JPS5538975A - Recarburizer for iron manufacture and steel making - Google Patents
Recarburizer for iron manufacture and steel makingInfo
- Publication number
- JPS5538975A JPS5538975A JP11270378A JP11270378A JPS5538975A JP S5538975 A JPS5538975 A JP S5538975A JP 11270378 A JP11270378 A JP 11270378A JP 11270378 A JP11270378 A JP 11270378A JP S5538975 A JPS5538975 A JP S5538975A
- Authority
- JP
- Japan
- Prior art keywords
- graphite
- recarburizer
- earthy
- recarburizing
- superior
- 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
- C21C7/0025—Adding carbon material
Abstract
PURPOSE:To provide the title recarburizer with a superior recarburizing property by calcining earthy graphite of low ash content at a high temp. in the absence of air. CONSTITUTION:Earthy graphite contg. below 12% ashes is charged into a refractory sheath, which is covered to isolate the graphite from the external atmosphere. This sheath is placed in a tunnel calcination furnace and calcined at the highest temp. of 1200 deg.C for 3hr. Sulfur contained in the graphite is reduced from about 0.2% to about 0.1%. The calcined graphite is superior to ash-rich earthy graphite in recarburizing property, and it is used as a recarburizer for hot iron and molten steel in place of an artificial graphite recarburizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11270378A JPS6043888B2 (en) | 1978-09-13 | 1978-09-13 | Carburizer for iron and steel manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11270378A JPS6043888B2 (en) | 1978-09-13 | 1978-09-13 | Carburizer for iron and steel manufacturing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5538975A true JPS5538975A (en) | 1980-03-18 |
| JPS6043888B2 JPS6043888B2 (en) | 1985-10-01 |
Family
ID=14593376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11270378A Expired JPS6043888B2 (en) | 1978-09-13 | 1978-09-13 | Carburizer for iron and steel manufacturing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6043888B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02218718A (en) * | 1988-10-12 | 1990-08-31 | Hoechst Celanese Corp | Method for improving color of polyarylate by using cobalt salt |
| RU2495134C2 (en) * | 2011-10-13 | 2013-10-10 | Открытое акционерное общество "КАМАЗ" | Method for obtaining nanostructured recarburising agent for out-of-furnace treatment of high-strength cast-iron with ball-shaped and compacted graphite |
| KR20210079354A (en) | 2018-12-07 | 2021-06-29 | 닛폰세이테츠 가부시키가이샤 | Gatan materials and methods using the same |
-
1978
- 1978-09-13 JP JP11270378A patent/JPS6043888B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02218718A (en) * | 1988-10-12 | 1990-08-31 | Hoechst Celanese Corp | Method for improving color of polyarylate by using cobalt salt |
| RU2495134C2 (en) * | 2011-10-13 | 2013-10-10 | Открытое акционерное общество "КАМАЗ" | Method for obtaining nanostructured recarburising agent for out-of-furnace treatment of high-strength cast-iron with ball-shaped and compacted graphite |
| KR20210079354A (en) | 2018-12-07 | 2021-06-29 | 닛폰세이테츠 가부시키가이샤 | Gatan materials and methods using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6043888B2 (en) | 1985-10-01 |
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