JPS5782431A - Production of high tension wire rod - Google Patents
Production of high tension wire rodInfo
- Publication number
- JPS5782431A JPS5782431A JP15727580A JP15727580A JPS5782431A JP S5782431 A JPS5782431 A JP S5782431A JP 15727580 A JP15727580 A JP 15727580A JP 15727580 A JP15727580 A JP 15727580A JP S5782431 A JPS5782431 A JP S5782431A
- Authority
- JP
- Japan
- Prior art keywords
- finish rolling
- wire rod
- high tension
- tension wire
- rolled
- 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)
- Metal Rolling (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE:To produce a high tension wire rod of superior relaxation characteristics with good efficiency at a low cost by subjecting a material to be rolled to precision finish rolling with finish rolling mill groups then to cooling at rates above the critical cooling rate to have martensite structure followed by tempering and warm working. CONSTITUTION:A material to be rolled is subjected to precision rolling with at least finish rolling mill groups within the range of <=0.1mm. diametral tolerance and <=+ or -0.1mm. dimensional accuracy. After the precision finish rolling, it is cooled at the rates above the critical cooling rate for the material to be rolled to turn the structure to martensite. Thence, it is subjected to tempering and warm working processes continuously. In this way, the high tension wire rod of high relaxation characteristics contg. <=0.4 carbon is produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15727580A JPS5782431A (en) | 1980-11-08 | 1980-11-08 | Production of high tension wire rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15727580A JPS5782431A (en) | 1980-11-08 | 1980-11-08 | Production of high tension wire rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5782431A true JPS5782431A (en) | 1982-05-22 |
| JPH0146566B2 JPH0146566B2 (en) | 1989-10-09 |
Family
ID=15646086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15727580A Granted JPS5782431A (en) | 1980-11-08 | 1980-11-08 | Production of high tension wire rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5782431A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57198211A (en) * | 1981-05-29 | 1982-12-04 | Sumitomo Electric Ind Ltd | Manufacture of heat treat pc steel rod |
| JPS63151720A (en) * | 1986-12-11 | 1988-06-24 | 川鉄テクノワイヤ株式会社 | High strength pc steel rod and high strength pile |
| JPH06248642A (en) * | 1991-08-09 | 1994-09-06 | Kawatetsu Techno Wire Kk | High-strength pile |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54143716A (en) * | 1978-04-28 | 1979-11-09 | Sumitomo Metal Ind Ltd | Manufacture of directly heat treated wire rod |
| JPS55107734A (en) * | 1979-02-14 | 1980-08-19 | Sumitomo Metal Ind Ltd | Manufacture of high tensile steel wire rod |
| JPS55119134A (en) * | 1979-03-07 | 1980-09-12 | Sumitomo Metal Ind Ltd | Manufacture of high tensile steel wire rod |
-
1980
- 1980-11-08 JP JP15727580A patent/JPS5782431A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54143716A (en) * | 1978-04-28 | 1979-11-09 | Sumitomo Metal Ind Ltd | Manufacture of directly heat treated wire rod |
| JPS55107734A (en) * | 1979-02-14 | 1980-08-19 | Sumitomo Metal Ind Ltd | Manufacture of high tensile steel wire rod |
| JPS55119134A (en) * | 1979-03-07 | 1980-09-12 | Sumitomo Metal Ind Ltd | Manufacture of high tensile steel wire rod |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57198211A (en) * | 1981-05-29 | 1982-12-04 | Sumitomo Electric Ind Ltd | Manufacture of heat treat pc steel rod |
| JPS63151720A (en) * | 1986-12-11 | 1988-06-24 | 川鉄テクノワイヤ株式会社 | High strength pc steel rod and high strength pile |
| JPH0541684B2 (en) * | 1986-12-11 | 1993-06-24 | Kawatetsu Techno Wire Kk | |
| JPH06248642A (en) * | 1991-08-09 | 1994-09-06 | Kawatetsu Techno Wire Kk | High-strength pile |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0146566B2 (en) | 1989-10-09 |
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