JPS63277732A - Corrosion resistant special brass alloy - Google Patents
Corrosion resistant special brass alloyInfo
- Publication number
- JPS63277732A JPS63277732A JP11172387A JP11172387A JPS63277732A JP S63277732 A JPS63277732 A JP S63277732A JP 11172387 A JP11172387 A JP 11172387A JP 11172387 A JP11172387 A JP 11172387A JP S63277732 A JPS63277732 A JP S63277732A
- Authority
- JP
- Japan
- Prior art keywords
- brass alloy
- special brass
- corrosion resistance
- alloy
- corrosion
- 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
- 230000007797 corrosion Effects 0.000 title claims abstract description 25
- 238000005260 corrosion Methods 0.000 title claims abstract description 25
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 20
- 239000000956 alloy Substances 0.000 title claims abstract description 20
- 229910001369 Brass Inorganic materials 0.000 title claims abstract description 11
- 239000010951 brass Substances 0.000 title claims abstract description 11
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052745 lead Inorganic materials 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 229910052718 tin Inorganic materials 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
黄銅は、一般に耐食性にすぐれ、８１械的性質も良好で
あり、青銅に比較して価格も安く、色沢も良く、きわめ
て広く一般に使用されている。しかしながらパルプ部品
、ポンプ用部品、水道用配管部品等に使用された場合に
、海水や汚染水又は温水に対して脱亜鉛腐食が着しく発
生するという問題があった。DETAILED DESCRIPTION OF THE INVENTION Brass generally has excellent corrosion resistance, 81 good mechanical properties, is cheaper than bronze, and has a good color luster, so it is extremely widely used. However, when used in pulp parts, pump parts, water piping parts, etc., there is a problem in that dezincification corrosion occurs frequently in seawater, contaminated water, or hot water.
本発明は、このような問題を解消するため、Ｃｕ、Ｚｎ
を主成分として、ＡＺ−Ｆｅ−Ｎｉ、Ｓｉ、Ｐｂ。In order to solve such problems, the present invention uses Cu, Zn
The main components are AZ-Fe-Ni, Si, and Pb.
Ｓｎを所定量添加することにより耐食性を大幅に改善し
た特殊黄銅合金を提供することを目的としたものである
。The purpose of this invention is to provide a special brass alloy whose corrosion resistance is significantly improved by adding a predetermined amount of Sn.
次に本発明合金の成分範囲について更に詳細に説明する
。Next, the range of ingredients of the alloy of the present invention will be explained in more detail.
ＡＩは亜鉛当量が高く、β相形成促進元素で、ＡＩ添加
によりｔｍの引張強さ、耐力および硬さを向上させ、耐
摩耗性、耐キャビテーシ１ンエロージ■ン性および耐食
性を向上させ、なおかつＮｉ５Ｆｅ、Ｓｉと結合して粒
状の金属間化合物を析出させ、耐食性を一段と向上させ
る。添加量が３％を越えるとβ相が多量に晶出し、耐食
性を著しく低下させ、０．１％以下では効果は認められ
ない。AI has a high zinc equivalent and is an element that promotes β phase formation. Addition of AI improves the tensile strength, yield strength, and hardness of tm, and improves wear resistance, cavitation resistance, erosion resistance, and corrosion resistance. , combines with Si to precipitate granular intermetallic compounds, further improving corrosion resistance. If the amount added exceeds 3%, a large amount of β phase will crystallize, significantly reducing corrosion resistance, and if the amount is less than 0.1%, no effect will be observed.
Ｆｅは黄銅において結晶粒微細化の作用があり、またＮ
ｉと共存して耐食性を向上させ、１％以上では逆に偏析
が生じ易くなり、耐食性、機械的性質の伸びを低下させ
るため、０．１〜１．０％に限定する。Fe has the effect of refining crystal grains in brass, and N
It coexists with i to improve corrosion resistance, and if it exceeds 1%, segregation tends to occur and decreases corrosion resistance and mechanical property elongation, so it is limited to 0.1 to 1.0%.
Ｎｉは亜鉛当量が負であるので、α相を増加させ、耐食
性を上げるが、３％を越えると価格が上昇することもさ
る事ながら、熱間加工性を悪くし、なおかつＦｅとの凝
集により偏析が生じやすくなり、０．３％以下では効果
は認められない。Since Ni has a negative zinc equivalent, it increases the α phase and improves corrosion resistance, but if it exceeds 3%, not only will the price increase, but it will also worsen hot workability and cause agglomeration with Fe. Segregation tends to occur, and no effect is observed at 0.3% or less.
ＳｉはＮｉ、Ｆｅと共存して粒状の金属間化合物を析出
させ、強度向上、耐食性向上に寄与し、１．５％以上で
は偏析が起こりやすく、伸びを者しく低下させるので、
０．１％〜１．５％に限定する。Si coexists with Ni and Fe to precipitate granular intermetallic compounds, contributing to improved strength and corrosion resistance, and if it exceeds 1.5%, segregation tends to occur and elongation is significantly reduced.
Limited to 0.1% to 1.5%.
ｐｂは合金の被削性の向上を計るため添加するが、３％
以上になると伸びが著しく低下するため、０．２〜３．
０％に限定する。Pb is added to improve the machinability of the alloy, but at 3%
If the value exceeds 0.2 to 3, the elongation will decrease significantly.
Limited to 0%.
Ｓｎは耐食性を上げるため、最も効果のある元素で、β
相中に選択固溶してβ相の脱亜鉛腐食を抑制する。Ｓｎ
は固溶度以上に添加するとＣｕ 、 Ｓ ｎ相の出現に
より非常に脆化するので、０．３％〜２％とする。Sn is the most effective element for increasing corrosion resistance, and
Selectively dissolves in the phase to suppress dezincification corrosion in the β phase. Sn
If added in an amount exceeding the solid solubility, Cu and Sn will become extremely brittle due to the appearance of the Sn phase, so it is set at 0.3% to 2%.
Ｃｕは黄銅においてα相を多く析出させ、あまり多量に
添加すると耐食性は良くなるが、引張強さ、硬さが低下
し、α相の析出量を５０〜９０％にコントロールし、Ｒ
械的性質、経済性を考慮してＣｕ７５〜６０％とする。Cu precipitates a large amount of α phase in brass, and adding too much improves corrosion resistance, but reduces tensile strength and hardness.
Cu is set at 75 to 60% in consideration of mechanical properties and economical efficiency.
以下に実施例を示す。Examples are shown below.
第１表は、本発明の各実施例合金の化学組成と従来例高
力黄銅合金との機械的性質を表にして示したものである
。Table 1 shows the chemical composition of each example alloy of the present invention and the mechanical properties of the conventional high strength brass alloy.
この第１表によ°れば、本発明の各実施例合金はそのＩ
！械的性質において、従来例合金と比較して何ら遜色の
ないことが分かる。According to this Table 1, each example alloy of the present invention has its I.
! It can be seen that there is no inferiority in mechanical properties compared to conventional alloys.
ｆ５２表は、第１表に示した本発明実施例合金と従来例
合金とについて腐食試験を行ない、その結果を表にして
示したものである。Table f52 is a table showing the results of corrosion tests conducted on the alloys of the present invention and the conventional alloys shown in Table 1.
この！＠２表の試験結果によれば、本発明合金は腐食減
量が看しく小さくなっており、脱亜鉛腐食において全面
発生はなく、斑点状に生じ、然もその深さも非常に小さ
くなっていることが分かる。this! According to the test results in Table 2, the corrosion loss of the alloy of the present invention is surprisingly small, and dezincing corrosion does not occur on the entire surface, but occurs in spots, and the depth is also very small. I understand.
第１図及び第２図は、第２表の試験結果を明確にするた
めに、本発明実施例合金Ｎ００４と従来例合金Ｎ００２
とについて、各試験片の表面側の一部縦断面を顕ａｍ組
織写真で示したものである。これら写真において薄暗色
部は脱亜鉛腐食層１を示す。In order to clarify the test results in Table 2, Figures 1 and 2 show the example alloy N004 of the present invention and the conventional alloy N002.
A partial vertical section of the surface side of each test piece is shown as a microscopic microstructure photograph. In these photographs, the dark colored areas indicate the dezincing corrosion layer 1.
第１図に示す本発明合金の脱亜鉛腐食層１は斑点状に散
在し、その表面２からの深さは約０．２ｘｚ程度である
。それに対し、第２図に示す従来例合金の脱亜鉛腐食層
１は表面２がら約０．３５ｍｍの深さで全面に亙り形成
されていることが分かる。The dezincification corrosion layer 1 of the alloy of the present invention shown in FIG. 1 is scattered in spots, and the depth from the surface 2 is about 0.2xz. In contrast, it can be seen that the dezincification corrosion layer 1 of the conventional alloy shown in FIG. 2 is formed over the entire surface at a depth of about 0.35 mm from the surface 2.
ｆ５ ２ 表
〔シ（験条件〕
ｉ）試験片寸法 φ１９Ｘ２０．−
１ｉ）腐食液 塩化第二４１％溶液；；；）試験
温度 ７５℃±２℃
ｉｖ）試験時間 ２４時闇
ｖ）ｇ食′ＫＬｊｉ ５００ｃｃ（比ａｆ１２８
．４ｃｃ／ｃ１２）f5 2 Table (Test conditions) i) Test piece dimensions φ19X20. - 1i) Corrosive liquid: 41% solution of chloride; ;;) Test temperature: 75°C ± 2°C iv) Test time: 24 hours darkness v) G food 'KLji 500cc (ratio af128
．． 4cc/c12)
Ｐｔ５１図は腐食ＸＸ、験を行なった本発明特ａ黄銅合
金（Ｎｏ、４）！Ｊ、験片の表面ａ縦断面図の顕微鏡組
織写真であり、第２図は従来の高力′ｇｔ銅介金（Ｎｏ
、２）の腐食試験を行なった試験片の表面側縦断面図の
顕全鏡ｊ１１織写真である。The Pt51 figure is the special a brass alloy of the present invention (No. 4) that has been tested for corrosion XX! J is a microscopic microstructure photograph of the vertical cross-sectional view of the surface a of the specimen, and Figure 2 is a conventional high-strength 'gt copper-metallic (No.
, 2) is a microscope photograph of a vertical cross-sectional view of the surface side of the test piece subjected to the corrosion test of 2).
Claims (1)
０％、Ｆｅ：０．１〜１．０％、Ｎｉ：０．３〜３．０
％、Ｓｉ：０．１〜１．５％Ｐｂ：０．２〜３．０％、
Ｓｎ：０．３〜２．０％、Ｚｎ：残、より成る耐食性特
殊黄銅合金。In terms of weight ratio, Cu: 75-60%, Al: 0.1-3.
0%, Fe: 0.1-1.0%, Ni: 0.3-3.0
%, Si: 0.1-1.5% Pb: 0.2-3.0%,
A special corrosion-resistant brass alloy consisting of Sn: 0.3-2.0%, Zn: balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11172387A JPS63277732A (en) | 1987-05-08 | 1987-05-08 | Corrosion resistant special brass alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11172387A JPS63277732A (en) | 1987-05-08 | 1987-05-08 | Corrosion resistant special brass alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63277732A true JPS63277732A (en) | 1988-11-15 |
Family
ID=14568531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11172387A Pending JPS63277732A (en) | 1987-05-08 | 1987-05-08 | Corrosion resistant special brass alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63277732A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447267C (en) * | 2005-12-27 | 2008-12-31 | 北京有色金属研究总院 | Non-magnetic corrosion resisting copper alloy material |
| JP2012072419A (en) * | 2010-09-27 | 2012-04-12 | Lixil Corp | Copper-based alloy for forging and cutting, and water equipment |
| JP2013167011A (en) * | 2012-01-17 | 2013-08-29 | Lixil Corp | Copper-based alloy for casting and instrument for water supply |
| JP2013194277A (en) * | 2012-03-19 | 2013-09-30 | Lixil Corp | Copper-based alloy for cutting and device for water service using the alloy |
| CN104651660A (en) * | 2015-02-02 | 2015-05-27 | 九牧厨卫股份有限公司 | Easily processed silicon brass alloy and preparation method thereof |
| JP2016508186A (en) * | 2014-01-03 | 2016-03-17 | 嘉興艾迪西暖通科技有限公司 | Low lead brass without bismuth and silicon |
| CN110144492A (en) * | 2018-07-11 | 2019-08-20 | 鹤山麦瑟文卫浴有限公司 | A kind of environment-friendly type lead-free copper alloy applied to tap |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5785949A (en) * | 1980-11-14 | 1982-05-28 | Sanpo Shindo Kogyo Kk | Corrosion resistant copper alloy |
| JPS58185738A (en) * | 1982-04-20 | 1983-10-29 | Yamamoto Sangyo Kk | Brass |
-
1987
- 1987-05-08 JP JP11172387A patent/JPS63277732A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5785949A (en) * | 1980-11-14 | 1982-05-28 | Sanpo Shindo Kogyo Kk | Corrosion resistant copper alloy |
| JPS58185738A (en) * | 1982-04-20 | 1983-10-29 | Yamamoto Sangyo Kk | Brass |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447267C (en) * | 2005-12-27 | 2008-12-31 | 北京有色金属研究总院 | Non-magnetic corrosion resisting copper alloy material |
| JP2012072419A (en) * | 2010-09-27 | 2012-04-12 | Lixil Corp | Copper-based alloy for forging and cutting, and water equipment |
| JP2013167011A (en) * | 2012-01-17 | 2013-08-29 | Lixil Corp | Copper-based alloy for casting and instrument for water supply |
| JP2013194277A (en) * | 2012-03-19 | 2013-09-30 | Lixil Corp | Copper-based alloy for cutting and device for water service using the alloy |
| JP2016508186A (en) * | 2014-01-03 | 2016-03-17 | 嘉興艾迪西暖通科技有限公司 | Low lead brass without bismuth and silicon |
| CN104651660A (en) * | 2015-02-02 | 2015-05-27 | 九牧厨卫股份有限公司 | Easily processed silicon brass alloy and preparation method thereof |
| CN110144492A (en) * | 2018-07-11 | 2019-08-20 | 鹤山麦瑟文卫浴有限公司 | A kind of environment-friendly type lead-free copper alloy applied to tap |
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