SU894386A1 - Method of manufacturing standard leakage penetrable elements - Google Patents
Method of manufacturing standard leakage penetrable elements Download PDFInfo
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- SU894386A1 SU894386A1 SU802896896A SU2896896A SU894386A1 SU 894386 A1 SU894386 A1 SU 894386A1 SU 802896896 A SU802896896 A SU 802896896A SU 2896896 A SU2896896 A SU 2896896A SU 894386 A1 SU894386 A1 SU 894386A1
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- SU
- USSR - Soviet Union
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- capillary
- vacuum
- glass
- elements
- manufacturing standard
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- Examining Or Testing Airtightness (AREA)
Description
(5) СПОСОБ ИЗГОТОВЛЕНИЯ ПРОНИЦАЕМЫХ ЭЛЕМЕНТОВ КОНТРОЛЬНЫХ ТЕЧЕЙ(5) METHOD OF MANUFACTURING PERMITTED ELEMENTS OF CONTROL FLOWS
1one
Изобретение относитс к технике испытани изделий на герметичность, в частности к способам изготовлени проницаемых элементов контрольных течей.This invention relates to a leak testing technique, in particular to methods for producing permeable test leak elements.
Известен способ изготовлени проницаемых элементов контрольных течей, заключающийс в том, что стекл нный капилл р помещают в форму, пропускают через капилл р газ под давлением и заполн ют форму вакуумно-плотным отвердевающим полимерным материалом так, чтобы выходной канал проницаемого элемента образовывалс в полимерном материале выход щим из капилл ра газом 1.A known method of manufacturing permeable control leaks is that a glass capillary is placed in a mold, a gas is passed through a capillary under pressure, and the mold is filled with a vacuum-tight solidified polymeric material so that the outlet channel of the permeable member is formed in the polymeric material capillary gas 1.
Недостаток известного способа заключаетс в нестабильности величины пропускной способности получаемых проницаемых элементов вследствие изменений проходного сечени канала в полимерном материале, химическа стойкость которого Значительно ниже стойкости стекла при пропускании через него сред, содержащих органические растворители.The disadvantage of this method is the instability of the value of the throughput of the permeable elements obtained due to changes in the flow area of the channel in a polymeric material whose chemical resistance is significantly lower than the resistance of glass when passing media containing organic solvents through it.
Наиболее близким по технической сущности к изобретению вл етс способ изготовлени проницаемых элементов контрольных течей, заключающийс в том, что напыл ют в вакууме на наружную поверхность стекл нного капилл ра токопровод щий слой и электролитически осаждают на него ваку10 умно-плотный слой металла. При электролитическом осаждении дл исключени попадани жидкости в полость капилл ра осуществл ют продувку капилл ра газом под избыточным давлениts ем 2.The closest to the technical essence of the invention is a method of producing permeable elements of control leaks, which consists in spraying vacuum surface with a tightly dense metal layer onto vacuum surface of a glass capillary conductive layer in vacuum. In electrolytic deposition, in order to prevent liquid from entering the capillary cavity, the capillary is purged with gas under excessive pressure 2.
Недостаток указанного, способа заключаетс в ограниченности диапазона получаемых контрольных течей по пропускной способности, поскольку дл The disadvantage of this method is the limited range of the obtained control leaks in terms of throughput, because
20 продувки газом капилл ров, диаметр которых меньше 0,3 мкм, требуетс подавать газ в капилл р под давлением, превышающим его предел прочности.A gas purge capillary with a diameter of less than 0.3 µm is required to supply gas to the capillary under pressure exceeding its tensile strength.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802896896A SU894386A1 (en) | 1980-03-19 | 1980-03-19 | Method of manufacturing standard leakage penetrable elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802896896A SU894386A1 (en) | 1980-03-19 | 1980-03-19 | Method of manufacturing standard leakage penetrable elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU894386A1 true SU894386A1 (en) | 1981-12-30 |
Family
ID=20883930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802896896A SU894386A1 (en) | 1980-03-19 | 1980-03-19 | Method of manufacturing standard leakage penetrable elements |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU894386A1 (en) |
-
1980
- 1980-03-19 SU SU802896896A patent/SU894386A1/en active
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