CN109142396A - A kind of layering of carbon fiber winding shell, debonding defect detecting appraisal method - Google Patents
A kind of layering of carbon fiber winding shell, debonding defect detecting appraisal method Download PDFInfo
- Publication number
- CN109142396A CN109142396A CN201811004606.7A CN201811004606A CN109142396A CN 109142396 A CN109142396 A CN 109142396A CN 201811004606 A CN201811004606 A CN 201811004606A CN 109142396 A CN109142396 A CN 109142396A
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- fiber winding
- shell
- winding shell
- transillumination
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/03—Investigating materials by wave or particle radiation by transmission
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/10—Different kinds of radiation or particles
- G01N2223/101—Different kinds of radiation or particles electromagnetic radiation
- G01N2223/1016—X-ray
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/60—Specific applications or type of materials
- G01N2223/646—Specific applications or type of materials flaws, defects
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)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention discloses a kind of layerings of carbon fiber winding shell, debonding defect detecting appraisal method, and this method comprises the following steps: 1) instructing machine；2) detection parameters are arranged；3) planar array detector corrects；4) transillumination arrange, x-ray source, the transillumination position of carbon fiber winding shell, planar array detector central area be located along the same line；5) shell transillumination direction determines, the central beam of X-ray beam is parallel with the shell radial direction of carbon fiber winding shell and vertical with its axial direction when transillumination；6) shell detects, and carries out integral noise reduction process using the detection system of X-ray production apparatus, the static digital images after obtaining integral noise reduction；7) defect location；8) defect property is evaluated.The method of the present invention have many advantages, such as testing result it is intuitive, can quantitative analysis, depth of defect can be positioned, greatly improve the reliability and safety in utilization of carbon fiber winding shell.
Description
Technical field
The present invention relates to technical field of nondestructive testing, examine in particular to a kind of layering of carbon fiber winding shell, debonding defect
Survey assessment method.
Background technique
High-performance carbon fibre composite material with high specific strength, specific modulus height, dimensional stability and material due to that can design
Property the features such as so that carbon fiber winding method manufacture shell have become important development direction.Due to the anisotropic of composite material,
The features such as nonuniform organization, detects conventional detection technique to it and does not have complete validity, testing result it is reliable
Property is low.
Carbon fiber winding shell is the carbon fiber winding shell using wound and solidified forms on core model after carbon fiber immersion resin
Body can generate the defects of layering, unsticking during wound and solidified, and lamination defect refers specifically to the carbon of carbon fiber winding shell
Fiber winding layer position, layering refer to the separation that the layer of carbon fiber winding layer and interlayer occur, and debonding defect refers specifically to carbon
The carbon fiber winding layer of fiber winding shell and insulating rubber bonding site, unsticking refer to carbon fiber winding layer and insulating rubber layer
The defects of separation of bonding interface, layering, unsticking, will have a direct impact on the safety in utilization of shell.To ensure product quality, mention
The safety in utilization of high-carbon fiber winding shell, it is necessary to carbon fiber winding shell carried out using effective detection technique means
Whole quality control.
X-ray detection is complicated interaction to occur with substance during penetrating object using ray, because inhaling
It receives and scatters and its intensity is made to generate decaying.The attenuation change of intensity and the attenuation coefficient (such as: material density) of object to be detected
It is related to the thickness that ray passes through in substance.When tested when defect is locally present of object, due to rejected region and normal nothing
The attenuation coefficient of defect area is different, and the transmitted intensity and surrounding for penetrating rejected region generate difference；Imaging detector is put
In position, the transmitted ray of acquisition rejected region and normal region attenuation change is received, gray scale (or blackness) is formed and becomes
The gray level image of change, there is some difference with normal region for the gray scale (or blackness) of rejected region in image, gray scale (or blackness)
Difference will form certain contrast, when evaluation, can be according to defect image modality, position and contrast in image to defect feelings
Condition is evaluated.
Currently, mainly being detected using ultrasonic detection method to the layering of carbon fiber winding shell, debonding defect, energy
It effectively determines the two-dimensional surface position of layering, debonding defect, but is limited by ultrasonic detection method, ultrasound examination can not
Layering in carbon fiber winding shell, debonding defect depth location are determined.And use X-ray detection with certain direction
Transillumination can position the depth location of layering, debonding defect, but since layering, unsticking are area-type defects, carry out
The detection of defect has certain directionality when detection.Typical X-ray film camera detection contrast is low, can not carry out to defect
Quantitative analysis evaluation, layering, unsticking can only determine that the reliability of testing result is poor by artificial experience.
Summary of the invention
It, should present invention aim to provide a kind of layering of carbon fiber winding shell, debonding defect detecting appraisal method
Method can to defect is effectively detected and quantitative analysis evaluate.
To achieve the above object, a kind of carbon fiber winding shell layering designed by the present invention, debonding defect detecting appraisal
Method includes the following steps:
1) machine is instructed
Layering debonding defect detection is carried out to carbon fiber winding shell using X-ray production apparatus, starts the power supply of X-ray production apparatus, selects
It selects instruction machine mode and starts instruction machine；
2) detection parameters are arranged
According to testing requirement set the focal spot size of x-ray source of X-ray production apparatus, the Image Acquisition time of integration, integral frame number,
And gain mode；
3) planar array detector corrects
X-ray source, ray source grating, the planar array detector grating, planar array detector of X-ray production apparatus are adjusted according to testing requirement
Position, start the detection system of X-ray production apparatus, then and planar array detector communication connection successively carries out planar array detector dark
Correction, bright corrected；
4) transillumination is arranged
Carbon fiber winding shell is placed between ray source grating and planar array detector grating, guarantees x-ray source, carbon fiber
The transillumination position of dimension winding shell, the central area of planar array detector are located along the same line；
5) shell transillumination direction determines
The X-ray beam that x-ray source is launched and guarantees along the parallel transillumination in transillumination position direction of carbon fiber winding shell
The central beam of X-ray beam is parallel with the shell radial direction of carbon fiber winding shell when transillumination, and vertical with its axial direction；
6) shell detects
Dynamic image is obtained using the acquisition tool in detection system, then by adjusting ray source grating, planar array detector
Grating is respectively defined the receiving area of the transillumination angle of X-ray beam and planar array detector, and adjusts in image evaluation area
Gray value, finally carry out integral noise reduction process using the detection system of X-ray production apparatus, the static number figure after obtaining integral noise reduction
Picture；
7) defect location
Using the measuring tool in detection system, depth is carried out to rejected region in the resulting static digital images of step 6)
Positioning；
8) defect property is evaluated
Using the line gray analysis tool in detection system, a gray scale is pulled up to the resulting static digital images of step 6)
Curve obtains line gray analysis curve graph across rejected region and normal portions, reads rejected region gray value G respectively1Just
Normal position gray value G2, then versus grayscale difference G is calculated, defect property is evaluated according to the size of versus grayscale difference.
Further, in the step 2), focal spot size≤0.5mm of x-ray source；The Image Acquisition time of integration is set as
900~1200ms/ frame.
Further, in the step 2), integral frame number is set as 20~30 frames, and gain mode is set as 1.0pF.
Further, in the step 3), planar array detector carries out the tube voltage that X-ray production apparatus is adjusted when bright corrected and pipe electricity
Stream makes gray value of image 25000~35000.
Further, in the step 6), the gray value in image evaluation area is set as 3000~10000.
Further, in the step 8), the calculation method of versus grayscale difference G is as follows: first using rejected region gray value G1
Subtract normal portions gray value G2Obtain the gray scale difference value Δ G at two positions, then with gray scale difference value Δ G and normal portions gray value
G2It is divided by, obtained percentage is versus grayscale difference G.
Further, in the step 8), if versus grayscale difference G >=20% of the defect part, and it is present in carbon fiber
The carbon fiber winding layer position of shell is wound, then there are lamination defects for the rejected region.
Still further, in the step 8), if versus grayscale difference G >=20% of the defect part, and it is present in carbon fiber
The carbon fiber winding layer of dimension winding shell and insulating rubber bonding site, then there are debonding defects for the rejected region.
Further, in the step 8), if the versus grayscale difference G < 20% of the defect part, the rejected region
There is no layerings, debonding defect.
Compared with the prior art, the advantages of the present invention are as follows:
First, the X-ray beam that the method for the present invention launches x-ray source is along the transillumination position direction of carbon fiber winding shell
Parallel transillumination, and guarantee that the central beam of X-ray beam is parallel with the shell radial direction of carbon fiber winding shell when transillumination, and and its
Axial direction is vertical, and the contrast of detection can be improved.
Second, the method for the present invention have testing result it is intuitive, can quantitative analysis, depth of defect can position etc. it is excellent
Point, the mass production that detection method is suitable for carbon fiber winding shell detect, and greatly improve carbon fiber winding shell
Reliability and safety in utilization.
Third, focal spot size of the method for the invention by the x-ray source to X-ray production apparatus, the Image Acquisition time of integration, product
The parameters such as framing number, gain mode, gray value of image are set to obtain optimal test condition, guarantee that the data obtained are accurate
Degree is high.
Detailed description of the invention
The layout drawing that Fig. 1 is carbon fiber winding shell when being transillumination；
Fig. 2 is the static digital images of the embodiment of the present invention 1；
Fig. 3 is the line gray analysis curve graph of the embodiment of the present invention 1；
Fig. 4 is the static digital images of the embodiment of the present invention 2；
Fig. 5 is the line gray analysis curve graph of the embodiment of the present invention 2；
In figure, carbon fiber winding shell 1, x-ray source 2, ray source grating 3, planar array detector grating 4, planar array detector
5, transillumination position 6.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail:
Embodiment 1:
A kind of carbon fiber winding shell layering of the present invention, debonding defect detecting appraisal method, include the following steps:
1) machine is instructed
Layering debonding defect detection is carried out to carbon fiber winding shell 1 using X-ray production apparatus, before X-ray production apparatus instructs machine operation, first
Planar array detector grating 4 is completely closed, prevents X-ray direct irradiation on planar array detector 5, restarts the power supply of X-ray production apparatus,
Instruction machine mode is selected, then starts instruction machine by power on button；
2) detection parameters are arranged
According to testing requirement when being detected to carbon fiber winding shell, the focal spot size of x-ray source is set as≤
0.5mm, the Image Acquisition time of integration are set as 999ms/ frame, and integral frame number is set as 30 frames, and gain mode is set as 1.0pF；
3) planar array detector corrects
X-ray source 2, ray source grating 3, the planar array detector grating 4, face battle array spy of X-ray production apparatus are adjusted according to testing requirement
The position for surveying device 5 starts the detection system of X-ray production apparatus, clicks " connection " tool, communicates detection system and planar array detector 5
Connection, then successively carries out dark correction, bright corrected to planar array detector；Dark correction be in the case where being not turned on X-ray production apparatus, it is right
The correction that the background of planar array detector 5 carries out, when bright corrected, need to open X-ray production apparatus, pass through and adjust X-ray production apparatus tube voltage and pipe electricity
Stream makes gray value of image be maintained at 30000~35000；
4) transillumination is arranged
Carbon fiber winding shell 1 is placed between ray source grating 3 and planar array detector grating 4 (as shown in Figure 1), is protected
Card x-ray source 2, the transillumination position 6 of carbon fiber winding shell 1, planar array detector 5 central area be located along the same line；
5) shell transillumination direction determines
The X-ray beam that x-ray source 2 is launched along carbon fiber winding shell 1 the parallel transillumination in 6 direction of transillumination position, and
Guarantee that the central beam of X-ray beam when transillumination is parallel with the shell radial direction of carbon fiber winding shell 1, and hangs down with its axial direction
Directly；When the layering debonding defect to carbon fiber winding shell 1 carries out X-ray detection, since layering, debonding defect are area-types
Defect, when being detected defect detection have certain directionality, X-ray beam along the parallel direction with transillumination position into
Row transillumination can be accurately judged to layering, debonding defect position；
6) shell detects
Using the sequence tools in detection system, "+" is then clicked, will pop up a dialog box at this time, in dialog box
Image store path is configured；Using the acquisition tool in detection system, a dynamic image is obtained, by adjusting ray
Source grating 3, planar array detector grating 4 are respectively defined X-ray beam transillumination angle and planar array detector receiving area；
Using the dimensional measurement truing tool in detection system, the dimensional measurement in image is calibrated, clicks " application
→ be set as defaulting ", dimensional measurement calibration finishes；Tube voltage and tube current are adjusted, the gray scale in shell detection image area of interest is made
Value is in 6000~10000 ranges；
Tool is adjusted using the window width and window level in detection system, brightness and contrast is adjusted to dynamic image, makes
The automatic adjustment of state image overall effect is brightness and contrast's optimum state；Finally noise reduction is integrated using the acquisition in detection system
Tool image, the static digital images (as shown in Figure 2) after obtaining width integral noise reduction；
7) defect location
Using the measuring tool in detection system, depth is carried out to rejected region in the resulting static digital images of step 6)
Positioning；
8) defect property is evaluated
After the completion of detection, using the line gray analysis tool in detection system, to the resulting static digital images of step 6)
A grey scale curve is pulled up across rejected region and normal portions, line gray analysis curve graph (as shown in Figure 3) is obtained, reads respectively
Take rejected region gray value G1For 9265 and normal portions gray value G2It is 7700, then uses rejected region gray value G1It subtracts just
Normal position gray value G2Show that the gray scale difference value Δ G at two positions is 1565, then with gray scale difference value Δ G and normal portions gray value
G2It is divided by, obtained percentage is that the versus grayscale difference G of rejected region and normal portions is 20.32%；
Defect property is evaluated according to the size of versus grayscale difference G, as versus grayscale difference G >=20%, and is existed
In the carbon fiber winding layer position of carbon fiber winding shell 1, then there are lamination defects for the rejected region.
Embodiment 2:
A kind of carbon fiber winding shell layering of the present invention, debonding defect detecting appraisal method, include the following steps:
1) machine is instructed
Layering debonding defect detection is carried out to carbon fiber winding shell 1 using X-ray production apparatus, before X-ray production apparatus instructs machine operation, first
Planar array detector grating 4 is completely closed, prevents X-ray direct irradiation on planar array detector 5, restarts the power supply of X-ray production apparatus,
Instruction machine mode is selected, then starts instruction machine by power on button；
2) detection parameters are arranged
According to testing requirement when being detected to carbon fiber winding shell, the focal spot size of x-ray source is set as≤
0.5mm, the Image Acquisition time of integration are set as 1200ms/ frame, and integral frame number is set as 20 frames, and gain mode is set as 1.0pF；
3) planar array detector corrects
X-ray source 2, ray source grating 3, the planar array detector grating 4, face battle array spy of X-ray production apparatus are adjusted according to testing requirement
The position for surveying device 5 starts the detection system of X-ray production apparatus, clicks " connection " tool, communicates detection system and planar array detector 5
Connection, then successively carries out dark correction, bright corrected to planar array detector；Dark correction be in the case where being not turned on X-ray production apparatus, it is right
The correction that the background of planar array detector 5 carries out, when bright corrected, need to open X-ray production apparatus, pass through and adjust X-ray production apparatus tube voltage and pipe electricity
Stream makes gray value of image be maintained at 25000~30000；
4) transillumination is arranged
Carbon fiber winding shell 1 is placed between ray source grating 3 and planar array detector grating 4, guarantee x-ray source 2,
The transillumination position 6 of carbon fiber winding shell 1, the central area of planar array detector 5 are located along the same line；
5) shell transillumination direction determines
The X-ray beam that x-ray source 2 is launched along carbon fiber winding shell 1 the parallel transillumination in 6 direction of transillumination position, and
Guarantee that the central beam of X-ray beam when transillumination is parallel with the shell radial direction of carbon fiber winding shell 1, and hangs down with its axial direction
Directly；When the layering debonding defect to carbon fiber winding shell 1 carries out X-ray detection, since layering, debonding defect are area-types
Defect, when being detected defect detection have certain directionality, X-ray beam along the parallel direction with transillumination position into
Row transillumination can be accurately judged to layering, debonding defect position；
6) shell detects
Using the sequence tools in detection system, "+" is then clicked, will pop up a dialog box at this time, in dialog box
Image store path is configured；Using the acquisition tool in detection system, a dynamic image is obtained, by adjusting ray
Source grating 3, planar array detector grating 4 are respectively defined X-ray beam transillumination angle and planar array detector receiving area；
Using the dimensional measurement truing tool in detection system, the dimensional measurement in image is calibrated, clicks " application
→ be set as defaulting ", dimensional measurement calibration finishes；Tube voltage and tube current are adjusted, the gray scale in shell detection image area of interest is made
Value is in 3000~5000 ranges；
Tool is adjusted using the window width and window level in detection system, brightness and contrast is adjusted to dynamic image, makes
The automatic adjustment of state image overall effect is brightness and contrast's optimum state；Finally noise reduction is integrated using the acquisition in detection system
Tool image, the static digital images (as shown in Figure 4) after obtaining width integral noise reduction；
7) defect location
Using the measuring tool in detection system, depth is carried out to rejected region in the resulting static digital images of step 6)
Positioning；
8) defect property is evaluated
After the completion of detection, using the line gray analysis tool in detection system, to the resulting static digital images of step 6)
A grey scale curve is pulled up across rejected region and normal portions, line gray analysis curve graph (as shown in Figure 5) is obtained, reads respectively
Take rejected region gray value G1For 4091 and normal portions gray value G2It is 3312, then uses rejected region gray value G1It subtracts just
Normal position gray value G2Show that the gray scale difference value Δ G at two positions is 779, then with gray scale difference value Δ G and normal portions gray value G2
It is divided by, obtained percentage is that the versus grayscale difference G of rejected region and normal portions is 23.52%；
Defect property is evaluated according to the size of versus grayscale difference G, as versus grayscale difference G >=20%, and is existed
Carbon fiber winding layer and insulating rubber bonding site in carbon fiber winding shell 1, then there are debonding defects for the rejected region.
Embodiment 3:
A kind of carbon fiber winding shell layering of the present invention, debonding defect detecting appraisal method, include the following steps:
1) machine is instructed
Layering debonding defect detection is carried out to carbon fiber winding shell 1 using X-ray production apparatus, before X-ray production apparatus instructs machine operation, first
Planar array detector grating 4 is completely closed, prevents X-ray direct irradiation on planar array detector 5, restarts the power supply of X-ray production apparatus,
Instruction machine mode is selected, then starts instruction machine by power on button；
2) detection parameters are arranged
When detecting to carbon fiber winding shell, the focal spot size of x-ray source is set as≤0.5mm, Image Acquisition
The time of integration is set as 900ms/ frame, and integral frame number is set as 20 frames, and gain mode is set as 1.0pF；
3) planar array detector corrects
X-ray source 2, ray source grating 3, the planar array detector grating 4, face battle array spy of X-ray production apparatus are adjusted according to testing requirement
The position for surveying device 5 starts the detection system of X-ray production apparatus, clicks " connection " tool, communicates detection system and planar array detector 5
Connection, then successively carries out dark correction, bright corrected to planar array detector；Dark correction be in the case where being not turned on X-ray production apparatus, it is right
The correction that the background of planar array detector 5 carries out, when bright corrected, need to open X-ray production apparatus, pass through and adjust X-ray production apparatus tube voltage and pipe electricity
Stream makes gray value of image be maintained at 25000~35000；
4) transillumination is arranged
Carbon fiber winding shell 1 is placed between ray source grating 3 and planar array detector grating 4, as shown in Figure 1, protecting
Card x-ray source 2, the transillumination position 6 of carbon fiber winding shell 1, planar array detector 5 central area be located along the same line；
5) shell transillumination direction determines
The X-ray beam that x-ray source 2 is launched along carbon fiber winding shell 1 the parallel transillumination in 6 direction of transillumination position, and
Guarantee that the central beam of X-ray beam when transillumination is parallel with the shell radial direction of carbon fiber winding shell 1, and hangs down with its axial direction
Directly；When the layering debonding defect to carbon fiber winding shell 1 carries out X-ray detection, since layering, debonding defect are area-types
Defect, when being detected defect detection have certain directionality, X-ray beam along the parallel direction with transillumination position into
Row transillumination can be accurately judged to layering, debonding defect position；
6) shell detects
Using the sequence tools in detection system, "+" is then clicked, will pop up a dialog box at this time, in dialog box
Image store path is configured；Using the acquisition tool in detection system, a dynamic image is obtained, by adjusting ray
Source grating 3, planar array detector grating 4 are respectively defined X-ray beam transillumination angle and planar array detector receiving area；
Using the dimensional measurement truing tool in detection system, the dimensional measurement in image is calibrated, clicks " application
→ be set as defaulting ", dimensional measurement calibration finishes；Tube voltage and tube current are adjusted, the gray scale in shell detection image area of interest is made
Value is in 4000~6000 ranges；
Tool is adjusted using the window width and window level in detection system, brightness and contrast is adjusted to dynamic image, makes
The automatic adjustment of state image overall effect is brightness and contrast's optimum state；Finally noise reduction is integrated using the acquisition in detection system
Tool image, the static digital images after obtaining width integral noise reduction；
7) defect location
Using the measuring tool in detection system, depth is carried out to rejected region in the resulting static digital images of step 6)
Positioning；
8) defect property is evaluated
After the completion of detection, using the line gray analysis tool in detection system, to the resulting static digital images of step 6)
A grey scale curve is pulled up across rejected region and normal portions, line gray analysis curve graph is obtained, reads rejected region respectively
Gray value G1For 5903 and normal portions gray value G2It is 5072, then uses rejected region gray value G1Subtract normal portions gray scale
Value G2Show that the gray scale difference value Δ G at two positions is 831, then with gray scale difference value Δ G and normal portions gray value G2It is divided by, obtains
Percentage be the versus grayscale difference G of rejected region and normal portions be 16.38%；
Defect property is evaluated according to the size of versus grayscale difference G, as versus grayscale difference G < 20%, then this is lacked
There is no layerings, debonding defect for concave portion position.
The above is only a specific embodiment of the invention, it is noted that and remaining unspecified content is the prior art,
Anyone skilled in the art is in disclosed technical scope, and any changes or substitutions that can be easily thought of, all
It is covered by the protection scope of the present invention.
Claims (9)
1. a kind of carbon fiber winding shell layering, debonding defect detecting appraisal method, characterized by the following steps:
1) machine is instructed
Layering debonding defect detection is carried out to carbon fiber winding shell (1) using X-ray production apparatus, starts the power supply of X-ray production apparatus, selects
Instruction machine mode starts instruction machine；
2) detection parameters are arranged
According to testing requirement set the focal spot size of x-ray source (2) of X-ray production apparatus, the Image Acquisition time of integration, integral frame number,
And gain mode；
3) planar array detector corrects
X-ray source (2), ray source grating (3), the planar array detector grating (4), face battle array of X-ray production apparatus are adjusted according to testing requirement
The position of detector (5), starts the detection system of X-ray production apparatus, with planar array detector (5) communication connection, then opposite battle array detection
Device (5) successively carries out dark correction, bright corrected；
4) transillumination is arranged
Carbon fiber winding shell (1) is placed between ray source grating (3) and planar array detector grating (4), guarantees x-ray source
(2), the transillumination position (6) of carbon fiber winding shell (1), the central area of planar array detector (5) are located along the same line；
5) shell transillumination direction determines
The X-ray beam that x-ray source (2) is launched along carbon fiber winding shell (1) the parallel transillumination in transillumination position (6) direction,
And guarantee that the central beam of X-ray beam is parallel with the shell radial direction of carbon fiber winding shell (1) when transillumination, and with its axial direction side
To vertical；
6) shell detects
Dynamic image is obtained using the acquisition tool in detection system, then by adjusting ray source grating (3), planar array detector light
Grid (4) are respectively defined the receiving area of the transillumination angle of X-ray beam and planar array detector, and adjust in image evaluation area
Gray value, finally carry out integral noise reduction process using the detection system of X-ray production apparatus, the static number figure after obtaining integral noise reduction
Picture；
7) defect location
Using the measuring tool in detection system, it is fixed that depth is carried out to rejected region in the resulting static digital images of step 6)
Position；
8) defect property is evaluated
Using the line gray analysis tool in detection system, a grey scale curve is pulled up to the resulting static digital images of step 6)
Across rejected region and normal portions, line gray analysis curve graph is obtained, reads rejected region gray value G respectively1With normal portion
Position gray value G2, then versus grayscale difference G is calculated, defect property is evaluated according to the size of versus grayscale difference.
2. carbon fiber winding shell layering according to claim 1, debonding defect detecting appraisal method, it is characterised in that:
In the step 2), focal spot size≤0.5mm of x-ray source；The Image Acquisition time of integration is set as 900~1200ms/ frame.
3. carbon fiber winding shell layering according to claim 1, debonding defect detecting appraisal method, it is characterised in that:
In the step 2), integral frame number is set as 20~30 frames, and gain mode is set as 1.0pF.
4. carbon fiber winding shell layering according to claim 1, debonding defect detecting appraisal method, it is characterised in that:
Adjusting the tube voltage of X-ray production apparatus and tube current in the step 3), when planar array detector (5) carries out bright corrected makes gray value of image
It is 25000~35000.
5. carbon fiber winding shell layering according to claim 1, debonding defect detecting appraisal method, it is characterised in that:
In the step 6), the gray value in image evaluation area is set as 3000~10000.
6. carbon fiber winding shell layering according to claim 1, debonding defect detecting appraisal method, it is characterised in that:
In the step 8), the calculation method of versus grayscale difference G is as follows: first using rejected region gray value G1Subtract normal portions gray value
G2Obtain the gray scale difference value Δ G at two positions, then with gray scale difference value Δ G and normal portions gray value G2It is divided by, obtained percentage
As versus grayscale difference G.
7. carbon fiber winding shell according to claim 1 or 6 is layered, debonding defect detecting appraisal method, feature exists
In: in the step 8), if versus grayscale difference G >=20% of the defect part, and it is present in the carbon fiber of carbon fiber winding shell
Winding layer position is tieed up, then there are lamination defects for the rejected region.
8. carbon fiber winding shell according to claim 1 or 6 is layered, debonding defect detecting appraisal method, feature exists
In: in the step 8), if versus grayscale difference G >=20% of the defect part, and it is present in the carbon fiber of carbon fiber winding shell
Winding layer and insulating rubber bonding site are tieed up, then there are debonding defects for the rejected region.
9. carbon fiber winding shell according to claim 1 or 6 is layered, debonding defect detecting appraisal method, feature exists
In: in the step 8), if the versus grayscale difference G < 20% of the defect part, there is no layering, unstickings to lack for the rejected region
It falls into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811004606.7A CN109142396A (en) | 2018-08-30 | 2018-08-30 | A kind of layering of carbon fiber winding shell, debonding defect detecting appraisal method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811004606.7A CN109142396A (en) | 2018-08-30 | 2018-08-30 | A kind of layering of carbon fiber winding shell, debonding defect detecting appraisal method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109142396A true CN109142396A (en) | 2019-01-04 |
Family
ID=64829551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811004606.7A Pending CN109142396A (en) | 2018-08-30 | 2018-08-30 | A kind of layering of carbon fiber winding shell, debonding defect detecting appraisal method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109142396A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031487A (en) * | 2019-03-04 | 2019-07-19 | 禾准电子科技（昆山）有限公司 | A kind of gluing lossless detection method |
| CN110174419A (en) * | 2019-05-17 | 2019-08-27 | 中国石油化工股份有限公司 | The detection method of in-service air cooler tube bundle based on X-ray digital imaging technology |
| CN115330802A (en) * | 2022-10-17 | 2022-11-11 | 山东大学 | Carbon fiber composite material gas cylinder X-ray image debonding defect extraction method |
| WO2024002040A1 (en) * | 2022-06-30 | 2024-01-04 | 青岛理工大学 | Wireless microstrip patch antenna sensor and application thereof in field of debonding defect detection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115995A (en) * | 2015-08-25 | 2015-12-02 | 交通运输部公路科学研究所 | Industrial CT scanner synchronous loading test apparatus and industrial CT scanner |
| WO2016115126A1 (en) * | 2015-01-14 | 2016-07-21 | General Electric Company | Flexible x-ray detector and methods for fabricating the same |
| DE102015221323B3 (en) * | 2015-10-30 | 2016-08-04 | Airbus Defence and Space GmbH | Method for detecting surface contamination by X-ray fluorescence analysis |
| CN106248701A (en) * | 2016-08-31 | 2016-12-21 | 四川聚能核技术工程有限公司 | A kind of industry CT test device and method to the power of test in unsticking gap |
-
2018
- 2018-08-30 CN CN201811004606.7A patent/CN109142396A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016115126A1 (en) * | 2015-01-14 | 2016-07-21 | General Electric Company | Flexible x-ray detector and methods for fabricating the same |
| CN105115995A (en) * | 2015-08-25 | 2015-12-02 | 交通运输部公路科学研究所 | Industrial CT scanner synchronous loading test apparatus and industrial CT scanner |
| DE102015221323B3 (en) * | 2015-10-30 | 2016-08-04 | Airbus Defence and Space GmbH | Method for detecting surface contamination by X-ray fluorescence analysis |
| CN106248701A (en) * | 2016-08-31 | 2016-12-21 | 四川聚能核技术工程有限公司 | A kind of industry CT test device and method to the power of test in unsticking gap |
Non-Patent Citations (2)
| Title |
|---|
| 朱延霆等: "碳纤维复合材料气瓶的CT检测实验研究", 《CT理论与应用研究》 * |
| 王晓勇等: "X 射线切线照相检测技术在纤维缠绕压力容器检测中的应用", 《航天制造技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031487A (en) * | 2019-03-04 | 2019-07-19 | 禾准电子科技（昆山）有限公司 | A kind of gluing lossless detection method |
| CN110174419A (en) * | 2019-05-17 | 2019-08-27 | 中国石油化工股份有限公司 | The detection method of in-service air cooler tube bundle based on X-ray digital imaging technology |
| WO2024002040A1 (en) * | 2022-06-30 | 2024-01-04 | 青岛理工大学 | Wireless microstrip patch antenna sensor and application thereof in field of debonding defect detection |
| CN115330802A (en) * | 2022-10-17 | 2022-11-11 | 山东大学 | Carbon fiber composite material gas cylinder X-ray image debonding defect extraction method |
| CN115330802B (en) * | 2022-10-17 | 2024-01-19 | 山东大学 | Method for extracting debonding defect of X-ray image of carbon fiber composite gas cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109142396A (en) | A kind of layering of carbon fiber winding shell, debonding defect detecting appraisal method | |
| JPWO2017069286A1 (en) | X-ray apparatus, data processing apparatus and data processing method | |
| CN106667515B (en) | CT scanner defocus correction method | |
| CN109073571A (en) | The continuous non-destructive detection method and continuous non-destructive testing apparatus of membrane-electrode assembly | |
| CN108844978A (en) | It is a kind of for detecting the new method of honeycomb interior defect | |
| US20090268876A1 (en) | Methods of assessing performance in an imaging system | |
| JP2006517031A (en) | Radiolucent real-time dosimeter for interventional radiology | |
| US6757353B2 (en) | Golf ball inspection using metal markers | |
| CN110914637B (en) | Dual scan method for detecting fiber misalignment in elongated structures | |
| CN103234990A (en) | New non-destructive detection method for morphology and distribution of pores in welding seam | |
| CN107132271A (en) | Structure light and magneto-optic imaging double-sensing appearance of weld and defect lossless detection method | |
| US20200003705A1 (en) | Measurement processing device, x-ray inspection device, measurement processing method, measurement processing program, and structure manufacturing method | |
| CN108333195A (en) | A method of it is used to detect pipeline wall thickness and whether pipeline corrodes | |
| JPH0663959B2 (en) | Method and apparatus for measuring basis weight distribution | |
| JP3942786B2 (en) | Bonding inspection apparatus and method | |
| Sanabria et al. | Assessment of glued timber integrity by limited-angle microfocus X-ray computed tomography | |
| CN105161147A (en) | Nondestructive testing method for spent fuel component of pressurized water reactor by virtue of three-dimensional neutron radiography | |
| JP2009175065A (en) | Simultaneous three-dimensional distribution-visualization observation-measurement method of a plurality of elements by neutron prompt gamma-ray analysis, and device thereof | |
| JP4906602B2 (en) | Defect inspection apparatus and defect inspection method for polycrystalline silicon substrate | |
| US8985853B2 (en) | Methods of calibrating X-ray detectors | |
| KR101200787B1 (en) | Method of automatic adjust inspection parameter and images in X-ray inspection apparatus | |
| KR102131615B1 (en) | Apparatus for generating radiographic image and method for the same | |
| WO2017200666A1 (en) | Pulsed neutron generated prompt gamma emission measurement system for surface defect detection and analysis | |
| CN107782752B (en) | Welding seam ray detection equipment and detection method thereof | |
| JP2006090743A (en) | Device and method for inspecting inside of foam body |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |
|
| RJ01 | Rejection of invention patent application after publication |