JPS6149024B2 - - Google Patents
Info
- Publication number
- JPS6149024B2 JPS6149024B2 JP1707781A JP1707781A JPS6149024B2 JP S6149024 B2 JPS6149024 B2 JP S6149024B2 JP 1707781 A JP1707781 A JP 1707781A JP 1707781 A JP1707781 A JP 1707781A JP S6149024 B2 JPS6149024 B2 JP S6149024B2
- Authority
- JP
- Japan
- Prior art keywords
- steel
- less
- content
- corrected
- rate
- 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.)
- Expired
Links
- 239000010955 niobium Substances 0.000 claims description 105
- 229910000831 Steel Inorganic materials 0.000 claims description 61
- 239000010959 steel Substances 0.000 claims description 61
- 229910052758 niobium Inorganic materials 0.000 claims description 26
- 238000001816 cooling Methods 0.000 claims description 20
- 238000005204 segregation Methods 0.000 claims description 19
- 229910052799 carbon Inorganic materials 0.000 claims description 17
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims description 9
- 229910052717 sulfur Inorganic materials 0.000 claims description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 229910052720 vanadium Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 238000007711 solidification Methods 0.000 description 14
- 230000008023 solidification Effects 0.000 description 14
- 239000000463 material Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 8
- 238000002425 crystallisation Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Steel (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1707781A JPS57130759A (en) | 1981-02-07 | 1981-02-07 | Production of niobium-containing strong and tough steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1707781A JPS57130759A (en) | 1981-02-07 | 1981-02-07 | Production of niobium-containing strong and tough steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57130759A JPS57130759A (en) | 1982-08-13 |
| JPS6149024B2 true JPS6149024B2 (enrdf_load_stackoverflow) | 1986-10-27 |
Family
ID=11933908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1707781A Granted JPS57130759A (en) | 1981-02-07 | 1981-02-07 | Production of niobium-containing strong and tough steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57130759A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6346626U (enrdf_load_stackoverflow) * | 1986-09-11 | 1988-03-29 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0186512B1 (en) * | 1984-12-28 | 1990-08-08 | Nippon Steel Corporation | Method for controlling solidification segregation of steel |
-
1981
- 1981-02-07 JP JP1707781A patent/JPS57130759A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6346626U (enrdf_load_stackoverflow) * | 1986-09-11 | 1988-03-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57130759A (en) | 1982-08-13 |
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