JPH0470371B2 - - Google Patents
Info
- Publication number
- JPH0470371B2 JPH0470371B2 JP60156281A JP15628185A JPH0470371B2 JP H0470371 B2 JPH0470371 B2 JP H0470371B2 JP 60156281 A JP60156281 A JP 60156281A JP 15628185 A JP15628185 A JP 15628185A JP H0470371 B2 JPH0470371 B2 JP H0470371B2
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- lithium
- atmosphere
- container
- alloy
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 229910052782 aluminium Inorganic materials 0.000 claims description 37
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 37
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 23
- 229910052744 lithium Inorganic materials 0.000 claims description 23
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 claims description 7
- 229910001148 Al-Li alloy Inorganic materials 0.000 claims description 6
- 239000001989 lithium alloy Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 2
- 229910052808 lithium carbonate Inorganic materials 0.000 description 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 2
- 229910001947 lithium oxide Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Description
【発明の詳細な説明】
(イ) 発明の目的
［産業上の利用分野］
この発明は航空機の構造材料として用いられ、
或いは、軽量でしかも強靱な材料を求める各種産
業分野から期待の持たれているリチウム・アルミ
ニウム合金に係り、特に、微細な割れの発生を抑
制したアルミニウム・リチウム合金の製造法に関
するものである。[Detailed description of the invention] (a) Purpose of the invention [Field of industrial application] This invention is used as a structural material for aircraft,
Alternatively, the present invention relates to lithium-aluminum alloys, which have high expectations from various industrial fields that require lightweight yet strong materials, and in particular, relates to a method for producing aluminum-lithium alloys that suppresses the occurrence of microscopic cracks.
［従来の技術］
従来、アルミニウム・リチウム合金の製造は、
耐火るつぼ中でアルミニウムを溶融した後、別
途、大気と反応させないため油浸けしたリチウム
片をアルミニウムに溶解させるもので、溶解時の
雰囲気としては、酸化防止用の気体、例えば弗化
硫黄ガスを溶融金属表面に吹きつけるのが一般的
であつた。[Conventional technology] Conventionally, the production of aluminum-lithium alloy was
After melting aluminum in a refractory crucible, a piece of lithium soaked in oil is separately melted into the aluminum to prevent it from reacting with the atmosphere.The atmosphere during melting is a melting gas containing an antioxidant gas, such as sulfur fluoride gas. It was common to spray it onto metal surfaces.
［発明が解決しようとする問題点］
従つて、従来の技術においてはプロセス一切を
大気中で処理するため取扱いが簡便であるが、リ
チウムと大気の接触を完全に絶つことは極めて困
難で、このため、酸化リチウムや炭酸リチウム等
の化合物を合金中に生成析出し、これら生成物を
基点または起因として微細な割れを生じ易く、構
造材料としての応用上難点となつていた。[Problems to be solved by the invention] Therefore, in the conventional technology, all processes are carried out in the atmosphere, making handling easy, but it is extremely difficult to completely eliminate contact between lithium and the atmosphere, and this Therefore, compounds such as lithium oxide and lithium carbonate are formed and precipitated in the alloy, and these products tend to cause or cause minute cracks, which has been a problem in terms of application as a structural material.
この発明は上記の如き事情に鑑みてなされたも
のであつて、リチウムに適当な前処理を施すこと
により、リチウムの酸化を防止することができ、
しかも、大気中で溶解作業を行いうるリチウム・
アルミニウム合金の製造法を提供することを目的
とするものである。 This invention was made in view of the above circumstances, and it is possible to prevent oxidation of lithium by subjecting lithium to an appropriate pretreatment.
Moreover, lithium can be melted in the atmosphere.
The purpose of the present invention is to provide a method for producing aluminum alloy.
(ロ) 発明の構成
［問題点を解決するための手段］
この目的に対応して、この発明のアルミニウ
ム・リチウム合金の製造法は、不活性ガス雰囲気
中において仕切枠によつて複数の区画に仕切られ
たアルミニウム容器の中に一定量の溶融リチウム
を注入し冷却凝固させた後、前記アルミニウム容
器の開放端にアルミニウム蓋を固着密封し、前記
密封したアルミニウム容器を大気中で圧延した後
枠部で切断してアルミニウム被覆リチウム片を作
成し、これを溶融アルミニウム中に添加溶解し合
金化することを特徴としている。(b) Structure of the invention [Means for solving the problem] In response to this objective, the method for producing an aluminum-lithium alloy of the present invention is divided into a plurality of compartments using partition frames in an inert gas atmosphere. After a certain amount of molten lithium is injected into a partitioned aluminum container and cooled and solidified, an aluminum lid is fixed and sealed on the open end of the aluminum container, and the sealed aluminum container is rolled in the atmosphere. The process is characterized in that aluminum-coated lithium pieces are created by cutting the pieces, which are then added to molten aluminum and melted to form an alloy.
［作用］
リチウムは大気中の窒素、酸素、炭酸ガス、或
いは水と反応し易い物質であるため、合金製造
時、アルミニウムとの溶解工程において大気に接
触させないことが肝要である。[Function] Since lithium is a substance that easily reacts with nitrogen, oxygen, carbon dioxide, or water in the atmosphere, it is important that it is not brought into contact with the atmosphere during the melting process with aluminum during alloy production.
この発明では、リチウム不活性ガス雰囲気中に
おいてアルミニウム容器内に溶融注入し、冷却凝
固させた後容器の開口部をアルミニウム製の蓋で
密封しているので、アルミニウム容器内のリチウ
ムはこの時点で大気と完全に遮断されるため、以
後のプロセスを大気中で処理することができる。
また、前記アルミニウム容器は仕切枠により複数
の区画に仕切られているので、圧延後この枠部で
切断することにより周囲がアルミニウムで被覆さ
れた多数のアルミニウム被覆リチウム片が得ら
れ、従つて、合金工程における添加リチウム量の
秤量作業が簡便となる。 In this invention, lithium is melted and injected into an aluminum container in an inert gas atmosphere, cooled and solidified, and then the opening of the container is sealed with an aluminum lid. This allows subsequent processes to be carried out in the atmosphere.
Furthermore, since the aluminum container is partitioned into a plurality of compartments by a partition frame, by cutting at this frame after rolling, a large number of aluminum-coated lithium pieces whose periphery is coated with aluminum can be obtained. This simplifies the work of weighing the amount of lithium added in the process.
［実施例］
以下、この発明の詳細を一実施例を示す図面に
ついて説明する。[Example] Hereinafter, details of the present invention will be explained with reference to drawings showing an example.
第１図において符号１はアルミニウム容器であ
り、アルミニウム容器１は仕切枠６によつて複数
の区画に仕切られている。このようなアルミニウ
ム容器内にリチウムを溶融し注入するのである
が、先ず、不活性ガス雰囲気中においてリチウム
を純鉄のるつぼ中で溶融した後、前記アルミニウ
ム容器１の中に一定重量の溶融したリチウム２を
注入し、その後、冷却凝固させる。次に、前記ア
ルミニウム容器１の開放端、すなわち、上面開口
部をアルミニウム蓋３で覆い蓋３と容器１の接触
する周囲を溶接または蝋付け等の公知の手段によ
り固着密封する。 In FIG. 1, reference numeral 1 denotes an aluminum container, and the aluminum container 1 is partitioned into a plurality of compartments by a partition frame 6. As shown in FIG. Lithium is melted and injected into such an aluminum container. First, lithium is melted in a pure iron crucible in an inert gas atmosphere, and then a certain weight of molten lithium is poured into the aluminum container 1. 2 is injected and then cooled and solidified. Next, the open end of the aluminum container 1, that is, the top opening is covered with an aluminum lid 3, and the area where the lid 3 and the container 1 come in contact is fixed and sealed by known means such as welding or brazing.
次に、アルミニウム蓋３が固着された内部にリ
チウム２の封入されたアルミニウム容器１を大気
中に取り出し、温度400〜500℃で１時間ないし２
時間加熱した後圧延し、厚み５〜８mmの圧延板と
する。 Next, the aluminum container 1 with the aluminum lid 3 fixed inside and lithium 2 sealed therein is taken out into the atmosphere and kept at a temperature of 400 to 500°C for 1 hour or 2 hours.
After heating for a period of time, it is rolled to form a rolled plate with a thickness of 5 to 8 mm.
第２図はアルミニウム容器の正面図であるが、
前記圧延板からのアルミニウム被覆リチウム片の
切り出しは、図において符号６に示される仕切枠
のほぼ中央に切断部４，５が位置するように切断
する。 Figure 2 is a front view of the aluminum container.
The aluminum-coated lithium piece is cut out from the rolled plate so that the cut portions 4 and 5 are located approximately at the center of the partition frame indicated by reference numeral 6 in the figure.
次に、別途、大気中においてアルミニウムをア
ルミナその他の耐火物製るつぼ中で溶解した後、
前記切り出したアルミニウム被覆リチウム片を少
しづつ適量になるまで添加し、撹拌溶解すること
によつてアルミニウム・リチウム合金を製造す
る。 Next, separately, after melting aluminum in a crucible made of alumina or other refractory material in the atmosphere,
An aluminum-lithium alloy is produced by adding the cut out aluminum-coated lithium pieces little by little until the appropriate amount is reached and stirring and melting.
(ハ) 発明の効果
本発明によれば、リチウムのアルミニウムへの
溶解において、大規模な雰囲気調整装置を使用す
ることなくリチウムが大気に接することなしに溶
解工程を大気中で行うことを可能とし、更に、溶
解時において酸化リチウムや炭酸リチウム等の介
在物を生成しないため、これらを起因とする微細
な割れの発生を抑制したアルミニウム・リチウム
合金を得ることができる。(C) Effects of the Invention According to the present invention, when dissolving lithium into aluminum, it is possible to perform the dissolution process in the atmosphere without using a large-scale atmosphere conditioning device and without the lithium coming into contact with the atmosphere. Furthermore, since inclusions such as lithium oxide and lithium carbonate are not generated during melting, an aluminum-lithium alloy can be obtained in which the occurrence of fine cracks caused by these inclusions is suppressed.
第１図はリチウム封入アルミニウム容器の縦断
面図、及び、第２図は前記アルミニウム容器の正
面図である。
１……アルミニウム容器、２……リチウム、３
……アルミニウム蓋、４，５……切断部、６……
仕切枠。
FIG. 1 is a longitudinal sectional view of a lithium-filled aluminum container, and FIG. 2 is a front view of the aluminum container. 1... Aluminum container, 2... Lithium, 3
... Aluminum lid, 4, 5 ... Cutting section, 6 ...
Partition frame.
Claims (1)
複数の区画に仕切られたアルミニウム容器の中に
一定量の溶融リチウムを注入し冷却凝固させた
後、前記アルミニウム容器の開放端にアルミニウ
ム蓋を固着密封し、前記密封したアルミニウム容
器を大気中で圧延した後枠部で切断してアルミニ
ウム被覆リチウム片を作成し、これを溶融アルミ
ニウム中に添加溶解し合金化することを特徴とす
るアルミニウム・リチウム合金の製造法。1. A certain amount of molten lithium is poured into an aluminum container divided into multiple compartments by a partition frame in an inert gas atmosphere, cooled and solidified, and then an aluminum lid is fixed and sealed on the open end of the aluminum container. The aluminum-lithium alloy is produced by rolling the sealed aluminum container in the atmosphere and cutting it at the rear frame to create an aluminum-coated lithium piece, which is then added to molten aluminum and melted to form an alloy. Manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15628185A JPS6217142A (en) | 1985-07-16 | 1985-07-16 | Manufacture of aluminum-lithium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15628185A JPS6217142A (en) | 1985-07-16 | 1985-07-16 | Manufacture of aluminum-lithium alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6217142A JPS6217142A (en) | 1987-01-26 |
| JPH0470371B2 true JPH0470371B2 (en) | 1992-11-10 |
Family
ID=15624390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15628185A Granted JPS6217142A (en) | 1985-07-16 | 1985-07-16 | Manufacture of aluminum-lithium alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6217142A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11168384B2 (en) * | 2019-07-26 | 2021-11-09 | Fmc Lithium Usa Corp. | Process of preparing a lithium aluminum alloy |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4926108A (en) * | 1972-07-05 | 1974-03-08 |
-
1985
- 1985-07-16 JP JP15628185A patent/JPS6217142A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4926108A (en) * | 1972-07-05 | 1974-03-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6217142A (en) | 1987-01-26 |
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