JPS5680379A - Welding method of low alloy steel - Google Patents
Welding method of low alloy steelInfo
- Publication number
- JPS5680379A JPS5680379A JP15565279A JP15565279A JPS5680379A JP S5680379 A JPS5680379 A JP S5680379A JP 15565279 A JP15565279 A JP 15565279A JP 15565279 A JP15565279 A JP 15565279A JP S5680379 A JPS5680379 A JP S5680379A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- alloy steel
- low alloy
- heat affected
- low
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/001—Interlayers, transition pieces for metallurgical bonding of workpieces
- B23K35/004—Interlayers, transition pieces for metallurgical bonding of workpieces at least one of the workpieces being of a metal of the iron group
Abstract
PURPOSE:To make it possible to improve toughness of welding heat affected parts of low alloy steel and to prevent that the part becomes brittle when it is used, by forming a padding welded part having complete martensite structure previously at the welding heat affected part of groove section, and then by performing a welding which fills up the groove section. CONSTITUTION:In welding methods for low alloy steel, especially for 2.25Cr-1Mo steel, welded part 2 is formed with a low heat input (<=15KJ/cm welding heat input amount) and a low preheating temperature (<=130 deg.C) at the surface section of beveling of welding material 1, so that the structure of heat affected part may become a martensite structure, and then joint welding 3 is performed to fill up beveling 2 with a relatively high preheating temperature as in the case of conventional methods. Thus a welding heat affected part which is excellent in toughness is obtained and an effect is achieved in prevention of brittleness of low alloy steel while it is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15565279A JPS5680379A (en) | 1979-12-03 | 1979-12-03 | Welding method of low alloy steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15565279A JPS5680379A (en) | 1979-12-03 | 1979-12-03 | Welding method of low alloy steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5680379A true JPS5680379A (en) | 1981-07-01 |
Family
ID=15610637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15565279A Pending JPS5680379A (en) | 1979-12-03 | 1979-12-03 | Welding method of low alloy steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5680379A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6068176A (en) * | 1983-09-26 | 1985-04-18 | Kobe Steel Ltd | Butt welding method of heavy-gauge low-alloy steel |
-
1979
- 1979-12-03 JP JP15565279A patent/JPS5680379A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6068176A (en) * | 1983-09-26 | 1985-04-18 | Kobe Steel Ltd | Butt welding method of heavy-gauge low-alloy steel |
| JPH0242027B2 (en) * | 1983-09-26 | 1990-09-20 |
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