JPS54155153A - Preventing method for stress corrosion cracking for sensitized zone of welding - Google Patents
Preventing method for stress corrosion cracking for sensitized zone of weldingInfo
- Publication number
- JPS54155153A JPS54155153A JP6330278A JP6330278A JPS54155153A JP S54155153 A JPS54155153 A JP S54155153A JP 6330278 A JP6330278 A JP 6330278A JP 6330278 A JP6330278 A JP 6330278A JP S54155153 A JPS54155153 A JP S54155153A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- zone
- overlay
- welding
- overlay welding
- 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
Landscapes
- Heat Treatment Of Articles (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
PURPOSE: To perfectly prevent the inner surface of the pipe from generation of the stress corrosion cracking, by carrying out the overlay welding all over the outer surface of the pipe corresponding to the sensitized zone of the parent metal, after carrying out the overlay welding for the inner surface of the pipe like as the piping material, etc., under cooling of the inner surface of the pipe, including the sensitized zone, caused by above overlay welding, of the parent metal at the toe of overlay weld and the overlaid zone.
CONSTITUTION: The overlay welding 4 with the corrosion resisting material is applied to the parent metal 1 of the inner surface of the pipe; then, the overlay welding 7 is carried out with the welding torch all over the outer surface of the pipe located just above the sensitized zone 5 at the toe of overlay weld. On the other hand, while this overlay welding work, water supplied from the arrowed direction, is sprayed through the spray purger 8, over the portion including the initial overlay weld zone 4 and the sensitized zone 5. A temperature gradient is caused between the inner and outer surfaces depending on the overlay welding for the outer surface of the pipe under water cooling of the inner surface of the pipe; this temperature gradient causes a largt residual compression stress at the sensitized zone 5 of the parent metal of the toe of overlay weld in the inner surface of the pipe.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6330278A JPS6045033B2 (en) | 1978-05-29 | 1978-05-29 | Method for preventing stress corrosion cracking in weld sensitized areas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6330278A JPS6045033B2 (en) | 1978-05-29 | 1978-05-29 | Method for preventing stress corrosion cracking in weld sensitized areas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54155153A true JPS54155153A (en) | 1979-12-06 |
| JPS6045033B2 JPS6045033B2 (en) | 1985-10-07 |
Family
ID=13225367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6330278A Expired JPS6045033B2 (en) | 1978-05-29 | 1978-05-29 | Method for preventing stress corrosion cracking in weld sensitized areas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6045033B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6809874B1 (en) | 2002-01-14 | 2004-10-26 | Lightmaster Systems, Inc. | Pathlength matched beam splitter and method and apparatus for assembly |
| US6909556B2 (en) | 2002-01-14 | 2005-06-21 | Lightmaster Systems, Inc. | Design of prism assemblies and kernel configurations for use in projection systems |
| US6982829B1 (en) | 2002-08-23 | 2006-01-03 | Lightmaster Systems, Inc | Prism assembly with cholesteric reflectors |
| US7280281B2 (en) | 2002-03-05 | 2007-10-09 | Berg & Berg Enterprises, Inc. | Method and apparatus for increasing microdisplay black state in light management systems and flexibility to utilize polarized or unpolarized input light |
-
1978
- 1978-05-29 JP JP6330278A patent/JPS6045033B2/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6809874B1 (en) | 2002-01-14 | 2004-10-26 | Lightmaster Systems, Inc. | Pathlength matched beam splitter and method and apparatus for assembly |
| US6909556B2 (en) | 2002-01-14 | 2005-06-21 | Lightmaster Systems, Inc. | Design of prism assemblies and kernel configurations for use in projection systems |
| US7006297B2 (en) | 2002-01-14 | 2006-02-28 | Lightmaster Systems, Inc. | Pathlength matched beam splitter and method and apparatus for assembly |
| US7280281B2 (en) | 2002-03-05 | 2007-10-09 | Berg & Berg Enterprises, Inc. | Method and apparatus for increasing microdisplay black state in light management systems and flexibility to utilize polarized or unpolarized input light |
| US6982829B1 (en) | 2002-08-23 | 2006-01-03 | Lightmaster Systems, Inc | Prism assembly with cholesteric reflectors |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6045033B2 (en) | 1985-10-07 |
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