JPS57101737A - Method for checking leakage - Google Patents

Method for checking leakage

Info

Publication number
JPS57101737A
JPS57101737A JP17811180A JP17811180A JPS57101737A JP S57101737 A JPS57101737 A JP S57101737A JP 17811180 A JP17811180 A JP 17811180A JP 17811180 A JP17811180 A JP 17811180A JP S57101737 A JPS57101737 A JP S57101737A
Authority
JP
Japan
Prior art keywords
checked
reaction layer
water
coloring
coloring reaction
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP17811180A
Other languages
Japanese (ja)
Inventor
Hidemasa Mori
Michiaki Hida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiho Kogyo Co Ltd
Original Assignee
Taiho Kogyo Co Ltd
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 Taiho Kogyo Co Ltd filed Critical Taiho Kogyo Co Ltd
Priority to JP17811180A priority Critical patent/JPS57101737A/en
Publication of JPS57101737A publication Critical patent/JPS57101737A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water

Abstract

PURPOSE:To prevent errorneous detection due to dew condensation by covering the top of a coloring reaction layer, which is applied on the surface to be checked by water proof, transparent film and detecting the leaking part. CONSTITUTION:The coloring reaction layer including a component, which is colored or discolored even by water, is applied on the surface to be checked. The top of said layer is covered by the water proof, transparent film. Water or steam is provided on the other side of the surface to be checked. The water or steam leaked from the leaking part of the surface to be checked is contacted with the coloring reaction layer. The leaking part is detected by coloring or discoloring the coloring reaction layer. The transparent film is the tape on one surface of which the coloring layer is formed. The side of the coloring reaction layer is applied on the surface to be checked as a checking surface, and the checking can be performed. The main material of the coloring reaction layer can be powder wherein component, which is colored or discolored by the water, is absorbed.
JP17811180A 1980-12-18 1980-12-18 Method for checking leakage Pending JPS57101737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17811180A JPS57101737A (en) 1980-12-18 1980-12-18 Method for checking leakage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17811180A JPS57101737A (en) 1980-12-18 1980-12-18 Method for checking leakage

Publications (1)

Publication Number Publication Date
JPS57101737A true JPS57101737A (en) 1982-06-24

Family

ID=16042840

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17811180A Pending JPS57101737A (en) 1980-12-18 1980-12-18 Method for checking leakage

Country Status (1)

Country Link
JP (1) JPS57101737A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010165466A (en) * 2009-01-13 2010-07-29 Toyota Motor Corp Method and apparatus for inspection of leak from fuel cell stack
JP2014025911A (en) * 2012-07-30 2014-02-06 Hyundai Motor Company Co Ltd Pinhole inspection apparatus for membrane electrode assembly of fuel cell
WO2016100665A1 (en) * 2014-12-19 2016-06-23 Stryker Corporation Composite material with failure detection properties
US11254112B2 (en) 2019-07-31 2022-02-22 Stryker Corporation Cover with wear detection properties

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036995A (en) * 1973-08-08 1975-04-07
JPS51106484A (en) * 1975-03-17 1976-09-21 Hiroshi Ishii TANKUMIZUHARISHIKENJIROSUIKENCHIHOHO
JPS5135187B2 (en) * 1972-05-10 1976-09-30
JPS52130028A (en) * 1976-04-26 1977-11-01 Mitsubishi Heavy Ind Ltd Leakage detecting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5135187B2 (en) * 1972-05-10 1976-09-30
JPS5036995A (en) * 1973-08-08 1975-04-07
JPS51106484A (en) * 1975-03-17 1976-09-21 Hiroshi Ishii TANKUMIZUHARISHIKENJIROSUIKENCHIHOHO
JPS52130028A (en) * 1976-04-26 1977-11-01 Mitsubishi Heavy Ind Ltd Leakage detecting

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010165466A (en) * 2009-01-13 2010-07-29 Toyota Motor Corp Method and apparatus for inspection of leak from fuel cell stack
JP2014025911A (en) * 2012-07-30 2014-02-06 Hyundai Motor Company Co Ltd Pinhole inspection apparatus for membrane electrode assembly of fuel cell
WO2016100665A1 (en) * 2014-12-19 2016-06-23 Stryker Corporation Composite material with failure detection properties
US10060902B2 (en) 2014-12-19 2018-08-28 Stryker Corporation Composite material with failure detection properties
US10830753B2 (en) 2014-12-19 2020-11-10 Stryker Corporation Composite material with failure detection properties
US11254112B2 (en) 2019-07-31 2022-02-22 Stryker Corporation Cover with wear detection properties

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