CN1670231A - Magnesium alloy - Google Patents

Magnesium alloy Download PDF

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Publication number
CN1670231A
CN1670231A CN 200410010134 CN200410010134A CN1670231A CN 1670231 A CN1670231 A CN 1670231A CN 200410010134 CN200410010134 CN 200410010134 CN 200410010134 A CN200410010134 A CN 200410010134A CN 1670231 A CN1670231 A CN 1670231A
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CN
China
Prior art keywords
magnesium alloy
kilograms
alloy
manganiferous
magnesium
Prior art date
Application number
CN 200410010134
Other languages
Chinese (zh)
Inventor
史军梅
Original Assignee
焦作市黄河镁合金有限公司
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 焦作市黄河镁合金有限公司 filed Critical 焦作市黄河镁合金有限公司
Priority to CN 200410010134 priority Critical patent/CN1670231A/en
Publication of CN1670231A publication Critical patent/CN1670231A/en

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Abstract

The invention discloses a magnesium alloy which comprises (by weight ratio) Al 6.5-7.5%, Mn 0.2-0.7%, Zn 0.4-1.0%, Si<=0.1%, Cu <=0.05%, Ni <=0.001%, Fe<=0.004%, and balancing Mg, the magnesium alloy has a average tensile strength of 280 MPa, yield strength 136 MPa, percentage of elongation 9%, compared with AZ30A magnesium alloy, because the percentage of elongation is increased substantially, the technical requirement for forging automobile wheel hubs can be met.

Description

A kind of magnesium alloy
Technical field
The present invention relates to forge the magnesium alloy that automotive hub is used.
Background technology
Because magnesium alloy has light weight, advantage such as corrosion-resistant, its purposes also more and more widely is applied in automobile industry seeking, at present in particular for making automotive hub.Stipulate according to Japanese car standard JASO C608-75 Light Alloy Disc Wheels for Automobiles (automobile light alloy disc wheel): the mechanical property of wheel material should meet tensile strength 〉=214MPa, yield strength 〉=114MPa, the requirement of unit elongation 〉=7%.In the magnesium alloy of the existing AZ80A trade mark, its chemical ingredients (weight percent) is: Al 7.8~9.2%, and Mn 0.12~0.5%, and Zn 0.2~0.8%, Si≤0.1%, Cu≤0.05%, Ni≤0.005%, Fe≤0.005%, other≤0.30%, its mechanical property is: tensile strength 290MPa, yield strength 186MPa, unit elongation 4%.As seen, the unit elongation of this magnesium alloy can not satisfy the requirement as the wheel material, occurs crackle easily in the process of forging automotive hub, and yield rate is below 50%.
Summary of the invention
The purpose of this invention is to provide a kind of magnesium alloy that can be used to forge automotive hub.
For achieving the above object, the present invention adopts following technical scheme: a kind of magnesium alloy, its chemical ingredients are (weight percent): Al 6.5~7.5%, and Mn 0.2~0.7%, Zn 0.4~1.0%, Si≤0.1%, Cu≤0.05%, Ni≤0.001%, Fe≤0.004%, surplus is Mg.
Adopt the magnesium alloy of technique scheme, its average tensile strength 280MPa, yield strength 136MPa, unit elongation 9%, compare with the AZ80A magnesium alloy, though its tensile strength and yield strength decrease, unit elongation is greatly improved, can satisfy the technical requirements of forging automotive hub, yield rate can reach more than 85%.
Embodiment
Embodiment 1: crucible is cleaned with flux, and furnace bottom spreads flux No. 2.After 700 kilograms of magnesium ingots, 20 kilograms of aluminium ingots, 50 kilograms of manganiferous master alloys, 5 kilograms of zinc ingot metals and 200 kilograms of preheatings of foundry returns, add in the crucible, heat and spread insulating covering agent, stirred after the fusing 30 minutes, put out a fire rotten back removal of contamination then with alterant, and with No. 2 flux; Add refining agent again, refining 15 minutes; At the upper, middle and lower of crucible portion sample examination, chemically examine and come out of the stove after qualified; With continuous metal cast process magnesium alloy is cast into bar, handles with fire-fighting medium in the casting cycle.Casting is carried out mechanical workout, sign to magnesium alloy rod after finishing, and puts in storage after quality inspection.In the magnesium alloy that makes like this, each chemical ingredients is (weight percent): Al 7.02%, and Mn 0.53%, and Zn 0.73%, Si≤0.1%, Cu≤0.05%, Ni≤0.001%, Fe≤0.004%.
In the above-mentioned raw material, the main component of manganiferous master alloy is manganese and aluminium, and manganiferous ratio is 10%, and foundry returns is meant the scrap stock that produce in mechanical workout, perhaps forges remaining scrap stock behind the automotive hub.
Because in the process of removal of contamination, there is part material to be eliminated, reason such as high temperature oxidation in addition, the yield rate of making magnesium alloy is generally between 94% to 95%, therefore sample examination after refining certain composition might occur and not meet the situation that alloying constituent requires, at this moment just should be according to prescription, some raw material of corresponding adding carries out melting once more, till the qualified back of chemical examination.
Embodiment 2: with 150 kilograms of 500 kilograms of magnesium ingots, 10 kilograms of aluminium ingots, 30 kilograms of manganiferous master alloys, 5 kilograms of zinc ingot metals and foundry returns, wherein manganiferous ratio is 15% in the master alloy, each chemical ingredients is (weight percent): Al 6.5% in the magnesium alloy that produces, Mn 0.7%, and Zn 0.92%, Si≤0.1%, Cu≤0.05%, Ni≤0.001%, Fe≤0.004%, its manufacturing process is identical with embodiment 1.
Embodiment 3: with 30 kilograms of 100 kilograms of magnesium ingots, 8 kilograms of aluminium ingots, 0.8 kilogram of manganiferous master alloy, 0.5 kilogram of zinc ingot metal and foundry returns, wherein manganiferous ratio is 30% in the master alloy, each chemical ingredients is (weight percent): Al 7.5% in the magnesium alloy that produces, Mn 0.2%, and Zn 0.4%, Si≤0.1%, Cu≤0.05%, Ni≤0.001%, Fe≤0.004%, its manufacturing process is identical with embodiment 1.
Embodiment 4: with 30 kilograms of 300 kilograms of magnesium ingots, 20 kilograms of aluminium ingots, 8 kilograms of manganiferous master alloys, 2 kilograms of zinc ingot metals and foundry returns, wherein manganiferous ratio is 20% in the master alloy, each chemical ingredients is (weight percent): Al 7.2% in the magnesium alloy that produces, Mn 0.52%, and Zn 0.6%, Si≤0.1%, Cu≤0.05%, Ni≤0.001%, Fe≤0.004%, its manufacturing process is identical with embodiment 1.
Embodiment 5: with 30 kilograms of 200 kilograms of magnesium ingots, 10 kilograms of aluminium ingots, 5 kilograms of manganiferous master alloys, 1.8 kilograms of zinc ingot metals and foundry returns, wherein manganiferous ratio is 25% in the master alloy, each chemical ingredients is (weight percent): Al 6.7% in the magnesium alloy that produces, Mn 0.6%, and Zn 0.81%, Si≤0.1%, Cu≤0.05%, Ni≤0.001%, Fe≤0.004%, its manufacturing process is identical with embodiment 1.

Claims (1)

1, a kind of magnesium alloy is characterized in that: its chemical ingredients is (weight percent): Al 6.5~7.5%, and Mn 0.2~0.7%, and Zn 0.4~1.0%, Si≤0.1%, and Cu≤0.05%, Ni≤0.001%, Fe≤0.004%, surplus is Mg.
CN 200410010134 2004-03-16 2004-03-16 Magnesium alloy CN1670231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200410010134 CN1670231A (en) 2004-03-16 2004-03-16 Magnesium alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200410010134 CN1670231A (en) 2004-03-16 2004-03-16 Magnesium alloy

Publications (1)

Publication Number Publication Date
CN1670231A true CN1670231A (en) 2005-09-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200410010134 CN1670231A (en) 2004-03-16 2004-03-16 Magnesium alloy

Country Status (1)

Country Link
CN (1) CN1670231A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100396807C (en) * 2006-05-17 2008-06-25 南京云海特种金属股份有限公司 Mognesium alloy
CN100447270C (en) * 2006-07-05 2008-12-31 戴祖军 Magnesium alloy auto hub and its producing method
CN102876947A (en) * 2012-09-05 2013-01-16 开平市中铝实业有限公司 Magnesium alloy, manufacturing technology and hub thereof
CN104015009A (en) * 2014-06-13 2014-09-03 广东长盈精密技术有限公司 Method for manufacturing middle frames and rear covers of mobile phones
CN104152767A (en) * 2014-08-22 2014-11-19 济南大学 High-plasticity Mg-Al-Mn-Se magnesium alloy

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100396807C (en) * 2006-05-17 2008-06-25 南京云海特种金属股份有限公司 Mognesium alloy
CN100447270C (en) * 2006-07-05 2008-12-31 戴祖军 Magnesium alloy auto hub and its producing method
CN102876947A (en) * 2012-09-05 2013-01-16 开平市中铝实业有限公司 Magnesium alloy, manufacturing technology and hub thereof
CN102876947B (en) * 2012-09-05 2015-01-28 开平市中铝实业有限公司 Magnesium alloy, manufacturing technology and hub thereof
CN104015009A (en) * 2014-06-13 2014-09-03 广东长盈精密技术有限公司 Method for manufacturing middle frames and rear covers of mobile phones
CN104152767A (en) * 2014-08-22 2014-11-19 济南大学 High-plasticity Mg-Al-Mn-Se magnesium alloy
CN104152767B (en) * 2014-08-22 2016-11-02 济南大学 A kind of high-ductility Mg-Al-Mn-Se magnesium alloy

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