FI110788B - Förfarande för att höja sträckgränsen hos kallformat profilstål - Google Patents
Förfarande för att höja sträckgränsen hos kallformat profilstål Download PDFInfo
- Publication number
- FI110788B FI110788B FI965205A FI965205A FI110788B FI 110788 B FI110788 B FI 110788B FI 965205 A FI965205 A FI 965205A FI 965205 A FI965205 A FI 965205A FI 110788 B FI110788 B FI 110788B
- Authority
- FI
- Finland
- Prior art keywords
- temperature
- steel
- cold
- seconds
- profile
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 66
- 239000010959 steel Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 230000032683 aging Effects 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 239000010960 cold rolled steel Substances 0.000 claims abstract description 3
- 238000005482 strain hardening Methods 0.000 claims abstract 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 230000035882 stress Effects 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000009713 electroplating Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000005246 galvanizing Methods 0.000 abstract description 5
- 230000006698 induction Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 abstract description 2
- 238000010791 quenching Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 5
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910018125 Al-Si Inorganic materials 0.000 description 1
- 229910018520 Al—Si Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910002065 alloy metal Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 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
-
- 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
- C21D1/26—Methods of annealing
-
- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
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)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Coating With Molten Metal (AREA)
- Electroplating Methods And Accessories (AREA)
Claims (6)
1. Förfarande för att höja sträckgränsen hos kallvalsade stälstycken som en linje i en del av en lineär tillverkningsprocess, varvid ett platt stalband som innehäller 0,01-0,25 % koi och 0,001-0,006 % kväve, kallvalsas tili den önskade strukturella 5 formen utgäende frän bandets enkla form, kännetecknat av att förfarandet innefat-tar steg för att föra stälstycket, som ätminstone delvis undergätt en förutbestämd formförändring, genom ett upphettningssteg, där stälstyckets temperatur höjs tili omrädet 200 °C - 500 °C, för at t halla stälstyckets temperatur i derma temperatur-intervall under en period mellan tvä sekunder - 30 sekunder, varvid kombinationen 10 av temperatur och tid väljs i nämnda omräde och intervall sä, att en pä förhand be-stämd deformationsäldring ästadkoms, och för att nedkyla stälstycket efter upp-värmningen och deformationsäldringen, samt för att därefter slutligt kallforma stälstycket.
2. Förfarande enligt patentkrav 1, kännetecknat av att stälstyckets temperatur 15 höjs tili omrädet 200 °C - 450 °C under 2-30 sekunder, och att stälstyckenas temperatur sedan halls vid ätminstone 440 °C under 1-15 sekunder.
3. Förfarande enligt patentkrav 1 eller 2, kännetecknat av att stälstyckets temperatur höjs tili omrädet 350 °C - 400 °C under 2-10 sekunder, och att temperaturen hälls mellan 440 °C - 460 °C under 2-6 sekunder. 20
4. Förfarande enligt nägot av patentkraven 1-3, kännetecknat av att stälstyckets kylningsskede sänker styckets temperatur till under 90 °C före därpäföljande kall-formning.
5. Förfarande enligt patentkrav 4, kännetecknat av att steget för stälstyckenas kylningsskede sänker styckets temperatur tili mellan 25 °C - 45 °C före nästa där- 25 päföljande kallformning.
6. Förfarande enligt nägot av patentkraven, kännetecknat av att stegen för att höja temperaturen och upprätthälla denna högre temperatur utförs genom att pä förhand upphetta stälstycket och därefter belägga det med en lineär galvaniseringsbe- handling.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPM6483A AUPM648394A0 (en) | 1994-06-27 | 1994-06-27 | Method of increasing the yield strength of cold formed steel sections |
| AUPM648394 | 1994-06-27 | ||
| PCT/AU1995/000378 WO1996000305A1 (en) | 1994-06-27 | 1995-06-27 | Method of increasing the yield strength of cold formed steel sections |
| AU9500378 | 1995-06-27 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI965205A FI965205A (sv) | 1996-12-23 |
| FI965205A0 FI965205A0 (sv) | 1996-12-23 |
| FI110788B true FI110788B (sv) | 2003-03-31 |
Family
ID=3781052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI965205A FI110788B (sv) | 1994-06-27 | 1996-12-23 | Förfarande för att höja sträckgränsen hos kallformat profilstål |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US5895534A (sv) |
| EP (1) | EP0763140B1 (sv) |
| JP (1) | JP3763041B2 (sv) |
| KR (1) | KR100340816B1 (sv) |
| CN (1) | CN1066489C (sv) |
| AT (1) | ATE207972T1 (sv) |
| AU (1) | AUPM648394A0 (sv) |
| BR (1) | BR9508144A (sv) |
| CA (1) | CA2193349C (sv) |
| DE (1) | DE69523589T2 (sv) |
| ES (1) | ES2167441T3 (sv) |
| FI (1) | FI110788B (sv) |
| MY (1) | MY113388A (sv) |
| NZ (1) | NZ288531A (sv) |
| TR (1) | TR199500761A2 (sv) |
| TW (1) | TW267955B (sv) |
| WO (1) | WO1996000305A1 (sv) |
| ZA (1) | ZA955322B (sv) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2373064C (en) | 1999-05-10 | 2008-10-21 | Mannesmannroehren-Werke Ag | Process for producing welded steel pipes with a high degree of strength, ductility and deformability |
| CA2378934C (en) | 2002-03-26 | 2005-11-15 | Ipsco Inc. | High-strength micro-alloy steel and process for making same |
| US7220325B2 (en) * | 2002-04-03 | 2007-05-22 | Ipsco Enterprises, Inc. | High-strength micro-alloy steel |
| JP4819305B2 (ja) | 2003-09-04 | 2011-11-24 | 日産自動車株式会社 | 強化部材の製造方法 |
| US8407966B2 (en) | 2003-10-28 | 2013-04-02 | Ispan Systems Lp | Cold-formed steel joist |
| US20050108978A1 (en) * | 2003-11-25 | 2005-05-26 | Best Joint Inc. | Segmented cold formed joist |
| CA2652587C (en) | 2006-05-18 | 2014-12-02 | Paradigm Focus Product Development Inc. | Light steel trusses and truss systems |
| CA2742742C (en) * | 2008-09-08 | 2015-11-17 | Ispan Systems Lp | Adjustable floor to wall connectors for use with bottom chord and web bearing joists |
| CA2778223C (en) | 2009-07-22 | 2017-08-15 | Ispan Systems Lp | Roll formed steel beam |
| US8943776B2 (en) | 2012-09-28 | 2015-02-03 | Ispan Systems Lp | Composite steel joist |
| CA2953741C (en) | 2014-07-03 | 2021-08-10 | Arcelormittal | Method for producing an ultra high strength coated or not coated steel sheet and obtained sheet |
| CA3009294C (en) | 2015-12-29 | 2022-06-21 | Arcelormittal | Method for producing a ultra high strength galvannealed steel sheet and obtained galvannealed steel sheet |
| CA3050000A1 (en) | 2019-07-16 | 2021-01-16 | Invent To Build Inc. | Concrete fillable steel joist |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4113523A (en) * | 1973-07-25 | 1978-09-12 | Nippon Kokan Kabushiki Kaisha | Process of making high tension cold-reduced al-killed steel excellent in accelerated aging property |
| JPS6019301B2 (ja) * | 1976-07-21 | 1985-05-15 | 森下製薬株式会社 | ４，５−ジヒドロ−３（２ｈ）−ピリダジノン誘導体 |
| JPS6043431A (ja) * | 1983-08-19 | 1985-03-08 | Nippon Steel Corp | 連続焼鈍による耐フル−チイング性のすぐれた軟質表面処理用鋼板の製造法 |
| JPS59133324A (ja) * | 1983-08-22 | 1984-07-31 | Sumitomo Metal Ind Ltd | 成形性のすぐれた高張力冷延鋼板の製造法 |
| JPS6067627A (ja) * | 1983-09-22 | 1985-04-18 | Nippon Steel Corp | 連続焼鈍による耐フル−チイング性のすぐれた軟質表面処理用鋼板の製造法 |
-
1994
- 1994-06-27 AU AUPM6483A patent/AUPM648394A0/en not_active Abandoned
- 1994-06-30 TW TW083106059A patent/TW267955B/zh not_active IP Right Cessation
-
1995
- 1995-06-27 TR TR95/00761A patent/TR199500761A2/xx unknown
- 1995-06-27 US US08/765,316 patent/US5895534A/en not_active Expired - Lifetime
- 1995-06-27 CA CA002193349A patent/CA2193349C/en not_active Expired - Fee Related
- 1995-06-27 NZ NZ288531A patent/NZ288531A/en not_active IP Right Cessation
- 1995-06-27 JP JP50264996A patent/JP3763041B2/ja not_active Expired - Fee Related
- 1995-06-27 ES ES95923125T patent/ES2167441T3/es not_active Expired - Lifetime
- 1995-06-27 EP EP95923125A patent/EP0763140B1/en not_active Expired - Lifetime
- 1995-06-27 ZA ZA9505322A patent/ZA955322B/xx unknown
- 1995-06-27 BR BR9508144A patent/BR9508144A/pt not_active IP Right Cessation
- 1995-06-27 CN CN95193842A patent/CN1066489C/zh not_active Expired - Fee Related
- 1995-06-27 WO PCT/AU1995/000378 patent/WO1996000305A1/en active IP Right Grant
- 1995-06-27 KR KR1019960707619A patent/KR100340816B1/ko not_active IP Right Cessation
- 1995-06-27 DE DE69523589T patent/DE69523589T2/de not_active Expired - Lifetime
- 1995-06-27 AT AT95923125T patent/ATE207972T1/de active
- 1995-06-27 MY MYPI95001751A patent/MY113388A/en unknown
-
1996
- 1996-12-23 FI FI965205A patent/FI110788B/sv not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FI965205A (sv) | 1996-12-23 |
| DE69523589D1 (de) | 2001-12-06 |
| CN1066489C (zh) | 2001-05-30 |
| DE69523589T2 (de) | 2002-08-22 |
| BR9508144A (pt) | 1997-11-04 |
| EP0763140A4 (en) | 1998-09-23 |
| TW267955B (sv) | 1996-01-11 |
| ZA955322B (en) | 1998-06-29 |
| JP3763041B2 (ja) | 2006-04-05 |
| NZ288531A (en) | 1999-04-29 |
| ATE207972T1 (de) | 2001-11-15 |
| CN1151765A (zh) | 1997-06-11 |
| WO1996000305A1 (en) | 1996-01-04 |
| US5895534A (en) | 1999-04-20 |
| MY113388A (en) | 2002-02-28 |
| TR199500761A2 (tr) | 1996-07-21 |
| EP0763140A1 (en) | 1997-03-19 |
| AUPM648394A0 (en) | 1994-07-21 |
| JPH10502126A (ja) | 1998-02-24 |
| FI965205A0 (sv) | 1996-12-23 |
| CA2193349A1 (en) | 1996-01-04 |
| ES2167441T3 (es) | 2002-05-16 |
| CA2193349C (en) | 2002-09-10 |
| KR100340816B1 (ko) | 2002-11-07 |
| EP0763140B1 (en) | 2001-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |