CN102866159A - Dyeing stripping method and dyeing stripping device for layer detection of hole forming of composite laminate plates - Google Patents
Dyeing stripping method and dyeing stripping device for layer detection of hole forming of composite laminate plates Download PDFInfo
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- CN102866159A CN102866159A CN2012102693142A CN201210269314A CN102866159A CN 102866159 A CN102866159 A CN 102866159A CN 2012102693142 A CN2012102693142 A CN 2012102693142A CN 201210269314 A CN201210269314 A CN 201210269314A CN 102866159 A CN102866159 A CN 102866159A
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Abstract
The invention discloses a dyeing stripping method and a dyeing stripping device for layer detection of hole forming of composite laminate plates. Barium sulfate is ground into nanoscale powder by a nanoscale grinding platform; barium sulfate powder is uniformly dispersed into diethyl ether by an ultrasonic dispersion machine to form penetrating fluid; the penetrating fluid is coated on hole walls by a penetrating fluid coating platform; a numerical-control constant temperature furnace damages a matrix; an electric coupling image sensor converts layered image information into digital information and transmits data; and an image processer processes layered digital information, and a hole wall layered three-dimensional model is generated. By the dyeing stripping method and the dyeing stripping device, requirements on equipment are low, the equipment used by a system is common instruments or devices, detection cost is low, layered damage conditions of layers of the composite laminate plates can be detected, and the layered three-dimensional model can be set up.
Description
Technical field
The present invention relates to composite laminated plate drilling defects detection field.
Background technology
In compound substance drill process experimental study and process optimization, the hole wall delamination damage is one of leading indicator of weighing the drilling quality, detect accurately, efficiently and at low cost the layering situation of each interlayer, to reducing the feasibility important in inhibiting of experimental study cost, checking process optimization scheme.
The composite laminated plate drilling layering detection technique of commonly using both at home and abroad at present has SEM detection method, optical microscope to detect method, ultrasonic C-scanning detection method, industry CT detection method etc.These layer detection methods have its limitation.SEM detection method and optical microscope detect the import and export layering situation that method can only detect the hole, what the ultrasonic C-scanning detection obtained is the comprehensive layering situation of whole thickness of slab, what the industry CT detection generally obtained is the comprehensive condition of several interlayers, does not all obtain the layering situation of each interlayer; Secondly, these several detection methods are strict to equipment requirement, and experimental cost is higher.
Document " Zhang Houjiang, Chen Wuyi, Chen Dingchang, the infiltration detection of carbon fibre composite boring layering, aero-manufacturing technology (2004) 78-80 " discloses a kind of chlorauride (molecular formula AuCl of composite laminated plate drilling layering
3HCl4H
2O) penetrating fluid detection method, diethyl ether solution with chlorauride carries out penetration dyeing to hole wall, in holding furnace, add the heat damage matrix pigmented section is peeled off respectively and measured to each layer of laminate, the testing result of the method has reflected the concrete condition of each interlayer lamination defect, has reached comparatively desirable detection effect.But because chlorauride fusing point lower (about 250 ℃), chlorauride melted before matrix destroyed, and may cause pigmented section to change in heating process; Chlorauride gold content higher (more than 47.8%) on the other hand, price are comparatively expensive, cause experimental cost higher.
In sum, the lossless detection method experimental costs such as SEM detection method commonly used, optical microscope detection method, ultrasonic C-scanning detection method, industry CT detection method are high, can not obtain the layering situation of each interlayer; Although and chlorauride penetrating fluid detection method can satisfy layering testing requirement in the experiment substantially, exist coloring agent and flow and the experimental cost problem.Therefore be necessary to invent a kind of new method, can detect accurately, efficiently and at low cost the layering situation of each interlayer of composite laminated plate hole wall.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of composite laminated plate drilling layer dyeing peels off detection method and sets up corresponding system, can detect exactly the layering situation of each interlayer after the composite laminated plate drilling, set up hole wall delamination damage stereoscopic model, reduce simultaneously the experimental cost that layering detects.
The technical solution adopted for the present invention to solve the technical problems may further comprise the steps:
(1) for composite laminated plate material properties to be detected, select inorganic coloring matter, the color that requires inorganic coloring matter is that white or glassy yellow, fusing point are higher than under matrix fail temperature, the matrix fail temperature and do not react with epoxy resin, generally selects sulfate, comprises barium sulphate (BaSO
4) and lead sulfate (PbSO
4).
(2) inorganic coloring matter is ground into powder, filters out nano grade inorganic dyeing powder.
(3) according to the ratio of the corresponding 20ml ether of 1g nano inorganic dyeing powder, with ultra-sonic dispersion method inorganic dyeing powder is evenly spread in the ether, form inorganic dye penetrant.
(4) inorganic dye penetrant evenly is coated on the hole wall of test plate (panel), room temperature was placed more than 10 minutes, again applied, and repetitive coatings operates more than 5 times, and room temperature was placed more than half an hour, and ether is volatilized naturally.
(5) will permeate good test plate (panel) keep suitable temperature (than matrix fail temperature high 50 ℃ ~ 100 ℃, be lower than the fiber destruction temperature), after matrix perfect combustion, test plate (panel) is taken out.
(6) carry out respectively the image data acquiring of each interlayer.
(7) carry out analysis of image data and process, adopt the threshold method split image, and carry out image outline and extract, calculate the also hierarchical information of memory image profile, comprise maximum gauge and contour area.
For realizing said method, the present invention also provides a composite laminated plate drilling layer dyeing to peel off detection system, comprises that nanoscale grinding plate, ultrasonic dispersion machine, penetrating fluid apply platform, digital control constant temperature stove and electric coupling imageing sensor and image processor.The nanoscale grinding plate is made nanometer grade powder with inorganic dyeing powder, ultrasonic dispersion machine evenly spreads to the nano grade inorganic powder that dyes to form penetrating fluid in the ether, penetrating fluid applies platform penetrating fluid is coated on the hole wall, the digital control constant temperature stove destroys matrix, the electric coupling imageing sensor converts the image information of layering numerical information to and transmits data, and image processor is finished the processing of layering numerical information and generated hole wall layered stereoscopic model.
Described nanoscale grinding plate is comprised of particle muller, nanoscale filter cloth, beaker, the particle muller is ground into powder inorganic coloring matter, powder is placed on nanoscale filter cloth central authorities, and the nanoscale filter cloth is placed on the beaker top, so that the powder collection that filters is in beaker.
Described ultrasonic dispersion machine comprises ultrasonic transmitter and test tube, and test tube places the ultrasonic transmitter areal coverage, and the potpourri of ether and inorganic dyeing powder is housed in the test tube.
Described penetrating fluid applies platform and comprises evaporating dish and hairbrush, glass cylinder, and glass cylinder places the test plate (panel) below, is used for supporting test plate (panel) and receiving unnecessary penetrating fluid.
Described digital control constant temperature stove comprises constant temperature oven and microcomputer, and the temperature sensor in constant temperature oven passes to computing machine with temperature signal, and the control program of computing machine generates steering order according to temperature signal and passes to constant temperature oven.
Described image processor is a computing machine that comprises image processing software, and image processing software can realize that the image threshold method is cut apart, image outline extracts, region area calculates, maximum gauge extracts and the function such as image information management.
The invention has the beneficial effects as follows: the present invention is low for equipment requirements, and the employed equipment of system all is common instrument or device, and testing cost is low; The delamination damage situation of each interlayer of composite laminated plate can be detected, the three-dimensional hierarchical model can be set up.
The present invention is further described below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is that composite laminated plate drilling layer dyeing is peeled off the detection system schematic diagram;
Fig. 2 is the layer dyeing area schematic;
Among the figure, 1-nanoscale grinding plate; 2-particle muller; 3-nanoscale filter cloth; The 4-beaker; The ultrasonic dispersion machine of 5-; The 6-ultrasonic transmitter; The 7-test tube; The 8-penetrating fluid applies platform; 9-evaporating dish and hairbrush; The 10-test plate (panel); The 11-glass cylinder; 12-digital control constant temperature stove; The 13-constant temperature oven; The 14-microcomputer; 15-electric coupling imageing sensor; The 16-image processor; The 17-fibrous bundle; The 18-hole; 19-layer dyeing zone.
Embodiment
The invention belongs to composite laminated plate drilling defects detection field, relate to a kind of dyeing for composite laminated plate drilling layering and peel off detection method and system, the layering that is applicable in the compound substance drill process experimental study detects.
The method embodiment:
(1) CFRP material of test piece to be detected is T300/E-44, is of a size of 125mm * 30mm * 5mm, and it is the hole of 6mm that the plate middle position has diameter, according to material of test piece, selects barium sulphate (molecular formula BaSO
4) as coloring matter.
(2) in the particle muller with barium sulphate (molecular formula BaSO
4) be ground into powder, screen with the nanoscale filter cloth, obtain barium sulphate nano level powder.
(3) 1g barium sulphate powder input is equipped with in the test tube of 20ml diethyl ether solution, in ultrasonic dispersion machine, barium sulphate is evenly spread in the ether, form barium sulphate powder penetrating fluid.
(4) barium sulphate powder penetrating fluid is coated on the hole wall of test plate (panel), places more than ten minutes, again apply, repetitive coatings operates more than 5 times, and test plate (panel) was placed the ventilating and cooling place one hour.
(5) will permeate good test plate (panel) and place constant temperature oven to heat, keep 400 ℃ 20 minutes, after matrix perfect combustion, test plate (panel) is taken out.
(6) differentiate each fibrage according to the arrangement mode of fiber, with the every one deck of tweezers successively strip off, and carry out respectively the image data acquiring of interlayer.
(7) carry out analysis of image data and process, calculate the delamination area area, extract maximum layering diameter, determine the angle of maximum layering diameter, set up every layer data sign, the individual-layer data of each layer of storage administration is set up hole wall delamination damage stereoscopic model.
The System Implementation example:
A composite laminated plate drilling layer dyeing is peeled off detection system, comprises that nanoscale grinding plate 1, ultrasonic dispersion machine 5, penetrating fluid apply platform 8, digital control constant temperature stove 12, electric coupling imageing sensor 15 and 16 6 parts of image processor.Nanoscale grinding plate 1 is used for barium sulphate is made nanometer grade powder, ultrasonic dispersion machine 5 is used for that the barium sulphate powder is evenly spread to ether and forms penetrating fluid, penetrating fluid applies platform 8 and is used for penetrating fluid is coated in hole wall, digital control constant temperature stove 12 is used for matrix is destroyed, electric coupling imageing sensor 15 is used for the image information of layering is converted to numerical information and transmits data, and image processor 16 is used for the processing of layering numerical information and generates hole wall layered stereoscopic model.
Described nanoscale grinding plate 1 is comprised of particle muller 2, nanoscale filter cloth 3, beaker 4, and nanoscale filter cloth 3 is placed on beaker 4 tops, so that the powder collection that filters is in beaker 4.
Described ultrasonic dispersion machine 5 mainly comprises ultrasonic transmitter 6 and test tube 7, and test tube 7 places the ultrasonic areal coverage of ultrasonic transmitter 6, and the potpourri of ether and inorganic dyeing powder is housed in the test tube 7.
Described penetrating fluid applies platform 8 and comprises evaporating dish and hairbrush 9, glass cylinder 11, and glass cylinder 11 places test plate (panel) 10 belows, is used for supporting test plate (panel) 10 and receiving unnecessary penetrating fluid.
Described digital control constant temperature stove 12 comprises constant temperature oven 13 and microcomputer 14, and the temperature sensor in constant temperature oven 13 passes to microcomputer 14 with temperature signal, and the control program of microcomputer 14 generates steering order according to temperature signal and passes to constant temperature oven 13.
Described image processor 16 is computing machines that comprise image processing software, and image processing software can realize that the image threshold method is cut apart, image outline extracts, region area calculates, maximum gauge extracts and the function such as image information management.
Claims (7)
1. the dyeing stripping means that composite laminated plate drilling layering detects is characterized in that comprising the steps:
(1) for composite laminated plate material properties to be detected, select inorganic coloring matter, the color that requires inorganic coloring matter is that white or glassy yellow, fusing point are higher than under matrix fail temperature, the matrix fail temperature and do not react with epoxy resin;
(2) inorganic coloring matter is ground into powder, filters out nano grade inorganic dyeing powder;
(3) according to the ratio of the corresponding 20ml ether of 1g nano inorganic dyeing powder, with ultra-sonic dispersion method inorganic dyeing powder is evenly spread in the ether, form inorganic dye penetrant;
(4) inorganic dye penetrant evenly is coated on the hole wall of test plate (panel), room temperature was placed more than 10 minutes, again applied, and repetitive coatings operates more than 5 times, and room temperature was placed more than half an hour, and ether is volatilized naturally;
(5) will permeate good test plate (panel) and keep suitable temperature, described suitable temperature refer to than matrix fail temperature high 50 ℃ ~ 100 ℃ and be lower than the fiber destruction temperature, after matrix perfect combustion, test plate (panel) is taken out;
(6) carry out respectively the image data acquiring of each interlayer;
(7) carry out analysis of image data and process, adopt the threshold method split image, and carry out image outline and extract, calculate the also hierarchical information of memory image profile, comprise maximum gauge and contour area.
2. the dyeing stripping means that detects of composite laminated plate drilling layering according to claim 1, it is characterized in that: described inorganic coloring matter is selected sulfate, comprises barium sulphate and lead sulfate.
3. device of realizing the dyeing stripping means that the described composite laminated plate drilling of claim 1 layering detects, comprise the nanoscale grinding plate, ultrasonic dispersion machine, penetrating fluid applies platform, digital control constant temperature stove and electric coupling imageing sensor and image processor, it is characterized in that: the nanoscale grinding plate is made nanometer grade powder with inorganic dyeing powder, ultrasonic dispersion machine evenly spreads to the nano grade inorganic powder that dyes to form penetrating fluid in the ether, penetrating fluid applies platform penetrating fluid is coated on the hole wall, the digital control constant temperature stove destroys matrix, the electric coupling imageing sensor converts the image information of layering numerical information to and transmits data, and image processor is finished the processing of layering numerical information and generated hole wall layered stereoscopic model.
4. the dyeing stripping off device that detects of composite laminated plate drilling layering according to claim 3, it is characterized in that: described nanoscale grinding plate is comprised of particle muller, nanoscale filter cloth and beaker, the particle muller is ground into powder inorganic coloring matter, powder is placed on nanoscale filter cloth central authorities, the nanoscale filter cloth is placed on the beaker top, so that the powder collection that filters is in beaker.
5. the dyeing stripping off device that detects of composite laminated plate drilling layering according to claim 3, it is characterized in that: described ultrasonic dispersion machine comprises ultrasonic transmitter and test tube, test tube places the ultrasonic transmitter areal coverage, and the potpourri of ether and inorganic dyeing powder is housed in the test tube.
6. the dyeing stripping off device that detects of composite laminated plate drilling layering according to claim 3, it is characterized in that: described penetrating fluid applies platform and comprises evaporating dish and hairbrush, glass cylinder, glass cylinder places the test plate (panel) below, is used for supporting test plate (panel) and receiving unnecessary penetrating fluid.
7. the dyeing stripping off device that detects of composite laminated plate drilling layering according to claim 3, it is characterized in that: described digital control constant temperature stove comprises constant temperature oven and microcomputer, temperature sensor in constant temperature oven passes to computing machine with temperature signal, and the control program of computing machine generates steering order according to temperature signal and passes to constant temperature oven.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277661A (en) * | 2015-11-02 | 2016-01-27 | 西北工业大学 | Delamination damage analyzing method of composite material laminated plate interference bolt mounting process |
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| JP2007320046A (en) * | 2006-05-30 | 2007-12-13 | Optrex Corp | Inspection method of laminated plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277661A (en) * | 2015-11-02 | 2016-01-27 | 西北工业大学 | Delamination damage analyzing method of composite material laminated plate interference bolt mounting process |
| CN105277661B (en) * | 2015-11-02 | 2017-03-22 | 西北工业大学 | Delamination damage analyzing method of composite material laminated plate interference bolt mounting process |
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