JPS56133427A - Manufacture of hollow steel wire - Google Patents
Manufacture of hollow steel wireInfo
- Publication number
- JPS56133427A JPS56133427A JP3659080A JP3659080A JPS56133427A JP S56133427 A JPS56133427 A JP S56133427A JP 3659080 A JP3659080 A JP 3659080A JP 3659080 A JP3659080 A JP 3659080A JP S56133427 A JPS56133427 A JP S56133427A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- continuously
- tape
- steel wire
- drawn
- 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
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)
- Bending Of Plates, Rods, And Pipes (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE:To continuously manufacture a long-sized hollow steel wire for a twisted spring at a low cost by continuously forming a tape of carbon steel or alloy steel followed by drawing and proper heat treatments. CONSTITUTION:Tape 1 made of carbon steel or alloy steel is continuously fed to forming roll 3 from reel 12, formed into pipe shape, and joined by seam welding the butted faces with welding machine 4. The resulting pipe 2 is annealed by heating at 400-700 deg.C for a short time in heating furnace 5. By this annealing the sstructure of the weld zone is converted into a tempered structure with high workability. Pipe 2 is then air cooled and continuously drawn to a prescribed diameter with drawing unit 7 at ordinary or elevated temp. by passing through dies 6 once-several times. Drawn pipe 2 is heated to 800-1,000 deg.C with heater 8 to austenitize the material, and immediately it is passed through vessel 9 filled with a cooling medium such as water or oil to convert the austenite into martensite. It is successively tempered at 200-450 deg.C with tempering unit 10 and coiled with coiler 10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3659080A JPS56133427A (en) | 1980-03-21 | 1980-03-21 | Manufacture of hollow steel wire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3659080A JPS56133427A (en) | 1980-03-21 | 1980-03-21 | Manufacture of hollow steel wire |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56133427A true JPS56133427A (en) | 1981-10-19 |
Family
ID=12473985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3659080A Pending JPS56133427A (en) | 1980-03-21 | 1980-03-21 | Manufacture of hollow steel wire |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56133427A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008238246A (en) * | 2007-03-28 | 2008-10-09 | Nippon Kinzoku Co Ltd | Method of manufacturing pure nickel pipe and pure nickel pipe |
CN113843301A (en) * | 2017-01-17 | 2021-12-28 | 美国法朗姆能源公司 | Method of manufacturing coiled tubing string |
-
1980
- 1980-03-21 JP JP3659080A patent/JPS56133427A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008238246A (en) * | 2007-03-28 | 2008-10-09 | Nippon Kinzoku Co Ltd | Method of manufacturing pure nickel pipe and pure nickel pipe |
CN113843301A (en) * | 2017-01-17 | 2021-12-28 | 美国法朗姆能源公司 | Method of manufacturing coiled tubing string |
US11833561B2 (en) | 2017-01-17 | 2023-12-05 | Forum Us, Inc. | Method of manufacturing a coiled tubing string |
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