JPS5789425A - Manufacture of steel for carburizing - Google Patents
Manufacture of steel for carburizingInfo
- Publication number
- JPS5789425A JPS5789425A JP16268180A JP16268180A JPS5789425A JP S5789425 A JPS5789425 A JP S5789425A JP 16268180 A JP16268180 A JP 16268180A JP 16268180 A JP16268180 A JP 16268180A JP S5789425 A JPS5789425 A JP S5789425A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- manufacture
- steel strips
- strips
- rolling
- 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.)
- Pending
Links
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE: To prevent the coarsening of austenite crystal grains during the carburizing and heating period by designating the average cooling speed and blooming, rolling and heating temperature of a steel strip to specific value in the manufacture of the steel strip from molten steel containing specific proportions of Al and N.
CONSTITUTION: When manufacturing cast steel strips from molten steel containing 0.010W0.060wt% Al and 0.005W0.020wt% N, an average cooling rate for the cast steel strips is designated to 0.2°C/sec or more. Then, during a blooming rolling process to manufacture steel strips from the cast steel strips, a rolling and heating temperature is designated to 1,200W1,350°C. Furthermore, the steel strips are heated to 950W1,100°C and rolled to obtain rolled steel products. As needed, a small amount of one or two or more of Ni, Cr, Mo, and Mn, or of Nb, Ti, Zr, V, and Ta may be added to the steel material.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16268180A JPS5789425A (en) | 1980-11-20 | 1980-11-20 | Manufacture of steel for carburizing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16268180A JPS5789425A (en) | 1980-11-20 | 1980-11-20 | Manufacture of steel for carburizing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5789425A true JPS5789425A (en) | 1982-06-03 |
Family
ID=15759266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16268180A Pending JPS5789425A (en) | 1980-11-20 | 1980-11-20 | Manufacture of steel for carburizing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5789425A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63157816A (en) * | 1986-12-22 | 1988-06-30 | Kawasaki Steel Corp | Manufacture of carburizing steel material |
JPH0673445A (en) * | 1992-08-27 | 1994-03-15 | Kobe Steel Ltd | Manufacture of steel material having little surface flaw |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4871319A (en) * | 1971-12-28 | 1973-09-27 | ||
JPS5187431A (en) * | 1975-01-31 | 1976-07-31 | Kawasaki Steel Co | Hyomenwarenonai haganechuhennorenzokuchuzonyoruseizohoho |
JPS556456A (en) * | 1978-06-29 | 1980-01-17 | Daido Steel Co Ltd | Blank for surface hardened material having less heat treatment strain |
-
1980
- 1980-11-20 JP JP16268180A patent/JPS5789425A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4871319A (en) * | 1971-12-28 | 1973-09-27 | ||
JPS5187431A (en) * | 1975-01-31 | 1976-07-31 | Kawasaki Steel Co | Hyomenwarenonai haganechuhennorenzokuchuzonyoruseizohoho |
JPS556456A (en) * | 1978-06-29 | 1980-01-17 | Daido Steel Co Ltd | Blank for surface hardened material having less heat treatment strain |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63157816A (en) * | 1986-12-22 | 1988-06-30 | Kawasaki Steel Corp | Manufacture of carburizing steel material |
JPH0572442B2 (en) * | 1986-12-22 | 1993-10-12 | Kawasaki Steel Co | |
JPH0673445A (en) * | 1992-08-27 | 1994-03-15 | Kobe Steel Ltd | Manufacture of steel material having little surface flaw |
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