JPH02261885A - Sliding part - Google Patents
Sliding partInfo
- Publication number
- JPH02261885A JPH02261885A JP8141989A JP8141989A JPH02261885A JP H02261885 A JPH02261885 A JP H02261885A JP 8141989 A JP8141989 A JP 8141989A JP 8141989 A JP8141989 A JP 8141989A JP H02261885 A JPH02261885 A JP H02261885A
- Authority
- JP
- Japan
- Prior art keywords
- less
- resistance
- galling
- sliding part
- balance
- 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
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 17
- 238000005260 corrosion Methods 0.000 abstract description 17
- 229910045601 alloy Inorganic materials 0.000 abstract description 14
- 239000000956 alloy Substances 0.000 abstract description 14
- 229910052748 manganese Inorganic materials 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- 239000000203 mixture Substances 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 239000011651 chromium Substances 0.000 description 7
- 239000010955 niobium Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 229910001347 Stellite Inorganic materials 0.000 description 2
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910001429 cobalt ion Inorganic materials 0.000 description 1
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical group [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は特定組成のＮｉ基合金からなる部材と特定組成
のＦｅ基合金からなる部材の組み合せからなる摺動部品
に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a sliding component that is a combination of a member made of a Ni-based alloy with a specific composition and a member made of a Fe-based alloy with a specific composition.
（従来の技術）
従来から化学、原子カプラントなどの各種プラント分野
で用いる弁の弁座等を始めとする摺動機構には、耐摩耗
性、耐かじり性、耐食性を付与するためにＣｏ基体のＧ
ｏ−Ｃｒ−Ｃ−Ｗ系合金（通称、ステライト）が溶接さ
れている。(Prior art) Sliding mechanisms such as valve seats used in various plant fields such as chemical and atomic couplants have traditionally been made of Co-based materials to provide wear resistance, galling resistance, and corrosion resistance. G
An o-Cr-C-W alloy (commonly known as stellite) is welded.
しかしながら、最近ではＣｏ資源の枯渇、化学プラント
にあってはその反応制御、原子カプラントにあってはそ
の安全性向上の観点から、上記入、テライトに代えてＮ
ｉあるいはＦｅを基体とした耐食・耐摩耗合金が開発さ
れている（「金属表面技術便覧」金属表面技術協会線、
昭和５１年、Ｐ１２１４〜１２０９）。However, recently, from the viewpoint of depletion of Co resources, reaction control in chemical plants, and safety improvement in nuclear couplants, N
Corrosion-resistant and wear-resistant alloys based on i or Fe have been developed ("Metal Surface Technology Handbook", Metal Surface Technology Association Line,
1975, P1214-1209).
しかし従来から知られているＮｉあるいはＦｅ基体の合
金は、Ｃｏ基体のステライトに比べてその耐食性、耐か
じり性の点で充分な特性を備えるものではなかった。However, the conventionally known Ni- or Fe-based alloys do not have sufficient corrosion resistance and galling resistance compared to Co-based stellite.
（発明が解決しようとする課題）
本発明は上記した問題点を解消するためになされたもの
で各種プラントにおいてコバルト粒子またはコバルトイ
オンの放出が実質的に皆無であり、かつ耐食性および耐
かじり性に優れた摺動部品を提供することを目的とする
ものである。(Problems to be Solved by the Invention) The present invention has been made to solve the above-mentioned problems, and is capable of substantially eliminating the release of cobalt particles or cobalt ions in various plants, and improving corrosion resistance and galling resistance. The purpose is to provide excellent sliding parts.
（課題を解決するための手段と作用）
本発明の摺動部品は一方の部材表面が重量比でＣｒ１８
〜３０％、 Ｎｂ ５〜１３％、 Ｍｏ １０〜２０％
、Ｓｉ３％以下、残部が実質的にＮｉより成り、かつ他
方の部材表面が重量化でＣｒ １０−３０％、 Ｍｎ
１０〜３０％。(Means and effects for solving the problem) The sliding part of the present invention has one member surface made of Cr18 in weight ratio.
~30%, Nb 5~13%, Mo 10~20%
, Si 3% or less, the remainder substantially Ni, and the other member surface is Cr 10-30% by weight, Mn
10-30%.
Ｃ００５〜３％以下、Ｓｉ ０．５〜５％、 Ｎ ０．
５％以下。C005~3% or less, Si 0.5~5%, N 0.
Less than 5%.
残部が実質的にＦｅまたはＣｒ１０〜３０％、 Ｍｎ
１０〜３０％、 Ｇ ０．５〜３％、 Ｓｉ ０．５〜
５％、 Ｎ ０．５％以下。The balance is substantially Fe or Cr10-30%, Mn
10~30%, G 0.5~3%, Si 0.5~
5%, N 0.5% or less.
Ｍｏ ５％以下、Ｎｉ８％以下、残部が実質的にＦａの
いずれかより成ることを特徴とする摺動部品である。This is a sliding component characterized by comprising Mo of 5% or less, Ni of 8% or less, and the remainder substantially of Fa.
本発明の摺動部品の一方の部材に使用されるＣｒ１８〜
３０％、 Ｎｂ ５〜１３％、 阿ｏ１０〜２０％
、Ｓｉ３ ％以下、残部が実質的にＮｉよりなる合
金の組成限定理由について説明する。Cr18~ used for one member of the sliding part of the present invention
30%, Nb 5-13%, Ao10-20%
, 3% or less of Si, and the remainder is substantially Ni.
まずＣｒ （クロム）は、耐食性を向上させるのに有効
であると同時に高温における耐酸化性ならびに硬さを高
めるために必要な成分で組成比が１８％未満では、効果
が不充分であり、また３０％を越えると粗大な初晶が過
度に析出し所要の特性が低下するからであり、望ましく
は２０〜２８％が良い。First of all, Cr (chromium) is a component that is effective in improving corrosion resistance and is also necessary to increase oxidation resistance and hardness at high temperatures.If the composition ratio is less than 18%, the effect is insufficient. This is because if it exceeds 30%, coarse primary crystals will precipitate excessively, degrading the required properties, and it is preferably 20 to 28%.
Ｎｂ にニオブ）はクロムおよびニッケルと結合して、
Ｃｒ、Ｎｂ等の金属間化合物をつくり硬さを高め、耐
摩耗性を向上させるのに必要な成分で組成比５％未満で
は効果が不充分でまた。１３％を越えると靭性の低下が
みられ機械的強度が損なわれるからであり、望ましくは
８〜１２％が良い。Nb to niobium) combines with chromium and nickel,
It is a necessary component to create intermetallic compounds such as Cr and Nb to increase hardness and improve wear resistance, and if the composition ratio is less than 5%, the effect is insufficient. This is because if it exceeds 13%, the toughness will decrease and the mechanical strength will be impaired, and the preferable range is 8 to 12%.
Ｍｏ （モリブデン）は、耐食性の向上ならびに固溶体
強化により硬さ、耐摩耗性及び耐かじり性の向上に寄与
するものであり、組成比１０％未満では効果が不充分で
あり、また２０％を越えると靭性の低下が見られるから
であり、望ましくは１１−１８％が良い。Mo (molybdenum) contributes to improving hardness, wear resistance, and galling resistance by improving corrosion resistance and solid solution strengthening, and the effect is insufficient when the composition ratio is less than 10%, and when it exceeds 20%. This is because a decrease in toughness is observed, and the preferable range is 11-18%.
Ｓｉ （シリコン）は耐摩耗性、耐かじり性を向上させ
るのに有効であると同時に鋳造性、溶接性。Si (silicon) is effective in improving wear resistance and galling resistance, as well as improves castability and weldability.
湯流れ性の向上に寄与する成分であるが３％を越えて含
有させてもより一層の改善効果は期待できず望ましくは
２％以下が良い。Although it is a component that contributes to improving the flowability of hot metal, even if it is contained in an amount exceeding 3%, no further improvement effect can be expected, so it is preferably 2% or less.
なお、本発明に係る前記Ｎｉ’基合金においては、ニオ
ブの一部をタンタルで置換してもよい。またモリブデン
の一部をタングステンに置換することもできる。さらに
溶解時に添加する脱酸、脱窒剤としてＭｎなどを含んで
いても差支えない。In addition, in the Ni'-based alloy according to the present invention, a part of niobium may be replaced with tantalum. Moreover, a part of molybdenum can also be replaced with tungsten. Furthermore, Mn or the like may be included as a deoxidizing and denitrifying agent added during melting.
次に本発明の摺動部品の他方の部材に使用されるＣｒ
１０〜３０％、 Ｍｎ １０〜３０％、Ｃ０，５〜３％
、 ５ｉＯ５５〜５％、Ｎ０．５％以下、残部がＦｅよ
り成る合金および上記合金にさらに５％以下のＭｏ、
８％以下のＮｉを含んだ合金の組成限定理由について理
由について説明する。Next, Cr used for the other member of the sliding component of the present invention
10-30%, Mn 10-30%, C0.5-3%
, 5iO55~5%, N0.5% or less, the balance is Fe, and the above alloy further contains 5% or less Mo,
The reason for limiting the composition of alloys containing 8% or less Ni will be explained.
まず、Ｃｒは耐食性および合金の素地を強化するために
必要な成分で、その組成比が１０％未満では効果が不充
分であり、また過剰の添加は靭性を劣化させることから
上限を３０％とする。なお、耐食性と強度を充分発揮さ
せるためには１３〜２８％とすることが望ましい。First of all, Cr is a necessary component to strengthen corrosion resistance and the base of the alloy. If the composition ratio is less than 10%, the effect is insufficient, and excessive addition deteriorates toughness, so the upper limit is set at 30%. do. In addition, in order to fully demonstrate corrosion resistance and strength, it is desirable to set it to 13-28%.
Ｍｎは耐かじり性、耐摩耗性の向上に必要な元素で少な
くとも１０％は必要である。しかし過剰の添加は加工性
を害することから上限を３０％とする。Mn is an element necessary for improving galling resistance and wear resistance, and must be present in an amount of at least 10%. However, since excessive addition impairs processability, the upper limit is set at 30%.
なお、耐摩耗性、加工硬化性を向上させる為には１２〜
２４％とすることが望ましい。In addition, in order to improve wear resistance and work hardening properties, 12~
It is desirable to set it to 24%.
Ｃは強度の向上に寄与するものであり、少なくとも０．
５％は必要である。しかし過剰の添加は靭性を著しく低
下させることから上限を３％とする必要があり、望まし
くは０．８〜２．２％が良い。C contributes to improving strength, and is at least 0.
5% is necessary. However, since excessive addition significantly reduces toughness, the upper limit needs to be 3%, preferably 0.8 to 2.2%.
Ｎは強度を向上させると同時に耐食性を向上させるが、
過剰の添加は靭性を害することから上限を０．５％ と
する。N improves strength and corrosion resistance at the same time, but
Since excessive addition impairs toughness, the upper limit is set at 0.5%.
ＳＬは耐摩耗性、耐かじり性を向上させるのに有効であ
ると同時に湯流れ性をよくするために必要な成分で組成
比が０．５％未満では効果が不充分であり、また５％を
越えて含有させてもより一層の改善効果は期待できない
。SL is effective in improving wear resistance and galling resistance, and at the same time is a necessary component to improve melt flow. If the composition ratio is less than 0.5%, the effect will be insufficient, and if the composition ratio is less than 0.5%, the effect will be insufficient. Further improvement effects cannot be expected even if the content exceeds the above.
またＭＯは耐食性を向上させるが、過剰の添加は靭性を
害することから上限を５％とするが実用上は４％以下と
することが好ましい。Further, although MO improves corrosion resistance, excessive addition impairs toughness, so the upper limit is set to 5%, but in practice it is preferably 4% or less.
またＮｉは靭性を向上させるが、８％を越えて含有させ
てもより一層の改善効果は期待できない。Further, although Ni improves toughness, even if it is contained in an amount exceeding 8%, no further improvement effect can be expected.
（実施例）
実施例１〜４
第１表に示す組成の素材を高周波誘導溶解炉を用いて溶
解鋳造し得られた鋳造品を切り出し、特性評価試験を行
った。試験は腐食試験及び耐かじり試験を行った。(Example) Examples 1 to 4 Materials having the compositions shown in Table 1 were melted and cast using a high frequency induction melting furnace, and the resulting cast products were cut out and subjected to characteristic evaluation tests. The tests included a corrosion test and a galling resistance test.
なお、腐食試験は室温の水中に１週間浸漬して表面の完
備で評価した。また耐かじり試験は室温水中、負荷応力
１ ｋｇ ／ ｍ”で摺動させ表面のかじり発生の有無
を調べた。腐食試験結果を第１表に併記した。また耐か
じり試験結果を第２表に示した。The corrosion test was conducted by immersing the sample in water at room temperature for one week and evaluating the surface integrity. In addition, the anti-galling test was conducted by sliding it in water at room temperature under a load stress of 1 kg/m'' to check for the occurrence of galling on the surface.The results of the corrosion test are also listed in Table 1.The results of the anti-galling test are also shown in Table 2. Indicated.
比較例１〜３
第１表の比較例１〜３に示す組成の合金を用意し上記実
施例と同様に腐食試験及び耐かじり試験を行なった。そ
の結果を第１表及び第２表に示した。Comparative Examples 1 to 3 Alloys having the compositions shown in Comparative Examples 1 to 3 in Table 1 were prepared and subjected to corrosion tests and anti-galling tests in the same manner as in the above examples. The results are shown in Tables 1 and 2.
（以下余白）
第２表
第１表及び第２表より明らかなように本発明の実施例１
〜４は耐食性及び耐かじり性が従来バルブ弁座などの耐
摩耗部品として使用されている比較例３のコバルト基合
金と同様に優れていることが確認された。(The following is a blank space) Table 2 As is clear from Tables 1 and 2, Example 1 of the present invention
It was confirmed that the corrosion resistance and galling resistance of Samples 4 to 4 were as excellent as those of the cobalt-based alloy of Comparative Example 3, which has been conventionally used as wear-resistant parts such as valve seats.
以上の結果から明らかなように本発明に係る摺動部品は
摺動部表面に使用する合金の耐食性と耐かじり性が優れ
、またＣＯを含有しないため特に原子カプラントに使用
する弁等に好適である。As is clear from the above results, the sliding part according to the present invention has excellent corrosion resistance and galling resistance of the alloy used on the surface of the sliding part, and since it does not contain CO, it is particularly suitable for valves used in atomic couplants. be.
代理人 弁理士 則 近 憲 佑 同 松山光之Agent: Patent Attorney Noriyuki Chika Same as Mitsuyuki Matsuyama
Claims (1)
部材表面が重量比でＣｒ１８〜３０％、Ｎｂ５〜１３％
、Ｍｏ１０〜２０％、Ｓｉ３％以下、残部が実質的にＮ
ｉより成り、かつ他方の部材表面が重量比でＣｒ１０〜
３０％、Ｍｎ１０〜３０％、Ｃ０．５〜３％、Ｓｉ０．
５〜５％、Ｎ０．５％以下残部が実質的にＦｅより成る
ことを特徴とする摺動部品。 ２）互いに接触して摺動する摺動部品において、一方の
部材表面が重量比でＣｒ１８〜３０％、Ｎｂ５〜１３％
、Ｍｏ１０〜２０％、Ｓｉ３％以下、残部が実質的にＮ
ｉより成り、かつ他方の部材表面が重量比でＣｒ１０〜
３０％、Ｍｎ１０〜３０％、Ｃ０．５〜３％、Ｓｉ０．
５〜５％、Ｎ０．５％以下、Ｍｏ５％以下、Ｎｉ８％以
下残部が実質的にＦｅより成ることを特徴とする摺動部
品。[Claims] 1) In sliding parts that slide in contact with each other, the surface of one member is made of 18 to 30% Cr and 5 to 13% Nb by weight.
, Mo 10-20%, Si 3% or less, the balance being substantially N.
i, and the other member surface has a weight ratio of Cr10~
30%, Mn10-30%, C0.5-3%, Si0.
5 to 5%, N0.5% or less, and the balance substantially consists of Fe. 2) In sliding parts that slide in contact with each other, one member surface has a weight ratio of 18 to 30% Cr and 5 to 13% Nb.
, Mo 10-20%, Si 3% or less, the balance being substantially N.
i, and the other member surface has a weight ratio of Cr10~
30%, Mn10-30%, C0.5-3%, Si0.
5 to 5%, N 0.5% or less, Mo 5% or less, Ni 8% or less, and the balance substantially consists of Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8141989A JPH02261885A (en) | 1989-04-03 | 1989-04-03 | Sliding part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8141989A JPH02261885A (en) | 1989-04-03 | 1989-04-03 | Sliding part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02261885A true JPH02261885A (en) | 1990-10-24 |
Family
ID=13745834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8141989A Pending JPH02261885A (en) | 1989-04-03 | 1989-04-03 | Sliding part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02261885A (en) |
-
1989
- 1989-04-03 JP JP8141989A patent/JPH02261885A/en active Pending
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