JPH0249553Y2 - - Google Patents
Info
- Publication number
- JPH0249553Y2 JPH0249553Y2 JP1985049640U JP4964085U JPH0249553Y2 JP H0249553 Y2 JPH0249553 Y2 JP H0249553Y2 JP 1985049640 U JP1985049640 U JP 1985049640U JP 4964085 U JP4964085 U JP 4964085U JP H0249553 Y2 JPH0249553 Y2 JP H0249553Y2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- tube
- hood
- test specimen
- detection
- 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.)
- Expired
Links
- 238000012360 testing method Methods 0.000 claims description 47
- 238000001514 detection method Methods 0.000 claims description 24
- 238000007664 blowing Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 53
- 239000001307 helium Substances 0.000 description 20
- 229910052734 helium Inorganic materials 0.000 description 20
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 20
- 230000007547 defect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 238000005192 partition Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985049640U JPH0249553Y2 (fr) | 1985-04-03 | 1985-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985049640U JPH0249553Y2 (fr) | 1985-04-03 | 1985-04-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61165443U JPS61165443U (fr) | 1986-10-14 |
| JPH0249553Y2 true JPH0249553Y2 (fr) | 1990-12-27 |
Family
ID=30567031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985049640U Expired JPH0249553Y2 (fr) | 1985-04-03 | 1985-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0249553Y2 (fr) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5689040A (en) * | 1979-12-21 | 1981-07-20 | Hitachi Ltd | Evacuated leak detector |
-
1985
- 1985-04-03 JP JP1985049640U patent/JPH0249553Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5689040A (en) * | 1979-12-21 | 1981-07-20 | Hitachi Ltd | Evacuated leak detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61165443U (fr) | 1986-10-14 |
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