KR890003969A - Manufacturing method of high strength spiral rebar wire and high strength spiral rebar - Google Patents

Manufacturing method of high strength spiral rebar wire and high strength spiral rebar Download PDF

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Publication number
KR890003969A
KR890003969A KR1019870015397A KR870015397A KR890003969A KR 890003969 A KR890003969 A KR 890003969A KR 1019870015397 A KR1019870015397 A KR 1019870015397A KR 870015397 A KR870015397 A KR 870015397A KR 890003969 A KR890003969 A KR 890003969A
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South Korea
Prior art keywords
wire rod
strength
yield point
wire
heating
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Application number
KR1019870015397A
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Korean (ko)
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KR920010159B1 (en
Inventor
구니오 스에히로
Original Assignee
히지가다 도시오
고오슈오하네스렌 가부시기가이샤
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Publication of KR890003969A publication Critical patent/KR890003969A/en
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Publication of KR920010159B1 publication Critical patent/KR920010159B1/en

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    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

내용 없음No content

Description

[발명의 명칭[Name of invention]

고강도 나선 철근용 선재의 제조방법 및 고강도 나선철근Manufacturing method of high strength spiral rebar wire and high strength spiral rebar

[도면의 간단한 설명][Brief Description of Drawings]

제 5 도는 (실험예:1)에서 구한 각 공시체의 기계적 성질을 강조 A,B별로 표시한선도. 제 6 도(a)는(실험예:2)에 있어서의 벤딩가공기의 정면도. 제 6 도(b)는 벤딩가공후 공시체의 정면도. 제 7 도는(실험예:2)에 있어서의 인장시험기의 정면도.5 is a diagram showing the mechanical properties of each specimen obtained in (Experimental Example 1) by highlighting A and B. FIG. 6A is a front view of the bending machine in (Experimental Example 2). 6 (b) is a front view of the specimen after the bending process. 7 is a front view of a tensile tester in (Experimental Example 2).

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (4)

선재를 연속적으로 열처리해서 고강도화하는 경우에 있어서, 당해 선재를 소정의 항복점 강도로 완성시키기 위한 최종 가열에 고주 파유도 가열수단을 사용하고, 당해 최종 가열이 상기 소정 항복점 강도로 완성시키는 통상의 경우에 비해서,극히 짧고 적은 시간내에 충분히 높은 온도까지 선재표면을 승온시킬수 있도록 설정하고, 상기 가열 후에 선재를 급냉하므로서, 얻어진 선재의 표층부가 소정항복점 강도를 유지하는데 필요한 경도이하이며, 중심부가 소정 항복점 강도를 유지하는데 필요한 경도이상이고, 선재의 전체단면 평균 항복점 강도가 소정항복점 강도를 유지하고 있는 것을 특징으로 하는 고강도나선 철근용선재의 제조방법.In the case where the wire is continuously heat treated to increase the strength, high frequency induction heating means is used for the final heating to complete the wire to a predetermined yield point strength, and in the usual case in which the final heating is completed to the predetermined yield point strength. On the other hand, it is set so that the wire surface can be raised to a sufficiently high temperature in a very short and short time, and the wire rod is quenched after the heating, so that the surface layer portion of the obtained wire rod is less than the hardness required to maintain the predetermined yield point strength, and the center portion has a predetermined yield point strength. A method for producing a high strength spiral reinforcing wire rod, characterized in that it is equal to or greater than the hardness necessary for holding, and the overall section average yield point strength of the wire rod maintains a predetermined yield point strength. 제 1 항에 있어서, 최종 가열이, 소재강선재를 하아드닝, 템퍼링하는 경우의 상기 템퍼링가열인 고강도 나선 철근용선재의 제조방법The method for producing a high strength spiral reinforcing wire rod according to claim 1, wherein the final heating is the tempering heating in the case of hardening and tempering the raw steel rod. 제 1 항에 있어서, 최종가열이, 열간압연되는 선재를 직접 하아드닝한 후, 당해선재에 실시되는 템퍼링 가열인 고강도 나선 철근용선재의 제조방법.The method for producing a high strength spiral reinforcing wire rod according to claim 1, wherein the final heating is a tempering heating performed on the wire rod after directly hardening the hot rolled wire rod. 열처리선재를 나선형상으로 성형해서 이루어지는 고강도나선 철근에 있어서,사용 선재가 중심부는 고경도, 표층부는 저경도이고, 소정곡률로 벤딩가공된 부분을 포함한 선재의 전체단면평균 항복점 강도가 130Kgf/㎟이상으로 유지되어 있는 것을 특징으로 하는 고강도 나선철근.In the high-strength spiral reinforcing steel rod formed by forming a heat-treated wire rod in a spiral shape, the used wire rod has a high hardness at the center portion and a low hardness at the surface layer portion, and the overall cross-sectional average yield point strength of the wire rod including the bent portion at a predetermined curvature is 130 Kgf / mm 2 or more. High strength spiral reinforcing bar, characterized in that it is maintained. ※참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: This is to be disclosed based on the first application.
KR1019870015397A 1987-08-27 1987-12-30 Production of wire rod for high-strength spiral hoop and high-strength spiral hoop KR920010159B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62-211483 1987-08-27
JP62211483A JP2829517B2 (en) 1987-08-27 1987-08-27 Manufacturing method of high strength spiral rebar

Publications (2)

Publication Number Publication Date
KR890003969A true KR890003969A (en) 1989-04-19
KR920010159B1 KR920010159B1 (en) 1992-11-19

Family

ID=16606701

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870015397A KR920010159B1 (en) 1987-08-27 1987-12-30 Production of wire rod for high-strength spiral hoop and high-strength spiral hoop

Country Status (2)

Country Link
JP (1) JP2829517B2 (en)
KR (1) KR920010159B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200102866A (en) * 2019-02-22 2020-09-01 (주)제이에스아이 Palletizer on which products are loaded by pallet lifting

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4874369B2 (en) * 2009-07-03 2012-02-15 新日本製鐵株式会社 Continuous machining heat treatment line for medium to high carbon steel wire

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50144621A (en) * 1974-05-08 1975-11-20

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200102866A (en) * 2019-02-22 2020-09-01 (주)제이에스아이 Palletizer on which products are loaded by pallet lifting

Also Published As

Publication number Publication date
KR920010159B1 (en) 1992-11-19
JP2829517B2 (en) 1998-11-25
JPS6456827A (en) 1989-03-03

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