JPS575813A - Method of adding rare earth element containing material to molten steel - Google Patents
Method of adding rare earth element containing material to molten steelInfo
- Publication number
- JPS575813A JPS575813A JP8067280A JP8067280A JPS575813A JP S575813 A JPS575813 A JP S575813A JP 8067280 A JP8067280 A JP 8067280A JP 8067280 A JP8067280 A JP 8067280A JP S575813 A JPS575813 A JP S575813A
- Authority
- JP
- Japan
- Prior art keywords
- molten steel
- rem
- iron powder
- powder particles
- rare earth
- 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 upgrade the ductility, toughness and anisotropy of the steel material obtained, by adding a rare earth element containing material (REM) to molten steel in parallel with iron powder particles.
CONSTITUTION: While the molten steel in a ladle 1 is being supplied into a pouring pipe 4 as a casting stream 3, REM10 in a hopper 12 and the iron powder particles 20 in a hopper 22 are through shoots 11 and 21, respectively, added to and mixed with the casting stream 3. Before the molten steel with these materials added is supplied into a casting mold 7 or it is cooled to solidify in the casting mold 7, the REM10 and the iron powder particles 20 are molten and the REM bonds with S and O in the molten steel and is uniformly dispersed in the molten steel in the form of the REM-containing inclusion. Before the precipitation and collection phenomena of the REM-containing inclusions occur, the solidification of the molten steel is completed due to the solidification accelerating effect of the particles 20. Therefore, the form controlling effect of the REM-containing inclusions is upgraded and anisotropy, etc. in mechanical properties are improved.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8067280A JPS575813A (en) | 1980-06-13 | 1980-06-13 | Method of adding rare earth element containing material to molten steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8067280A JPS575813A (en) | 1980-06-13 | 1980-06-13 | Method of adding rare earth element containing material to molten steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS575813A true JPS575813A (en) | 1982-01-12 |
| JPS5735244B2 JPS5735244B2 (en) | 1982-07-28 |
Family
ID=13724844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8067280A Granted JPS575813A (en) | 1980-06-13 | 1980-06-13 | Method of adding rare earth element containing material to molten steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS575813A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58218347A (en) * | 1982-03-11 | 1983-12-19 | ブリティッシュ、スティール、パブリック、リミテッド、カンパニー | Method and apparatus for cooling liquid material |
| GB2292705A (en) * | 1993-05-21 | 1996-03-06 | Warman Int Ltd | Microstructurally refined multiphase castings |
-
1980
- 1980-06-13 JP JP8067280A patent/JPS575813A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58218347A (en) * | 1982-03-11 | 1983-12-19 | ブリティッシュ、スティール、パブリック、リミテッド、カンパニー | Method and apparatus for cooling liquid material |
| GB2292705A (en) * | 1993-05-21 | 1996-03-06 | Warman Int Ltd | Microstructurally refined multiphase castings |
| US5803152A (en) * | 1993-05-21 | 1998-09-08 | Warman International Limited | Microstructurally refined multiphase castings |
| AU698777B2 (en) * | 1993-05-21 | 1998-11-05 | Warman International Limited | Microstructurally refined multiphase castings |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5735244B2 (en) | 1982-07-28 |
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