CN112345171A - Laminating leakproofness detection device of reinforcement circle for flexible circuit board - Google Patents
Laminating leakproofness detection device of reinforcement circle for flexible circuit board Download PDFInfo
- Publication number
- CN112345171A CN112345171A CN202011100779.6A CN202011100779A CN112345171A CN 112345171 A CN112345171 A CN 112345171A CN 202011100779 A CN202011100779 A CN 202011100779A CN 112345171 A CN112345171 A CN 112345171A
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- circuit board
- detection
- flexible circuit
- hole
- sealing
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- 238000001514 detection method Methods 0.000 title claims abstract description 90
- 230000002787 reinforcement Effects 0.000 title claims abstract description 11
- 238000010030 laminating Methods 0.000 title claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 62
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 29
- 230000001680 brushing effect Effects 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 9
- 239000006260 foam Substances 0.000 claims description 8
- 239000000344 soap Substances 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005192 partition Methods 0.000 description 12
- 238000009423 ventilation Methods 0.000 description 7
- 230000006978 adaptation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
The invention belongs to the field of circuit board detection devices, in particular to a device for detecting the bonding sealing property of a reinforcing ring for a flexible circuit board, which aims at solving the problems that the prior detection method is easy to damage the flexible circuit board, the flexible circuit board can be seriously damaged, the observation phenomenon is not clear and obvious enough, and the like, and the following scheme is proposed at present: the utility model provides a laminating leakproofness detection device of reinforcement circle for flexible circuit board, includes and detects the box, the bottom inner wall fixed mounting who detects the box has the baffle, one side of baffle is equipped with sealed detection cylinder, the opposite side outer wall top position fixed mounting of baffle has the layer board, the upper surface of layer board is equipped with the brush liquid board, the last surface movable mounting who detects the box has sealed lid. The detection device can well detect the attaching tightness of the reinforcing ring on the flexible circuit board, is convenient to observe, has obvious and clear result, is simple to operate, and is suitable for wide popularization.
Description
Technical Field
The invention relates to the technical field of circuit board detection devices, in particular to a device for detecting the bonding tightness of a reinforcing ring for a flexible circuit board.
Background
The reinforcing ring is a gold domain ring plate reinforcing element which is added around the opening of the pressure container casing. Is used for reinforcing the ring (i.e. flitch reinforcement) and belongs to a compression element. Typically the same material as the housing. According to the requirement, there are 3 forms of sticking to the inner side, outer side and double-side of the shell, and the top is processed and formed and then welded with the shell and the connecting pipe by a full penetration or non-full penetration welding line.
At present, on current flexible circuit board, often can use the reinforcement circle, nevertheless when detecting to the laminating leakproofness of reinforcement circle, people generally adopt the method of adding the water injection to observe and detect, then cause the damage to flexible circuit board easily like this, serious can cause the damage of flexible circuit board to observe the phenomenon clearly not enough obvious, caused certain harmful effects in actual use, consequently, we have provided a laminating leakproofness detection device of reinforcement circle for flexible circuit board.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a bonding sealing performance detection device of a reinforcing ring for a flexible circuit board.
In order to achieve the purpose, the invention adopts the following technical scheme:
a laminating sealing performance detection device of a reinforcing ring for a flexible circuit board comprises a detection box, wherein a partition plate is fixedly installed on the inner wall of the bottom of the detection box, a sealing detection cylinder is arranged on one side of the partition plate, a supporting plate is fixedly installed at the top of the outer wall of the other side of the partition plate, a liquid brushing plate is arranged on the upper surface of the supporting plate, a sealing cover is movably installed on the upper surface of the detection box, a ventilation hose is fixedly installed at the lower end of the sealing detection cylinder, a sucking disc is installed at the lower end of the ventilation hose, a piston head is movably installed on the inner surface of the sealing detection cylinder, a first through hole is formed in the inner surface of the piston head, a movable baffle is fixedly connected to the lower end of the piston head through a connecting rod, a friction plugging sheet is movably sleeved on the outer surface of the connecting rod, a, the upper end of the sealing cover is fixedly connected with a lifting handle, the upper end of the liquid brushing plate is fixedly connected with a grab handle, the lower end of the liquid brushing plate is provided with a brush, the inner wall of the bottom of the sealing detection cylinder is provided with a fourth through hole, and the sealing detection cylinder is communicated with the ventilation hose through the fourth through hole.
Preferably, a detection liquid storage cavity is arranged below the supporting plate, and soap foam liquid is arranged in the detection liquid storage cavity.
Preferably, the lower end of the sealing detection cylinder is movably hinged with a one-way air-filling cover, a limiting strip is arranged below the one-way air-filling cover, the upper end of the limiting strip is fixedly connected with the sealing detection cylinder, the limiting strip is J-shaped, and a fifth through hole is formed in the inner surface of the sucker.
Preferably, a static sliding friction force f exists between the outer surface of the friction plugging sheet and the inner wall of the sealing detection cylinder, and the static sliding friction force f is greater than the gravity g of the friction plugging sheet.
Preferably, the second through hole and the third through hole are located at the same vertical line position, and the first through hole and the third through hole are located at non-same vertical line positions.
Preferably, the top positions of the outer walls of the two sides of the sealing detection cylinder are fixedly provided with assisting pieces, the upper surface of the piston head is fixedly provided with an air-entrapping ejector rod, the upper end of the air-entrapping ejector rod is fixedly connected with a pull plate, and the cross sections of the air-entrapping ejector rod and the pull plate are T-shaped.
Preferably, the horizontal one end activity of sealed lid articulates there is the hasp, the horizontal other end activity of sealed lid articulates there is the hinge, it detains the seat to detect box one side outer wall top fixed mounting who is close to the hasp, and hasp and detain seat looks adaptation.
Preferably, the outer surface of the grab handle is fixedly sleeved with an anti-slip sleeve, the outer surface of the anti-slip sleeve is provided with a plurality of anti-slip lugs, the anti-slip lugs are circular, and the liquid brushing plate is fixedly connected with the hairbrush through a binding sleeve shell.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by arranging the sealing detection cylinder, the sealing cover, the vent hose, the sucker, the piston head, the first through hole, the connecting rod, the movable baffle, the friction plugging sheet, the second through hole, the third through hole, the one-way gas filling cover and the limiting strip, when the sealing performance needs to be detected, the piston head can be driven to move downwards in the sealing detection cylinder by pressing the gas filling ejector rod downwards, the friction plugging sheet can be pressed downwards by the piston head at the moment, the first through hole in the piston head is plugged by the friction plugging sheet, and gas in the cylinder can be conveniently pressed into one end of the reinforcing ring through the vent hose and the sucker, so that the gas filling operation on the periphery of the reinforcing ring on the flexible circuit board is realized, and the detection work of the sealing performance of the reinforcing ring by people is;
2. according to the invention, by arranging the partition plate, the supporting plate, the liquid brushing plate, the detection liquid storage cavity, the hairbrush and the grab handle, soap foam liquid can be smeared on the other side of the reinforcing ring, so that the sealing effect of the reinforcing ring is judged according to the change of the soap foam liquid in the gas filling process, the observation is more convenient, and the result is obvious and clear;
3. according to the invention, by arranging the anti-skid sleeve, the anti-skid bump and the binding sleeve shell, a good anti-skid structure is added for the detection device, so that the operation work of people during detection is more convenient;
in conclusion, the detection device can well detect the attaching tightness of the reinforcing ring on the flexible circuit board, is convenient to observe, has obvious and clear result, is simple to operate, and is suitable for wide popularization.
Drawings
Fig. 1 is a schematic structural diagram of a device for detecting the adhesion sealing property of a reinforcing ring for a flexible circuit board according to the present invention;
fig. 2 is a schematic structural diagram of a sealing detection cylinder of a bonding sealing performance detection device of a reinforcing ring for a flexible circuit board according to the present invention;
fig. 3 is a schematic structural view of a liquid brushing plate according to a first embodiment of the device for detecting adhesion sealing property of a reinforcing ring for a flexible printed circuit board according to the present invention;
fig. 4 is a schematic structural view of a liquid-brushing plate according to a second embodiment of the device for detecting adhesion sealing property of a reinforcing ring for a flexible circuit board according to the present invention.
In the figure: the device comprises a detection box 1, a partition plate 2, a sealing detection cylinder 3, a supporting plate 4, a liquid brushing plate 5, a sealing cover 6, a detection liquid storage cavity 7, an air hose 8, a suction cup 9, a piston head 10, a first through hole 11, a connecting rod 12, a movable baffle 13, a friction blocking sheet 14, a second through hole 15, a third through hole 16, a one-way air adding cover 17, a limiting strip 18, a power assisting sheet 19, a lock catch 20, a buckle seat 21, a lifting handle 22, a brush 23, a grab handle 24, an air adding ejector rod 25, a drawing plate 26, a fourth through hole 27, an anti-skid sleeve 28, an anti-skid bump 29, a binding sleeve shell 30 and a hinge 31.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The first embodiment is as follows:
referring to fig. 1-3, a bonding sealing performance detection device of a reinforcement ring for a flexible circuit board comprises a detection box 1, a partition plate 2 is fixedly installed on the inner wall of the bottom of the detection box 1, a sealing detection cylinder 3 is arranged on one side of the partition plate 2, a supporting plate 4 is fixedly installed on the top of the outer wall of the other side of the partition plate 2, a liquid brushing plate 5 is arranged on the upper surface of the supporting plate 4, a sealing cover 6 is movably installed on the upper surface of the detection box 1, a ventilation hose 8 is fixedly installed at the lower end of the sealing detection cylinder 3, a suction disc 9 is installed at the lower end of the ventilation hose 8, a piston head 10 is movably installed on the inner surface of the sealing detection cylinder 3, a first through hole 11 is formed in the inner surface of the piston head 10, a movable baffle 13 is fixedly connected to the lower end of the piston head 10 through, the third through-hole 16 has been seted up to the internal surface of friction shutoff piece 14, and the upper end fixedly connected with of sealed lid 6 carries handle 22, and the upper end fixedly connected with grab handle 24 of brushing liquid board 5, the lower extreme of brushing liquid board 5 are equipped with brush 23, have seted up fourth through-hole 27 on the bottom inner wall of sealed detection section of thick bamboo 3, and sealed detection section of thick bamboo 3 is linked together with breather hose 8 through fourth through-hole 27.
Wherein, a detection liquid storage cavity 7 is arranged below the supporting plate 4, and soap foam liquid is arranged in the detection liquid storage cavity 7.
The lower end of the sealing detection barrel 3 is movably hinged with a one-way air-filling cover 17, a limiting strip 18 is arranged below the one-way air-filling cover 17, the upper end of the limiting strip 18 is fixedly connected with the sealing detection barrel 3, the limiting strip 18 is J-shaped, and a fifth through hole is formed in the inner surface of the sucker 9.
Wherein, a static sliding friction force f exists between the outer surface of the friction plugging sheet 14 and the inner wall of the sealing detection cylinder 3, and the static sliding friction force f is greater than the gravity g of the friction plugging sheet 14.
The second through hole 15 and the third through hole 16 are located at the same vertical line position, and the first through hole 11 and the third through hole 16 are located at non-same vertical line positions.
The top positions of the outer walls of the two sides of the sealing detection cylinder 3 are fixedly provided with assisting sheets 19, the upper surface of the piston head 10 is fixedly provided with an air-entrapping mandril 25, the upper end of the air-entrapping mandril 25 is fixedly connected with a pull plate 26, and the cross sections of the air-entrapping mandril 25 and the pull plate 26 are T-shaped.
Wherein, the activity of the horizontal one end of sealed lid 6 articulates there is hasp 20, and the activity of the horizontal other end of sealed lid 6 articulates there is hinge 31, and the outer wall top position fixed mounting of one side that detects box 1 is close to hasp 20 has detain seat 21, and hasp 20 with detain seat 21 looks adaptation.
Example two:
referring to fig. 1-2 and 4, a bonding sealing performance detection device of a reinforcement ring for a flexible circuit board comprises a detection box 1, a partition plate 2 is fixedly installed on the inner wall of the bottom of the detection box 1, a sealing detection cylinder 3 is arranged on one side of the partition plate 2, a supporting plate 4 is fixedly installed on the top of the outer wall of the other side of the partition plate 2, a liquid brushing plate 5 is arranged on the upper surface of the supporting plate 4, a sealing cover 6 is movably installed on the upper surface of the detection box 1, a ventilation hose 8 is fixedly installed at the lower end of the sealing detection cylinder 3, a suction disc 9 is installed at the lower end of the ventilation hose 8, a piston head 10 is movably installed on the inner surface of the sealing detection cylinder 3, a first through hole 11 is formed in the inner surface of the piston head 10, a movable baffle 13 is fixedly connected to the lower end of the piston head 10 through a, the third through-hole 16 has been seted up to the internal surface of friction shutoff piece 14, and the upper end fixedly connected with of sealed lid 6 carries handle 22, and the upper end fixedly connected with grab handle 24 of brushing liquid board 5, the lower extreme of brushing liquid board 5 are equipped with brush 23, have seted up fourth through-hole 27 on the bottom inner wall of sealed detection section of thick bamboo 3, and sealed detection section of thick bamboo 3 is linked together with breather hose 8 through fourth through-hole 27.
Wherein, a detection liquid storage cavity 7 is arranged below the supporting plate 4, and soap foam liquid is arranged in the detection liquid storage cavity 7.
The lower end of the sealing detection barrel 3 is movably hinged with a one-way air-filling cover 17, a limiting strip 18 is arranged below the one-way air-filling cover 17, the upper end of the limiting strip 18 is fixedly connected with the sealing detection barrel 3, the limiting strip 18 is J-shaped, and a fifth through hole is formed in the inner surface of the sucker 9.
Wherein, a static sliding friction force f exists between the outer surface of the friction plugging sheet 14 and the inner wall of the sealing detection cylinder 3, and the static sliding friction force f is greater than the gravity g of the friction plugging sheet 14.
The second through hole 15 and the third through hole 16 are located at the same vertical line position, and the first through hole 11 and the third through hole 16 are located at non-same vertical line positions.
The top positions of the outer walls of the two sides of the sealing detection cylinder 3 are fixedly provided with assisting sheets 19, the upper surface of the piston head 10 is fixedly provided with an air-entrapping mandril 25, the upper end of the air-entrapping mandril 25 is fixedly connected with a pull plate 26, and the cross sections of the air-entrapping mandril 25 and the pull plate 26 are T-shaped.
Wherein, the activity of the horizontal one end of sealed lid 6 articulates there is hasp 20, and the activity of the horizontal other end of sealed lid 6 articulates there is hinge 31, and the outer wall top position fixed mounting of one side that detects box 1 is close to hasp 20 has detain seat 21, and hasp 20 with detain seat 21 looks adaptation.
Wherein, the outer surface of the grab handle 24 is fixedly sleeved with an anti-slip sleeve 28, the outer surface of the anti-slip sleeve 28 is provided with a plurality of anti-slip lugs 29, the shape of the anti-slip lugs 29 is circular, and the liquid brushing plate 5 is fixedly connected with the brush 23 through a binding sleeve shell 30.
The working principle is as follows: when the device is used, by arranging the sealing detection cylinder 3, the sealing cover 6, the vent hose 8, the sucking disc 9, the piston head 10, the first through hole 11, the connecting rod 12, the movable baffle 13, the friction plugging sheet 14, the second through hole 15, the third through hole 16, the one-way gas filling cover 17 and the limiting strip 18, when the sealing performance needs to be detected, the piston head 10 is driven to move downwards in the sealing detection cylinder 3 by pressing the gas filling ejector rod 25 downwards, the piston head 10 at the moment can press the friction plugging sheet 14 downwards, the friction plugging sheet 14 blocks the first through hole 11 on the piston head 10, gas in the cylinder can be conveniently pressed into one end of the reinforcing ring through the vent hose 8 and the sucking disc 9, so that the gas filling operation on the periphery of the reinforcing ring on the flexible circuit board is realized, and the detection work of the sealing performance of the reinforcing ring by people is further facilitated, and the partition plate 2, the supporting plate 4, the liquid brushing plate 5 and the detection cavity 7 are, The brush 23 and the handle 24 can be used for smearing soap foam liquid on the other side of the reinforcing ring, so that in the air-entrapping process, the sealing effect of the reinforcing ring is judged according to the change of the soap foam liquid, the observation is more convenient, the result is obvious, a good anti-skidding structure is added for the detection device by arranging the anti-skidding sleeve 28, the anti-skidding lug 29 and the binding sleeve shell 30, and the operation work of people in the detection process is more convenient.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a laminating leakproofness detection device of reinforcement circle for flexible circuit board, includes detection box (1), its characterized in that, the bottom inner wall fixed mounting of detection box (1) has baffle (2), one side of baffle (2) is equipped with sealed detection section of thick bamboo (3), the opposite side outer wall top position fixed mounting of baffle (2) has layer board (4), the upper surface of layer board (4) is equipped with brush liquid board (5), the upper surface movable mounting of detection box (1) has sealed lid (6), the lower extreme fixed mounting of sealed detection section of thick bamboo (3) has breather hose (8), sucking disc (9) are installed to the lower extreme of breather hose (8), the internal surface movable mounting of sealed detection section of thick bamboo (3) has piston head (10), first through-hole (11) have been seted up to the internal surface of piston head (10), the lower extreme of piston head (10) passes through connecting rod (12) fixedly connected with adjustable fender (13), the outer surface activity of connecting rod (12) has cup jointed friction shutoff piece (14), second through-hole (15) have been seted up to the internal surface of adjustable fender (13), third through-hole (16) have been seted up to the internal surface of friction shutoff piece (14), handle (22) are carried to the upper end fixedly connected with of sealed lid (6), the upper end fixedly connected with grab handle (24) of brush liquid board (5), the lower extreme of brush liquid board (5) is equipped with brush (23), fourth through-hole (27) have been seted up on the bottom inner wall of sealed detection section of thick bamboo (3), and sealed detection section of thick bamboo (3) are linked together through fourth through-hole (27) and air hose (8).
2. The device for detecting the attachment sealing property of the reinforcing ring for the flexible circuit board as claimed in claim 1, wherein a detection liquid storage cavity (7) is arranged below the supporting plate (4), and soap foam liquid is arranged inside the detection liquid storage cavity (7).
3. The device for detecting the attachment sealing property of the reinforcing ring for the flexible circuit board as claimed in claim 1, wherein the lower end of the sealing detection cylinder (3) is movably hinged with a one-way air-filling cover (17), a limiting strip (18) is arranged below the one-way air-filling cover (17), the upper end of the limiting strip (18) is fixedly connected with the sealing detection cylinder (3), the limiting strip (18) is J-shaped, and a fifth through hole is formed in the inner surface of the suction cup (9).
4. The device for detecting the adhesion sealing property of the reinforcing ring for the flexible circuit board as claimed in claim 1, wherein a static sliding friction force f exists between the outer surface of the friction blocking piece (14) and the inner wall of the sealing detection cylinder (3), and the static sliding friction force f is greater than the gravity g of the friction blocking piece (14) itself.
5. The apparatus for detecting the sealing performance of a reinforcement ring for a flexible printed circuit board according to claim 1, wherein the second through hole (15) and the third through hole (16) are located at the same vertical line, and the first through hole (11) and the third through hole (16) are located at different vertical lines.
6. The fit tightness detection device of the reinforcing ring for the flexible circuit board according to claim 1, wherein the sealing detection cylinder (3) is fixedly provided with an auxiliary force piece (19) at the top of the outer wall at both sides, the upper surface of the piston head (10) is fixedly provided with an air-entrapping push rod (25), the upper end of the air-entrapping push rod (25) is fixedly connected with a pull plate (26), and the cross-sectional shapes of the air-entrapping push rod (25) and the pull plate (26) are T-shaped.
7. The device for detecting the attachment sealing property of the reinforcing ring for the flexible circuit board as claimed in claim 1, wherein the horizontal end of the sealing cover (6) is movably hinged with a lock catch (20), the horizontal other end of the sealing cover (6) is movably hinged with a hinge (31), the top of the outer wall of one side of the detection box (1) close to the lock catch (20) is fixedly provided with a buckle seat (21), and the lock catch (20) is matched with the buckle seat (21).
8. The device for detecting the adhesion tightness of the reinforcing ring for the flexible circuit board as claimed in claim 1, wherein an anti-slip sleeve (28) is fixedly sleeved on the outer surface of the handle (24), the outer surface of the anti-slip sleeve (28) is provided with a plurality of anti-slip bumps (29), the anti-slip bumps (29) are circular, and the liquid brushing plate (5) and the brush (23) are fixedly connected through a binding sleeve housing (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011100779.6A CN112345171B (en) | 2020-10-15 | 2020-10-15 | Laminating leakproofness detection device of reinforcement circle for flexible circuit board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011100779.6A CN112345171B (en) | 2020-10-15 | 2020-10-15 | Laminating leakproofness detection device of reinforcement circle for flexible circuit board |
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| CN112345171A true CN112345171A (en) | 2021-02-09 |
| CN112345171B CN112345171B (en) | 2022-07-15 |
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| Title |
|---|
| 王红莲 白海青: "压力容器补强圈泄漏试验的探讨", 《数字化用户》 * |
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| CN112345171B (en) | 2022-07-15 |
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