WO2014083742A1 - Outil et dispositif de recherche de fuites - Google Patents

Outil et dispositif de recherche de fuites Download PDF

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Publication number
WO2014083742A1
WO2014083742A1 PCT/JP2013/005986 JP2013005986W WO2014083742A1 WO 2014083742 A1 WO2014083742 A1 WO 2014083742A1 JP 2013005986 W JP2013005986 W JP 2013005986W WO 2014083742 A1 WO2014083742 A1 WO 2014083742A1
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WO
WIPO (PCT)
Prior art keywords
arc extinguishing
extinguishing chamber
leak
leak inspection
lid
Prior art date
Application number
PCT/JP2013/005986
Other languages
English (en)
Japanese (ja)
Inventor
公夫 中川
孝二 田島
祐一 山本
Original Assignee
富士電機機器制御株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 富士電機機器制御株式会社 filed Critical 富士電機機器制御株式会社
Priority to KR1020147033738A priority Critical patent/KR101786717B1/ko
Publication of WO2014083742A1 publication Critical patent/WO2014083742A1/fr

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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
    • G01M3/226—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 containers, e.g. radiators

Definitions

  • the present invention relates to a leak inspection jig and a leak inspection apparatus, and more particularly to a leak inspection jig used at the time of leak inspection of an arc extinguishing chamber constituting a part of an electromagnetic contactor and a leak inspection apparatus including the inspection jig.
  • Some electromagnetic contactors according to the prior art include a gas-sealed structure (so-called gas-filled capsule) in which a gas such as hydrogen is sealed.
  • An arc extinguishing chamber having a bowl-like structure is one of the components constituting the gas-sealed structure.
  • an inspection method called “hood method” may be used.
  • this inspection method will be briefly described.
  • FIG. 11 is a conceptual diagram illustrating a leak inspection method (hood method) according to the prior art.
  • hood method a leak inspection method
  • an open end surface of the arc extinguishing chamber 10 for example, a flange surface 12a of a flange welded plate provided in the arc extinguishing chamber 10
  • a leak detector leak detector
  • the inside of the arc-extinguishing chamber 10 is evacuated and depressurized by a vacuum pump (not shown) provided in 120.
  • the sealing packing 50 is brought into close contact with the flange surface 12a of the arc extinguishing chamber 10 (hereinafter, the portion where the flange surface 12a of the arc extinguishing chamber 10 and the sealing packing 50 are in close contact is also referred to as “seal portion”).
  • the arc extinguishing chamber 10 is covered with a hood (for example, a bag) 70 with the sealing packing 50 in close contact with the flange surface 12 a, and leak inspection gas (for example, helium gas) is leaked into the hood 70.
  • the gas is introduced from the inspection gas cylinder 113 through the connecting pipe 111. Note that when the gas for leak inspection is introduced into the hood 70, the inside of the hood 70 is at atmospheric pressure.
  • the leak inspection gas flows from the arc extinguishing chamber 10 outside the atmospheric pressure (inside the hood 70) into the arc-extinguishing chamber 10 that has been decompressed through the leak location.
  • the leak detector 120 detects the leak inspection gas flowing into the arc extinguishing chamber 10 to determine whether or not there is a leak location in the arc extinguishing chamber 10.
  • the inside of the arc-extinguishing chamber 10 is evacuated by the vacuum pump provided in the leak detector 120, so that it is difficult to sufficiently increase the degree of vacuum inside the arc-extinguishing chamber 10, and the degree of adhesion of the seal portion is high. May be low.
  • the leak rate with a leak rate of about 10 ⁇ 8 Pa ⁇ m 3 / s is the limit of measurement, and the leak rate is very small (specifically, the leak rate is 10 ⁇ 8 Pa ⁇ m 3 / s or less), it may be difficult to measure the amount of leakage.
  • the present invention is a jig used in a leak inspection of an arc extinguishing chamber that constitutes a part of a gas-sealed structure of an electromagnetic contactor, and has a leak rate that is small compared to the prior art. It is an object of the present invention to provide a leak inspection jig that can measure the amount of leak with high accuracy and a leak inspection apparatus including the inspection jig.
  • a leak inspection jig used in a vacuum, and includes a holding unit that holds a bottomed cylindrical arc extinguishing chamber with one end opened in an electromagnetic contactor.
  • An openable / closable lid that can be disposed opposite to an open end surface of the arc-extinguishing chamber in a state where the arc-extinguishing chamber is held by the holding unit; and the arc-extinguishing chamber Is held by the holding portion and the lid portion is closed, and the sealing packing disposed in contact with the open end surface of the arc extinguishing chamber and the lid portion, and presses the sealing packing And a lid fixing means for fixing the lid portion.
  • the sealing packing when the lid portion is fixed by the lid fixing means, the sealing packing can be pressed by the lid portion. For this reason, by installing the arc extinguishing chamber to be inspected on the leak inspection jig and fixing it with the lid, the degree of adhesion between the open end surface of the arc extinguishing chamber and the sealing packing and the sealing packing and the lid The degree of adhesion with can be increased. Therefore, the leak inspection gas introduced into the arc extinguishing chamber can be reduced from leaking between the open end surface and the sealing packing or between the sealing packing and the lid.
  • the leak amount from the arc extinguishing chamber is very small, the leak amount can be measured with high accuracy.
  • the lid fixing unit may fix the lid while pressing the sealing packing using a screw.
  • the lid is fixed while pressing the sealing packing with a screw, so that the sealing packing can be easily pressed by tightening the screw, and the leak inspection jig can be attached. It can be downsized.
  • a vacuum chamber the above-described leak inspection jig disposed in the vacuum chamber, and the leak inspection gas existing in the vacuum chamber in communication with the vacuum chamber.
  • a leak inspection apparatus comprising: a leak detector for detection.
  • the leak inspection gas introduced into the arc extinguishing chamber is located at a location other than the arc extinguishing chamber (specifically, between the open end surface and the sealing packing or the sealing packing) Leakage from the lid portion can be reduced. For this reason, even if the leak amount from the arc extinguishing chamber is very small, the leak amount can be measured with high accuracy.
  • the sealing packing when the lid portion is fixed by the lid fixing means, the sealing packing can be pressed by the lid portion. For this reason, by installing the arc extinguishing chamber to be inspected in the work guide and fixing it with the lid, the degree of adhesion between the open end surface of the arc extinguishing chamber and the sealing packing and the sealing packing and the lid The degree of adhesion can be increased. For this reason, the leak inspection gas introduced into the arc extinguishing chamber is located at a place other than the arc extinguishing chamber (specifically, between the open end surface and the sealing packing or between the sealing packing and the lid). Leakage can be reduced.
  • the leak inspection of the arc extinguishing chamber is performed in a vacuum, even if the leak amount from the arc extinguishing chamber is very small, the leak amount is reduced. It can be measured with high accuracy.
  • FIG. 2 is a cross-sectional view taken along line AA ′ of FIG. It is a disassembled perspective view which shows an arc-extinguishing chamber typically. It is a figure which shows the structure of the leak test jig
  • 2A and 2B are diagrams schematically showing a structure of a work guide portion, where FIG. 1A is a plan view and FIG.
  • FIG. 1B is a cross-sectional view taken along the line BB ′ in FIG. 2A and 2B are diagrams schematically showing a structure of a lid, where FIG. 1A is a plan view and FIG. 2B is a cross-sectional view taken along the line CC ′ of FIG. It is a perspective view which shows the structure of the packing for sealing typically.
  • FIG. 1 is a perspective view showing an example of a gas-sealed structure (so-called gas-filled capsule) of an electromagnetic contactor.
  • FIG. 2 is a cross-sectional view taken along line AA ′ of FIG.
  • FIG. 3 is an exploded perspective view schematically showing the arc extinguishing chamber.
  • the gas sealed structure (so-called gas-filled capsule) 1 includes an arc extinguishing chamber 10.
  • the arc extinguishing chamber 10 includes a metal rectangular tube 11, a bowl 13 disposed at the upper end of the metal rectangular tube 11, and a pair of fixed contacts 16. As shown in FIG. 3, the metal rectangular tube 11 constituting the arc extinguishing chamber 10 is provided with a flange portion 12 that protrudes outward from the lower end of the metal rectangular tube 11.
  • the flange surface 12a of the flange portion 12 is a portion in contact with a sealing packing 50 described later, and is a flat surface.
  • the rod-shaped body 13 constituting the arc extinguishing chamber 10 is formed by integrally forming a rectangular tube portion 14 formed of ceramics or a synthetic resin material and a top plate portion 15 that closes the upper end thereof.
  • the arc extinguishing chamber 10 is formed by forming a metal foil by performing metallization on the open end surface 14a side of the bowl-shaped body 13, and joining the metal rectangular tube body 11 to the metal foil.
  • the top plate portion 15 is formed with a pair of through holes 15a through which a pair of fixed contacts 16 are inserted at a central portion at a predetermined interval. A metallization process is performed around the through hole 15a. In FIG. 3, the description of the fixed contact 16 inserted into the through hole 15a is omitted, but the fixed contact 16 is welded to the top plate 15 so as to close the through hole 15a. Thus, the through hole 15a is sealed.
  • the top plate 15 is formed with a through hole 15b through which the gas introduction pipe 112 is inserted at the center.
  • the gas introduction pipe 112 inserted through the through hole 15b is not shown, but the gas introduction pipe 112 is welded to the top plate 15 so as to close the through hole 15b.
  • the through hole 15b is sealed.
  • the gas sealed structure 1 described above is a gas sealed structure according to the prior art. Therefore, the detailed description of the internal structure is omitted here.
  • 2 is a base plate
  • 3 is a cap
  • 4 is a fixed contact
  • 5 is a movable terminal
  • 5a is a movable contact
  • 6 is a movable shaft
  • 7 is a contact spring
  • 8 is a movable iron core
  • 9 is a movable core.
  • FIGS. 4A and 4B are diagrams schematically showing the structure of the leak inspection jig according to the embodiment, wherein FIG. 4A is a plan view, FIG. 4B is a side view, and FIG. 4C is a side view.
  • FIG. 5 is a side view showing a state in which the lid portion of the leak inspection jig according to the embodiment is opened.
  • the arc extinguishing chamber fixed to the leak inspection jig is indicated by a broken line.
  • 6A and 6B are diagrams schematically showing the structure of the work guide portion, where FIG.
  • FIG. 6A is a plan view
  • FIG. 6B is a cross-sectional view taken along the line BB ′ in FIG. 7A and 7B are diagrams schematically showing the structure of the lid
  • FIG. 7A is a plan view
  • FIG. 7B is a cross-sectional view taken along the line CC ′ of FIG.
  • FIG. 8 is a perspective view schematically showing the structure of the sealing packing.
  • the leak inspection jig 100 includes a work guide portion 20, a lid portion 30, and a sealing packing 50.
  • the work guide part 20 is a member for holding the arc-extinguishing chamber 10 as shown in FIG.
  • a penetrating portion 21 is provided at the center of the work guide portion 20.
  • the shape of the opening 21 a of the penetrating part 21 is substantially the same as the shape of the top plate 15 of the arc extinguishing chamber 10.
  • the widths A1 and A2 of the opening 21a of the penetrating portion 21 are substantially the same as the widths a1 and a2 of the top plate 15 of the arc extinguishing chamber 10 (see FIG. 3).
  • a groove portion (holding portion) 22 is formed around the opening portion 21a of the penetrating portion 21 so as to surround the opening portion 21a.
  • the shape of the opening 22 a of the groove portion 22 is substantially the same as the shape of the flange portion 12 provided in the arc extinguishing chamber 10.
  • the widths B1 and B2 of the opening 22a of the groove 22 are substantially the same as the widths b1 and b2 of the flange 12 (see FIG. 3).
  • the depth B3 of the groove portion 22 is deeper than the thickness b3 of the flange portion 12 (see FIG. 3).
  • the bottom surface 22b of the groove 22 is a flat surface.
  • a pair of protrusions 24 are provided at corners on the surface 23 side of the work guide portion 20.
  • the protrusions 24 are each provided with a through hole 24a along the width direction (the horizontal direction in the drawing).
  • the surface 23 of the work guide portion 20 is provided with a screw hole (female screw) 25 on the side facing the pair of projecting portions 24.
  • the lid 30 is an openable / closable lid that can be disposed to face the surface 23 of the work guide 20.
  • the lid portion 30 is for pressing a sealing packing 50 described later toward the flange surface 12 side of the arc extinguishing chamber 10 in a state where the arc extinguishing chamber 10 is held by the work guide portion 20.
  • cover 30 is a flat cover as shown in FIG. 7, and the inner surface 32 of the cover part 30 is a flat surface.
  • the widths D1 and D2 of the lid part 30 are substantially the same lengths as the widths C1 and C2 of the work guide part 20, respectively.
  • the lid portion 30 is provided with a pair of cutout portions 33.
  • the shape of the notch 33 is substantially the same as that of the protrusion 24 provided in the work guide 20 in a plan view.
  • a protrusion 31 is provided between the pair of notches 33. For this reason, the protrusion part 31 can be fitted together between a pair of protrusion part 24 with which the work guide part 20 is equipped.
  • the protruding portion 31 is provided with a through hole 31a along the width direction (the left-right direction in the drawing).
  • the hinge portion 40 is configured (see FIGS. 4 and 5).
  • the work guide portion 20 and the lid portion 30 are connected by the hinge portion 40 so as to be freely opened and closed.
  • the lid portion 30 is provided with a screw through hole 34 on the side facing the hinge portion 40 (projecting portion 31).
  • the sealing packing 50 is for preventing leakage inspection gas introduced into the arc extinguishing chamber 10 from leaking to the outside of the arc extinguishing chamber 10, and the flange surface 12 a of the flange portion 12 and the lid portion 30. It is arranged between the inner side surface 32. In other words, the sealing packing 50 holds the flange portion 12 of the arc extinguishing chamber 10 with the groove portion 22, and closes the lid portion 30, and the flange surface 12 a of the arc extinguishing chamber 10 and the inner side surface 32 of the lid portion 30. It is a packing arrange
  • the sealing packing 50 is a flat packing, and the widths e1 and e2 are smaller than the widths B1 and B2 of the groove 22 (opening 22a).
  • the thickness e3 of the sealing packing 50 is a thickness that is equal to or greater than the depth B3 of the groove portion 22 when the thickness e3 of the sealing packing 50 and the thickness b3 of the flange portion 12 are added together. Yes. If the combined thickness is less than the depth B3 of the groove 22, when the lid 30 is closed, for example, a gap is generated between the flange surface 12a and the sealing packing 50. There is a risk of leakage from the part.
  • the packing 50 for sealing the packing for sealing which concerns on a prior art can be used.
  • a screw 60 is used as a lid fixing means for fixing the lid 30.
  • the sealing packing 50 can be easily pressed, and between the flange surface 12a and the sealing packing 50 and between the sealing packing 50 and the inner side surface 32 of the lid portion 30. Can be tightly sealed.
  • FIG. 9 is a conceptual diagram for explaining how to use the leak inspection jig according to the embodiment, wherein (a) is a conceptual diagram showing a state of holding the arc extinguishing chamber, and (b) a state in which the lid is closed.
  • FIG. 9 the leak inspection jig 100 is shown using the cross-sectional views shown in FIGS. 6B and 7B, and the arc extinguishing chamber 10 is shown using a side view. Yes.
  • the lid 30 of the leak inspection jig 100 is opened.
  • the bowl-shaped body 13 of the arc extinguishing chamber 10 is inserted into the penetration portion 21 of the leak inspection jig 100.
  • the bowl-shaped body 13 is inserted from the surface 23 side of the leak inspection jig 100.
  • the flange portion 12 of the arc extinguishing chamber 10 is brought into contact with the bottom surface 22 b of the groove portion 22.
  • the state where the flange portion 12 is in contact with the bottom surface 22b corresponds to the state shown in FIG.
  • the lid 30 is closed via the sealing packing 50.
  • the lid 30 is tightened through the screw 60 through the screw through hole 34. In this way, by tightening the screw 60, the adhesion between the flange surface 12a of the arc extinguishing chamber 10 and the sealing packing 50 is increased, and the adhesion between the sealing packing 50 and the inner side surface 32 of the lid 30 is increased. .
  • the state in which the lid 30 is closed and the screw 60 is tightened corresponds to the state shown in FIG.
  • the openable / closable lid 30 that can be disposed to face the flange surface 12a of the arc extinguishing chamber 10, the flange 12 of the arc extinguishing chamber 10 is held in the groove 22, and the lid In a closed state, the sealing portion 50 disposed in contact with the flange surface 12 a of the arc extinguishing chamber 10 and the inner side surface 32 of the lid portion 30, and the lid portion 30 while pressing the sealing packing 50.
  • lid fixing means for fixing are provided for fixing.
  • the sealing packing 50 can be pressed by the lid portion 30 when the lid portion 30 is fixed by the lid fixing portion. Therefore, by installing the arc extinguishing chamber 10 to be inspected on the leak inspection jig 100 and fixing it with the lid portion 30, the degree of adhesion between the flange surface 12a of the arc extinguishing chamber 10 and the sealing packing 50 and the sealing The degree of adhesion between the packing 50 and the inner surface 32 of the lid 30 can be increased. Therefore, the leak inspection gas introduced into the arc-extinguishing chamber 10 is placed at a location other than the arc-extinguishing chamber 10 (specifically, between the flange surface 12a and the sealing packing 50 or between the sealing packing 50 and the lid portion).
  • the lid fixing portion fixes the lid portion 30 while pressing the sealing packing 50 using the screw 60. For this reason, it is possible to easily press the sealing packing 50 by tightening the screw 60, and the leak inspection jig 100 can be miniaturized.
  • the sealing packing 50 and the lid portion 30 are separated has been described (see FIGS. 5 and 9), but the present invention is not limited to this.
  • the sealing packing 50 may be fixed to the inner surface 32 of the lid 30 in advance. Even in this case, the same effects as those described above can be obtained.
  • the two steps of arranging the sealing packing 50 and closing the lid 30 can be completed in one step. Therefore, the work process can be simplified.
  • the above-mentioned embodiment demonstrated the case where the penetration part 21 and the groove part 22 were provided in the work guide part 20, and the flange part 12 of the arc-extinguishing chamber 10 was hold
  • the shape of the holding portion of the work guide portion 20 is not limited.
  • FIG. 10 is a conceptual diagram illustrating a leak inspection apparatus including the leak inspection jig according to the embodiment.
  • a leak inspection apparatus 200 according to an embodiment of the present invention includes a leak inspection jig 100, a vacuum chamber 110, and a leak detector 120.
  • the vacuum chamber 110 includes a vacuum pump (not shown) for evacuating the inside of the vacuum chamber 110.
  • the vacuum chamber 110 may be a vacuum chamber according to a conventional technique.
  • the vacuum chamber 110 includes a through hole 115 that penetrates the vacuum chamber wall, and a connecting pipe 111 is inserted through the through hole 115.
  • connection pipe 111 is a pipe for communicating the inside of the vacuum chamber 110 and the leak detector 120.
  • the connecting pipe 111 is brazed to the vacuum chamber 110 so as to close the through hole 115.
  • the through hole 115 is sealed, and the airtightness in the vacuum chamber 110 is maintained.
  • the vacuum chamber 110 includes a through hole 116 that penetrates the vacuum chamber wall, and a gas introduction pipe 112 is inserted through the through hole 116.
  • the gas introduction pipe 112 is a pipe for introducing a leak inspection gas into the arc extinguishing chamber 10.
  • One end of the gas introduction pipe 112 is connected to the arc extinguishing chamber 10, and the other end is connected to a leak inspection gas cylinder 113 that supplies a leak inspection gas.
  • the gas introduction pipe 112 is brazed to the vacuum chamber 110 so as to close the through hole 116.
  • the through hole 116 is sealed, and the airtightness in the vacuum chamber 110 is maintained.
  • the leak inspection jig 100 is fixed to the fixture 114 and disposed inside the vacuum chamber 110.
  • the fixture 114 is a rod-like member fixed to the inner wall of the vacuum chamber 110, for example.
  • the distal end portion of the fixture 114 and the surface 26 of the work guide portion 20 are joined together by welding, for example.
  • the leak detector 120 is connected to one end of the connecting pipe 111. That is, the leak detector 120 communicates with the inside of the vacuum chamber 110 through the connection pipe 111.
  • a chamber lid (not shown) of the vacuum chamber 110 is opened, and the arc extinguishing chamber 10 to be inspected is fixed to the leak inspection jig 100 arranged inside the vacuum chamber 110.
  • This fixing method is as described above.
  • the chamber lid is closed and the inside of the vacuum chamber 110 is evacuated by a vacuum pump.
  • the vacuum pump provided in the vacuum chamber 110 has a larger displacement than the vacuum pump provided in the leak detector 120. Therefore, the degree of vacuum inside the vacuum chamber 110 is higher than the degree of vacuum inside the arc extinguishing chamber 10 in the hood method described above. Also gets higher.
  • a leak inspection gas is introduced from the leak inspection gas cylinder 113 into the arc extinguishing chamber 10 through the gas introduction pipe 112. At this time, a leak inspection gas is introduced into the arc extinguishing chamber 10 so as to have a preset pressure. Finally, when the degree of vacuum inside the vacuum chamber 110 reaches a preset value, the leak detector 120 is operated to measure the leak amount of the leak inspection gas. At the time of leak inspection, the degree of vacuum outside the arc extinguishing chamber 10 (that is, the degree of vacuum inside the vacuum chamber 110) is higher than the degree of vacuum inside the arc extinguishing chamber 10.
  • the pressure outside the arc extinguishing chamber 10 pressure inside the vacuum chamber 110
  • the leak inspection gas flows from the inside of the arc extinguishing chamber 10 to the outside of the arc extinguishing chamber 10 (that is, the vacuum chamber 110 side) through the leak location. leak.
  • the concentration of the leak inspection gas inside the vacuum chamber 110 is measured, and the amount of leak from the arc extinguishing chamber 10 is measured.
  • the leak inspection gas introduced into the arc extinguishing chamber 10 is located at a place other than the arc extinguishing chamber 10 (specifically, between the flange surface 12 a and the sealing packing 50 or sealed). Leakage from the stopper packing 50 and the inner surface 32 of the lid 30 can be reduced. For this reason, even if the leak amount from the arc extinguishing chamber 10 is very small, the leak amount can be measured with high accuracy.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

L'invention concerne un outil de recherche de fuites et un dispositif de recherche de fuites comportant l'outil de recherche, l'outil étant utilisé dans des recherches de fuites sur des chambres d'extinction d'arc qui constituent partiellement une structure étanche au gaz d'un contacteur électromagnétique et étant capable de mesurer avec une grande précision, par comparaison aux technologies conventionnelles, des volumes de fuite même lorsque le débit de fuite est faible. Le présent outil (100) de recherche de fuites comporte: un guide (20) de travail qui est utilisé sous vide et qui est muni d'une rainure maintenant une bride d'une chambre d'extinction d'arc; un couvercle (30) qui est librement ouvert et fermé et qui peut être disposé en regard de la face de bride de la chambre d'extinction d'arc, ladite face de bride de la chambre d'extinction d'arc étant maintenue dans la rainure; un joint (50) d'étanchéité disposé de façon à prendre appui sur la face de bride de la chambre d'extinction d'arc et sur le couvercle (30), la bride de la chambre d'extinction d'arc étant maintenue dans la rainure et le couvercle (30) étant fermé; et un moyen d'ancrage du couvercle servant à ancrer le couvercle (30) tandis qu'il comprime le joint (50) d'étanchéité.
PCT/JP2013/005986 2012-11-30 2013-10-08 Outil et dispositif de recherche de fuites WO2014083742A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020147033738A KR101786717B1 (ko) 2012-11-30 2013-10-08 리크 검사 지그 및 리크 검사 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012262701A JP6040736B2 (ja) 2012-11-30 2012-11-30 リーク検査治具及びリーク検査装置
JP2012-262701 2012-11-30

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WO2014083742A1 true WO2014083742A1 (fr) 2014-06-05

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Publication number Priority date Publication date Assignee Title
KR102112636B1 (ko) * 2018-11-29 2020-05-19 재단법인 포항산업과학연구원 표준 시편, 리크 검사용 지그 및 리크 평가 방법
CN110736614B (zh) * 2019-10-25 2021-07-30 常熟市海鑫船舶机械制造有限公司 弃锚器测试装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185645U (ja) * 1983-05-30 1984-12-10 株式会社東芝 ガス絶縁電気機器のガスリ−ク検出装置
JPS60178332A (ja) * 1984-02-27 1985-09-12 Toshiba Corp 漏洩検出装置
JPH07270271A (ja) * 1994-03-28 1995-10-20 Nippon Sanso Kk メッキ皮膜のガスバリア性測定方法とその装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4347069B2 (ja) * 2004-01-07 2009-10-21 日本無線株式会社 気密性検査装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185645U (ja) * 1983-05-30 1984-12-10 株式会社東芝 ガス絶縁電気機器のガスリ−ク検出装置
JPS60178332A (ja) * 1984-02-27 1985-09-12 Toshiba Corp 漏洩検出装置
JPH07270271A (ja) * 1994-03-28 1995-10-20 Nippon Sanso Kk メッキ皮膜のガスバリア性測定方法とその装置

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KR101786717B1 (ko) 2017-10-18
JP2014109451A (ja) 2014-06-12
KR20150008436A (ko) 2015-01-22
JP6040736B2 (ja) 2016-12-07

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