CN109115421A - A kind of sealing frock and detection method for the leak detection of air conditioning for automobiles water pipe weld seam - Google Patents
A kind of sealing frock and detection method for the leak detection of air conditioning for automobiles water pipe weld seam Download PDFInfo
- Publication number
- CN109115421A CN109115421A CN201811288627.6A CN201811288627A CN109115421A CN 109115421 A CN109115421 A CN 109115421A CN 201811288627 A CN201811288627 A CN 201811288627A CN 109115421 A CN109115421 A CN 109115421A
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- water pipe
- air
- circlip
- conditioning
- hose
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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
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/225—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for welds
Abstract
The invention provides a kind of sealing frock and detection method for the leak detection of air conditioning for automobiles water pipe weld seam, including end face blocking mechanism, curved hose circlip plugging mechanism, tooling is wrapped up in straight hose circlip plugging mechanism and profiling, end face blocking mechanism is fixed on the endface of air-conditioning water pipe, curved hose circlip plugging mechanism is fixed on the curved hose end of air-conditioning water pipe, straight hose circlip plugging mechanism is fixed on the straight hose end of air-conditioning water pipe, profiling package tooling wraps air-conditioning water pipe to be detected, the collection port for detecting air-conditioning water pipe leak case is provided in profiling package tooling.The invention solves existing air-conditioning plumber, and to fill package volume big, dilutes inert gas concentration, so as to cause the not high problem of detection accuracy.
Description
Technical field
The invention belongs to air conditioning for automobiles water pipe detection technique field, is used for air conditioning for automobiles water pipe more particularly, to one kind
The sealing frock and detection method of weld seam leak detection.
Background technique
Water pipe is the important component of air conditioning for automobiles, is related to the service life of entire air-conditioning system.Water pipe leak can be to row
Automobile belt in sailing carrys out security risk.During water pipe processing and manufacturing, commissure is easy to appear leak source, therefore, water pipe commissure
Sealing propertytest is particularly important.Common detection method has visual bubble method, differential pressure Comparison Method and inert gas collecting method.With
Upper the method is both needed to using sealing frock, i.e., is closely sealed air-conditioning water pipe clamp using fixed device.Traditional technology is by air-conditioning
After water pipe sealing into the water, observation has a bubble-free, bubble method the shortcomings that there are subjectivity, time-consuming, effort；With detection mode
Progress, the use of differential pressure Comparison Method becomes the first choice of many factories, verified differential pressure Comparison Method missing inspection situation for a long time and highlighted；
Since modern air conditioning water pipe testing requirements are high, inert gas collecting method is the general detection method of modern factories, advantage detection essence
Degree is high, high-efficient.
Summary of the invention
In view of this, the invention is directed to a kind of sealing frock for the leak detection of air conditioning for automobiles water pipe weld seam, with
It solves the above problems.
In order to achieve the above objectives, the technical solution of the invention is achieved in that
A kind of sealing frock for the leak detection of air conditioning for automobiles water pipe weld seam, including end face blocking mechanism, curved hose circlip envelope
Tooling is wrapped up in stifled mechanism, straight hose circlip plugging mechanism and profiling, and end face blocking mechanism is fixed at the port of air-conditioning water pipe, curved
Hose circlip plugging mechanism is fixed on the curved hose end of air-conditioning water pipe, and straight hose circlip plugging mechanism is fixed on air-conditioning water pipe
Straight hose end, profiling package tooling wrap air-conditioning water pipe to be detected, are provided in profiling package tooling for detecting sky
The collection port of water transfer pipe leak case.
Further, profiling package tooling is 3D printing forming.
Further, profiling package tooling includes the upper profiling jig and lower profiling jig with air-conditioning water pipe with the shape, upper imitative
Clamp and lower profiling jig wrap air-conditioning water pipe complete packet, profiling wrap up tooling the commissure of air-conditioning water pipe be provided with
The corresponding collection port of weld seam.
Further, profiling package tooling on be respectively arranged with at the port of air-conditioning water pipe, curved hose end, straight hose
The corresponding collection port in end.
Further, end face blocking mechanism, including cylinder is blocked, the middle part of the telescopic rod and lower connecting plate that block cylinder is solid
It connects, a pair of of guiding axis is symmetrically arranged on lower connecting plate, the lower end of guiding axis is fixed on lower connecting plate, the upper end of guiding axis
Upper junction plate is fixed with after bracket, the cylinder ends for blocking cylinder are fixed on bracket, and bracket blocks cylinder for fixed.
Further, upper junction plate is located at bracket and blocks the top of cylinder, and bracket is towards setting on the end face of upper junction plate
It is equipped with lower connector corresponding with the port of air-conditioning water pipe, upper junction plate is towards being provided with and air-conditioning water pipe on the end face of bracket
Being provided on the corresponding upper connector in port, upper connector and lower connector can be by the sealing element of port sealing.
Further, curved hose circlip plugging mechanism is identical with the structure of straight hose circlip plugging mechanism.
Further, curved hose circlip plugging mechanism and straight hose circlip plugging mechanism respectively include clamping jaw cylinder, circlip,
Sealing element and inflating port, inflating port are fixed on the end of curved hose end and straight hose, and the material of circlip is spring steel, and circlip is
Two free ends of cyclic structure, circlip intersect, and two free ends of circlip are respectively arranged with card corresponding with clamping jaw cylinder
Plate is provided with card slot corresponding with snap-gauge on the opposite side wall of the clamping jaw of clamping jaw cylinder, and snap-gauge can be in card slot, folder
When pawl cylinder clamps two snap-gauges, circlip is in relaxation state, and the curved hose or straight hose of air-conditioning water pipe can extend into
In circlip, when clamping jaw cylinder unclamps snap-gauge, circlip is located at working condition, and circlip can clamp curved hose or straight hose.
A kind of detection method of the sealing frock for the leak detection of air conditioning for automobiles water pipe weld seam, specifically includes the following steps:
S1: end face blocking mechanism seals the end face of air-conditioning water pipe, and curved hose circlip plugging mechanism seals curved hose end, directly
Hose circlip plugging mechanism seals straight hose end；
S2: air-conditioning water pipe is vacuumized before detection；
S3: it is filled with hydrogen automatically into air-conditioning water pipe；
S4: profiling package tooling is wrapped into air-conditioning water pipe；
S5: using the hydrogen leakage rate at the collection port of hydrogen detector test commissure, to confirm that air-conditioning water pipe weld seam is
No qualification.
Further, automatic into air-conditioning water pipe after the vacuum degree in air-conditioning water pipe reaches -90KPa step S2, in S3
It is filled with 200KPa hydrogen；Judge whether hydrogen leakage rate is greater than 1 × 10-6Pam3/sec in step S5, to confirm that air-conditioning water pipe welds
Whether seam is qualified.
Compared with the existing technology, a kind of sealing frock for the leak detection of air conditioning for automobiles water pipe weld seam described in the invention
And detection method has the advantage that
(1) the invention solves existing air-conditioning plumber to fill package volume big, dilutes inert gas concentration, thus
The not high problem of caused detection accuracy；
(2) the invention carries out 3D printing profiling for air-conditioning water pipe outer dimension, to reduce package volume, sufficiently stores up
The concentration for absorbing inert gas to improve inert gas is deposited, achievees the purpose that improve detection accuracy；
(3) the invention more can improve inspection close to tested solder joint in the setting collection port close at position while welding, collection port
Survey precision.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide to further understand the invention, present invention wound
The illustrative embodiments and their description made are used to explain the present invention creation, do not constitute the improper restriction to the invention.?
In attached drawing:
Fig. 1 is the structural schematic diagram of air-conditioning water pipe described in the invention embodiment；
Fig. 2 is air-conditioning plumber's assembling structure schematic diagram before the package of the invention embodiment；
Fig. 3 is air-conditioning plumber's assembling structure schematic diagram after the invention embodiment package；
Fig. 4 is the structural schematic diagram of end face blocking mechanism described in the invention embodiment；
Fig. 5 is structural schematic diagram when curved hose circlip plugging mechanism described in the invention embodiment clamps；
Fig. 6 is structural schematic diagram when straight hose circlip plugging mechanism described in the invention embodiment unclamps hose.
Description of symbols:
1, weld seam；2, inflating port；3, end face blocking mechanism；31, cylinder is blocked；32, lower connecting plate；33, upper junction plate；
331, upper connector；34, guiding axis；35, bracket；351, lower connector；4, curved hose circlip plugging mechanism；41, circlip；411,
Snap-gauge；42, clamping jaw cylinder；421, card slot；5, straight hose circlip plugging mechanism；51, circlip；52, clamping jaw cylinder；6, air conditioner water
Pipe；601, port；7, tooling is wrapped up in profiling；701, upper profiling jig；702, lower profiling jig；8, collection port.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
In the description of the invention, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For the limitation to the invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.In the description of the invention, unless separately
It is described, the meaning of " plurality " is two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments creates.
As shown in Figures 1 to 3, a kind of sealing frock for the leak detection of air conditioning for automobiles water pipe weld seam, including end face blocking mechanism
3, tooling 7 is wrapped up in curved hose circlip plugging mechanism 4, straight hose circlip plugging mechanism and profiling.End face blocking mechanism 3 is fixed on sky
At the port 601 of water transfer pipe 6, curved hose circlip plugging mechanism 4 is fixed on the curved hose end of air-conditioning water pipe 6, straight hose circlip
Plugging mechanism is fixed on the straight hose end of air-conditioning water pipe 6.Profiling package tooling 7 wraps air-conditioning water pipe 6 to be detected, profiling
The gas collection mouth 8 for detecting air-conditioning water pipe 6 is provided in package tooling 7.
The upper profiling jig 701 and lower profiling jig profile-followed with air-conditioning water pipe 6 that tooling 7 includes 3D printing is wrapped up in profiling
702.Upper profiling jig 701 and lower profiling jig 702 completely wrap air-conditioning water pipe 6, profiling wrap up tooling 7 with air conditioner water
At the port 601 of pipe 6, corresponding at curved hose end, straight hose end and weld seam 1 it is provided with collection port 8.Work is wrapped up in profiling
7 are filled to reduce package volume, the gas revealed in air-conditioning water pipe 6 wraps up inside tooling 7 all in profiling, and work is wrapped up in such profiling
The gas concentration filled inside 7 is just denseer, and workpiece is kept to be detected under steady state, while being examined convenient for detecting instrument
It surveys, improves the sensitivity of detection accuracy and detection.
As shown in figure 4, end face blocking mechanism 3, including cylinder 31 is blocked, block the telescopic rod and lower connecting plate 32 of cylinder 31
Middle part it is affixed, a pair of of guiding axis 34 is symmetrically arranged on lower connecting plate 32, the lower end of guiding axis 34 is fixed on lower connecting plate
On 32, the upper end of guiding axis 34 is fixed with upper junction plate 33 after passing through bracket 35, and the cylinder ends for blocking cylinder 31 are fixed on branch
On frame 35, bracket 35 blocks cylinder 31 for fixed.Upper junction plate 33 is located at bracket 35 and blocks the top of cylinder 31.
Bracket 35 is towards being provided with lower connector corresponding with the port 601 of air-conditioning water pipe 6 on the end face of upper junction plate 33
351, upper junction plate 33 towards being provided with upper connector 331 corresponding with the port 601 of air-conditioning water pipe 6 on the end face of bracket 35,
The sealing element that port 601 can be sealed is provided on upper connector 331 and lower connector 351.When detection, port 601 is put
It sets on lower connector 351, the telescopic rod for blocking cylinder 31 stretches out, drive of the upper junction plate 33 in the telescopic rod for blocking cylinder 31
Under be moved downwardly until upper connector 331 and lower connector 351 by port 601 seal it is dead until.
As shown in Figure 5,6, curved hose circlip plugging mechanism 4 is identical with the structure of straight hose circlip plugging mechanism, wraps respectively
It includes clamping jaw cylinder (42,52), circlip (41,51), sealing element and inflating port 2, inflating port 2 and is fixed on curved hose end and straight hose
End.The material of circlip (41,51) is spring steel, and circlip (41,51) is cyclic structure, two freedom of circlip (41,51)
End intersects, and two free ends of circlip (41,51) are respectively arranged with snap-gauge 411 corresponding with clamping jaw cylinder (42,52), clamping jaw
It is provided with card slot 421 corresponding with snap-gauge 411 on the opposite side wall of the clamping jaw of cylinder (42,52), snap-gauge 411 can be embedded in
In card slot 421.When clamping jaw cylinder (42,52) clamps two snap-gauges 411, circlip (41,51) is in relaxation state, curved hose or
Person's straight hose can extend into circlip (41,51), when clamping jaw cylinder (42,52) unclamps snap-gauge 411, circlip (41,51) position
Curved hose or straight hose can be clamped in working condition, that is, circlip (41,51).
The working principle of the invention:
The end face of the sealing of end face blocking mechanism 3 air-conditioning water pipe 6, curved hose circlip plugging mechanism 4 seal curved hose end first
Portion, straight hose circlip plugging mechanism seal straight hose end.Air-conditioning water pipe 6 is vacuumized before being detected, to reduce
Hydrogen contained in air improves detection accuracy.It is filled with 200KPa automatically into air-conditioning water pipe 6 after vacuum degree reaches -90KPa
Then profiling package tooling 7 is wrapped air-conditioning water pipe 6, after package, at hydrogen detector test weld seam 1 by hydrogen
Collection port 8 at hydrogen leakage rate whether be greater than 1 × 10-6Pam3/sec, to confirm whether the weld seam 1 of air-conditioning water pipe 6 closes
Lattice.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection scope within.
Claims (10)
1. it is a kind of for air conditioning for automobiles water pipe weld seam leak detection sealing frock, it is characterised in that: including end face blocking mechanism (3),
Curved hose circlip plugging mechanism (4), straight hose circlip plugging mechanism and profiling package tooling (7), end face blocking mechanism (3) are fixed
At the port (601) of air-conditioning water pipe (6), curved hose circlip plugging mechanism (4) is fixed on the curved hose end of air-conditioning water pipe (6)
Portion, straight hose circlip plugging mechanism are fixed on the straight hose end of air-conditioning water pipe (6), and profiling package tooling (7) wraps to be checked
The collection port being provided on tooling (7) for detecting air-conditioning water pipe (6) leak case is wrapped up in the air-conditioning water pipe (6) of survey, profiling
(8)。
2. the sealing frock according to claim 1 for the leak detection of air conditioning for automobiles water pipe weld seam, it is characterised in that: profiling packet
Wrapping up in tooling (7) is that 3D printing shapes.
3. the sealing frock according to claim 1 for the leak detection of air conditioning for automobiles water pipe weld seam, it is characterised in that: profiling packet
Wrapping up in tooling (7) includes the upper profiling jig (701) and lower profiling jig (702) profile-followed with air-conditioning water pipe (6), upper profiling jig
(701) air-conditioning water pipe (6) is completely wrapped with lower profiling jig (702), profiling wraps up tooling (7) in air-conditioning water pipe (6)
Collection port (8) corresponding with weld seam (1) is provided at weld seam (1).
4. the sealing frock according to claim 3 for the leak detection of air conditioning for automobiles water pipe weld seam, it is characterised in that: profiling packet
Wrap up in be respectively arranged on tooling (7) at the port (601) with air-conditioning water pipe (6), curved hose end, straight hose end it is corresponding
Collection port (8).
5. the sealing frock according to claim 1 for the leak detection of air conditioning for automobiles water pipe weld seam, it is characterised in that: end face envelope
Stifled mechanism (3), including cylinder (31) are blocked, the middle part for blocking the telescopic rod and lower connecting plate (32) of cylinder (31) is affixed, lower company
It is symmetrically arranged on fishplate bar (32) a pair of of guiding axis (34), the lower end of guiding axis (34) is fixed on lower connecting plate (32), is led
It is fixed with upper junction plate (33) after passing through bracket (35) to the upper end of axis (34), the cylinder ends for blocking cylinder (31) are fixed on branch
On frame (35), bracket (35) blocks cylinder (31) for fixed.
6. the sealing frock according to claim 5 for the leak detection of air conditioning for automobiles water pipe weld seam, it is characterised in that: upper connection
Plate (33) is located at bracket (35) and blocks the top of cylinder (31), and bracket (35) is towards being provided on the end face of upper junction plate (33)
Lower connector (351) corresponding with port (601) of air-conditioning water pipe (6), upper junction plate (33) is towards on the end face of bracket (35)
It is provided with upper connector (331) corresponding with port (601) of air-conditioning water pipe (6), upper connector (331) and lower connector
(351) sealing element that port (601) can be sealed is provided on.
7. the sealing frock according to claim 1 for the leak detection of air conditioning for automobiles water pipe weld seam, it is characterised in that: curved hose
Circlip plugging mechanism (4) is identical with the structure of straight hose circlip plugging mechanism.
8. the sealing frock according to claim 7 for the leak detection of air conditioning for automobiles water pipe weld seam, it is characterised in that: curved hose
Circlip plugging mechanism (4) and straight hose circlip plugging mechanism respectively include clamping jaw cylinder (42,52), circlip (41,51), sealing element
And inflating port (2), inflating port (2) are fixed on the end of curved hose end and straight hose, the material of circlip (41,51) is spring
Steel, circlip (41,51) are cyclic structure, and two free ends of circlip (41,51) intersect, two free ends of circlip (41,51)
It is respectively arranged with snap-gauge (411) corresponding with clamping jaw cylinder (42,52), the opposite side of the clamping jaw of clamping jaw cylinder (42,52)
Card slot (421) corresponding with snap-gauge (411) is provided on wall, snap-gauge (411) can be in card slot (421), clamping jaw cylinder
When (42,52) clamp two snap-gauges (411), circlip (41,51) is in relaxation state, the curved hose of air-conditioning water pipe (6) or
Straight hose can extend into circlip (41,51), when clamping jaw cylinder (42,52) unclamps snap-gauge (411), circlip (41,51) position
In working condition, circlip (41,51) can clamp curved hose or straight hose.
9. it is a kind of for air conditioning for automobiles water pipe weld seam leak detection sealing frock detection method, which is characterized in that specifically include with
Lower step:
S1: end face blocking mechanism (3) seals the end face of air-conditioning water pipe (6), and curved hose circlip plugging mechanism (4) seals curved hose end
Portion, straight hose circlip plugging mechanism seal straight hose end；
S2: air-conditioning water pipe (6) is vacuumized before detection；
S3: it is filled with hydrogen automatically into air-conditioning water pipe (6)；
S4: profiling package tooling (7) is wrapped into air-conditioning water pipe (6)；
S5: using the hydrogen leakage rate at the collection port (8) at hydrogen detector test weld seam (1), to confirm air-conditioning water pipe (6)
Whether weld seam (1) is qualified.
10. the detection method of the sealing frock according to claim 9 for the leak detection of air conditioning for automobiles water pipe weld seam, feature
It is: step S2, in S3, is filled with automatically after the vacuum degree in air-conditioning water pipe (6) reaches -90KPa into air-conditioning water pipe (6)
200KPa hydrogen；Judge whether hydrogen leakage rate is greater than 1 × 10-6Pam3/sec in step S5, to confirm air-conditioning water pipe (6)
Whether weld seam (1) is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288627.6A CN109115421B (en) | 2018-10-31 | 2018-10-31 | Sealing tool and method for detecting leakage of welding seam of automobile air conditioner water pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288627.6A CN109115421B (en) | 2018-10-31 | 2018-10-31 | Sealing tool and method for detecting leakage of welding seam of automobile air conditioner water pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109115421A true CN109115421A (en) | 2019-01-01 |
| CN109115421B CN109115421B (en) | 2023-06-23 |
Family
ID=64855913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811288627.6A Active CN109115421B (en) | 2018-10-31 | 2018-10-31 | Sealing tool and method for detecting leakage of welding seam of automobile air conditioner water pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109115421B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203532A (en) * | 2021-04-15 | 2021-08-03 | 上海市食品药品包装材料测试所 | Preparation method of injection packaging integrity testing tool based on vacuum attenuation method |
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| CN105403372A (en) * | 2015-12-08 | 2016-03-16 | 天津博益气动股份有限公司 | Sealing tool used for detecting leakage of weld joint of heater inner liner |
| CN206248278U (en) * | 2016-10-31 | 2017-06-13 | 苏州工业园区格比机电有限公司 | Engine cooling apparatus test plugging device |
| CN207540741U (en) * | 2017-11-24 | 2018-06-26 | 昆山阿普顿自动化系统有限公司 | A kind of imitative type sealing clamp of sebific duct sealing test |
| CN108426676A (en) * | 2018-03-10 | 2018-08-21 | 东莞市天合机电开发有限公司 | A kind of lubricating pump of automobile pump chamber device for detecting sealability |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2491163A1 (en) * | 1980-09-30 | 1982-04-02 | Caillau Ets | Ring clamp for housed joint exhaust pipe - uses U=bolt with diverging legs and end stops together with complementary curved strap with side entry |
| CN105403372A (en) * | 2015-12-08 | 2016-03-16 | 天津博益气动股份有限公司 | Sealing tool used for detecting leakage of weld joint of heater inner liner |
| CN206248278U (en) * | 2016-10-31 | 2017-06-13 | 苏州工业园区格比机电有限公司 | Engine cooling apparatus test plugging device |
| CN207540741U (en) * | 2017-11-24 | 2018-06-26 | 昆山阿普顿自动化系统有限公司 | A kind of imitative type sealing clamp of sebific duct sealing test |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113203532A (en) * | 2021-04-15 | 2021-08-03 | 上海市食品药品包装材料测试所 | Preparation method of injection packaging integrity testing tool based on vacuum attenuation method |
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| Publication number | Publication date |
|---|---|
| CN109115421B (en) | 2023-06-23 |
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