JPS63210256A - Austenitic cast iron having high vibration-damping property - Google Patents
Austenitic cast iron having high vibration-damping propertyInfo
- Publication number
- JPS63210256A JPS63210256A JP4247987A JP4247987A JPS63210256A JP S63210256 A JPS63210256 A JP S63210256A JP 4247987 A JP4247987 A JP 4247987A JP 4247987 A JP4247987 A JP 4247987A JP S63210256 A JPS63210256 A JP S63210256A
- Authority
- JP
- Japan
- Prior art keywords
- cast iron
- damping property
- austenitic cast
- high vibration
- vibration
- 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
- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 30
- 238000013016 damping Methods 0.000 title claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract 4
- 229910002804 graphite Inorganic materials 0.000 abstract description 6
- 239000010439 graphite Substances 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 abstract description 2
- 230000005389 magnetism Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は振動減衰能が大きい鋳鉄に関するものであり、
詳しくは振動減衰能が大きい非磁性オーステナイト鋳鉄
に関するものであり、各種機器部材として使用される。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to cast iron with high vibration damping ability,
Specifically, it relates to non-magnetic austenitic cast iron that has a high vibration damping ability and is used as various equipment components.
（従来の技術）
従来のオーステナイト鋳鉄として片状黒鉛ニレジスト鋳
鉄があり、このものはＣ：３．０％以下、Ｓｉ： １．
Ｏ〜９．５％、Ｍｎ： １．Ｏ〜１．５％、Ｎｉ：
１３． ５〜１７． ５ ％、Ｃｕ：５．５〜７゜５
％、Ｃｒ：１．７５〜２．５％からなる非磁性片状黒鉛
オーステナイト鋳鉄である（例えば、日本鋳物協会編ｒ
改訂４版 鋳物便覧」（昭６１．１．２０）丸首、Ｐ２
Ｏ３）。(Prior Art) As a conventional austenitic cast iron, there is flake graphite Niresist cast iron, which contains C: 3.0% or less and Si: 1.0%.
O~9.5%, Mn: 1. O~1.5%, Ni:
13. 5-17. 5%, Cu: 5.5-7゜5
%, Cr: 1.75 to 2.5%.
Revised 4th Edition Casting Handbook” (January 20, 1986) Round neck, P2
O3).
（発明が解決しようとする問題点）
鋳鉄は一般に、他の鉄系材料に比較して振動減衰能が大
きいため、繰り返し衝撃や摩擦に起因する振動、回転運
動や往復運動から発生する騒音を防止するために各種機
器部材として使用されているが、従来のオーステナイト
鋳鉄は振動減衰能Ｑ−が１０〜８０Ｘ１０−’程度と小
さいなめ、上記振動や騒音を下げることが困難であると
いう問題点がある。そこで、本発明はかかる問題点を解
決するためになされたもので、従来鋳鉄の非磁性を損な
うことなく、優れた振動減衰能を有するオーステナイト
鋳鉄を提供するものである。(Problem to be solved by the invention) Cast iron generally has a higher vibration damping ability than other iron-based materials, so it prevents vibrations caused by repeated impacts and friction, and noise generated from rotational motion and reciprocating motion. However, conventional austenitic cast iron has a small vibration damping capacity Q- of about 10 to 80 x 10-', making it difficult to reduce the vibrations and noise mentioned above. . The present invention has been made to solve these problems and provides an austenitic cast iron having excellent vibration damping ability without impairing the non-magnetism of conventional cast iron.
（問題点を解決するための手段）
本発明は重量％でＣ：３．０〜４．５％、Ｓｉ：１．５
〜３．０％、Ｍｎ： ０．２〜１．５％、Ｎ】。(Means for solving the problems) The present invention has C: 3.0 to 4.5% and Si: 1.5% by weight.
~3.0%, Mn: 0.2-1.5%, N].
−２＝
８ 、５〜２０．５ ％、Ｃｕ： ５． ５〜７
． ５ ％、Ｃｒ：１．５％以下を含み、残部がＦｅお
よび不可避的不純物からなり、片状黒鉛組織を有する非
磁性オーステナイト鋳鉄である。-2=8, 5-20.5%, Cu: 5. 5-7
．． 5%, Cr: 1.5% or less, the remainder consisting of Fe and inevitable impurities, and is non-magnetic austenitic cast iron having a flaky graphite structure.
次に本発明において各成分組成を限定した理由について
説明する。Next, the reason for limiting the composition of each component in the present invention will be explained.
（１）Ｃ
鋳鉄においてはＳｔとともに鋳鉄の振動減衰能を向上さ
せる黒鉛の析出を促進する元素であり、溶解性、鋳造性
を考慮すると３．０％以上必要である。しかし、４．５
％以上添加すると溶解温度が異常に高くなり特殊な溶解
技術を必要とするため３．０〜４．５％に限定した。(1) C In cast iron, C is an element that, together with St, promotes the precipitation of graphite that improves the vibration damping ability of cast iron, and in consideration of solubility and castability, it is necessary to have a content of 3.0% or more. However, 4.5
If more than 5% is added, the melting temperature becomes abnormally high and special melting techniques are required, so it was limited to 3.0 to 4.5%.
（２）Ｓｉ
上記したＣとともに強力な黒鉛化促進元素であり、振動
減衰能を向上させる片状黒鉛を大きく成長させるなめに
は１．５％以上必要であり、またＣが３．０％以上にな
ると基地中のＳｔ濃度が高まり、材質が脆弱になるため
１．５＝３．０％に限定しな。(2)Si Along with the above-mentioned C, it is a strong graphitization promoting element, and 1.5% or more is required to grow flaky graphite that improves vibration damping ability, and C is 3.0% or more. If it becomes, the St concentration in the base will increase and the material will become brittle, so it should not be limited to 1.5 = 3.0%.
（３）Ｍｎ 一般の鋳鉄に含まれている量０゜２〜１．５％とする。(3) Mn The amount contained in general cast iron is 0°2 to 1.5%.
（４）Ｎｉ
Ｎｉはオーステナイト化促進元素であり、鋳鉄の基地を
完全にオーステナイトにするなめには、８．０％以上必
要であり、２０．５％を超えるとオーステナイトに磁性
を生じさせるため８．５〜２０．５％、に限定した。(4) Ni Ni is an element that promotes austenitization, and in order to completely transform the base of cast iron into austenite, 8.0% or more is required. .5 to 20.5%.
（５）Ｃｕ
Ｃｕは高価なＮｉの代用として５．５〜７．５％の範囲
で置換可能なため、５．５〜７，５％に限定しな。(5) Cu Cu can be substituted in a range of 5.5 to 7.5% as a substitute for expensive Ni, so it is not limited to 5.5 to 7.5%.
（６）Ｃｒ
Ｃｒはオーステナイト化促進元素ではあるが、その含有
量が１．５％を超えると多量の炭化物を析出し、オース
テナイト鋳鉄に磁性を生じさせるなめその上限を１．５
％とした。(6) Cr Although Cr is an element that promotes austenitization, when its content exceeds 1.5%, a large amount of carbide is precipitated, causing magnetism in austenitic cast iron, so the upper limit is set at 1.5%.
%.
（実施例） 以下、本発明の実施例について述べる。(Example) Examples of the present invention will be described below.
Ｃ：３．０〜４ 、５％、Ｓｊ：１．５〜３ 、０％、
Ｍｎ： ０． ２〜１． ５ ％、Ｎｉ： ８．
５〜２０． ５％、Ｃｕ： ５．５〜７．５％、Ｃｒ：
１．５％以下を含み、残部がＦｅおよび不可避的不純物
からなるように溶湯溶製、溶湯処理を施した後、ＣＯ３
鋳型に鋳込み、１インチＹブロックを採取し、成分組成
、振動減衰能および磁性を調査し、その結果を比較鋳鉄
例と共に下記表に示す。比較鋳鉄は一般の片状黒□鉛オ
ーステナイト鋳鉄である。C: 3.0-4, 5%, Sj: 1.5-3, 0%,
Mn: 0. 2-1. 5%, Ni: 8.
5-20. 5%, Cu: 5.5-7.5%, Cr:
After melting and processing the molten metal so that it contains 1.5% or less and the remainder consists of Fe and unavoidable impurities, CO3
It was cast into a mold, a 1-inch Y block was taken, and its component composition, vibration damping ability, and magnetism were investigated, and the results are shown in the table below along with comparative cast iron examples. The comparative cast iron is general flaky graphite austenitic cast iron.
なお添付図面は本発明鋳鉄（供試材、１）の顕微鏡写真
（３％ナイタール腐食、倍率１００倍）であり、オース
テナイト基地組織に片状黒鉛が晶出している。The attached drawing is a micrograph (3% nital corrosion, 100x magnification) of the cast iron of the present invention (sample material 1), in which flaky graphite is crystallized in the austenite matrix structure.
本発明は以上の通りであって下記表からも明らかなよう
に、本発明鋳鉄は比較鋳鉄に比べきわめて優れた振動減
衰能を有し、しかも非磁性である。The present invention is as described above, and as is clear from the table below, the cast iron of the present invention has an extremely superior vibration damping ability compared to comparative cast iron, and is also non-magnetic.
（発明の効果）
本発明鋳鉄は優れた振動減衰能と非磁性とを有するので
、広く各種器基部材として適用でき、特に繰り返し衝撃
機構や回転体を有する機器部材として用いるときはその
優れた振動減衰能によって振動を減少でき、また疲労破
壊の防止にも役立つとともに、騒音の発生抑制あるいは
騒音の吸収に極めて優れた効果を発揮するもので機器材
料として優れた材質である。(Effects of the Invention) Since the cast iron of the present invention has excellent vibration damping ability and non-magnetic properties, it can be widely applied as a variety of equipment base components, and especially when used as equipment components with repetitive impact mechanisms or rotating bodies, the cast iron has excellent vibration damping ability and non-magnetism. It is an excellent material for equipment because its damping ability can reduce vibrations, and it also helps prevent fatigue failure. It also exhibits extremely excellent effects in suppressing noise generation and absorbing noise.
図面は本発明鋳鉄の金属組織を示すＲ微鏡写真である。 The drawing is an R microphotograph showing the metal structure of the cast iron of the present invention.
Claims (1)
０％、Ｍｎ：０．２〜１．５％、Ｎｉ：８．５〜２０．
５％、Ｃｕ：５．５〜７．５％、Ｃｒ：１．５％以下を
含み、残部がＦｅおよび不可避的不純物からなり、片状
黒鉛組織を有することを特徴とする振動減衰能が大きい
オーステナイト鋳鉄。In weight%, C: 3.0-4.5%, Si: 1.5-3.
0%, Mn: 0.2-1.5%, Ni: 8.5-20.
5%, Cu: 5.5 to 7.5%, Cr: 1.5% or less, with the remainder consisting of Fe and unavoidable impurities, and has a flaky graphite structure.It has a high vibration damping ability. Austenitic cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4247987A JPS63210256A (en) | 1987-02-27 | 1987-02-27 | Austenitic cast iron having high vibration-damping property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4247987A JPS63210256A (en) | 1987-02-27 | 1987-02-27 | Austenitic cast iron having high vibration-damping property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63210256A true JPS63210256A (en) | 1988-08-31 |
Family
ID=12637199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4247987A Pending JPS63210256A (en) | 1987-02-27 | 1987-02-27 | Austenitic cast iron having high vibration-damping property |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63210256A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194661A (en) * | 2012-01-05 | 2013-07-10 | Lg电子株式会社 | Nonmagnetic cast iron and reciprocating compressor applied the same |
| CN103397254A (en) * | 2013-08-08 | 2013-11-20 | 常熟市东方特种金属材料厂 | Compound-type vibration and noise reduction function alloy |
| JP5384352B2 (en) * | 2007-08-31 | 2014-01-08 | 株式会社豊田自動織機 | Austenitic cast iron and its manufacturing method, austenitic cast iron casting and exhaust system parts |
| CN109913745A (en) * | 2019-02-20 | 2019-06-21 | 河北恒工机械装备科技有限公司 | Nickel alloy D type graphite austenite inoxidizability cast iron profile material and its manufacturing method |
-
1987
- 1987-02-27 JP JP4247987A patent/JPS63210256A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5384352B2 (en) * | 2007-08-31 | 2014-01-08 | 株式会社豊田自動織機 | Austenitic cast iron and its manufacturing method, austenitic cast iron casting and exhaust system parts |
| CN103194661A (en) * | 2012-01-05 | 2013-07-10 | Lg电子株式会社 | Nonmagnetic cast iron and reciprocating compressor applied the same |
| CN103194661B (en) * | 2012-01-05 | 2015-04-15 | Lg电子株式会社 | Nonmagnetic cast iron and reciprocating compressor applied the same |
| CN103397254A (en) * | 2013-08-08 | 2013-11-20 | 常熟市东方特种金属材料厂 | Compound-type vibration and noise reduction function alloy |
| CN109913745A (en) * | 2019-02-20 | 2019-06-21 | 河北恒工机械装备科技有限公司 | Nickel alloy D type graphite austenite inoxidizability cast iron profile material and its manufacturing method |
| CN109913745B (en) * | 2019-02-20 | 2021-04-30 | 河北恒工精密装备股份有限公司 | Nickel alloyed D-type graphite austenite oxidation resistant cast iron section and manufacturing method thereof |
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