CN1003408B - Place the method for the non-normal temperature getter that evapotranspires - Google Patents
Place the method for the non-normal temperature getter that evapotranspires Download PDFInfo
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- CN1003408B CN1003408B CN85104338.0A CN85104338A CN1003408B CN 1003408 B CN1003408 B CN 1003408B CN 85104338 A CN85104338 A CN 85104338A CN 1003408 B CN1003408 B CN 1003408B
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- normal temperature
- evapotranspires
- vacuum
- vacuum device
- temperature getter
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Abstract
The invention belongs to a kind of method of the vacuum degree that improves vacuum device run duration, method of the present invention is: the non-normal temperature getter ［ 4 ］ that evapotranspires is in vacuum ［ 1 ］ exhaust process, in active device ［ 2 ］, be activated, active device ［ 2 ］ is connected with vacuum device ［ 1 ］ by tube connector ［ 22 ］, the non-normal temperature getter ［ 4 ］ that evapotranspires after activation by car for pouring in vacuum device ［ 1 ］, last sealed-off vacuum device ［ 1 ］.
Description
The invention belongs to a kind of method of the vacuum degree that improves vacuum device run duration.
The non-normal temperature getter that evapotranspires is the effective way that improves vacuum device run duration vacuum degree.To placing the non-known technology that evapotranspires normal temperature getter in vacuum device be: in vacuum device assembling process, pack the non-normal temperature getter that evapotranspires into vacuum device inside, in exhaust process, be heated by resistive or high-frequency heating activates.This method requires to arrange special heater and necessary electric current lead-in in vacuum device, or requires the non-normal temperature getter that evapotranspires to make the form that is easy to high-frequency heating, and on exhaust station, installs thermatron.Because the activationary temperature of the non-normal temperature getter that evapotranspires is very high, thereby it must or not allow the inside being strongly heated to purchase part away from non-refractories such as glass.Activate non-evapotranspiring when normal temperature getter by high-frequency heating, it also must be away from do not allow the hardware of heat intensive in vacuum device and approach insulation crust as far as possible.Under many occasions, particularly, in small size vacuum device, these requirements are difficult to be met.Described in the U.S.'s 4382646 patents: vacuum device is put into a vacuum chamber together with the non-normal temperature getter that evapotranspires.The non-normal temperature getter that evapotranspires is placed on a platform in same vacuum chamber, and platform is positioned at vacuum device outside, near steam vent.On platform, also has a thrust unit from vacuum chamber external control.When vacuum chamber meets the requirements of vacuum degree, heat the non-normal temperature getter that evapotranspires, make it to activate.After the non-normal temperature getter that evapotranspires is cooling, the non-normal temperature getter that evapotranspires is pushed in vacuum device with thrust unit.Finally with common encapsulant or with cold seal method closed grate hole.Though this method can prevent the overheated of vacuum device inner body, the device that it need to be complicated, can not be used for large-scale vacuum device and vacuum degree requirement is high, the vacuum device of exhaust air technique complexity.
The shortcoming that the present invention is directed to said method is improved.Main points of the present invention are: as shown in drawings.Be used for activating and be connected with vacuum device (1) by tube connector (22) with the active device (2) of placing non-normal temperature getter (4) of evapotranspiring.The non-normal temperature getter (4) that evapotranspires after activation is poured in vacuum device (1) by means of the gravity of self, last sealed-off vacuum device (1).
Between the blast pipe (11) of vacuum device (1) and the exhaust tube (31) of gas extraction system (3), follow active device (2).The shell of active device (2) is a vacuum tank (21) of manufacturing with inorganic insulating materials such as glass.The metal cup (23) of a upper end open is equipped with in its inside.Metal cup (23) is vertically fixed wtih by pole (26).Metal cup (23) is filling the calandria (24) with metal cup (23) electric insulation around, the two ends of calandria (24) are connected with two current feeds (25) respectively, and current feed (25) reaches the outside of vacuum tank (21) by the wall of vacuum tank (21).The top of active device (2) has a tube connector (22) and the sidewall of blast pipe (11) to join.
Method to the non-normal temperature getter (4) that evapotranspires of the middle placement of vacuum device (1) is as follows: 1, by tube connector (22) proper implements (as tweezers) on active device (2), the non-normal temperature getter (4) that evapotranspires is put into metal cup (23); 2, the blast pipe of vacuum device (1) (11) is sealed on the exhaust tube (31) of vacuum system (3), the tube connector of active device (2) (22) is sealed on the sidewall of blast pipe (11).Active device (2) after sealing-in should be positioned at the below of vacuum device (1), and the non-normal temperature getter (4) that evapotranspires should remain in the metal cup (23) of upper end open reliably; 3, in exhaust process, tackle active device (2) and carry out bakeout degassing and switch on to calandria (24), heating of metal cup (23), to reach the object that activates non-normal temperature getter (4) of evapotranspiring; 4, in (32), exhaust tube (31) is sealed and cut off; 5, reversing vacuum device (1), makes active device (2) be positioned at the top of vacuum device (1).The non-normal temperature getter (4) that evapotranspires is fallen in vacuum device (1) by tube connector (22) and blast pipe (11) under Action of Gravity Field, locates blast pipe (11) to seal and cut off in (12); 6, take off active device (2).Active device (2) can Reusability.
Metal cup (23) in active device (2) also can be used high-frequency heating.
The advantage of method of the present invention is: 1, evapotranspire in normal temperature getter (4) activation non-; vacuum device (1) is not heated; this makes some utilize known technology can not use the vacuum device (1) of non-normal temperature getter (4) of evapotranspiring can use the non-normal temperature getter (4) that evapotranspires, thereby can greatly improve the vacuum degree that this class vacuum device (1) is in operation; 2, in vacuum device (1), do not need the device (heater etc.) that activates non-normal temperature getter (4) use of evapotranspiring is set, active device (2) is simple in structure, and can Reusability.Adopt method of the present invention to substitute after known technology, can greatly simplify the structure of vacuum device (1).Reduce thus the cost of vacuum device (1); 3, method of the present invention is applicable to the non-normal temperature getter (4) that evapotranspires of all kinds of vacuum devices (1) and various activationary temperatures.The non-< of evapotranspiring & & > gas agent (4) can obtain best activation.
Utilize known technology to be difficult to use the non-normal temperature getter (4) that evapotranspires in glass shell vacuum interrupter, utilize method of the present invention, inventor has placed the non-normal temperature getter (4) that evapotranspires glass shell vacuum extinction is indoor, and brought up to more than 30 years the storage life of vacuum interrupter from 10 years
Claims (4)
1, a kind of to the interior method of placing non-normal temperature getter (4) of evapotranspiring of vacuum device (1), it is characterized in that being connected with vacuum device (1) by tube connector (22) with the active device (2) of placing non-normal temperature getter (4) of evapotranspiring as activating, the non-normal temperature getter (4) that evapotranspires after activation is poured in vacuum device (1) by tube connector (22) and blast pipe (11) by the gravity of self, last sealed-off vacuum device (1).
2, according to claim 1, it is characterized in that the non-normal temperature getter (4) that evapotranspires is placed on one and is fixed in active device (2), in the metal cup (23) of end face opening.
3, according to claim 2, it is characterized in that metal cup (23) arranges the calandria (24) that can switch on around.
4, according to claim 2, it is characterized in that the available high-frequency heating of metal cup (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85104338.0A CN1003408B (en) | 1985-06-05 | 1985-06-05 | Place the method for the non-normal temperature getter that evapotranspires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85104338.0A CN1003408B (en) | 1985-06-05 | 1985-06-05 | Place the method for the non-normal temperature getter that evapotranspires |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85104338A CN85104338A (en) | 1986-12-03 |
| CN1003408B true CN1003408B (en) | 1989-02-22 |
Family
ID=4793779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85104338.0A Expired CN1003408B (en) | 1985-06-05 | 1985-06-05 | Place the method for the non-normal temperature getter that evapotranspires |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1003408B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110078020B (en) * | 2019-05-10 | 2022-02-08 | 江苏物联网研究发展中心 | Vacuum baking process based on getter thermal-electric composite activation |
| CN112569894B (en) * | 2019-09-30 | 2022-03-08 | 中国科学院大连化学物理研究所 | Device for activating large-volume getter and enhancing adsorption rate by radio frequency discharge plasma |
-
1985
- 1985-06-05 CN CN85104338.0A patent/CN1003408B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85104338A (en) | 1986-12-03 |
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| C13 | Decision | ||
| GR02 | Examined patent application | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |