SU136945A1 - The way to check the tightness of closed shells - Google Patents

The way to check the tightness of closed shells

Info

Publication number
SU136945A1
SU136945A1 SU675133A SU675133A SU136945A1 SU 136945 A1 SU136945 A1 SU 136945A1 SU 675133 A SU675133 A SU 675133A SU 675133 A SU675133 A SU 675133A SU 136945 A1 SU136945 A1 SU 136945A1
Authority
SU
USSR - Soviet Union
Prior art keywords
tightness
check
way
shell
closed shells
Prior art date
Application number
SU675133A
Other languages
Russian (ru)
Inventor
В.И. Варданян
н В.И. Вардан
Б.П. Дробышев
Е.П. Дробышев
И.Л. Грандилевская
И.Л. Грандилевска
Г.М. Ильина
Г.И. Тодорова
И.Г. Шкуропат
Original Assignee
н В.И. Вардан
Б.П. Дробышев
Е.П. Дробышев
И.Л. Грандилевска
Г.М. Ильина
Г.И. Тодорова
И.Г. Шкуропат
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 н В.И. Вардан, Б.П. Дробышев, Е.П. Дробышев, И.Л. Грандилевска, Г.М. Ильина, Г.И. Тодорова, И.Г. Шкуропат filed Critical н В.И. Вардан
Priority to SU675133A priority Critical patent/SU136945A1/en
Application granted granted Critical
Publication of SU136945A1 publication Critical patent/SU136945A1/en

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  • Examining Or Testing Airtightness (AREA)

Description

Известные способы проверки герметичности замкнутых оболочек, основанные на введении иод давлением внутрь оболочки газа и обнаружении дефектов по его просачиванию через треш,ины при погружении оболочки в жидкость, не дают возможности определ ть микротрещины,  вл ютс  недостаточно эффективными и вместе с тем сложными.The known methods of testing the tightness of closed shells, based on the introduction of iodine by pressure into the gas envelope and the detection of defects by its leakage through the trash, and when immersed in the liquid, do not allow microcracks to be detected, are not efficient enough and yet difficult.

Предлагаемый способ отличаетс  от известных простотой, повышенной эффективностью, а также упропденным процессом введени  в оболочку веш ества. Это достигаетс  использованием в качестве вещества , вводимого в оболочку, фенолфталеина, а в качестве жидкости - и елочи, что при их соединении дает  ркое окрашивание дефектных участков . Введение в оболочку вещества производитс  путем погружени  ее в это вещество при повышенном наружном давлении.The proposed method differs from the known ones by its simplicity, increased efficiency, as well as by the simplified process of introducing material into the shell. This is achieved by using phenolphthalein as a substance introduced into the shell, and as a liquid, as well, which, when combined, gives a bright staining to the defective areas. The substance is introduced into the shell by immersing it in this substance at an increased external pressure.

Дл  проверки герметичности оболочек и швов внутрь оболочки вводитс  вещество, которое, просачива сь сквозь щели и соедин  сь с внешней средой, резко измен ет свою или ее окраску. В качестве вещества, вводимого внутрь оболочки, используетс  3%-ный раствор фенолфталеина в этиловом спирте в количестве 1-2 капель на 1 см внутреннего объема оболочки, в качестве внешней среды, в которую погружаетс  исследуема  на герметичность оболочка, - 5%-ный водный раствор или аммиачна  вода при 20-60°.To check the tightness of the shells and seams, a substance is introduced into the sheath, which, leaking through the gaps and connecting with the external environment, drastically changes its or its color. A 3% solution of phenolphthalein in ethyl alcohol in the amount of 1-2 drops per 1 cm of the internal volume of the shell is used as a substance introduced into the shell, as the external environment in which the shell is tested for leak tightness — 5% aqueous solution or ammonia water at 20-60 °.

После опускани  исследуемой оболочки в жидкую среду при наличии случайного попадани  индикатора на внешнюю часть оболочки в местах по влени  загр знени  наблюдаетс   рка  окраска, .котора  (вследствие разложени  фенолфталеина щелочью) исчезает в течение первых 2-3 сек. В местах нарущени  вакуумной плотности соединени  при наличии сквозных микротрещин наблюдаетс  локальное ( ркокрасное ) окрашивание, по расположению и степени которого можно судить о расположении и степени дефекта. В случае значительных дефектов ихAfter the test shell is lowered into the liquid medium, if an indicator is accidentally placed on the outer part of the shell, in places of contamination, a red color is observed, which (due to decomposition of phenolphthalein by alkali) disappears within the first 2-3 seconds. In places where the vacuum density of the compound is disturbed, in the presence of through microcracks, a local (red) staining is observed, according to the location and degree of which one can judge the location and degree of the defect. In case of significant defects

SU675133A 1960-07-29 1960-07-29 The way to check the tightness of closed shells SU136945A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU675133A SU136945A1 (en) 1960-07-29 1960-07-29 The way to check the tightness of closed shells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU675133A SU136945A1 (en) 1960-07-29 1960-07-29 The way to check the tightness of closed shells

Publications (1)

Publication Number Publication Date
SU136945A1 true SU136945A1 (en) 1960-11-30

Family

ID=48293184

Family Applications (1)

Application Number Title Priority Date Filing Date
SU675133A SU136945A1 (en) 1960-07-29 1960-07-29 The way to check the tightness of closed shells

Country Status (1)

Country Link
SU (1) SU136945A1 (en)

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