CN1975414A - Hole checking method of blow molding article or other plastic hollow body - Google Patents
Hole checking method of blow molding article or other plastic hollow body Download PDFInfo
- Publication number
- CN1975414A CN1975414A CNA200610160495XA CN200610160495A CN1975414A CN 1975414 A CN1975414 A CN 1975414A CN A200610160495X A CNA200610160495X A CN A200610160495XA CN 200610160495 A CN200610160495 A CN 200610160495A CN 1975414 A CN1975414 A CN 1975414A
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- hydrogen
- blow molded
- molded article
- blow
- blow molding
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- NAURQXSCQKYEIC-UHFFFAOYSA-N CCC(C)C[N+]([O-])=O Chemical compound CCC(C)C[N+]([O-])=O NAURQXSCQKYEIC-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air
- B29C2049/4602—Blowing fluids
- B29C2049/4605—Blowing fluids containing an inert gas, e.g. helium
- B29C2049/4608—Nitrogen
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- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention provides a method for examining little holes of blow molding products suiting for automatic blow molding process. Little holes of blow molding product are examined correctly in extremely short second with the present method. The method determines whether blow molding products having little holes by examining hydrogen leaking out from pressed sealing blow molding products with sealing blow molding products blow molded with pressure flow containing hydrogen. Then synthetic resins mixture are smelted and tubular parison is extruded out by extruder, blow molding product is fetched out and pressure flow inlet is closed after parison is blow molded in die with pressure flow containing hydrogen, then whether blow molding products having little holes is examined by examining hydrogen leaking out from pressed sealing blow molding products with sealing pressure flow inlet.
Description
Technical field
The present invention relates to blow molded article that utilizes hydrogen to detect blow molding and the hole checking method whether other plastic hollow bodies produce the blow molded article of aperture.
Background technology
The container of blow molding except that hope wholesomely keeps its inside, also wishes it is closed state, and in the container that doctor Treatment uses and food is used, especially requiring container is the complete closed state.
That is, in the past, even the container that doctor Treatment uses and food is used, the leakage at the sealing position of container, because the degree to 10ppm～50ppm just can not detect, thus must not allow then, still, present situation is, even small aperture also is considered as problem, requiring to leak is zero.
As the aperture detection method of the container of blow molding etc. known following method arranged: after the pressure fluid entrance hole sealing that with blow molding the time, produces, the method that the pressure of the pressure fluid that detection is blown into to container changes or the interior pressure of the escape of liquid when following squeeze receptacle changes (is opened flat 4-369449 communique with reference to the spy, Te Kaiping 3-71011 communique, No. 2699160 communique of patent, special fair 6-67589 communique), the discharge rate of the internal flow when detecting squeeze receptacle or the method that has or not of leakage (are opened the 2004-106237 communique with reference to the spy, special public clear 60-57530 communique), utilize the escape of liquid in the variable color marker detection container method (reference, the spy opens the 2004-42910 communique, the spy opens the 2003-65884 communique).In addition, detect about the hydrogen Leak Detection of fuel cell and hydrogen, known also have a several different methods (open with reference to the spy flat 7-325075 communique, spy are opened flat 6-273574 communique, the spy opens the 11-237366 communique).
Patent documentation 1: the spy opens flat 4-369449 communique
Patent documentation 2: the spy opens flat 3-71011 communique
Patent documentation 3: No. 2699160 communique of patent
Patent documentation 4: special fair 6-67589 communique
Patent documentation 5: the spy opens the 2004-106237 communique
Patent documentation 6: special public clear 60-57530 communique
Patent documentation 7: the spy opens the 2004-42910 communique
Patent documentation 8: the spy opens the 2003-65884 communique
Patent documentation 9: the spy opens flat 7-325075 communique
Patent documentation 10: the spy opens flat 6-273574 communique
Patent documentation 11: the spy opens the 11-237366 communique
In the past, the aperture inspection of the hard blow molded article that flushing cisterns (washer tank) is such, be in parison (parison), to import pressure fluid, press in making and be raised to desired pressure, after stopping pressurization, detect whether pressure changes in it, if interior drops changes, then judging has aperture on the case.Because above-mentioned inspection method must be carried out a series of inspection operations such as taking-up of fixing, pressurize, examine pressure, case of case, need 20 seconds～5 minutes time, even the such flexible container of infusion vessel is pressed in the inspection that changes in addition, need 2～5 minutes time equally in utilizing.Such method, though this aperture detection method from also being used for the automatic blow moulding forming process in the past, the precision that its aperture detects is low, especially can not detect small pore.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of hole checking method of blow molded article, promptly, for blow molded article and other ducted bodies that constitutes by plastics, import and seal the fluid-mixing that contains hydrogen by inside to described ducted body, by detecting contained hydrogen in the fluid-mixing that the outside of ducted body spills, enough utmost point short time of energy, and correctly detect the aperture of plastic hollow body, especially the blow molded article of the blow molding sealing by the pressure fluid that utilization is contained hydrogen, the hydrogen that detection spills to the outside when the blow molded article of crush seal from the outside, or after the blow molded article that utilizes air and other pressure fluid blow moldings is blown into the pressure fluid that contains hydrogen and sealing, extrusion blow molding product from the outside, perhaps stop to contain being blown into state of fluid-mixing of hydrogen and stop to be blown into or continue and be blown into, detect the hydrogen that spills to the outside by blow molded article simultaneously, thereby judge whether blow molded article has aperture.Utilize above detection method, available utmost point short time and correctly detect the aperture of blow molded article, be fit to the automatic blow moulding forming process, the amount of the hydrogen of Shi Yonging is also considerably less simultaneously, even and with hydrogen as medium, do not have danger such as blast, excellent in safety yet.
For achieving the above object, the invention provides a kind of hole checking method, and according to the hole checking method of the blow molded article of invention 2～11 according to invention 1 plastic hollow body.Hole checking method according to invention 1 plastic hollow body, be blow molded article or other ducted bodies that constitutes by plastics, it is characterized in that, import fluid-mixing and the sealing that contains hydrogen to the inside of described ducted body, by detecting contained hydrogen in the fluid-mixing that the outside of ducted body spills, detect the having or not of aperture of ducted body.So-called described plastic hollow body, be application mix fluid in builder, or the back filling that is shaped form utilize vacuum forming, the plastic hollow body of builder shaping such as shapings of calming the anger, plastic hollow body that plastic material heat seal such as film sheet is formed.
Hole checking method according to invention 2 blow molded article, it is characterized in that, sealing utilization is contained the blow molded article of the pressure fluid blow molding of hydrogen, detects the hydrogen that spills to the outside when the blow molded article of crush seal from the outside, judges that blow molded article has pore-free.
Hole checking method according to invention 3 blow molded article, it is characterized in that, after in to the blow molded article that utilizes air or other pressure fluid blow moldings, being blown into the fluid-mixing and sealing that contains hydrogen, extrusion blow molding product or under the situation of the state that is blown into of the fluid-mixing that keeps containing hydrogen, stop to be blown into or continue and be blown into from the outside, detect the hydrogen that spills to the outside from blow molded article simultaneously, judge whether blow molded article has aperture.
Hole checking method according to invention 4 blow molded article, it is characterized in that, with the synthetic resin melting mixing and extrude the parison of tubular by extruder, then utilize contain hydrogen pressure fluid in mould with after the parison blow molding, take out blow molded article from mould, and the pressure fluid entrance hole of sealing during blow molding, by detecting the hydrogen that spills to the outside when blow molded article of pressure fluid entrance hole has been sealed in extruding from the outside, judge whether blow molded article has aperture.
Hole checking method according to invention 5 blow molded article, in invention 4 described methods, it is characterized in that, make the hydrogen detection probe near to or in contact with the sealing position of the pressure fluid entrance hole of blow molded article or be configured to approachingly, detect when the extrusion blow molding product hydrogen that the sealing position by the pressure fluid entrance hole spills.
According to the hole checking method of invention 6 blow molded article, in invention 2 or 4 described methods, it is characterized in that the hydrogen concentration of the pressure fluid that contains hydrogen that blow molding is used is at least more than 0.5ppm.
According to the hole checking method of invention 7 blow molded article, in invention 1 or 3 described methods, it is characterized in that the fluid-mixing that contains hydrogen is will to contain the mixed gas of hydrogen and air mixed and make the fluid-mixing of hydrogen concentration more than 0.5ppm.
According to the pore inspection method of invention 8 blow molded article, in invention 2,4 or 6 described methods, it is characterized in that the pressure fluid that contains hydrogen that blow molding is used is to contain the mixed gas of hydrogen and the fluid-mixing of air mixed.
According to the hole checking method of invention 9 blow molded article, in invention 7 or 8 described methods, it is characterized in that the mixed gas that contains hydrogen is the mixed gas that mixes hydrogen in non-combustible gas such as nitrogen.
Pore inspection method according to invention 10 blow molded article, in invention 9 described methods, it is characterized in that, the volume ratio that contains the mixed gas of hydrogen is that nitrogen is 90～99%, hydrogen is 10～1%, and the volume ratio of the pressure fluid that contains hydrogen that blow molding is used is below 5 parts with respect to 100 parts of air, described mixed gas.
According to the hole checking method of invention 11 blow molded article, in invention 2,3,4,5,6,7,8,9 or 10 described methods, it is characterized in that blow molded article is a flexible container.
According to the present invention, for blow molded article or other ducted bodies that constitutes by plastics, import fluid-mixing and the sealing that contains hydrogen by inside to described ducted body, detection is contained hydrogen in the fluid-mixing that the outside of ducted body spills, can enough utmost point short time and correctly detect the aperture of plastic hollow body.
Especially the blow molded article that contains the pressure fluid blow molding of hydrogen by sealing utilization, the hydrogen that detection spills to the outside when the blow molded article of crush seal from the outside, or the blow molded article that utilizes air or other pressure fluid blow moldings is blown into the pressure fluid that contains hydrogen, and after the sealing from the outside extrusion blow molding product or keeping contain to stop to be blown into or continue under the situation of the state that is blown into of fluid-mixing of hydrogen and be blown into, detect the hydrogen that spills to the outside from blow molded article simultaneously, judge whether blow molded article has aperture.Like this, available utmost point short time and correctly detect the aperture of blow molded article, can be used for detecting the non-detectable small pore of conventional art, be fit to the automatic blow moulding forming process, the amount of the hydrogen of Shi Yonging is also considerably less simultaneously, even as medium, do not have danger such as blast with hydrogen yet, can obtain the effect of excellent in safety.
Description of drawings
Fig. 1 is the specification figure of the hole checking method of blow molded article of the present invention.
Fig. 2 is the key diagram of the manufacturing process of the used pressure fluid of the hole checking method of blow molded article.
Fig. 3 is the key diagram of the structure of expression blow-moulding machine shown in Figure 2.
Among the figure: 1-travelling belt, 2-flexible container, 3-alignment process, 4-top stationary fixture, 5-bottom stationary fixture, 6-hydrogen detecting device, 7-hydrogen detection probe, the position that is melted sealing of 8-pressure fluid entrance hole, 9-container pressing body, the 10-packaging process, the 11-substandard products are got rid of mechanism, 12-substandard products collection unit, 13-mixed gas supplying sector, 14-hydrogen, 15-nitrogen, the 16-mixed gas, 17-mixed gas gas-holder, 18-blow molding operation, 19-blow-moulding machine, 20-pressure air feed mechanism, the 21-mixer, 22-filtrator, 23-spin stand platform, 24-blow molding mould, the 25-suspender, 26-oral area, the connector of 27-hollow container, the 28-extrusion head, the 29-sealer, the pressure fluid entrance hole that produces during the 30-blow molding, the slip hot plate of 31-double as cutting machine, the go ahead of the rest hollow container of operation of a1-, the hollow container of a2-subsequent handling.
Embodiment
Fig. 1 is that manufacturing process's key diagram, Fig. 3 of the used pressure fluid of the specification figure of the hole checking method of blow molded article of the present invention, hole checking method that Fig. 2 is blow molded article is the key diagram of the formation of expression blow-moulding machine shown in Figure 2.
In Fig. 1, the 1st, travelling belt is melted sealing by flexible container 2 its pressure fluid entrance hole in blow-moulding machine of blow-moulding machine blow molding, and supplies with and give on the travelling belt 1 of alignment process 3, is transmitted successively by travelling belt 1.Possess the top stationary fixture 4 at the top of supporting flexible container 2 and the bottom stationary fixture 5 of support bottom on the travelling belt 1, and the flexible container 2 of being taken out of is maintained fixed posture by above-mentioned top stationary fixture 4 and bottom stationary fixture 5.Blow molding in the blow-moulding machine utilizes the pressure fluid that contains hydrogen to carry out.
In Fig. 1, the 6th, hydrogen detecting device, the 7th, hydrogen detection probe (hydrogen sensor), hydrogen detection probe 7 is configured in the top of the flexible container 2 that is transmitted by travelling belt 1, promptly be configured on the 8 corresponding positions, the position that is melted sealing with the pressure fluid entrance hole, when detecting, make it near described position 8, when not detecting away from.What it was suitable is 0.5mm～5mm degree near distance, but hydrogen detection probe 7 is contacted with the described position 8 of pressure fluid entrance hole.The 9th, the container pressing body, aperture at configuration hydrogen probe 7 detects in the operation, the outside of extruding flexible container 2, press liter in it by making, if the position at the pressure fluid entrance hole that is melted sealing produces aperture, the part of the pressure fluid that contains hydrogen that then imports when blow molding will spill, if but do not produce aperture, just there be not spilling of pressure fluid, detect the hydrogen of the fluid that spills thus by hydrogen probe 7, utilize the leakage or the detection of hydrogen detecting device 6 instrumentation hydrogen to have or not spilling of hydrogen, judge to have or not aperture.
Detect in the operation at described aperture, do not detect the flexible container 2 of aperture, directly send packaging process 10 to, but detect the flexible container 2 of aperture by travelling belt 1, the air of getting rid of mechanism 11 by substandard products blows out, and is housed in the substandard products collection unit 12.
In the present invention, the pressure fluid that contains hydrogen that blow molding is used is supplied with by manufacturing process shown in Figure 2.That is, in mixed gas supplying sector (mixed gas is connected gas etc.) 13, the mixed gas 16 that is mixed with hydrogen 14 and nitrogen 15 is supplied with by mixed gas gas-holder 17.About the nitrogen of mixed gas 16 and the volume ratio of hydrogen, nitrogen is 95%, hydrogen is 5%.The nitrogen of mixed gas 16 so long as the gas of incombustibility just can, beyond denitrogenating, also can use argon gas or neon etc., but since nitrogen be the most stable and cheap, so the most suitable.
In the blow molding operation 18 of the described flexible container 1 of blow molding, possess blow-moulding machine 19, possess as the pressure air feed mechanism 20 of pressure fluid supply pressure air in this blow-moulding machine 19 and make the mixed gas that contains hydrogen in the described mixed gas gas-holder 17 be blended in mixer 21 from the pressure air that pressure air feed mechanism 20 is supplied with.Supply with the blow molding used pressure fluid that contain hydrogen via filtrator 22 to blow-moulding machine 19 from mixer 21.Pressure air feed mechanism 20 is by formations such as purifying machine, compressor, dryer, in-line filter, air tank, micro-sprayer (micro mist), sterilizing filter, millipore filters.
As shown in Figure 3, blow-moulding machine 19 shown in Figure 2 is swinging blow-moulding machine (automatic blow moulding forming machines).This blow-moulding machine 19 is equipped a plurality of blow molding moulds 23 on spin stand platform 22, in spin stand platform 22 rotary courses, by each blow molding mould 23, connector 27 to hollow container carries out blow molding, wherein, the connector 27 of described hollow container is connected via the waste part 26 that the oral area 25 of the hollow container a2 of suspender 24 that makes the hollow container a1 of operation in advance and subsequent handling becomes one.The hollow container a1 of operation and the hollow container a2 of subsequent handling become flexible container shown in Figure 12 in advance.
The 28th, extrusion head is used for the parison to each shaping die 23 supply tubulars.The 29th, sealer possesses in the pressure fluid entrance hole 30 fusions sealing that is used for producing when the blow molding of hollow container the slip hot plate 31 of double as cutting machine.
In the present invention, as long as the hydrogen concentration of the pressure fluid that blow molding is used is owing at least more than 0.5ppm, just can detect the hydrogen that spills from blow molded article 2 really, so can cut down the use amount of hydrogen significantly.Interior pressure when blow molded article 2 is pushed outside it is 0.2～5kg/cm
2, be preferably 2～3kg/cm
2Scope.
(embodiment)
Below, check example as the aperture of flexible container, the test example of infusion bottle is shown.
Material: low density polyethylene
Density: 0.921g/cm
3
MFR (load: 2.16kg): 1.3g/10min (230 ℃)
MT：0.4(190℃)
Following table is represented test findings.
Table 1
| Sample | Leakage rate cc/min | Detection limit ppm | Could detect |
| (1) | 32 | 157 | ○ |
| (2) | 20 in bubble | 13 | ○ |
| (3) | 4.0 | 113 | ○ |
| (4) | Can not measure | 19 | ○ |
| (5) | 11.0 | 137 | ○ |
| (6) | 15 | 410 | ○ |
| (7) | 13.7 | 240 | ○ |
This test findings shows, by infusion bottle being applied the pressure of 0.3MPa, even little sample (2), (4) of leakage rate also can be detected and are detection limit 13～19ppm.In the table, zero expression can detect.
Then, check example, the test example is shown with regard to the flushing cisterns (washer tank) of automobile as the aperture of hard container.
Tankage: 1.1L
Material: polypropylene
Density: 0.9g/cm
3
MFR (load: 2.16kg): 0.85g/10min (230 ℃)
MT：7.0(190℃)
Flushing cisterns shown in this test example utilizes the air blow molding as pressure fluid, when aperture is checked, oral area by flushing cisterns imports the mixed gas that contains hydrogen, bolt sealing then, the flushing cisterns of this state is placed in the enclosure space (in the cavity), the leakage of mixed gas is detected by its hydrogen that contains.When not detecting hydrogen, be judged to be no aperture, when detecting hydrogen, be judged to be aperture.
Claims (11)
1. the hole checking method of a plastic hollow body, described ducted body is blow molded article or other ducted bodies that is made of plastics, it is characterized in that, import fluid-mixing and the sealing that contains hydrogen to the inside of described ducted body, by detecting contained hydrogen in the fluid-mixing that the outside of ducted body spills, judge whether ducted body has aperture.
2. the hole checking method of a plastic hollow body, it is characterized in that, utilization is contained the blow molded article sealing of the pressure fluid blow molding of hydrogen, the hydrogen that spills to the outside when detecting the blow molded article of crush seal from the outside judges whether blow molded article has aperture.
3. the hole checking method of a blow molded article, it is characterized in that, after in to the blow molded article that utilizes air or other pressure fluid blow moldings, being blown into the fluid-mixing and sealing that contains hydrogen, extrusion blow molding product or under the situation of the state that is blown into of the fluid-mixing that keeps containing hydrogen, stop to be blown into or continue and be blown into from the outside, detect the hydrogen that spills to the outside from blow molded article simultaneously, judge whether blow molded article has aperture.
4. the hole checking method of a blow molded article, it is characterized in that, with the synthetic resin melting mixing and extrude the parison of tubular by extruder, then utilize contain hydrogen pressure fluid in mould with after the parison blow molding, take out blow molded article from mould, and the pressure fluid entrance hole of sealing during blow molding, by detecting the hydrogen that spills to the outside when blow molded article of pressure fluid entrance hole has been sealed in extruding from the outside, judge whether blow molded article has aperture.
5. the hole checking method of blow molded article as claimed in claim 4, it is characterized in that, make the hydrogen detection probe near to or in contact with the sealing position of the pressure fluid entrance hole of blow molded article or be configured to approachingly, detect when the extrusion blow molding product hydrogen that the sealing position by the pressure fluid entrance hole spills.
6. as the hole checking method of claim 2 or 4 described blow molded articles, it is characterized in that the hydrogen concentration of the pressure fluid that contains hydrogen that blow molding is used is at least more than 0.5ppm.
7. as the hole checking method of claim 1 or 3 described blow molded articles, it is characterized in that the fluid-mixing that contains hydrogen is will to contain the mixed gas of hydrogen and air mixed and make the fluid-mixing of hydrogen concentration more than 0.5ppm.
8. as the pore inspection method of claim 2,4 or 6 described blow molded articles, it is characterized in that the pressure fluid that contains hydrogen that blow molding is used is to contain the mixed gas of hydrogen and the fluid-mixing of air mixed.
9. as the hole checking method of claim 7 or 8 described blow molded articles, it is characterized in that the mixed gas that contains hydrogen is the mixed gas that mixes hydrogen in non-combustible gas such as nitrogen.
10. the pore inspection method of the described blow molded article of claim 9, it is characterized in that, the volume ratio that contains the mixed gas of hydrogen is that nitrogen is 90～99%, hydrogen is 10～1%, and the volume ratio of the pressure fluid that contains hydrogen that blow molding is used is below 5 parts with respect to 100 parts of air, described mixed gas.
11. the hole checking method as claim 2,3,4,5,6,7,8,9 or 10 described blow molded articles is characterized in that blow molded article is a flexible container.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005342857 | 2005-11-28 | ||
| JP2005-342857 | 2005-11-28 | ||
| JP2005342857A JP5073198B2 (en) | 2005-11-28 | 2005-11-28 | Pinhole inspection method for blow molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1975414A true CN1975414A (en) | 2007-06-06 |
| CN1975414B CN1975414B (en) | 2012-01-25 |
Family
ID=38125631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610160495XA Expired - Fee Related CN1975414B (en) | 2005-11-28 | 2006-11-28 | Hole checking method of blow molding article |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5073198B2 (en) |
| CN (1) | CN1975414B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076636A (en) * | 2014-09-15 | 2017-08-18 | 英福康有限责任公司 | Membrane well with the measurement volume for thick leak-testing |
| CN109000864A (en) * | 2018-04-23 | 2018-12-14 | 苏州澳昆智能机器人技术有限公司 | Ice cream packaging bag leak detection method and detection system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759908B (en) * | 2013-12-06 | 2016-02-10 | 安徽巨一自动化装备有限公司 | Small-bore closed container pressure loss detecting device |
| JP7288578B2 (en) * | 2019-05-31 | 2023-06-08 | キョーラク株式会社 | Molded body inspection method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6138677A (en) * | 1984-07-31 | 1986-02-24 | キヨ−ラク株式会社 | Method and device for inspecting flexible hollow vessel |
| JPH0737912B2 (en) * | 1987-09-22 | 1995-04-26 | 食品産業オンラインセンサー技術研究組合 | Inspection method for leaks in nitrogen gas filled packages |
| JP3303234B2 (en) * | 1997-09-17 | 2002-07-15 | 株式会社吉野工業所 | Inner container leak inspection method for double blow molded bottles |
| ITPN20020089A1 (en) * | 2002-11-15 | 2004-05-16 | Sipa Spa | PLANT AND PROCEDURE WITH SPECIFIC DEVICE FOR |
-
2005
- 2005-11-28 JP JP2005342857A patent/JP5073198B2/en not_active Expired - Fee Related
-
2006
- 2006-11-28 CN CN200610160495XA patent/CN1975414B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076636A (en) * | 2014-09-15 | 2017-08-18 | 英福康有限责任公司 | Membrane well with the measurement volume for thick leak-testing |
| US10309862B2 (en) | 2014-09-15 | 2019-06-04 | Inficon Gmbh | Film chamber with measuring volume for gross leak detection |
| CN109000864A (en) * | 2018-04-23 | 2018-12-14 | 苏州澳昆智能机器人技术有限公司 | Ice cream packaging bag leak detection method and detection system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1975414B (en) | 2012-01-25 |
| JP5073198B2 (en) | 2012-11-14 |
| JP2007144819A (en) | 2007-06-14 |
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Granted publication date: 20120125 Termination date: 20151128 |