JPH0499859A - Method for blackening surface of copper-based shape memory alloy material - Google Patents
Method for blackening surface of copper-based shape memory alloy materialInfo
- Publication number
- JPH0499859A JPH0499859A JP21463990A JP21463990A JPH0499859A JP H0499859 A JPH0499859 A JP H0499859A JP 21463990 A JP21463990 A JP 21463990A JP 21463990 A JP21463990 A JP 21463990A JP H0499859 A JPH0499859 A JP H0499859A
- Authority
- JP
- Japan
- Prior art keywords
- shape memory
- memory alloy
- copper
- based shape
- alloy material
- 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.)
- Pending
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 21
- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 21
- 239000010949 copper Substances 0.000 title claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 18
- 229910052802 copper Inorganic materials 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 230000001590 oxidative effect Effects 0.000 claims abstract 2
- 238000005554 pickling Methods 0.000 claims abstract 2
- 239000000463 material Substances 0.000 abstract description 13
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 238000004043 dyeing Methods 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000005751 Copper oxide Substances 0.000 description 1
- 229910017773 Cu-Zn-Al Inorganic materials 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 229910007570 Zn-Al Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Chemical Treatment Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、形状記憶合金の特性を損なうことなく材料表
面に黒色の酸化膜を形成させる銅系形状記憶合金材料の
表面黒色処理方法に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for blackening the surface of a copper-based shape memory alloy material, which forms a black oxide film on the surface of the material without impairing the properties of the shape memory alloy. It is.
〔従来の技術とその課題］
銅系形状記憶合金材料はＮｉ−Ｔｉ系形状記憶合金に比
較して価格が安いことから、ばねや配管用の継手として
使用されている。[Prior art and its problems] Copper-based shape memory alloy materials are used as springs and joints for piping because they are cheaper than Ni-Ti-based shape memory alloys.
銅系の形状記憶合金材料は、その製造工程中において表
面に酸化物がまだらに形成され、このため製品の見栄え
が悪くなる問題があった。これを避＆Ｊるため従来は材
料の表面に黒染処理を施して表面を黒色に染めていた。Copper-based shape memory alloy materials have a problem in that oxides are mottled on the surface during the manufacturing process, resulting in poor appearance of the product. In order to avoid this, conventionally the surface of the material was treated with black dyeing to dye it black.
この黒染処理は、形状記憶熱処理を施した材料をサンド
ブラストした後黒染処理液により黒染し、乾燥した後黒
粉の拭取りを行うものである。In this black dyeing process, a material subjected to shape memory heat treatment is sandblasted and then dyed black with a black dyeing treatment liquid, and after drying, the black powder is wiped off.
しかし上記の黒染処理は、サンドブラストの前処理が必
要な上、黒染処理、乾燥、拭取りなど人手を要する作業
が多く処理時間がかかり、さらに廃液の処理が必要であ
るなどの問題があった。However, the above-mentioned black dyeing process requires pre-treatment before sandblasting, requires many labor-intensive operations such as black dyeing, drying, and wiping, which takes time, and there are other problems, such as the need to treat waste liquid. Ta.
（発明が解決しようとする課題〕
本発明は、上記の問題について検討の結果なされたもの
で黒染処理液を使用せず、かつ工程が簡単で容易に、し
かも形状記憶特性を損なうことのない銅系形状記憶合金
材料の表面黒色処理方法を開発したものである。(Problems to be Solved by the Invention) The present invention was developed as a result of studies on the above-mentioned problems, and does not require the use of a black dye treatment solution, and is simple and easy to process, and does not impair shape memory properties. A method for surface blackening of copper-based shape memory alloy materials has been developed.
〔課題を解決するための手段および作用〕本発明は、銅
系形状記憶合金材料を酸洗した後、３００〜８００℃の
温度で１０分〜３時間熱処理することを特徴とする銅系
形状記憶合金材料の表面黒色処理方法である。[Means and effects for solving the problems] The present invention provides a copper-based shape memory alloy material, which is characterized in that the copper-based shape memory alloy material is pickled and then heat-treated at a temperature of 300 to 800°C for 10 minutes to 3 hours. This is a method for surface blackening treatment of alloy materials.
すなわち本発明は、上記の銅系形状記憶合金材料、例え
ば線、条、板、管などの素材或いは、コイルばね、継手
など製品としての材料を、酸洗を行なって材料表面のま
だらな酸化物を除去した後、大気中もしは酸素を少量含
んだ弱酸化性雰囲気中において３００〜８００℃の温度
で１０分〜３時間熱処理を施して、材料の表面に厚さ３
〜３０−１好ましくは数μのＣｕＯからなる黒色酸化銅
膜を形成させるものである。That is, the present invention pickles the above-mentioned copper-based shape memory alloy materials, such as materials such as wires, strips, plates, and tubes, or materials as products such as coil springs and joints, to remove mottled oxides on the material surface. After removal of the
~30-1 Preferably, a black copper oxide film made of CuO with a thickness of several microns is formed.
しかして本発明において熱処理条件を上記のようにした
のは、銅系形状記憶合金材料の銅の含有量によって黒色
酸化銅膜の生成の様子が異なるからであり、また上記の
所望の厚さに生成させるには上記の範囲内で熱処理する
必要がある。酸化銅膜の厚さは、あまり薄いと黒色の色
調を呈さす、また厚過ぎると形状回復率に悪影響を及ぼ
す。However, in the present invention, the heat treatment conditions are set as described above because the formation of the black copper oxide film differs depending on the copper content of the copper-based shape memory alloy material, and also because the above-mentioned desired thickness is In order to generate it, it is necessary to perform heat treatment within the above range. If the thickness of the copper oxide film is too thin, it will exhibit a black tone, and if it is too thick, it will adversely affect the shape recovery rate.
また本発明は上記の酸化熱処理と通常行われる形状記憶
熱処理を同時に行うことも可能である。Further, in the present invention, it is also possible to simultaneously perform the above-mentioned oxidation heat treatment and the commonly used shape memory heat treatment.
なお、本発明において、銅系形状記憶合金材料とは、Ｃ
ｕ −Ｚｎ−Ａｌ系合金、Ｃｕ−Ｚｎ−Ａｆ−Ｍｎ系合
金、Ｃｕ Ｓｔ −Ｚｎ −ＡＩ！、系合金等又は、
これらの合金にミツシュメタル、Ｃｒ、Ｂの１種または
２種以上を添加した形状記憶合金を意味する。In the present invention, the copper-based shape memory alloy material refers to C
u -Zn-Al alloy, Cu-Zn-Af-Mn alloy, Cu St -Zn -AI! , alloys, etc., or
It means a shape memory alloy in which one or more of Mitshu metal, Cr, and B are added to these alloys.
以下に本発明の一実施例について説明する。 An embodiment of the present invention will be described below.
Ｃｕ −Ｚｎ −Ａｌ系の銅系形状記憶合金の外径３４
．４ｍｍ、肉厚３．０閣、長さ５０閣の管材を硫酸水溶
液で表面の酸化物を除去するまで酸洗し、乾燥後４５０
℃の温度で１５分間大気中で加熱し、形状記憶熱処理と
酸化熱処理を同時に行った。この結果、材料の表面に黒
色の酸化銅が５１ｔｆ１の厚さに形成されたことを確認
した。Outer diameter of Cu-Zn-Al based copper shape memory alloy 34
．． A pipe material of 4 mm, wall thickness of 3.0 mm, and length of 50 mm is pickled with an aqueous sulfuric acid solution until surface oxides are removed, and after drying,
Shape memory heat treatment and oxidation heat treatment were performed simultaneously by heating in the air at a temperature of .degree. C. for 15 minutes. As a result, it was confirmed that black copper oxide was formed on the surface of the material to a thickness of 51 tf1.
また、比較のため同様の管材を従来方法の形状記憶熱処
理後サンドブラストを施し、次いでＥ。For comparison, a similar tube material was subjected to a conventional shape memory heat treatment and then sandblasted, and then subjected to E.
Ｐ、 １社製の８１０Ｘ３１１（商品名）黒染処理液
を用いて、黒染し、乾燥、黒粉の拭取りを行って黒染処
理した。P, 810X311 (trade name) black dyeing treatment solution manufactured by 1 Company was used to dye black, dry, and wipe off the black powder.
上記のそれぞれの管材を継手とし、肉厚０．８ｍｍの銅
配管を接続した。この接続配管について形状回復率、リ
ークテスト、引張り強さなどを調べた。Each of the above pipe materials was used as a joint, and a copper pipe with a wall thickness of 0.8 mm was connected. The shape recovery rate, leak test, tensile strength, etc. of this connecting pipe were investigated.
その結果を第１表に示す。The results are shown in Table 1.
第１表
容易に銅系形状記憶合金材料の表面に黒色処理を施すこ
とができるもので工業上顕著な効果を奏するものである
。Table 1: Blackening treatment can be easily applied to the surface of copper-based shape memory alloy materials, which has a significant industrial effect.
Claims (3)
００℃の温度で１０分〜３時間熱処理することを特徴と
する銅系形状記憶合金材料の表面黒色処理方法。(1) After pickling the copper-based shape memory alloy material, the
A method for blackening the surface of a copper-based shape memory alloy material, the method comprising heat treating at a temperature of 00°C for 10 minutes to 3 hours.
特徴とする請求項１記載の銅系形状記憶合金材料の表面
黒色処理方法。(2) The method for blackening the surface of a copper-based shape memory alloy material according to claim 1, which is carried out simultaneously with the shape memory heat treatment or in a separate step.
を特徴とする請求項１または２記載の銅系形状記憶合金
材料の表面黒色処理方法。(3) The method for surface blackening of a copper-based shape memory alloy material according to claim 1 or 2, wherein the heat treatment atmosphere is air or a weakly oxidizing atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21463990A JPH0499859A (en) | 1990-08-14 | 1990-08-14 | Method for blackening surface of copper-based shape memory alloy material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21463990A JPH0499859A (en) | 1990-08-14 | 1990-08-14 | Method for blackening surface of copper-based shape memory alloy material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0499859A true JPH0499859A (en) | 1992-03-31 |
Family
ID=16659083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21463990A Pending JPH0499859A (en) | 1990-08-14 | 1990-08-14 | Method for blackening surface of copper-based shape memory alloy material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0499859A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006057960A1 (en) * | 2004-11-23 | 2006-06-01 | Mhe Corp. | Space heater with pretreated heat exchanger |
| KR20140123599A (en) | 2012-03-06 | 2014-10-22 | 미쓰이 가가쿠 가부시키가이샤 | Plastic polarizing lens and process for producing same |
| CN104233134A (en) * | 2013-06-14 | 2014-12-24 | 镇江忆诺唯记忆合金有限公司 | Heat treatment method for increasing rolling wearability of copper zinc aluminium memory alloy under alkalescence |
| WO2018142487A1 (en) * | 2017-01-31 | 2018-08-09 | Ykk株式会社 | Article having metallic surface, tone-treatment method therefor, and gas phase oxidation device |
-
1990
- 1990-08-14 JP JP21463990A patent/JPH0499859A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006057960A1 (en) * | 2004-11-23 | 2006-06-01 | Mhe Corp. | Space heater with pretreated heat exchanger |
| AU2005309775B2 (en) * | 2004-11-23 | 2010-12-16 | Mhe Corp. | Space heater with pretreated heat exchanger |
| KR20140123599A (en) | 2012-03-06 | 2014-10-22 | 미쓰이 가가쿠 가부시키가이샤 | Plastic polarizing lens and process for producing same |
| CN104233134A (en) * | 2013-06-14 | 2014-12-24 | 镇江忆诺唯记忆合金有限公司 | Heat treatment method for increasing rolling wearability of copper zinc aluminium memory alloy under alkalescence |
| WO2018142487A1 (en) * | 2017-01-31 | 2018-08-09 | Ykk株式会社 | Article having metallic surface, tone-treatment method therefor, and gas phase oxidation device |
| CN110234782A (en) * | 2017-01-31 | 2019-09-13 | Ykk株式会社 | Object, its shading approach and gaseous oxidation device with metal surface |
| EP3578681A4 (en) * | 2017-01-31 | 2020-08-26 | YKK Corporation | Article having metallic surface, tone-treatment method therefor, and gas phase oxidation device |
| CN110234782B (en) * | 2017-01-31 | 2021-12-17 | Ykk株式会社 | Object having metal surface, color tone processing method thereof, and gas phase oxidation apparatus |
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