EP3967784A1 - Alloy material and production process therefor - Google Patents

Alloy material and production process therefor Download PDF

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Publication number
EP3967784A1
EP3967784A1 EP20802186.5A EP20802186A EP3967784A1 EP 3967784 A1 EP3967784 A1 EP 3967784A1 EP 20802186 A EP20802186 A EP 20802186A EP 3967784 A1 EP3967784 A1 EP 3967784A1
Authority
EP
European Patent Office
Prior art keywords
alloy
alloy material
alloy liquid
content
manufacturing process
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.)
Withdrawn
Application number
EP20802186.5A
Other languages
German (de)
French (fr)
Other versions
EP3967784A4 (en
Inventor
Kuwahara YASUHIRO
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.)
Changshu Synergy Automobile Parts Co Ltd
Original Assignee
Changshu Synergy Automobile Parts Co Ltd
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
Application filed by Changshu Synergy Automobile Parts Co Ltd filed Critical Changshu Synergy Automobile Parts Co Ltd
Publication of EP3967784A1 publication Critical patent/EP3967784A1/en
Publication of EP3967784A4 publication Critical patent/EP3967784A4/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
    • 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

Definitions

  • the present invention relates to the technical field of alloy material, in particular to an alloy material and process of manufacturing same.
  • 6061-T6 is called aviation duralumin, which is light, high in strength and high in manufacturing cost. It is the abbreviation of T6 temper of 6061 aviation aluminum alloy. It has good formability, weldability and machinability; meanwhile, it has medium strength, still maintains relatively good workability after annealing. Typical applications are aviation fixtures, trucks, tower buildings, ships, pipelines and the field of other building applications that require a combination of strength, weldability and corrosion resistance. How to improve its tensile strength and yield strength to increase its application range is exactly the problem that the inventor has to solve.
  • the main purpose of the present invention is to provide an alloy material with high tensile strength and high yield strength.
  • an alloy material wherein it comprises, in mass %:
  • a manufacturing process of an alloy material wherein it comprises the following steps:
  • the melting furnace is heated up to 705-750°C at a rate of 260-280°C/h.
  • the aluminum alloy material provided by the present invention has high strength, high hardness, excellent mechanical properties, better tensile strength and yield strength, and can satisfy requirements in various applications in terms of strength, toughness, wear resistance, corrosion resistance, fatigue resistance, high temperature resistance, low temperature resistance, radiation resistance, fire resistance, explosion resistance, free cutting, free polishing, surface treatment ability, weldability, and light weight etc.
  • the process provided by the present invention is simple and reasonable, and high in manufacturing efficiency.
  • the alloy material of this solution has higher Si and Mn content, and has better tensile strength and yield strength properties.
  • the specific comparison of parameters is shown in below table: Dimensions Mechanical properties Extrusion process Aging process Tensile strength (Mpa) Yield strength (Mpa) Elongation (%) Standard Identical Identical A96010S-T6 28 ⁇ 12.2 Actual 1 411 389 21 21.7 ⁇ 12.2 Actual 2 408 379 19 22 ⁇ 12.2 Actual 3 407 391 17 28 ⁇ 12.2 Actual 4 389 374 20 A6061-T6 Standard 260 240 8 26.5 ⁇ 12.2 Actual 1 271 246 24 32.2 ⁇ 20 Actual 2 271 246 24 32 ⁇ 14.2 Actual 3 273 246 27 24 ⁇ 10.9 Actual 4 320 305 20
  • the alloy material provided by the present invention has a very great improvement in tensile strength and yield strength compared to 6061-T6.
  • a manufacturing process of an alloy material comprising
  • the melting furnace is heated up to 705-750°C at a rate of 260-280°C/h.
  • the present invention has the following advantages:
  • the aluminum alloy material provided by the present invention has high strength, high hardness, excellent mechanical properties, better tensile strength and yield strength, and can satisfy requirements in various applications in terms of strength, toughness, wear resistance, corrosion resistance, fatigue resistance, high temperature resistance, low temperature resistance, radiation resistance, fire resistance, explosion resistance, free cutting, free polishing, surface treatment ability, weldability, and light weight etc.
  • the process provided by the present invention is simple and reasonable, and high in manufacturing efficiency.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Conductive Materials (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Extrusion Of Metal (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

The present invention discloses an alloy material and a manufacturing process of its bars. The technical solution of the present invention is: an alloy material, wherein it comprises, in mass %:Si, 0.8-1.2%;Fe,0- 0.5%;Cu, 0.15-0.6%;Mn, 0.2-0.8%;Mg, 0.6-0.1%;Cr, 0-0.1%;Zn, 0-0.25%;Ti, 0-0.1%; the balance is Al∘
The Si content is 1.11%. The Mn content is 0.69%.A manufacturing process of an alloy material, wherein it comprises the following steps:(1) Weighing the raw material of each component by mass percentage;(2) Placing the raw material in a melting furnace and smelt it into an alloy liquid, until the temperature of the alloy liquid reaches 705-750°C, keeping for 45-60 minutes;(3) After the alloy liquid temperature falls to 520-580°C, add refining agent, heat up to 670-710°C, and carry out composition inspection;(4). After the alloy liquid is cooled down to 650-660°C by holding, it is poured into molds where the bars are formed by cooling. According to the solution provided by the invention, the alloy has high tensile strength and yield strength.

Description

    TECHNICAL FIELD
  • The present invention relates to the technical field of alloy material, in particular to an alloy material and process of manufacturing same.
    • BACKGROUND ART
  • 6061-T6 is called aviation duralumin, which is light, high in strength and high in manufacturing cost. It is the abbreviation of T6 temper of 6061 aviation aluminum alloy. It has good formability, weldability and machinability; meanwhile, it has medium strength, still maintains relatively good workability after annealing. Typical applications are aviation fixtures, trucks, tower buildings, ships, pipelines and the field of other building applications that require a combination of strength, weldability and corrosion resistance. How to improve its tensile strength and yield strength to increase its application range is exactly the problem that the inventor has to solve.
    • SUMMARY OF THE INVENTION
  • In view of the deficiencies in the prior art, the main purpose of the present invention is to provide an alloy material with high tensile strength and high yield strength.
  • In order to achieve the above objectives, the present invention provides the following technical solutions: an alloy material, wherein it comprises, in mass %:
    • Si, 0.8-1.2%;
    • Fe,0- 0.5%;
    • Cu, 0.15-0.6%;
    • Mn, 0.2-0.8%;
    • Mg, 0.6-0.1%;
    • Cr, 0-0.1%;
    • Zn, 0-0.25%;
    • Ti, 0-0.1%; the balance is Al.
    • Preferably, the Si content is 1.11%.
    • Preferably, the Mn content is 0.69%.
  • A manufacturing process of an alloy material, wherein it comprises the following steps:
    1. (1) Weighing the raw material of each component by mass percentage;
    2. (2) Placing the raw material in a melting furnace and smelt it into an alloy liquid, until the temperature of the alloy liquid reaches 705-750°C, keeping for 45-60 minutes;
    3. (3) After the alloy liquid temperature falls to 520-580°C, add refining agent, heat up to 670-710°C, and carry out composition inspection;
    4. (4).After the alloy liquid is cooled down to 650-660°C by holding, it is poured into molds where the bars are formed by cooling.
  • Preferably, in the step (2), the melting furnace is heated up to 705-750°C at a rate of 260-280°C/h.
  • Compared with the prior art, the present invention has the following advantages: The aluminum alloy material provided by the present invention has high strength, high hardness, excellent mechanical properties, better tensile strength and yield strength, and can satisfy requirements in various applications in terms of strength, toughness, wear resistance, corrosion resistance, fatigue resistance, high temperature resistance, low temperature resistance, radiation resistance, fire resistance, explosion resistance, free cutting, free polishing, surface treatment ability, weldability, and light weight etc. In addition, the process provided by the present invention is simple and reasonable, and high in manufacturing efficiency.
    • SPECIFIC MODE OF EXECUTION
  • The present invention is further explained below:
    • An alloy material, wherein it comprises, in mass %:
    • Si, 0.8-1.2%;
    • Fe,0- 0.5%;
    • Cu, 0.15-0.6%;
    • Mn, 0.2-0.8%;
    • Mg, 0.6-0.1%;
    • Cr, 0-0.1%;
    • Zn, 0-0.25%;
    • Ti, 0-0.1%; the balance is Al.
    • Preferably, the Si content is 1.11%
    • Preferably, the Mn content is 0.69%.
  • Compared with the 6061-T6 in the prior art, the alloy material of this solution has higher Si and Mn content, and has better tensile strength and yield strength properties. For products made in different sizes, the specific comparison of parameters is shown in below table:
    Dimensions Mechanical properties Extrusion process Aging process
    Tensile strength (Mpa) Yield strength (Mpa) Elongation (%)
    Standard Identical Identical
    A96010S-T6 28∗ 12.2 Actual 1 411 389 21
    21.7∗ 12.2 Actual 2 408 379 19
    22∗ 12.2 Actual 3 407 391 17
    28∗ 12.2 Actual 4 389 374 20
    A6061-T6 Standard 260 240 8
    26.5∗ 12.2 Actual 1 271 246 24
    32.2∗20 Actual 2 271 246 24
    32∗ 14.2 Actual 3 273 246 27
    24∗ 10.9 Actual 4 320 305 20
  • It can be seen from the above table that the alloy material provided by the present invention has a very great improvement in tensile strength and yield strength compared to 6061-T6.
  • A manufacturing process of an alloy material, comprising
    1. (1) Weighing the raw material of each component by mass percentage;
    2. (2) Placing the raw material in a melting furnace and smelt it into an alloy liquid, until the temperature of the alloy liquid reaches 705-750°C, keeping for 45-60 minutes;
    3. (3) After the alloy liquid temperature falls to 520-580°C, add refining agent, heat up to 670-710°C, and carry out composition inspection;
    4. (4).After the alloy liquid is cooled down to 650-660°C by holding, it is poured into molds where the bars are formed by cooling.
  • Preferably, in the step (2), the melting furnace is heated up to 705-750°C at a rate of 260-280°C/h.
  • The present invention has the following advantages: The aluminum alloy material provided by the present invention has high strength, high hardness, excellent mechanical properties, better tensile strength and yield strength, and can satisfy requirements in various applications in terms of strength, toughness, wear resistance, corrosion resistance, fatigue resistance, high temperature resistance, low temperature resistance, radiation resistance, fire resistance, explosion resistance, free cutting, free polishing, surface treatment ability, weldability, and light weight etc. In addition, the process provided by the present invention is simple and reasonable, and high in manufacturing efficiency.
  • The above is only the preferred embodiment of the present invention, and the protection scope of the invention is not limited to the above embodiment. All technical solutions under the idea of the invention are within the protection scope of the invention. It should be pointed out that improvements and refinements without departing from the principle of the invention should also be regarded as the protection scope of the invention for ordinary technicians in the technical field.

Claims (5)

  1. An alloy material, wherein it comprises, in mass %:
    Si, 0.8-1.2%;
    Fe,0- 0.5%;
    Cu, 0.15-0.6%;
    Mn, 0.2-0.8%;
    Mg, 0.6-0.1%;
    Cr, 0-0.1%;
    Zn, 0-0.25%;
    Ti, 0-0.1%; the balance is Al.
  2. An alloy material according to claim 1, wherein the Si content is 1.11%.
  3. An alloy material according to claim 1, wherein the Mn content is 0.69%.
  4. A manufacturing process of an alloy material, wherein it comprises the following steps:
    (1) Weighing the raw material of each component by mass percentage;
    (2) Placing the raw material in a melting furnace and smelt it into an alloy liquid, until the temperature of the alloy liquid reaches 705-750°C, keeping for 45-60 minutes;
    (3) After the alloy liquid temperature falls to 520-580°C, add refining agent, heat up to 670-710°C, and carry out composition inspection;
    (4).After the alloy liquid is cooled down to 650-660°C by holding, it is poured into molds where the bars are formed by cooling.
  5. A manufacturing process of an alloy material according to claim 4, wherein: in the step (2), the melting furnace is heated up to 705-750°C at a rate of 260-280°C/h.
EP20802186.5A 2019-05-08 2020-05-07 Alloy material and production process therefor Withdrawn EP3967784A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910380080.0A CN110079709A (en) 2019-05-08 2019-05-08 A kind of alloy material and its production technology
PCT/CN2020/089072 WO2020224627A1 (en) 2019-05-08 2020-05-07 Alloy material and production process therefor

Publications (2)

Publication Number Publication Date
EP3967784A1 true EP3967784A1 (en) 2022-03-16
EP3967784A4 EP3967784A4 (en) 2022-08-10

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EP20802186.5A Withdrawn EP3967784A4 (en) 2019-05-08 2020-05-07 Alloy material and production process therefor

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US (1) US20210340649A1 (en)
EP (1) EP3967784A4 (en)
JP (1) JP2022512995A (en)
CN (1) CN110079709A (en)
WO (1) WO2020224627A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110079709A (en) * 2019-05-08 2019-08-02 常熟希那基汽车零件有限公司 A kind of alloy material and its production technology
CN112921207A (en) * 2019-12-06 2021-06-08 湖南创安防爆电器有限公司 Barrier explosion-proof material
CN114855013B (en) * 2022-05-30 2023-02-28 栋梁铝业有限公司 Method for quickly extruding and forming aluminum alloy at low temperature and application thereof

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JP2000282163A (en) * 1999-03-30 2000-10-10 Kobe Steel Ltd Al-Mg-Si ALLOY SHEET EXCELLENT IN BULGE FORMABILITY AND BENDABILITY
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CN102776423A (en) * 2011-05-12 2012-11-14 张家港市金邦铝业有限公司 Aluminum alloy
WO2014003074A1 (en) * 2012-06-27 2014-01-03 株式会社Uacj Aluminum alloy sheet for blow molding and production method therefor
RU2699496C2 (en) * 2015-01-12 2019-09-05 Новелис Инк. Automotive aluminium sheet of high formability with reduced or absent surface furrow and method for production thereof
JP2018070947A (en) * 2016-10-28 2018-05-10 株式会社神戸製鋼所 Aluminum alloy sheet
CN106967894A (en) * 2017-04-13 2017-07-21 广西大学 A kind of 6010 aluminum alloy melt casting techniques
CN108425046B (en) * 2018-03-28 2020-07-28 广西南南铝加工有限公司 Aluminum alloy for anodic oxidation and preparation method thereof
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CN110079709A (en) * 2019-05-08 2019-08-02 常熟希那基汽车零件有限公司 A kind of alloy material and its production technology

Also Published As

Publication number Publication date
EP3967784A4 (en) 2022-08-10
US20210340649A1 (en) 2021-11-04
WO2020224627A1 (en) 2020-11-12
CN110079709A (en) 2019-08-02
JP2022512995A (en) 2022-02-07

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