JPS5732885A - Evacuating device of electron beam welding device - Google Patents
Evacuating device of electron beam welding deviceInfo
- Publication number
- JPS5732885A JPS5732885A JP10994880A JP10994880A JPS5732885A JP S5732885 A JPS5732885 A JP S5732885A JP 10994880 A JP10994880 A JP 10994880A JP 10994880 A JP10994880 A JP 10994880A JP S5732885 A JPS5732885 A JP S5732885A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- baffle plate
- valve
- electron beam
- mechanical booster
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To start an oil rotary vacuum pump and a mechanical booster pump simultaneously by incorporating a baffle plate into the vacuum pump inserted between a welding chamber and the mechanical booster pump, and operating the same simultaneously with a valve.
CONSTITUTION: A baffle plate 14 is inserted together with a vacuum pump 3 into between the vacuum pipings 9 and 10 between a welding chamber 1 and a mechanical booster pump 4. This baffle plate 14 is operated synchronously with the valve 3, so that no large load is applied upon the pump 4 despite simultaneous operation of an oil rotary vacuum pump 6 and the pump 4. For example, the degree of opening of the valve 3 is so set as to be gradually increased and to be fully opened 2W3sec after together with the baffle plate 14 in synchronization therewith, it is possible to start the pump 4 simultaneously with the pump 6 from the atmosphere pressure. Thereby, the working efficiency of electron beam welding is improved.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10994880A JPS5732885A (en) | 1980-08-08 | 1980-08-08 | Evacuating device of electron beam welding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10994880A JPS5732885A (en) | 1980-08-08 | 1980-08-08 | Evacuating device of electron beam welding device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5732885A true JPS5732885A (en) | 1982-02-22 |
JPH0212676B2 JPH0212676B2 (en) | 1990-03-23 |
Family
ID=14523169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10994880A Granted JPS5732885A (en) | 1980-08-08 | 1980-08-08 | Evacuating device of electron beam welding device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5732885A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011036896A (en) * | 2009-08-17 | 2011-02-24 | Mitsubishi Heavy Ind Ltd | Electron beam welding equipment |
-
1980
- 1980-08-08 JP JP10994880A patent/JPS5732885A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011036896A (en) * | 2009-08-17 | 2011-02-24 | Mitsubishi Heavy Ind Ltd | Electron beam welding equipment |
Also Published As
Publication number | Publication date |
---|---|
JPH0212676B2 (en) | 1990-03-23 |
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