JPS54100965A - Manufacture of welded large diameter steel tube for heat treatment - Google Patents
Manufacture of welded large diameter steel tube for heat treatmentInfo
- Publication number
- JPS54100965A JPS54100965A JP732278A JP732278A JPS54100965A JP S54100965 A JPS54100965 A JP S54100965A JP 732278 A JP732278 A JP 732278A JP 732278 A JP732278 A JP 732278A JP S54100965 A JPS54100965 A JP S54100965A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- value
- welding metal
- quenchability
- large diameter
- 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
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE: To obtain high srength and high toughness as well as reduce difference in hardness between inner face and outer face by selcting a higher quenchability (D1 value) of welding metal for inner side than the welding metal for outer side.
CONSTITUTION: For large diameter steel of a round section, the value of quenchability (D1 value) for the welding metal of the inner side which is higher than that of the welding metal of the outer side varies with the thickness, etc. of base metal used to a great extent, and therefore is not limiting. And, where the thickness of plate is greater, it is more effective to make D1 value difference between the outer and inner faces greater, whereas where it is thinner, it is better to make it samller. Although quenching from the outer side is described in this invention, the same is true of the case of cooling the inner and outer faces. In short, since the inner face cooling is to cool the inner side of closed structures as compared with the case of the outer face cooling, cooling ability tends to lower in general due to the waste water, etc. of quenching water, and thus the lowering of cooling ability can be compensated by increasing the quenchability.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP732278A JPS54100965A (en) | 1978-01-27 | 1978-01-27 | Manufacture of welded large diameter steel tube for heat treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP732278A JPS54100965A (en) | 1978-01-27 | 1978-01-27 | Manufacture of welded large diameter steel tube for heat treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54100965A true JPS54100965A (en) | 1979-08-09 |
Family
ID=11662727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP732278A Pending JPS54100965A (en) | 1978-01-27 | 1978-01-27 | Manufacture of welded large diameter steel tube for heat treatment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54100965A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10718061B2 (en) | 2014-12-26 | 2020-07-21 | Asahi Kasei Kabushiki Kaisha | Electrodeposition paint recovery system and method |
-
1978
- 1978-01-27 JP JP732278A patent/JPS54100965A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10718061B2 (en) | 2014-12-26 | 2020-07-21 | Asahi Kasei Kabushiki Kaisha | Electrodeposition paint recovery system and method |
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