JPH06307453A - Plural layer bearing and manufacture thereof - Google Patents
Plural layer bearing and manufacture thereofInfo
- Publication number
- JPH06307453A JPH06307453A JP11915193A JP11915193A JPH06307453A JP H06307453 A JPH06307453 A JP H06307453A JP 11915193 A JP11915193 A JP 11915193A JP 11915193 A JP11915193 A JP 11915193A JP H06307453 A JPH06307453 A JP H06307453A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- layer
- resin powder
- tetrafluoroethylene
- ptfe
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000000843 powder Substances 0.000 claims abstract description 124
- 229920005989 resin Polymers 0.000 claims abstract description 57
- 239000011347 resin Substances 0.000 claims abstract description 57
- 239000002184 metal Substances 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 10
- 229920006026 co-polymeric resin Polymers 0.000 claims description 8
- PEVRKKOYEFPFMN-UHFFFAOYSA-N 1,1,2,3,3,3-hexafluoroprop-1-ene;1,1,2,2-tetrafluoroethene Chemical group FC(F)=C(F)F.FC(F)=C(F)C(F)(F)F PEVRKKOYEFPFMN-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 229920006172 Tetrafluoroethylene propylene Polymers 0.000 claims 1
- -1 ethylene-hexafluoropropylene Chemical group 0.000 claims 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 47
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract description 47
- 238000005299 abrasion Methods 0.000 abstract description 5
- 239000011230 binding agent Substances 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract description 2
- XPEZVQDSLVQKOT-UHFFFAOYSA-N CC=C.C=C.F.F.F.F.F.F.F.F.F.F Chemical compound CC=C.C=C.F.F.F.F.F.F.F.F.F.F XPEZVQDSLVQKOT-UHFFFAOYSA-N 0.000 abstract 2
- PYVHTIWHNXTVPF-UHFFFAOYSA-N F.F.F.F.C=C Chemical compound F.F.F.F.C=C PYVHTIWHNXTVPF-UHFFFAOYSA-N 0.000 abstract 2
- 238000007334 copolymerization reaction Methods 0.000 abstract 2
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 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
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
- Lubricants (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は複層軸受ならびにその製
造方法に係り、詳しくは、自動車用ミッションのシフト
ガイドやワイパ−ヘッドア−ム等の如く、摺動や揺動運
動する部分の軸受材料として好適であって、表面の軸受
層が四フッ化エチレン樹脂（以下ＰＴＦＥという）粉末
に四フッ化エチレン−六フッ化プロピレン共重合樹脂
（以下ＦＥＰという）粉末を配合したものから成って、
摩擦性、耐摩耗性等にすぐれる複層軸受ならびにその製
造方法に係る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-layer bearing and a method for manufacturing the same, and more particularly, to a bearing material for a portion that slides or oscillates, such as a shift guide or wiper head arm of an automobile mission. And the surface bearing layer is composed of tetrafluoroethylene resin (hereinafter referred to as PTFE) powder mixed with tetrafluoroethylene-hexafluoropropylene copolymer resin (hereinafter referred to as FEP) powder,
The present invention relates to a multi-layer bearing having excellent friction properties and wear resistance, and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】従来から、種々の複層軸受が提案実施さ
れ、この複層軸受は一般に、鋼板等の裏金上に被着され
た多孔質金属焼結層（以下、多孔質層という）を被着形
成し、この多孔質層中に樹脂を固体潤滑剤等とともに含
浸しかつ被覆して表面に軸受層として表面樹脂層を設け
たものである。すなわち、例えば特公昭６１−２８８４
６公報には、多孔質層に含浸すべき樹脂をＰＴＦＥのほ
かにＦＥＰから構成し、この樹脂によって表面に軸受層
を構成した被覆軸受が記載されている。また、特公昭６
３−５７６４５号公報には、ＰＴＦＥとＦＥＰとを共凝
析させて一体化した樹脂粉末を多孔質層に含浸した複層
軸受が記載されている。これら軸受層を形成する樹脂
は、低摩擦性を有するＰＴＦＥと耐摩耗性を有するＦＥ
Ｐを混合し、低摩擦性と耐摩耗性を併せもつことを特徴
としている。しかし、これら従来例の軸受層を成す樹脂
の摩擦係数のレベルでは、最近の低フリクション化の要
求に対し、満足できないという問題があった。2. Description of the Related Art Conventionally, various multi-layer bearings have been proposed and implemented, and generally, these multi-layer bearings have a porous metal sintered layer (hereinafter referred to as a porous layer) deposited on a back metal such as a steel plate. It is formed by deposition, and the porous layer is impregnated with a resin together with a solid lubricant or the like and coated to form a surface resin layer as a bearing layer on the surface. That is, for example, Japanese Patent Publication No. 61-2884.
Japanese Patent Laid-Open Publication No. 6-65 describes a coated bearing in which the resin to be impregnated into the porous layer is composed of FEP in addition to PTFE, and a bearing layer is formed on the surface of this resin. In addition, Japanese public Sho6
Japanese Patent Laid-Open No. 3-57645 describes a multi-layer bearing in which a porous layer is impregnated with resin powder obtained by co-coagulating PTFE and FEP into a single body. The resin forming these bearing layers is made of PTFE having low friction and FE having wear resistance.
It is characterized by mixing P with low friction and abrasion resistance. However, at the level of the friction coefficient of the resin forming the bearing layer in these conventional examples, there is a problem that the recent demand for low friction cannot be satisfied.
【０００３】[0003]
【発明が解決しようとする課題】本発明はこれらの問題
点の解決を目的とし、具体的には、鋼板等の裏金上に被
着形成された多孔質層中にＰＴＦＥ粉末とＦＥＰ粉末を
含浸させて表面の軸受層を形成する複層軸受において、
ＰＴＦＥ粉末の周囲にＦＥＰ粉末を付着した状態で含浸
してＰＴＦＥ粉末の低摩擦性を損なうことなく耐摩耗性
を向上させた複層軸受ならびにその製造方法を提案する
ことを目的とする。The present invention is intended to solve these problems, and specifically, impregnates a PTFE layer and a FEP powder into a porous layer formed on a backing metal such as a steel plate. In a multi-layer bearing in which the surface bearing layer is formed,
It is an object of the present invention to propose a multi-layer bearing in which FEP powder is impregnated around the PTFE powder in a state of being adhered to the PTFE powder to improve wear resistance without impairing the low friction property of the PTFE powder, and a manufacturing method thereof.
【０００４】[0004]
【課題を解決するための手段】すなわち、本発明は鋼板
等の裏金の上に多孔質層を被着形成し、この多孔質層上
に一部がこの多孔質層中に含浸される状態で表面樹脂層
を被着形成した複層軸受において、この表面樹脂層をＰ
ＴＦＥ粉末の周囲に、ＦＥＰ粉末を付着させた状態で、
一部が前記多孔質層中に含浸し、他部が前記多孔質層上
をおおって被着するよう構成して成ることを特徴とし、
また、鋼板等の裏金上に被着形成された多孔質層に対し
ＰＴＦＥ粉末とともにＦＥＰ粉末を含浸被覆し焼成して
複層軸受を製造する際に、ＰＴＦＥ粉末の少なくとも表
面に主成分として有機溶剤を含む溶液を湿潤させたのち
に、ＰＴＦＥ粉末の表面にＦＥＰ粉末を付着させ、その
後、この状態でＰＴＦＥ粉末とともにＦＥＰ粉末を多孔
質層に対し含浸被覆後、焼成被着することを特徴とす
る。That is, according to the present invention, a porous layer is formed by depositing on a backing metal such as a steel plate, and the porous layer is partially impregnated in the porous layer. In a multi-layer bearing having a surface resin layer deposited thereon, this surface resin layer is
With the FEP powder attached around the TFE powder,
One part is impregnated into the porous layer, and the other part is configured to be deposited over the porous layer,
Further, when manufacturing a multi-layer bearing by impregnating and coating a porous layer formed on a backing metal such as a steel sheet with PTFE powder and FEP powder, an organic solvent is used as a main component on at least the surface of the PTFE powder. After moistening the solution containing the FEP powder, the FEP powder is adhered to the surface of the PTFE powder, and then, in this state, the FEP powder is impregnated and coated with the PTFE powder on the porous layer, and then baked and deposited. .
【０００５】以下さらに本発明の構成について詳しく説
明する。The structure of the present invention will be described in detail below.
【０００６】すなわち、本発明に係る複層軸受は、鋼板
等の裏金上の多孔質層上にフッ素系樹脂を含浸して表面
樹脂層を被着形成した複層軸受であって、とくに、この
表面樹脂層は、ＰＴＦＥ粉末にＦＥＰ粉末を配合し、し
かも、このＦＥＰ粉末をＰＴＦＥ粉末の周囲に付着させ
た状態で、ＰＴＦＥ粉末とともに多孔質層に含浸させて
構成することを特徴とするものであり、また、この構成
に係る複層軸受を製造するときには、予め、鋼板等の裏
金上に多孔質層を被着形成してから、この多孔質層にＰ
ＴＦＥ粉末とＦＥＰ粉末とを含浸被覆焼成して表面樹脂
層を形成するが、この際に、ＰＴＦＥ粉末に有機溶剤等
を添加して混合撹拌して、少なくともその表面を湿潤さ
せてから、このＰＴＦＥ粉末にＦＥＰ粉末を添加混合す
ることによって、ＰＴＦＥ粉末表面にＦＥＰ粉末を付着
し、この状態でＰＴＦＥ粉末とともにＦＥＰ粉末を多孔
質層に含浸被覆し、焼成することを特徴とする。That is, the multi-layer bearing according to the present invention is a multi-layer bearing in which a surface resin layer is formed by impregnating a fluororesin on a porous layer on a backing metal such as a steel plate. The surface resin layer is characterized in that PTFE powder is mixed with FEP powder, and the FEP powder is adhered to the periphery of the PTFE powder to impregnate the porous layer together with the PTFE powder. When manufacturing a multi-layer bearing according to this structure, a porous layer is formed on a back metal such as a steel plate in advance, and then P is formed on the porous layer.
A surface resin layer is formed by impregnating and coating TFE powder and FEP powder to form a surface resin layer. At this time, an organic solvent or the like is added to the PTFE powder and mixed and stirred to wet at least the surface of the PTFE powder. It is characterized in that the FEP powder is adhered to the surface of the PTFE powder by adding and mixing the FEP powder to the powder, and in this state, the FEP powder is impregnated and coated with the PTFE powder into the porous layer and then baked.
【０００７】そこで、本発明の手段たる構成ならびにそ
の作用について図面によって具体的に説明すると、次の
通りである。Therefore, the structure and the operation of the means of the present invention will be described in detail with reference to the drawings.
【０００８】まず、図１は本発明の満つの実施例に係る
複層軸受の一部を示す断面図であり、図２は図１の表面
樹脂層の状態を示す説明図である。図中の符号１は裏
金、２は多孔質層、３は表面樹脂層、４はＰＴＦＥ粉
末、５はＦＥＰ粉末を示す。First, FIG. 1 is a sectional view showing a part of a multi-layer bearing according to a full embodiment of the present invention, and FIG. 2 is an explanatory view showing a state of a surface resin layer of FIG. In the figure, reference numeral 1 is a back metal, 2 is a porous layer, 3 is a surface resin layer, 4 is PTFE powder, and 5 is FEP powder.
【０００９】まず、図１に示すように、多孔質層２は従
来例と同様にＣｕ、Ａｌその他の金属粉末を裏金１の表
面に被着され、金属粉末間に多数の孔隙が形成されてい
る。また、多孔質層２の上に表面樹脂層３を被着形成す
る。この表面樹脂層３の一部、つまり、裏面は多孔質層
２の孔隙中に含浸する一方、他部、つまり表面は多孔質
層２の上をおおって軸受面を構成する。First, as shown in FIG. 1, the porous layer 2 is formed by depositing Cu, Al and other metal powders on the surface of the backing metal 1 in the same manner as in the conventional example to form a large number of pores between the metal powders. There is. Further, the surface resin layer 3 is adhered and formed on the porous layer 2. Part of the surface resin layer 3, that is, the back surface, impregnates the pores of the porous layer 2, while the other part, that is, the surface, covers the porous layer 2 to form a bearing surface.
【００１０】次に、以上の構成からなる表面樹脂層３は
図２に示す如く、ＰＴＦＥ粉末４をその周囲にＦＥＰ粉
末５を付着させた状態で多孔質層２中に含浸しかつ多孔
質層２の表面をおおうよう被着形成する。Next, as shown in FIG. 2, the surface resin layer 3 having the above-mentioned structure is obtained by impregnating the porous layer 2 with the PTFE powder 4 and the FEP powder 5 attached to the periphery of the PTFE powder 4. The coating is formed so as to cover the surface of 2.
【００１１】上記の如く、従来例においても表面樹脂層
はＰＴＦＥやＦＥＰ等の粉末から構成されている。しか
し、ＦＥＰ粉末の粒子の大きさ及び製法によりＦＥＰ粉
末の分散状態は大きく異なっており、表面樹脂層はＦＥ
Ｐ粉末の大きな粒子が繊維化されてＦＥＰ粉末がリッチ
となったり微細ＦＥＰ粉末の粒子が均一に分散したりし
て、前者では耐摩耗性のため摩擦性が犠牲になっている
し、後者では耐摩耗性を上げるためにはＦＥＰ粉末の量
を増やす必要があり、いずれも耐摩耗性を上げることで
ＰＴＦＥ粉末４の本来の摩擦性は損なわれている。As described above, even in the conventional example, the surface resin layer is made of powder such as PTFE or FEP. However, the dispersion state of the FEP powder varies greatly depending on the particle size of the FEP powder and the manufacturing method, and the surface resin layer is FE.
The large particles of P powder become fibrous and the FEP powder becomes rich, or the particles of fine FEP powder are uniformly dispersed. In the former case, the frictional property is sacrificed due to wear resistance, and in the latter case. In order to increase the wear resistance, it is necessary to increase the amount of the FEP powder, and in either case, the original friction property of the PTFE powder 4 is impaired by increasing the wear resistance.
【００１２】これに対し、本発明においては、ＦＥＰ粉
末５の粒子を最適にすることにより、また、このＦＥＰ
粉末５の添加で摩擦性を損なうことなく耐摩耗性を向上
させている。本発明に使用されるＰＴＦＥ粉末４の粒径
は通常平均３００〜６００μｍ程度である。このＰＴＦ
Ｅ粉末４の周囲には、ＰＴＦＥ粉末４の耐摩耗性を向上
させるために、ＰＴＦＥ粉末４より耐摩耗性に優れてい
る粒径４５〜６５μｍのＦＥＰ粉末５を添加し、付着さ
せる。本発明はこのＦＥＰ粉末５を予めＰＴＦＥ粉末４
の周囲に付着させた状態で含浸する。On the other hand, in the present invention, by optimizing the particles of the FEP powder 5,
The addition of powder 5 improves wear resistance without impairing frictional properties. The particle size of the PTFE powder 4 used in the present invention is usually about 300 to 600 μm on average. This PTF
In order to improve the wear resistance of the PTFE powder 4, FEP powder 5 having a particle size of 45 to 65 μm, which is more excellent in wear resistance than the PTFE powder 4, is added and adhered to the periphery of the E powder 4. According to the present invention, this FEP powder 5 is previously converted into PTFE powder 4
Impregnate in the state of being attached to the periphery of.
【００１３】すなわち、ＰＴＦＥ粉末４と粒径の大きく
異なるＦＥＰ粉末５を表面樹脂層３中に均一に分散させ
るにはＰＴＦＥ粉末４の周囲にＦＥＰ粉末５を付着させ
て含浸することが最も効果的である。That is, in order to uniformly disperse the FEP powder 5 having a particle size greatly different from that of the PTFE powder 4 in the surface resin layer 3, it is most effective to attach the FEP powder 5 around the PTFE powder 4 and impregnate it. Is.
【００１４】表面樹脂層３は重量％でＰＴＦＥ粉末４の
量が９６〜９８％とＦＥＰ粉末５の量が２〜４％との割
合から構成するのが好ましい。ＰＴＦＥ粉末４に添加す
る表面樹脂をＦＥＰ粉末５とする理由は、上記の如くＦ
ＥＰ粉末５であると、表面樹脂層３の焼成時に溶融状態
での流動性が良好で、機械的強度もＰＴＦＥ粉末４より
優れ、耐摩耗性を向上させるからである。この場合、Ｆ
ＥＰ粉末が２重量％以下では耐摩耗性の改善がほとんど
なく、また、４重量％以上では摩擦係数が上がり潤滑性
が損なわれる。It is preferable that the surface resin layer 3 is composed of 96% to 98% by weight of the PTFE powder 4 and 2% to 4% of the FEP powder 5 by weight. The reason why the surface resin added to the PTFE powder 4 is FEP powder 5 is as described above.
This is because the EP powder 5 has good fluidity in a molten state when the surface resin layer 3 is fired, mechanical strength is superior to that of the PTFE powder 4, and abrasion resistance is improved. In this case, F
If the EP powder content is 2% by weight or less, the wear resistance is hardly improved, and if it is 4% by weight or more, the friction coefficient increases and the lubricity is impaired.
【００１５】次に、本発明の複層軸受の製造方法につい
て述べる。Next, a method of manufacturing the multi-layer bearing of the present invention will be described.
【００１６】まず、平均粒径３００〜６００μｍのＰＴ
ＦＥ粉末に石油系溶剤を加えて撹拌混合して粉末を湿潤
させる。次に、この湿潤したＰＴＦＥ粉末に平均粒径４
５〜６５μｍのＦＥＰ粉末を混合し、このＰＴＦＥ粉末
の表面をＦＥＰ粉末で覆う。こうすることによってＦＥ
Ｐ粉末を偏析させることなく均一に分散でき、また、流
動性が良く取扱いが容易なため、ホッパ−等から簡単に
多孔質層上に供給し、散布できる。First, PT having an average particle size of 300 to 600 μm
A petroleum solvent is added to the FE powder and mixed by stirring to wet the powder. Next, the wet PTFE powder was added with an average particle size of 4
FEP powder of 5 to 65 μm is mixed, and the surface of this PTFE powder is covered with FEP powder. By doing this
The P powder can be uniformly dispersed without segregation and has good fluidity and is easy to handle, so that it can be easily supplied onto the porous layer from a hopper or the like and sprayed.
【００１７】その後、ロ−ルを用いて、表面にＦＥＰ粉
末が付着したままのＰＴＦＥ粉末を多孔質層の孔隙中に
圧入する。Then, using a roll, the PTFE powder with the FEP powder still attached to the surface is pressed into the pores of the porous layer.
【００１８】次に、所望に応じて加熱し、湿潤時の溶
液、例えば石油系溶剤等を加熱して取り去った後、温度
３５０〜４５０℃、例えば、３８０℃の温度で５〜３０
分間焼成し、各樹脂粉末同志を密着させ、その後、所望
に応じて、ロ−ル圧下によって寸法調整を行ない、表面
に樹脂層が形成された複層軸受を得る。Next, after heating as desired, the wet solution such as a petroleum solvent is removed by heating, and then the temperature is 350 to 450 ° C., for example, 5 to 30 at a temperature of 380 ° C.
After baking for a minute, the resin powders are brought into close contact with each other, and then, if desired, the dimensions are adjusted by rolling down to obtain a multilayer bearing having a resin layer formed on the surface.
【００１９】また、このときにＰＴＦＥ粉末の平均粒径
は３００〜６００μｍの範囲にするのが好ましい。すな
わち、３００μｍ未満では粉末の混合時に剪断力を受け
て繊維化し易く、この形状ではロ−ルでの圧入が困難に
なり、６００μｍ超ではＦＥＰ粉末と均一に混合できな
くなるからである。一方、ＦＥＰ粉末の平均粒径も４５
〜６５μｍの範囲が好ましいが、この理由は４５μｍ未
満では耐摩耗性の改善が充分でなく、６５μｍ超ではＰ
ＴＦＥ粉末と均一に混合できないからである。At this time, the average particle size of the PTFE powder is preferably in the range of 300 to 600 μm. That is, if it is less than 300 μm, it tends to be formed into fibers due to shearing force when the powder is mixed, and it becomes difficult to press-fit with a roll in this shape, and if it exceeds 600 μm, it cannot be uniformly mixed with the FEP powder. On the other hand, the average particle size of FEP powder is also 45
The range of up to 65 μm is preferable, but the reason is that if it is less than 45 μm, the abrasion resistance is not sufficiently improved, and if it exceeds 65 μm, the P
This is because it cannot be uniformly mixed with the TFE powder.
【００２０】[0020]
【実施例】次に、実施例について説明する。EXAMPLES Next, examples will be described.
【００２１】実施例１ まず、平均粒径５００μｍのＰＴＦＥのファインパウダ
−に、これを１００重量部として石油系溶剤３０重量部
を加えて混合し湿潤させた。このＰＴＦＥ粉末を２４時
間放置して十分に熟成して完全に石油系溶剤を十分に樹
脂粉末を湿潤させた。その後、平均粒径５５μｍのＦＥ
Ｐ粉末を３重量％添加し、ＰＴＦＥ粉末が剪断力を受け
ないように混合撹拌した。この結果、図２に示すよう
に、ＰＴＦＥ粉末４の表面にＦＥＰ粉末５が付着し、そ
の表面を覆った構造となった。Example 1 First, 30 parts by weight of a petroleum solvent was added to a fine powder of PTFE having an average particle diameter of 500 μm as 100 parts by weight, and mixed and wet. The PTFE powder was left to stand for 24 hours to be sufficiently aged to completely wet the resin powder with the petroleum solvent. After that, FE with an average particle size of 55 μm
3% by weight of P powder was added, and the PTFE powder was mixed and stirred so as not to receive shearing force. As a result, as shown in FIG. 2, the structure was such that the FEP powder 5 adhered to the surface of the PTFE powder 4 and covered the surface.
【００２２】次に、この表面被覆粉末を図１に示すよう
な帯状鋼板（厚さ０．７５ｍｍ）に青銅系粉末を焼結し
てなる多孔質層（厚さ０．２５ｍｍ）の上からホッパを
介して定量的に散布してロ−ルで圧入した。Next, the surface-coated powder was applied to a belt-shaped steel plate (thickness 0.75 mm) shown in FIG. 1 and bronze-based powder was sintered to form a porous layer (thickness 0.25 mm) on the hopper. It was sprayed quantitatively through the flask and pressed with a roll.
【００２３】次に、石油系溶剤を加熱して取り去った
後、３８０℃で１０分間焼成し粉末同志を密着させた
後、更にロ−ルで圧下して寸法調整を行ない、表面に樹
脂層が形成された複層軸受を得た。Next, after removing the petroleum solvent by heating, the powder is fired at 380 ° C. for 10 minutes to bring the powders into close contact with each other, and then further rolled down to adjust the dimensions, and the resin layer is formed on the surface. The formed multi-layer bearing was obtained.
【００２４】[0024]
【発明の効果】以上詳しく説明した通り、本発明は、複
層軸受ならびにその製造方法に係り、その特徴とすると
ころは、鋼板等の裏金の上に被着形成された多孔質層中
に、一部が含浸された状態で表面に被着形成される表面
樹脂層を、ＰＴＦＥ粉末を、その周囲にＦＥＰ粉末を付
着させた状態で含浸して被着し、焼付けて成ることであ
る。従って、これら各樹脂はそれぞれが個別的に所定の
潤滑性能を発揮するが、表面樹脂層内ではＰＴＦＥ粉末
はマトリクスとして、ＦＥＰ粉末はＰＴＦＥ粉末同志を
結びつけるバインダ−として存在するため、摺動、揺動
等の条件下でも低摩擦性を有し、これに併せて十分な耐
摩耗性を持つ。As described in detail above, the present invention relates to a multi-layer bearing and a manufacturing method thereof, which is characterized in that a porous layer adhered and formed on a backing metal such as a steel plate is That is, the surface resin layer formed on the surface in a partially impregnated state is impregnated with PTFE powder in a state in which FEP powder is attached to the periphery of the surface resin layer, adhered, and baked. Therefore, each of these resins individually exhibits a predetermined lubrication performance, but in the surface resin layer, the PTFE powder exists as a matrix and the FEP powder exists as a binder that binds the PTFE powders together, so that sliding and shaking are caused. It has low friction properties even under dynamic conditions, and also has sufficient wear resistance.
【図１】本発明の一つの実施例に係る複層軸受の一部を
示す断面図である。FIG. 1 is a cross-sectional view showing a part of a multi-layer bearing according to one embodiment of the present invention.
【図２】図１の表面樹脂層の状態を示す説明図である。FIG. 2 is an explanatory diagram showing a state of a surface resin layer of FIG.
１ 鋼板等の裏金 ２ 多孔質層 ３ 表面樹脂層 ４ ＰＴＦＥ粉末 ５ ＦＥＰ粉末 1 Backing Plate of Steel Plate 2 Porous Layer 3 Surface Resin Layer 4 PTFE Powder 5 FEP Powder
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ１０Ｎ 40:02 50:08 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location C10N 40:02 50:08
Claims (4)
被着形成し、前記多孔質金属焼結層上に一部がこの多孔
質金属焼結層中に含浸される状態で表面樹脂層を被着形
成した複層軸受において、前記表面樹脂層が四フッ化エ
チレン樹脂粉末の周囲に、四フッ化エチレン−六フッ化
プロピレン共重合樹脂粉末を付着させた状態で、一部が
前記多孔質金属焼結層中に含浸され、残部が前記多孔質
金属焼結層上をおおって被着されるよう構成して成るこ
とを特徴とする複層軸受。1. A porous metal sintered layer is adhered and formed on a backing metal such as a steel plate, and the porous metal sintered layer is partially impregnated into the porous metal sintered layer. In a multi-layer bearing having a surface resin layer formed thereon, the surface resin layer is partially surrounded by tetrafluoroethylene-hexafluoropropylene copolymer resin powder around the tetrafluoroethylene resin powder. Is impregnated into the porous metal sintered layer, and the remainder is deposited on the porous metal sintered layer so as to be deposited thereon.
化エチレン樹脂粉末９６〜９８％と前記四フッ化エチレ
ン−六フッ化プロピレン共重合樹脂粉末２〜４％との割
合で含ませることを特徴とする請求項１記載の複層軸
受。2. The surface resin layer is contained in a weight ratio of 96 to 98% of the tetrafluoroethylene resin powder and 2 to 4% of the tetrafluoroethylene-hexafluoropropylene copolymer resin powder. The multi-layer bearing according to claim 1, wherein
径が３００〜６００μｍ、前記四フッ化エチレン−六フ
ッ化プロピレン共重合樹脂粉末の平均粒径が４５〜６５
μｍであることを特徴とする請求項１記載の複層軸受。3. The tetrafluoroethylene resin powder has an average particle size of 300 to 600 μm, and the tetrafluoroethylene-hexafluoropropylene copolymer resin powder has an average particle size of 45 to 65.
The multi-layer bearing according to claim 1, wherein the multi-layer bearing has a thickness of μm.
金属焼結層に対し、四フッ化エチレン樹脂粉末とともに
四フッ化エチレン−六フッ化プロピレン共重合樹脂粉末
を含浸し被覆焼成して複層軸受を製造する際に、前記四
フッ化エチレン樹脂粉末の少なくとも表面に主成分とし
て有機溶剤を含む溶液を湿潤させたのちに、前記四フッ
化エチレン樹脂粉末に前記四フッ化エチレン−六フッ化
プロピレン共重合樹脂粉末を添加して混合撹拌して前記
四フッ化エチレン樹脂粉末の表面に前記四フッ化エチレ
ン−六フッ化プロピレン共重合樹脂粉末を付着させ、そ
の後、この状態で前記四フッ化エチレン樹脂粉末ととも
に前記四フッ化エチレン−六フッ化プロピレン共重合樹
脂粉末を前記多孔質金属焼結層に対し含浸被覆後、焼成
被着することを特徴とする複層軸受の製造方法。4. A porous metal sintered layer adhered and formed on a backing metal such as a steel plate is impregnated with tetrafluoroethylene-hexafluoropropylene copolymer resin powder together with tetrafluoroethylene resin powder, and coated and baked. In manufacturing a multi-layer bearing, the solution containing an organic solvent as a main component is wetted on at least the surface of the tetrafluoroethylene resin powder, and then the tetrafluoroethylene resin powder is mixed with the tetrafluoroethylene resin. -Propylene hexafluoride copolymer resin powder is added, mixed and stirred to adhere the tetrafluoroethylene-propylene hexafluoride copolymer resin powder to the surface of the tetrafluoroethylene resin powder, and then in this state The tetrafluoride ethylene-hexafluoropropylene copolymer resin powder together with the tetrafluoroethylene resin powder is impregnated and coated on the porous metal sintered layer, and then baked and deposited. And a method for manufacturing a multi-layer bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11915193A JPH06307453A (en) | 1993-04-22 | 1993-04-22 | Plural layer bearing and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11915193A JPH06307453A (en) | 1993-04-22 | 1993-04-22 | Plural layer bearing and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06307453A true JPH06307453A (en) | 1994-11-01 |
Family
ID=14754186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11915193A Pending JPH06307453A (en) | 1993-04-22 | 1993-04-22 | Plural layer bearing and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06307453A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11173331A (en) * | 1997-12-11 | 1999-06-29 | Oiles Ind Co Ltd | Multiple-layered sliding member and manufacture thereof |
| WO2005116175A1 (en) * | 2004-05-27 | 2005-12-08 | Kabushiki Kaisha Toyota Jidoshokki | Slide member and method of producing slide member |
| JP2013515624A (en) * | 2009-12-23 | 2013-05-09 | フエデラル―モーグル・ウイースバーデン・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング | Layered composite material |
| CN113386431A (en) * | 2020-03-11 | 2021-09-14 | 大同金属工业株式会社 | Sliding member and method for manufacturing same |
| KR20210114876A (en) * | 2020-03-11 | 2021-09-24 | 다이도 메탈 고교 가부시키가이샤 | Sliding member and method of manufacturing the same |
-
1993
- 1993-04-22 JP JP11915193A patent/JPH06307453A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11173331A (en) * | 1997-12-11 | 1999-06-29 | Oiles Ind Co Ltd | Multiple-layered sliding member and manufacture thereof |
| WO2005116175A1 (en) * | 2004-05-27 | 2005-12-08 | Kabushiki Kaisha Toyota Jidoshokki | Slide member and method of producing slide member |
| JP2013515624A (en) * | 2009-12-23 | 2013-05-09 | フエデラル―モーグル・ウイースバーデン・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング | Layered composite material |
| CN113386431A (en) * | 2020-03-11 | 2021-09-14 | 大同金属工业株式会社 | Sliding member and method for manufacturing same |
| KR20210114876A (en) * | 2020-03-11 | 2021-09-24 | 다이도 메탈 고교 가부시키가이샤 | Sliding member and method of manufacturing the same |
| JP2021143760A (en) * | 2020-03-11 | 2021-09-24 | 大同メタル工業株式会社 | Sliding member and method of producing the same |
| CN113386431B (en) * | 2020-03-11 | 2023-08-18 | 大同金属工业株式会社 | Sliding member and method for manufacturing same |
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