GB818833A - Improvements relating to methods of work hardening steel rods and wires - Google Patents

Improvements relating to methods of work hardening steel rods and wires

Info

Publication number
GB818833A
GB818833A GB26856/57A GB2685657A GB818833A GB 818833 A GB818833 A GB 818833A GB 26856/57 A GB26856/57 A GB 26856/57A GB 2685657 A GB2685657 A GB 2685657A GB 818833 A GB818833 A GB 818833A
Authority
GB
United Kingdom
Prior art keywords
wires
rods
projections
rod
steel rods
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.)
Expired
Application number
GB26856/57A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB818833A publication Critical patent/GB818833A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
    • 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
    • B21B1/163—Rolling or cold-forming of concrete reinforcement bars or wire ; Rolls therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
    • C21D7/105—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars of concrete reinforcing bars

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Wire Processing (AREA)

Abstract

818,833. Making reinforcing rods; altering physical structure. HUFNAGL, W. Aug. 26, 1957 [Aug. 27, 1956], No. 26856/57. Drawings to Specification. Classes 83 (2) and 83 (4). A process for the production of high tensile steel rods or wires for reinforcing concrete from steel rods or wires of lower tensile strength is characterized in that the tensile strength of the rods or wires is increased by cold working in two stages, in the first of which the rods, or wires are drawn to reduce their diameter and in the second of which the rods or wires are provided with projections or recesses on their surfaces to increase the bond between the rods or wires and the concrete. In an embodiment reinforcing steel rod or wire for making welded mesh reinforcements is first reduced by 15- 30 per cent of its original cross-section by drawing and then cold rolled to provide a further reduction of 5-15 per cent and to impart transverse rib-like projections to the rod or wire. The height of these projections is approximately 0.05 times the diameter of the finished rod and does not exceed 0.3 mm. and the width of each projection is approximately 1 mm.
GB26856/57A 1956-08-27 1957-08-26 Improvements relating to methods of work hardening steel rods and wires Expired GB818833A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE353756X 1956-08-27

Publications (1)

Publication Number Publication Date
GB818833A true GB818833A (en) 1959-08-26

Family

ID=6284177

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26856/57A Expired GB818833A (en) 1956-08-27 1957-08-26 Improvements relating to methods of work hardening steel rods and wires

Country Status (4)

Country Link
BE (1) BE560340A (en)
CH (1) CH353756A (en)
FR (1) FR1184684A (en)
GB (1) GB818833A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292337A (en) * 1962-11-07 1966-12-20 Dyckerhoff & Widmann Ag Armoring rods for reinforced concrete

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292337A (en) * 1962-11-07 1966-12-20 Dyckerhoff & Widmann Ag Armoring rods for reinforced concrete

Also Published As

Publication number Publication date
FR1184684A (en) 1959-07-24
BE560340A (en)
CH353756A (en) 1961-04-30

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