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GB772103A - Method for forming heads on the ends of steel rods - Google Patents

Method for forming heads on the ends of steel rods

Info

Publication number
GB772103A
GB772103A GB23037/55A GB2303755A GB772103A GB 772103 A GB772103 A GB 772103A GB 23037/55 A GB23037/55 A GB 23037/55A GB 2303755 A GB2303755 A GB 2303755A GB 772103 A GB772103 A GB 772103A
Authority
GB
United Kingdom
Prior art keywords
rod
upsetting
die
hardened
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
GB23037/55A
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 GB772103A publication Critical patent/GB772103A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08—Upsetting
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/12—Anchoring devices
    • E04C5/125—Anchoring devices the tensile members are profiled to ensure the anchorage, e.g. when provided with screw-thread, bulges, corrugations

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forging (AREA)
  • Heat Treatment Of Articles (AREA)
  • Wire Processing (AREA)

Abstract

772,103. Forging. KOHLER, F. Aug. 10, 1955 [Aug. 20, 1954; June 13, 1955], No. 23037/55. Drawings to Specification. Classes 83 (2) and 83 (4). A method of hot-upsetting a head on the end of a steel rod which has been hardened by heat treatment or cold working, comprises inserting the end of the rod in a die and therein heating and upsetting the end in such a manner that the heating to forging temperature is performed rapidly and briefly whereby the mechanical strength of the hardened steel rod is not impaired. The invention is applicable in particular to high-tensile steel re-inforcing rods used in making pre-stressed concrete structures, these rods being cold-twisted before heading whereby they are hardened. The end of the rod after being inserting in the die, is locally heated by a torch or by high frequency induction heating, and is then upset, for example by hand tools. The die and also the part of the rod adjacent the heated end, are preferably cooled by water. An example is given for the upsetting of cold-twisted concrete re-inforceing rods.
GB23037/55A 1954-08-20 1955-08-10 Method for forming heads on the ends of steel rods Expired GB772103A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT772103X 1954-08-20

Publications (1)

Publication Number Publication Date
GB772103A true GB772103A (en) 1957-04-10

Family

ID=3680702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23037/55A Expired GB772103A (en) 1954-08-20 1955-08-10 Method for forming heads on the ends of steel rods

Country Status (1)

Country Link
GB (1) GB772103A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306786A (en) * 1964-04-03 1967-02-28 Koshuha Netsuren Kabushiki Kai Method of working pc steel bars while subheated
EP0098825A1 (en) * 1982-07-01 1984-01-18 Eurosteel S.A. Fibres for the reinforcement of mouldable materials with a hydraulic or other bonding agent, and their manufacture
EP0265862A1 (en) * 1986-10-27 1988-05-04 Oy Lohja Ab A method for the manufacture of a joint means for building units
US4883713A (en) * 1986-04-28 1989-11-28 Eurosteel S.A. Moldable material reinforcement fibers with hydraulic or non-hydraulic binder and manufacturing thereof
GB2286782A (en) * 1994-02-16 1995-08-30 Ccl Systems Ltd Thread formation
GB2503936A (en) * 2012-07-13 2014-01-15 Gkn Land Systems Ltd Manufacture of wheels
EP3670903A1 (en) * 2018-12-20 2020-06-24 Exergyn Ltd. Improvements to wire forming of shape-memory alloys (smas) or negative thermal expansion (nte) materials for use in an energy recovery system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306786A (en) * 1964-04-03 1967-02-28 Koshuha Netsuren Kabushiki Kai Method of working pc steel bars while subheated
EP0098825A1 (en) * 1982-07-01 1984-01-18 Eurosteel S.A. Fibres for the reinforcement of mouldable materials with a hydraulic or other bonding agent, and their manufacture
WO1984000186A1 (en) * 1982-07-01 1984-01-19 Eurosteel Sa Moldable material reinforcement fibers with hydraulic or non-hydraulic binder and manufacturing thereof
US4883713A (en) * 1986-04-28 1989-11-28 Eurosteel S.A. Moldable material reinforcement fibers with hydraulic or non-hydraulic binder and manufacturing thereof
EP0265862A1 (en) * 1986-10-27 1988-05-04 Oy Lohja Ab A method for the manufacture of a joint means for building units
GB2286782A (en) * 1994-02-16 1995-08-30 Ccl Systems Ltd Thread formation
GB2286782B (en) * 1994-02-16 1997-04-02 Ccl Systems Ltd Connection system for deformed steel reinforcing rods
US5776001A (en) * 1994-02-16 1998-07-07 Ccl Systems Limited Thread formation
GB2503936A (en) * 2012-07-13 2014-01-15 Gkn Land Systems Ltd Manufacture of wheels
US9987674B2 (en) 2012-07-13 2018-06-05 Gkn Land Systems Limited Manufacture of wheels
GB2503936B (en) * 2012-07-13 2020-03-04 Gkn Wheels Ltd Manufacture of wheels
EP3670903A1 (en) * 2018-12-20 2020-06-24 Exergyn Ltd. Improvements to wire forming of shape-memory alloys (smas) or negative thermal expansion (nte) materials for use in an energy recovery system

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