SU1421898A1 - Method of thermal testing of articles at reduced pressure - Google Patents
Method of thermal testing of articles at reduced pressure Download PDFInfo
- Publication number
- SU1421898A1 SU1421898A1 SU853891662A SU3891662A SU1421898A1 SU 1421898 A1 SU1421898 A1 SU 1421898A1 SU 853891662 A SU853891662 A SU 853891662A SU 3891662 A SU3891662 A SU 3891662A SU 1421898 A1 SU1421898 A1 SU 1421898A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- reduced pressure
- chamber
- articles
- thermal testing
- cooled
- Prior art date
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Description
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Изобретение относитс к испытательной термовакуумной технике и может быть использовано дл охлаждени объектов, работающих при пониженном давлении.The invention relates to a test thermal vacuum technique and can be used to cool objects operating under reduced pressure.
Цель изобретени - сокращение времени испытани .The purpose of the invention is to reduce the test time.
На чертеже изображена схема устройства дл реализации способа.The drawing shows a diagram of the device for implementing the method.
Устройство содержит охлаждаемую камеру 1, на стенке которой размещен экран крионасоса 2 и нагреватель 3. Камера 1 снабжена крыщкой 4, в стенку которой введен газоввод 5, соединенный с одной стороны с трубопроводом 6, имеющим охлаждающее устройство 7, а также сопла 8, обращенные к изделию 9, с другой стороны с дросселем 0 и смесителем 11. Смеситель 11 и камера 1 имеют собственные от- качные системы 12 и 13с вентил ми 14 и 15.The device contains a cooled chamber 1, on the wall of which is placed the screen of the cryopump 2 and the heater 3. The chamber 1 is equipped with a lid 4, into the wall of which a gas inlet 5 is connected, connected on one side to the pipeline 6 having a cooling device 7, and also nozzles 8 facing product 9, on the other hand, with choke 0 and mixer 11. Mixer 11 and chamber 1 have their own return systems 12 and 13 with valves 14 and 15.
Устройство работает следующим образом.The device works as follows.
-н- -n-
Испытуемое изделие 9 размещаетс внутри камеры 1, камеру герметизируют крыщкой 4, а с помощью откачной системы 13 камеры 1 и экрана крионасоса 2 понижают давление в рабочем объеме камеры до 10 мм рт. ст. Затем нагревают изделие 9 с помощью нагревател 3 до температуры необходимой дл испытаний. После выдержки отключаетс нагреватель и производитс , например, подача газообразного гели и азота в смеситель 11 в соотнощении, например , 3:1. Затем откачивают объем смесител 11 системой откачки 12 до давлени большего , чем давление в рабочем объеме камеры на 10 -10 мм рт. ст. С помопдьюThe test article 9 is placed inside the chamber 1, the chamber is sealed with a lid 4, and using the pumping system 13 of the chamber 1 and the screen of the cryopump 2, the pressure in the working volume of the chamber is reduced to 10 mm Hg. Art. Then the product 9 is heated with the help of heater 3 to the temperature required for testing. After exposure, the heater is turned off and, for example, gaseous gels and nitrogen are supplied to the mixer 11 in a ratio of, for example, 3: 1. Then the volume of the mixer 11 is pumped out by the pumping system 12 to a pressure greater than the pressure in the working volume of the chamber by 10 -10 mm Hg. Art. With pomopdyu
дроссел 10 периодической подачей в камеру 1 ввод т газовую смесь, котора в трубопроводе 6 дополнительно охлаждаетс с помощью охлаждающего устройства 7. Газ, выход из сопел 8, интенсивно охлаждает изделие. Во врем подачи газовой с.месиThe throttle 10 is periodically supplied to the chamber 1 by introducing a gas mixture, which is further cooled in the pipeline 6 by means of a cooling device 7. The gas, the outlet from the nozzles 8, intensively cools the product. During the supply of gas mixture
производитс регулировка откачки камеры с помоп1,ью вентил 15.The pumping of the chamber is adjusted with the help of valve 15.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU853891662A SU1421898A1 (en) | 1985-04-29 | 1985-04-29 | Method of thermal testing of articles at reduced pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU853891662A SU1421898A1 (en) | 1985-04-29 | 1985-04-29 | Method of thermal testing of articles at reduced pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1421898A1 true SU1421898A1 (en) | 1988-09-07 |
Family
ID=21175809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU853891662A SU1421898A1 (en) | 1985-04-29 | 1985-04-29 | Method of thermal testing of articles at reduced pressure |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1421898A1 (en) |
-
1985
- 1985-04-29 SU SU853891662A patent/SU1421898A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР № 573610, кл. F 04 И /14, 1971. * |
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