JPS6013416B2 - White Cu alloy with excellent drawability and weather resistance - Google Patents

White Cu alloy with excellent drawability and weather resistance

Info

Publication number
JPS6013416B2
JPS6013416B2 JP12813680A JP12813680A JPS6013416B2 JP S6013416 B2 JPS6013416 B2 JP S6013416B2 JP 12813680 A JP12813680 A JP 12813680A JP 12813680 A JP12813680 A JP 12813680A JP S6013416 B2 JPS6013416 B2 JP S6013416B2
Authority
JP
Japan
Prior art keywords
alloy
white
weather resistance
content
hot
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
Application number
JP12813680A
Other languages
Japanese (ja)
Other versions
JPS5754239A (en
Inventor
正樹 森川
邦雄 岸田
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.)
Mitsubishi Metal Corp
Original Assignee
Mitsubishi Metal Corp
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 Mitsubishi Metal Corp filed Critical Mitsubishi Metal Corp
Priority to JP12813680A priority Critical patent/JPS6013416B2/en
Publication of JPS5754239A publication Critical patent/JPS5754239A/en
Publication of JPS6013416B2 publication Critical patent/JPS6013416B2/en
Expired legal-status Critical Current

Links

Description

【発明の詳細な説明】 この発明は、熱間および冷間における展伸加工性にすぐ
れ、かつ耐膜性にもすぐれた白色Cu合金に関するもの
である。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a white Cu alloy that has excellent hot and cold drawing workability and excellent film resistance.

従来、白色Cu合金としては、Ni:8.5〜11.5
%、Cu:62〜紙%、Zn:残りからなる組成(以上
重量%、以下%の表示はすべて重量%を意味する)をも
った洋白が一般的によく知られている。
Conventionally, as a white Cu alloy, Ni: 8.5 to 11.5
%, Cu: 62% to paper%, and Zn: the remainder (all % by weight and % hereinafter mean % by weight) are generally well known.

一般にCu合金においては、Q相組織は常温ですぐれた
展伸加工性を示し、一方8相組織は反対に高温において
すぐれた辰伸加工性を示すことが知られているが、上記
洋白は、常温では展伸加工性のすぐれたQ相組織をもつ
ものの、高温に加熱されても8相がほとんど形成されな
いために、熱間における展伸加工性が非常に悪く、この
結果工業的には鋳造のままか、あるいはこれに冷間にお
いて展伸加工を施した状態で使用に供されているのが現
状である。すなわち、洋白の丸榛などは鋳造材であり、
同じく板材は冷間圧延により製造されたものである。し
かし、洋白の鋳造材は強度的に問題があって構造用部材
としての使用に信頼がもてないものであり、また例えば
洋白の板材は、冷間圧延と凝鈍処理の繰返し工程によっ
て製造されるため、その製造は、熱間圧延適用の場合に
比して熱効率および作業効率の悪いものとならざるをを
得ないものであった。
It is generally known that in Cu alloys, the Q-phase structure exhibits excellent elongation workability at room temperature, while the 8-phase structure, on the contrary, exhibits excellent elongation workability at high temperatures. Although it has a Q-phase structure with excellent drawability at room temperature, almost no 8-phase is formed even when heated to high temperatures, so the drawability in hot conditions is very poor, and as a result, industrial casting is difficult. Currently, it is used either as is or after being cold-stretched. In other words, nickel silver Maruhane is a cast material,
Similarly, the plate material is manufactured by cold rolling. However, nickel silver castings have strength problems and are unreliable for use as structural members, and nickel silver plates, for example, are manufactured through a repeated process of cold rolling and annealing. As a result, the manufacturing process had to be less efficient in terms of thermal efficiency and work efficiency than in the case of hot rolling.

本発明者等は、上述のような鶴馬点から、洋白の代替材
料、すなわち白色を呈すると共に、すぐれた耐候性を示
し、しかも熱間および冷間のいずれにおいても展伸加工
が可能であり、かつ強度的にも問題のない材料を得べ〈
研究を行なった結果「Mn:7〜9.8%、Zn:15
〜30%、 虹:0.1〜3%、 Ni:0.2〜8.5%、 を含有し、さらに必要に応じて、 Pb:0.2〜2%、 CoおよびFeのうちの1種または2種;0.2〜3%
、のいずれか、または両方を含有し、 Cuおよび不可避不純物:残り「 からなる組成を有するCu合金は、白色を呈し「しかも
常温ではQ相を有し、一方高温においては多くの8相の
形成が見られるため、冷間および熱間における展伸加工
を良好な状態で行なうことができ、強度改善と相まって
耐候性にもすぐれるものであるという知見を得たのであ
る。
From the Tsuruma point mentioned above, the present inventors have developed an alternative material to nickel silver, which is white in color, exhibits excellent weather resistance, and can be stretched in both hot and cold conditions. It is possible to obtain a material with no problems in terms of strength.
As a result of research, “Mn: 7-9.8%, Zn: 15%
Contains ~30%, Rainbow: 0.1~3%, Ni: 0.2~8.5%, and, if necessary, Pb: 0.2~2%, one of Co and Fe. Seed or two; 0.2-3%
A Cu alloy containing one or both of the following, with the remainder consisting of Cu and unavoidable impurities, exhibits a white color and has a Q phase at room temperature, while at high temperatures many 8 phases are formed. Because of this, it was found that cold and hot stretching can be performed in good condition, and that it has excellent weather resistance as well as improved strength.

この発明は、上記知見にもとづいてなされたものであっ
て、成分組成を上記の通りに限定した理由を説明する。
This invention was made based on the above knowledge, and the reason why the component composition was limited as described above will be explained.

{aー MnMn成分には、合金の色調を白色化すると
共に、高温における8相の形成を促進して、合金にすぐ
れた熱間展伸加工性を付与する作用があるが、その含有
量が7%未満では、その色調が赤色系となるほか、8相
の形成が不十分で所望の熱間展伸加工性を確保すること
ができず「一方9.8%を越えて含有させると耐膜性が
劣化するようになると共に、合金製造に際して溶解が困
難になることから、その含有量を7〜9.8%と定めた
{a- The MnMn component has the effect of whitening the color tone of the alloy, promoting the formation of eight phases at high temperatures, and imparting excellent hot workability to the alloy, but its content is If the content is less than 7%, the color tone becomes reddish, and the formation of eight phases is insufficient, making it impossible to secure the desired hot stretchability. The content was determined to be 7 to 9.8% because the film properties deteriorate and it becomes difficult to dissolve during alloy production.

(b)Zn Zn成分には、合金の強度および熱間展伸加工性を改善
する作用があるが、その含有量が15%未満では前記作
用に所望の改善効果が得られず、一方30%を越えて含
有させると「常温での伸びが低下するようになって袷間
展延加工時に割れが発生しやすくなることから、その含
有量を15〜30%と定めた。
(b) Zn The Zn component has the effect of improving the strength and hot elongation workability of the alloy, but if its content is less than 15%, the desired effect of improving the above effects cannot be obtained; If the content exceeds 15%, the elongation at room temperature will decrease and cracks will easily occur during the rolling process, so the content was set at 15% to 30%.

【cー 山 AI成分には、脱酸作用のほか、合金の溶解を容易にし
、かつ鋳造性を改善する作用があるが、その含有量が0
.1%禾満では前記作用に所望の効果が得られず、一方
3%を越えて含有させると、合金の伸びが低下して展仲
加工性がそこなわれるようになることから、その含有量
を0.1〜3%と定めた。
[c- Yama AI component has the effect of deoxidizing the alloy, making it easier to melt the alloy, and improving the castability, but if its content is 0
.. If the content exceeds 1%, the desired effect cannot be obtained, while if the content exceeds 3%, the elongation of the alloy will decrease and the malleability will be impaired. was set at 0.1 to 3%.

‘d} Ni Ni成分には、合金の耐候性を著しく向上させる作用が
あるが、その含有量が0.2%禾満では所望の耐候性を
確保することができず、一方8.5%を越えて含有させ
ると、高温での8相の形成が抑制されるようになって熱
間展伸加工性が困難となり、さらに鋳造欠陥が発生しや
すくなることから、その含有量を0.2〜8.5%と定
めた。
'd} Ni The Ni component has the effect of significantly improving the weather resistance of the alloy, but if the Ni content is less than 0.2%, the desired weather resistance cannot be secured; If the content exceeds 0.2, the formation of 8 phases at high temperatures will be suppressed, making hot elongation workability difficult and casting defects more likely to occur. It was set at ~8.5%.

【e)Pb Pb成分には、被削性を改善する作用があるので、特に
合金にすぐれた被削性が要求される場合に必要に応じて
含有されるが、その含有量が0.2%未満では所望の快
削性を確保することができず、一方2%を越えて含有さ
せると、熱間押出しや冷間圧延などの展伸加工がきわめ
て困難になることから、その含有量を0.2〜2%と定
めた。
[e) Pb Since the Pb component has the effect of improving machinability, it is included as necessary when particularly excellent machinability is required for the alloy, but if the content is 0.2 If the content is less than 2%, it will not be possible to secure the desired free machinability, while if the content exceeds 2%, stretching processes such as hot extrusion and cold rolling will become extremely difficult. It was set at 0.2 to 2%.

‘f} CoおよびFe これらの成分には合金の強度を一段と向上させる作用が
あるので、特に高強度が要求される場合に必要に応じて
含有されるが、その含有量が0.2%未満では所望の強
度向上効果を確保することができず、一方3%を越えて
含有させると、合金製造に際して溶解が困難になること
から、その含有量を0.2〜3%と定めた。
'f} Co and Fe These components have the effect of further improving the strength of the alloy, so they are included as necessary when particularly high strength is required, but their content is less than 0.2%. However, if the content exceeds 3%, melting becomes difficult during alloy production, so the content was set at 0.2 to 3%.

つぎに、この発明のCu合金を実施例により説明する。Next, the Cu alloy of the present invention will be explained using examples.

実施例通常の溶解法により、それぞれ第1表に示される
成分組成をもった溶湯を調製しt これを直径;7仇防
ぐ×長さ:20仇舷のインゴツト(重量6k9)に鋳造
することによって、本発明Cu合金1〜18および従来
Cu合金としての洋白1、2をそれぞれ製造した。
EXAMPLE Molten metals having the compositions shown in Table 1 were prepared by a conventional melting method, and then cast into an ingot (weight: 6k9) with a diameter of 7 mm and a length of 20 m. , Cu alloys 1 to 18 of the present invention and nickel silver 1 and 2 as conventional Cu alloys were manufactured, respectively.

この結果得られた本発明Cu合金1〜18および洋白1
、2は、いずれも白色の色調を有し、しかも第1表に示
される鋳造状態での引張強ごおよび伸びを示すものであ
った。
The resulting Cu alloys of the present invention 1 to 18 and nickel silver 1
, 2 had a white color and exhibited the tensile strength and elongation in the cast state shown in Table 1.

ついで、上記本発明Cu合金1〜18および洋白1、2
について、使用装置:15肌nプレス、ビレットサィズ
:直径:滋肋少×長さ:100肋、押出し温度:750
〜800午○、押出比:3餅/7=29.5、ダイス温
度:380ooの条件で熱間押出し試験を行ない、押出
し良好なもの:◎印、押出し可能なもの:○印、押出し
不可のもの:×印をもって、その熱間展伸加工性を評価
した。
Next, the above-mentioned Cu alloys 1 to 18 of the present invention and nickel silver 1 and 2
Equipment used: 15mm press, Billet size: Diameter: 100mm x Length: 100mm, Extrusion temperature: 750mm
A hot extrusion test was conducted under the conditions of ~800 pm ○, extrusion ratio: 3 mochi/7 = 29.5, die temperature: 380 oo, those with good extrusion: ◎ mark, extrudable ones: ○ mark, non-extrudable ones Item: The hot stretchability was evaluated using an x mark.

また、袷間展伸加工性を評価するために、1パスの加工
率を10%として冷間圧延を行ない、割れ発生までの全
体加工率を測定した。さらに耐候性を評価する目的で、
JIS規格に則し、70時間の塩水頃霧試験を行ない、
試験後の単位面積当りの重量減を測定した。これらの測
定結果を第1表に合せて示した。第1表に示されるよう
に、本発明Cu合金1〜18および洋白1、2は、いず
れもすぐれた冷間辰伸加工性および耐候性を示すものの
、鋳造ままの強度および熱間展伸加工性に関しては、洋
白1、2は著しく劣った結果を示し、一方本発明Cu合
金1〜18はいずれもきわめて良好な結果を示すことが
明らかである。上述のように、この発明のCu合金は、
従来洋白と同等の白色の色調、並びにすぐれた耐候性を
有するほか、冷間辰伸加工性は勿論のこと、従来洋白で
は見られないすぐれた熱間展伸加工性を有するので、作
業性および熱効率よく、板材、管材、線材、および丸棒
などに成形加工することができるなどの工業上有用な特
性を有するのである。
In addition, in order to evaluate the stretchability between the sleeves, cold rolling was performed at a processing rate of 10% for one pass, and the overall processing rate until cracking occurred was measured. Furthermore, for the purpose of evaluating weather resistance,
In accordance with JIS standards, we conducted a salt water fog test for 70 hours.
The weight loss per unit area after the test was measured. These measurement results are also shown in Table 1. As shown in Table 1, although Cu alloys 1 to 18 of the present invention and nickel silver 1 and 2 both exhibit excellent cold stretching workability and weather resistance, It is clear that in terms of properties, nickel silver 1 and 2 show significantly poor results, while inventive Cu alloys 1 to 18 all show very good results. As mentioned above, the Cu alloy of the present invention is
In addition to having the same white color as conventional nickel silver and excellent weather resistance, it also has excellent cold stretchability and hot stretchability not found in conventional nickel silver, making it easy to work with. It also has industrially useful properties such as being able to be formed into plate materials, tube materials, wire rods, round bars, etc. with good thermal efficiency.

Claims (1)

【特許請求の範囲】 1 Mn:7〜9.8%、Zn:15〜30%、Al:
0.1〜3%、Ni:0.2〜8.5%を含有し、残り
がCuと不可避不純物からなる組成(以上重量%)を有
することを特徴とする展伸加工性および耐候性にすぐれ
た白色Cu合金。 2 Mn:7〜9.8%、Zn:15〜30%、Al:
0.1〜3%、Ni:0.2〜8.5%を含有し、さら
にPb:0.2〜2%を含有し、残りがCuと不可避不
純物からなる組成(以上重量%)を有することを特徴と
する展伸加工性および耐候性にすぐれた白色Cu合金。 3 Mn:7〜9.8%、Zn:15〜30%、Al:
0.1〜3%、Ni:0.2〜8.5%を含有し、さら
にCoおよびFeのうちの1種または2種:0.2〜3
%を含有し、残りがCuと不可避不純物からなる組成(
以上重量%)を有することを特徴とする展伸加工性およ
び耐候性にすぐれた白色Cu合金。4 Mn:7〜9.
8%、Zn:15〜30%、Al:0.1〜3%、Ni
:0.2〜8.5%を含有し、さらにPb:0.2〜2
%、CoおよびFeのうちの1種または2種:0.2〜
3%を含有し、残りがCuと不可避不純物からなる組成
(以上重量%)を有することを特徴とする展伸加工性お
よび耐候性にすぐれた白色Cu合金。
[Claims] 1 Mn: 7-9.8%, Zn: 15-30%, Al:
0.1 to 3%, Ni: 0.2 to 8.5%, and the remainder is Cu and unavoidable impurities (weight %). Excellent white Cu alloy. 2 Mn: 7-9.8%, Zn: 15-30%, Al:
0.1 to 3%, Ni: 0.2 to 8.5%, further contains Pb: 0.2 to 2%, and the remainder is Cu and inevitable impurities (weight %). A white Cu alloy with excellent drawing workability and weather resistance. 3 Mn: 7-9.8%, Zn: 15-30%, Al:
0.1 to 3%, Ni: 0.2 to 8.5%, and one or two of Co and Fe: 0.2 to 3%.
%, with the remainder consisting of Cu and unavoidable impurities (
% by weight), the white Cu alloy has excellent drawing workability and weather resistance. 4 Mn: 7-9.
8%, Zn: 15-30%, Al: 0.1-3%, Ni
: Contains 0.2 to 8.5%, and further contains Pb: 0.2 to 2
%, one or two of Co and Fe: 0.2~
3%, and the remainder consists of Cu and unavoidable impurities (weight percent). A white Cu alloy with excellent drawability and weather resistance.
JP12813680A 1980-09-16 1980-09-16 White Cu alloy with excellent drawability and weather resistance Expired JPS6013416B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12813680A JPS6013416B2 (en) 1980-09-16 1980-09-16 White Cu alloy with excellent drawability and weather resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12813680A JPS6013416B2 (en) 1980-09-16 1980-09-16 White Cu alloy with excellent drawability and weather resistance

Publications (2)

Publication Number Publication Date
JPS5754239A JPS5754239A (en) 1982-03-31
JPS6013416B2 true JPS6013416B2 (en) 1985-04-06

Family

ID=14977288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12813680A Expired JPS6013416B2 (en) 1980-09-16 1980-09-16 White Cu alloy with excellent drawability and weather resistance

Country Status (1)

Country Link
JP (1) JPS6013416B2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976453A (en) * 1982-10-19 1984-05-01 Mitsubishi Metal Corp Cu alloy clad material for lead material of semiconductor device
DE4438485C2 (en) * 1994-10-28 1998-05-20 Wieland Werke Ag Use of a copper-zinc alloy for drinking water installations
KR100473366B1 (en) * 2002-10-30 2005-03-08 주식회사 풍산 Copper alloy for coin
KR101146356B1 (en) 2008-03-09 2012-05-17 미쓰비시 신도 가부시키가이샤 Silver-white copper alloy and process for producing the same
KR101285833B1 (en) * 2011-01-14 2013-07-12 충남대학교산학협력단 Copper alloys and copper alloys coins manufactured from the same
CN104284990B (en) * 2012-08-09 2016-12-07 Ykk株式会社 Securing member copper alloy
CN112011698A (en) * 2020-08-17 2020-12-01 西安斯瑞先进铜合金科技有限公司 Preparation method of copper strip of manganese white copper

Also Published As

Publication number Publication date
JPS5754239A (en) 1982-03-31

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