SU301593A1 - METHOD FOR SELECTING LIQUID METAL SAMPLES FOR GAS ANALYSIS - Google Patents
METHOD FOR SELECTING LIQUID METAL SAMPLES FOR GAS ANALYSISInfo
- Publication number
- SU301593A1 SU301593A1 SU1325782A SU1325782A SU301593A1 SU 301593 A1 SU301593 A1 SU 301593A1 SU 1325782 A SU1325782 A SU 1325782A SU 1325782 A SU1325782 A SU 1325782A SU 301593 A1 SU301593 A1 SU 301593A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- liquid metal
- ampoule
- gas analysis
- metal samples
- selecting liquid
- Prior art date
Links
- 229910001338 liquidmetal Inorganic materials 0.000 title description 10
- 238000004868 gas analysis Methods 0.000 title description 3
- 239000003708 ampul Substances 0.000 description 13
- 239000007789 gas Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000005070 sampling Methods 0.000 description 4
- 102100009613 LIMS3 Human genes 0.000 description 2
- 101700062712 LIMS3 Proteins 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052904 quartz Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Description
Изобретение относитс к области анализа газов в металле и может быть применено на литейных и металлургических заводах.The invention relates to the field of analysis of gases in a metal and can be applied in foundries and metallurgical plants.
Известен способ отбора пробы л идкого металла дл газового анализа путем погружеНИН конца вакуумированной ампулы в жидкий металл и последующего извлечени ампулы с открытым концом, не изолированным от окружающей среды. Но в известном способе происходит искажение состава пробы при транспортировке ампулы за счет воздействи атмосферы и улетучивани части газов.A known method of sampling liquid metal for gas analysis is by immersing the end of a vacuum ampoule into a liquid metal and then removing the ampoule with an open end not isolated from the environment. But in a known method, the composition of the sample is distorted when the ampoule is transported due to the influence of the atmosphere and the volatilization of some gases.
Предлагаемый способ позвол ет получить достоверную пробу за счет запаивани ампулы в месте отсечени пробы перед извлечением из жидкого металла.The proposed method allows to obtain a reliable sample by sealing the ampoule at the point where the sample is cut off before being removed from the liquid metal.
На чертеже представлена схема осуществлени предлагаемого способа.The drawing shows the implementation of the proposed method.
Способ заключаетс в следующем.The method is as follows.
Дл отбора проб используетс предварительна вакуумированна кварцева ампула I, имеюща пережимы 2 и 5 и специальное подготовленное дл растрескивани при погружении в жидкий металл дно 4.For sampling, a pre-evacuated quartz ampoule I is used, having clamps 2 and 5 and a special bottom 4 prepared for cracking when immersed in a liquid metal.
Отбор проб производитс погружением ампулы дном 4 в жидкий металл 5. В моментSampling is done by immersing the ampoule with the bottom 4 in a liquid metal 5. At the moment
термического удара дно ампулы растрескиваетс , жидкий металл засасываетс в ампулу и заполн ет ее до пережима 2. Газы, выдел ющиес при охлаждении металла, собираютс в объеме ампулы выше пережима 2 и частично в пустотах, образованных в самом металле образца.thermal shock the bottom of the ampoule cracks, the liquid metal is sucked into the ampoule and fills it up to pinch 2. Gases released during cooling of the metal are collected in the volume of the ampoule above pinch 2 and partially in the voids formed in the sample metal itself.
Сразу же после заполнени ампулы при опущенном в металл дне 4, загнаиваетс пережим 3. В результате этого металл, наход щийс в ампуле, и газы, выделившиес при охлаждении , а также газы, выдел ющиес при хранении пробы, оказываютс надежно изолированными от атмосферы.Immediately after filling the ampoule when the bottom 4 is lowered into the metal, the clamp 3 is driven in. As a result, the metal in the ampule and the gases released during cooling as well as the gases released during storage of the sample are reliably isolated from the atmosphere.
Предмет изобретени Subject invention
Способ отбора пробы жидкого металла дл газового анализа путем погружени конца вакуумированной ампулы в жидкий металл, отличающийс тем, что, с целью получени достоверной пробы, ампулу перед извлечением из жидкого металла запаивают в месте отсечени пробы.The method of sampling a liquid metal for gas analysis by immersing the end of a vacuum ampoule in a liquid metal, characterized in that, in order to obtain a reliable sample, the ampoule is sealed at the cut-off point of the sample before the liquid is removed from the liquid metal.
Publications (1)
Publication Number | Publication Date |
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SU301593A1 true SU301593A1 (en) |
Family
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4995270A (en) * | 1987-05-01 | 1991-02-26 | Injectall Limited | Molten metal sampling |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4995270A (en) * | 1987-05-01 | 1991-02-26 | Injectall Limited | Molten metal sampling |
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