CN2750316Y - Gas transmissibility analyzer - Google Patents
Gas transmissibility analyzer Download PDFInfo
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- CN2750316Y CN2750316Y CN 200420061664 CN200420061664U CN2750316Y CN 2750316 Y CN2750316 Y CN 2750316Y CN 200420061664 CN200420061664 CN 200420061664 CN 200420061664 U CN200420061664 U CN 200420061664U CN 2750316 Y CN2750316 Y CN 2750316Y
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Abstract
The utility model provides a gas permeability analyzer which is composed of a gas permeation chamber, a gas storing container, a gas inlet pipe system, an exhausting pipe system, a micro adjusting deflating system, a vacuum testing meter and a box. The utility model has the technical points that the outer ring surfaces of an upper cover plate and a base of the gas permeation chamber are provided with a metallic knife-edge seal or a metallic arc opening seal, and the upper cover plate and the base are used for clamping a groove of a vacuum sealing rubber ring of a sample film to be measured; the upper cover plate and the base of the gas permeation chamber are connected into a whole by a tightening outer thread sleeve; the gas permeation chamber adopts an ultra-high vacuum baffle valve and an ultra-high vacuum insert plate valve; the vacuum testing meter is a capacitance thin film vacuum meter. The gas permeability analyzer has accurate tests and high precision, and can avoid the contamination brought by using a mercury manometer; the operation is convenient and the efficiency is high, and moreover, the gas permeability analyzer can test the gas penetrability of materials with high barrier properties; therefore, the gas penetrability analyzer provides an important, objective and exact supplementary instrument for the research and development of a new high-barrier material, package designing sorting and quality detection and monitoring during the production of packages.
Description
One, technical field
The utility model belongs to and adopts pressure differential method to measure the gas permeation rate equipment technical field, is specifically related to a kind of testing tool of measuring films such as polymer film, thin slice, composite membrane, flaky material to various noncorrosive gases permeabilities.
Two, background technology
Various materials all have certain permeability or barrier to gas, and different materials permeability or barrier to gas with various under different condition differs bigger.Polymeric material and compound substance are often used as packing and container material, when it is used as extra package or vessel prepd, particularly products to be packaged to certain gas ratio when responsive, accurately measures this material the barrier of certain gas is just seemed very important.Select material when simultaneously the accurate mensuration of material gas transmitance also being package design, carry out the important means of quality testing control in the packaging product production run.
At present, the method for testing to the gas permeation rate of material mainly contains pressure differential method, volumetric method, concentration difference method, radiant heat method and chromatography etc.China adopts is to use more pressure differential method, and to this, country has also issued corresponding standard (GB/T1038-2000), has provided the ultimate principle of this method test in this standard.According to this principle, domestic development and production the permeability apparatus of multiple model, as the TQY-2 type Permeability gauge of University of Fuzhou light industry system, the BTY-B1 type of blue streak mechanical ﹠ electrical technology centre of development, the Jinan tester of breathe freely, 8000 type oxygen of mark border, Guangzhou Coating Equipment Co., Ltd are through analyzer.These analyzer ubiquity troublesome poerations, inefficiency, poor sealing can not the real gas penetration potential of reaction material, precision is low, defectives such as narrow application range, moreover, have because of using mercury manometer, easily pollute sample film surface and environment, and temperature influence is bigger; Have because of instrument uses glass article, damaged easily.But no matter the sort of analyzer all is difficult to accurately measure some high barrier materials that occur in recent years, as the gas permeation rate of PEN, ethylene-vinyl alcohol copolymer, liquid crystal polymer etc.
In order to satisfy the great demand that the high-barrier polymeric material continually develop uses at packaging industry, domestic successively from state's imports such as U.S., day, morals multiple air permeability tester device.But because each national accepted standard differs, the structure of air permeability tester, principle are also far from each other.Adopt pressure differential method as U.S. ASTM D1434-75 standard, this standard is similar to the GB1038-70 standard of China, its gaseous tension is measured the employing mercury manometr of carrying on as before, so still have low precision according to the instrument of this principle production, the defective of easy contaminated environment.In addition, the import equipment price general charged all compares expensive, the testing expense height, and the instrument quantity of being bought is less relatively, can not satisfy domestic actual needs far away.
Three, summary of the invention
The purpose of this utility model is to overcome the defective that prior art exists, and a kind of measuring accuracy height, pollution-free is provided, and price is relatively low, applicable to the analyzer of high barrier polymeric material gas permeation rate test.
The gas permeation rate analyzer that the utility model provides is made up of gas permeable vents, air reservoir, air inlet pipeline system, the pipe system of finding time, fine setting blow-off system, vacuum test meter and cabinet.Gas permeable vents is installed on the operating table surface of cabinet, inlet end links to each other with the air inlet pipeline system by connecting pipe, test lead is positioned at cabinet and links to each other with the vacuum test meter, also link to each other simultaneously with the pipe system of finding time, air reservoir links to each other with the air inlet pipeline system, and the fine setting blow-off system links to each other with the pipe system of finding time with the air inlet pipeline system respectively.Various valve knobs in air inlet pipeline system, the pipe system of finding time, fine setting blow-off system, the vacuum test meter, the outside surface that Displaying Meter all is positioned at cabinet, remainder and air reservoir are installed in the cabinet together, wherein gas permeable vents is more than two, and the test lead that each gas permeable vents links to each other with the vacuum test meter of coupling adopts band metal edge of a knife flange-interface to be connected or is weldingly connected with it; One gas admittance valve is installed on the air reservoir air inlet pipeline, a tensimeter is installed on the outlet pipe; The air inlet pipeline system is made up of inflation main valve, branch valve and pipeline, the inflation main valve has two, be installed on the inflation house steward, link to each other with the fine setting blow-off system by a three-way pipe therebetween, inflation divides valve to be positioned at after the inflation main valve, its number and gas permeable vents number coupling are installed in parallel in the inflation of vertical parallel arrangement and are in charge of; The pipe system of finding time is made up of vacuum meter, stop valve, ultrahigh vacuum valve and the pipeline of finding time, find time house steward and find time to be in charge of of pipeline branch finds time, vacuum meter, stop valve are installed in series in the house steward that finds time, the house steward that finds time who is positioned at stop valve one side connects pumped vacuum systems, ultrahigh vacuum valve is installed in and is positioned at the vacuum meter one side house steward that finds time and goes up finding time that vertical parallel arranges and be in charge of, its number and gas permeable vents number coupling, and vacuum meter with find time to be in charge of between the house steward that finds time on have a three-way pipe to link to each other with the fine setting blow-off system; The fine setting blow-off system is made up of fine setting air release, shutdown valve and pipeline, fine setting air release, shutdown valve are installed in series in pipeline, link to each other with the air inlet pipeline system by a three-way pipe therebetween, the pipeline that is positioned at fine setting air release one side connects atmosphere, and the pipeline that is positioned at shutdown valve one side connects the pipe system of finding time; Vacuum test is counted the capacitor thin film vacuum meter.
Because the utility model has at first substituted the mercury manometer that prior art adopts with the capacitor thin film vacuum meter, thereby the pollution of having avoided mercury to bring, and precision also greatly improves; The test lead employing band metal edge of a knife that next each gas permeable vents links to each other with the vacuum test meter of coupling) flange-interface is connected, be that an annular protrusion that wedge angle is relative is respectively arranged on the flange joint face, and also be provided with metal o-ring between the relative annular protrusion of wedge angle, make the relatively poor face seal of original sealing effectiveness change the better linear sealing of sealing effectiveness into, or be weldingly connected, improved the accuracy of test; The 3rd, vacuum valve adopts ultrahigh vacuum valve, solved the problem of prior art gas permeable vents test lead sealing difference, enable the air penetrability that reflects that high barrier material is faint, thereby, the utility model for research and develop carry out when new high barrier material, package design selection and packing material are produced the quality testing monitoring provide one important and objective, test supplementary instrument accurately.
In order further to improve measuring accuracy of the present utility model, the scope of application and work efficiency, the utility model has also been taked following technical measures:
1, the ultrahigh vacuum valve of selecting for use is ultrahigh vacuum flapper valve or ultrahigh vacuum push-pull valve, and its leak rate requires≤10
-7Pa.L/S or≤10
-8Pa.L/S, gas permeable vents be three or three multiple several;
2, the upper cover plate of gas permeable vents is connected by fastening external thread sleeve with base, fastening external thread sleeve is the open convex housing in a bottom, center of top has through hole, have screw thread on the lower inner wall, when the connecting pipe of gas permeable vents upper cover plate center of top passes fastening external thread sleeve center of top through hole, this screw thread just can with the threaded engagement on gas permeable vents upper cover plate and the base outer wall, evenly stressed around when tightening, structure is fastenedly connected and is one;
3, gas permeable vents upper cover plate and base are placed on the outside anchor ring that clamping treats test sample film vacuum seal rubber band groove and are the metal edge of a knife or the sealing of metal nock, the metal edge seal is on upper cover plate and the chassis outer side anchor ring respectively an annular protrusion that wedge angle is relative, be provided with O-ring seal between the relative annular protrusion of wedge angle, or be to be an annular wedge angle projection on the upper cover plate, on the base two annular wedge angle projectioies, after gas permeable vents installs, the wedge angle of the annular protrusion on the upper cover plate just is arranged in the groove that the second ring wedge angle convexes to form on the base, and is being provided with metal o-ring between the annular wedge angle projection up and down.The form of metal nock also is above two kinds, and the wedge angle that different is in the said structure has become fillet, also is provided with metal o-ring between the fillet projection.If during test highly-breathable (or low barrier) material, can change General Purpose Rubber circle hermetically-sealed construction for reducing cost into herein.
Four, description of drawings
Structural representation when Fig. 1 is three for the utility model gas permeable vents;
Fig. 2 is the sectional structure synoptic diagram of the gas permeable vents of the utility model embodiment 1;
Fig. 3 is the sectional structure synoptic diagram of the gas permeable vents of the utility model embodiment 2.
Five, embodiment
Provide embodiment so that the utility model is carried out concrete description below in conjunction with accompanying drawing.Be necessary to be pointed out that at this following examples only are used for that the utility model is described in further detail; can not be interpreted as restriction to the utility model protection domain; some nonessential improvement and adjustment that the professional and technical personnel in this field makes according to above-mentioned content of the present utility model still belong to protection domain of the present utility model.
Embodiment 1
The gas permeation rate analyzer that present embodiment provides is made up of gas permeable vents 1, air reservoir 16, air inlet pipeline system, the pipe system of finding time, fine setting blow-off system, vacuum test meter 31 and cabinet 32 as shown in Figure 1.
Gas permeable vents 1 is to be made of upper cover plate 2, base 5 and fastening external thread sleeve 13 as shown in Figure 2.Middle part, upper cover plate 2 plate bottom surfaces is the stepped cavity of an indent, the plate bottom surface in the cavity outside has places the groove that test sample film vacuum seal rubber band 8 is treated in clamping, in order to prevent to test, the inboard right angle of groove is too sharp along the limit, test sample film 12 is treated in damage, and the utility model 3 is designed to its groove inboard the cross section and is circular arc along the limit.There is a draft tube 4 of extending vertically upward at the middle part on the upper cover plate 2, and this draft tube 4 communicates with cavity.Base 5 upper surface middle part also are the stepped cavity of an indent, the corresponding position that the base upper surface in the cavity outside and upper cover plate bottom surface have groove also has places the groove that test sample film vacuum seal rubber band 8 is treated in clamping, base middle part down has a main lumen 6 that extends vertically downward, this main lumen 6 communicates with base cavity pocket, its end is a three-way pipe, one end 7 links to each other with vacuum test meter 31, and an end links to each other with the pipe system of finding time.An end 7 that links to each other with vacuum test meter 31 and the link of vacuum test meter 31 are metal edge of a knife flange-interface, and an annular protrusion 10 that wedge angle is relative is promptly respectively arranged on both flange joint faces, and also are provided with O-ring seal between the relative annular protrusion 10 of wedge angle.During test, treat that test sample film 12 is clamped between the vacuum seal rubber band 8 in upper cover plate 2, base 5 grooves, also is placed with a passive dividing plate 9, uniform through hole on this dividing plate 9 on the first order ladder step of its underpart base.In order to satisfy the air penetrability requirement of measuring high barrier material, further improve the sealing of gas permeable vents, present embodiment gas permeable vents upper cover plate 2 and base 5 placed on the outside anchor ring that clampings treat test sample film vacuum seal rubber band 8 grooves and is designed to metal edge of a knife hermetically-sealed construction, being specially on the upper cover plate 2 is an annular wedge angle projection 10, on the base 5 two annular wedge angle projectioies 10, after gas permeable vents 1 installs, the wedge angle of the annular protrusion 10 on the upper cover plate 2 just is arranged in the groove that second ring wedge angle projection 10 forms on the base 5, and is being provided with O-ring seal 11 between the annular wedge angle projection 10 up and down.O-ring seal 11 is selected the oxygen-free copper O-ring seal for use.But the air penetrability if not measuring high barrier material just can not be provided with metal edge of a knife hermetically-sealed construction.Fastening external thread sleeve 13 is the open convex housing in a bottom, center of top has through hole, have screw thread on the lower inner wall, when the draft tube 4 of gas permeable vents upper cover plate 2 center of top is passed fastening external thread sleeve 13 center of top through holes, this screw thread just can make it to be fastenedly connected and be one with the threaded engagement on gas permeable vents upper cover plate 2 and base 5 outer walls.Adopt external thread sleeve 13 to replace the bolt of prior art or screw to connect, avoided the fastening trouble of bolt or screw, cause gas permeable vents 1 all directions discontinuity equalization easily, easily the disadvantage of gas leakage.It is more convenient, laborsaving to consider to screw external thread sleeve 13, is evenly equipped with fastening bayonet socket 14 around the outer wall middle part of fastening external thread sleeve 13, and this bayonet socket 14 can have the structure matching of a projection with certain Wrench head, makes it easier and screws.Gas permeable vents 1 present embodiment is three, be installed on side by side on the operating table surface of cabinet 32, each draft tube 4 links to each other with the air inlet pipeline system by connecting pipe 15, and the promptly main lumen 6 of each test lead is positioned at cabinet 32 and links to each other with each vacuum test meter 31, also links to each other with the pipe system of finding time simultaneously.Connecting pipe 15 between draft tube 4 and the air inlet pipeline system adopts flexible pipe, specifically can select corrugated stainless steel tubing for use.
The air inlet pipeline system also is positioned at cabinet 32, form by inflation main valve 19, branch valve 21 and pipeline 20,22, inflation main valve 19 has two, be installed on the inflation house steward 20, link to each other with the fine setting blow-off system by a three-way pipe therebetween, inflation divides valve 21 to be positioned at after the inflation main valve 19, its number and gas permeable vents 1 number coupling, be installed in parallel the inflation of arranging in vertical parallel and be in charge of on 22, inflation is in charge of 22 the mouth of pipe of giving vent to anger and is positioned on the cabinet of erectting at cabinet 32 operating table surface rear portions.
The pipe system of finding time also is positioned at cabinet 32, is made up of vacuum meter 23, stop valve 24, ultrahigh vacuum valve 25 and the pipeline 26,27 of finding time.The find time house steward 26 and find time to be in charge of 27 of pipeline branch that finds time, vacuum meter 23, stop valve 24 are installed in series in the house steward 26 that finds time, and the house steward 26 that finds time who is positioned at stop valve 24 1 sides can external pumped vacuum systems.Ultrahigh vacuum valve 25 be installed in be positioned at that vacuum meter 23 1 sides find time that house steward goes up that vertical parallel arranges find time to be in charge of on 27, its number is mated with gas permeable vents 1 number, the ultrahigh vacuum valve 25 of present embodiment is selected the ultrahigh vacuum valve flapper valve for use, leak rate≤10
-7Pa.L/S.On vacuum meter 23 and the house steward 26 that finds time who finds time to be in charge of between 27, also have a three-way pipe to link to each other with the fine setting blow-off system.
The fine setting blow-off system also is positioned at cabinet 32, form by fine setting air release 28, shutdown valve 29 and pipeline 30, fine setting air release 28, shutdown valve 29 are installed in series in pipeline 30, link to each other with the air inlet pipeline system by a three-way pipe therebetween, be positioned at the pipeline 30 external atmosphere of fine setting air release 28 1 sides, the pipeline 30 that is positioned at shutdown valve 29 1 sides connects the pipe system of finding time.
Various valve knobs in above air inlet pipeline system, the pipe system of finding time, fine setting blow-off system, the vacuum test meter 31, the outside surface that Displaying Meter all is positioned at cabinet are so that operation and observing.
Embodiment 2
Present embodiment removes the welding that is connected to of the test lead of main lumen 6 and vacuum test meter 31; Ultrahigh vacuum valve 25 is selected the ultrahigh vacuum push-pull valve for use, leak rate≤10
-8Pa.L/S; Gas permeable vents upper cover plate and base are placed on the outside anchor ring that clamping treats test sample film vacuum seal rubber band groove and are designed to the sealing of metal nock, version is to be an annular fillet projection 10 on the upper cover plate 2, on the base 5 two annular fillet projectioies 10, be provided with outside the metal o-ring (see figure 3) between the relative annular protrusion of fillet, all the other are identical with embodiment 1, slightly.
Claims (10)
1, a kind of gas permeation rate analyzer, be by gas permeable vents (1), air reservoir (16), the air inlet pipeline system, the pipe system of finding time, the fine setting blow-off system, tester (31) and cabinet (32) are formed, gas permeable vents (1) is installed on the operating table surface of cabinet (32), inlet end links to each other with the air inlet pipeline system by connecting pipe (15), test lead is positioned at cabinet (32) and links to each other with tester (31), also link to each other simultaneously with the pipe system of finding time, air reservoir (16) links to each other with the air inlet pipeline system, the fine setting blow-off system links to each other with the pipe system of finding time with the air inlet pipeline system respectively, the air inlet pipeline system, the pipe system of finding time, the fine setting blow-off system, various valve knobs in the tester (31), Displaying Meter all is positioned at the outside surface of cabinet (32), remainder and air reservoir (16) are installed in the cabinet (32) together, wherein gas permeable vents (1) is more than two, and each gas permeable vents (1) links to each other with the tester (31) of coupling; On air reservoir (16) air inlet pipeline gas admittance valve (17) is installed, a tensimeter (18) is installed on the outlet pipe; The air inlet pipeline system is made up of inflation main valve (19), branch valve (21) and pipeline (20,22), inflation main valve (19) has two, be installed on the inflation house steward (20), link to each other with the fine setting blow-off system by a three-way pipe therebetween, inflation divides valve (21) to be positioned at inflation main valve (19) afterwards, its number and gas permeable vents (1) number coupling is installed in parallel in the inflation of vertical parallel arrangement and is in charge of on (22); The pipe system of finding time is by vacuum meter (23), stop valve (24), the vacuum valve (25) and the pipeline (26 of finding time, 27) form, find time house steward (26) and find time to be in charge of (27) of pipeline branch finds time, vacuum meter (23), stop valve (24) is installed in series in the house steward that finds time (26), the house steward that finds time (26) who is positioned at stop valve (24) one sides connects pumped vacuum systems, vacuum valve (25) be installed in be positioned at that vacuum meter (23) one sides find time that house steward goes up that vertical parallel arranges find time to be in charge of on (27), its number and gas permeable vents (1) number coupling, and a three-way pipe is arranged on vacuum meter (23) and the house steward that finds time (26) who finds time to be in charge of between (27) and finely tune blow-off system and link to each other; The fine setting blow-off system is made up of fine setting air release (28), shutdown valve (29) and pipeline (30), fine setting air release (28), shutdown valve (29) are installed in series in pipeline (30), link to each other with the air inlet pipeline system by a three-way pipe therebetween, the pipeline that is positioned at fine setting air release (28) one sides connects atmosphere, the pipeline that is positioned at shutdown valve (29) one sides connects the pipe system of finding time, and it is characterized in that test lead (7) that the tester (31) of each gas permeable vents (1) and coupling links to each other adopts band metal edge of a knife flange-interface to be connected or is weldingly connected with it; Tester (31) is the capacitor thin film vacuum meter; Vacuum valve in the pipe system of finding time (25) is a ultrahigh vacuum valve.
2, gas permeation rate analyzer according to claim 1 is characterized in that ultrahigh vacuum valve (25) is ultrahigh vacuum flapper valve or ultrahigh vacuum push-pull valve, its leak rate≤10
-7Pa.L/S, gas permeable vents (1) be three or three multiple several.
3, gas permeation rate analyzer according to claim 1 is characterized in that ultrahigh vacuum valve (25) is ultrahigh vacuum flapper valve or ultrahigh vacuum push-pull valve, its leak rate≤10
-8Pa.L/S, gas permeable vents (1) be three or three multiple several.
4, according to claim 1 or 2 or 3 described gas permeation rate analyzers, the upper cover plate (2) that it is characterized in that gas permeable vents (1) is connected by fastening external thread sleeve (13) with base (5), fastening external thread sleeve (13) is the open convex housing in a bottom, center of top has through hole, have screw thread on the lower inner wall, when the draft tube (4) of gas permeable vents upper cover plate (2) center of top is passed fastening external thread sleeve (13) center of top through hole, this screw thread just can make it to be fastenedly connected and be one with the threaded engagement on gas permeable vents upper cover plate (2) and base (3) outer wall.
5, gas permeation rate analyzer according to claim 4 is characterized in that the outer wall middle part of fastening external thread sleeve (13) is evenly equipped with fastening bayonet socket (14) all around.
6, according to claim 1 or 2 or 3 described gas permeation rate analyzers, it is characterized in that gas permeable vents upper cover plate (2) and base (5) place on the outside anchor ring that clamping treats test sample film vacuum seal rubber band (8) groove a wedge angle or the relative annular protrusion (10) of fillet are respectively arranged, be provided with O-ring seal (11) between the annular protrusion that wedge angle or fillet are relative (10), or on the upper cover plate an annular wedge angle or fillet projection (10), on the base (5) two annular wedge angles or fillet projection (10), after gas permeable vents (1) installs, the wedge angle of the annular protrusion (10) on the upper cover plate (2) or fillet just are arranged in the groove that base (5) is gone up second ring wedge angle or fillet projection (10) formation, and are being provided with O-ring seal (11) between annular wedge angle or the fillet projection (10) up and down.
7, gas permeation rate analyzer according to claim 4, it is characterized in that gas permeable vents upper cover plate (2) and base (5) place on the outside anchor ring that clamping treats test sample film vacuum seal rubber band (8) groove a wedge angle or the relative annular protrusion (10) of fillet are respectively arranged, be provided with O-ring seal (11) between the annular protrusion that wedge angle or fillet are relative (10), or on the upper cover plate an annular wedge angle or fillet projection (10), on the base (5) two annular wedge angles or fillet projection (10), after gas permeable vents (1) installs, the wedge angle of the annular protrusion (10) on the upper cover plate (2) or fillet just are arranged in the groove that base (5) is gone up second ring wedge angle or fillet projection (10) formation, and are being provided with O-ring seal (11) between annular wedge angle or the fillet projection (10) up and down.
8,, it is characterized in that gas permeable vents upper cover plate (2) places clamping and treat that (3) cross section is circular arc along the limit in test sample film vacuum seal rubber band (8) groove inboard according to claim 1 or 2 or 3 described gas permeation rate analyzers.
9, gas permeation rate analyzer according to claim 6 is characterized in that gas permeable vents upper cover plate (2) places clamping and treat that (3) cross section is circular arc along the limit in test sample film vacuum seal rubber band (8) groove inboard.
10, gas permeation rate analyzer according to claim 7 is characterized in that gas permeable vents upper cover plate (2) places clamping and treat that (3) cross section is circular arc along the limit in test sample film vacuum seal rubber band (8) groove inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061664 CN2750316Y (en) | 2004-10-15 | 2004-10-15 | Gas transmissibility analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061664 CN2750316Y (en) | 2004-10-15 | 2004-10-15 | Gas transmissibility analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2750316Y true CN2750316Y (en) | 2006-01-04 |
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ID=35823699
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420061664 Expired - Fee Related CN2750316Y (en) | 2004-10-15 | 2004-10-15 | Gas transmissibility analyzer |
Country Status (1)
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141504A (en) * | 2011-01-27 | 2011-08-03 | 中国商用飞机有限责任公司 | Testing device and method for testing gas penetration rate in thickness direction of overlay |
| CN102564915A (en) * | 2012-01-06 | 2012-07-11 | 北京科技大学 | Methane storage membrane methane permeability test device and test method |
| CN103471961A (en) * | 2013-09-26 | 2013-12-25 | 湖南航天机电设备与特种材料研究所 | Gas barrier property detection apparatus for aerostat ballonet body material |
| CN104034647A (en) * | 2014-06-25 | 2014-09-10 | 哈尔滨工业大学 | Gas permeability characteristic parameter test device and method for measuring gas permeability characteristic parameters of micro-nano porous material by utilizing same |
| CN104235365A (en) * | 2014-07-18 | 2014-12-24 | 安徽荃富信息科技有限公司 | High-vacuum high-temperature-resistant locking mechanism |
| CN104330345A (en) * | 2014-11-24 | 2015-02-04 | 云南云天化股份有限公司 | Method and device for detecting gas permeability of PVA membrane |
| CN105043959A (en) * | 2015-07-10 | 2015-11-11 | 山东省纺织科学研究院 | Chemical liquid permeability test apparatus |
| CN105547956A (en) * | 2015-12-10 | 2016-05-04 | 电子科技大学 | Device and method for measuring gas permeability of thin film by using vacuometer |
| CN109709022A (en) * | 2019-03-07 | 2019-05-03 | 铁正检测科技有限公司 | Leakage resistance detection device after a kind of metal bellows bending for building of legislate formula |
| WO2019100530A1 (en) * | 2017-11-22 | 2019-05-31 | 济南兰光机电技术有限公司 | Gas constant temperature device and detection system |
| CN112113893A (en) * | 2020-09-29 | 2020-12-22 | 济南兰光机电技术有限公司 | Multi-cavity testing structure, system and method for film penetration detection |
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- 2004-10-15 CN CN 200420061664 patent/CN2750316Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141504B (en) * | 2011-01-27 | 2013-06-12 | 中国商用飞机有限责任公司 | Testing device and method for testing gas penetration rate in thickness direction of overlay |
| CN102141504A (en) * | 2011-01-27 | 2011-08-03 | 中国商用飞机有限责任公司 | Testing device and method for testing gas penetration rate in thickness direction of overlay |
| CN102564915A (en) * | 2012-01-06 | 2012-07-11 | 北京科技大学 | Methane storage membrane methane permeability test device and test method |
| CN103471961B (en) * | 2013-09-26 | 2016-02-24 | 湖南航天机电设备与特种材料研究所 | A kind of aerostatics envelop materials detection apparatus for gas barrier performance |
| CN103471961A (en) * | 2013-09-26 | 2013-12-25 | 湖南航天机电设备与特种材料研究所 | Gas barrier property detection apparatus for aerostat ballonet body material |
| CN104034647A (en) * | 2014-06-25 | 2014-09-10 | 哈尔滨工业大学 | Gas permeability characteristic parameter test device and method for measuring gas permeability characteristic parameters of micro-nano porous material by utilizing same |
| CN104034647B (en) * | 2014-06-25 | 2016-03-02 | 哈尔滨工业大学 | A kind of gas permeation property parameter test device and use it to measure the method for micro-nano porous material gas permeation property parameter |
| CN104235365A (en) * | 2014-07-18 | 2014-12-24 | 安徽荃富信息科技有限公司 | High-vacuum high-temperature-resistant locking mechanism |
| CN104330345A (en) * | 2014-11-24 | 2015-02-04 | 云南云天化股份有限公司 | Method and device for detecting gas permeability of PVA membrane |
| CN105043959A (en) * | 2015-07-10 | 2015-11-11 | 山东省纺织科学研究院 | Chemical liquid permeability test apparatus |
| CN105043959B (en) * | 2015-07-10 | 2017-12-01 | 山东省纺织科学研究院 | A kind of chemical liquid permeance property test instrument |
| CN105547956A (en) * | 2015-12-10 | 2016-05-04 | 电子科技大学 | Device and method for measuring gas permeability of thin film by using vacuometer |
| CN105547956B (en) * | 2015-12-10 | 2019-05-24 | 电子科技大学 | A kind of device and method of vacuum meter measurement film gas permeability |
| WO2019100530A1 (en) * | 2017-11-22 | 2019-05-31 | 济南兰光机电技术有限公司 | Gas constant temperature device and detection system |
| CN109709022A (en) * | 2019-03-07 | 2019-05-03 | 铁正检测科技有限公司 | Leakage resistance detection device after a kind of metal bellows bending for building of legislate formula |
| CN112113893A (en) * | 2020-09-29 | 2020-12-22 | 济南兰光机电技术有限公司 | Multi-cavity testing structure, system and method for film penetration detection |
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