JPS54110912A - Treatment of refining additive - Google Patents
Treatment of refining additiveInfo
- Publication number
- JPS54110912A JPS54110912A JP1950178A JP1950178A JPS54110912A JP S54110912 A JPS54110912 A JP S54110912A JP 1950178 A JP1950178 A JP 1950178A JP 1950178 A JP1950178 A JP 1950178A JP S54110912 A JPS54110912 A JP S54110912A
- Authority
- JP
- Japan
- Prior art keywords
- additive
- molten steel
- refining
- steel
- cac2
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
PURPOSE:To exactly prevent the occurrence of the hydrogen defect of steel material by avoiding the intermixture of moisture in molten steel by a procedure in which refining additive containing CaC2 is dehydrated by heating prior to addition. CONSTITUTION:Prior to the addition of a refining additive containing CaC2 to molten steel in a ladle, the additive is heated in the Ar atmosphere. The removal of moisture is made because the calcium hydroxide present in the additive is decomposed into calcium oxide and water. The additive thus dehydrated is blown into the molten steel by means of an inert gas, where good quality steel which is free of white spot fracture can be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1950178A JPS54110912A (en) | 1978-02-21 | 1978-02-21 | Treatment of refining additive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1950178A JPS54110912A (en) | 1978-02-21 | 1978-02-21 | Treatment of refining additive |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54110912A true JPS54110912A (en) | 1979-08-30 |
JPS5725605B2 JPS5725605B2 (en) | 1982-05-31 |
Family
ID=12001112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1950178A Granted JPS54110912A (en) | 1978-02-21 | 1978-02-21 | Treatment of refining additive |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54110912A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5634020A (en) * | 1979-08-29 | 1981-04-06 | Matsushita Electric Ind Co Ltd | Controlling device for combustion of gas |
CN112125537A (en) * | 2020-09-28 | 2020-12-25 | 辽宁鑫钙环保科技有限公司 | Industrial preparation technology of calcium hydroxide |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6393808U (en) * | 1986-12-10 | 1988-06-17 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51139514A (en) * | 1974-06-07 | 1976-12-01 | Sumitomo Metal Ind Ltd | Process for producing desulfurizing agents used for steel making |
JPS5244716A (en) * | 1975-10-07 | 1977-04-08 | Nippon Steel Corp | Method of refining molten ferroalloy |
-
1978
- 1978-02-21 JP JP1950178A patent/JPS54110912A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51139514A (en) * | 1974-06-07 | 1976-12-01 | Sumitomo Metal Ind Ltd | Process for producing desulfurizing agents used for steel making |
JPS5244716A (en) * | 1975-10-07 | 1977-04-08 | Nippon Steel Corp | Method of refining molten ferroalloy |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5634020A (en) * | 1979-08-29 | 1981-04-06 | Matsushita Electric Ind Co Ltd | Controlling device for combustion of gas |
JPS6252213B2 (en) * | 1979-08-29 | 1987-11-04 | Matsushita Electric Ind Co Ltd | |
CN112125537A (en) * | 2020-09-28 | 2020-12-25 | 辽宁鑫钙环保科技有限公司 | Industrial preparation technology of calcium hydroxide |
Also Published As
Publication number | Publication date |
---|---|
JPS5725605B2 (en) | 1982-05-31 |
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