JPS56114504A - Method and apparatus for continuously manufacturing heat treated tapered wire rod - Google Patents

Method and apparatus for continuously manufacturing heat treated tapered wire rod

Info

Publication number
JPS56114504A
JPS56114504A JP1663880A JP1663880A JPS56114504A JP S56114504 A JPS56114504 A JP S56114504A JP 1663880 A JP1663880 A JP 1663880A JP 1663880 A JP1663880 A JP 1663880A JP S56114504 A JPS56114504 A JP S56114504A
Authority
JP
Japan
Prior art keywords
rod
wire rod
induction heating
roll
rolls
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
Application number
JP1663880A
Other languages
Japanese (ja)
Inventor
Kazuhiro Kawasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Neturen Co Ltd
Koshuha Netsuren KK
Original Assignee
Neturen Co Ltd
Koshuha Netsuren KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Neturen Co Ltd, Koshuha Netsuren KK filed Critical Neturen Co Ltd
Priority to JP1663880A priority Critical patent/JPS56114504A/en
Publication of JPS56114504A publication Critical patent/JPS56114504A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/007—Taper rolling, e.g. leaf springs

Abstract

PURPOSE:To high efficiently, continuously manufacture a tapered wire rod with excellent strength and buckling-resistivity, by passing a round steel wire rod, heated to hardening temperatures by the electric induction heating, through the gap of cross rolls possible to repeatedly changed its rolling force, and then, by applying a heat treatment to this rod. CONSTITUTION:The round steel wire rod 1, held in the payoff stand 2, is uncoiled by pinch rolls 3a, 3b and is straightened by the rod straightening roll 4. The rod 1 is next sent into the induction heating coil 5 by the tension of the pinch roll 10, is heated to hardening temperatures, and is passed through the cross roll 6 while holding its temperature. The rod 1, in the cross roll 6, receives the rolling force from a couple of rolls depending on the centrifugal force caused by the change of revolving speed of the rotary ring, and is plastically worked and formed into a rod provided with diameters changed repeatedly from large to small and from small to large. Then, the rod 1 is quenched by the quencher 7 and is hardened over all its section; thereafter, the rod 1 is passed through the induction heating coil 8 for tempering and next the cooler 9; finally, the rod is coiled by the stand 11.
JP1663880A 1980-02-15 1980-02-15 Method and apparatus for continuously manufacturing heat treated tapered wire rod Pending JPS56114504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1663880A JPS56114504A (en) 1980-02-15 1980-02-15 Method and apparatus for continuously manufacturing heat treated tapered wire rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1663880A JPS56114504A (en) 1980-02-15 1980-02-15 Method and apparatus for continuously manufacturing heat treated tapered wire rod

Publications (1)

Publication Number Publication Date
JPS56114504A true JPS56114504A (en) 1981-09-09

Family

ID=11921895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1663880A Pending JPS56114504A (en) 1980-02-15 1980-02-15 Method and apparatus for continuously manufacturing heat treated tapered wire rod

Country Status (1)

Country Link
JP (1) JPS56114504A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0904860A2 (en) * 1997-09-30 1999-03-31 Firma Muhr und Bender Method and installation for manufacturing biconical wire
EP2157194A1 (en) * 2008-08-02 2010-02-24 GMT-Gesellschaft für Metallurgische Technologie- und Softwareentwicklung mbH Method and assembly for inline reforming, treatment and alignment of rod-shaped metal parts
EP2282855A4 (en) * 2009-05-19 2016-10-12 Dae Won Kang Up Co Ltd Method of manufacturing coil spring using helicoid reduction mill

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539257A (en) * 1976-07-14 1978-01-27 Akira Ozawa Planet rolling mill

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539257A (en) * 1976-07-14 1978-01-27 Akira Ozawa Planet rolling mill

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0904860A2 (en) * 1997-09-30 1999-03-31 Firma Muhr und Bender Method and installation for manufacturing biconical wire
EP0904860A3 (en) * 1997-09-30 2000-07-05 Firma Muhr und Bender Method and installation for manufacturing biconical wire
EP2157194A1 (en) * 2008-08-02 2010-02-24 GMT-Gesellschaft für Metallurgische Technologie- und Softwareentwicklung mbH Method and assembly for inline reforming, treatment and alignment of rod-shaped metal parts
EP2282855A4 (en) * 2009-05-19 2016-10-12 Dae Won Kang Up Co Ltd Method of manufacturing coil spring using helicoid reduction mill

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