JPS55131153A - Manufacture of a -zn-mg type alloy with high bulgeability and extrudability, and extruded material thereof - Google Patents
Manufacture of a -zn-mg type alloy with high bulgeability and extrudability, and extruded material thereofInfo
- Publication number
- JPS55131153A JPS55131153A JP3712579A JP3712579A JPS55131153A JP S55131153 A JPS55131153 A JP S55131153A JP 3712579 A JP3712579 A JP 3712579A JP 3712579 A JP3712579 A JP 3712579A JP S55131153 A JPS55131153 A JP S55131153A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- bulgeability
- extruded material
- extruded
- extrudability
- 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.)
- Granted
Links
Abstract
PURPOSE: To provide the title alloy contg. a respectively specified ratio of Zn, Mg, Zr, Mn, Cr and esp. B and giving a product with a surface grade free from cracking by extrusion.
CONSTITUTION: This Al-Zn-Mg type alloy contains 3W8% Zn, 0.5W3% Mg, 0.01W0.05% Zr 0.1W0.5% Mn, 0.01W0.15% Cr and 0.005W less than 0.02% B. By esp. adding B this alloy has improved hardenability, bulgeability and surface properties. A billet of this alloy is homogenized by sufficient heating at 400W550°C to enhance the stress corrosion cracking resistance. The homogenized billet is then extruded at 400W550°C to form a uniform fine recrystallized structure up to a depth of about 0.1mm from the suface of the resulting extruded surface. Thus, seizing to dies is prevented in extrusion, and the extruded material has a high surface grade.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3712579A JPS55131153A (en) | 1979-03-30 | 1979-03-30 | Manufacture of a -zn-mg type alloy with high bulgeability and extrudability, and extruded material thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3712579A JPS55131153A (en) | 1979-03-30 | 1979-03-30 | Manufacture of a -zn-mg type alloy with high bulgeability and extrudability, and extruded material thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55131153A true JPS55131153A (en) | 1980-10-11 |
JPS629662B2 JPS629662B2 (en) | 1987-03-02 |
Family
ID=12488876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3712579A Granted JPS55131153A (en) | 1979-03-30 | 1979-03-30 | Manufacture of a -zn-mg type alloy with high bulgeability and extrudability, and extruded material thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55131153A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220236563A1 (en) | 2019-06-27 | 2022-07-28 | Ricoh Company, Ltd. | Optical device, image display, and optometric apparatus |
-
1979
- 1979-03-30 JP JP3712579A patent/JPS55131153A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS629662B2 (en) | 1987-03-02 |
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