JPH0790323A - Sliding member made of lead-impregnated fe-based sintered alloy for compressor excellent in wear resistance - Google Patents
Sliding member made of lead-impregnated fe-based sintered alloy for compressor excellent in wear resistanceInfo
- Publication number
- JPH0790323A JPH0790323A JP5251195A JP25119593A JPH0790323A JP H0790323 A JPH0790323 A JP H0790323A JP 5251195 A JP5251195 A JP 5251195A JP 25119593 A JP25119593 A JP 25119593A JP H0790323 A JPH0790323 A JP H0790323A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- based sintered
- lead
- impregnated
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、苛酷な条件下での使
用でもすぐれた耐摩耗性を発揮し、かつ相手攻撃性も著
しく低いコンプレッサ用鉛含浸Ｆｅ基焼結合金製摺動部
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 lead-impregnated Fe-based sintered alloy sliding member for a compressor, which exhibits excellent wear resistance even under severe conditions and has extremely low opponent attack. Is.
【０００２】[0002]
【従来の技術】従来、例えば冷蔵庫やエアコンなどに組
込まれて使用されるロータリーコンプレッサの構造部材
であるベーン部材やローラ部材、さらにスクロールコン
プレッサのスクロール部材などのコンプレッサ用摺動部
材の製造に、特開平１−１８８６４９号公報に記載され
るＦｅ基焼結合金や、その他多くのＦｅ基焼結合金が用
いられていることは良く知られるところである。2. Description of the Related Art Conventionally, for manufacturing a compressor sliding member such as a vane member or a roller member which is a structural member of a rotary compressor used in a refrigerator or an air conditioner, and a scroll member of a scroll compressor. It is well known that the Fe-based sintered alloy described in Kaihei 1-188649 and many other Fe-based sintered alloys are used.
【０００３】[0003]
【発明が解決しようとする課題】一方、近年のロータリ
ーコンプレッサやスクロールコンプレッサなどの各種コ
ンプレッサの高性能化および小型化はめざましく、これ
に伴ない、これらの構造部材である摺動部材にも薄肉化
および小型化が要求され、かつ一段と苛酷な条件下での
使用を予儀なくされ、さらに最近ではオゾン層破壊の原
因となっているフロンＲ１２に代ってフロンＲ１３４ａ
を冷媒として使用する傾向になりつつあるが、かかる使
用環境下では、従来の各種Ｆｅ基焼結合金製摺動部材
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, in recent years, various compressors such as rotary compressors and scroll compressors have been remarkably improved in performance and downsized, and along with this, the sliding members, which are these structural members, have been made thinner. Freon R134a replaces Freon R12, which is required to be downsized and has been forbidden to use under more severe conditions, and has recently been a cause of ozone layer depletion.
However, under such a use environment, the conventional sliding members made of various Fe-based sintered alloys have a rapid wear progress and reach a service life in a relatively short time under the present circumstances. is there.
【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、より一段と耐摩耗性のすぐれた
コンプレッサ用摺動部材を開発すべく研究を行なった結
果、摺動部材を、分散相形成成分として、望ましくはＣ
ｒ，Ｎｉ，およびＣｏの含有量がそれぞれ０．１〜１０
％であるＭｏ−Ｃｒ合金、Ｍｏ−Ｃｒ−Ｎｉ合金、Ｍｏ
−Ｃｒ−Ｃｏ合金、およびＭｏ−Ｃｒ−Ｎｉ−Ｃｏ合金
（以下、これらを総称してＭｏ−Ｃｒ−（Ｎｉ，Ｃｏ）
合金という）、並びに同じく望ましくはＦｅ，Ｎｉ，Ｃ
ｏ，およびＣｒの含有量がそれぞれ０．１〜１０％であ
るＭｏ−Ｆｅ合金、Ｍｏ−Ｆｅ−Ｎｉ合金、Ｍｏ−Ｆｅ
−Ｃｏ合金、Ｍｏ−Ｆｅ−Ｎｉ−Ｃｏ合金、Ｍｏ−Ｆｅ
−Ｃｒ合金、Ｍｏ−Ｆｅ−Ｎｉ−Ｃｒ合金、Ｍｏ−Ｆｅ
−Ｃｏ−Ｃｒ合金、およびＭｏ−Ｆｅ−Ｎｉ−Ｃｏ−Ｃ
ｒ合金（以下、これらを総称してＭｏ−Ｆｅ−（Ｎｉ，
Ｃｏ，Ｃｒ）合金という）のうちの１種または２種以
上：２〜２０％を含有し、以下いずれも素地形成成分と
して、Ｃ：１〜３％、 Ｓｉ：０．３〜１．
５％、Ｃｒ：８．５〜１６％、 Ｍｏ：１〜５％、
Ｖ：０．４〜３％、 Ｍｎ：０．１〜２％、を含
有し、さらに必要に応じて、Ｎｉ：０．１〜２％、
Ｃｏ：０．１〜８％、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、（以上
重量％、以下組成に関する％は重量％を示す）、並びに
５〜２０％の空孔率を有し、かつ素地が、微細な炭化物
が分散析出したマルテンサイト組織からなる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
合金製摺動部材は、苛酷な条件下での実用に際してすぐ
れた耐摩耗性を示し、相手攻撃性も低く、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-mentioned viewpoint, as a result of research to develop a sliding member for a compressor which is further excellent in wear resistance, as a result, it was found that the sliding member is preferably used as a dispersed phase forming component, preferably C
The contents of r, Ni, and Co are each 0.1 to 10
% Mo-Cr alloy, Mo-Cr-Ni alloy, Mo
-Cr-Co alloy and Mo-Cr-Ni-Co alloy (hereinafter, these are collectively referred to as Mo-Cr- (Ni, Co)
Alloys), and also preferably Fe, Ni, C
Mo-Fe alloy, Mo-Fe-Ni alloy, and Mo-Fe in which the contents of o and Cr are 0.1 to 10%, respectively.
-Co alloy, Mo-Fe-Ni-Co alloy, Mo-Fe
-Cr alloy, Mo-Fe-Ni-Cr alloy, Mo-Fe
-Co-Cr alloy, and Mo-Fe-Ni-Co-C
r alloy (hereinafter, these are collectively referred to as Mo-Fe- (Ni,
Co, Cr) alloy)) or 2 or more: 2 to 20%, and all of the following, C: 1 to 3%, Si: 0.3 to 1.
5%, Cr: 8.5-16%, Mo: 1-5%,
V: 0.4-3%, Mn: 0.1-2%, and, if necessary, Ni: 0.1-2%,
Co: 0.1 to 8%, one or two of them, and the balance consisting of Fe and unavoidable impurities (the above are% by weight, the% relating to the following composition indicates% by weight), and Lead-impregnated Fe obtained by impregnating Pb or Pb alloy into a Fe-based sintered alloy having a porosity of ˜20% and a matrix having a martensite structure in which fine carbides are dispersed and precipitated.
When composed of a base sintered alloy, the resulting lead-impregnated Fe-based sintered alloy sliding member exhibits excellent wear resistance during practical use under harsh conditions, low opponent attacking property, and is remarkably long-term. The result of the research is that it has excellent performance.
【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、分散相形成成分として、Ｍｏ−
Ｃｒ−（Ｎｉ，Ｃｏ）合金およびＭｏ−Ｆｅ−（Ｎｉ，
Ｃｏ，Ｃｒ）合金のうちの１種または２種以上：２〜２
０％、を含有し、以下いずれも素地形成成分として、
Ｃ：１〜３％、 Ｓｉ：０．３〜１．５％、
Ｃｒ：８．５〜１６％、 Ｍｏ：１〜５％、Ｖ：０．
４〜３％、 Ｍｎ：０．１〜２％、を含有し、さ
らに必要に応じて、Ｎｉ：０．１〜２％、 Ｃｏ：
０．１〜８％、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、並びに５〜２０
％の空孔率を有し、かつ素地が、微細な炭化物が分散析
出したマルテンサイト組織からなる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
金で構成したコンプレッサ用摺動部材に特徴を有するも
のである。The present invention was made on the basis of the above-mentioned research results.
Cr- (Ni, Co) alloys and Mo-Fe- (Ni,
One or more of Co, Cr) alloys: 2 to 2
0%, all of the following, as a base forming component,
C: 1-3%, Si: 0.3-1.5%,
Cr: 8.5-16%, Mo: 1-5%, V: 0.
4 to 3%, Mn: 0.1 to 2%, and, if necessary, Ni: 0.1 to 2%, Co:
0.1 to 8%, one or two of them, and the balance consisting of Fe and inevitable impurities, and 5 to 20%
% Fe-based sintered alloy having a porosity of 10% and a matrix having a martensite structure in which fine carbides are dispersed and precipitated,
The sliding member for a compressor is characterized by being made of a lead-impregnated Fe-based sintered alloy impregnated with Pb or a Pb alloy.
【０００６】つぎに、この発明のコンプレッサ用摺動部
材を構成するＦｅ基焼結合金の成分組成および空孔率を
上記の通りに限定した理由を説明する。 （ａ） 分散相形成成分 これらの成分は、望ましくはＣｒ，Ｆｅ，ＮｉおよびＣ
ｏの含有量がそれぞれ０．１〜１０％のＭｏ−Ｃｒ−
（Ｎｉ，Ｃｏ）合金、Ｍｏ−Ｆｅ−（Ｎｉ，Ｃｏ，Ｃ
ｒ）合金からなり、焼結時の特にＭｏ以外の合金成分の
素地への拡散によって素地と強固に接合し、かつ素地に
分散して耐焼付性を向上させ、苛酷な条件下での実用に
際してもスムーズな運転を可能として、摩耗進行を抑制
する作用をもつが、その含有量が２％未満では前記作用
に所望の効果が得られず、一方その含有量が２０％を越
えると強度が急激に低下するようになることから、その
含有量を２〜２０％と定めた。Next, the reasons for limiting the component composition and porosity of the Fe-based sintered alloy constituting the sliding member for a compressor of the present invention as described above will be explained. (A) Dispersed phase forming component These components are preferably Cr, Fe, Ni and C.
Mo-Cr-containing 0.1 to 10% of each o
(Ni, Co) alloy, Mo-Fe- (Ni, Co, C
r) made of an alloy, which is firmly bonded to the base material by diffusion of alloy components other than Mo into the base material during sintering, and is dispersed in the base material to improve seizure resistance, and is suitable for practical use under severe conditions. Also has the effect of suppressing the progress of wear by enabling smooth operation, but if the content is less than 2%, the desired effect cannot be obtained, while if the content exceeds 20%, the strength becomes sharp. Therefore, the content is determined to be 2 to 20%.
【０００７】（ｂ） Ｃ Ｃ成分には、素地に固溶して、これを強化するほか、焼
入れおよび焼戻しの熱処理によって素地中に微細に析出
する炭化物を形成して素地の硬さを高め、もって耐摩耗
性向上に寄与する作用があるが、その含有量が１％未満
では前記作用に所望の効果が得られず、一方その含有量
が３％を越えると靭性が急激に低下するようになること
から、その含有量を１〜３％と定めた。(B) The C component is a solid solution in the base material to strengthen it, and in addition to forming carbides which are finely precipitated in the base material by heat treatment of quenching and tempering, thereby increasing the hardness of the base material. Therefore, if the content is less than 1%, the desired effect cannot be obtained, and if the content exceeds 3%, the toughness is suddenly reduced. Therefore, the content is determined to be 1 to 3%.
【０００８】（ｃ） Ｓｉ Ｓｉ成分には、素地に固溶して、これの硬さを向上させ
るほか、脱酸作用があるが、その含有量が０．３％未満
では前記作用に所望の効果が得られず、一方その含有量
が１．５％を越えると靭性が低下するようになることか
ら、その含有量を０．３〜１．５％と定めた。(C) Si The Si component is solid-dissolved in the matrix to improve its hardness and has a deoxidizing action. However, if its content is less than 0.3%, it is desirable for the above action. The effect is not obtained, and on the other hand, if the content exceeds 1.5%, the toughness decreases, so the content was set to 0.3 to 1.5%.
【０００９】（ｄ） Ｃｒ Ｃｒ成分には、素地に固溶して耐食性を向上させるほ
か、平均粒径で１０μｍ以下の微細な炭化物を形成して
素地の硬さを一段と向上させ、耐摩耗性向上に寄与する
作用があるが、その含有量が８．５％未満では前記作用
に所望の効果が得られず、一方その含有量が１６％を越
えると相手攻撃性が急激に増大するようになることか
ら、その含有量を８．５〜１６％と定めた。(D) Cr The Cr component is solid-dissolved in the base material to improve the corrosion resistance, and also forms a fine carbide having an average particle size of 10 μm or less to further improve the hardness of the base material and to improve the wear resistance. Although it contributes to the improvement, if the content is less than 8.5%, the desired effect cannot be obtained, while if the content exceeds 16%, the aggression against the opponent is sharply increased. Therefore, the content is determined to be 8.5 to 16%.
【００１０】（ｅ） Ｍｏ Ｍｏ成分にも、Ｃｒと同様に素地中に微細に分散析出す
る炭化物を形成して素地の硬さを向上させるほか、分散
相形成成分が含有するＮｉおよび／またはＣｏの焼結時
の素地への拡散を促進して、これの素地に対する接合強
度を向上させる作用があるが、その含有量が１％未満で
は前記作用に所望の効果が得られず、一方その含有量が
５％を越えると靭性が低下するようになることから、そ
の含有量を１〜５％と定めた。(E) Mo The Mo component also forms carbides which are finely dispersed and precipitated in the matrix like Cr to improve the hardness of the matrix, and Ni and / or Co contained in the dispersed phase forming component. Has the effect of promoting diffusion into the matrix at the time of sintering and improving the bonding strength to the matrix, but if its content is less than 1%, the desired effect cannot be obtained for the above-mentioned effect, while If the amount exceeds 5%, the toughness will decrease, so the content was defined as 1 to 5%.
【００１１】（ｆ） Ｖ Ｖ成分にも、ＣｒおよびＭｏと同様に平均粒径で１０μ
ｍ以下の微細な析出炭化物を形成して硬さを向上させる
ほか、結晶粒を微細化して強度を向上させる作用がある
が、その含有量が０．４％未満では前記作用に所望の効
果が得られず、一方その含有量が３％を越えると相手攻
撃性が増すようになることから、その含有量を０．４〜
３％と定めた。(F) The V V component also has an average particle size of 10 μm, similar to Cr and Mo.
In addition to improving the hardness by forming fine precipitated carbides of m or less, it also has the effect of refining the crystal grains to improve the strength. On the other hand, if the content exceeds 3%, the aggression against the other party will increase, so the content should be 0.4-
It was set at 3%.
【００１２】（ｇ） Ｍｎ Ｍｎ成分には、素地に固溶して、これの靭性を向上させ
る作用があるが、その含有量が０．１％未満では所望の
靭性向上効果が得られず、一方その含有量が２％を越え
ると炭化物の素地への析出が抑制されるようになること
から、その含有量を０．１〜２％と定めた。(G) Mn The Mn component has a function of forming a solid solution in the matrix to improve the toughness thereof, but if the content is less than 0.1%, the desired toughness improving effect cannot be obtained. On the other hand, when the content exceeds 2%, the precipitation of carbide on the base material is suppressed, so the content was set to 0.1 to 2%.
【００１３】（ｈ） ＮｉおよびＣｏ これらの成分には、素地に固溶して、強度と靭性を向上
させる作用があるので、必要に応じて含有されるが、そ
の含有量がいずれの場合もそれぞれ０．１％未満では前
記作用に所望の向上効果が得られず、一方その含有量が
Ｎｉ：２％、およびＣｏ：５％を越えると素地の硬さが
低下し、耐摩耗性が低下するようになることから、その
含有量をＮｉ：０．１〜２％およびＣｏ：０．１〜５％
と定めた。(H) Ni and Co These components have the function of forming a solid solution in the matrix to improve the strength and toughness, so they are contained as necessary, but in any case the content is any. If the content is less than 0.1%, the desired effect cannot be obtained. On the other hand, if the content exceeds Ni: 2% and Co: 5%, the hardness of the base material decreases and the wear resistance decreases. Therefore, the content of Ni is 0.1 to 2% and Co is 0.1 to 5%.
I decided.
【００１４】（ｉ） 空孔率 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、相手攻撃性が現
われるようになり、一方その割合が２０％を越えると耐
摩耗性が急激に低下するようになることから、その割合
を５〜２０％と定めた。(I) Porosity If the proportion is less than 5%, lead impregnation is not sufficiently carried out,
As a result, not only sufficient airtightness, corrosion resistance, and conformability cannot be ensured, but also the attacking property of the other party appears, while if the ratio exceeds 20%, the wear resistance is sharply reduced. Therefore, the ratio is set to 5 to 20%.
【００１５】[0015]
【実施例】つぎに、この発明のコンプレッサ用摺動部材
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１００mesh以下の粒度をもち、かつ表１〜３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Ａ１〜Ａ１７並びにＢ１〜Ｂ５、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〜ｌ並びに金属Ｍｏ粉末、そして粒度：−３２５me
sh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、１０９０〜１１２０℃の範囲内の所定の温度に
１．５時間保持の条件で焼結し、引続いて１０００〜１
０５０℃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、マルテン
サイト素地に平均粒径で１０μｍ以下の微細な炭化物を
均一に析出させることにより、実質的に配合組成と同一
の成分組成を有し、いずれも幅：２０mm×長さ：１７mm
×厚さ：４mmの長方形板状にして、相手部材であるロー
ラーピストンと当接する長手方向の片側端面をＲ４の曲
面としてロータリーコンプレッサのベーン部材形状と
し、かつ同じく表４，５に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基焼結合金製摺動
部材（以下、従来焼結摺動部材という）１〜５を製造
し、さらに前記従来焼結摺動部材１〜５を除いた前記Ｆ
ｅ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、
５００℃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基焼結合金製摺動部
材（以下、本発明鉛含浸焼結摺動部材という）１〜１７
をそれぞれ製造した。EXAMPLES Next, the sliding member for a compressor of the present invention will be specifically described by way of examples. Fe as a raw material powder for forming a water atomized base material having a particle size of 100 mesh or less and having the component composition shown in Tables 1 to 3
Base alloy powders A1 to A17 and B1 to B5, and 10
Has a predetermined average particle size within the range of ˜50 μm, and Table 3
Mo-based alloy powders a to 1 for forming a dispersed phase and a metal Mo powder having the component composition shown in FIG.
Prepare graphite powder of sh or less,
5, the mixture was wet-mixed in a ball mill for 72 hours, dried, and then press-molded into a green compact at a predetermined pressure within the range of 5 to 7 ton / cm 2 , and the green compact was Sintered in vacuum at a predetermined temperature within the range of 1090 to 1120 ° C. for 1.5 hours and then 1000 to 1
Quenching by forced gas cooling from a predetermined temperature in the range of 050 ° C. and tempering heat treatment of holding for 2 hours at a predetermined temperature in the range of 500 to 600 ° C. are repeated twice, and the martensite matrix has an average particle size of 10 μm. By uniformly precipitating the following fine carbides, they have substantially the same compositional composition as the compounding composition, both width: 20 mm x length: 17 mm
× Thickness: a rectangular plate having a thickness of 4 mm, and one end face in the longitudinal direction that abuts the roller piston as a mating member has a curved surface of R4 to form the vane member shape of the rotary compressor, and the holes shown in Tables 4 and 5 also. Fe with a rate
A conventional Fe-based sintered alloy sliding 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 sliding member) 1 to 5, and the above-mentioned F except that the conventional sintered sliding members 1 to 5 are excluded
The combination shown in Tables 4 and 5 was applied to the e-based sintered alloy in a nitrogen atmosphere with a pressure of 8 kg / cm 2 applied to the bath surface.
The lead-impregnated Fe-based sintered alloy sliding member according to the present invention is obtained by impregnating lead in a bath of pure lead or a Pb alloy having a composition of Pb-5% Sn heated to 500 ° C. under the condition of immersion and holding for 1 hour. Hereinafter referred to as lead-impregnated sintered sliding member of the present invention) 1 to 17
Were manufactured respectively.
【００１６】[0016]
【表１】 [Table 1]
【００１７】[0017]
【表２】 [Table 2]
【００１８】[0018]
【表３】 [Table 3]
【００１９】[0019]
【表４】 [Table 4]
【００２０】[0020]
【表５】 [Table 5]
【００２１】つぎに、この結果得られた本発明鉛含浸焼
結摺動部材１〜１７および従来焼結摺動部材１〜５を、 圧縮室の寸法：内径４１mm×幅２０mm、 ローラーピストンの材質：ＦＣ３００の熱処理材、 ローラーピストンの寸法：外径３２mm×幅２０mm、 からなるロータリーコンプレッサに組込み、 使用冷媒：フロン１３４ａ、 ローラーピストンへの押付力：２１kgf 、 ローラーピストンの回転数：９５０r.p.m 、 試験時間：８００時間、 の条件で実機試験を行ない、最大摩耗深さを測定した。
これらの測定結果を表４，５に相手部材であるローラー
ピストンの最大摩耗深さと共に示した。Next, the lead-impregnated sintered sliding members 1 to 17 of the present invention and the conventional sintered sliding members 1 to 5 obtained as a result of the above are compressed chamber dimensions: inner diameter 41 mm × width 20 mm, roller piston material. : Heat treated material of FC300, roller piston size: outer diameter 32mm x width 20mm, built into a rotary compressor consisting of: Refrigerant used: Freon 134a, pressing force on roller piston: 21kgf, rotation speed of roller piston: 950r.pm, Test time: 800 hours, an actual machine test was carried out under the conditions, and the maximum wear depth was measured.
The results of these measurements are shown in Tables 4 and 5 together with the maximum wear depth of the roller piston which is the counterpart member.
【００２２】[0022]
【発明の効果】表４，５に示される結果から、本発明鉛
含浸焼結摺動部材１〜１７は、いずれも厳しい腐食環境
下で従来焼結摺動部材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、この発明のコンプレッサ用鉛
含浸Ｆｅ基焼結合金製摺動部材は、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、ロータリーコンプレッ
サやスクロールコンプレッサなどのコンプレッサの小型
化および軽量化、さらに高性能化に十分対応することが
できるのである。From the results shown in Tables 4 and 5, the lead-impregnated sintered sliding members 1 to 17 of the present invention are much more excellent than the conventional sintered sliding members 1 to 5 in a severe corrosive environment. It is clear that it has excellent wear resistance and its opponent's aggressiveness is extremely low. As described above, the lead-impregnated Fe-based sintered alloy sliding member for a compressor according to the present invention has excellent wear resistance while maintaining extremely low opponent attack property even in practical use under severe conditions. It can be fully utilized to reduce the size and weight of compressors such as rotary compressors and scroll compressors, as well as to improve their performance.
【手続補正書】[Procedure amendment]
【提出日】平成６年１月１９日[Submission date] January 19, 1994
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１０[Correction target item name] 0010
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１０】（ｅ） Ｍｏ Ｍｏ成分にも、Ｃｒと同様に素地中に微細に分散析出す
る炭化物を形成して素地の硬さを向上させるほか、分散
相形成成分が含有するＣｒ，Ｆｅ，Ｎｉ，およびＣｏの
焼結時の素地への拡散を促進して、これの素地に対する
接合強度を向上させる作用があるが、その含有量が１％
未満では前記作用に所望の効果が得られず、一方その含
有量が５％を越えると靭性が低下するようになることか
ら、その含有量を１〜５％と定めた。(E) Mo The Mo component also forms carbides that are finely dispersed and precipitated in the base material in the same manner as Cr to improve the hardness of the base material, and Cr, Fe, Ni contained in the dispersed phase forming component. , And Co have the effect of promoting diffusion into the base material during sintering and improving the bonding strength of the base material, but its content is 1%.
If it is less than the above range, the desired effect cannot be obtained, and if the content exceeds 5%, the toughness is deteriorated. Therefore, the content is defined as 1 to 5%.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１３[Correction target item name] 0013
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１３】（ｈ） ＮｉおよびＣｏ これらの成分には、素地に固溶して、強度と靭性を向上
させる作用があるので、必要に応じて含有されるが、そ
の含有量がいずれの場合もそれぞれ０．１％未満では前
記作用に所望の向上効果が得られず、一方その含有量が
Ｎｉ：２％、およびＣｏ：８％を越えると素地の硬さが
低下し、耐摩耗性が低下するようになることから、その
含有量をＮｉ：０．１〜２％およびＣｏ：０．１〜８％
と定めた。(H) Ni and Co These components have the function of forming a solid solution in the matrix to improve the strength and toughness, so they are contained as necessary, but in any case the content is any. If the content is less than 0.1%, the desired effect cannot be obtained, while if the content exceeds Ni: 2% and Co: 8 %, the hardness of the base material decreases and the wear resistance decreases. Therefore, the content of Ni is 0.1 to 2% and Co is 0.1 to 8 %.
I decided.
Claims (2)
（Ｎｉ，Ｃｏ）合金およびＭｏ−Ｆｅ−（Ｎｉ，Ｃｏ，
Ｃｒ）合金のうちの１種または２種以上：２〜２０％、
を含有し、以下いずれも素地形成成分として、 Ｃ：１〜３％、 Ｓｉ：０．３〜１．５％、 Ｃｒ：８．５〜１６％、 Ｍｏ：１〜５％、 Ｖ：０．４〜３％、 Ｍｎ：０．１〜２％、 を含有し、残りがＦｅと不可避不純物からなる組成（以
上重量％）、並びに５〜２０％の空孔率を有し、かつ素
地が、微細な炭化物が分散析出したマルテンサイト組織
からなるＦｅ基焼結合金に、ＰｂまたはＰｂ合金を溶浸
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コンプレッサ用鉛含浸Ｆｅ基焼
結合金製摺動部材。1. Mo-Cr- as a dispersed phase forming component
(Ni, Co) alloy and Mo-Fe- (Ni, Co,
One or more of Cr) alloys: 2 to 20%,
C: 1 to 3%, Si: 0.3 to 1.5%, Cr: 8.5 to 16%, Mo: 1 to 5%, V: 0. 4 to 3%, Mn: 0.1 to 2%, and the balance consisting of Fe and unavoidable impurities (more than wt%), and a porosity of 5 to 20%, and the substrate is A compressor having excellent wear resistance, characterized in that it is made of a lead-impregnated Fe-based sintered alloy obtained by infiltrating Pb or Pb alloy into an Fe-based sintered alloy having a martensite structure in which fine carbides are dispersed and precipitated. Lead-impregnated Fe-based sintered alloy sliding member for use.
（Ｎｉ，Ｃｏ）合金およびＭｏ−Ｆｅ−（Ｎｉ，Ｃｏ，
Ｃｒ）合金のうちの１種または２種以上：２〜２０％、
を含有し、以下いずれも素地形成成分として、 Ｃ：１〜３％、 Ｓｉ：０．３〜１．５％、 Ｃｒ：８．５〜１６％、 Ｍｏ：１〜５％、 Ｖ：０．４〜３％、 Ｍｎ：０．１〜２％、 を含有し、さらに、 Ｎｉ：０．１〜２％、 Ｃｏ：０．１〜８％、 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（以上重量％）、並びに５〜２０
％の空孔率を有し、かつ素地が、微細な炭化物が分散析
出したマルテンサイト組織からなるＦｅ基焼結合金に、
ＰｂまたはＰｂ合金を溶浸してなる鉛含浸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コン
プレッサ用鉛含浸Ｆｅ基焼結合金製摺動部材。2. Mo-Cr- as a dispersed phase forming component
(Ni, Co) alloy and Mo-Fe- (Ni, Co,
One or more of Cr) alloys: 2 to 20%,
C: 1 to 3%, Si: 0.3 to 1.5%, Cr: 8.5 to 16%, Mo: 1 to 5%, V: 0. 4 to 3%, Mn: 0.1 to 2%, and Ni: 0.1 to 2%, Co: 0.1 to 8%, and one or two of , A composition in which the balance is Fe and inevitable impurities (above wt%), and 5 to 20
% Fe-based sintered alloy having a porosity of 10% and a matrix having a martensite structure in which fine carbides are dispersed and precipitated,
A lead-impregnated Fe-based sintered alloy sliding member for a compressor, which is excellent in wear resistance and is composed of a lead-impregnated Fe-based sintered alloy obtained by infiltrating Pb or a Pb alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5251195A JPH0790323A (en) | 1993-09-13 | 1993-09-13 | Sliding member made of lead-impregnated fe-based sintered alloy for compressor excellent in wear resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5251195A JPH0790323A (en) | 1993-09-13 | 1993-09-13 | Sliding member made of lead-impregnated fe-based sintered alloy for compressor excellent in wear resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0790323A true JPH0790323A (en) | 1995-04-04 |
Family
ID=17219102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5251195A Withdrawn JPH0790323A (en) | 1993-09-13 | 1993-09-13 | Sliding member made of lead-impregnated fe-based sintered alloy for compressor excellent in wear resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0790323A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1331395A3 (en) * | 2002-01-24 | 2003-09-10 | Copeland Corporation | Powder metal scrolls |
| US8684711B2 (en) | 2007-01-26 | 2014-04-01 | Emerson Climate Technologies, Inc. | Powder metal scroll hub joint |
| US8955220B2 (en) | 2009-03-11 | 2015-02-17 | Emerson Climate Technologies, Inc. | Powder metal scrolls and sinter-brazing methods for making the same |
-
1993
- 1993-09-13 JP JP5251195A patent/JPH0790323A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1331395A3 (en) * | 2002-01-24 | 2003-09-10 | Copeland Corporation | Powder metal scrolls |
| US6705848B2 (en) | 2002-01-24 | 2004-03-16 | Copeland Corporation | Powder metal scrolls |
| US7086151B2 (en) | 2002-01-24 | 2006-08-08 | Copeland Corporation | Powder metal scrolls |
| EP1500818A3 (en) * | 2002-01-24 | 2008-01-02 | Emerson Climate Technologies, Inc. | Powder metal scroll for a scroll compressor |
| CN100400204C (en) * | 2002-01-24 | 2008-07-09 | 爱默生气候技术公司 | Powder metal scrolls |
| US7845918B2 (en) | 2002-01-24 | 2010-12-07 | Emerson Climate Technologies, Inc. | Powder metal scrolls |
| EP2282060A3 (en) * | 2002-01-24 | 2013-05-01 | Emerson Climate Technologies, Inc. | Powder metal scrolls |
| US8568117B2 (en) | 2002-01-24 | 2013-10-29 | Emerson Climate Technologies, Inc. | Powder metal scrolls |
| CN103624486A (en) * | 2002-01-24 | 2014-03-12 | 艾默生环境优化技术有限公司 | Scroll member and manufacturing method therefor |
| CN103624486B (en) * | 2002-01-24 | 2017-04-12 | 艾默生环境优化技术有限公司 | Scroll member and manufacturing method therefor |
| US8684711B2 (en) | 2007-01-26 | 2014-04-01 | Emerson Climate Technologies, Inc. | Powder metal scroll hub joint |
| US8955220B2 (en) | 2009-03-11 | 2015-02-17 | Emerson Climate Technologies, Inc. | Powder metal scrolls and sinter-brazing methods for making the same |
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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 |