JP2001226724A - Method for producing bar stock or wire rod composed of lead-free free cutting phosphor bronze - Google Patents

Method for producing bar stock or wire rod composed of lead-free free cutting phosphor bronze

Info

Publication number
JP2001226724A
JP2001226724A JP2000031922A JP2000031922A JP2001226724A JP 2001226724 A JP2001226724 A JP 2001226724A JP 2000031922 A JP2000031922 A JP 2000031922A JP 2000031922 A JP2000031922 A JP 2000031922A JP 2001226724 A JP2001226724 A JP 2001226724A
Authority
JP
Japan
Prior art keywords
free
lead
phosphor bronze
cutting phosphor
wire rod
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
JP2000031922A
Other languages
Japanese (ja)
Inventor
Akihisa Shimizu
昭央 清水
Isamu Inoue
勇 井上
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.)
Fujii Seisakusho Kk
Original Assignee
Fujii Seisakusho Kk
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 Fujii Seisakusho Kk filed Critical Fujii Seisakusho Kk
Priority to JP2000031922A priority Critical patent/JP2001226724A/en
Priority to KR1020010006279A priority patent/KR20010078793A/en
Publication of JP2001226724A publication Critical patent/JP2001226724A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/04—Alloys based on copper with zinc as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/02—Alloys based on copper with tin as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing a bar stock or a wire rod composed of lead-free free cutting phosphor bronze having good machinability, tensile strength, hardness and plastic workability. SOLUTION: This bar stock or wire rod of lead-free free cutting phosphor bronze is prepared by forming lead-free free cutting phosphor bronze containing, by weight, 3.0 to 4.5% Sn, 1.5 to 4.5% Zn, 0.01 to 0.5% P, 0.01 to 0.5% Fe, 0.01 to 2.0% Sb, 0.1 to 2.5% Bi, and the balance copper and subjecting the above lead-free free cutting phosphor bronze to cold plastic working of 10 to 60%.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、鉛を含有しない快
削りん青銅からなる棒材又は線材の製造方法に関し、特
に、鉛を含有せず、機械的特性の良好な快削りん青銅か
らなる棒材又は線材の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a bar or wire made of free-cutting phosphor bronze containing no lead, and more particularly to a method of producing a free-cutting phosphor bronze containing no lead and having good mechanical properties. The present invention relates to a method for manufacturing a rod or a wire.

【０００２】[0002]

【従来の技術】従来より各種の電機部品、機械部品に
は、鉛を含む快削りん青銅、快削黄銅等が用いられてい
るが、前記した鉛は素材の切削性を向上させるためには
不可欠な元素であり、また、前記快削りん青銅は強度、
被削性などに優れ、銅合金固有の塑性加工性もかなりよ
く、現在も多く使用されている。2. Description of the Related Art Conventionally, lead-containing free-cutting phosphor bronze, free-cutting brass, and the like have been used for various electric parts and machine parts. It is an indispensable element, and the free-cut phosphor bronze has strength,
It is excellent in machinability and the like, and the plastic workability inherent to copper alloys is quite good.

【０００３】しかしながら、前記快削りん青銅に含有さ
れる鉛が人体や環境に影響があることが問題になってお
り、前記鉛の溶出がなく、前記快削りん青銅の被削性、
強度、塑性加工性等を有する無鉛快削りん青銅からなる
棒材又は線材が望まれている。However, there is a problem that the lead contained in the free-cutting phosphor bronze has an adverse effect on the human body and the environment.
A rod or wire made of lead-free free-cutting phosphor bronze having strength, plastic workability, and the like is desired.

【０００４】[0004]

【発明が解決しようとする課題】それ故、本発明の目的
は、前記した従来の問題点を解消した鉛を含有しない快
削りん青銅からなる棒材又は線材の製造方法を提供する
ことにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method for producing a bar or wire made of free-cutting phosphor bronze containing no lead and solving the above-mentioned conventional problems. .

【０００５】本発明の他の目的は、改良された被削性、
引張り強さ、硬さ（ＨＶ）及び塑性加工性を有する鉛を
含有しない快削りん青銅からなる棒材又は線材の製造方
法を提供することにある。Another object of the present invention is to provide improved machinability,
An object of the present invention is to provide a method for producing a bar or wire made of free-cutting phosphor bronze containing no lead and having tensile strength, hardness (HV) and plastic workability.

【０００６】[0006]

【課題を解決するための手段】本発明における無鉛快削
りん青銅の棒材又は線材は、３．０〜４．５ｗｔ％のＳ
ｎと、１．５〜４．５ｗｔ％のＺｎと、０．０１〜０．
５ｗｔ％のＰと、０．０１〜０．５ｗｔ％のＦｅと、
０．０１〜２．０ｗｔ％のＳｂと、０．１〜２．５ｗｔ
％のＢｉを含有し、残部が銅よりなる無鉛快削りん青銅
を形成した後、前記無鉛快削りん青銅を１０〜６０％の
冷間塑性加工を施すことにより形成される。According to the present invention, a bar or wire made of lead-free free-cutting phosphor bronze of the present invention has a sulfur content of 3.0 to 4.5 wt%.
n, 1.5 to 4.5 wt% Zn, and 0.01 to 0.
5 wt% P, 0.01-0.5 wt% Fe,
0.01-2.0 wt% Sb, 0.1-2.5 wt%
% Of Bi, and the rest is made of lead-free free-cutting phosphor bronze made of copper, and then formed by subjecting the lead-free free-cutting phosphor bronze to cold plastic working of 10 to 60%.

【０００７】[0007]

【発明の実施の形態】本発明における無鉛快削りん青銅
の棒材又は線材は、３．０〜４．５ｗｔ％のＳｎと、
１．５〜４．５ｗｔ％のＺｎと、０．０１〜０．５ｗｔ
％のＰと、０．０１〜０．５ｗｔ％のＦｅと、０．０１
〜２．０ｗｔ％のＳｂと、０．１〜２．５ｗｔ％のＢｉ
を含有し、残部が銅、或いは３．０〜９．０ｗｔ％のＳ
ｎと、０．０１〜６．０ｗｔ％のＺｎと、０．０１〜
０．５ｗｔ％のＰと、０．０１〜０．５ｗｔ％のＦｅ
と、 ０．０１〜２．０ｗｔ％のＳｂと、０．１〜２．
５ｗｔ％のＢｉを含有し、残部が銅よりなる無鉛快削り
ん青銅を形成した後、前記無鉛快削りん青銅を１０〜６
０％の冷間塑性加工を施すことにより形成される。BEST MODE FOR CARRYING OUT THE INVENTION The bar or wire of lead-free free-cutting phosphor bronze according to the present invention contains 3.0 to 4.5 wt% of Sn,
1.5 to 4.5 wt% Zn and 0.01 to 0.5 wt%
% P, 0.01 to 0.5 wt% Fe, 0.01%
-2.0 wt% Sb and 0.1-2.5 wt% Bi
With the balance being copper or 3.0-9.0 wt% S
n, 0.01 to 6.0 wt% Zn, 0.01 to
0.5 wt% P and 0.01-0.5 wt% Fe
And 0.01 to 2.0 wt% of Sb, and 0.1 to 2.
After forming a lead-free free-cutting phosphor bronze containing 5 wt% Bi and the balance being copper, the lead-free free-cutting phosphor bronze is added to the lead-free free-cutting phosphor bronze in 10 to 6 times.
It is formed by performing 0% cold plastic working.

【０００８】[0008]

【実施例】以下、実施例について説明する。実施例によ
る無鉛快削りん青銅の組成配分を表１に示し、ここで、
「ｂａｌ」とは残余を意味する。また、各合金は電気炉
において溶製し、金型鋳造により形成し、次いで、１０
〜６０％の冷間塑性加工率により棒材又は線材に成形し
た。Embodiments will be described below. Table 1 shows the composition distribution of the lead-free free-cutting phosphor bronze according to the example, where:
“Bal” means the remainder. Each alloy is melted in an electric furnace and formed by die casting.
A rod or wire was formed at a cold plastic working ratio of ６０60%.

【０００９】表１ 表２は前記各合金の切削抵抗（ｋｇｃｍ）、冷間塑性加
工率（％）、硬さ（ＨＲＢ）、硬さ（ＨＶ）及び引張り
強さ（Ｎ／ｍｍ２）を示している。Table 1 Table 2 shows the cutting resistance (kgcm), the cold plastic working ratio (%), the hardness (HRB), the hardness (HV) and the tensile strength (N / mm 2 ) of each alloy.

【００１０】表２ 前記実施例から明らかなように、本発明においては鉛の
代わりにＢｉを添加しており、また、合金組織を微細化
して更なる被削性と強度を得るためにＦｅ及びＳｂを添
加している。ＢｉはＰｂと同様に金属中に固溶せずに被
削性を向上させるが、２．５ｗｔ％を越えると、前記被
削性は向上するものの冷間塑性加工性は悪くなり、ま
た、０．１ｗｔ％未満であると前記被削性は悪化する。Table 2 As is clear from the above examples, Bi is added in place of lead in the present invention, and Fe and Sb are added to refine the alloy structure to obtain further machinability and strength. I have. Bi improves the machinability without forming a solid solution in the metal like Pb, but when it exceeds 2.5 wt%, the machinability is improved but the cold plastic workability is deteriorated. If the content is less than 0.1 wt%, the machinability deteriorates.

【００１１】さらに、Ｆｅは合金の組織を微細化すると
共に、前記被削性させる。しかし、０．０１〜０．５ｗ
ｔ％の範囲外では前記被削性及び前記冷間塑性加工性が
悪くなる。同様に、Ｓｂは素地を強化し機械的強度を向
上させるが、０．０１〜２．０ｗｔ％の範囲外では前記
被削性が悪くなる。Further, Fe refines the structure of the alloy and makes the alloy machinable. However, 0.01-0.5w
Outside the range of t%, the machinability and the cold plastic workability deteriorate. Similarly, Sb strengthens the base and improves the mechanical strength, but when the content is out of the range of 0.01 to 2.0 wt%, the machinability deteriorates.

【００１２】[0012]

【発明の効果】本発明においては、３．０〜４．５ｗｔ
％のＳｎと、１．５〜４．５ｗｔ％のＺｎと、０．０１
〜０．５ｗｔ％のＰと、０．０１〜０．５ｗｔ％のＦｅ
と、０．０１〜２．０ｗｔ％のＳｂと、０．１〜２．５
ｗｔ％のＢｉを含有し、残部が銅よりなる無鉛快削りん
青銅を形成しているので、被削性、引張り強さ及び硬さ
に加えて塑性加工性を向上させることができ、前記無鉛
快削りん青銅を１０〜６０％の冷間塑性加工を施すこと
が可能となり、無鉛快削りん青銅の棒材又は線材を得る
ことができる。According to the present invention, 3.0 to 4.5 wt.
% Sn, 1.5 to 4.5 wt% Zn, and 0.01%
-0.5 wt% P and 0.01-0.5 wt% Fe
And 0.01 to 2.0 wt% of Sb and 0.1 to 2.5
Since lead-free free-cutting phosphor bronze containing wt% Bi and the balance of copper is formed, plastic workability can be improved in addition to machinability, tensile strength and hardness. Free-cutting phosphor bronze can be subjected to cold plastic working of 10 to 60%, and a bar or wire of lead-free free-cutting phosphor bronze can be obtained.

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 ３．０〜４．５ｗｔ％のＳｎと、１．５
〜４．５ｗｔ％のＺｎと、０．０１〜０．５ｗｔ％のＰ
と、０．０１〜０．５ｗｔ％のＦｅと、０．０１〜２．
０ｗｔ％のＳｂと、０．１〜２．５ｗｔ％のＢｉを含有
し、残部が銅よりなる無鉛快削りん青銅を形成した後、
前記無鉛快削りん青銅を１０〜６０％の冷間塑性加工を
施すことを特徴とする無鉛快削りん青銅の棒材又は線材
の製造方法。1. An alloy containing 3.0 to 4.5 wt% of Sn and 1.5 wt.
~ 4.5wt% Zn and 0.01 ~ 0.5wt% P
And 0.01 to 0.5 wt% of Fe, and 0.01 to 2.
After forming lead-free free-cutting phosphor bronze containing 0 wt% Sb and 0.1 to 2.5 wt% Bi and the balance being copper,
A method for producing a lead-free free-cutting phosphor bronze rod or wire rod, wherein the lead-free free-cutting phosphor bronze is subjected to cold plastic working of 10 to 60%. 【請求項２】 ３．０〜９．０ｗｔ％のＳｎと、０．０
１〜６．０ｗｔ％のＺｎと、０．０１〜０．５ｗｔ％の
Ｐと、０．０１〜０．５ｗｔ％のＦｅと、０．０１〜
２．０ｗｔ％のＳｂと、０．１〜２．５ｗｔ％のＢｉを
含有し、残部が銅よりなる無鉛快削りん青銅を形成した
後、前記無鉛快削りん青銅を１０〜６０％の冷間塑性加
工を施すことを特徴とする無鉛快削りん青銅の棒材又は
線材の製造方法。2. The method according to claim 1, wherein 3.0 to 9.0 wt% of Sn and 0.0
1 to 6.0 wt% Zn, 0.01 to 0.5 wt% P, 0.01 to 0.5 wt% Fe, 0.01 to 0.5 wt%
After forming lead-free free-cutting phosphor bronze containing 2.0 wt% of Sb and 0.1 to 2.5 wt% of Bi and the balance being copper, the lead-free free-cutting phosphor bronze is cooled to 10 to 60% of cold. A method for producing a lead-free free-cutting phosphor bronze rod or wire rod, which comprises performing inter-plastic working.
JP2000031922A 2000-02-09 2000-02-09 Method for producing bar stock or wire rod composed of lead-free free cutting phosphor bronze Pending JP2001226724A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000031922A JP2001226724A (en) 2000-02-09 2000-02-09 Method for producing bar stock or wire rod composed of lead-free free cutting phosphor bronze
KR1020010006279A KR20010078793A (en) 2000-02-09 2001-02-08 Producing method of bar or wire material which is made of non-lead phosphor bronze and which is easily sharpened

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000031922A JP2001226724A (en) 2000-02-09 2000-02-09 Method for producing bar stock or wire rod composed of lead-free free cutting phosphor bronze

Publications (1)

Publication Number Publication Date
JP2001226724A true JP2001226724A (en) 2001-08-21

Family

ID=18556601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000031922A Pending JP2001226724A (en) 2000-02-09 2000-02-09 Method for producing bar stock or wire rod composed of lead-free free cutting phosphor bronze

Country Status (2)

Country Link
JP (1) JP2001226724A (en)
KR (1) KR20010078793A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2005093108A1 (en) * 2004-03-29 2008-02-14 サンエツ金属株式会社 Brass
CN115679149A (en) * 2022-11-10 2023-02-03 广州番禺职业技术学院 High-brightness high-corrosion-resistance antibacterial decorative tin bronze alloy and preparation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200454072Y1 (en) * 2010-12-20 2011-06-15 주식회사 한국번디 heat transmitter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01136943A (en) * 1987-10-16 1989-05-30 Imi Yorkshire Fittings Ltd Alloy
JPH04231431A (en) * 1990-05-15 1992-08-20 American Teleph & Telegr Co <Att> Mechanically processable copper-containing alloy for forging
JPH05279771A (en) * 1992-03-31 1993-10-26 Hitachi Alloy Kk Corrosion resistant copper alloy
JPH06264166A (en) * 1993-01-13 1994-09-20 Kobe Steel Ltd Copper-base alloy excellent in corrosion resistance, machinability and workability
JPH07310133A (en) * 1994-05-12 1995-11-28 Chuetsu Gokin Chuko Kk Leadless free-cutting brass alloy
JPH08120369A (en) * 1994-10-20 1996-05-14 Tabuchi:Kk Lead free/free cutting bronze alloy
JPH1136026A (en) * 1997-07-15 1999-02-09 Nippon Seidou Kk Copper base alloy

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01136943A (en) * 1987-10-16 1989-05-30 Imi Yorkshire Fittings Ltd Alloy
JPH04231431A (en) * 1990-05-15 1992-08-20 American Teleph & Telegr Co <Att> Mechanically processable copper-containing alloy for forging
JPH05279771A (en) * 1992-03-31 1993-10-26 Hitachi Alloy Kk Corrosion resistant copper alloy
JPH06264166A (en) * 1993-01-13 1994-09-20 Kobe Steel Ltd Copper-base alloy excellent in corrosion resistance, machinability and workability
JPH07310133A (en) * 1994-05-12 1995-11-28 Chuetsu Gokin Chuko Kk Leadless free-cutting brass alloy
JPH08120369A (en) * 1994-10-20 1996-05-14 Tabuchi:Kk Lead free/free cutting bronze alloy
JPH1136026A (en) * 1997-07-15 1999-02-09 Nippon Seidou Kk Copper base alloy

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2005093108A1 (en) * 2004-03-29 2008-02-14 サンエツ金属株式会社 Brass
CN115679149A (en) * 2022-11-10 2023-02-03 广州番禺职业技术学院 High-brightness high-corrosion-resistance antibacterial decorative tin bronze alloy and preparation method thereof
CN115679149B (en) * 2022-11-10 2023-07-28 广州番禺职业技术学院 High-brightness high-corrosion-resistance antibacterial decorative tin bronze alloy and preparation method thereof

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Publication number Publication date
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