SE8204207D0 - PROCEDURE FOR THE MANUFACTURE OF REINFORCEMENT STEEL FOR CONCRETE WITH IMPROVED PROPERTIES - Google Patents
PROCEDURE FOR THE MANUFACTURE OF REINFORCEMENT STEEL FOR CONCRETE WITH IMPROVED PROPERTIESInfo
- Publication number
- SE8204207D0 SE8204207D0 SE8204207A SE8204207A SE8204207D0 SE 8204207 D0 SE8204207 D0 SE 8204207D0 SE 8204207 A SE8204207 A SE 8204207A SE 8204207 A SE8204207 A SE 8204207A SE 8204207 D0 SE8204207 D0 SE 8204207D0
- Authority
- SE
- Sweden
- Prior art keywords
- concrete
- procedure
- manufacture
- improved properties
- reinforcement steel
- Prior art date
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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
-
- 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
- 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
Landscapes
- 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)
- Metal Rolling (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Reinforcement Elements For Buildings (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
In order to achieve a yield strength of between 400 and 600 MPa and an elongation of at least 14%, steel reinforcing bars are rapidly cooled during or immediately after rolling. The mean calorific flux density, ? (MW/m2), between 800 and 600.degree.C and the duration of cooling, t (seconds), satisfy the following conditions: 0.45 d - 0.4<? . t<0.82 d + 0.6 log?? ,- 0964 log d + 2.098 in which d (mm) is the bar diameter.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE6/47492A BE889575A (en) | 1981-07-09 | 1981-07-09 | PROCESS FOR THE MANUFACTURE OF STEEL CONCRETE REINFORCEMENTS WITH IMPROVED PROPERTIES. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE8204207D0 true SE8204207D0 (en) | 1982-07-07 |
| SE8204207L SE8204207L (en) | 1983-01-10 |
| SE462853B SE462853B (en) | 1990-09-10 |
Family
ID=3874897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8204207A SE462853B (en) | 1981-07-09 | 1982-07-07 | PROCEDURES FOR REGULATING THE QUICK COOLING IN THE MANUFACTURE OF STEEL ALARMING STARS |
Country Status (21)
| Country | Link |
|---|---|
| JP (1) | JPS589920A (en) |
| KR (1) | KR870001090B1 (en) |
| AT (1) | AT375401B (en) |
| AU (1) | AU536703B2 (en) |
| BE (1) | BE889575A (en) |
| BR (1) | BR8108179A (en) |
| CA (1) | CA1201960A (en) |
| CH (1) | CH639137A5 (en) |
| DD (1) | DD202309A5 (en) |
| DK (1) | DK152691C (en) |
| ES (1) | ES8401530A1 (en) |
| FI (1) | FI72748C (en) |
| GR (1) | GR77249B (en) |
| IE (1) | IE53019B1 (en) |
| IN (1) | IN154221B (en) |
| LU (1) | LU84263A1 (en) |
| MX (1) | MX159859A (en) |
| NO (1) | NO156903C (en) |
| SE (1) | SE462853B (en) |
| YU (1) | YU42779B (en) |
| ZA (1) | ZA818244B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6066099A (en) * | 1983-09-21 | 1985-04-16 | Hitachi Ltd | Temperature balance control of multistage heat exchanger |
| CH681603A5 (en) * | 1984-05-30 | 1993-04-30 | Von Roll Ag | |
| JPS61110897A (en) * | 1984-11-06 | 1986-05-29 | Toshiba Corp | Flow rate control method of heat exchanger |
| DD234281B1 (en) * | 1984-12-21 | 1989-06-21 | Florin Stahl Walzwerk | METHOD FOR PRESSURE WATER TREATMENT OF ROLLING STEEL PRODUCTS |
| KR101225251B1 (en) * | 2010-09-29 | 2013-01-22 | 현대제철 주식회사 | Apparatus for manufacturing high-strength steel bars in adjusting metallugical transformation and the method thereof |
| RU2583554C1 (en) * | 2015-01-22 | 2016-05-10 | Акционерное общество "Научно-исследовательский центр "Строительство" (АО "НИЦ "Строительство") | Method for production of hardened reinforcing bar of periodic profile |
-
1981
- 1981-07-09 BE BE6/47492A patent/BE889575A/en not_active IP Right Cessation
- 1981-08-21 IN IN934/CAL/81A patent/IN154221B/en unknown
- 1981-08-31 CH CH559081A patent/CH639137A5/en not_active IP Right Cessation
- 1981-10-14 DK DK455481A patent/DK152691C/en active
- 1981-11-13 JP JP56182941A patent/JPS589920A/en active Granted
- 1981-11-27 ZA ZA818244A patent/ZA818244B/en unknown
- 1981-12-16 BR BR8108179A patent/BR8108179A/en unknown
- 1981-12-18 AU AU78624/81A patent/AU536703B2/en not_active Ceased
-
1982
- 1982-07-07 SE SE8204207A patent/SE462853B/en not_active IP Right Cessation
- 1982-07-07 GR GR68675A patent/GR77249B/el unknown
- 1982-07-08 AT AT0265382A patent/AT375401B/en not_active IP Right Cessation
- 1982-07-08 FI FI822426A patent/FI72748C/en not_active IP Right Cessation
- 1982-07-08 IE IE1651/82A patent/IE53019B1/en not_active IP Right Cessation
- 1982-07-08 LU LU84263A patent/LU84263A1/en unknown
- 1982-07-08 CA CA000406914A patent/CA1201960A/en not_active Expired
- 1982-07-08 ES ES513811A patent/ES8401530A1/en not_active Expired
- 1982-07-08 NO NO822384A patent/NO156903C/en unknown
- 1982-07-08 YU YU1497/82A patent/YU42779B/en unknown
- 1982-07-09 MX MX193521A patent/MX159859A/en unknown
- 1982-07-09 KR KR8203079A patent/KR870001090B1/en active
- 1982-07-09 DD DD82241555A patent/DD202309A5/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IN154221B (en) | 1984-10-06 |
| NO156903B (en) | 1987-09-07 |
| IE821651L (en) | 1983-01-09 |
| YU149782A (en) | 1985-04-30 |
| IE53019B1 (en) | 1988-05-11 |
| NO156903C (en) | 1987-12-16 |
| JPS6219488B2 (en) | 1987-04-28 |
| FI822426A0 (en) | 1982-07-08 |
| BR8108179A (en) | 1983-04-12 |
| ES513811A0 (en) | 1983-12-01 |
| ATA265382A (en) | 1983-12-15 |
| SE462853B (en) | 1990-09-10 |
| ES8401530A1 (en) | 1983-12-01 |
| GR77249B (en) | 1984-09-11 |
| NO822384L (en) | 1983-01-10 |
| FI822426L (en) | 1983-01-10 |
| YU42779B (en) | 1988-12-31 |
| AU536703B2 (en) | 1984-05-17 |
| DK455481A (en) | 1983-01-10 |
| JPS589920A (en) | 1983-01-20 |
| AT375401B (en) | 1984-08-10 |
| FI72748C (en) | 1987-07-10 |
| CH639137A5 (en) | 1983-10-31 |
| ZA818244B (en) | 1983-04-27 |
| KR870001090B1 (en) | 1987-06-04 |
| BE889575A (en) | 1982-01-11 |
| KR840000653A (en) | 1984-02-25 |
| MX159859A (en) | 1989-09-21 |
| CA1201960A (en) | 1986-03-18 |
| FI72748B (en) | 1987-03-31 |
| DK152691B (en) | 1988-04-18 |
| AU7862481A (en) | 1983-01-13 |
| DK152691C (en) | 1988-08-29 |
| SE8204207L (en) | 1983-01-10 |
| DD202309A5 (en) | 1983-09-07 |
| LU84263A1 (en) | 1983-02-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
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| NUG | Patent has lapsed |
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