JPS5770043A - Method for manufacture tapered coiled spring - Google Patents
Method for manufacture tapered coiled springInfo
- Publication number
- JPS5770043A JPS5770043A JP14643580A JP14643580A JPS5770043A JP S5770043 A JPS5770043 A JP S5770043A JP 14643580 A JP14643580 A JP 14643580A JP 14643580 A JP14643580 A JP 14643580A JP S5770043 A JPS5770043 A JP S5770043A
- Authority
- JP
- Japan
- Prior art keywords
- crude material
- heating
- tempering
- heated
- shape under
- 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
- Wire Processing (AREA)
Abstract
PURPOSE: To reduce energy consumptions and to improve qualities of the product, by forming crude materials for making spring to have a tapered shape under a condition where the crude material is heated to a prescribed temperature, and then, by forming the crude material to have a coiled shape under a cold condition after the crude material is treated by quenching and tempering without heating the crude material again.
CONSTITUTION: In a heating process a crude material for making spring is heated to a prescribed temperature, and the heated crude material is formed to become linear or non-linear coiled conditions in a taper working process. Then, the crude material is subjected to a quenching treatment without heating the crude material again in a succeeding quenching process. The quenched crude material is treated by tempering in a tempering process, and then, the crude material is formed to have a desired coiled shape under a cold condition in a coiling process. In this way, heating processes are reduced in number and, as the result of this arrangement, the energy consumption is reduced. Moreover, qualities of the product and productivity are improved.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14643580A JPS5770043A (en) | 1980-10-20 | 1980-10-20 | Method for manufacture tapered coiled spring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14643580A JPS5770043A (en) | 1980-10-20 | 1980-10-20 | Method for manufacture tapered coiled spring |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5770043A true JPS5770043A (en) | 1982-04-30 |
Family
ID=15407594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14643580A Pending JPS5770043A (en) | 1980-10-20 | 1980-10-20 | Method for manufacture tapered coiled spring |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5770043A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002038817A1 (en) * | 2000-11-10 | 2002-05-16 | Neturen Co., Ltd. | Double-taper steel wire and continuous heat treating method and device therefor |
-
1980
- 1980-10-20 JP JP14643580A patent/JPS5770043A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002038817A1 (en) * | 2000-11-10 | 2002-05-16 | Neturen Co., Ltd. | Double-taper steel wire and continuous heat treating method and device therefor |
US7011720B2 (en) | 2000-11-10 | 2006-03-14 | Neturen Co., Ltd. | Double-taper steel wire and continuous heat treating method and device therefor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS56123327A (en) | Production of highly formable ferritic stainless steel sheet of good surface characteristic | |
ES8304211A1 (en) | Process for the improved heat treatment of steels using direct electrical resistance heating | |
JPS5723026A (en) | Spheroidization treatment for bar steel material | |
JPS5770043A (en) | Method for manufacture tapered coiled spring | |
JPS5614044A (en) | Production of hardened piston ring made of steel | |
JPS55100934A (en) | Production of high tensile cold rolled steel plate excellent in drawing and shaping property | |
JPS5770042A (en) | Method for manufacturing barrel-shaped tapered coiled spring | |
JPS56102519A (en) | Cold rolling method for stainless steel of high strength | |
JPS55100922A (en) | Production of thick steel plate with high toughness | |
JPS5757835A (en) | Production of steel plate for can making | |
JPS56152921A (en) | Hot formed spring and its production | |
JPS5719325A (en) | Production of steel product | |
JPS5655520A (en) | Production of surface decarbonized high carbon steel strip | |
JPS5721234A (en) | Production of hardened steel piston ring | |
JPS5723020A (en) | Rolling of ferrite-based stainless steel wire | |
JPS54112364A (en) | Roll for sendzimir mill and its heat treating method | |
JPS57155325A (en) | Production of seamless steel pipe | |
JPS55152182A (en) | Steam treatment of iron based product | |
JPS5452613A (en) | Wire rod directly heat treated with rolling heat | |
JPS55100925A (en) | Production of cold rolled steel plate by heat treatment for a short time | |
JPS5782467A (en) | Manufacture of heat treated plated steel strip | |
JPS55125228A (en) | Method and apparatus of continuous annealing of steel strip | |
ES312228A1 (en) | Improvements in or relating to torsion springs | |
GB960174A (en) | Improvements in the production of hard steel particles | |
JPS5716120A (en) | Manufacture of high-strength and high-yield ratio type hot-rolled high tensile steel plate |