JPS5739002A - Manufacture of hot rolled wire rod of low carbon killed steel having long service life of die in cold forging - Google Patents
Manufacture of hot rolled wire rod of low carbon killed steel having long service life of die in cold forgingInfo
- Publication number
- JPS5739002A JPS5739002A JP11408480A JP11408480A JPS5739002A JP S5739002 A JPS5739002 A JP S5739002A JP 11408480 A JP11408480 A JP 11408480A JP 11408480 A JP11408480 A JP 11408480A JP S5739002 A JPS5739002 A JP S5739002A
- Authority
- JP
- Japan
- Prior art keywords
- killed steel
- service life
- wire rod
- die
- billet
- 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
- Metal Rolling (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE: To manufacture a hot rolled wire rod of a low-carbon killed steel, which gives a long service life to a cold forging die, by rolling a billet of a low-carbon killed steel characterized with a prescribed Al/N ratio, at limited heateing and rollling temperatures.
CONSTITUTION: A low-carbon killed steel billet consisting of ≤0.25% C, ≤0.30% Si, 0.30W0.60% Mn, ≤0.05% P plus S, ≤0.008% N, ≤0.08% acid soluble Al, Al/N≥1.0, and the balance comprising inevitable impurities plus Fe is prepared. This billet is rolled to a wire rod at rolling temperatures ≥Ar1 point (650W680°C) and ≤Ar3 point (780W860°C), after heating to 850W950°C. By the present method, Al/N of the billet almost perfectly precipitates in a ferrite-austenite eutectic region on the way of the rolling process. The rod obtained by the present method displays an effect of improving the service life of a die for serving a severe cold working process, even if the annealing process is omitted.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11408480A JPS5739002A (en) | 1980-08-21 | 1980-08-21 | Manufacture of hot rolled wire rod of low carbon killed steel having long service life of die in cold forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11408480A JPS5739002A (en) | 1980-08-21 | 1980-08-21 | Manufacture of hot rolled wire rod of low carbon killed steel having long service life of die in cold forging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5739002A true JPS5739002A (en) | 1982-03-04 |
Family
ID=14628666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11408480A Pending JPS5739002A (en) | 1980-08-21 | 1980-08-21 | Manufacture of hot rolled wire rod of low carbon killed steel having long service life of die in cold forging |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5739002A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60121220A (en) * | 1983-12-02 | 1985-06-28 | Kobe Steel Ltd | Production of hot rolled steel wire rod and bar having excellent cold forgeability |
| JPS63199819A (en) * | 1987-02-13 | 1988-08-18 | Kobe Steel Ltd | Manufacture of fine-grained steel |
| CN104561489A (en) * | 2014-12-26 | 2015-04-29 | 西安交通大学 | Process for preparing semisolid steel blank by using radial forging strain induction method |
| CN104759469A (en) * | 2015-03-31 | 2015-07-08 | 邢台钢铁有限责任公司 | Production method for non-annealed medium carbon cold heading steel hot-rolled wire rod |
| CN105414173A (en) * | 2014-09-15 | 2016-03-23 | 中国人民解放军军械工程学院 | Irregular-shaped steel wire hot rolling equipment |
-
1980
- 1980-08-21 JP JP11408480A patent/JPS5739002A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60121220A (en) * | 1983-12-02 | 1985-06-28 | Kobe Steel Ltd | Production of hot rolled steel wire rod and bar having excellent cold forgeability |
| JPS6135249B2 (en) * | 1983-12-02 | 1986-08-12 | Kobe Steel Ltd | |
| JPS63199819A (en) * | 1987-02-13 | 1988-08-18 | Kobe Steel Ltd | Manufacture of fine-grained steel |
| CN105414173A (en) * | 2014-09-15 | 2016-03-23 | 中国人民解放军军械工程学院 | Irregular-shaped steel wire hot rolling equipment |
| CN104561489A (en) * | 2014-12-26 | 2015-04-29 | 西安交通大学 | Process for preparing semisolid steel blank by using radial forging strain induction method |
| CN104561489B (en) * | 2014-12-26 | 2016-10-12 | 西安交通大学 | The technique that a kind of radial forging strain-induced method prepares iron and steel semi-solid blank |
| CN104759469A (en) * | 2015-03-31 | 2015-07-08 | 邢台钢铁有限责任公司 | Production method for non-annealed medium carbon cold heading steel hot-rolled wire rod |
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