JPH02138427A - Discoloration-resistant copper alloy - Google Patents

Discoloration-resistant copper alloy

Info

Publication number
JPH02138427A
JPH02138427A JP29215788A JP29215788A JPH02138427A JP H02138427 A JPH02138427 A JP H02138427A JP 29215788 A JP29215788 A JP 29215788A JP 29215788 A JP29215788 A JP 29215788A JP H02138427 A JPH02138427 A JP H02138427A
Authority
JP
Japan
Prior art keywords
discoloration
alloy
copper alloy
present
color
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
Application number
JP29215788A
Other languages
Japanese (ja)
Inventor
Isao Tsukamoto
塚本 勲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP29215788A priority Critical patent/JPH02138427A/en
Publication of JPH02138427A publication Critical patent/JPH02138427A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To obtain the title copper alloy having high discoloration resistance, having no deterioration of metallic gloss and suitable for the application to the products of art and craft and decoration by specifying the compsn. constituted of Al, Ni, Mn, Cr, Si, Sn, Zn and Cu. CONSTITUTION:The discoloration-resistant copper alloy is constituted of, by weight, 7.0% Al, 2.0% Ni, 2.0% Mn, 3.8% Cr, 0.5% Si, 0.5% Sn, 0.2% Zn and the balance Cu. The alloy has no discoloration and holds metallic gloss even if left for a long period of time. The above alloy retains beautiful gold color, has excellent plastic workability, corrosion resistance, workability, strength, etc., and is extremely suitable for the use to decorative application or the like.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、美術工芸品、装身具、食器類などの広い範囲
に使用する耐変色性銅合金に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a color-fast copper alloy used in a wide range of arts and crafts, accessories, tableware, etc.

従来の技術 従来、銅合金は、その目的によって美術装飾的用途と工
業的用途に大別される。その金属元素の組成により赤銅
色ないし黄金色の特長ある色調を呈し、さらに特殊な化
学的処理を施すことにより褐色、青色或いは緑色などの
種々深みのある色調を与えるので美術工芸品、装身具、
食器類などの美術装飾品としても、おへく使用されて〜
・る。また、従来の銅合金は、耐食性に冨み、電気伝導
度がよ(、機賊的強度が高いという、すぐれた特質のた
めに展伸材として機械部品材料或いは14L気部品材料
などの工業用品に広く使用されている。取分け、アルミ
ニウム糸鋼合金においては、アルミニウムkkCA2)
が増すにつれて色調は黄金色を増し5〜12%でアルミ
金と呼ばれる美しい黄金色となるが塑性加工性および耐
食性が悪化し、強度も低下する。
BACKGROUND OF THE INVENTION Conventionally, copper alloys have been broadly classified into artistic and decorative uses and industrial uses, depending on their purpose. Depending on the composition of its metallic elements, it exhibits a characteristic coppery to golden color tone, and when subjected to special chemical treatments, it can be given various deep tones such as brown, blue, or green, making it suitable for use in arts and crafts, accessories, etc.
It is also used as art decorations such as tableware.
・Ru. In addition, conventional copper alloys have excellent properties such as high corrosion resistance, high electrical conductivity (and high mechanical strength), so they are used as wrought materials for industrial products such as mechanical parts materials and 14L gas parts materials. In particular, aluminum kkCA2) is widely used in aluminum thread steel alloys.
As the amount increases, the color tone becomes more golden, and at 5 to 12% it becomes a beautiful golden color called aluminum gold, but the plastic workability and corrosion resistance deteriorate, and the strength also decreases.

また、変色も著しくなる。従ってアルミニウム銅合金に
鉄(Fe)、ニッケル(Ni)、マンガン(M n、 
)を添加して加工性、強度は保持されながらも、時の経
過と〜もに、次第に変色し肉眼に目立つようになり、そ
して合金の美的なかつ、本来の外観を損うものであった
In addition, discoloration becomes noticeable. Therefore, iron (Fe), nickel (Ni), manganese (Mn,
) was added to maintain workability and strength, but over time, the color gradually changed and became noticeable to the naked eye, detracting from the aesthetic and original appearance of the alloy.

発明が解決しようとする問題点 上記アルミニウム糸鋼合金の技術においては、塑性加工
性および耐色性が悪化し、強度も低下し変色する欠点が
あった。本発明はこれらの欠点を改良し、高耐色で、し
かも金属光沢の低下は全く見られない。本発明合金は美
術工芸品、装飾的用途に使用するには、極めて好適な銅
合金を提供することを目的とする。
Problems to be Solved by the Invention The above-mentioned aluminum thread steel alloy technology has disadvantages in that plastic workability and color fastness deteriorate, strength also decreases, and discoloration occurs. The present invention improves these drawbacks, provides high color fastness, and shows no reduction in metallic luster at all. The purpose of the alloy of the present invention is to provide a copper alloy that is extremely suitable for use in arts and crafts and decorative applications.

問題点を解決するための手段 表−1、表−2は、本発明の組成鋼合金の説明する表で
ある。本発明者は長年にわたり、上記問題点である、ア
ルミニウム系銅合金に関し、変色を無くすことの手段に
ついて、研究に研究を重ね今日、その発明を完成乞みた
。前記完成された本発明は、重量%にてアルミニウム(
AL)〜7.0%、ニッケル(Ni)〜20%、マンガ
フ(Mn) 〜20%、クローム(Cr)〜五8チ、珪
素(SL)〜0.5%、スズ(Sn)〜0.5%、亜鉛
(Zn) 〜0.2%、残部鋼C0u)からなる耐変色
性銅合金である。前記組成の合金をもって、鋳造したも
のが本発明の耐変色性鋼合金である。不発明の最大の特
徴は、前記したよ5にアルミニウムft(Anの少々の
増減に関係なく、美しい黄金色をいつまでも保持し続け
、しかも塑性加工性、耐食性、加工性、強度性等が保持
し続ける本発明のものである。前記本発明の特徴を発揮
させる技術手段は、繰り返し【述べるように、以下の金
属元素組成とその重Ijk%によるものである。アルミ
ニウム〜7、 OSs =y)yルー2017/ljy
 〜20%、クロム−五8%、珪素〜0.5%、スズ〜
α5%、亜鉛〜0.2%、残部鋼からなる銅合金である
Means for Solving Problems Table-1 and Table-2 are tables explaining the composition steel alloy of the present invention. The present inventor has spent many years researching ways to eliminate the discoloration of aluminum-based copper alloys, which is the problem mentioned above, and has now completed his invention. The completed present invention contains aluminum (by weight%).
AL) ~7.0%, nickel (Ni) ~20%, mangaf (Mn) ~20%, chromium (Cr) ~58%, silicon (SL) ~0.5%, tin (Sn) ~0. 5% zinc (Zn), ~0.2% zinc (Zn), and the balance steel C0u). The color-resistant steel alloy of the present invention is obtained by casting an alloy having the above composition. The most important feature of the invention is that, as mentioned above, aluminum ft (An) retains its beautiful golden color forever, regardless of slight increases or decreases in An, and maintains its plastic workability, corrosion resistance, workability, strength, etc. The technical means for exhibiting the features of the present invention is based on the following metal element composition and its weight Ijk%: aluminum ~ 7, OSs = y) y Lou 2017/ljy
~20%, chromium-58%, silicon ~0.5%, tin ~
It is a copper alloy consisting of α5%, zinc ~0.2%, and the balance steel.

本発明において、上記の銅合金に関し、変色をなくすこ
との問題点を一挙に解決の組成の金属元素組成は、クロ
ム〜3Ei%、珪素〜0.5%である。
In the present invention, regarding the above-mentioned copper alloy, the metal element composition of the composition that solves the problem of eliminating discoloration at once is chromium ~3Ei% and silicon ~0.5%.

作  用 本発明の構成要件の中で、特にクロム (Or)、珪素(Si)の特質を利用したものであって
該クロムは公知のとおり、耐食性、機械的性質を改善す
る手段に用いられ、融点が高い金属元素である。また、
珪素(Si)も融点が高い。該珪素は、活性が強い合金
元素である。
Function Among the constituent elements of the present invention, in particular, the characteristics of chromium (Or) and silicon (Si) are utilized, and the chromium is used as a means to improve corrosion resistance and mechanical properties, as is known. It is a metallic element with a high melting point. Also,
Silicon (Si) also has a high melting point. The silicon is a highly active alloying element.

当該発明のように、発明構成要件の組成の合金を重量%
で鋳造し、その中で特に、   融点の高い前記クロム
、珪素の両元素合金の存在においては該珪素元素合金の
活性反応により変色をなくす銅合金となる。
As in the invention, the alloy having the composition of the invention constituent elements is expressed in weight%.
In particular, in the presence of an alloy of both elements, chromium and silicon, which have high melting points, the copper alloy becomes a copper alloy that eliminates discoloration due to the active reaction of the silicon element alloy.

実施例 以下、本発明の実施例について説明する。本発明はこれ
に限定されるものでない。本発明の組成された合金を鋳
造し、その鋳塊を研磨し、60日間放置した時の色調の
変化を示したものである。(表−1は組成合金。表−2
は試験結果。) 表−1 表−2 本発明の組成合金を鋳造し、その鋳塊を研磨し60日間
放置した時の色H変化結果。
Examples Examples of the present invention will be described below. The present invention is not limited to this. This figure shows the change in color tone when the alloy composition of the present invention was cast, the ingot was polished, and left for 60 days. (Table-1 is composition alloy.Table-2
is the test result. ) Table 1 Table 2 Results of color H change when the compositional alloy of the present invention was cast, the ingot was polished and left for 60 days.

※試料着号7は市販品とし【の参考例である。*Sample No. 7 is a commercially available product and is a reference example.

表−2の記号は以下のとおりである。The symbols in Table-2 are as follows.

A:変色は全く認められず金属光沢を保持する。A: No discoloration was observed and the metallic luster was maintained.

Bニ一部分にに色は認められる。B: Color is recognized in one part.

C:全面に変色は認められ金属光沢が失われる。C: Discoloration is observed on the entire surface and metallic luster is lost.

前記したように本発明は表−1、表−2試料番号4の実
験結果でもって示すように最適の耐変色性銅合金のもの
が本発明の構成要件である。
As mentioned above, as shown in the experimental results of Table 1 and Sample No. 4 of Table 2, an optimum discoloration-resistant copper alloy is a constituent feature of the present invention.

該発明の要旨は、(実験結果表−1試料番号4ノアルミ
ニウム(八2)〜7.0%、ニッケル(Nす〜20 %
、 マyカニy (Mn ) 〜20 %、クロム(C
r)〜3.8%、珪素<si> 〜o、ss、スズ(S
n) 〜0.5%、亜鉛(Zn) 〜0.2%、残部鋼
(00)〜84%からなる耐変色性銅合金を構成要件と
したものである。前記組成の合金を鋳造した本発明は実
験結果表−2は組成の合金を鋳造しその鋳塊を研磨し6
0日間放置した時の色調の変化を示したものである。該
試料4番で示すように本発明は耐色性はA(変色は全く
認められず金属光沢を保持する。ンを示す銅合金の発明
に成功した。また、本発明の耐変色性鋼合金は、組成の
合金’kM造し、しかるのち粉体にして用途に供するこ
とは可能である。
The gist of the invention is (Experimental Results Table-1 Sample No. 4 Aluminum (82) - 7.0%, Nickel (N - 20%)
, My crab (Mn) ~20%, chromium (C
r) ~3.8%, silicon <si> ~o, ss, tin (S
n) ~0.5%, zinc (Zn) ~0.2%, and the remainder steel (00) ~84%. The present invention, in which an alloy having the above composition was cast, is as shown in Table 2 of the experimental results.
It shows the change in color tone when left for 0 days. As shown in Sample No. 4, the present invention succeeded in inventing a copper alloy that exhibits color fastness of A (no discoloration is observed and maintains metallic luster). It is possible to produce an alloy with the composition 'kM' and then turn it into a powder for use.

発明の効果 本発明は、実施例で明らかなように所定の組成合金を所
定の重量%でもって構成要件とした。
Effects of the Invention As is clear from the examples, the present invention uses a predetermined compositional alloy in a predetermined weight percent as a constituent element.

該発明の中で、クロムと珪素乞存在させ意義はお〜きい
。前述したようにアルミニウム鋼合金において、ニッケ
ル、マンガンを添加して加工性、強度は保持されるが、
時の経過とともに次第に変色してしまい、合金の美観を
損うものであって、本発明は前記欠点を除去l−た、耐
変色性(変色は全(認められず金II!4光沢を保持す
る。ンである特徴を41した本発明である。該特徴は美
術工芸品、装飾的用途に使用するに(1陸めて好適なも
のである。
In this invention, the presence of chromium and silicon is of great significance. As mentioned above, in aluminum steel alloys, workability and strength are maintained by adding nickel and manganese, but
The color gradually changes with the passage of time, impairing the aesthetic appearance of the alloy.The present invention eliminates the above disadvantages, and has excellent color fastness (no discoloration is observed, retaining the Gold II!4 luster). The present invention has 41 features which make it particularly suitable for use in arts and crafts and decorative applications.

Claims (1)

【特許請求の範囲】[Claims] 重量%にてアルミニウム(Al)〜7.0%、ニッケル
(Ni)〜2.0%、マンガン(Mn)20%、クロム
(Cr)〜3.8%、珪素(Si)〜0.5%、スズ(
Sn)〜0.5%、亜鉛(Zn)〜0.2%、残部銅(
Cu)からなる耐変色性銅合金。
Aluminum (Al) ~7.0%, nickel (Ni) ~2.0%, manganese (Mn) 20%, chromium (Cr) ~3.8%, silicon (Si) ~0.5% in weight% , tin (
Sn) ~0.5%, zinc (Zn) ~0.2%, balance copper (
A color-fast copper alloy consisting of Cu).
JP29215788A 1988-11-18 1988-11-18 Discoloration-resistant copper alloy Pending JPH02138427A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29215788A JPH02138427A (en) 1988-11-18 1988-11-18 Discoloration-resistant copper alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29215788A JPH02138427A (en) 1988-11-18 1988-11-18 Discoloration-resistant copper alloy

Publications (1)

Publication Number Publication Date
JPH02138427A true JPH02138427A (en) 1990-05-28

Family

ID=17778284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29215788A Pending JPH02138427A (en) 1988-11-18 1988-11-18 Discoloration-resistant copper alloy

Country Status (1)

Country Link
JP (1) JPH02138427A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002060867A (en) * 2000-08-18 2002-02-28 Masaya Mori Aluminum bronze
JP2007237113A (en) * 2006-03-10 2007-09-20 Sasakura Engineering Co Ltd Apparatus for supplying ozone water
US11094564B2 (en) 2017-10-26 2021-08-17 SCREEN Holdings Co., Ltd. Processing liquid supplying apparatus, substrate processing apparatus and processing liquid supplying method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002060867A (en) * 2000-08-18 2002-02-28 Masaya Mori Aluminum bronze
JP2007237113A (en) * 2006-03-10 2007-09-20 Sasakura Engineering Co Ltd Apparatus for supplying ozone water
US11094564B2 (en) 2017-10-26 2021-08-17 SCREEN Holdings Co., Ltd. Processing liquid supplying apparatus, substrate processing apparatus and processing liquid supplying method

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