CN107447151A - 一种表面高硬度的镁合金材料 - Google Patents

一种表面高硬度的镁合金材料 Download PDF

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CN107447151A
CN107447151A CN201710430643.3A CN201710430643A CN107447151A CN 107447151 A CN107447151 A CN 107447151A CN 201710430643 A CN201710430643 A CN 201710430643A CN 107447151 A CN107447151 A CN 107447151A
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magnesium
magnesium alloy
production method
temperature
high surface
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王铭君
任建军
李宵
石志纲
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FUJIAN KUNFU STOCK Co Ltd
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FUJIAN KUNFU STOCK Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C23/00Alloys based on magnesium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/02Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/02Making non-ferrous alloys by melting
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/06Making non-ferrous alloys with the use of special agents for refining or deoxidising
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C23/00Alloys based on magnesium
    • C22C23/04Alloys based on magnesium with zinc or cadmium as the next major constituent
    • 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
    • C22F1/06Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Extrusion Of Metal (AREA)

Abstract

本发明涉及一种表面高硬度的镁合金材料,以镁为基体,所述基体按照相应的生产方法均匀分布有合金材料,所述合金材料按照以下金属材料及其重量百分比组成:Cu为5.5‑6.5%、Zn为5.5‑6.5%、Mn为0.17‑0.4%、Fe≤0.05%、Ni≤0.001%、Si≤0.1%、Be为0.005‑0.012%,其余为少量不可避免杂质;所述生产方法为:(1)炼熔铸造:在坩埚里先将镁锭融化,在镁液温度600‑700℃时添加Zn、温度升到650‑750℃添加Cu,添加精炼溶剂精炼20‑40分钟,降温至630‑650℃静置20‑30分钟后添加Be,在660‑680℃铸成棒状;(2)挤压变形:在挤压机上将车皮后的镁合金铸棒挤压成板材,挤压温度为320‑380℃,挤压比在25‑38%;(3)热处理:镁合金板材在160‑180℃固溶处理20‑50小时。

Description

一种表面高硬度的镁合金材料
技术领域
本发明涉及镁合金材料领域,具体指有一种表面高硬度的镁合金材料。
背景技术
镁合金是以镁为基础加入其他元素组成的合金。其特点是:密度小(1.8g/cm3镁合金左右),比强度高,比弹性模量大,散热好,消震性好,承受冲击载荷能力比铝合金大,耐有机物和碱的腐蚀性能好。
目前普通镁合金材料抗拉强度为260MPa左右,表面硬度都在韦氏硬度8-10 之间,市场需要高强度高硬度的镁合金材料做鞋服模具,要求抗拉强度≥280,表面硬度大于等于韦氏硬度15。传统的镁合金只能添加极少量的Cu以加强镁合金的硬度,然而还是无法达到所需的要求。
针对上述的现有技术存在的问题设计一种表面高硬度的镁合金材料是本发明研究的目的。
发明内容
针对上述现有技术存在的问题,本发明在于提供一种表面高硬度的镁合金材料,能够有效解决上述现有技术存在的问题。
本发明的技术方案是:
一种表面高硬度的镁合金材料,以镁为基体,所述基体按照相应的生产方法均匀分布有合金材料,所述合金材料按照以下金属材料及其重量百分比组成:Cu为5.5-6.5%、Zn为5.5-6.5%、Mn为0.17-0.4%、Fe≤0.05%、Ni≤0.001%、Si≤0.1%、Be为0.005-0.012%,其余为少量不可避免杂质;
所述生产方法为:
(1)炼熔铸造:在坩埚里先将镁锭融化,在镁液温度600-700℃时添加Zn、温度升到650-750℃添加Cu,添加精炼溶剂精炼20-40分钟, 降温至630-650℃静置20-30分钟后添加Be,在660-680℃铸成棒状;
(2)挤压变形:在挤压机上将车皮后的镁合金铸棒挤压成板材,挤压温度为320-380℃,挤压比在25-38%;
(3)热处理:镁合金板材在160-180℃固溶处理20-50小时。
所述生产方法的步骤(1)中,在镁液温度650℃时添加Zn。
所述生产方法的步骤(1)中,温度升到700℃时添加Cu
本发明的优点:
本发明在镁合金成分上进行突破,改变以往只能添加少量的Cu,将Cu的含量增加到5.5-6.5%,配以适量的Be元素,通过相应的生产方法,使得镁合金在生产的过程中,挤压变形所需的温度比普通镁合金温度低,并且挤压后的镁合金做固溶处理,最终使得整体镁合金的韦氏硬度大于等于15、抗拉强度大于等于280。
具体实施方式
为了便于本领域技术人员理解,现将结合实施例对本发明作进一步详细描述:
实施例1
一种表面高硬度的镁合金材料,以镁为基体,所述基体按照相应的生产方法均匀分布有合金材料,所述合金材料按照以下金属材料及其重量百分比组成:Cu为6.0%、Zn为6.0%、Mn为0.25%、Fe≤0.05%、Ni≤0.001%、Si≤0.1%、Be为0.005-0.012%,其余为少量不可避免杂质;
所述生产方法为:
(1)炼熔铸造:在坩埚里先将镁锭融化,在镁液温度650℃时添加Zn、温度升到700℃添加Cu,添加精炼溶剂精炼30分钟, 降温至640℃静置30分钟后添加Be,在670℃铸成棒状;
(2)挤压变形:在挤压机上将车皮后的镁合金铸棒挤压成板材,挤压温度为350℃,挤压比在33%;
(3)热处理:镁合金板材在170℃固溶处理48小时。
根据实施例1生产的镁合金板,通过万能试验机和巴氏硬度测量仪,得到的产品抗拉强度292MPa,表面韦氏硬度15.5。
以上所述仅为本发明的较佳实施例,凡依本发明申请专利范围所做的均等变化与修饰,皆应属于本发明的涵盖范围。

Claims (3)

1.一种表面高硬度的镁合金材料,以镁为基体,其特征在于:所述基体按照相应的生产方法均匀分布有合金材料,所述合金材料按照以下金属材料及其重量百分比组成:Cu为5.5-6.5%、Zn为5.5-6.5%、Mn为0.17-0.4%、Fe≤0.05%、Ni≤0.001%、Si≤0.1%、Be为0.005-0.012%,其余为少量不可避免杂质;
所述生产方法为:
(1)炼熔铸造:在坩埚里先将镁锭融化,在镁液温度600-700℃时添加Zn、温度升到650-750℃添加Cu,添加精炼溶剂精炼20-40分钟, 降温至630-650℃静置20-30分钟后添加Be,在660-680℃铸成棒状;
(2)挤压变形:在挤压机上将车皮后的镁合金铸棒挤压成板材,挤压温度为320-380℃,挤压比在25-38%;
(3)热处理:镁合金板材在160-180℃固溶处理20-50小时。
2.根据权利要求1所述的一种表面高硬度的镁合金材料,其特征在于:所述生产方法的步骤(1)中,在镁液温度650℃时添加Zn。
3.根据权利要求1所述的一种表面高硬度的镁合金材料,其特征在于:所述生产方法的步骤(1)中,温度升到700℃时添加Cu。
CN201710430643.3A 2017-06-09 2017-06-09 一种表面高硬度的镁合金材料 Pending CN107447151A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109487137A (zh) * 2019-01-22 2019-03-19 福建坤孚股份有限公司 一种高强度高延伸率镁合金及其制备方法
CN110238195A (zh) * 2018-03-07 2019-09-17 南京理工大学 一种各向同性az31镁合金板材的轧制成形方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892565A (en) * 1973-10-01 1975-07-01 Nl Industries Inc Magnesium alloy for die casting
CN102433479A (zh) * 2011-12-28 2012-05-02 东北大学 一种具有温挤压特性的镁合金及其挤压材的制备方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892565A (en) * 1973-10-01 1975-07-01 Nl Industries Inc Magnesium alloy for die casting
CN102433479A (zh) * 2011-12-28 2012-05-02 东北大学 一种具有温挤压特性的镁合金及其挤压材的制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110238195A (zh) * 2018-03-07 2019-09-17 南京理工大学 一种各向同性az31镁合金板材的轧制成形方法
CN109487137A (zh) * 2019-01-22 2019-03-19 福建坤孚股份有限公司 一种高强度高延伸率镁合金及其制备方法

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Application publication date: 20171208