WO2021179835A1 - Alliage de magnésium ininflammable et son procédé de préparation - Google Patents

Alliage de magnésium ininflammable et son procédé de préparation Download PDF

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Publication number
WO2021179835A1
WO2021179835A1 PCT/CN2021/074274 CN2021074274W WO2021179835A1 WO 2021179835 A1 WO2021179835 A1 WO 2021179835A1 CN 2021074274 W CN2021074274 W CN 2021074274W WO 2021179835 A1 WO2021179835 A1 WO 2021179835A1
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WIPO (PCT)
Prior art keywords
magnesium alloy
flame
yttrium
calcium
resistant magnesium
Prior art date
Application number
PCT/CN2021/074274
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English (en)
Chinese (zh)
Inventor
游国强
李卫荣
姚繁锦
汤铁装
曹韩学
陈学民
龙思远
徐海章
邓群辉
曾超辉
Original Assignee
东莞宜安科技股份有限公司
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Application filed by 东莞宜安科技股份有限公司 filed Critical 东莞宜安科技股份有限公司
Publication of WO2021179835A1 publication Critical patent/WO2021179835A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C23/00—Alloys based on magnesium
    • C22C23/02—Alloys based on magnesium with aluminium 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
    • C22C1/02—Making non-ferrous alloys by melting
    • 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
    • C22C1/03—Making non-ferrous alloys by melting using master alloys

Definitions

  • the invention relates to the field of magnesium-based alloys and alloying, in particular to a flame-resistant magnesium alloy and a preparation method thereof.
  • magnesium alloy As the lightest engineering metal material, magnesium alloy is known as the "green engineering material of the 21st century". Compared with traditional materials, its performance advantages are mainly manifested in light weight, high damping, anti-electromagnetic interference and easy recycling. And so on, has been widely used in aerospace, electronic communications, rail transit and other fields.
  • Tan et al. added a trace amount (60 ppm) of Be to AZ91 alloy, and the effect of improving its oxidation resistance was very significant.
  • Beryllium compounds such as beryllium oxide, beryllium fluoride, beryllium chloride, beryllium nitrate, etc.
  • beryllium compounds are more toxic
  • soluble beryllium compounds can cause organ or tissue lesions and cause cancer.
  • the list of carcinogens published by the World Health Organization lists beryllium as a class of carcinogens. Therefore, the industrial application prospects of Be are not promising.
  • CN101512027A discloses a high-strength flame-retardant magnesium alloy in which at least one substance selected from the group consisting of carbon, aluminum, niobium, silicon, tungsten, aluminum oxide, magnesium silicide and silicon carbide is added to a small piece of magnesium alloy, and at the same time Containing 0.5% calcium, a flame-retardant magnesium alloy is manufactured through molding, sintering and plastic processing. When it is applied to solder, it has high solderability. However, the process is complicated, the processing flow is many, and the production cost is obviously increased.
  • CN106435316A discloses a method for casting a flame-retardant magnesium neodymium magnesium alloy and its sand castings.
  • the components and their weight percentages in the magnesium alloy are: Zn 0.2-0.7%, Zr 0.4-1.0%, Nd 2.0- 2.8%, Ce 0 ⁇ 3.0%, La 0 ⁇ 3.0%, Mg is the balance.
  • One of the objectives of the present invention is to provide a flame-resistant magnesium alloy, which not only has good flame-resistant performance, but also has good die-casting process performance, and is suitable for die-casting production.
  • the second objective of the present invention is to provide a method for preparing the above-mentioned flame-resistant magnesium alloy.
  • the present invention provides a flame-resistant magnesium alloy.
  • a certain amount of calcium and yttrium are added by the method of smelting metallurgy.
  • the flame-resistant magnesium alloy of the present application introduces calcium and yttrium elements, which can significantly increase the ignition point of the magnesium alloy and improve the high-temperature oxidation resistance of the magnesium alloy, thereby having better flame resistance performance. And through the synergistic effect of calcium element and yttrium element, the flame-resistant performance of flame-resistant magnesium alloy is effectively improved.
  • the flame-resistant magnesium alloy of the present application has excellent die-casting processability and low cost, which further expands the application range of magnesium alloys.
  • the flame-resistant magnesium alloy has advantages in products such as battery pack shells for new energy vehicles.
  • the contents of the calcium element and the yttrium element are respectively: 0.8-1.2 wt% of calcium and 0.5-1.5 wt% of yttrium.
  • the calcium element is added in the form of one or a mixture of elemental metal calcium and magnesium-calcium intermediate alloy.
  • the added form of the yttrium element is one or a mixture of elementary metal yttrium and a magnesium-yttrium master alloy.
  • the die-cast magnesium alloy may be, but not limited to, AM60 magnesium alloy or AM50 magnesium alloy.
  • this application also provides a method for preparing a flame-resistant magnesium alloy, the preparation steps of which are:
  • the content of calcium is 0.8-1.2 wt%, and the content of yttrium is 0.5-1.5 wt%.
  • the preheating temperature of the smelting resistance furnace is 300°C, and the preheating temperature of the charge is 150°C.
  • the smelting temperature is 700-720°C, and stirring is performed during the smelting process, so that the calcium element and the yttrium element are fully melted and uniformly distributed in the magnesium liquid.
  • the refining and slag removal adopts air blowing refining and filtering, and no flux is used to prevent the flux from reacting with the yttrium element.
  • the calcium-containing substance is one or a mixture of elemental metal calcium and magnesium-calcium intermediate alloy.
  • the yttrium-containing substance is one or a mixture of elementary metal yttrium and magnesium-yttrium master alloy.
  • the invention can significantly increase the ignition point of die-cast magnesium alloy, improve the high-temperature oxidation resistance of magnesium alloy, thereby improve the flame resistance performance, and reduce the application range of magnesium alloy Expand further.
  • the preparation steps are as follows:
  • the preheating temperature of the smelting resistance furnace is 300°C, and the preheating temperature of the charge is 150°C;
  • the method is air blowing refining and filtering, the smelting temperature is 700 °C, stirring during the smelting process so that the calcium and yttrium are fully melted and evenly distributed in the magnesium liquid;
  • the preparation method of the flame-resistant magnesium alloy of Examples 2-6 is basically the same as that of Example 1, and the difference lies in the composition and content of each example. The specific differences are shown in Table 1.
  • the preparation method of the flame-resistant magnesium alloy in this comparative example is basically the same as that of Example 1, with the difference that: the comparative example 1 does not contain elemental metal calcium and elemental metal yttrium. Please refer to Table 1 for details.
  • the preparation method of the flame-resistant magnesium alloy in this comparative example is basically the same as that of Example 1, except that the elementary metal yttrium is not contained in this comparative example 2, please refer to Table 1 for details.
  • the preparation method of the flame-resistant magnesium alloy in this comparative example is basically the same as that of Example 1, with the difference that: this comparative example 3 does not contain elemental metal yttrium. Please refer to Table 1 for details.
  • the flame-resistant magnesium alloys in Examples 1-6 of the present application have better flame-resistant performance than Comparative Examples 1-3, mainly because the flame-resistant magnesium alloys of the present application incorporate calcium and yttrium. Element, and through the synergistic effect of calcium element and yttrium element, it effectively improves the flame resistance of flame-resistant magnesium alloy.
  • the flame-resistant magnesium alloy of the present application has excellent die-casting processability and low cost, which further expands the application range of magnesium alloy.
  • the flame-resistant magnesium alloy has advantages in products such as battery pack shells for new energy vehicles.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

La présente invention concerne un alliage de magnésium ininflammable et son procédé de préparation se rapportant aux domaines des alliages à base de magnésium et aux processus d'alliage. Selon l'alliage de magnésium, une certaine quantité de calcium et d'yttrium est ajoutée à l'aide d'un procédé de fusion métallurgique sur la base d'une coulée sous pression de l'alliage de magnésium. Le procédé de préparation de l'alliage de magnésium comprend : la préparation des matériaux, le préchauffage, l'alimentation, la fusion, le raffinage et l'élimination des scories, la scorification et la coulée sous pression. Tout en maintenant une excellente aptitude à la fabrication par coulée sous pression et un faible coût d'un alliage de magnésium coulé sous pression, un point d'allumage de l'alliage de magnésium coulé sous pression peut être considérablement augmenté, et la résistance à l'oxydation à haute température de l'alliage de magnésium est améliorée, de sorte que la résistance à la flamme est améliorée et qu'un éventail d'applications de l'alliage de magnésium est davantage étendu.
PCT/CN2021/074274 2020-03-10 2021-01-29 Alliage de magnésium ininflammable et son procédé de préparation WO2021179835A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010162678.5 2020-03-10
CN202010162678.5A CN111254334B (zh) 2020-03-10 2020-03-10 一种抗燃镁合金及其制备方法

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WO2021179835A1 true WO2021179835A1 (fr) 2021-09-16

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WO (1) WO2021179835A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115572873A (zh) * 2022-11-07 2023-01-06 厦门大学 耐蚀am60基改性镁合金及其制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111254334B (zh) * 2020-03-10 2022-03-29 东莞宜安科技股份有限公司 一种抗燃镁合金及其制备方法
CN113373398B (zh) * 2021-06-24 2023-04-28 重庆大学 一种阻燃镁合金部件

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101037753A (zh) * 2007-04-19 2007-09-19 沈阳工业大学 一种高强度耐热压铸镁合金及其制备方法
JP2010036221A (ja) * 2008-08-06 2010-02-18 National Institute Of Advanced Industrial & Technology 難燃性マグネシウム合金溶加材
CN102061415A (zh) * 2011-01-19 2011-05-18 创金美科技（深圳）有限公司 一种抗热裂高流动性压铸镁合金
CN102712969A (zh) * 2010-10-05 2012-10-03 韩国机械研究院 具有出色机械性能的不可燃镁合金及其制备方法
CN102753715A (zh) * 2011-01-11 2012-10-24 韩国机械研究院 具有出色的抗引燃性和机械性能的镁合金及其制造方法
CN102899545A (zh) * 2012-10-17 2013-01-30 创金美科技（深圳）有限公司 一种稀土镁合金及其制备方法
CN103468987A (zh) * 2013-09-10 2013-12-25 河北工业大学 一种阻燃镁合金的制备方法
CN103526092A (zh) * 2013-09-16 2014-01-22 上海交通大学 新型阻燃变形镁合金及其制备方法
CN108048720A (zh) * 2017-12-05 2018-05-18 上海航天精密机械研究所 一种添加钇、钙的阻燃镁合金及其制备方法
CN108315621A (zh) * 2018-01-08 2018-07-24 上海交通大学 一种阻燃镁合金半固态流变压铸成形方法
CN108385006A (zh) * 2018-03-19 2018-08-10 山西瑞格金属新材料有限公司 高强度阻燃压铸镁合金及其制备方法
WO2018177168A1 (fr) * 2017-04-01 2018-10-04 比亚迪股份有限公司 Alliage de magnésium, procédés de préparation et de moulage de cet alliage, et élément en alliage de magnésium
CN109536798A (zh) * 2017-09-22 2019-03-29 比亚迪股份有限公司 一种阻燃镁合金及其制备方法和应用
CN111254334A (zh) * 2020-03-10 2020-06-09 东莞宜安科技股份有限公司 一种抗燃镁合金及其制备方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109881063B (zh) * 2019-04-17 2021-03-19 上海交通大学 一种高强韧高模量压铸镁合金及其制备方法

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101037753A (zh) * 2007-04-19 2007-09-19 沈阳工业大学 一种高强度耐热压铸镁合金及其制备方法
JP2010036221A (ja) * 2008-08-06 2010-02-18 National Institute Of Advanced Industrial & Technology 難燃性マグネシウム合金溶加材
CN102712969A (zh) * 2010-10-05 2012-10-03 韩国机械研究院 具有出色机械性能的不可燃镁合金及其制备方法
CN102753715A (zh) * 2011-01-11 2012-10-24 韩国机械研究院 具有出色的抗引燃性和机械性能的镁合金及其制造方法
CN102061415A (zh) * 2011-01-19 2011-05-18 创金美科技（深圳）有限公司 一种抗热裂高流动性压铸镁合金
CN102899545A (zh) * 2012-10-17 2013-01-30 创金美科技（深圳）有限公司 一种稀土镁合金及其制备方法
CN103468987A (zh) * 2013-09-10 2013-12-25 河北工业大学 一种阻燃镁合金的制备方法
CN103526092A (zh) * 2013-09-16 2014-01-22 上海交通大学 新型阻燃变形镁合金及其制备方法
WO2018177168A1 (fr) * 2017-04-01 2018-10-04 比亚迪股份有限公司 Alliage de magnésium, procédés de préparation et de moulage de cet alliage, et élément en alliage de magnésium
CN109536798A (zh) * 2017-09-22 2019-03-29 比亚迪股份有限公司 一种阻燃镁合金及其制备方法和应用
CN108048720A (zh) * 2017-12-05 2018-05-18 上海航天精密机械研究所 一种添加钇、钙的阻燃镁合金及其制备方法
CN108315621A (zh) * 2018-01-08 2018-07-24 上海交通大学 一种阻燃镁合金半固态流变压铸成形方法
CN108385006A (zh) * 2018-03-19 2018-08-10 山西瑞格金属新材料有限公司 高强度阻燃压铸镁合金及其制备方法
CN111254334A (zh) * 2020-03-10 2020-06-09 东莞宜安科技股份有限公司 一种抗燃镁合金及其制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115572873A (zh) * 2022-11-07 2023-01-06 厦门大学 耐蚀am60基改性镁合金及其制备方法

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