JPS57139455A - Continuous casting method for sea water resistant steel - Google Patents
Continuous casting method for sea water resistant steelInfo
- Publication number
- JPS57139455A JPS57139455A JP2497481A JP2497481A JPS57139455A JP S57139455 A JPS57139455 A JP S57139455A JP 2497481 A JP2497481 A JP 2497481A JP 2497481 A JP2497481 A JP 2497481A JP S57139455 A JPS57139455 A JP S57139455A
- Authority
- JP
- Japan
- Prior art keywords
- generation
- prevent
- sea water
- resistant steel
- water resistant
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
Abstract
PURPOSE:To prevent the generation of defects in and out of an ingot and to improve production efficiency by limiting the amts. of Al, Si and S contained in copper-contg. high-phosphorus sea water resistant steel and performing cryogenic casting and mild cooling. CONSTITUTION:In continuous casing of a beam blank of copper-contg. high- phosphorus sea water resistant steel, the molten steel in a tundish is quickly cooled at <=20 deg.C overheating rate to prevent the generation of internal cracks. In order to prevent nozzle clogging owing to Al in low temp. casting, the Al is contained at <=0.005%, and in order to prevent the generation of blow holes, Si is contained at 0.05-0.10%. S is limited to <=0.005% to reduce internal cracks. For the purpose of giving mild cooling in molds, a flux of 10-20 poises viscosities at 1,300 deg.C is used, and the total spray ratio water flow to the growth of a solidified shell to 60mm. thickness is limited at <=0.45l/kg.min, whereby the generation of the longitudinal cracks of the ingot is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2497481A JPS5952013B2 (en) | 1981-02-24 | 1981-02-24 | Continuous casting method for seawater resistant steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2497481A JPS5952013B2 (en) | 1981-02-24 | 1981-02-24 | Continuous casting method for seawater resistant steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57139455A true JPS57139455A (en) | 1982-08-28 |
| JPS5952013B2 JPS5952013B2 (en) | 1984-12-17 |
Family
ID=12152936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2497481A Expired JPS5952013B2 (en) | 1981-02-24 | 1981-02-24 | Continuous casting method for seawater resistant steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5952013B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010115714A (en) * | 2010-03-05 | 2010-05-27 | Jfe Engineering Corp | Mold powder |
| JP2011131242A (en) * | 2009-12-24 | 2011-07-07 | Nippon Steel Corp | Continuous casting method for steel |
-
1981
- 1981-02-24 JP JP2497481A patent/JPS5952013B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011131242A (en) * | 2009-12-24 | 2011-07-07 | Nippon Steel Corp | Continuous casting method for steel |
| JP2010115714A (en) * | 2010-03-05 | 2010-05-27 | Jfe Engineering Corp | Mold powder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5952013B2 (en) | 1984-12-17 |
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