JPS56163222A - High strength high toughness and direct heat treated steel wire material having superior drawability and descaling property - Google Patents
High strength high toughness and direct heat treated steel wire material having superior drawability and descaling propertyInfo
- Publication number
- JPS56163222A JPS56163222A JP6596680A JP6596680A JPS56163222A JP S56163222 A JPS56163222 A JP S56163222A JP 6596680 A JP6596680 A JP 6596680A JP 6596680 A JP6596680 A JP 6596680A JP S56163222 A JPS56163222 A JP S56163222A
- Authority
- JP
- Japan
- Prior art keywords
- wire material
- temp
- steel wire
- cooling
- descaling
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE:To obtain a wire material which is provided with high strength, and high toughness and permits easy descaling by forcedly cooling the same after hot rolling and holding the same at the specified temp. for a required time, thence quick cooling it by controlled cooling. CONSTITUTION:A steel wire material is cooled to about <=800 deg.C for chemical descaling and to about 850 deg.C for mechanical descaling by forced-water cooling up to pinch rollers after ending of finish rolling, and immediately it is forcedly cooled down to the temp. right above Ar1. It is held for a required time at this temp., and from just above Ar1, it is quickly cooled down to the nose of an S curve, and after it is maintained at about 520-580 deg.C, it is immediately cooled by warm water or water, whereby the wire temp. is lowered down to about <=200 deg.C. Then, the steel wire material forms the scale consisting of thin oxide layers rich with FeO, of which the metallic structure is essentially fine pearlite, and fine initially deposited ferrite disperses therein, thus it has the quality equivalent to that of ordinary lead patenting wire materials and is also superior in drawability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6596680A JPS6056212B2 (en) | 1980-05-20 | 1980-05-20 | High-strength, high-toughness direct heat-treated steel wire with excellent wire drawability and descalability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6596680A JPS6056212B2 (en) | 1980-05-20 | 1980-05-20 | High-strength, high-toughness direct heat-treated steel wire with excellent wire drawability and descalability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56163222A true JPS56163222A (en) | 1981-12-15 |
| JPS6056212B2 JPS6056212B2 (en) | 1985-12-09 |
Family
ID=13302237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6596680A Expired JPS6056212B2 (en) | 1980-05-20 | 1980-05-20 | High-strength, high-toughness direct heat-treated steel wire with excellent wire drawability and descalability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6056212B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112646957A (en) * | 2020-12-01 | 2021-04-13 | 中国科学院金属研究所 | Pretreatment method for improving lead and bismuth corrosion resistance of ferrite-martensite steel |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS637973U (en) * | 1986-07-02 | 1988-01-19 |
-
1980
- 1980-05-20 JP JP6596680A patent/JPS6056212B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112646957A (en) * | 2020-12-01 | 2021-04-13 | 中国科学院金属研究所 | Pretreatment method for improving lead and bismuth corrosion resistance of ferrite-martensite steel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6056212B2 (en) | 1985-12-09 |
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