EP0172544A3 - Process for manufacturing rolled steel products, in particular helically ribbed prestressed steel rods - Google Patents
Process for manufacturing rolled steel products, in particular helically ribbed prestressed steel rods Download PDFInfo
- Publication number
- EP0172544A3 EP0172544A3 EP85110316A EP85110316A EP0172544A3 EP 0172544 A3 EP0172544 A3 EP 0172544A3 EP 85110316 A EP85110316 A EP 85110316A EP 85110316 A EP85110316 A EP 85110316A EP 0172544 A3 EP0172544 A3 EP 0172544A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- content
- martensite
- rods
- tension
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 6
- 239000010959 steel Substances 0.000 title abstract 6
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 229910000734 martensite Inorganic materials 0.000 abstract 2
- 239000002826 coolant Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000005098 hot rolling Methods 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000005496 tempering Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
- Y10S148/907—Threaded or headed fastener
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatment Of Articles (AREA)
- Laminated Bodies (AREA)
- Rod-Shaped Construction Members (AREA)
- Metal Rolling (AREA)
- Coating With Molten Metal (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85110316T ATE49779T1 (en) | 1984-08-23 | 1985-08-17 | PROCESS FOR THE MANUFACTURE OF ROLLED STEEL PRODUCTS, IN PARTICULAR SCREWABLE PRE-STEELS OR THE LIKE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3431008A DE3431008C2 (en) | 1984-08-23 | 1984-08-23 | Heat treatment of hot rolled bars or wires |
DE3431008 | 1984-08-23 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0172544A2 EP0172544A2 (en) | 1986-02-26 |
EP0172544A3 true EP0172544A3 (en) | 1987-10-28 |
EP0172544B1 EP0172544B1 (en) | 1990-01-24 |
EP0172544B2 EP0172544B2 (en) | 1996-06-05 |
Family
ID=6243708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85110316A Expired - Lifetime EP0172544B2 (en) | 1984-08-23 | 1985-08-17 | Process for heat treating hot rolled steel rod or wire for prestressing concrete |
Country Status (10)
Country | Link |
---|---|
US (1) | US4877463A (en) |
EP (1) | EP0172544B2 (en) |
JP (1) | JPH0660350B2 (en) |
AT (1) | ATE49779T1 (en) |
AU (1) | AU565805B2 (en) |
BR (1) | BR8504032A (en) |
CA (1) | CA1268957A (en) |
DE (2) | DE3431008C2 (en) |
ES (1) | ES8609490A1 (en) |
ZA (1) | ZA856448B (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3431008C2 (en) | 1984-08-23 | 1986-10-16 | Dyckerhoff & Widmann AG, 8000 München | Heat treatment of hot rolled bars or wires |
DE3631928C2 (en) * | 1986-09-19 | 1994-06-09 | Aicher Max | Process for the production of rolled steel products |
DE8717648U1 (en) * | 1987-09-11 | 1989-09-28 | ARBED S.A., Luxemburg/Luxembourg | Hot-rolled concrete reinforcing bar, in particular concrete ribbed bar |
DE3730489A1 (en) * | 1987-09-11 | 1989-03-30 | Dyckerhoff & Widmann Ag | CONCRETE REINFORCEMENT BAR, PARTICULAR CONCRETE RIB BAR |
DE4224222A1 (en) * | 1992-07-22 | 1994-01-27 | Inst Stahlbeton Bewehrung Ev | Structural steel, in particular rebar and process for its manufacture |
GB9310854D0 (en) * | 1993-05-26 | 1993-07-14 | Asw Ltd | Steel bars and rods and manufacturing process |
DE29709213U1 (en) * | 1997-05-26 | 1998-09-24 | MiTek Industries GmbH, 63128 Dietzenbach | Tensioning or fastening screw, in particular pipe screw |
CA2292166A1 (en) | 1999-01-13 | 2000-07-13 | Kent B. Godsted | Chemically coated fasteners having improved penetration and withdrawal resistance |
US6086305A (en) | 1999-01-13 | 2000-07-11 | Illinois Tool Works Inc. | Nails having selected heat treatment and hardening |
US6109851A (en) | 1999-01-13 | 2000-08-29 | Illinois Tool Works Inc. | Screws having selected heat treatment and hardening |
DE19921286A1 (en) * | 1999-05-07 | 2000-11-09 | Sms Demag Ag | Heat treatment process for the production of surface-hardened long and flat products from unalloyed or low-alloy steels |
ITMI20031031A1 (en) * | 2003-05-22 | 2004-11-23 | Danieli Off Mecc | METALLIC SPOOLING METHOD IN BAR. |
US7624556B2 (en) | 2003-11-25 | 2009-12-01 | Bbv Vorspanntechnik Gmbh | Threaded deformed reinforcing bar and method for making the bar |
US8997420B2 (en) * | 2004-11-29 | 2015-04-07 | Victor Amend | Reinforced insulated forms for constructing concrete walls and floors |
CN1327008C (en) * | 2005-07-07 | 2007-07-18 | 东北大学 | Post rolling fast cooling-production technology of high strength ribbed reinforced bar |
DE202010006059U1 (en) * | 2010-04-23 | 2010-07-22 | Stahlwerk Annahütte Max Aicher GmbH & Co KG | threaded rod |
AU2013205904B2 (en) * | 2012-05-17 | 2017-12-07 | Woodstock Percussion Pty Ltd | Full Strength Threaded Bar |
CZ307645B6 (en) * | 2017-02-15 | 2019-01-30 | Západočeská Univerzita V Plzni | Method of manufacturing steel parts |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH364886A (en) * | 1958-08-13 | 1962-10-15 | Dyckerhoff & Widmann Ag | Reinforcing bar for prestressed concrete |
DE1913758A1 (en) * | 1968-03-18 | 1969-10-09 | United States Steel Corp | Cold drawn wires from hot rolled steel bar and process for their manufacture |
DE2163163B2 (en) * | 1971-12-20 | 1972-11-30 | Fried. Krupp Hüttenwerke AG, 4630 Bochum | High strength steel - for wire having a sorbitic structure |
DE2439784A1 (en) * | 1973-09-24 | 1975-04-03 | Qualitaets Und Edelstahl Kom V | Concrete reinforcing rods - are quenched after hot rolling and profiling |
BE874535A (en) * | 1979-02-28 | 1979-06-18 | Centre Rech Metallurgique | PROCESS FOR MANUFACTURING HIGH ELASTIC LIMIT STEEL LAMINATED PRODUCTS |
DE3131078C1 (en) * | 1981-08-06 | 1982-10-28 | Dyckerhoff & Widmann AG, 8000 München | Anchoring or connecting body for steel bars having surface profilings in the form of ribs |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE137729C (en) * | ||||
BE790867A (en) * | 1972-10-31 | 1973-02-15 | Centre Rech Metallurgique | PROCESS FOR IMPROVING THE QUALITY OF LAMINATED PRODUCTS, SUCH AS ROUND OR CONCRETE BARS, MACHINE WIRE, ETC .... |
DE2353034B2 (en) * | 1972-10-31 | 1980-03-13 | Centre De Recherches Metallurgiques- Centrum Voor Research In De Metallurgie, Bruessel | Process for improving the mechanical strength values of rolled steel products |
FR2238768A1 (en) * | 1973-07-23 | 1975-02-21 | Sgtm | Thermo-mechanical treatment of austenitic steel - followed by controlled quenching giving mech props similar to expensive alloys |
US4180418A (en) * | 1973-09-11 | 1979-12-25 | Stahlwerke Peine-Salzgitter A.G. | Method of making a steel wire adapted for cold drawing |
IT1090143B (en) * | 1975-01-29 | 1985-06-18 | Centre Rech Metallurgique | PROCESS FOR MANUFACTURING LAMINATED STEEL PRODUCTS |
NL7610472A (en) * | 1975-09-30 | 1977-04-01 | Arbed | PROCESS FOR TREATMENT OF ROLLED STEEL. |
IT1107284B (en) * | 1977-05-13 | 1985-11-25 | Centre Rech Metallurgique | PROCEDURE FOR THE PRODUCTION OF IMPROVED QUALITY STEEL PROFILES |
GB1576944A (en) | 1977-06-20 | 1980-10-15 | British Steel Corp | Production of steeel rod or bar |
GB1587215A (en) * | 1977-11-03 | 1981-04-01 | British Steel Corp | Manufacture of welded steel mesh |
ES470858A1 (en) | 1977-06-20 | 1979-10-01 | British Steel Corp | Welded steel rod grid prodn. for use as concrete reinforcement - by hot rolling steel into rod, water cooling, air cooling to temper the surface and welding to form grid |
DE2844331A1 (en) * | 1977-10-14 | 1979-04-19 | Centre Rech Metallurgique | METHOD FOR TREATMENT OF TUBULAR STEEL PROFILES |
DE2900271C2 (en) | 1979-01-05 | 1984-01-26 | Stahlwerke Peine-Salzgitter Ag, 3150 Peine | Weldable reinforcing steel and process for its manufacture |
DE2916218A1 (en) * | 1979-04-21 | 1980-10-23 | Florin Stahl Walzwerk | Rolled steel prods. with multilayer microstructure - where prod. leaving hot rolling mill is quenched intermittently to obtain several layers of tempered martensite |
DE3431008C2 (en) | 1984-08-23 | 1986-10-16 | Dyckerhoff & Widmann AG, 8000 München | Heat treatment of hot rolled bars or wires |
-
1984
- 1984-08-23 DE DE3431008A patent/DE3431008C2/en not_active Expired
-
1985
- 1985-08-17 AT AT85110316T patent/ATE49779T1/en not_active IP Right Cessation
- 1985-08-17 EP EP85110316A patent/EP0172544B2/en not_active Expired - Lifetime
- 1985-08-17 DE DE8585110316T patent/DE3575577D1/en not_active Expired - Lifetime
- 1985-08-22 BR BR8504032A patent/BR8504032A/en not_active IP Right Cessation
- 1985-08-22 CA CA000489259A patent/CA1268957A/en not_active Expired - Lifetime
- 1985-08-22 ES ES546332A patent/ES8609490A1/en not_active Expired
- 1985-08-23 AU AU46582/85A patent/AU565805B2/en not_active Expired
- 1985-08-23 JP JP60184340A patent/JPH0660350B2/en not_active Expired - Fee Related
- 1985-08-23 ZA ZA856448A patent/ZA856448B/en unknown
-
1988
- 1988-06-07 US US07/205,556 patent/US4877463A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH364886A (en) * | 1958-08-13 | 1962-10-15 | Dyckerhoff & Widmann Ag | Reinforcing bar for prestressed concrete |
DE1913758A1 (en) * | 1968-03-18 | 1969-10-09 | United States Steel Corp | Cold drawn wires from hot rolled steel bar and process for their manufacture |
DE2163163B2 (en) * | 1971-12-20 | 1972-11-30 | Fried. Krupp Hüttenwerke AG, 4630 Bochum | High strength steel - for wire having a sorbitic structure |
DE2439784A1 (en) * | 1973-09-24 | 1975-04-03 | Qualitaets Und Edelstahl Kom V | Concrete reinforcing rods - are quenched after hot rolling and profiling |
BE874535A (en) * | 1979-02-28 | 1979-06-18 | Centre Rech Metallurgique | PROCESS FOR MANUFACTURING HIGH ELASTIC LIMIT STEEL LAMINATED PRODUCTS |
DE3131078C1 (en) * | 1981-08-06 | 1982-10-28 | Dyckerhoff & Widmann AG, 8000 München | Anchoring or connecting body for steel bars having surface profilings in the form of ribs |
Non-Patent Citations (1)
Title |
---|
IRON AND STEEL ENGINEER, Band 61, Nr. 3, März 1984, Seiten 53-57, Pittsburgh, Pennsylvania, US; P. SIMON et al.: "Tempcore: a new process for the production of high-quality reinforcing bars" * |
Also Published As
Publication number | Publication date |
---|---|
DE3431008A1 (en) | 1986-03-06 |
ES8609490A1 (en) | 1986-07-16 |
JPH0660350B2 (en) | 1994-08-10 |
DE3575577D1 (en) | 1990-03-01 |
EP0172544B2 (en) | 1996-06-05 |
AU4658285A (en) | 1986-02-27 |
US4877463A (en) | 1989-10-31 |
EP0172544B1 (en) | 1990-01-24 |
BR8504032A (en) | 1986-06-10 |
ATE49779T1 (en) | 1990-02-15 |
EP0172544A2 (en) | 1986-02-26 |
JPS6160824A (en) | 1986-03-28 |
DE3431008C2 (en) | 1986-10-16 |
ES546332A0 (en) | 1986-07-16 |
CA1268957A (en) | 1990-05-15 |
AU565805B2 (en) | 1987-10-01 |
ZA856448B (en) | 1986-04-30 |
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