SU834426A1 - Method of checking article fluid tightness - Google Patents

Method of checking article fluid tightness Download PDF

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Publication number
SU834426A1
SU834426A1 SU792818822A SU2818822A SU834426A1 SU 834426 A1 SU834426 A1 SU 834426A1 SU 792818822 A SU792818822 A SU 792818822A SU 2818822 A SU2818822 A SU 2818822A SU 834426 A1 SU834426 A1 SU 834426A1
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SU
USSR - Soviet Union
Prior art keywords
solution
fluid tightness
product
checking article
tightness
Prior art date
Application number
SU792818822A
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Russian (ru)
Inventor
Владимир Борисович Лемберский
Original Assignee
Lemberskij Vladimir B
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Application filed by Lemberskij Vladimir B filed Critical Lemberskij Vladimir B
Priority to SU792818822A priority Critical patent/SU834426A1/en
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Publication of SU834426A1 publication Critical patent/SU834426A1/en

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Description

(54) СПОСОБ КОНТРОЛЯ ГЕРМЕТИЧНОСТИ ИЗДЕЛИЙ(54) METHOD FOR CONTROL OF TIGHTNESS OF PRODUCTS

1one

Изобретение относитс  к технике испытани  изделий на герметичность.This invention relates to a leak testing technique.

Известен способ контрол  герметичности изделий, заключающийс  в том, что на внутреннюю поверхность издели  нанос т слой пробного вещества, а о герметичности суд т по по влению признаков этого вещества на внешней стороне издели  1.There is a method of controlling the tightness of products, which consists in the fact that a layer of a test substance is applied to the inner surface of the product, and the tightness is judged by the appearance of signs of this substance on the outer side of the product 1.

Недостатком этого способа  вл етс  его низка  чувствительность, так как действи  капилл рных сил иногда оказываетс  недостаточно дл  преодолени  пробным веществвом сквозных дефектов больщой прот женности .The disadvantage of this method is its low sensitivity, since the action of capillary forces is sometimes not enough to overcome the test substance through defects of great length.

Наиболее близким по технической сущности и достигаемому результату к предлагаемЪму  вл етс  способ контрол  герметичности изделий, заключающийс  в том, что контролируемую поверхность издели  покрывают слоем раствора, создают в растворе избыточное давление и о герметичности суд т по по влению п тен раствора па противоположной стороне издели  2.The closest in technical essence and the achieved result to the proposed method is the method of controlling the tightness of products, which means that the controlled surface of the product is covered with a layer of solution, an overpressure is created in the solution and the leakage is judged to appear on the opposite side of the product .

Недостатком способа  вл етс  его сложность , заключающа с  в необходимости использовани  определенных техническихThe disadvantage of the method is its complexity, which consists in the necessity of using certain technical

средств, например компрессоров и т. п., дл  создани  избыточного давлени  в растворе. Цель изобретени  - упрощение контрол .means, for example, compressors, etc., to create an overpressure in the solution. The purpose of the invention is to simplify the control.

Поставленна  цель достигаетс  тем, что избыточное давление в растворе создают путем установки на поверхность раствора полупропицаемой пленки, на которую нанос т слой чистого растворител .This goal is achieved by creating an excess pressure in the solution by installing a semi-subcutaneous film on the surface of the solution, onto which a layer of pure solvent is applied.

Способ осуществл етс  следующим образом .The method is carried out as follows.

Контролируемую поверхность издели  по крывают слоем 8%-rioro раствора полиметил метакрилата в ацетоне. На поверхность раствора устанавливают на опоры камеру из денитрированного коллоди  так, чтобы дно камеры вошло в соприкосновение со слоемThe controlled surface of the product is coated with a layer of 8% -rioro solution of polymethyl methacrylate in acetone. On the surface of the solution, a chamber of denitrated collodies is mounted on the supports so that the bottom of the chamber comes into contact with the layer

раствора. Затем камеру заполн ют чистым ацетоном. Благодар  тому, что денитрированный коллодий  вл етс  полупроницаемым дл  данного раствора, в последнем создаетс  избыточное осмотическое давление,solution. The chamber is then filled with pure acetone. Due to the fact that denitrated collodion is semipermeable for a given solution, in the latter an excessive osmotic pressure is created,

способствующее его проникновению через сквозные дефекты издели . Изделие считают герметичным при отсутствии п тен раствора на его противоположной поверхности.contributing to its penetration through the through defects of the product. A product is considered hermetic in the absence of a stain of solution on its opposite surface.

Предлагаемый способ позвол ет проводить эффективный контроль герметичности изделий без применени  каких-либо внешних источников энергии.The proposed method allows effective monitoring of the leaktightness of products without the use of any external energy sources.

Claims (2)

1.«Автоматическа  сварка, 1975, № 3, с. 10-15.1. “Automatic welding, 1975, No. 3, p. 10-15. 2.Авторское свидетельство СССР2. USSR author's certificate № 502267, кл. G 01 М 3/04, 1976 (прототип ).No. 502267, cl. G 01 M 3/04, 1976 (prototype).
SU792818822A 1979-07-30 1979-07-30 Method of checking article fluid tightness SU834426A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU792818822A SU834426A1 (en) 1979-07-30 1979-07-30 Method of checking article fluid tightness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU792818822A SU834426A1 (en) 1979-07-30 1979-07-30 Method of checking article fluid tightness

Publications (1)

Publication Number Publication Date
SU834426A1 true SU834426A1 (en) 1981-05-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU792818822A SU834426A1 (en) 1979-07-30 1979-07-30 Method of checking article fluid tightness

Country Status (1)

Country Link
SU (1) SU834426A1 (en)

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