JPH0790513A - Vane member made of fe-base sintered alloy impregnated with lead, for vane pump device excellent in wear resistance - Google Patents
Vane member made of fe-base sintered alloy impregnated with lead, for vane pump device excellent in wear resistanceInfo
- Publication number
- JPH0790513A JPH0790513A JP25119793A JP25119793A JPH0790513A JP H0790513 A JPH0790513 A JP H0790513A JP 25119793 A JP25119793 A JP 25119793A JP 25119793 A JP25119793 A JP 25119793A JP H0790513 A JPH0790513 A JP H0790513A
- Authority
- JP
- Japan
- Prior art keywords
- sintered alloy
- vane
- lead
- base sintered
- alloy
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、施設の給排水など各
種液体の移送に広く用いられているベーンポンプ装置の
構造部材であるベーン部材に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vane member which is a structural member of a vane pump device which is widely used for transferring various liquids such as water supply and drainage of facilities.
【０００２】[0002]
【従来の技術】従来、一般にベーンポンプ装置のベーン
部材（以下、単にベーン部材という）として、例えば特
開平１−１８８６４９号公報に記載されるＦｅ基焼結合
金はじめ、その他多くのＦｅ基焼結合金が用いられてい
る。2. Description of the Related Art Conventionally, as a vane member of a vane pump device (hereinafter, simply referred to as a vane member), for example, an Fe-based sintered alloy described in JP-A-1-188649 and many other Fe-based sintered alloys have been used. Is used.
【０００３】[0003]
【発明が解決しようとする課題】一方、近年のベーンポ
ンプ装置の高性能化および小型化に伴ない、これの構造
部材であるベーン部材には一段と薄肉化が要求され、か
つより一層苛酷な条件下での使用を余儀される傾向にあ
るが、かかる使用環境下では、従来の各種Ｆｅ基焼結合
金製ベーン部材は、摩耗進行が速く、比較的短時間で使
用寿命に至るのが現状である。On the other hand, with the high performance and miniaturization of the vane pump device in recent years, the vane member, which is a structural member of the vane pump device, is required to be further thinned, and under more severe conditions. However, in such an environment of use, the conventional vane members made of various Fe-based sintered alloys are rapidly worn and reach a service life in a relatively short time. .
【０００４】[0004]
【課題を解決するための手段】そこで、本発明者等は、
上述のような観点から、耐摩耗性のすぐれたベーン部材
を開発すべく研究を行なった結果、ベーン部材を、５〜
２０％の空孔率を有する炭化物分散析出型Ｆｅ基焼結合
金に、ＰｂまたはＰｂ合金を含浸してなる鉛含浸Ｆｅ基
焼結合金で構成すると、この結果の鉛含浸Ｆｅ基焼結合
金製ベーン部材は、苛酷な条件下での実用にもすぐれた
耐摩耗性を示し、著しく長期に亘ってすぐれた性能を発
揮するという研究結果を得たのである。Therefore, the present inventors have
From the above viewpoint, as a result of research to develop a vane member having excellent wear resistance, the vane member was
When a lead-impregnated Fe-based sintered alloy obtained by impregnating Pb or a Pb alloy with a carbide-dispersed precipitation-type Fe-based sintered alloy having a porosity of 20% is used, the result is a lead-impregnated Fe-based sintered alloy. The research results show that the vane member exhibits excellent wear resistance even under practical conditions under severe conditions, and exhibits excellent performance over a remarkably long period of time.
【０００５】この発明は、上記の研究結果にもとづいて
なされたものであって、ベーン部材を、５〜２０％の空
孔率を有する炭化物分散析出型Ｆｅ基焼結合金に、Ｐｂ
またはＰｂ合金を含浸してなる鉛含浸Ｆｅ基焼結合金で
構成した点に特徴を有するものである。The present invention has been made based on the above-mentioned research results. The vane member is made of a carbide-dispersed precipitation-type Fe-based sintered alloy having a porosity of 5 to 20% and Pb.
Alternatively, it is characterized in that it is made of a lead-impregnated Fe-based sintered alloy impregnated with a Pb alloy.
【０００６】なお、この発明のベーン部材を構成するＦ
ｅ基焼結合金の空孔率を５〜２０％と定めたのは、その
割合が５％未満では、鉛含浸が十分に行なわれず、この
結果十分な気密性および耐食性、さらになじみ性を確保
することができないばかりでなく、相手部材であるカム
リングなどへの相手攻撃性が大きく、一方その割合が２
０％を越えると耐摩耗性が急激に低下するようになると
いう理由からである。Incidentally, F constituting the vane member of the present invention
The porosity of the e-based sintered alloy is set to 5 to 20% because if the ratio is less than 5%, lead impregnation is not sufficiently performed, and as a result, sufficient airtightness, corrosion resistance, and compatibility are ensured. Not only can it not be done, but the opponent's aggression against the opponent member, such as the cam ring, is great, while the ratio is 2
This is because if it exceeds 0%, the wear resistance will be rapidly reduced.
【０００７】また、この発明のベーン部材を構成する炭
化物分散析出型Ｆｅ基焼結合金としては、重量％で（以
下、組成に関する％は重量％を示す）、分散相形成成分
として、Ｎｉ：１〜１０％含有のＭｏ−Ｎｉ合金、Ｃ
ｏ：１〜１０％含有のＭｏ−Ｃｏ合金、およびＮｉ：１
〜１０％とＣｏ：１〜１０％含有のＭｏ−Ｎｉ−Ｃｏ合
金のうちの１種または２種以上：２〜２０％、を含有
し、いずれも素地形成成分として、Ｃ：１〜３％、
Ｓｉ：０．３〜１．５％、Ｃｒ：２〜１６％、
Ｍｏ：１〜５％、Ｖ：０．４〜３％、を含有し、さ
らに必要に応じて、Ｎｉ：０．１〜２％、 Ｃｏ：
０．１〜５％、のうちの１種または２種、を含有し、残
りがＦｅと不可避不純物からなる組成をもつものが望ま
しい。Further, the carbide-dispersed precipitation-type Fe-based sintered alloy constituting the vane member of the present invention has a weight percentage (hereinafter,% relating to the composition indicates weight percentage), and Ni: 1 as a dispersed phase forming component. 10% to 10% Mo-Ni alloy, C
o: Mo-Co alloy containing 1 to 10%, and Ni: 1
10% and Co: 1-10% of Mo-Ni-Co alloy containing 1-10%: 2-20%, all containing C: 1-3% as a base forming component ,
Si: 0.3-1.5%, Cr: 2-16%,
Mo: 1 to 5%, V: 0.4 to 3%, and, if necessary, Ni: 0.1 to 2%, Co:
It is desirable to contain one or two of 0.1 to 5%, and the balance of Fe and inevitable impurities.
【０００８】[0008]
【実施例】つぎに、この発明のベーン部材を実施例によ
り具体的に説明する。原料粉末として、いずれも１００
mesh以下の粒度をもち、かつ表１，２に示される成分組
成をもった水アトマイズの素地形成用Ｆｅ基合金粉末Ａ
〜Ｑ並びにア〜オ、さらに１０〜５０μｍの範囲内の所
定の平均粒径をもち、かつ表３に示される成分組成をも
った分散相形成用Ｍｏ基合金粉末ａ〜ｑと金属Ｍｏ粉
末、そして粒度：−３２５mesh以下の黒鉛粉末を用意
し、これら原料粉末を、表４，５に示される配合組成に
配合し、ボールミルで７２時間湿式混合し、乾燥した
後、５〜７ton ／cm2 の範囲内の所定の圧力で圧粉体に
プレス成形し、この圧粉体を、真空中、１０７０〜１１
２０℃の範囲内の所定温度に１．５時間保持の条件で焼
結し、引続いて１０００〜１０５０℃の範囲内の所定温
度からガス強制冷却による焼入れと、５００〜６００℃
の範囲内の所定温度に２時間保持の焼戻しの熱処理を２
回繰り返し施して、素地に炭化物を十分に分散析出させ
ることにより実質的に配合組成と同一の組成、並びに
幅：３０mm×厚さ：１．６mmの寸法を有し、かつ相手部
材であるカムリングと当接する先端部をＲ：１mmとし、
さらに表４，５にそれぞれ示される空孔率をもったＦｅ
基焼結合金、並びに上記の特開平１−１８８６４９号公
報に記載されるＦｅ基焼結合金に相当する組成をもった
Ｆｅ基焼結合金で構成された従来Ｆｅ基焼結合金製ベー
ン部材（以下、従来焼結ベーン部材という）１〜５を製
造し、さらに前記従来焼結ベーン部材１〜５を除いた前
記Ｆｅ基焼結合金に、表４，５に示される組合せで、窒
素雰囲気中、浴表面に８Kg／cm2 の圧力を付加した状態
で、６００℃に加熱した純鉛またはＰｂ−５％Ｓｎの組
成を有するＰｂ合金の浴中に１時間浸漬保持の条件で鉛
含浸を施すことにより本発明鉛含浸Ｆｅ基焼結合金製ベ
ーン部材（以下、本発明鉛含浸焼結ベーン部材という）
１〜１７をそれぞれ製造した。EXAMPLES Next, the vane member of the present invention will be specifically described by way of examples. 100 as raw material powder
Fe-based alloy powder A for forming a base material for water atomization having a particle size of mesh or less and having the composition shown in Tables 1 and 2.
To Q and a to o, Mo-based alloy powders a to q for forming dispersed phases and metal Mo powders having a predetermined average particle diameter within the range of 10 to 50 μm and having the component composition shown in Table 3. Then, a graphite powder having a particle size of −325 mesh or less was prepared, and these raw material powders were blended in the blending composition shown in Tables 4 and 5, wet-mixed in a ball mill for 72 hours, dried, and then dried at 5 to 7 ton / cm 2 . The green compact is press-molded at a predetermined pressure within the range, and
Sintering at a predetermined temperature within a range of 20 ° C for 1.5 hours, followed by quenching from a predetermined temperature within a range of 1000 to 1050 ° C by forced gas cooling, and 500 to 600 ° C.
The heat treatment of tempering for 2 hours at a predetermined temperature within the range of 2
By repeatedly performing repeated times to sufficiently disperse and precipitate the carbide on the base material, the cam ring has a composition substantially the same as the composition and a dimension of width: 30 mm × thickness: 1.6 mm and is a mating member. The abutting tip is R: 1 mm,
Further, Fe having the porosities shown in Tables 4 and 5 respectively
A conventional Fe-based sintered alloy vane member composed of a base-sintered alloy and an Fe-based sintered alloy having a composition corresponding to the Fe-based sintered alloy described in JP-A-1-188649. (Hereinafter referred to as conventional sintered vane members) 1 to 5, and the Fe-based sintered alloys obtained by removing the conventional sintered vane members 1 to 5 are combined in a nitrogen atmosphere in the combinations shown in Tables 4 and 5. In a state where a pressure of 8 kg / cm 2 is applied to the surface of the bath, lead impregnation is performed in a bath of pure lead heated to 600 ° C. or a Pb alloy having a composition of Pb-5% Sn under the condition of immersion for 1 hour. Thus, the lead-impregnated Fe-based sintered alloy vane member of the present invention (hereinafter referred to as the lead-impregnated sintered vane member of the present invention)
1 to 17 were produced respectively.
【０００９】つぎに、この結果得られた本発明鉛含浸焼
結ベーン部材１〜１７および従来焼結ベーン部材１〜５
を、 ベーン数：１３枚、 相手部材であるカムリング；摺動部半径：２７．５mmの
ＳＮＣＭ２３（硬さ：Ｈｖ８２０）製、 定格吐出し圧：６．８６ＭＰａ、 の定容量型ベーンポンプ装置に組み込み、 吐出し圧：６．８６ＭＰａ、 作動油温度：４０℃、 回転数：１８００r.p.m.、 運転時間：３００時間、 の条件で実機試験を行ない、ベーン部材先端とカムリン
グの最大摩耗深さを測定した。これらの測定結果を表
４，５に示した。Next, the lead-impregnated sintered vane members 1 to 17 of the present invention and the conventional sintered vane members 1 to 5 obtained as a result are obtained.
, Vane number: 13, cam ring as mating member; sliding part radius: 27.5 mm, made of SNCM23 (hardness: Hv820), rated discharge pressure: 6.86 MPa, incorporated into a constant capacity vane pump device, Discharge pressure: 6.86 MPa, hydraulic oil temperature: 40 ° C., rotation speed: 1800 rpm, operating time: 300 hours, actual machine tests were performed to measure the maximum wear depth of the vane member tip and cam ring. The measurement results are shown in Tables 4 and 5.
【００１０】[0010]
【表１】 [Table 1]
【００１１】[0011]
【表２】 [Table 2]
【００１２】[0012]
【表３】 [Table 3]
【００１３】[0013]
【表４】 [Table 4]
【００１４】[0014]
【表５】 [Table 5]
【００１５】[0015]
【発明の効果】表４，５に示される結果から、本発明鉛
含浸焼結ベーン部材１〜１７は、厳しい運転条件下で従
来焼結ベーン部材１〜５に比して一段とすぐれた耐摩耗
性を示し、かつ相手攻撃性も著しく低いことが明らかで
ある。上述のように、この発明の鉛含浸Ｆｅ基焼結合金
製ベーン部材は、苛酷な条件下での実用に際しても、き
わめて低い相手攻撃性を保持した状態で、すぐれた耐摩
耗性を発揮し、ベーンポンプ装置の高性能化および小型
化に十分に対応できるものである。From the results shown in Tables 4 and 5, the lead-impregnated sintered vane members 1 to 17 of the present invention have much higher wear resistance than the conventional sintered vane members 1 to 5 under severe operating conditions. It is clear that the opponent's aggressiveness is extremely low and the opponent's aggression is extremely low. As described above, the lead-impregnated Fe-based sintered alloy vane member of the present invention exhibits excellent wear resistance while maintaining extremely low opponent attack even during practical use under severe conditions, The vane pump device can sufficiently cope with high performance and downsizing.
Claims (1)
析出型Ｆｅ基焼結合金に、ＰｂまたはＰｂ合金を含浸し
てなる鉛含浸Ｆｅ基焼結合金で構成したことを特徴とす
る耐摩耗性のすぐれたベーンポンプ装置の鉛含浸Ｆｅ基
焼結合金製ベーン部材。1. A lead-impregnated Fe-based sintered alloy obtained by impregnating Pb or a Pb alloy with a carbide-dispersed precipitation-type Fe-based sintered alloy having a porosity of 5 to 20%. Lead-impregnated Fe-based sintered alloy vane members for vane pumps with excellent wear resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25119793A JPH0790513A (en) | 1993-09-13 | 1993-09-13 | Vane member made of fe-base sintered alloy impregnated with lead, for vane pump device excellent in wear resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25119793A JPH0790513A (en) | 1993-09-13 | 1993-09-13 | Vane member made of fe-base sintered alloy impregnated with lead, for vane pump device excellent in wear resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0790513A true JPH0790513A (en) | 1995-04-04 |
Family
ID=17219132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25119793A Withdrawn JPH0790513A (en) | 1993-09-13 | 1993-09-13 | Vane member made of fe-base sintered alloy impregnated with lead, for vane pump device excellent in wear resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0790513A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8491695B2 (en) | 2005-11-16 | 2013-07-23 | Jtekt Corporation | Iron-base sintered part, manufacturing method of iron-base sintered part and actuator |
-
1993
- 1993-09-13 JP JP25119793A patent/JPH0790513A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8491695B2 (en) | 2005-11-16 | 2013-07-23 | Jtekt Corporation | Iron-base sintered part, manufacturing method of iron-base sintered part and actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20001128 |