JPS6447814A - Manufacture of forged steel product without heat treatment for dehydrogenation - Google Patents
Manufacture of forged steel product without heat treatment for dehydrogenationInfo
- Publication number
- JPS6447814A JPS6447814A JP20317887A JP20317887A JPS6447814A JP S6447814 A JPS6447814 A JP S6447814A JP 20317887 A JP20317887 A JP 20317887A JP 20317887 A JP20317887 A JP 20317887A JP S6447814 A JPS6447814 A JP S6447814A
- Authority
- JP
- Japan
- Prior art keywords
- forged
- dehydrogenation
- manufacture
- heat treatment
- phase transformation
- 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 Steel (AREA)
Abstract
PURPOSE:To manufacture a forged steel product without heat treatment for dehydrogenation after forging, by forging carbon steel or the like and subjecting the forged product before finish forging to phase transformation by slow cooling and phase transformation by rapid heating under specified conditions. CONSTITUTION:Carbon steel or low-alloy steel is forged and the forged product before finish forging is subjected to gamma alpha phase transformation by slow cooling to the temp. range of about 150-250 deg.C below the Ms point. The product is then subjected to alpha gamma phase transformation by rapid heating to a reaustenitizing temp. of about 1,050-1,150 deg.C at about 100-150 deg.C/hr heating rate and finish forging and slow cooling are carried out. Thus, a forged steel product can be manufactured without heat treatment for dehydrogenation, so the cost of manufacture is reduced and the efficiency is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20317887A JPS6447814A (en) | 1987-08-17 | 1987-08-17 | Manufacture of forged steel product without heat treatment for dehydrogenation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20317887A JPS6447814A (en) | 1987-08-17 | 1987-08-17 | Manufacture of forged steel product without heat treatment for dehydrogenation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6447814A true JPS6447814A (en) | 1989-02-22 |
Family
ID=16469749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20317887A Pending JPS6447814A (en) | 1987-08-17 | 1987-08-17 | Manufacture of forged steel product without heat treatment for dehydrogenation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6447814A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080932C (en) * | 1994-03-08 | 2002-03-13 | 松下电器产业株式会社 | Metallic film for sealing semiconductor |
| CN103352170A (en) * | 2013-07-05 | 2013-10-16 | 南车戚墅堰机车车辆工艺研究所有限公司 | Alloy forged steel and production method and application thereof |
-
1987
- 1987-08-17 JP JP20317887A patent/JPS6447814A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080932C (en) * | 1994-03-08 | 2002-03-13 | 松下电器产业株式会社 | Metallic film for sealing semiconductor |
| CN103352170A (en) * | 2013-07-05 | 2013-10-16 | 南车戚墅堰机车车辆工艺研究所有限公司 | Alloy forged steel and production method and application thereof |
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