JPS55149791A - Heat treating method of round bar enclosed weld zone - Google Patents
Heat treating method of round bar enclosed weld zoneInfo
- Publication number
- JPS55149791A JPS55149791A JP5840479A JP5840479A JPS55149791A JP S55149791 A JPS55149791 A JP S55149791A JP 5840479 A JP5840479 A JP 5840479A JP 5840479 A JP5840479 A JP 5840479A JP S55149791 A JPS55149791 A JP S55149791A
- Authority
- JP
- Japan
- Prior art keywords
- round bar
- welding
- enclosed
- base metals
- weld zone
- 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.)
- Pending
Links
Abstract
PURPOSE: To heat treat the round bar enclosed weld zone so as to have sufficient tensile strength and have all perfect values in the impact values of respective zone by holding the round bar after enclosed welding at the specified temperature then subjecting the same to water hardening and annealing followed by air cooling.
CONSTITUTION: A copper strap 7 is applied to the groove of round bar base metals 6 of hardened and annealed material and the base metals are welded by welding electrode 160W170A by using, e.g., low hydrogen type electrode containing N-13; 3.5%Ni, after which the same heat treatment as that at the time of manufacturing the base metals 6 is done. namely, after the base metal 6 having undergone this enclosed welding is held for 1 hour at 880W920°C, it is water-hardened thence annealed to 600W650°C, thence it is air cooled. As a result of this, the degradation in the toughness of each part after the welding may be reduced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5840479A JPS55149791A (en) | 1979-05-10 | 1979-05-10 | Heat treating method of round bar enclosed weld zone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5840479A JPS55149791A (en) | 1979-05-10 | 1979-05-10 | Heat treating method of round bar enclosed weld zone |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55149791A true JPS55149791A (en) | 1980-11-21 |
Family
ID=13083416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5840479A Pending JPS55149791A (en) | 1979-05-10 | 1979-05-10 | Heat treating method of round bar enclosed weld zone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55149791A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009024879A (en) * | 2003-01-08 | 2009-02-05 | Hiroshi Moriya | Camera setting base |
-
1979
- 1979-05-10 JP JP5840479A patent/JPS55149791A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009024879A (en) * | 2003-01-08 | 2009-02-05 | Hiroshi Moriya | Camera setting base |
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