CN107677583A - A kind of piston water pressure Automatic-clamping rubber seal concrete impermeability test device - Google Patents
A kind of piston water pressure Automatic-clamping rubber seal concrete impermeability test device Download PDFInfo
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- CN107677583A CN107677583A CN201710870345.6A CN201710870345A CN107677583A CN 107677583 A CN107677583 A CN 107677583A CN 201710870345 A CN201710870345 A CN 201710870345A CN 107677583 A CN107677583 A CN 107677583A
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- die sleeve
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- gear ring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
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Abstract
The present invention relates to a kind of piston water pressure Automatic-clamping rubber seal concrete impermeability test device, belong to construction material detection technology field.The present invention includes die sleeve, rubber sleeve and hydraulic pressure cabin, and wherein hydraulic pressure cabin includes nacelle and piston.Round table-like concrete sample is placed on piston during experiment, then rubber sleeve is enclosed on test specimen, then die sleeve is enclosed on rubber sleeve.After water under high pressure is connected in hydraulic pressure cabin, piston jacks up test specimen and rubber sleeve, and die sleeve by the buckle teeth circle limitation in nacelle because that can not be moved up, therefore rubber sleeve is extruded by test specimen and die sleeve inwall, test specimen side thus sealed by rubber sleeve.Die sleeve is provided with stop screw, and the gap for limiting test specimen and die sleeve is the decrement for limiting rubber sleeve.Using this experimental rig, sealing rubber cover may be reused, easy to operate simple.Test specimen and die sleeve can be carried individually, and labor intensity is relatively low.By buckle teeth circle and piston, connect water under high pressure rear mold when hydraulic pressure cabin and be enclosed on automatic blocking clamping, convenient power-saving on stand.
Description
Technical field
The present invention relates to the concrete impervious experiment of architectural engineering, belong to construction material detection technology field.
Technical background
At present, test specimen used in concrete impermeability test is mostly prefabricated path 175mm, big footpath 185mm, high 150mm reality
Heart round estrade.Before experiment, first paraffin and rosin blend or the airtight and watertight padding such as butter and talc mixture are heated and softened,
Round estrade test specimen side uniformly is applied to, test specimen is then pressed into die sleeve with press.By dry solidification, test specimen is together with die sleeve quilt
Test-bed is brought up to, is fixed with mode connects for screw.To ensure to form reliable sealing between die sleeve and test-bed, every die sleeve must be used
6 attachment screws, there is 6 die sleeves on each stand, and trip bolt is all manual operations.Concrete sample is pressed into the entirety of die sleeve
Weight is close to 15 kilograms, and artificial carrying labor intensity is big, and operating efficiency is low.Other paraffin can be decomposited in heating process benzene,
The harmful substances such as sweet smell.After experiment, die sleeve cleaning is also time-consuming.This experimental rig has not adapted to the need of building trade development
Will.
The content of the invention
It is an object of the invention to provide a kind of piston water pressure Automatic-clamping rubber seal concrete impermeability test device.Should
Device replaces airtight and watertight padding using reusable rubber sleeve, utilizes buckle teeth locking and piston water pressure automatic clamping mechanism generation
For mode connects for screw.It is laborsaving time saving on the basis of guarantee test is reliable, working environment cleaning, do not pollute.
Experiment involved in the present invention still uses solid round estrade concrete sample.The present invention includes die sleeve, rubber sleeve and water
Ballasting.The die sleeve is a round table-like metal cylinder with test specimen with identical taper.The internal diameter in any section of die sleeve is more than
Test specimen corresponds to the external diameter in section, and die sleeve is enclosed on outside test specimen, and it is alignd respectively with the large and small end face of test specimen, puts with one heart,
Then there is uniform gap between die sleeve and test specimen.The big end outer rim of die sleeve is provided with outward buckle gear ring, the size and shape of each buckle teeth
It is identical, it is uniformly distributed circumferentially, buckle teeth width is slightly less than between cog well width.The rubber sleeve is that one kind has with die sleeve and test specimen
The round table-like rubber cylinder of identical taper.Rubber sleeve uniform wall thickness and the gap being more than between die sleeve and test specimen.The hydraulic pressure cabin bag
Include nacelle and piston.The nacelle includes cylindrical tube, the bilge and hatch flange.The bilge is provided with water inlet.The cabin
Mouth flange is located at cylindrical tube outer rim suitable for reading.The piston is located in nacelle, coordinates with the cylindrical tube body space of nacelle, uses
Sealing ring seals.The upper surface of piston is provided with end-face seal ring.The nacelle is placed in the mounting hole of test-bed, hatch
Flange is by experiment table bearing.Internal buckle gear ring is put above hatch flange, it is the couple of the outward buckle gear ring.Hatch flange and interior
Packing ring is provided between buckle teeth circle, its thickness is slightly larger than outward buckle gear ring thickness, and external diameter is equal to hatch flange outer diameter, and internal diameter is more than internal buckle
Gear ring tip diameter.The hatch flange, packing ring, internal buckle gear ring are fixed with one group of screw and experiment table top, in the screw
Include two articulation hole screws.During experiment, the big end of test specimen is lain in downwards on the end-face seal ring of the piston upper end, then will
The rubber sleeve is enclosed on test specimen, then the die sleeve is enclosed on rubber sleeve.Rotating die sleeve makes in the buckle teeth alignment of outward buckle gear ring
The inter-tooth slots of buckle teeth circle, somewhat firmly push, rotate die sleeve again when outward buckle gear ring is fallen on below internal buckle gear ring, make inside and outside
The buckle teeth alignment of buckle teeth circle.Can water test after the above-mentioned preparation of all test specimens on test-bed.
Two rectangular metal sheets, sheet metal and die sleeve outer conical surface are arranged symmetrically at the die sleeve small end outside diameter both ends
It is tangent.There is size shape identical rectangular notch on two sheet metals, two notch opening directions are identical, the line of centres and die sleeve
Axis of rotation intersects vertically.During experiment, insert the crossbeam that cross section is rectangle in the notch, crossbeam axis with it is described
Two notch lines of centres overlap.The crossbeam is provided with screw, and center line of bolt hole intersects vertically with crossbeam axis.In work shape
Under state, the center line of bolt hole overlaps with die sleeve axis of rotation.Stop screw is provided with the screw.
Guide rod is provided with the nacelle, guide rod axis overlaps with nacelle axis of rotation.
The piston has pilot hole, is oriented to centerline hole and is overlapped with piston axis of rotation.Between pilot hole and the guide rod are
Gap coordinates.
The piston and the fit clearance of the nacelle are sealed with single Yx sealing ring.
Check valve is provided between the side face of piston ring.
The piston upper surface is provided with Sealing shield ring.
Any section internal diameter of rubber sleeve corresponds to cross-sectional outer diameter less than test specimen.
Brief description of the drawings
Fig. 1 is test specimen, die sleeve and hydraulic pressure cabin assembling schematic diagram
Fig. 2 is test specimen, die sleeve and hydraulic pressure cabin schematic appearance one
Fig. 3 is test specimen, die sleeve and hydraulic pressure cabin schematic appearance two
Fig. 4 is test-bed schematic diagram one
Fig. 5 is test-bed schematic diagram two
In figure：4. packing ring, 5. articulation hole screws, 6. internal buckle gear rings, 7. sealing rings, 8. pistons, 9. check valves, 10. die sleeves,
11. rubber sleeve, 12. crossbeams, 13. guide rods, 14. stop screws, 15. test specimens, 17. sheet metals, 18. end-face seal rings, 19. sealings
Back-up ring, 20. screws, 21. nacelles, 22. outward buckle gear rings, 23. experiment table tops.
Embodiment
Such as Fig. 1, the present invention includes die sleeve 10, rubber sleeve 11 and hydraulic pressure cabin 21.The die sleeve is one to be had with test specimen 15
The round table-like metal cylinder of identical taper.The internal diameter in any section of die sleeve is more than the external diameter that test specimen corresponds to section, and die sleeve is enclosed on
Outside test specimen, and it is alignd respectively with the large and small end face of test specimen, put with one heart, then have between die sleeve 10 and test specimen 15 uniform
Gap.Such as Fig. 3, the die sleeve 10 holds greatly outer rim to be provided with outward buckle gear ring 22, and the size and shape of each buckle teeth is identical, circumferentially uniformly
Distribution, buckle teeth width are slightly less than between cog well width.Such as Fig. 1, the rubber sleeve 11 is that a kind of and die sleeve and test specimen have identical cone
The round table-like rubber cylinder of degree.Rubber sleeve uniform wall thickness and the gap being more than between die sleeve and test specimen.The hydraulic pressure cabin includes nacelle
21 and piston 8.The nacelle 21 includes cylindrical tube, the bilge and hatch flange.The bilge is provided with water inlet.The hatch
Flange is located at cylindrical tube outer rim suitable for reading.The piston 8 is located in nacelle 21, matches somebody with somebody with the cylindrical tube body space of nacelle 21
Close, sealed with sealing ring 7.The upper surface of piston 8 is provided with end-face seal ring 18.Such as Fig. 4, the nacelle 21 is placed in testing stand
In the mounting hole of frame, hatch flange is supported by experiment table top 23.Internal buckle gear ring 6 is put above hatch flange, it is with the outer buckle teeth
The couple each other of circle 22.Packing ring 4 is provided between hatch flange and internal buckle gear ring 6, its thickness is slightly larger than the thickness of outward buckle gear ring 22, external diameter
Equal to hatch flange outer diameter, internal diameter is more than the tip diameter of internal buckle gear ring 6.It is the hatch flange, packing ring 4, interior such as Fig. 4, Fig. 5
Buckle teeth circle 6 is fixed with one group of screw 20 and experiment table top 23, and two articulation hole screws 5 are included in the screw.During experiment, it will try
The end greatly of part 15 is lain in downwards on the end-face seal ring 18 of the upper end of piston 8, then the rubber sleeve 11 is enclosed on test specimen, then
The die sleeve 10 is enclosed on rubber sleeve.Rotating die sleeve makes the buckle teeth of outward buckle gear ring 22 be directed at the inter-tooth slots of internal buckle gear ring 6, somewhat
Firmly push, rotate die sleeve 10 again when outward buckle gear ring 22 falls on internal buckle gear ring (6) below, make buckleing for inside and outside buckle teeth circle 22
Tooth aligns.Can water test after the above-mentioned preparation of all test specimens on test-bed.
As shown in Figure 1, Figure 2, two rectangular metal sheets 17, sheet metal are arranged symmetrically at the small end outside diameter both ends of die sleeve 10
It is tangent with the outer conical surface of die sleeve 10.There are size shape identical rectangular notch, two notch opening direction phases on two sheet metals
Together, the line of centres intersects vertically with the axis of rotation of die sleeve 10.During experiment, a cross section is inserted in the notch as rectangle
Crossbeam 12, the axis of crossbeam 12 overlap with described two notch lines of centres.The crossbeam 12 is provided with screw, center line of bolt hole with
The axis of crossbeam 12 intersects vertically.In the operating condition, the center line of bolt hole overlaps with die sleeve axis of rotation.Set in the screw
Limited location screw 14.
Guide rod 13 is provided with the nacelle 21, guide rod axis overlaps with the axis of rotation of nacelle 21.
The piston 8 has pilot hole, is oriented to centerline hole and is overlapped with the axis of rotation of piston 8.Pilot hole and the guide rod 13
Coordinate for gap.
The piston 8 and the fit clearance of the nacelle 21 are sealed with single Yx sealing ring 7.
Check valve 9 is provided between the both ends of the surface of piston 8.
The upper surface of piston 8 is provided with Sealing shield ring 19.
Any section internal diameter of rubber sleeve 11 is less than 15 corresponding cross-sectional outer diameter of test specimen.
Water test starts, and water under high pressure enters hydraulic pressure cabin from hydraulic pressure bilge portion water inlet, promotes piston 8 to move up, and passes through
End-face seal ring 18 promotes test specimen 15 to move up, and stops movement up to test specimen withstands stop screw 14, then the cavity of resorption water of piston 8
Pressure rises because outward buckle gear ring 22 can not be moved up by internal buckle gear ring 6 is spacing together with die sleeve 10, therefore rubber sleeve 11 is by test specimen
15 and die sleeve 10 extrude, by the side of test specimen 15 seal.It has been observed that end-face seal ring 18 contacts the bottom surface of test specimen 15, by the He of piston 8
Test specimen is extruded, and annular seal space is formed between the bottom surface of test specimen 15 and piston 8, and the rising of the cavity of resorption hydraulic pressure of piston 8 opens check valve 9, high
Pressure water enters the annular seal space through check valve, test specimen bottom surface is born hydraulic pressure.The cavity of resorption release of off-test piston 8, piston 8 move down multiple
Position.
Claims (8)
- A kind of 1. piston water pressure Automatic-clamping rubber seal concrete impermeability test device, it is characterised in that：Including die sleeve (10), rubber sleeve (11) and hydraulic pressure cabin (21)；The die sleeve (10) is one has the round table-like of identical taper with test specimen (15) Metal cylinder；The internal diameter in die sleeve (10) any section is more than the external diameter in the corresponding section of test specimen (15), and die sleeve (10) is enclosed on into test specimen (15) outside, and it is alignd with test specimen (15) end face, put with one heart, then between having uniformly between die sleeve (10) and test specimen (15) Gap；The die sleeve (10) end outer rim greatly is provided with outward buckle gear ring (22), and the size and shape of each buckle teeth is identical, circumferentially uniformly divides Cloth, buckle teeth width are slightly less than between cog well width；The rubber sleeve (11) be it is a kind of with die sleeve (10) and test specimen (15) with identical The round table-like rubber cylinder of taper；Rubber sleeve (11) uniform wall thickness and the installation gap being more than between die sleeve (10) and test specimen (15)； The hydraulic pressure cabin includes nacelle (21) and piston (8)；The nacelle (21) includes cylindrical tube, the bilge and hatch flange；Institute State the bilge and be provided with water inlet；The hatch flange is located at cylindrical tube outer rim suitable for reading；The piston (8) and the circle of nacelle (21) Column-shaped barrel gap coordinates, and is sealed with sealing ring (7)；The upper surface of piston (8) is provided with end-face seal ring (18)；The nacelle (21) it is placed in the mounting hole of test-bed, hatch flange is supported by experiment table top (23)；Internal buckle is placed above in hatch flange Gear ring (6), its couple each other with the outward buckle gear ring (22)；Packing ring (4) is provided between hatch flange and internal buckle gear ring (6), its Thickness is slightly larger than outward buckle gear ring (22) thickness, and external diameter is equal to hatch flange outer diameter, and it is straight that internal diameter is more than internal buckle gear ring (6) outside circle Footpath；The hatch flange, packing ring (4), internal buckle gear ring (6) are fixed with one group of screw (20) and experiment table top (23), the screw (20) two articulation hole screws (5) are included in；During experiment, test specimen (15) end greatly is lain in into downwards the end-face seal ring (18) On, then the rubber sleeve (11) is enclosed on test specimen (15), then the die sleeve (10) is enclosed on rubber sleeve (11)；Rotate die sleeve (10) buckle teeth of outward buckle gear ring (22) is directed at the inter-tooth slots of internal buckle gear ring (6), somewhat firmly die sleeve (10) is pushed, when outer buckle teeth Circle (22) rotates die sleeve (10) again when falling on internal buckle gear ring (6) below, makes the buckle teeth of internal buckle gear ring (6) and outward buckle gear ring (22) Alignment；Can water test after the above-mentioned preparation of all test specimens on test-bed.
- 2. a kind of piston water pressure Automatic-clamping rubber seal concrete impermeability test device according to claim 1, it is special Sign is：Die sleeve (10) small end outside diameter both ends are arranged symmetrically two size shape identical rectangular metal sheets (17), metal Piece and die sleeve (10) outer conical surface are tangent；Have rectangular notch on two sheet metals, two notch opening directions are identical, the line of centres with Die sleeve (10) axis of rotation intersects vertically；During experiment, the crossbeam (12) that a cross section is rectangle is inserted in the notch, its Axis overlaps with described two notch lines of centres；The crossbeam (12) is provided with stop screw (14), its center line and crossbeam (12) axis intersects vertically, and in the operating condition, stop screw (14) center line overlaps with die sleeve (10) axis of rotation.
- 3. a kind of piston water pressure Automatic-clamping rubber seal concrete impermeability test device according to claim 1, it is special Sign is：Guide rod (13) is provided with nacelle (21), guide rod axis is overlapped with nacelle (21) axis of rotation, is fixedly connected with the bilge.
- 4. a kind of piston water pressure Automatic-clamping rubber seal concrete impermeability test device according to claim 1, it is special Sign is：Piston (8) has pilot hole, is oriented to axially bored line and is overlapped with piston (8) axis of rotation；Pilot hole is with the guide rod (13) Gap coordinates.
- 5. a kind of piston water pressure Automatic-clamping rubber seal concrete impermeability test device according to claim 1, it is special Sign is：Piston (8) and the fit clearance of the nacelle (21) are sealed with single Yx sealing ring (7).
- 6. a kind of piston water pressure Automatic-clamping rubber seal concrete impermeability test device according to claim 1, it is special Sign is：Check valve (9) is provided between piston (8) both ends of the surface.
- 7. a kind of piston water pressure Automatic-clamping rubber seal concrete impermeability test device according to claim 1, it is special Sign is：Piston (8) upper surface is provided with Sealing shield ring (19).
- 8. a kind of piston water pressure Automatic-clamping rubber seal concrete impermeability test device according to claim 1, it is special Sign is：Any section internal diameter of rubber sleeve (11) is less than the corresponding cross-sectional outer diameter of test specimen (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710870345.6A CN107677583B (en) | 2017-11-02 | 2017-11-02 | Piston type hydraulic pressure automatic clamping rubber sealing concrete impermeability test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710870345.6A CN107677583B (en) | 2017-11-02 | 2017-11-02 | Piston type hydraulic pressure automatic clamping rubber sealing concrete impermeability test device |
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| Publication Number | Publication Date |
|---|---|
| CN107677583A true CN107677583A (en) | 2018-02-09 |
| CN107677583B CN107677583B (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710870345.6A Active CN107677583B (en) | 2017-11-02 | 2017-11-02 | Piston type hydraulic pressure automatic clamping rubber sealing concrete impermeability test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030174A (en) * | 2018-07-25 | 2018-12-18 | 无锡海核装备科技有限公司 | A kind of pressure testing tooling of multi-orifice devices |
| CN109283113A (en) * | 2018-10-31 | 2019-01-29 | 中国矿业大学 | A kind of the concrete impermeability test device and test method of elimination of level circumferential pressure |
| CN115639127A (en) * | 2022-09-09 | 2023-01-24 | 寰泰储能科技股份有限公司 | Method and device for measuring porosity of porous material under pressure |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1229326A2 (en) * | 2001-02-06 | 2002-08-07 | Gesellschaft neue Technologie-Verwertung, GntV GmbH | Method of measuring the fraction of air pores in fresh concrete |
| CN1916624A (en) * | 2006-08-18 | 2007-02-21 | 舟山市博远科技开发有限公司 | Method for sealing impervious test piece in concrete |
| CN101071054A (en) * | 2006-12-05 | 2007-11-14 | 宁波长城精工实业有限公司 | Fastenable band tape |
| JP2008046086A (en) * | 2006-08-21 | 2008-02-28 | Kagawa Univ | Water penetration test machine and water penetration test method |
| CN202083374U (en) * | 2011-04-27 | 2011-12-21 | 宝山钢铁股份有限公司 | Measuring device for measuring roll marks and concave-convex marks on strip steel templates |
| CN204630895U (en) * | 2015-06-01 | 2015-09-09 | 山东省建筑科学研究院 | Carry the concrete impervious instrument of removable mold mechanism |
| CN104977235A (en) * | 2015-07-14 | 2015-10-14 | 中震(北京)工程检测有限公司 | Method for concrete impermeability test adopting rubber sleeve seal |
| CN105738267A (en) * | 2016-03-04 | 2016-07-06 | 南京德阳科技有限公司 | Test block side surface sealing device for concrete anti-permeation instrument |
| CN206258352U (en) * | 2016-11-21 | 2017-06-16 | 深圳市振惠建混凝土有限公司 | Concrete impervious instrument and its die trial |
| CN107101929A (en) * | 2017-05-31 | 2017-08-29 | 南京华研智能科技有限公司 | Concrete impermeability experimental rig |
-
2017
- 2017-11-02 CN CN201710870345.6A patent/CN107677583B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1229326A2 (en) * | 2001-02-06 | 2002-08-07 | Gesellschaft neue Technologie-Verwertung, GntV GmbH | Method of measuring the fraction of air pores in fresh concrete |
| CN1916624A (en) * | 2006-08-18 | 2007-02-21 | 舟山市博远科技开发有限公司 | Method for sealing impervious test piece in concrete |
| JP2008046086A (en) * | 2006-08-21 | 2008-02-28 | Kagawa Univ | Water penetration test machine and water penetration test method |
| CN101071054A (en) * | 2006-12-05 | 2007-11-14 | 宁波长城精工实业有限公司 | Fastenable band tape |
| CN202083374U (en) * | 2011-04-27 | 2011-12-21 | 宝山钢铁股份有限公司 | Measuring device for measuring roll marks and concave-convex marks on strip steel templates |
| CN204630895U (en) * | 2015-06-01 | 2015-09-09 | 山东省建筑科学研究院 | Carry the concrete impervious instrument of removable mold mechanism |
| CN104977235A (en) * | 2015-07-14 | 2015-10-14 | 中震(北京)工程检测有限公司 | Method for concrete impermeability test adopting rubber sleeve seal |
| CN105738267A (en) * | 2016-03-04 | 2016-07-06 | 南京德阳科技有限公司 | Test block side surface sealing device for concrete anti-permeation instrument |
| CN206258352U (en) * | 2016-11-21 | 2017-06-16 | 深圳市振惠建混凝土有限公司 | Concrete impervious instrument and its die trial |
| CN107101929A (en) * | 2017-05-31 | 2017-08-29 | 南京华研智能科技有限公司 | Concrete impermeability experimental rig |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030174A (en) * | 2018-07-25 | 2018-12-18 | 无锡海核装备科技有限公司 | A kind of pressure testing tooling of multi-orifice devices |
| CN109283113A (en) * | 2018-10-31 | 2019-01-29 | 中国矿业大学 | A kind of the concrete impermeability test device and test method of elimination of level circumferential pressure |
| CN109283113B (en) * | 2018-10-31 | 2023-12-29 | 中国矿业大学 | Concrete impermeability test device and test method for eliminating horizontal hoop pressure |
| CN115639127A (en) * | 2022-09-09 | 2023-01-24 | 寰泰储能科技股份有限公司 | Method and device for measuring porosity of porous material under pressure |
| CN115639127B (en) * | 2022-09-09 | 2023-05-16 | 寰泰储能科技股份有限公司 | Method and device for measuring porosity of porous material under pressure |
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| Publication number | Publication date |
|---|---|
| CN107677583B (en) | 2020-06-19 |
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