JPS57149419A - Antioxidant agent - Google Patents
Antioxidant agentInfo
- Publication number
- JPS57149419A JPS57149419A JP3275681A JP3275681A JPS57149419A JP S57149419 A JPS57149419 A JP S57149419A JP 3275681 A JP3275681 A JP 3275681A JP 3275681 A JP3275681 A JP 3275681A JP S57149419 A JPS57149419 A JP S57149419A
- Authority
- JP
- Japan
- Prior art keywords
- al2o3
- sio2
- cao
- point
- antioxidant agent
- 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
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/72—Temporary coatings or embedding materials applied before or during heat treatment during chemical change of surfaces
Abstract
PURPOSE:To raise the effect of an antioxidant agent as well as reduce the cost of the antioxidant agent obtained by a method in which SiO2 and Al2O3 are added to blast furnace slag so that the proportions of CaO, Al2O3, and SiO2 are within a specific range, and then the grain size of the mixed powder is adjusted. CONSTITUTION:An antioxidant agent is obtained by adding SiO2 and Al2O3 to blast furnace slag so that the proportions of CaO, Al2O3, and SiO2 are within the range connecting by straight lines the point A1(35%CaO, 40%SiO2, and 25% Al2O3), the point B1(22%CaO, 60% SiO2, and 18%Al2O3), the point C1(10%CaO, 60% SiO2, and 30%Al2O3), and the point D1(20%CaO, 40%SiO2, and 40%Al2O3), or within the range connecting by straight lines the points A2, B2, C2, and D2. And so, the grain size of the mixed powder is adjusted in such a way that the grain size is smaller than 60 mesh and the amount of particles smaller than 200 mesh is 80% or less of the whole. (% means wt%)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3275681A JPS6026804B2 (en) | 1981-03-06 | 1981-03-06 | Antioxidant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3275681A JPS6026804B2 (en) | 1981-03-06 | 1981-03-06 | Antioxidant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57149419A true JPS57149419A (en) | 1982-09-16 |
| JPS6026804B2 JPS6026804B2 (en) | 1985-06-26 |
Family
ID=12367681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3275681A Expired JPS6026804B2 (en) | 1981-03-06 | 1981-03-06 | Antioxidant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6026804B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4098756A4 (en) * | 2020-01-31 | 2023-11-15 | Nippon Steel Corporation | Antioxidant for use in heating of alloy material, and method for heating alloy material using same |
-
1981
- 1981-03-06 JP JP3275681A patent/JPS6026804B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4098756A4 (en) * | 2020-01-31 | 2023-11-15 | Nippon Steel Corporation | Antioxidant for use in heating of alloy material, and method for heating alloy material using same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6026804B2 (en) | 1985-06-26 |
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