JPH06293944A - Production of magnesium alloy sheet excellent in press formability - Google Patents
Production of magnesium alloy sheet excellent in press formabilityInfo
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- JPH06293944A JPH06293944A JP7965393A JP7965393A JPH06293944A JP H06293944 A JPH06293944 A JP H06293944A JP 7965393 A JP7965393 A JP 7965393A JP 7965393 A JP7965393 A JP 7965393A JP H06293944 A JPH06293944 A JP H06293944A
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- rolling
- magnesium alloy
- press formability
- alloy
- magnesium
- Prior art date
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車車体および部
品、あるいは電気、電子機器の筐体などの製造に特に適
した、優れたプレス成形性を有する成形加工用マグネシ
ウム合金薄板の製造法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a magnesium alloy thin plate for forming having excellent press formability, which is particularly suitable for producing automobile bodies and parts, or casings for electric and electronic devices. Is.
【０００２】[0002]
【従来の技術】近年、地球環境問題に端を発し、自動車
の燃費改善の検討が各自動車メーカーで積極的に進めら
れている。燃費の改善には車体の軽量化が最も有効であ
り、マグネシウム合金等の軽金属を自動車車体および部
品に採用する気運も高まってきている。また、電気、電
子機器についても携帯性等の観点から軽量化が積極的に
進められている。2. Description of the Related Art In recent years, automobile manufacturers have been actively studying ways to improve the fuel efficiency of automobiles, starting from global environmental problems. The most effective way to improve fuel efficiency is to reduce the weight of the vehicle body, and the use of light metals such as magnesium alloys for automobile bodies and parts is increasing. In addition, the weight of electric and electronic devices is being actively reduced from the viewpoint of portability.
【０００３】マグネシウムは、実用金属中で最も密度が
小さく、機械的強度に優れていることから、軽量化に最
適な金属材料であるが、ダイキャスト製品が自動車部品
として僅かに用いられているだけで、薄板材が使用され
ることはほとんどなかった。この原因の一つとして、プ
レス成形性が劣ることが挙げられる。金属がプレス加工
等により塑性変形するためには、ある定まった結晶方向
にずれる辷り変形が生じることが必要である。マグネシ
ウムの結晶構造は、稠密六方晶で、底面、柱面、錐面の
３種の辷り系があるが、常温では底面辷りしか起こらな
いため、プレス成形はほとんど不可能である。高温にな
ると他の辷り系が働くようになり、一般的には２２５℃
以上の高温でプレス成形加工が可能になるといわれてい
る。[0003] Magnesium is the most suitable metal material for weight reduction because it has the lowest density and excellent mechanical strength among practical metals, but die-cast products are only slightly used as automobile parts. Therefore, thin plate materials were rarely used. One of the causes is that press formability is poor. In order for a metal to be plastically deformed by press working or the like, it is necessary that a slip deformation that deviates in a certain crystallographic direction occurs. The crystal structure of magnesium is a dense hexagonal crystal, and there are three types of wandering systems: bottom face, column face, and cone face. However, at room temperature, only the bottom wandering occurs, so press molding is almost impossible. When the temperature rises, other snags come into play, generally 225 ° C.
It is said that press molding can be performed at the above high temperatures.
【０００４】しかしながら、代表的なマグネシウム合金
薄板であるＪＩＳ規格のＭＰ１（３％Ａｌ−１％Ｚｎ−
Ｍｇ）およびＭＰ７（２％Ａｌ−１％Ｚｎ−Ｍｇ）の場
合、２２５℃でプレス加工を行っても成形性は、鉄やア
ルミニウム合金に比べて劣っており、複雑な形状に成形
することは困難である。なお、プレス温度を高めると加
工性は向上するが、表面が酸化してしまうという問題が
生じる。これに対し、プレス成形性を抜本的に改善する
目的で、リチウムを約１４％添加して結晶構造を稠密六
方晶から変形の容易な体心立方晶に変化させた合金が、
ＡＳＴＭ規格のＬＡ１４１Ａとして知られている。この
合金はプレス成形性に優れているが、リチウムという極
めて活性な金属を使用するため、工業的に大量に取り扱
うには安全上問題があるばかりでなく、コスト的にも問
題がある。However, MP1 (3% Al-1% Zn-) of JIS standard, which is a typical magnesium alloy thin plate, is used.
In the case of Mg) and MP7 (2% Al-1% Zn-Mg), the formability is inferior to that of iron or aluminum alloy even when the press working is performed at 225 ° C, and it is difficult to form into a complicated shape. Have difficulty. Although the workability is improved by increasing the pressing temperature, there is a problem that the surface is oxidized. On the other hand, for the purpose of drastically improving press formability, an alloy in which about 14% of lithium is added to change the crystal structure from a dense hexagonal crystal to a body-centered cubic crystal that is easily deformed,
Known as ASTM standard LA141A. This alloy is excellent in press formability, but since it uses an extremely active metal such as lithium, it is not only a safety problem to handle a large amount industrially, but also a cost problem.
【０００５】本発明に関わるマグネシウム合金の特徴
は、希土類金属を添加したことにある。マグネシウム合
金に希土類金属を添加することは一般的に行われてお
り、例えばＡＳＴＭ規格のＥＺ３３Ａには耐熱性を向上
させる目的で、希土類金属が約３％添加されている。し
かしながら、この合金は鋳物用であって、圧延加工はで
きない。展伸用合金としては、希土類金属を約０．２％
添加した合金がＡＳＴＭ規格のＺＥ１０Ａとして知られ
ているが、これは溶接性を改善したマグネシウム合金で
ある。また、特公昭４１−１１９６１号公報には、亜鉛
１．５〜３．２５％、希土類金属０．７〜１．５％、ジ
ルコニウム０．０５〜０．８％を含有する機械的強さが
改善されたマグネシウム基合金が開示されているが、こ
の合金は熱間押出用合金であって、薄板製造を念頭に置
いた合金ではない。以上述べたように、プレス成形性の
改善を目的として希土類金属を添加したマグネシウム合
金薄板はこれまで知られていない。A characteristic of the magnesium alloy according to the present invention is that a rare earth metal is added. It is common practice to add rare earth metals to magnesium alloys. For example, ASTM standard EZ33A contains about 3% of rare earth metals for the purpose of improving heat resistance. However, this alloy is for castings and cannot be rolled. Approximately 0.2% rare earth metal as wrought alloy
The added alloy is known as ASTM standard ZE10A, which is a magnesium alloy with improved weldability. Further, JP-B-41-11961 discloses that the mechanical strength containing 1.5 to 3.25% zinc, 0.7 to 1.5% rare earth metal, and 0.05 to 0.8% zirconium. Although an improved magnesium-based alloy is disclosed, this alloy is a hot-extrusion alloy, not one with sheet manufacturing in mind. As described above, a magnesium alloy thin plate added with a rare earth metal for the purpose of improving press formability has not been known so far.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、マグネシウ
ム合金薄板における、上述のような問題点を解決するた
めになされたものであって、軽量で機械的強度に優れて
いるというマグネシウム合金の特徴を損なうことなく、
温間プレス成形性を向上させた、具体的には表面酸化が
実用上問題にならない温度、すなわち２００℃における
限界絞り比（ＬＤＲ）が３．０以上で、深絞り性の良好
なアルミキルド鋼板に匹敵するプレス成形性を持つ、自
動車車体および部品、あるいは電気、電子機器の筐体の
製造に好適なマグネシウム合金薄板を提供するものであ
る。DISCLOSURE OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems in a magnesium alloy thin plate, and is a feature of the magnesium alloy that is lightweight and has excellent mechanical strength. Without compromising
An aluminum-killed steel sheet with improved warm press formability, specifically, a temperature at which surface oxidation does not pose a practical problem, that is, a limit drawing ratio (LDR) at 200 ° C of 3.0 or more and good deep drawability. It is intended to provide a magnesium alloy thin plate having a comparable press formability and suitable for manufacturing automobile bodies and parts, or housings for electric and electronic devices.
【０００７】[0007]
【課題を解決するための手段】前述のような課題を解決
するため、本発明者等は、添加元素および圧延工程の検
討を詳細に行い、本発明を完成させるに至った。具体的
には、希土類金属０．５〜１．５％、ジルコニウム０．
１〜０．６％、亜鉛２．０〜４．０％を含有し、残部が
実質的にマグネシウムからなる合金を溶解、鋳造し、そ
の鋳塊を熱間圧延した後、１８０〜２３０℃の温度範囲
で総圧下率４０〜７０％の温間圧延を加えることを特徴
とする、プレス成形性に優れたマグネシウム合金薄板の
製造方法である。In order to solve the above-mentioned problems, the inventors of the present invention have studied the additive elements and the rolling process in detail, and have completed the present invention. Specifically, the rare earth metal is 0.5 to 1.5%, zirconium is 0.
After melting and casting an alloy containing 1 to 0.6% and zinc 2.0 to 4.0% and the balance substantially consisting of magnesium, hot rolling the ingot, A method for producing a magnesium alloy thin plate excellent in press formability, which comprises performing warm rolling with a total reduction of 40 to 70% in a temperature range.
【０００８】本発明の合金を製造するのに適した希土類
金属は、市販のいわゆるミッシュメタルでよい。ミッシ
ュメタルは、原鉱石の産地によっても異なるが、Ｃｅが
約半量で残りが主としてＬａ，Ｎｄ，Ｐｒからなり、価
格が比較的安く入手しやすいことから本発明合金の製造
には好適である。The rare earth metals suitable for making the alloys of the present invention may be so-called misch metals which are commercially available. Although it depends on the place of origin of the ore, the misch metal is suitable for the production of the alloy of the present invention because the amount of Ce is about half and the balance is mainly La, Nd, and Pr, and the price is relatively low and easily available.
【０００９】以下、本発明を詳細に説明する。先ず、合
金成分の添加理由と成分範囲の限定理由について説明す
る。希土類金属は、本発明の目的であるマグネシウム合
金薄板のプレス成形性を高めるのに必須の成分であり、
０．５％以上の含有によって、その添加量に見合った効
果を得ることができる。しかしながら、１．５％を超え
て過剰に添加した場合は、高温における強度が高くなり
すぎるため、プレス成形性は逆に低下してしまう。この
ため希土類金属の添加量は、０．５〜１．５％とする。The present invention will be described in detail below. First, the reason for adding the alloy components and the reason for limiting the component range will be described. The rare earth metal is an essential component for enhancing the press formability of the magnesium alloy thin plate which is the object of the present invention,
When the content is 0.5% or more, the effect corresponding to the added amount can be obtained. However, if it is added excessively in excess of 1.5%, the strength at high temperature becomes too high, so that the press formability deteriorates. Therefore, the amount of rare earth metal added is 0.5 to 1.5%.
【００１０】亜鉛は、機械的強度を高めるのに有効な元
素であるばかりか、希土類金属を添加した合金の熱間お
よび温間圧延を可能ならしめるために適量必要な成分で
ある。亜鉛と希土類金属がマグシネウム中に共存する
と、三者の複合化合物となって、結晶粒界に析出する。
この化合物は比較的延性があり、圧延時に割れ発生源と
なることはない。一方、亜鉛を添加せずに希土類金属を
添加すると、希土類金属とマグネシウムの化合物が結晶
粒界に析出する。この化合物は硬く脆いため、熱間圧延
割れの原因となる。しかしながら、亜鉛を過剰に添加し
た場合も脆弱な化合物が生成し圧延が困難となる。この
ため亜鉛の添加量は、２．０〜４．０％とする。Zinc is an element effective not only for increasing the mechanical strength but also a necessary amount of a component for enabling hot and warm rolling of alloys containing rare earth metals. When zinc and a rare earth metal coexist in magnesium, they form a ternary complex compound and precipitate at the grain boundaries.
This compound is relatively ductile and does not become a crack generation source during rolling. On the other hand, when the rare earth metal is added without adding zinc, the compound of the rare earth metal and magnesium is precipitated at the crystal grain boundary. Since this compound is hard and brittle, it causes hot rolling cracks. However, when zinc is added excessively, a brittle compound is formed and rolling becomes difficult. Therefore, the amount of zinc added is 2.0 to 4.0%.
【００１１】ジルコニウムは、鋳塊の結晶粒を微細化す
る作用を持つ。鋳塊の結晶粒が細かいほど圧延後の結晶
粒も細かくなり、プレス成形性が向上する。更に、結晶
粒が微細化するとマグネシウム合金薄板の機械的強度お
よび靭性は向上する。結晶粒を微細化するには適正な添
加範囲があり、ジルコニウムが０．１％未満では微細化
の効果は得られない。また、０．６％以上を超えて過剰
に添加しても合金中に溶解せずに沈殿してしまい、機械
的強度、靭性に悪影響を及ぼす。Zirconium has the function of refining the crystal grains of the ingot. The finer the crystal grains of the ingot, the finer the crystal grains after rolling, and the press formability is improved. Further, when the crystal grains are refined, the mechanical strength and toughness of the magnesium alloy thin plate are improved. There is a proper addition range for refining crystal grains, and if zirconium is less than 0.1%, the refining effect cannot be obtained. Further, even if added in excess of 0.6% or more, it does not dissolve in the alloy but precipitates, adversely affecting the mechanical strength and toughness.
【００１２】次に、製造条件の限定理由を説明する。温
間圧延はプレス成形性を向上させるために重要なプロセ
スであり、適正な温度で適度な圧延加工を加えると、プ
レス成形性は著しく向上する。温度が低過ぎる場合には
圧延加工によって割れが発生し、総圧下率を高めること
ができない。また、温度が高過ぎる場合には、総圧下率
を著しく高くしないとプレス成形性は向上しない。薄板
の温間加工は、圧延時の温度降下が著しく、加工温度を
維持するために圧延工程の途中で再加熱が必要となる。
総圧下率が高くなれば圧延回数が増えるため、再加熱の
回数も増え、生産性を阻害するほかエネルギーコストの
面でも問題がある。以上の観点から温間圧延の温度は、
１８０〜２３０℃、好ましくは１８０〜２００℃がよ
い。また、総圧下率は、４０〜７０％、好ましくは４０
〜６０％がよい。Next, the reasons for limiting the manufacturing conditions will be described. Warm rolling is an important process for improving the press formability, and the press formability is remarkably improved by applying an appropriate rolling process at an appropriate temperature. If the temperature is too low, cracking occurs due to the rolling process, and the total rolling reduction cannot be increased. Further, when the temperature is too high, the press formability cannot be improved unless the total rolling reduction is significantly increased. In the warm working of a thin plate, the temperature drop during rolling is significant, and reheating is required during the rolling process in order to maintain the working temperature.
If the total reduction rate is high, the number of times of rolling increases, the number of times of reheating also increases, which impedes productivity and also has a problem in terms of energy cost. From the above viewpoint, the temperature of warm rolling is
180 to 230 ° C, preferably 180 to 200 ° C. The total rolling reduction is 40 to 70%, preferably 40.
~ 60% is good.
【００１３】[0013]
【実施例】以下、本発明を実施例に基いてさらに説明す
る。表１に示す成分のマグネシウム合金を溶製、厚さ６
０ｍｍのスラブに鋳造した。合金Ａ〜Ｅは、本発明合
金、合金Ｆは、希土類金属が本発明合金より少ない合
金、合金Ｇは、希土類金属が多い合金、合金Ｈは、亜鉛
が少ない合金、合金Ｉは、ジルコニウムが少ない合金、
合金Ｊは、最も一般的な薄板用マグネシウム合金である
ＪＩＳ ＭＰ１に相当する合金である。EXAMPLES The present invention will be further described below based on examples. Magnesium alloy with the components shown in Table 1 was melted to a thickness of 6
It was cast into a 0 mm slab. Alloys A to E are alloys of the present invention, alloys F are alloys containing less rare earth metal than alloys of the invention, alloy G is an alloy containing more rare earth metals, alloy H is an alloy containing less zinc, and alloy I is containing less zirconium. alloy,
Alloy J is an alloy corresponding to JIS MP1, which is the most general magnesium alloy for thin plates.
【００１４】[0014]
【表１】 スラブ表面を研削した後、温風循環式加熱炉に挿入し４
６０℃に加熱、３０分間均熱した後、１パス当たり約２
０％の圧下率で１０パスの圧延を行い、７ｍｍ厚の熱延
板とした。圧延温度は４６０〜４００℃で、各パス前に
表面温度計で板の温度を測定し、温度が４００℃以下に
なった場合は圧延せずに加熱炉に挿入し、４６０℃に加
熱した後、圧延を継続した。この圧延途上で合金Ｆおよ
びＩは、割れてしまい、板に加工することができなかっ
た。[Table 1] After grinding the slab surface, insert it into the hot air circulation type heating furnace and
After heating to 60 ℃ and soaking for 30 minutes, about 2 per pass
Rolling was performed for 10 passes at a rolling reduction of 0% to obtain a hot rolled sheet having a thickness of 7 mm. The rolling temperature is 460 to 400 ° C, the temperature of the plate is measured with a surface thermometer before each pass, and when the temperature becomes 400 ° C or less, the sheet is inserted into a heating furnace without rolling and heated to 460 ° C. , Continued rolling. During this rolling, the alloys F and I were cracked and could not be processed into a plate.
【００１５】圧延できた合金については圧延終了後、板
表面を再び研削した後、二回目の熱間圧延を行ない３ｍ
ｍの薄板にした。この時の圧延温度は、３８０〜３４０
℃であり、圧延パス数は６パス、１パス当たりの圧下率
は約２０％である。次いで、この薄板を希硝酸液で酸洗
し、所定の総圧下率に対応した板厚、すなわち、総圧下
率３０％の場合は１．４ｍｍ、６０％の場合は２．５ｍ
ｍまで研磨した後、表２に示す条件で温間圧延を行な
い、１ｍｍ厚の薄板を得た。温間圧延は、１パス当たり
２〜５％の圧下率で、１５〜３０パス行った。なお、圧
延温度を一定にするため、１パス毎に温風循環式加熱炉
で加熱した。For the alloy that could be rolled, after the rolling was finished, the surface of the plate was ground again, and then the second hot rolling was performed to 3 m.
m thin plate. The rolling temperature at this time is 380 to 340.
C., the number of rolling passes is 6, and the reduction rate per pass is about 20%. Next, this thin plate is pickled with a dilute nitric acid solution and has a plate thickness corresponding to a predetermined total reduction rate, that is, 1.4 mm when the total reduction rate is 30%, and 2.5 m when 60%.
After polishing to m, warm rolling was performed under the conditions shown in Table 2 to obtain a 1 mm thick thin plate. Warm rolling was performed for 15 to 30 passes at a reduction rate of 2 to 5% per pass. In addition, in order to keep the rolling temperature constant, each pass was heated in a warm air circulation type heating furnace.
【００１６】以上のようにして得られた薄板について、
プレス成形性を評価するため、２００℃で６０ｍｍ角の
角筒絞りを行い、限界絞り比（ＬＤＲ）を測定した。ま
た、圧延方向と平行にＪＩＳ６号引張試験片を採取し、
常温および２００℃で引張試験を行った。引張試験のひ
ずみ速度は、１．７×１０-3ｓｅｃ-1である。２００℃
における限界絞り比（ＬＤＲ）と引張試験の結果を、表
２に示す。Regarding the thin plate obtained as described above,
In order to evaluate the press formability, a 60 mm square rectangular tube was drawn at 200 ° C. and the limiting drawing ratio (LDR) was measured. In addition, JIS No. 6 tensile test pieces were taken in parallel with the rolling direction,
A tensile test was performed at room temperature and 200 ° C. The strain rate in the tensile test is 1.7 × 10 −3 sec −1 . 200 ° C
The limit drawing ratio (LDR) and the result of the tensile test in Table 2 are shown in Table 2.
【００１７】[0017]
【表２】 本発明例１〜５は、いずれも２００℃の限界絞り比（Ｌ
ＤＲ）が３．０以上であり、伸びも１２０％以上である
ことから、２００℃以上の温間プレスを行えば、複雑形
状のプレス成形が可能である。また、２０℃の引張強さ
伸びも良好である。一方、比較例１〜３は、合金組成が
本発明合金の組成範囲外であるため、２００℃のＬＤＲ
は小さく、複雑形状にプレス加工することは困難であ
る。また、比較例４〜６はいずれも合金組成は本発明合
金の組成範囲内にあるが、比較例４は温間圧延の温度が
下限より低かったため総圧下率で３０％の温間圧延を加
えた時点で圧延割れが生じ、材質試験はできなかった。
比較例５は温間圧延の総圧下率が下限より小さかったた
め、また、比較例６は圧延温度が上限より高すぎたた
め、いずれもＬＤＲは小さい。[Table 2] The invention examples 1 to 5 all have a limit drawing ratio (L
Since DR) is 3.0 or more and the elongation is 120% or more, press molding of a complicated shape is possible by performing warm pressing at 200 ° C. or more. Further, the tensile strength and elongation at 20 ° C are also good. On the other hand, in Comparative Examples 1 to 3, since the alloy composition is outside the composition range of the alloy of the present invention, the LDR at 200 ° C.
Is small and difficult to press into complex shapes. Further, in Comparative Examples 4 to 6, the alloy composition is within the composition range of the alloy of the present invention, but in Comparative Example 4, the temperature of warm rolling was lower than the lower limit, so that 30% of the total rolling reduction was applied to warm rolling. At that point, rolling cracks occurred and the material test could not be performed.
In Comparative Example 5, the total rolling reduction of the warm rolling was smaller than the lower limit, and in Comparative Example 6, the rolling temperature was too higher than the upper limit, so that the LDR was small.
【００１８】[0018]
【発明の効果】本発明によれば、プレス成形性に優れた
マグネシウム合金薄板を得ることができ、従来プレス成
形性に問題があるため適用できなかった、自動車車体お
よび部品、あるいは電気、電子機器等の筐体等にマグネ
シウム合金薄板を使用することが可能となり、自動車等
の軽量化に大いに貢献するものである。According to the present invention, it is possible to obtain a magnesium alloy thin plate having excellent press formability, which cannot be applied due to a problem with the press formability in the past, which is not applicable to automobile bodies and parts, or electric and electronic devices. It becomes possible to use a magnesium alloy thin plate for the case etc., which greatly contributes to the weight reduction of automobiles and the like.
Claims (1)
ジルコニウム０．１〜０．６％、亜鉛２．０〜４．０％
を含有し、残部が実質的にマグネシウムからなる合金を
溶解、鋳造し、その鋳塊を熱間圧延した後、１８０〜２
３０℃の温度範囲で総圧下率４０〜７０％の温間圧延を
加えることを特徴とする、プレス成形性に優れたマグネ
シウム合金薄板の製造方法。1. Rare earth metal 0.5 to 1.5% by weight,
Zirconium 0.1-0.6%, Zinc 2.0-4.0%
180 to 2 after melting and casting an alloy containing Al and the balance being substantially magnesium, and hot rolling the ingot.
A method for producing a magnesium alloy sheet having excellent press formability, which comprises performing warm rolling at a total reduction of 40 to 70% in a temperature range of 30 ° C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7965393A JPH06293944A (en) | 1993-04-06 | 1993-04-06 | Production of magnesium alloy sheet excellent in press formability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7965393A JPH06293944A (en) | 1993-04-06 | 1993-04-06 | Production of magnesium alloy sheet excellent in press formability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06293944A true JPH06293944A (en) | 1994-10-21 |
Family
ID=13696098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7965393A Withdrawn JPH06293944A (en) | 1993-04-06 | 1993-04-06 | Production of magnesium alloy sheet excellent in press formability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06293944A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10052423C1 (en) * | 2000-10-23 | 2002-01-03 | Thyssenkrupp Stahl Ag | Production of a magnesium hot strip comprises continuously casting a magnesium alloy melt to a pre-strip, and hot rolling the pre-strip directly from the casting heat at a specified roller starting temperature to form a hot strip |
| EP1491645A1 (en) * | 2002-03-04 | 2004-12-29 | Sumitomo (Sei) Steel Wire Corp. | Manesium base alloy tube and method for manufacture thereof |
| JP2006144043A (en) * | 2004-11-17 | 2006-06-08 | Mitsubishi Alum Co Ltd | Method for producing magnesium alloy sheet having excellent press moldability |
| JP2006299286A (en) * | 2005-04-15 | 2006-11-02 | Kasatani:Kk | Surface treating method for improving warm plastic working property of warm plastic working material made of magnesium metal and/or magnesium alloy, method for reducing deposit stuck to working die, method for improving warm plastic working property and improver of plastic working property of that material |
| JP2007083261A (en) * | 2005-09-20 | 2007-04-05 | National Institute Of Advanced Industrial & Technology | Press-formed body using magnesium alloy large cross-rolled material |
| JP2008156725A (en) * | 2006-12-25 | 2008-07-10 | Nagaoka Univ Of Technology | Magnesium thin sheet for flattening and method for producing magnesium thin sheet for flattening |
| JP2008163402A (en) * | 2006-12-28 | 2008-07-17 | Mitsubishi Alum Co Ltd | Method for producing magnesium alloy thin sheet |
| JP2008163398A (en) * | 2006-12-28 | 2008-07-17 | Mitsubishi Alum Co Ltd | Method for producing magnesium alloy thin sheet |
| JP2010013725A (en) * | 2008-06-05 | 2010-01-21 | National Institute Of Advanced Industrial & Technology | Easily formable magnesium alloy sheet and method for production thereof |
| WO2010110505A1 (en) * | 2009-03-23 | 2010-09-30 | 주식회사 지알로이테크놀로지 | Magnesium-zinc based alloy materials having excellent high-speed formability at low temperature, and manufacturing method for alloy plate |
| US8062439B2 (en) | 2002-06-05 | 2011-11-22 | Sumitomo Electric Industries, Ltd. | Magnesium alloy plate and method for production thereof |
| KR101293816B1 (en) * | 2005-03-22 | 2013-08-06 | 스미토모덴키고교가부시키가이샤 | Method of producing long magnesium material |
| JP2013533375A (en) * | 2010-05-24 | 2013-08-22 | コモンウェルス サイエンティフィック アンド インダストリアル リサーチ オーガニゼイション | Magnesium alloy for extension applications |
| CN103627937A (en) * | 2013-12-11 | 2014-03-12 | 东北轻合金有限责任公司 | Preparation method of high-zinc magnesium alloy ingot casting |
| CN103849799A (en) * | 2012-11-28 | 2014-06-11 | 沈阳工业大学 | High-toughness deformed Mg-Zn-Nd-Zr magnesium alloy and preparation method thereof |
| CN104498791A (en) * | 2014-12-15 | 2015-04-08 | 苏州昊卓新材料有限公司 | Method for preparing high-strength magnesium alloy |
-
1993
- 1993-04-06 JP JP7965393A patent/JPH06293944A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7726383B2 (en) | 2000-10-23 | 2010-06-01 | Thyssenkrupp Stahl Ag | Method for producing a magnesium hot strip |
| WO2002036843A1 (en) * | 2000-10-23 | 2002-05-10 | Thyssenkrupp Stahl Ag | Method for producing a magnesium hot strip |
| DE10052423C1 (en) * | 2000-10-23 | 2002-01-03 | Thyssenkrupp Stahl Ag | Production of a magnesium hot strip comprises continuously casting a magnesium alloy melt to a pre-strip, and hot rolling the pre-strip directly from the casting heat at a specified roller starting temperature to form a hot strip |
| EP1491645A1 (en) * | 2002-03-04 | 2004-12-29 | Sumitomo (Sei) Steel Wire Corp. | Manesium base alloy tube and method for manufacture thereof |
| EP1491645A4 (en) * | 2002-03-04 | 2005-04-13 | Sumitomo Sei Steel Wire Corp | Manesium base alloy tube and method for manufacture thereof |
| US8062439B2 (en) | 2002-06-05 | 2011-11-22 | Sumitomo Electric Industries, Ltd. | Magnesium alloy plate and method for production thereof |
| JP2006144043A (en) * | 2004-11-17 | 2006-06-08 | Mitsubishi Alum Co Ltd | Method for producing magnesium alloy sheet having excellent press moldability |
| KR101293816B1 (en) * | 2005-03-22 | 2013-08-06 | 스미토모덴키고교가부시키가이샤 | Method of producing long magnesium material |
| JP2006299286A (en) * | 2005-04-15 | 2006-11-02 | Kasatani:Kk | Surface treating method for improving warm plastic working property of warm plastic working material made of magnesium metal and/or magnesium alloy, method for reducing deposit stuck to working die, method for improving warm plastic working property and improver of plastic working property of that material |
| JP4601479B2 (en) * | 2005-04-15 | 2010-12-22 | 株式会社カサタニ | Surface treatment method for improving warm plastic working characteristics of magnesium metal and / or magnesium alloy warm plastic working material, method for reducing deposits adhering to the working mold, method for improving warm plastic working characteristics, And an agent for improving the warm plastic working characteristics of the material |
| JP2007083261A (en) * | 2005-09-20 | 2007-04-05 | National Institute Of Advanced Industrial & Technology | Press-formed body using magnesium alloy large cross-rolled material |
| JP4599594B2 (en) * | 2005-09-20 | 2010-12-15 | 独立行政法人産業技術総合研究所 | Press molded body made of magnesium alloy large cross rolled material |
| JP2008156725A (en) * | 2006-12-25 | 2008-07-10 | Nagaoka Univ Of Technology | Magnesium thin sheet for flattening and method for producing magnesium thin sheet for flattening |
| JP2008163402A (en) * | 2006-12-28 | 2008-07-17 | Mitsubishi Alum Co Ltd | Method for producing magnesium alloy thin sheet |
| JP2008163398A (en) * | 2006-12-28 | 2008-07-17 | Mitsubishi Alum Co Ltd | Method for producing magnesium alloy thin sheet |
| JP2010013725A (en) * | 2008-06-05 | 2010-01-21 | National Institute Of Advanced Industrial & Technology | Easily formable magnesium alloy sheet and method for production thereof |
| WO2010110505A1 (en) * | 2009-03-23 | 2010-09-30 | 주식회사 지알로이테크놀로지 | Magnesium-zinc based alloy materials having excellent high-speed formability at low temperature, and manufacturing method for alloy plate |
| JP2013533375A (en) * | 2010-05-24 | 2013-08-22 | コモンウェルス サイエンティフィック アンド インダストリアル リサーチ オーガニゼイション | Magnesium alloy for extension applications |
| US9945011B2 (en) | 2010-05-24 | 2018-04-17 | Commonwealth Scientific And Industrial Research Organisation | Magnesium-based alloy for wrought applications |
| CN103849799A (en) * | 2012-11-28 | 2014-06-11 | 沈阳工业大学 | High-toughness deformed Mg-Zn-Nd-Zr magnesium alloy and preparation method thereof |
| CN103627937A (en) * | 2013-12-11 | 2014-03-12 | 东北轻合金有限责任公司 | Preparation method of high-zinc magnesium alloy ingot casting |
| CN104498791A (en) * | 2014-12-15 | 2015-04-08 | 苏州昊卓新材料有限公司 | Method for preparing high-strength magnesium alloy |
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