CN114166938A - Aramid paper honeycomb internal quality detection method - Google Patents
Aramid paper honeycomb internal quality detection method Download PDFInfo
- Publication number
- CN114166938A CN114166938A CN202111230710.XA CN202111230710A CN114166938A CN 114166938 A CN114166938 A CN 114166938A CN 202111230710 A CN202111230710 A CN 202111230710A CN 114166938 A CN114166938 A CN 114166938A
- Authority
- CN
- China
- Prior art keywords
- composite material
- honeycomb
- quality
- carbon fiber
- internal quality
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 239000004760 aramid Substances 0.000 title claims abstract description 13
- 229920003235 aromatic polyamide Polymers 0.000 title claims abstract description 13
- 239000002131 composite material Substances 0.000 claims abstract description 20
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 15
- 239000004917 carbon fiber Substances 0.000 claims abstract description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003292 glue Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000000853 adhesive Substances 0.000 claims abstract description 4
- 230000001070 adhesive effect Effects 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000003384 imaging method Methods 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000002950 deficient Effects 0.000 abstract 1
- 241000264877 Hippospongia communis Species 0.000 description 26
- 229920000784 Nomex Polymers 0.000 description 3
- 239000004763 nomex Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/043—Analysing solids in the interior, e.g. by shear waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
- G01N29/0609—Display arrangements, e.g. colour displays
- G01N29/0645—Display representation or displayed parameters, e.g. A-, B- or C-Scan
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/28—Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0231—Composite or layered materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses an aramid paper honeycomb internal quality detection method, which belongs to the technical field of composite material quality detection and comprises the following steps: step 1: the carbon fiber composite material is qualified through ultrasonic detection after being cured and molded, and the composite material and the honeycomb core are co-cured and connected together through a glue film to form a honeycomb-skin glue joint part with an opening at one side; wrapping the adhesive connecting piece by using a vacuum bag, sealing the periphery by using a putty strip, and vacuumizing; and coating a layer of water or oil on the surface of the carbon fiber composite material of the cementing part. The method can accurately position the defect position, detect the joint quality of the honeycomb-skin with an opening at one side between the manufacturing processes, repair the defect in time if the detection result is the quality defect, continue to glue the skin if the detection quality is qualified, perform ultrasonic C-scanning on the product after the finished product is finished, and prepare for judging the defect position if the quality is defective.
Description
Technical Field
The invention relates to an aramid paper honeycomb internal quality detection method, and belongs to the technical field of composite material quality detection.
Background
The composite material honeycomb sandwich structure is a structural form with high specific stiffness performance efficiency, is widely applied to aerospace aircraft structures, and is generally formed by linking a carbon fiber composite material and a honeycomb core together in a cementing mode.
At present, when the quality of the honeycomb sandwich structure is subjected to nondestructive testing, the quality of the honeycomb sandwich structure is generally finished by ultrasonic C scanning after the production of the sandwich structure is finished, but the sound attenuation of sound waves in a multi-layer glue joint structure is severe, so that the glue joint quality of an inner skin honeycomb core of the multi-layer honeycomb structure is difficult to detect, the defect position cannot be accurately positioned, meanwhile, the ultrasonic testing needs couplants such as water spraying, and the like, and Nomex honeycombs used in the composite material honeycomb sandwich structure cannot splash water, so that the ultrasonic testing cannot be used for the glue joint quality detection of the skin-honeycomb core on the site of a manufacturing process, and further the glue joint quality of the honeycomb-skin with an opening on one side between the manufacturing processes cannot be detected.
Disclosure of Invention
The invention mainly aims to solve the defects of the prior art and provides a method for detecting the internal quality of an aramid paper honeycomb.
The purpose of the invention can be achieved by adopting the following technical scheme:
the method for detecting the internal quality of the aramid paper honeycomb comprises the following steps:
step 1: the carbon fiber composite material is qualified through ultrasonic detection after being cured and molded, and the composite material and the honeycomb core are co-cured and connected together through a glue film to form a honeycomb-skin glue joint part with an opening at one side;
step 2: wrapping the adhesive connecting piece by using a vacuum bag, sealing the periphery by using a putty strip, and vacuumizing;
and step 3: coating a layer of water or oil on the surface of the carbon fiber composite material of the cementing part;
and 4, step 4: fixing the treated cementing part on a C-scan machine for ultrasonic C-scan, adjusting the sensitivity of ultrasonic waves, detecting the internal quality, and imaging the detection result on a computer.
Preferably, the degree of vacuum after the evacuation in step 2 is-0.9 MPa.
Preferably, in step 3, a layer of water or oil is applied to wet the surface of the carbon fiber composite material, so that the vacuum bag and the carbon fiber plate are in close contact without air bubbles.
The invention has the beneficial technical effects that: according to the method for detecting the internal quality of the aramid paper honeycomb, the defect position can be accurately positioned, the connection quality of the honeycomb with an opening on one side between the manufacturing processes and the skin is detected, if the detection result is the quality defect, the defect can be repaired in time, if the detection quality is qualified, the skin can be continuously bonded, after the finished product is finished, ultrasonic C scanning is carried out on the product, and if the quality problem exists, the defect position can be prepared to be judged; the honeycomb is wrapped in a vacuum bag in a vacuumizing mode, so that the Nomex honeycomb can be protected from being splashed by water, and the quality of the honeycomb is ensured.
Detailed Description
In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail with reference to the following examples, but the embodiments of the present invention are not limited thereto.
The embodiment provides an aramid paper honeycomb internal quality detection method, which comprises the following steps:
step 1: the carbon fiber composite material is qualified through ultrasonic detection after being cured and molded, and the composite material and the honeycomb core are co-cured and connected together through a glue film to form a honeycomb-skin glue joint part with an opening at one side;
step 2: wrapping the adhesive connecting piece by using a vacuum bag, sealing the periphery by using a putty strip, and vacuumizing;
and step 3: coating a layer of water or oil on the surface of the carbon fiber composite material of the cementing part;
and 4, step 4: fixing the treated cementing part on a C-scan machine for ultrasonic C-scan, adjusting the sensitivity of ultrasonic waves, detecting the internal quality, and imaging the detection result on a computer.
The degree of vacuum after evacuation in step 2 was-0.9 MPa.
In step 3, a layer of water or oil is coated to wet the surface of the carbon fiber composite material, so that the vacuum bag is in close contact with the carbon fiber plate without bubbles.
In summary, in this embodiment, according to the method for detecting the internal quality of an aramid paper honeycomb of this embodiment, the method for detecting the internal quality of an aramid paper honeycomb provided by this embodiment can accurately locate a defect position, detect the quality of the connection between a honeycomb and a skin with an opening on one side between manufacturing processes, if the detection result is a quality defect, repair the defect in time, if the detection quality is qualified, continue to glue the skin, perform ultrasonic C-scan on the product after the finished product is finished, and if there is a quality problem, prepare to determine the defect position; the honeycomb is wrapped in a vacuum bag in a vacuumizing mode, so that the Nomex honeycomb can be protected from being splashed by water, and the quality of the honeycomb is ensured.
The above description is only for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution of the present invention and its conception within the scope of the present invention.
Claims (3)
1. The method for detecting the internal quality of the aramid paper honeycomb is characterized by comprising the following steps of:
step 1: the carbon fiber composite material is qualified through ultrasonic detection after being cured and molded, and the composite material and the honeycomb core are co-cured and connected together through a glue film to form a honeycomb-skin glue joint part with an opening at one side;
step 2: wrapping the adhesive connecting piece by using a vacuum bag, sealing the periphery by using a putty strip, and vacuumizing;
and step 3: coating a layer of water or oil on the surface of the carbon fiber composite material of the cementing part;
and 4, step 4: fixing the treated cementing part on a C-scan machine for ultrasonic C-scan, adjusting the sensitivity of ultrasonic waves, detecting the internal quality, and imaging the detection result on a computer.
2. The method for detecting the internal quality of the aramid paper honeycomb according to claim 1, wherein the vacuum degree after vacuumizing in the step 2 is-0.9 Mpa.
3. The method for detecting the internal quality of the aramid paper honeycomb according to claim 1, wherein in the step 3, a layer of water or oil is coated to wet the surface of the carbon fiber composite material, so that the vacuum bag is in close contact with the carbon fiber plate and no air bubbles exist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111230710.XA CN114166938A (en) | 2021-10-22 | 2021-10-22 | Aramid paper honeycomb internal quality detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111230710.XA CN114166938A (en) | 2021-10-22 | 2021-10-22 | Aramid paper honeycomb internal quality detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114166938A true CN114166938A (en) | 2022-03-11 |
Family
ID=80477382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111230710.XA Pending CN114166938A (en) | 2021-10-22 | 2021-10-22 | Aramid paper honeycomb internal quality detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114166938A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003254953A (en) * | 2002-03-05 | 2003-09-10 | Hitachi Kenki Fine Tech Co Ltd | Ultrasonic image inspection device |
| US20040103721A1 (en) * | 2002-12-03 | 2004-06-03 | The Boeing Company | System and method for the inspection of adhesive |
| DE102004059086A1 (en) * | 2004-12-08 | 2006-06-14 | Robert Bosch Gmbh | Specimen testing device, e.g. for semiconductor, has measuring device, which guides measuring head over diaphragm for low attenuating and reflection-free injecting of scanning medium into specimen, for scanning specimen |
| CN104280460A (en) * | 2014-11-03 | 2015-01-14 | 南昌航空大学 | Ultrasonic water logging detection method of composite material |
| CN104990982A (en) * | 2015-07-31 | 2015-10-21 | 中航复合材料有限责任公司 | Automatic scanning-based cellular core sandwich structure ultrasonic imaging detection method |
| CN105548214A (en) * | 2015-12-04 | 2016-05-04 | 中航复合材料有限责任公司 | Defect discrimination method for honeycomb core-skin connection quality optical imaging detection |
| CN108318579A (en) * | 2017-12-26 | 2018-07-24 | 中国航空工业集团公司基础技术研究院 | A kind of honeycomb co-curing structure defect ultrasonic A sweep recognition methods and device |
| CN108844978A (en) * | 2018-05-29 | 2018-11-20 | 沈阳飞机工业（集团）有限公司 | It is a kind of for detecting the new method of honeycomb interior defect |
| CN112147218A (en) * | 2019-06-28 | 2020-12-29 | 中国商用飞机有限责任公司 | Air coupling ultrasonic detection method for vertical honeycomb splicing interface |
| CN112454938A (en) * | 2020-09-30 | 2021-03-09 | 成都飞机工业（集团）有限责任公司 | Forming method of carbon fiber honeycomb sandwich composite material member |
-
2021
- 2021-10-22 CN CN202111230710.XA patent/CN114166938A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003254953A (en) * | 2002-03-05 | 2003-09-10 | Hitachi Kenki Fine Tech Co Ltd | Ultrasonic image inspection device |
| US20040103721A1 (en) * | 2002-12-03 | 2004-06-03 | The Boeing Company | System and method for the inspection of adhesive |
| DE102004059086A1 (en) * | 2004-12-08 | 2006-06-14 | Robert Bosch Gmbh | Specimen testing device, e.g. for semiconductor, has measuring device, which guides measuring head over diaphragm for low attenuating and reflection-free injecting of scanning medium into specimen, for scanning specimen |
| CN104280460A (en) * | 2014-11-03 | 2015-01-14 | 南昌航空大学 | Ultrasonic water logging detection method of composite material |
| CN104990982A (en) * | 2015-07-31 | 2015-10-21 | 中航复合材料有限责任公司 | Automatic scanning-based cellular core sandwich structure ultrasonic imaging detection method |
| CN105548214A (en) * | 2015-12-04 | 2016-05-04 | 中航复合材料有限责任公司 | Defect discrimination method for honeycomb core-skin connection quality optical imaging detection |
| CN108318579A (en) * | 2017-12-26 | 2018-07-24 | 中国航空工业集团公司基础技术研究院 | A kind of honeycomb co-curing structure defect ultrasonic A sweep recognition methods and device |
| CN108844978A (en) * | 2018-05-29 | 2018-11-20 | 沈阳飞机工业（集团）有限公司 | It is a kind of for detecting the new method of honeycomb interior defect |
| CN112147218A (en) * | 2019-06-28 | 2020-12-29 | 中国商用飞机有限责任公司 | Air coupling ultrasonic detection method for vertical honeycomb splicing interface |
| CN112454938A (en) * | 2020-09-30 | 2021-03-09 | 成都飞机工业（集团）有限责任公司 | Forming method of carbon fiber honeycomb sandwich composite material member |
Non-Patent Citations (2)
| Title |
|---|
| 姜作义 等: "《纤维-树脂复合材料技术与应用》", 31 October 1990, 中国标准出版社, pages: 132 - 135 * |
| 陈祥宝 等: "《树脂基复合材料制造技术》", 31 January 2000, 化学工业出版社, pages: 149 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6843130B2 (en) | System and method for the inspection of adhesive | |
| US8926786B1 (en) | Composite panel and method of manufacturing the same | |
| Naik et al. | A new method for joining metal and polymer sheets in sandwich panels for highly improved interface strength | |
| CN114166938A (en) | Aramid paper honeycomb internal quality detection method | |
| Yilmaz et al. | Comparison of different non-destructive testing techniques for bonding quality evaluation | |
| CN112213399A (en) | Method for detecting gluing quality | |
| CN102426200A (en) | Covering and sandwiched core gluing structure defect contrast sample | |
| Newman | Aerospace NDT with advanced laser shearography | |
| US20140158245A1 (en) | Method of making a flexible delay line, a flexible delay line and a transducer | |
| CN108799846B (en) | Nuclear power station pressure pipeline acoustic emission detector and method | |
| KR20160112914A (en) | Method and assembly for inspecting a partially cured repair patch prior to installation | |
| US7935200B1 (en) | Process development protocol and vacuum bag process for carbon-epoxy prepreg production | |
| US11333632B2 (en) | Apparatus and a method for ultrasonic inspection of multi-layered structures | |
| US7552641B2 (en) | Through-transmission ultrasonic inspection system and testing methods | |
| JP2003177117A (en) | Transmission method of dry contact high-frequency ultrasonic wave and apparatus therefor, and flaw detection method using dry contact high-frequency ultrasonic wave and apparatus therefor | |
| RU2806241C1 (en) | Method for assessing quality of technology for manufacturing samples from composite materials for developing technology of producing products from composite materials | |
| CN114166939A (en) | Method for detecting internal quality of composite material honeycomb sandwich structural member | |
| Abdellaoui et al. | Failure mechanisms of fiber composites | |
| CN112147217A (en) | Water spray penetration type ultrasonic detection method for vertical honeycomb splicing interface | |
| Komsky | Modular dry-coupled ultrasonic probes for field inspections of multilayered aircraft structures | |
| CN213022979U (en) | Panel water logging ultrasonic detection frock | |
| CN112719660A (en) | Method for manufacturing multilayer binding type high-pressure container | |
| CN113324812A (en) | Weak-adhesion controllable defect test piece and manufacturing technology and nondestructive testing method thereof | |
| Carboni et al. | A Structural Integrity Approach for the Hybrid Adhesive Bonded Joints of a Smart Wheel for Racing Motorcycles | |
| CN115384083A (en) | Method for manufacturing full-opening composite material shell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |