JPS56158202A - Manufacture of deformed rod - Google Patents

Manufacture of deformed rod

Info

Publication number
JPS56158202A
JPS56158202A JP6196480A JP6196480A JPS56158202A JP S56158202 A JPS56158202 A JP S56158202A JP 6196480 A JP6196480 A JP 6196480A JP 6196480 A JP6196480 A JP 6196480A JP S56158202 A JPS56158202 A JP S56158202A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
roll
forming
wire rod
section
rod
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
JP6196480A
Other versions
JPH0126761B2 (en )
Inventor
Shinichi Fukazawa
Shiro Tsuyuki
Original Assignee
Tanaka Kikinzoku Kogyo 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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/16Metal-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
    • B21B1/166Rolling wire into sections or flat ribbons

Abstract

PURPOSE:To exactly manufacture a deformed rod with a prescribed bisymmetrical section shape, by forming a wire rod having a round section into a bisymmetrical shape having a vertical angle, and by applying a rolling work to the vertex of this vertical angle. CONSTITUTION:A base metal made wire rod 4 having a round section is rolled by a roll-forming roll into a wire rod 4'' of an equilateral triangular section. The vertex C of the bilateral triangular section of the wire rod 4'' is then inserted into a projection-forming groove 7 of a roll-forming roll 8 on the lower side, and the wire rod 4'' is subjected to a roll-forming work performed by the lower roll-forming roll 8 and an upper rolling roll 6 provided with a forming groove 5. Hereby, a base rod 3, with a trapezoid section provided with a longitudinal projection 1 in the middle of a surface to be welded to a spring material, is obtained. By the present method, the vertexes C, D, E of the wire rod 4'' are respectively firmly held by the forming grooves 5, 7 during the roll-forming work, so that the wire rod 4'' does not incline and is exactly and easily formed into a deformed rod of a prescribed bisymmetrical section shape.
JP6196480A 1980-05-10 1980-05-10 Expired JPH0126761B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6196480A JPH0126761B2 (en) 1980-05-10 1980-05-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6196480A JPH0126761B2 (en) 1980-05-10 1980-05-10

Publications (2)

Publication Number Publication Date
JPS56158202A true true JPS56158202A (en) 1981-12-05
JPH0126761B2 JPH0126761B2 (en) 1989-05-25

Family

ID=13186366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6196480A Expired JPH0126761B2 (en) 1980-05-10 1980-05-10

Country Status (1)

Country Link
JP (1) JPH0126761B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001001743A1 (en) * 1999-06-24 2001-01-04 Nokia Corporation A protecting device against interfering electromagnetic radiation comprising emi-gaskets
US6608251B1 (en) 1999-06-24 2003-08-19 Nokia Corporation Protecting device against interfering electromagnetic radiation comprising EMI-gaskets
US6639145B1 (en) 1999-06-24 2003-10-28 Nokia Corporation Protecting device against interfering electromagnetic radiation comprising EMI gaskets
US6714423B1 (en) 1999-06-24 2004-03-30 Nokia Corporation Protecting device against electromagnetic radiation comprising EMI-gaskets
WO2007072312A1 (en) * 2005-12-23 2007-06-28 Philips Intellectual Property & Standards Gmbh Method for manufacturing a double tube discharge lamp

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548104U (en) * 1977-06-20 1979-01-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548104U (en) * 1977-06-20 1979-01-19

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001001743A1 (en) * 1999-06-24 2001-01-04 Nokia Corporation A protecting device against interfering electromagnetic radiation comprising emi-gaskets
US6608251B1 (en) 1999-06-24 2003-08-19 Nokia Corporation Protecting device against interfering electromagnetic radiation comprising EMI-gaskets
US6639145B1 (en) 1999-06-24 2003-10-28 Nokia Corporation Protecting device against interfering electromagnetic radiation comprising EMI gaskets
US6696639B1 (en) 1999-06-24 2004-02-24 Nokia Corporation Protecting device against interfering electromagnetic radiation comprising EMI-gaskets
US6714423B1 (en) 1999-06-24 2004-03-30 Nokia Corporation Protecting device against electromagnetic radiation comprising EMI-gaskets
WO2007072312A1 (en) * 2005-12-23 2007-06-28 Philips Intellectual Property & Standards Gmbh Method for manufacturing a double tube discharge lamp
JP2009521088A (en) * 2005-12-23 2009-05-28 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Method of manufacturing a double tube discharge lamp
US8262428B2 (en) 2005-12-23 2012-09-11 Koninklijke Philips Electronics N.V. Method for manufacturing a double tube discharge lamp

Also Published As

Publication number Publication date Type
JPH0126761B2 (en) 1989-05-25 grant

Similar Documents

Publication Publication Date Title
US3909293A (en) Method of manufacturing battery plate grids
US3494164A (en) Process for producing a reinforcing rod for concrete
DE3343709A1 (en) Process for shaping a frame part
US1959756A (en) Columnar structure
US4708897A (en) Composite product having a tubular metal casing with a welt-type seam, and a core in powder form, which can be rolled up
US3023487A (en) Method for producing roller assemblies
JPS5832529A (en) Manufacture of multipurpose expanded metallic material
DE2529466A1 (en) Production of welded tube with various dimensions - has roll assemblies to bend flat sheet to produce pipe ready for welding
US2846056A (en) Drawing dies
US2788831A (en) Apparatus for straightening metallic vehicle bumpers
US3354682A (en) Apparatus for forming metal tubes to the shape of a frustum of a pyramid
US2822850A (en) Method of forming welding projections on a standard nut blank and article so formed
JPS56148405A (en) Rolling mill
US3831423A (en) Method of making golf ball molds
JPS5964103A (en) Hot rolling method
JPS5853329A (en) Manufacture of one-seam t-pipe joint
JPS61262404A (en) Hot rolling method for wide flange beam
JPS55153622A (en) Straightener for shape of strip
FR2374978A1 (en) Hollow metal toy ball mfr. - includes welding hemispheres with surface patterns and edges rectified after welding
JPS6277144A (en) Formation of engaging recessed part for lathe dog
GB778422A (en) Manufacture of steel or other metal tubes
JPS57175005A (en) Cold rolling method in multistages rolling mill
DE2448158A1 (en) Reducing mill rolls having grooves provided with domed sides - to prevent polygonal bores in rolled tubes or pipes
JPS6186036A (en) Flattening work method of pipe end and it's die
JPS56136202A (en) Method and apparatus for manufacturing h-beam