JPS5747826A - Production of iron of low hardness - Google Patents
Production of iron of low hardnessInfo
- Publication number
- JPS5747826A JPS5747826A JP12176280A JP12176280A JPS5747826A JP S5747826 A JPS5747826 A JP S5747826A JP 12176280 A JP12176280 A JP 12176280A JP 12176280 A JP12176280 A JP 12176280A JP S5747826 A JPS5747826 A JP S5747826A
- Authority
- JP
- Japan
- Prior art keywords
- iron
- furnace
- temps
- forging
- pure iron
- 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 obtain iron of soft hardness suitable for a soft hammer blank material by forging pure iron at above ordinary temp. or specific temps., then heating the same at above said specific temps. in a furnace then cooling the same in the furnace.
CONSTITUTION: Pure iron of ≥99.5wt% purity and ≤0.01wt% carbon content is cold-forged at ordinary temp., or is hot-forged at about above 990°C, that is, at temps. above the transformation point of iron. This hot forging temps. are more preferably about 900W about 1,000°C. Thence, the pure iron after the forging is heated to about 900W about 1,100°C temps. in a furnace of tightly closed type, after which it is furnace cooled. This furnace cooling is accomplished by interrupting the heat source after the heating and natural cooling the pure iron while the furnace is held closed. The resultant iron exhibits ≤90 Vickers hardness and in some cases, it exhibits ≤80. In place of copper, this iron is usable for iron hammer blank materials and other applications.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12176280A JPS5747826A (en) | 1980-09-04 | 1980-09-04 | Production of iron of low hardness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12176280A JPS5747826A (en) | 1980-09-04 | 1980-09-04 | Production of iron of low hardness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5747826A true JPS5747826A (en) | 1982-03-18 |
Family
ID=14819248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12176280A Pending JPS5747826A (en) | 1980-09-04 | 1980-09-04 | Production of iron of low hardness |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5747826A (en) |
-
1980
- 1980-09-04 JP JP12176280A patent/JPS5747826A/en active Pending
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