JPS57116727A - Production of high carbon alloy steel wire rod - Google Patents
Production of high carbon alloy steel wire rodInfo
- Publication number
- JPS57116727A JPS57116727A JP368881A JP368881A JPS57116727A JP S57116727 A JPS57116727 A JP S57116727A JP 368881 A JP368881 A JP 368881A JP 368881 A JP368881 A JP 368881A JP S57116727 A JPS57116727 A JP S57116727A
- Authority
- JP
- Japan
- Prior art keywords
- wire rod
- slab
- temp
- finish rolling
- steel wire
- 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
Abstract
PURPOSE: To produce a high carbon alloy steel wire rod having uniform fine pearlite structure by subjecting a slab to hot rolling, finish rolling, coiling and slow cooling under specific temp. conditions.
CONSTITUTION: First, hot rolling of a slab is started by controlling its heating temp. to below 950°C. In the intermediate stage before finish rolling, the slab is forcibly cooled with water to control its temp. to below 950°C, thence it is subjected to finish rolling. Thence, it is forcibly cooled and coiled at 600W750°C, after which it is slowly cooled at ≤1°C/sec cooling rates during the process of cooling and conveying. Thereby, it is made into the uniformly fine pearlite structure in an as rolled state and green drawing is made possible without application of a reheating treatment such as softening and annealing; in addition, the wire rod of the sound surface state free from any scale crack flaws is obtained at that time.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP368881A JPS601930B2 (en) | 1981-01-13 | 1981-01-13 | Manufacturing method of high carbon alloy steel wire rod |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP368881A JPS601930B2 (en) | 1981-01-13 | 1981-01-13 | Manufacturing method of high carbon alloy steel wire rod |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57116727A true JPS57116727A (en) | 1982-07-20 |
JPS601930B2 JPS601930B2 (en) | 1985-01-18 |
Family
ID=11564334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP368881A Expired JPS601930B2 (en) | 1981-01-13 | 1981-01-13 | Manufacturing method of high carbon alloy steel wire rod |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS601930B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4604145A (en) * | 1984-01-13 | 1986-08-05 | Sumitomo Metal Industries, Ltd. | Process for production of steel bar or steel wire having an improved spheroidal structure of cementite |
JPH0379719A (en) * | 1989-08-19 | 1991-04-04 | Kobe Steel Ltd | Manufacture of si-cr series spring wire rod having excellent wire drawability |
US6372056B1 (en) | 1998-12-21 | 2002-04-16 | Kobe Steel Ltd. | Spring steel superior in workability |
KR100368224B1 (en) * | 1998-10-13 | 2003-03-17 | 주식회사 포스코 | Manufacturing method of high strength steel for wire rod and wire rod with excellent freshness |
-
1981
- 1981-01-13 JP JP368881A patent/JPS601930B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4604145A (en) * | 1984-01-13 | 1986-08-05 | Sumitomo Metal Industries, Ltd. | Process for production of steel bar or steel wire having an improved spheroidal structure of cementite |
JPH0379719A (en) * | 1989-08-19 | 1991-04-04 | Kobe Steel Ltd | Manufacture of si-cr series spring wire rod having excellent wire drawability |
KR100368224B1 (en) * | 1998-10-13 | 2003-03-17 | 주식회사 포스코 | Manufacturing method of high strength steel for wire rod and wire rod with excellent freshness |
US6372056B1 (en) | 1998-12-21 | 2002-04-16 | Kobe Steel Ltd. | Spring steel superior in workability |
Also Published As
Publication number | Publication date |
---|---|
JPS601930B2 (en) | 1985-01-18 |
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