CA2336687A1 - Process for producing heat-treatable sheet articles - Google Patents

Process for producing heat-treatable sheet articles Download PDF

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Publication number
CA2336687A1
CA2336687A1 CA002336687A CA2336687A CA2336687A1 CA 2336687 A1 CA2336687 A1 CA 2336687A1 CA 002336687 A CA002336687 A CA 002336687A CA 2336687 A CA2336687 A CA 2336687A CA 2336687 A1 CA2336687 A1 CA 2336687A1
Authority
CA
Canada
Prior art keywords
temperature
cooling
alloy
sheet article
alloy sheet
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
Application number
CA002336687A
Other languages
French (fr)
Other versions
CA2336687C (en
Inventor
Alok Kumar Gupta
Pierre Henri Marois
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rio Tinto Alcan International Ltd
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22231178&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2336687(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2336687A1 publication Critical patent/CA2336687A1/en
Application granted granted Critical
Publication of CA2336687C publication Critical patent/CA2336687C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Continuous Casting (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

A process of heat treating a sheet article made of a 6000 series aluminum alloy to achieve good "paint-bake response" that is substantially unaffected by natural aging. The process comprises heating the alloy sheet article at a solutionizing temperature followed by cooling the alloy sheet article. The cooling involves the following steps: (1) cooling from said solutionizing temperature to a temperature in the range of 150 - 250 °C at a rate greater than or equal to about 4 °C per second; (2) further cooling the alloy to a temperature in the range of ambient to 100 °C at a rate of 20 to 30 °C (preferably about 25 °C) per minute; and (3) further cooling the alloy sheet article having a temperature of 55 °C or more after step (2) to ambient temperature at a rate of less than 2 °C per hour. Alloy sheet articles suitable for use in the fabrication of automobile skin part can be produced in this way.
CA002336687A 1998-07-08 1999-07-07 Process for producing heat-treatable sheet articles Expired - Fee Related CA2336687C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US9205198P 1998-07-08 1998-07-08
US60/092,051 1998-07-08
PCT/CA1999/000618 WO2000003052A1 (en) 1998-07-08 1999-07-07 Process for producing heat-treatable sheet articles

Publications (2)

Publication Number Publication Date
CA2336687A1 true CA2336687A1 (en) 2000-01-20
CA2336687C CA2336687C (en) 2005-01-04

Family

ID=22231178

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002336687A Expired - Fee Related CA2336687C (en) 1998-07-08 1999-07-07 Process for producing heat-treatable sheet articles

Country Status (8)

Country Link
EP (1) EP1100977B1 (en)
JP (1) JP2002520486A (en)
AT (1) ATE279547T1 (en)
BR (1) BR9912522A (en)
CA (1) CA2336687C (en)
DE (1) DE69921146T2 (en)
NO (1) NO20010079L (en)
WO (1) WO2000003052A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106795592A (en) * 2014-10-28 2017-05-31 诺维尔里斯公司 Alloy product and preparation method

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6780259B2 (en) * 2001-05-03 2004-08-24 Alcan International Limited Process for making aluminum alloy sheet having excellent bendability
CN100429330C (en) * 2005-08-19 2008-10-29 株式会社神户制钢所 Shaping method of aluminium alloy section
WO2007076980A1 (en) * 2006-01-06 2007-07-12 Aleris Aluminum Duffel Bvba Aluminium alloy sheet for automotive applications and structural automobile body member provided with said aluminium alloy sheet
CN104561681A (en) * 2014-12-22 2015-04-29 河南明泰铝业股份有限公司 6016 aluminium alloy sheet for automotive body and production method of 6016 aluminium alloy sheet
CA3006318C (en) 2015-12-18 2021-05-04 Novelis Inc. High strength 6xxx aluminum alloys and methods of making the same
US10538834B2 (en) 2015-12-18 2020-01-21 Novelis Inc. High-strength 6XXX aluminum alloys and methods of making the same
CN107723524A (en) * 2017-11-10 2018-02-23 安徽华中天力铝业有限公司 A kind of 8150 electrolytic aluminium liquid Alloy Foils and its production technology
US11932928B2 (en) 2018-05-15 2024-03-19 Novelis Inc. High strength 6xxx and 7xxx aluminum alloys and methods of making the same
CN113201703B (en) * 2021-04-19 2022-07-08 龙口市丛林铝材有限公司 Aluminum alloy ingot casting homogenizing annealing stepped cooling process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5616189A (en) * 1993-07-28 1997-04-01 Alcan International Limited Aluminum alloys and process for making aluminum alloy sheet
US5700424A (en) * 1996-03-06 1997-12-23 Sky Aluminium Co., Ltd. System for preparing aluminum alloy strip having improved formability and bake hardenability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106795592A (en) * 2014-10-28 2017-05-31 诺维尔里斯公司 Alloy product and preparation method

Also Published As

Publication number Publication date
ATE279547T1 (en) 2004-10-15
DE69921146D1 (en) 2004-11-18
NO20010079D0 (en) 2001-01-05
DE69921146T2 (en) 2005-11-03
BR9912522A (en) 2001-05-02
CA2336687C (en) 2005-01-04
JP2002520486A (en) 2002-07-09
EP1100977B1 (en) 2004-10-13
WO2000003052A1 (en) 2000-01-20
NO20010079L (en) 2001-03-07
EP1100977A1 (en) 2001-05-23

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