CN102866159B - 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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- CN102866159B CN102866159B CN201210269314.2A CN201210269314A CN102866159B CN 102866159 B CN102866159 B CN 102866159B CN 201210269314 A CN201210269314 A CN 201210269314A CN 102866159 B CN102866159 B CN 102866159B
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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, hole wall delamination damage is one of leading indicator of weighing 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.
Conventional composite laminated plate drilling layering detection technique has SEM detection method, optical microscope to detect method, ultrasonic C-scanning detection method, industry CT detection method etc. both at home and abroad at present.These layer detection methods have its limitation.SEM detection method and optical microscope detection method can only detect the import and export layering situation in hole, what ultrasonic C-scanning detection obtained is the comprehensive layering situation of whole thickness of slab, what 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, hole wall is carried out to penetration dyeing with the diethyl ether solution of chlorauride, in holding furnace, add heat damage matrix and peel off respectively and measure pigmented section by each laminate layer, the testing result of the method has reflected the concrete condition of each interlayer lamination defect, has reached comparatively desirable detection effect.But due to chlorauride fusing point lower (250 DEG C of left and right), before matrix destroys, chlorauride melts, and may in heating process, cause pigmented section to change; Chlorauride gold content higher (more than 47.8%) on the other hand, price is comparatively expensive, causes experimental cost higher.
In sum, the lossless detection method experimental costs such as conventional SEM detection method, 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 meet layering testing requirement in experiment substantially, exist coloring agent and flow and 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 the 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 composite laminated plate drilling, set up hole wall delamination damage stereoscopic model, reduce the experimental cost that layering detects simultaneously.
The technical solution adopted for the present invention to solve the technical problems comprises the following steps:
(1) for composite laminated plate material properties to be detected, select inorganic coloring matter, the color that requires inorganic coloring matter be white or glassy yellow, fusing point higher than not reacting with epoxy resin under matrix fail temperature, matrix fail temperature, generally select sulfate, comprise 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, inorganic dyeing powder is evenly spread in ether with ultra-sonic dispersion method, form inorganic dye penetrant.
(4) inorganic dye penetrant is evenly coated on the hole wall of test plate (panel), room temperature is placed more than 10 minutes, again applies, and repetitive coatings operates more than 5 times, and room temperature volatilizees ether more than placing half an hour naturally.
(5) test plate (panel) that permeated is kept suitable temperature (than matrix fail temperature high 50 DEG C ~ 100 DEG C, lower than 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 processing, adopt threshold method to cut apart image, and carry out image outline extraction, 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.Inorganic dyeing powder is made nanometer grade powder by nanoscale grinding plate, ultrasonic dispersion machine evenly spreads to the nano grade inorganic powder that dyes in ether, to form penetrating fluid, penetrating fluid applies platform penetrating fluid is coated on hole wall, digital control constant temperature stove destroys matrix, electric coupling imageing sensor converts the image information of layering numerical information to and transmits data, and image processor completes the processing of layering numerical information and generates hole wall layered stereoscopic model.
Described nanoscale grinding plate is made up of particle muller, nanoscale filter cloth, beaker, particle muller is ground into powder inorganic coloring matter, powder is placed on nanoscale filter cloth central authorities, and nanoscale filter cloth is placed on beaker top, makes the powder collection filtering in beaker.
Described ultrasonic dispersion machine comprises ultrasonic transmitter and test tube, and test tube is placed in ultrasonic transmitter areal coverage, and the potpourri of ether and inorganic dyeing powder is housed in test tube.
Described penetrating fluid applies platform and comprises evaporating dish and hairbrush, glass cylinder, and glass cylinder is placed in test plate (panel) below, for supporting test plate (panel) and receiving unnecessary penetrating fluid.
Described digital control constant temperature stove comprises constant temperature oven and microcomputer, and temperature signal is passed to computing machine by the temperature sensor in constant temperature oven, 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 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, the equipment that system is used is all common instrument or device, and testing cost is low; The delamination damage situation of the each interlayer of composite laminated plate can be detected, three-dimensional hierarchical model can be set up.
Below in conjunction with drawings and Examples, the present invention is further described.
Brief description of the drawings
Fig. 1 is that composite laminated plate drilling layer dyeing is peeled off detection system schematic diagram;
Fig. 2 is layer dyeing area schematic;
In figure, 1-nanoscale grinding plate; 2-particle muller; 3-nanoscale filter cloth; 4-beaker; The ultrasonic dispersion machine of 5-; 6-ultrasonic transmitter; 7-test tube; 8-penetrating fluid applies platform; 9-evaporating dish and hairbrush; 10-test plate (panel); 11-glass cylinder; 12-digital control constant temperature stove; 13-constant temperature oven; 14-microcomputer; 15-electric coupling imageing sensor; 16-image processor; 17-fibrous bundle; 18-hole; 19-layer dyeing region.
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 being applicable in compound substance drill process experimental study detects.
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 plate middle position has diameter, according to material of test piece, selects barium sulphate (molecular formula BaSO
4) as coloring matter.
(2) in particle muller by barium sulphate (molecular formula BaSO
4) be ground into powder, screen with nanoscale filter cloth, obtain barium sulphate nano level powder.
(3) 1g barium sulphate powder is dropped into and is equipped with in the test tube of 20ml diethyl ether solution, in ultrasonic dispersion machine, barium sulphate is evenly spread in 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) is placed in to ventilating and cooling place one hour.
(5) test plate (panel) having permeated is placed in to constant temperature oven and heats, keep 400 DEG C 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 processing, calculate delamination area area, extract maximum layering diameter, determine the angle of maximum layering diameter, set up every layer data mark, the individual-layer data that storage administration is each layer, sets up hole wall delamination damage stereoscopic model.
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 for making nanometer grade powder by barium sulphate, ultrasonic dispersion machine 5 forms penetrating fluid for barium sulphate powder is evenly spread to ether, penetrating fluid applies platform 8 for penetrating fluid is coated in to hole wall, digital control constant temperature stove 12 is for destroying matrix, electric coupling imageing sensor 15 is for the image information of layering is converted to numerical information and transmits data, and image processor 16 is for the processing of layering numerical information and generate hole wall layered stereoscopic model.
Described nanoscale grinding plate 1 is made up of particle muller 2, nanoscale filter cloth 3, beaker 4, and nanoscale filter cloth 3 is placed on beaker 4 tops, makes the powder collection filtering in beaker 4.
Described ultrasonic dispersion machine 5 mainly comprises ultrasonic transmitter 6 and test tube 7, and test tube 7 is placed in the ultrasonic areal coverage of ultrasonic transmitter 6, and the potpourri of ether and inorganic dyeing powder is housed in test tube 7.
Described penetrating fluid applies platform 8 and comprises evaporating dish and hairbrush 9, glass cylinder 11, and glass cylinder 11 is placed in test plate (panel) 10 belows, 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 temperature signal is passed to microcomputer 14 by the temperature sensor in constant temperature oven 13, 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 image threshold method is cut apart, image outline extracts, region area calculates, maximum gauge extracts and the function such as image information management.
Claims (6)
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 barium sulphate or lead sulfate as inorganic coloring matter;
(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, inorganic dyeing powder is evenly spread in ether with ultra-sonic dispersion method, form inorganic dye penetrant;
(4) inorganic dye penetrant is evenly coated on the hole wall of test plate (panel), room temperature is placed more than 10 minutes, again applies, and repetitive coatings operates more than 5 times, and room temperature volatilizees ether more than placing half an hour naturally;
(5) test plate (panel) that permeated is kept to suitable temperature, described suitable temperature refer to than matrix fail temperature high 50 DEG C～100 DEG C and lower than 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 processing, adopt threshold method to cut apart image, and carry out image outline extraction, calculate the also hierarchical information of memory image profile, comprise maximum gauge and contour area.
2. realize the device of the dyeing stripping means that composite laminated plate drilling layering detects described in claim 1 for one kind, comprise 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: inorganic dyeing powder is made nanometer grade powder by nanoscale grinding plate, ultrasonic dispersion machine evenly spreads to the nano grade inorganic powder that dyes in ether, to form penetrating fluid, penetrating fluid applies platform penetrating fluid is coated on hole wall, digital control constant temperature stove destroys matrix, electric coupling imageing sensor converts the image information of layering numerical information to and transmits data, image processor completes the processing of layering numerical information and generates hole wall layered stereoscopic model.
3. the dyeing stripping off device that composite laminated plate drilling layering according to claim 2 detects, it is characterized in that: described nanoscale grinding plate is made up of particle muller, nanoscale filter cloth and beaker, particle muller is ground into powder inorganic coloring matter, powder is placed on nanoscale filter cloth central authorities, nanoscale filter cloth is placed on beaker top, makes the powder collection filtering in beaker.
4. the dyeing stripping off device that composite laminated plate drilling layering according to claim 2 detects, it is characterized in that: described ultrasonic dispersion machine comprises ultrasonic transmitter and test tube, test tube is placed in ultrasonic transmitter areal coverage, and the potpourri of ether and inorganic dyeing powder is housed in test tube.
5. the dyeing stripping off device that composite laminated plate drilling layering according to claim 2 detects, it is characterized in that: described penetrating fluid applies platform and comprises evaporating dish and hairbrush, glass cylinder, glass cylinder is placed in test plate (panel) below, for supporting test plate (panel) and receiving unnecessary penetrating fluid.
6. the dyeing stripping off device that composite laminated plate drilling layering according to claim 2 detects, it is characterized in that: described digital control constant temperature stove comprises constant temperature oven and microcomputer, temperature signal is passed to computing machine by temperature sensor in constant temperature oven, and the control program of computing machine generates steering order according to temperature signal and passes to constant temperature oven.
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| CN102494998A (en) * | 2011-11-28 | 2012-06-13 | 哈尔滨工业大学 | Method for measuring combination strength of aluminum film of film aluminum steel composite board and steel substrate |
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| JP3117874B2 (en) * | 1994-06-06 | 2000-12-18 | 東洋鋼鈑株式会社 | Method and apparatus for detecting degree of crystal orientation of resin film in laminate plate |
| JP2007320046A (en) * | 2006-05-30 | 2007-12-13 | Optrex Corp | Inspection method of laminated plate |
| JP2011183710A (en) * | 2010-03-09 | 2011-09-22 | Nisshinbo Mechatronics Inc | Method for measuring crosslinking density of test target, method for setting condition of crosslinking density of test target, method for lamination treatment of lamination processed product, instrument for measuring crosslinking density of test target, and device for adjusting crosslinking density of test target |
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| CN101571514A (en) * | 2009-06-16 | 2009-11-04 | 北京理工大学 | Ultrasonic guided wave detection technology for positioning defects of composite laminated plate |
| CN102494998A (en) * | 2011-11-28 | 2012-06-13 | 哈尔滨工业大学 | Method for measuring combination strength of aluminum film of film aluminum steel composite board and steel substrate |
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| 《碳纤维复合材料钻孔分层的渗透检测》;张厚江等;《航空制造技术》;20041231(第12期);第78-80页 * |
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