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CN104593703A - 2024铝合金薄板的热处理工艺 - Google Patents

2024铝合金薄板的热处理工艺 Download PDF

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Publication number
CN104593703A
CN104593703A CN201310535058.1A CN201310535058A CN104593703A CN 104593703 A CN104593703 A CN 104593703A CN 201310535058 A CN201310535058 A CN 201310535058A CN 104593703 A CN104593703 A CN 104593703A
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China
Prior art keywords
heat treatment
aluminum alloy
thin plates
alloy thin
treatment technology
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CN201310535058.1A
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Inventor
刘占向
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Qingdao Qili Steel Casting Co Ltd
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Qingdao Qili Steel Casting Co Ltd
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Priority to CN201310535058.1A priority Critical patent/CN104593703A/zh
Publication of CN104593703A publication Critical patent/CN104593703A/zh
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/002Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

本发明公开了一种2024铝合金薄板的热处理工艺,通过改变热处理的工艺参数,最优工艺参数为498℃固溶20min+185℃时效10h;这一方法克服了现有技术制备6061铝合金,拉伸性能、晶间腐蚀不合格的情况;导致原材料不能入库或零件报废,以影响到公司的生产进度;优化后的热处理工艺明显提高了其力学性能、抗腐蚀性能和疲劳性能。

Description

2024铝合金薄板的热处理工艺
 
技术领域
本发明属于铸造技术领域,具体涉及一种2024铝合金薄板的热处理工艺。
 
背景技术
2024铝合金是硬铝的一种,是美国40年代研制的材料,Cu和Mg是2024铝合金中主要的合金元素。2024铝合金薄板在原材料试验和零件生产过程中,采用现行的热处理工艺处理后常发生拉伸性能、晶间腐蚀不合格的情况。导致原材料不能入库或零件报废,以影响到公司的生产进度。
 
发明内容
为了克服现有技术领域存在的上述技术问题,本发明的目的在于,提供一种2024铝合金薄板的热处理工艺,可直接铸造出抗拉强度和屈服强度显著提高的2024合金。
本发明提供的2024铝合金薄板的热处理工艺,包括以下步骤:
(1)选用板厚为1.5mm或2.0mm规格的2024铝合金包铝板材,用箱式空气循环电阻炉进行热处理,热处理的工艺参数如下:固溶温度为490℃~500℃,固溶保温时间为20min~50min,在160℃~200℃时效保温6h~12h;
(2)合金固溶加热后从电阻炉中取出迅速水淬以保持其组织,再进行人工时效,时效完成后空冷至室温,得到热处理态合金。
本发明提供的2024铝合金薄板的热处理工艺,其有益效果在于,克服了采用现行的热处理工艺处理后常发生拉伸性能、晶间腐蚀不合格的情况;使其力学性能、抗腐蚀性能和疲劳性能都有了显著的提高。
 
具体实施方式
下面结合一个实施例,对本发明提供的2024铝合金薄板的热处理工艺进行详细的说明。
实施例
本实施例的2024铝合金薄板的热处理工艺,包括以下步骤:
(1)选用板厚为2.0mm规格的2024铝合金包铝板材,用箱式空气循环电阻炉进行热处理,热处理的工艺参数如下:固溶温度为498℃,固溶保温时间为20min~50min,在185℃时效保温10h;
(2)合金固溶加热后从电阻炉中取出迅速水淬以保持其组织,再进行人工时效,时效完成后空冷至室温,得到热处理态合金。
经过热处理的2024铝合金薄板,其力学性能、抗腐蚀性能和疲劳性能都有了显著的提高。

Claims (1)

1.一种2024铝合金薄板的热处理工艺,其特征在于:包括以下步骤:
(1)选用板厚为1.5-2.0mm规格的2024铝合金包铝板材,用箱式空气循环电阻炉进行热处理,热处理的工艺参数如下:固溶温度为490℃~500℃,固溶保温时间为20min~50min,在160℃~200℃时效保温6h~12h;
(2)合金固溶加热后从电阻炉中取出迅速水淬以保持其组织,再进行人工时效,时效完成后空冷至室温,得到热处理态合金。
CN201310535058.1A 2013-11-04 2013-11-04 2024铝合金薄板的热处理工艺 Pending CN104593703A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109332696A (zh) * 2018-11-14 2019-02-15 西安航天发动机有限公司 一种2024铝合金激光选区熔化成形方法
US11255008B2 (en) 2019-06-17 2022-02-22 Central South University Method for processing highly alloyed aluminum alloy sheet with high rolling yield

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109332696A (zh) * 2018-11-14 2019-02-15 西安航天发动机有限公司 一种2024铝合金激光选区熔化成形方法
US11255008B2 (en) 2019-06-17 2022-02-22 Central South University Method for processing highly alloyed aluminum alloy sheet with high rolling yield

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