JPS63128142A - Free-cutting copper alloy - Google Patents
Free-cutting copper alloyInfo
- Publication number
- JPS63128142A JPS63128142A JP27195586A JP27195586A JPS63128142A JP S63128142 A JPS63128142 A JP S63128142A JP 27195586 A JP27195586 A JP 27195586A JP 27195586 A JP27195586 A JP 27195586A JP S63128142 A JPS63128142 A JP S63128142A
- Authority
- JP
- Japan
- Prior art keywords
- free
- copper alloy
- cutting copper
- strength
- heat resistance
- 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
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 11
- 239000010949 copper Substances 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 4
- 229910052718 tin Inorganic materials 0.000 claims abstract description 4
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 3
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 3
- 229910052790 beryllium Inorganic materials 0.000 claims abstract description 3
- 229910052796 boron Inorganic materials 0.000 claims abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 3
- 229910052709 silver Inorganic materials 0.000 claims abstract description 3
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims 1
- 229910052787 antimony Inorganic materials 0.000 abstract description 2
- 229910052725 zinc Inorganic materials 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 3
- 229910052745 lead Inorganic materials 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 description 11
- 239000000956 alloy Substances 0.000 description 11
- 229910001369 Brass Inorganic materials 0.000 description 4
- 239000010951 brass Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Landscapes
- Conductive Materials (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野］
本発明は、油圧部品、機械部品、バルブなどに適用でき
る、強度、耐熱性及び被削性に優れた銅合金に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a copper alloy that has excellent strength, heat resistance, and machinability and can be applied to hydraulic parts, mechanical parts, valves, and the like.
［従来の技術］
従来、軸受け、歯車、ねじ、バルブなどの機械部品、油
圧部品などの素材には、以下の様な特性が必要とされて
いる。[Prior Art] Conventionally, materials for mechanical parts such as bearings, gears, screws, valves, hydraulic parts, etc. are required to have the following properties.
（１）強度に優れること
（２）被剛性に優れること
（３）耐熱性に優れること
（３）加工性の良いこと
（５）安価なこと
一般に上記用途には、被剛性を向上させた快削黄銅が多
く使用されている。(1) Excellent strength (2) Excellent stiffness (3) Excellent heat resistance (3) Good workability (5) Inexpensive Cut brass is often used.
［発明が解決しようとする問題点］
しかしながら、黄銅は十分な強度をもっておらず高速高
荷重で使用される場合には温度上昇に伴ない強度が劣化
し、ギア、軸受は等の機械部品が損傷を受けることなど
の問題があった。[Problems to be solved by the invention] However, brass does not have sufficient strength, and when used at high speeds and high loads, its strength deteriorates as the temperature rises, causing damage to mechanical parts such as gears and bearings. There were problems such as receiving
この様な状況から、被剛性と同時に強度、耐熱性に優れ
、しかも安価な材料が望まれていた。Under these circumstances, there has been a desire for a material that is not only rigid but also has excellent strength and heat resistance, and is also inexpensive.
［問題点を解決するための手段］
本発明は、上記の事情に鑑みてなされたちのであり、従
来の快削黄銅の強度、耐熱性を改善し、しかも安価な銅
合金を提供しようとするものである。[Means for Solving the Problems] The present invention has been made in view of the above circumstances, and aims to improve the strength and heat resistance of conventional free-cutting brass and provide an inexpensive copper alloy. It is.
すなわち、本発明はＺｎ１０〜４５ｗｔ％、Ｎｉ０．４
〜４．０ｗｔ％、ｓ ｒ ｏ、ｔ 〜１．ｏ ｗｔ％、
ＰｂＯ１１〜４．０ｗｔ％を含み、残部Ｃｕ及び不可避
的不純物からなる快削銅合金、並びにＺｎ１０〜４５ｗ
ｔ％、Ｎｒｏ、４〜４．０ｗｔ％、 Ｓｉ０．１〜１．
０ｗｔ％、 Ｐｂ０．１〜４．０ｗｔ％及び他に、Ｐｌ
ＡＳ、Ｓｎ、Ｃｒ、Ｍｇ、Ｍｎ、Ｓｂ、Ｆｅ。That is, the present invention contains 10 to 45 wt% of Zn and 0.4 wt% of Ni.
~4.0 wt%, s r o, t ~1. o wt%,
A free-cutting copper alloy containing 11 to 4.0 wt% of PbO and the balance consisting of Cu and unavoidable impurities, and 10 to 45 w of Zn
t%, Nro, 4-4.0wt%, Si0.1-1.
0wt%, Pb0.1-4.0wt% and others, Pl
AS, Sn, Cr, Mg, Mn, Sb, Fe.
Ｃｏ、 Ａｌ、Ｔｉ、 Ｚｒ、 ３ｅ、 Ａｇ、Ｂ、希
土類元素の内何れか１種または２種以上を合計０、０１
〜３．０ｗｔ％を含み、残部Ｃｕ及び不可避的不純物か
らなる快削銅合金である。Co, Al, Ti, Zr, 3e, Ag, B, any one or two or more of rare earth elements in a total of 0, 01
It is a free-cutting copper alloy containing up to 3.0 wt% of Cu, with the remainder being Cu and unavoidable impurities.
本発明合金を構成する合金成分及び内容の限定理由を説
明する。The reasons for limiting the alloy components and contents constituting the alloy of the present invention will be explained.
ＣｕとＺｎは本発明合金の基本合金成分であり、所定量
において加工性、機械的強度に優れていると共に、良好
な熱伝導性をも有する。Cu and Zn are the basic alloy components of the alloy of the present invention, and have excellent workability and mechanical strength in predetermined amounts, as well as good thermal conductivity.
Ｚｎ含有量を１０〜４５ｗｔ％とする理由は、Ｚｎ含有
量が１０ｗｔ％未満では加工性が悪くなり、Ｚｎ含有聞
が４５％を越えると十分な機械的強度が得られないから
である。The reason why the Zn content is set to 10 to 45 wt% is that if the Zn content is less than 10 wt%, workability will deteriorate, and if the Zn content exceeds 45%, sufficient mechanical strength will not be obtained.
また、Ｎｉ及び３ｉを添加することにより黄銅中にＮｉ
−３ｉ系の金属間化合物を析出させ、強度、耐熱性を向
上させる。Ｎｉ含有量を０．４〜４．０ｗｔ％とするの
は、Ｎｉ含有量が、０．４ｗｔ％未満では３ｉを１．０
ｗｔ％添加しても、十分な強度が得られず、逆にＮｉ含
有量が４．０ｗｔ％を越えると加工性が劣化するためで
ある。In addition, by adding Ni and 3i, Ni
-3i-based intermetallic compounds are precipitated to improve strength and heat resistance. The reason for setting the Ni content to 0.4 to 4.0 wt% is that if the Ni content is less than 0.4 wt%, 3i is 1.0.
This is because even if Ni is added by wt%, sufficient strength cannot be obtained, and conversely, if the Ni content exceeds 4.0 wt%, workability deteriorates.
３ｉ含有量を０．１〜１．０ｗｔ％とするのは、３ｉ含
有量が、０．１＊ｔ％未満では Ｎｉを４．０ｗｔ％添
加しても十分な強度が得られず、逆にＳｉ含有量が、１
．０ｗｔ％を越えると加工性が劣化するためである。The reason why the 3i content is set to 0.1 to 1.0 wt% is that if the 3i content is less than 0.1*t%, sufficient strength cannot be obtained even if 4.0 wt% of Ni is added. Si content is 1
．． This is because if it exceeds 0 wt%, workability deteriorates.
ざらにＰｂは被剛性を向上させる。Ｐｂ含有量を０．１
〜４．０ｗｔ％とする理由は、Ｐｂ含有量が０．１ｗｔ
％未満では被剛性の向上が認められず、４、Ｏｖｔ％を
越えると加工性が劣化するからである。In general, Pb improves stiffness. Pb content 0.1
The reason for setting it to ~4.0wt% is that the Pb content is 0.1wt%.
This is because if it is less than 4.0%, no improvement in rigidity will be observed, and if it exceeds 4.0%, the workability will deteriorate.
また前記所定量のＰ、Ａｓ、Ｓｎ、Ｃｒ。Further, the predetermined amounts of P, As, Sn, and Cr.
Ｍｇ、Ｍｎ、ｓｂ、Ｆｅ、Ｃｏ５Ａｌ、Ｔｉ。Mg, Mn, sb, Fe, Co5Al, Ti.
Ｚｒ、Ｂｅ、ＡＱ、Ｂ、希土類元素は本発明合金の機械
的強度の向上を図るものであるが、その含有量がｏ、ｏ
ｉ ｗｔ％未満では、その添加による効果が薄く、逆に
３．０ｗｔ％を越えるとその効果が飽和し、加工性が劣
化する為である。Zr, Be, AQ, B, and rare earth elements are intended to improve the mechanical strength of the alloy of the present invention.
This is because if it is less than i wt%, the effect of its addition is weak, and if it exceeds 3.0 wt%, the effect is saturated and workability deteriorates.
以下に本発明合金を実施例で説明する。The alloy of the present invention will be explained below using examples.
［実施例］
第１表に示される本発明合金及び比較合金の各種成分の
インゴットを高周波溶解炉で溶製後、８００°Ｃにて熱
間圧延し、厚さ、８ｍｍの板とした。次にこの板を通常
の酸洗処理した後、冷間圧延で厚さ２．０ｍｍとした。[Example] Ingots of various components of the present invention alloy and comparative alloy shown in Table 1 were melted in a high frequency melting furnace, and then hot rolled at 800°C to form a plate with a thickness of 8 mm. Next, this plate was subjected to a usual pickling treatment and then cold rolled to a thickness of 2.0 mm.
これをざらに５００℃にて１時間の焼鈍を施した後、冷
間圧延で厚さ０．５ｍｍとし、各種試料を作製した。。This was roughly annealed at 500° C. for 1 hour and then cold rolled to a thickness of 0.5 mm to produce various samples. .
次に、この試料について、機械的強度、耐熱性、及び切
削性試験を実施した。機械的強度としては、引張試験を
行い引張強ざを求めた。また耐熱性については、各試料
を２００℃〜６００℃まで５０℃間隔で６０分間焼鈍を
行い、硬さを測定し、軟化特性を調査した後、初期（焼
鈍前）硬さの８０％の硬さを示す温度を軟化温度とした
。Next, mechanical strength, heat resistance, and machinability tests were conducted on this sample. As for mechanical strength, a tensile test was conducted to determine the tensile strength. Regarding heat resistance, each sample was annealed for 60 minutes at 50°C intervals from 200°C to 600°C, the hardness was measured, and the softening characteristics were investigated. The temperature at which the softening temperature occurred was defined as the softening temperature.
また切削性としては、切削抵抗を測定することにより評
価を行なった。切削性試験は第１図に示す様に、円板４
の中心にバイト３を取付け、これに歪ゲージ１，２をつ
けて行なった。これによりバイト３に荷重がかかると歪
ゲージ１には圧縮力が、歪ゲージ２には引張力がかかり
、この時の抵抗を検出して評価した。Moreover, the machinability was evaluated by measuring the cutting resistance. The machinability test was conducted using disk 4 as shown in Figure 1.
A cutting tool 3 was attached to the center of the tool, and strain gauges 1 and 2 were attached to it. As a result, when a load was applied to the cutting tool 3, a compressive force was applied to the strain gauge 1, and a tensile force was applied to the strain gauge 2, and the resistance at this time was detected and evaluated.
尚、切削条件は回転数５６０ｒｌ）ｍ、 送り速度０．
１ｍｍ、すくい角８°切り込み１．９ｍｍで主分力を測
定した。The cutting conditions were: rotation speed 560rl)m, feed rate 0.
The principal component force was measured at a cutting depth of 1 mm, a rake angle of 8°, and a cutting depth of 1.9 mm.
第１表
第１表に示すように、快削黄銅は、被剛性は優れるもの
の、強度、耐熱性は劣ることがわかる。As shown in Table 1, free-cutting brass has excellent rigidity but is inferior in strength and heat resistance.
これに対して本発明合金は、強度、耐熱性及び被削性の
いずれも優れることがわかる。ざらに副成分を添加する
ことにより強度、耐熱性が一層向上することがわかる。In contrast, it can be seen that the alloy of the present invention has excellent strength, heat resistance, and machinability. It can be seen that the strength and heat resistance are further improved by adding subcomponents to Zara.
［発明の効果］
以上の様に、本発明合金は、機械部品、油圧部品おるい
はバルブなどに使用することができる強度、耐熱性に優
れた銅合金として最適な合金である。[Effects of the Invention] As described above, the alloy of the present invention is an optimal alloy as a copper alloy with excellent strength and heat resistance that can be used for mechanical parts, hydraulic parts, valves, etc.
第１図は切削性試験装置の説明図である。 １．２・・・歪ゲージ ３・・・バイト ４・・・円板 FIG. 1 is an explanatory diagram of the machinability test device. 1.2...Strain gauge 3...Part-time job 4...disk
Claims (2)
％、Ｓｉ０．１〜１．０ｗｔ％、Ｐｂ０．１〜４．０ｗ
ｔ％を含み、残部Ｃｕ及び不可避的不純物からなる快削
銅合金。(1) Zn10-45wt%, Ni0.4-4.0wt
%, Si0.1-1.0wt%, Pb0.1-4.0w
A free-cutting copper alloy containing t% and the balance consisting of Cu and unavoidable impurities.
％、Ｓｉ０．１〜１．０ｗｔ％、Ｐｂ０．１〜４．０ｗ
ｔ％及び他に、Ｐ、Ａｓ、Ｓｎ、Ｃｒ、Ｍｇ、Ｍｎ、Ｓ
ｂ、Ｆｅ、Ｃｏ、Ａｌ、Ｔｉ、Ｚｒ、Ｂｅ、Ａｇ、Ｂ、
希土類元素の内何れか１種または２種以上を合計０．０
１〜３．０ｗｔ％を含み、残部Ｃｕ及び不可避的不純物
からなる快削銅合金。(2) Zn10-45wt%, Ni0.4-4.0wt
%, Si0.1-1.0wt%, Pb0.1-4.0w
t% and others, P, As, Sn, Cr, Mg, Mn, S
b, Fe, Co, Al, Ti, Zr, Be, Ag, B,
A total of 0.0 of any one or two or more rare earth elements
A free-cutting copper alloy containing 1 to 3.0 wt% of Cu, with the remainder being Cu and unavoidable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27195586A JPS63128142A (en) | 1986-11-17 | 1986-11-17 | Free-cutting copper alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27195586A JPS63128142A (en) | 1986-11-17 | 1986-11-17 | Free-cutting copper alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63128142A true JPS63128142A (en) | 1988-05-31 |
Family
ID=17507141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27195586A Pending JPS63128142A (en) | 1986-11-17 | 1986-11-17 | Free-cutting copper alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63128142A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4944915A (en) * | 1988-12-21 | 1990-07-31 | Poongsan Corporation | Copper alloys for electrical and electronic parts and its manufacturing process |
| DE102009038657A1 (en) * | 2009-08-18 | 2011-02-24 | Aurubis Stolberg Gmbh & Co. Kg | brass alloy |
| CN102002610A (en) * | 2010-10-09 | 2011-04-06 | 苏州撼力铜合金材料有限公司 | Copper alloy for piston sleeve of diesel engine |
| US8273192B2 (en) | 2008-06-11 | 2012-09-25 | Xiamen Lota International Co., Ltd. | Lead-free, bismuth-free free-cutting phosphorous brass alloy |
| CN109266900A (en) * | 2018-12-07 | 2019-01-25 | 宁波艾维洁具有限公司 | A kind of Anti-dezincificationyellow yellow brass alloy of lead-free corrosion resistant and preparation method thereof |
| CN109563568A (en) * | 2016-08-15 | 2019-04-02 | 三菱伸铜株式会社 | Free-cutting copper alloy casting and method for producing free-cutting copper alloy casting |
-
1986
- 1986-11-17 JP JP27195586A patent/JPS63128142A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4944915A (en) * | 1988-12-21 | 1990-07-31 | Poongsan Corporation | Copper alloys for electrical and electronic parts and its manufacturing process |
| US8273192B2 (en) | 2008-06-11 | 2012-09-25 | Xiamen Lota International Co., Ltd. | Lead-free, bismuth-free free-cutting phosphorous brass alloy |
| DE102009038657A1 (en) * | 2009-08-18 | 2011-02-24 | Aurubis Stolberg Gmbh & Co. Kg | brass alloy |
| CN102002610A (en) * | 2010-10-09 | 2011-04-06 | 苏州撼力铜合金材料有限公司 | Copper alloy for piston sleeve of diesel engine |
| CN109563568A (en) * | 2016-08-15 | 2019-04-02 | 三菱伸铜株式会社 | Free-cutting copper alloy casting and method for producing free-cutting copper alloy casting |
| CN109266900A (en) * | 2018-12-07 | 2019-01-25 | 宁波艾维洁具有限公司 | A kind of Anti-dezincificationyellow yellow brass alloy of lead-free corrosion resistant and preparation method thereof |
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