KR910009359A - Prestressed concrete steel bar or steel wire with improved welding workability - Google Patents

Prestressed concrete steel bar or steel wire with improved welding workability

Info

Publication number
KR910009359A
KR910009359A KR1019900018141A KR900018141A KR910009359A KR 910009359 A KR910009359 A KR 910009359A KR 1019900018141 A KR1019900018141 A KR 1019900018141A KR 900018141 A KR900018141 A KR 900018141A KR 910009359 A KR910009359 A KR 910009359A
Authority
KR
South Korea
Prior art keywords
prestressed concrete
welding workability
improved welding
steel wire
steel bar
Prior art date
Application number
KR1019900018141A
Other languages
Korean (ko)
Other versions
KR930012255B1 (en
Inventor
히로시 사토
히데하루 야마시타
카즈 닛다
시게루 미조구찌
Original Assignee
신닛뽕세이데츠 가부시기가이샤
고오슈하네쯔렌 가부시기가이샤
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
Priority claimed from JP28996589A external-priority patent/JP2824855B2/en
Priority claimed from JP2085019A external-priority patent/JP2556388B2/en
Application filed by 신닛뽕세이데츠 가부시기가이샤, 고오슈하네쯔렌 가부시기가이샤 filed Critical 신닛뽕세이데츠 가부시기가이샤
Publication of KR910009359A publication Critical patent/KR910009359A/en
Application granted granted Critical
Publication of KR930012255B1 publication Critical patent/KR930012255B1/en

Links

Classifications

    • 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
    • C21D8/08—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires for concrete reinforcement
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
KR1019900018141A 1989-11-09 1990-11-09 Pristress concrete steel bar and wire KR930012255B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP1-289965 1989-11-09
JP28996589A JP2824855B2 (en) 1989-11-09 1989-11-09 Manufacturing method of steel bar for prestressed concrete
JP2085019A JP2556388B2 (en) 1990-04-02 1990-04-02 Manufacturing method of steel rod for prestressed concrete
JP2-85019 1990-08-09

Publications (2)

Publication Number Publication Date
KR910009359A true KR910009359A (en) 1991-06-28
KR930012255B1 KR930012255B1 (en) 1993-12-28

Family

ID=26426058

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900018141A KR930012255B1 (en) 1989-11-09 1990-11-09 Pristress concrete steel bar and wire

Country Status (1)

Country Link
KR (1) KR930012255B1 (en)

Also Published As

Publication number Publication date
KR930012255B1 (en) 1993-12-28

Similar Documents

Publication Publication Date Title
DE69312219D1 (en) Reinforcement steel scissors
IT8820878A0 (en) IMPROVED RESISTANCE WELDING OF GALVANIZED STEEL.
DK51693A (en) STEEL FIBER REINFORCED CONCRETE WITH HIGH STRENGTH STRENGTH
NO891969D0 (en) Corrosion resistant AUSTENITIC STEEL.
KR910009359A (en) Prestressed concrete steel bar or steel wire with improved welding workability
GB2290800B (en) High strength,high weldability steel bars and wires for prestressed concrete
ATA400181A (en) CONTRACTOR FOR CONCRETE STEEL BAR
NL193325B (en) Manufacture of bituminous concrete reinforced with steel wire chips.
GB2297763B (en) Prestressed concrete steel wire or rod.
FR2600358B1 (en) REINFORCED CONCRETE AND STEEL BEAMS
ATA21593A (en) STRENGTH REINFORCEMENT FOR SCAFFOLDING POST
DE9317720U1 (en) Retaining bracket for concrete slabs
DE9310349U1 (en) Connecting device for bars in steel construction
ATA254284A (en) REINFORCEMENT FOR STEEL CONCRETE CONSTRUCTION
KR870000782U (en) Prestressed concrete steel wire anchor
ATA22586A (en) CONCRETE REINFORCEMENT BAR
ATA304883A (en) REINFORCEMENT FOR STEEL CONCRETE CONSTRUCTION
NO914010L (en) FLAMMABLE PREFABRICATED STEEL BEAM
KR950006562U (en) Reinforcing bar for concrete construction
KR900017181U (en) Foundation for steel pipe poles
KR870016189U (en) Triangular steel bar for P.C concrete
KR850004999A (en) High tensile structural steel with good weldability
KR950009091U (en) Reinforcing bar for construction slab construction
PHUM6882Z (en) Prestressed concrete span pole
SE8903708D0 (en) IMPROVED RESISTANCE WELDING OF GALVANIZED STEEL

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20081223

Year of fee payment: 16

LAPS Lapse due to unpaid annual fee