CN102706890A (en) * | 2012-06-12 | 2012-10-03 | 中国南方航空工业(集团)有限公司 | Detection device and detection method of honeycomb brazing part |
Non-Patent Citations (4)
| Title |
|---|
| Carbon honeycomb grids for advanced lead-acid batteries. Part I: Proof of concept;Angel Kirchev et al.;《Journal of Power Sources》;20110612;第196卷;第8773-8788页 * |
| Microstructural evolution and mechanical properties of a nickel-based honeycomb sandwich;Qiuming Zhang et al.;《Material Characterization》;20091231;第60卷;第178-182页 * |
| 夹芯结构中的聚合物泡沫材料和蜂窝的比较;Altadt V et al.;《玻璃钢》;20021231(第2期);第12-21页 * |
| 高超声速飞行器两类典型防热材料的性能表征与评价;韩杰才等;《力学进展》;20091125;第39卷(第6期);第695-715页 * |
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