JP2008163955A - Sliding bearing structure manufacturing method - Google Patents

Sliding bearing structure manufacturing method Download PDF

Info

Publication number
JP2008163955A
JP2008163955A JP2006350510A JP2006350510A JP2008163955A JP 2008163955 A JP2008163955 A JP 2008163955A JP 2006350510 A JP2006350510 A JP 2006350510A JP 2006350510 A JP2006350510 A JP 2006350510A JP 2008163955 A JP2008163955 A JP 2008163955A
Authority
JP
Japan
Prior art keywords
sliding
bearing structure
sliding members
manufacturing
sliding bearing
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.)
Granted
Application number
JP2006350510A
Other languages
Japanese (ja)
Other versions
JP4913582B2 (en
Inventor
Masahiko Kawabata
雅彦 川畑
Yoshinori Sasaki
義憲 佐々木
Toru Kamiya
徹 神谷
Kazuya Fukuyama
和也 福山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TORIBOTEX CO Ltd
Electric Power Development Co Ltd
Original Assignee
TORIBOTEX CO Ltd
Electric Power Development Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TORIBOTEX CO Ltd, Electric Power Development Co Ltd filed Critical TORIBOTEX CO Ltd
Priority to JP2006350510A priority Critical patent/JP4913582B2/en
Publication of JP2008163955A publication Critical patent/JP2008163955A/en
Application granted granted Critical
Publication of JP4913582B2 publication Critical patent/JP4913582B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Sliding-Contact Bearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding bearing structure manufacturing method for easily manufacturing a large sliding bearing structure which has improved wear resistance, a smaller friction coefficient and sufficient toughness. <P>SOLUTION: The manufacturing method is provided for the sliding bearing structure 1 which has a plurality of ring-shaped sliding members 3, 3 mounted on a back metal 2 formed of metal. It comprises a step of injection molding a mixture of RB ceramics powder and phenol resin to obtain the plurality of sliding members, a step of adhering the plurality of obtained sliding members to the back metal in axial contact therewith with epoxy resin adhesive, and a step of machine cutting cut allowances previously provided on the inner peripheral face sides of the plurality of sliding members adhered thereto. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、すべり軸受構造体の製造方法に関し、さらに詳しくは、耐摩耗性に優れ且つ摩擦係数が小さく更に十分な靭性を発揮し得る大型のすべり軸受構造体を簡易に製造できるすべり軸受構造体の製造方法に関する。   The present invention relates to a method for manufacturing a sliding bearing structure, and more specifically, a sliding bearing structure that can easily manufacture a large sliding bearing structure that has excellent wear resistance, a small friction coefficient, and can exhibit sufficient toughness. It relates to the manufacturing method.

近年、水力発電機等の大容量化及び高速化に伴って、その発電機で用いられる金属製のすべり軸受の面圧が増大している。そのため、上記金属製のすべり軸受では、その面圧の使用限界に達して、凝着や焼付損傷を起こす恐れがある。また、潤滑油等の管理が煩雑となる。
そこで、上記問題を解決する従来のすべり軸受として、耐摩耗性に優れ且つ摩擦係数が小さなＲＢセラミックス製のスリーブ軸受が知られている（例えば、特許文献１参照）。 In recent years, with an increase in capacity and speed of a hydroelectric generator or the like, the surface pressure of a metal plain bearing used in the generator has increased. For this reason, in the above-described metal sliding bearing, the use limit of the surface pressure may be reached, and adhesion or seizure damage may occur. Moreover, management of lubricating oil etc. becomes complicated.
Therefore, as a conventional plain bearing that solves the above problem, a sleeve bearing made of RB ceramics that is excellent in wear resistance and has a small friction coefficient is known (for example, see Patent Document 1).

上記特許文献１には、脱脂ぬかと熱硬化性樹脂との混合物を不活性ガス中で１次焼成した後、その焼成物を粉砕して炭化粉末（ＲＢセラミックス粉末）とし、当該炭化粉末と熱硬化性樹脂との混合物を加圧成形した後、その成形体を不活性ガス中で２次焼成して得られる多孔質材料（ＲＢセラミックス成形体）をスリーブ軸受２とすることが開示されている。また、上記特許文献１には、内径３ｍｍ、外径５ｍｍ、長さ５ｍｍである比較的小型のスリーブ軸受２が開示されている。
しかし、上記特許文献１では、スリーブ軸受が加圧成形（射出成形）を経て形成されているため、上述のように比較的小型なスリーブ軸受しか製作することができず、その従来のスリーブ軸受を、発電機等で使用される大型のすべり軸受として適用することが困難であった。特に、高荷重で且つ低速の条件で用いられる大型のすべり軸受として必要十分な靭性を発揮できるものの出現が望まれている。 In Patent Document 1, a mixture of degreased bran and a thermosetting resin is first fired in an inert gas, and then the fired product is pulverized to obtain carbonized powder (RB ceramic powder). It is disclosed that the sleeve bearing 2 is a porous material (RB ceramic molded body) obtained by pressure-molding a mixture with a curable resin and then subjecting the molded body to secondary firing in an inert gas. . Patent Document 1 discloses a relatively small sleeve bearing 2 having an inner diameter of 3 mm, an outer diameter of 5 mm, and a length of 5 mm.
However, in Patent Document 1, since the sleeve bearing is formed through pressure molding (injection molding), only a relatively small sleeve bearing can be manufactured as described above. It has been difficult to apply as a large slide bearing used in a generator or the like. In particular, the emergence of a large-sized slide bearing that can exhibit necessary and sufficient toughness under high load and low speed conditions is desired.

特開２００２−１８１０４９号公報JP 2002-181049 A

本発明は、上記現状に鑑みてなされたものであり、耐摩耗性に優れ且つ摩擦係数が小さく更に十分な靭性を発揮し得る大型のすべり軸受構造体を簡易に製造できるすべり軸受構造体の製造方法を提供することを目的とする。   The present invention has been made in view of the above-described situation, and is capable of easily producing a large-sized plain bearing structure that has excellent wear resistance, a small friction coefficient, and can exhibit sufficient toughness. It aims to provide a method.

本発明者は、射出成形で得られる複数の摺動部材（分割体）を軸方向に密着させて摺動面を構成すれば、摺動面の内径及び軸方向長さを比較的大きな値に設定できること、及び射出成形で得られる２次焼成前のＲＢセラミックス成形体を摺動部材として採用すれば、耐摩耗性に優れ且つ摩擦係数が小さく更に十分な靭性を発揮し得ることを知見して、本発明を完成するに到った。
本発明は、以下の通りである。
１．金属製のバックメタルにリング状の複数の摺動部材を装着してなるすべり軸受構造体の製造方法であって、
ＲＢセラミックス粉末とフェノール樹脂とを混合し射出成形して複数の前記摺動部材を得る工程と、
その得られた複数の前記摺動部材を、軸方向に接触するように前記バックメタルにエポキシ樹脂系接着剤で接着する工程と、
その接着された複数の前記摺動部材の内周面側に予め設けられた削り代を機械切削する工程と、を備えることを特徴とするすべり軸受構造体の製造方法。
２．前記エポキシ樹脂系接着剤は、二液硬化型である上記１．記載のすべり軸受構造体の製造方法。 The present inventor can make the inner surface and the axial length of the sliding surface relatively large by forming a sliding surface by closely contacting a plurality of sliding members (divided bodies) obtained by injection molding in the axial direction. Knowing that it can be set, and if the RB ceramic molded body before secondary firing obtained by injection molding is adopted as a sliding member, it has excellent wear resistance and a small friction coefficient, and can exhibit sufficient toughness. The present invention has been completed.
The present invention is as follows.
1. A method of manufacturing a sliding bearing structure in which a plurality of ring-shaped sliding members are mounted on a metal back metal,
A step of mixing RB ceramic powder and phenolic resin and injection molding to obtain a plurality of the sliding members;
Bonding the obtained plurality of sliding members to the back metal with an epoxy resin adhesive so as to contact in the axial direction;
And a step of mechanically cutting a machining allowance provided in advance on the inner peripheral surface side of the plurality of bonded sliding members. A method for manufacturing a sliding bearing structure, comprising:
2. The epoxy resin adhesive is a two-component curable type. The manufacturing method of the sliding bearing structure of description.

本発明のすべり軸受構造体の製造方法によると、１次焼成を経て得られたＲＢセラッミクス粉末とフェノール樹脂とを混合し射出成形して複数の摺動部材が得られ、その得られた２次焼成前の複数の摺動部材が、軸方向に接触するようにバックメタルにエポキシ樹脂系接着剤で接着され、その接着された複数の摺動部材の内周面側に予め設けられた削り代が機械切削される。
このように、射出成形で得られた複数の摺動部材を軸方向に密着させてバックメタルに接着するようにしたので、複数の摺動部材によって摺動面の内径及び軸方向長さを比較的大きな値に設定できる。また、バックメタルに対する接着後に複数の摺動部材の内周面側の削り代を機械切削するようにしたので、フェノール樹脂被膜層を除去して良摩擦特性を発揮し得ると共に、複数の摺動部材の寸法精度を必要十分なものとすることができる。また、複数の摺動部材とバックメタルとをエポキシ樹脂系接着剤で接着するようにしたので、両者の接着強度を必要十分なものとすることができる。さらに、２次焼成前のＲＢセラミックス成形体を摺動部材として採用しているので、耐摩耗性に優れ且つ摩擦係数が小さく更に十分な靭性を発揮させることができる。特に、従来のように２次焼成後のＲＢセラミックス成形体を摺動部材として採用するものに比べて、優れた靭性を発揮させることができる。その結果、発電機等で使用される、高荷重で且つ低速で用いられる大型のすべり軸受構造体を簡易に製作することができる。
また、前記エポキシ樹脂系接着剤が二液硬化型である場合は、複数の摺動部材とバックメタルとの接着強度を更に高めることができる。 According to the method for manufacturing a sliding bearing structure of the present invention, a plurality of sliding members are obtained by mixing RB ceramics powder obtained through primary firing and phenol resin and injection molding them, and the obtained secondary member. A plurality of sliding members before firing are bonded to the back metal with an epoxy resin adhesive so as to contact in the axial direction, and a cutting allowance provided in advance on the inner peripheral surface side of the bonded plurality of sliding members. Is machined.
As described above, since the plurality of sliding members obtained by injection molding are closely adhered to the back metal in the axial direction, the inner diameter and the axial length of the sliding surface are compared by the plurality of sliding members. A large value can be set. In addition, since the machining allowance on the inner peripheral surface side of the plurality of sliding members is mechanically cut after bonding to the back metal, the phenol resin coating layer can be removed to exhibit good friction characteristics and a plurality of sliding The dimensional accuracy of the member can be made necessary and sufficient. Further, since the plurality of sliding members and the back metal are bonded with the epoxy resin adhesive, the adhesive strength between them can be made necessary and sufficient. Furthermore, since the RB ceramic molded body before the secondary firing is employed as the sliding member, the wear resistance is excellent, the friction coefficient is small, and sufficient toughness can be exhibited. In particular, superior toughness can be exhibited as compared with a conventional case in which the RB ceramic molded body after secondary firing is employed as a sliding member. As a result, it is possible to easily manufacture a large-sized plain bearing structure that is used in a generator or the like and is used at a high load and at a low speed.
Moreover, when the said epoxy resin-type adhesive is a two-component curable type, the adhesive strength of a some sliding member and a back metal can further be improved.

本実施形態に係るすべり軸受構造体の製造方法は、金属製のバックメタルにリング状の複数の摺動部材を装着してなるすべり軸受構造体の製造方法であって、以下に述べる取得工程、接着工程及び切削工程を備えている。
上記摺動部材は、例えば、その内径が８０〜１２０ｍｍであり、その軸方向長さが２０〜６０ｍｍであることができる。
上記摺動部材の曲げ弾性率は、例えば、１５０００ＭＰａ以下（好ましくは、１２０００ＭＰａ以下）であることができる。
上記摺動部材の曲げ強さは、例えば、６０ＭＰａ以上（好ましくは、８０ＭＰａ以上）であることができる。
なお、上記摺動部材の曲げ弾性率及び曲げ強さは、例えば、常温でＪＩＳ Ｋ７１７１に準じて計測されることができる。 The manufacturing method of a sliding bearing structure according to the present embodiment is a manufacturing method of a sliding bearing structure in which a plurality of ring-shaped sliding members are mounted on a metal back metal, and an acquisition step described below, It has a bonding process and a cutting process.
For example, the sliding member may have an inner diameter of 80 to 120 mm and an axial length of 20 to 60 mm.
The bending elastic modulus of the sliding member can be, for example, 15000 MPa or less (preferably 12000 MPa or less).
The bending strength of the sliding member can be, for example, 60 MPa or more (preferably 80 MPa or more).
In addition, the bending elastic modulus and bending strength of the said sliding member can be measured according to JISK7171 at normal temperature, for example.

上記「取得工程」は、ＲＢセラミックス粉末とフェノール樹脂とを混合し射出成形して複数の摺動部材を得る工程である限り、その成形形態、手順等は特に問わない。
上記「ＲＢセラミックス粉末」とは、米糠や麩などの麩糠類を脱脂したものとフェノール樹脂などの熱硬化性樹脂とを混合して不活性ガス中で１次焼成した後、その焼成物を粉砕して得られる粉末である。なお、上記「ＲＢセラミックス」とは、ＲＢセラミックスの改良材であり、ＲＢセラミックスに比べて成形収縮比率が小さなＣＲＢセラミックスも含むものとする。
上記ＲＢセラミックス粉末とフェノール樹脂との混合割合は、重量比で７０〜８０：３０〜２０であることが好ましい。また、上記ＲＢセラミックス粉末とフェノール樹脂との射出成形圧力は、２０〜３０ＭＰａであることが好ましい。また、射出成形時の金型の温度は、１３０〜１７０℃であることが好ましい。 As long as the “acquisition step” is a step in which RB ceramic powder and a phenol resin are mixed and injection molded to obtain a plurality of sliding members, the molding form, procedure, and the like are not particularly limited.
The above “RB ceramic powder” refers to a mixture of degreased rice bran and rice bran and a thermosetting resin such as phenol resin, followed by primary firing in an inert gas, It is a powder obtained by pulverization. The “RB ceramics” is an improvement material for RB ceramics, and includes CRB ceramics having a smaller molding shrinkage ratio than RB ceramics.
The mixing ratio of the RB ceramic powder and the phenol resin is preferably 70 to 80:30 to 20 by weight. Moreover, it is preferable that the injection molding pressure of the said RB ceramic powder and a phenol resin is 20-30 Mpa. Moreover, it is preferable that the temperature of the metal mold | die at the time of injection molding is 130-170 degreeC.

上記「接着工程」は、上記取得工程で得られた複数の摺動部材を、軸方向に接触するようにバックメタルにエポキシ樹脂系接着剤で接着する工程である限り、その接着形態、手順等は特に問わない。
上記エポキシ樹脂系接着剤は、二液硬化型であることが好ましい。この接着剤は、硬化剤とエポキシ樹脂が反応することにより、熱や水分，溶剤などに対しても不溶・不融の３次元不融ポリマー（ネットワークポリマー）を生成し、常安定性樹脂として取り扱い得るためである。
なお、上記接着剤は、円筒状の上記バックメタルの内周面及び／又は上記摺動部材の外周面に塗布される。 As long as the “adhesion step” is a step of adhering the plurality of sliding members obtained in the acquisition step to the back metal with an epoxy resin adhesive so as to contact in the axial direction, the bonding form, procedure, etc. Is not particularly limited.
The epoxy resin adhesive is preferably a two-component curable type. This adhesive reacts with a curing agent and an epoxy resin to produce a three-dimensional infusible polymer (network polymer) that is insoluble and infusible to heat, moisture, and solvents, and is handled as a normally stable resin. To get.
The adhesive is applied to the inner peripheral surface of the cylindrical back metal and / or the outer peripheral surface of the sliding member.

上記「切削工程」は、上記接着工程で接着された複数の摺動部材の内周面側に予め設けられた削り代を機械切削する工程である限り、その切削形態、手順等は特に問わない。
上記取得工程において、射出成形の際に、被射出流動物と金型との温度差により、金型の表面にはフェノール樹脂が先に流れ込み固まることとなる。従って、複数の摺動部材の表面側に主にフェノール樹脂のみからなる被膜層３ａ（図４参照）ができており、機械切削によって被膜層が除去されて良摩擦特性を望むことができる。
上記削り代は、１〜５ｍｍであることが好ましい。 As long as the “cutting step” is a step of mechanically cutting a machining allowance provided in advance on the inner peripheral surface side of the plurality of sliding members bonded in the bonding step, the cutting form, procedure, etc. are not particularly limited. .
In the acquisition process, during injection molding, the phenol resin flows into the mold surface first and hardens due to the temperature difference between the fluid to be injected and the mold. Therefore, the coating layer 3a (see FIG. 4) mainly made of only a phenol resin is formed on the surface side of the plurality of sliding members, and the coating layer is removed by mechanical cutting, and good friction characteristics can be desired.
The shaving allowance is preferably 1 to 5 mm.

以下、図面を用いて実施例により本発明を具体的に説明する。なお、本実施例では、本発明に係る「すべり軸受構造体」として、発電機のガイドベーン用のすべり軸受構造体を例示する。   Hereinafter, the present invention will be specifically described with reference to the drawings. In this embodiment, as a “slide bearing structure” according to the present invention, a slide bearing structure for a guide vane of a generator is illustrated.

（１）すべり軸受構造体の構成
本実施例に係るすべり軸受構造体１は、図１に示すように、金属製（ＣＡＣ３０４）でリング状のバックメタル２の内周面に、リング状の一対の摺動部材３，３を軸方向に密着させた状態で接着されて構成されている。各摺動部材３，３は、その内径Ｄ１が１００ｍｍとされ、その外径Ｄ２が１１０ｍｍとされ、その軸方向長さＬが３７．５ｍｍとされている。
なお、一対の上記すべり軸受構造体１，１を、軸方向に所定間隔をもって離間させて軸受本体５に装着してすべり軸受６が構成される（図２参照）。 (1) Configuration of Slide Bearing Structure As shown in FIG. 1, the slide bearing structure 1 according to the present embodiment is made of a pair of ring-shaped metal (CAC304) on the inner peripheral surface of a ring-shaped back metal 2. The sliding members 3 and 3 are bonded together in the axial direction. Each sliding member 3, 3 has an inner diameter D1 of 100 mm, an outer diameter D2 of 110 mm, and an axial length L of 37.5 mm.
A pair of the slide bearing structures 1 and 1 are mounted on the bearing body 5 at a predetermined interval in the axial direction to constitute a slide bearing 6 (see FIG. 2).

（２）すべり軸受構造体の製造方法
次に、上記すべり軸受構造体１の製造方法について説明する。
先ず、ＣＲＢセラミックス粉末７５重量％とフェノール樹脂２５重量％とを混合した混合物を射出成形機（図示せず）に入れて、金型温度が１５０℃、射出成形圧力が２５ＭＰａの条件で成形して、一対の摺動部材３，３（図３参照）を得る。各摺動部材３は、その内径Ｄ１’が９５ｍｍとされ、その内周面側に２．５ｍｍの削り代Ｓが予め設定さている。この削り代Ｓは、主にフェノール樹脂からなる被膜層３ａを含んでいる（図４参照）。 (2) Manufacturing method of sliding bearing structure Next, the manufacturing method of the said sliding bearing structure 1 is demonstrated.
First, a mixture obtained by mixing 75% by weight of CRB ceramic powder and 25% by weight of phenol resin is put into an injection molding machine (not shown), and molded under conditions of a mold temperature of 150 ° C. and an injection molding pressure of 25 MPa. A pair of sliding members 3 and 3 (see FIG. 3) is obtained. Each sliding member 3 has an inner diameter D1 ′ of 95 mm, and a cutting allowance S of 2.5 mm is set in advance on the inner peripheral surface side. The cutting allowance S includes a coating layer 3a mainly made of a phenol resin (see FIG. 4).

次に、上記射出成形で得られた一対の摺動部材３，３を、それらの各軸端面を接触させてバックメタル２に二液硬化型エポキシ樹脂系接着剤で接着する（図５参照）。次いで、その接着された一対の摺動部材３，３の削り代Ｓを機械切削（例えば、旋盤加工等）して、上記すべり軸受構造体１（図１参照）が得られる。   Next, the pair of sliding members 3 and 3 obtained by the above injection molding are bonded to the back metal 2 with a two-component curable epoxy resin adhesive with their respective shaft end faces in contact (see FIG. 5). . Next, the machining allowance S of the paired sliding members 3 and 3 is mechanically cut (for example, lathe processing or the like) to obtain the sliding bearing structure 1 (see FIG. 1).

（３）実施例の効果
本実施例のすべり軸受構造体の製造方法によると、射出成形で得られた一対の摺動部材３，３を軸方向に密着させてバックメタル２に接着するようにしたので、一対の摺動部材３，３によって摺動面の内径及び軸方向長さを比較的大きな値に設定できる。また、バックメタル２に対する接着後に一対の摺動部材３，３の内周面側の削り代Ｓを機械切削するようにしたので、フェノール樹脂被膜層３ａを除去して良摩擦特性を発揮し得ると共に、一対の摺動部材３，３の寸法精度を必要十分なものとすることができる。また、一対の摺動部材３，３とバックメタル２とを二液硬化型エポキシ樹脂系接着剤で接着するようにしたので、両者の接着強度を必要十分なものとすることができる。さらに、射出成形で得られる２次焼成前のＲＢセラミックス成形体を摺動部材３として採用しているので、耐摩耗性に優れ且つ摩擦係数が小さく更に十分な靭性を発揮させることができる。特に、従来のように２次焼成後のＲＢセラミックス成形体を摺動部材として採用するものに比べて、優れた靭性を発揮させることができる。その結果、発電機等で使用される、高荷重で且つ低速で用いられる大型のＲＢセラミック製のすべり軸受構造体１を簡易に製作することができる。 (3) Effect of Example According to the manufacturing method of the sliding bearing structure of this example, the pair of sliding members 3, 3 obtained by injection molding are brought into close contact in the axial direction so as to adhere to the back metal 2. Therefore, the inner diameter and the axial length of the sliding surface can be set to relatively large values by the pair of sliding members 3 and 3. Further, since the machining margin S on the inner peripheral surface side of the pair of sliding members 3 and 3 is mechanically cut after bonding to the back metal 2, the phenol resin coating layer 3a can be removed to exhibit good friction characteristics. In addition, the dimensional accuracy of the pair of sliding members 3 and 3 can be made necessary and sufficient. Further, since the pair of sliding members 3 and 3 and the back metal 2 are bonded with the two-component curable epoxy resin adhesive, the adhesive strength between them can be made necessary and sufficient. Furthermore, since the RB ceramic molded body before secondary firing obtained by injection molding is adopted as the sliding member 3, it is excellent in wear resistance, has a small friction coefficient, and can exhibit sufficient toughness. In particular, superior toughness can be exhibited as compared with a conventional case in which the RB ceramic molded body after secondary firing is employed as a sliding member. As a result, a large RB ceramic plain bearing structure 1 used in a generator or the like and used at a high load and a low speed can be easily manufactured.

次に、図６を用いて、２次焼成前及び２次焼成後のＣＲＢセラミックス成形体の各試験結果について説明する。
先ず、すべり摩擦試験において、２次焼成前の成形体の摩擦係数は０．１４〜０．２５である。また、２次焼成後の成形体の摩擦係数は０．０９〜０．１４である。従って、２次焼成前及び２次焼成後の成形体は摩擦係数が小さなことがわかる。なお、上記すべり摩擦試験は、上記成形体と相手材（Ｓ４５Ｃリング）とを、常温無潤滑状態において圧力が０．９８ＭＰａで且つすべり速度が０．５ｍ／ｓで行ったものである。 Next, each test result of the CRB ceramic molded body before and after the secondary firing will be described with reference to FIG.
First, in the sliding friction test, the coefficient of friction of the compact before secondary firing is 0.14 to 0.25. Moreover, the coefficient of friction of the molded body after the secondary firing is 0.09 to 0.14. Therefore, it can be seen that the compact before and after the secondary firing has a small friction coefficient. Note that the sliding friction test was performed by using the molded body and the counterpart material (S45C ring) at a normal temperature and no lubrication state at a pressure of 0.98 MPa and a sliding speed of 0.5 m / s.

また、一般特性において、２次焼成前の成形体では、成形収縮率が０．３３％であり、曲げ強さが８８ＭＰａであり、曲げ弾性率が１００００ＭＰａであり、引張強さが４２ＭＰａであり、シャルピー衝撃強さが１．７ｋＪ／ｍ２であり、ロックウェル硬さが１１３であり、比重が１．５４である。これに対して、２次焼成後の成形体では、曲げ強さが７４ＭＰａであり、曲げ弾性率が１６８００ＭＰａであり、引張強さが２３ＭＰａであり、シャルピー衝撃強さが０．９ｋＪ／ｍ２であり、ロックウェル硬さが１０８であり、比重が１．２１である。従って、２次焼成前の成形体は、２次焼成後の成形体に比べて、各機械的強さが高いにもかかわらず弾性変形し易く靭性に優れることがわかる。
なお、上記曲げ強度及び曲げ弾性率は、ＪＩＳ Ｋ７１７１に準じて、島津製作所社製「ＡＧ５０００」を用いて、常温の雰囲気下で試験片（幅１０ｍｍ、長さ９０ｍｍ、厚さ４ｍｍ）に曲げ試験を施して計測された。 Further, in the general characteristics, the molded body before secondary firing has a molding shrinkage of 0.33%, a bending strength of 88 MPa, a bending elastic modulus of 10,000 MPa, and a tensile strength of 42 MPa, The Charpy impact strength is 1.7 kJ / m 2 , the Rockwell hardness is 113, and the specific gravity is 1.54. On the other hand, the molded body after the secondary firing has a bending strength of 74 MPa, a flexural modulus of 16800 MPa, a tensile strength of 23 MPa, and a Charpy impact strength of 0.9 kJ / m 2 . Yes, the Rockwell hardness is 108 and the specific gravity is 1.21. Therefore, it can be seen that the molded body before the secondary firing is easily elastically deformed and excellent in toughness, although the mechanical strength is higher than the molded body after the secondary firing.
The bending strength and the flexural modulus are in accordance with JIS K7171, using “AG5000” manufactured by Shimadzu Corporation, in a test piece (width 10 mm, length 90 mm, thickness 4 mm) in a normal temperature atmosphere. And measured.

尚、本発明においては、上記実施例に限られず、目的、用途に応じて本発明の範囲内で種々変更した実施例とすることができる。   In the present invention, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention depending on the purpose and application.

ＲＢセラミックス製のすべり軸受構造体を製作する技術として広く利用される。   It is widely used as a technique for manufacturing a sliding bearing structure made of RB ceramics.

本実施例に係るすべり軸受構造体の縦断面図である。It is a longitudinal cross-sectional view of the sliding bearing structure which concerns on a present Example. 本実施例に係るすべり軸受の縦断面図である。It is a longitudinal cross-sectional view of the slide bearing which concerns on a present Example. 射出成形で得られた摺動部材の縦断面図である。It is a longitudinal cross-sectional view of the sliding member obtained by injection molding. 図３の要部拡大模式図である。It is a principal part enlarged schematic diagram of FIG. 機械切削前のすべり軸受構造体の縦断面図である。It is a longitudinal cross-sectional view of the plain bearing structure before machine cutting. ２次焼成前及び２次焼成後のＣＲＢセラミックス成形体の各試験結果を説明するための説明図である。It is explanatory drawing for demonstrating each test result of the CRB ceramic molded object before secondary baking and after secondary baking.

符号の説明Explanation of symbols

１；すべり軸受構造体、２；バックメタル、３；摺動部材。   1; sliding bearing structure, 2; back metal, 3; sliding member.

Claims (2)

金属製のバックメタルにリング状の複数の摺動部材を装着してなるすべり軸受構造体の製造方法であって、
ＲＢセラミックス粉末とフェノール樹脂とを混合し射出成形して複数の前記摺動部材を得る工程と、
その得られた複数の前記摺動部材を、軸方向に接触するように前記バックメタルにエポキシ樹脂系接着剤で接着する工程と、
その接着された複数の前記摺動部材の内周面側に予め設けられた削り代を機械切削する工程と、を備えることを特徴とするすべり軸受構造体の製造方法。 A method of manufacturing a sliding bearing structure in which a plurality of ring-shaped sliding members are mounted on a metal back metal,
A step of mixing RB ceramic powder and phenolic resin and injection molding to obtain a plurality of the sliding members;
Bonding the obtained plurality of sliding members to the back metal with an epoxy resin adhesive so as to contact in the axial direction;
And a step of mechanically cutting a machining allowance provided in advance on the inner peripheral surface side of the plurality of bonded sliding members. A method for manufacturing a sliding bearing structure, comprising: 前記エポキシ樹脂系接着剤は、二液硬化型である請求項１記載のすべり軸受構造体の製造方法。   The method for manufacturing a sliding bearing structure according to claim 1, wherein the epoxy resin adhesive is a two-component curing type.
JP2006350510A 2006-12-26 2006-12-26 Manufacturing method of sliding bearing structure Active JP4913582B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006350510A JP4913582B2 (en) 2006-12-26 2006-12-26 Manufacturing method of sliding bearing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006350510A JP4913582B2 (en) 2006-12-26 2006-12-26 Manufacturing method of sliding bearing structure

Publications (2)

Publication Number Publication Date
JP2008163955A true JP2008163955A (en) 2008-07-17
JP4913582B2 JP4913582B2 (en) 2012-04-11

Family

ID=39693714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006350510A Active JP4913582B2 (en) 2006-12-26 2006-12-26 Manufacturing method of sliding bearing structure

Country Status (1)

Country Link
JP (1) JP4913582B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101147818B1 (en) 2010-11-29 2012-05-21 주식회사 맥테크 The manufacturing method of the journal thrust bearing using a porous ceramic, and the journal thrust bearing
JP2013007343A (en) * 2011-06-24 2013-01-10 Shikoku Electric Power Co Inc Bearing for water-wheel generator
JP2013044417A (en) * 2011-08-25 2013-03-04 Toribotex Co Ltd Sliding bearing structure and method for manufacturing the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6269621A (en) * 1985-09-24 1987-03-30 Anelva Corp Plasma processor
JP2003336592A (en) * 2002-03-13 2003-11-28 Minebea Co Ltd Motor-driven submergible pump
WO2005017045A1 (en) * 2003-08-13 2005-02-24 Sunstar Giken Kabushiki Kaisha Two-part curable composition
JP2005155655A (en) * 2003-11-12 2005-06-16 Hitachi Powdered Metals Co Ltd Sliding bearing manufacturing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6269621A (en) * 1985-09-24 1987-03-30 Anelva Corp Plasma processor
JP2003336592A (en) * 2002-03-13 2003-11-28 Minebea Co Ltd Motor-driven submergible pump
WO2005017045A1 (en) * 2003-08-13 2005-02-24 Sunstar Giken Kabushiki Kaisha Two-part curable composition
JP2005155655A (en) * 2003-11-12 2005-06-16 Hitachi Powdered Metals Co Ltd Sliding bearing manufacturing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101147818B1 (en) 2010-11-29 2012-05-21 주식회사 맥테크 The manufacturing method of the journal thrust bearing using a porous ceramic, and the journal thrust bearing
JP2013007343A (en) * 2011-06-24 2013-01-10 Shikoku Electric Power Co Inc Bearing for water-wheel generator
JP2013044417A (en) * 2011-08-25 2013-03-04 Toribotex Co Ltd Sliding bearing structure and method for manufacturing the same

Also Published As

Publication number Publication date
JP4913582B2 (en) 2012-04-11

Similar Documents

Publication Publication Date Title
JP6209229B2 (en) UV curable resin composition
JP4803294B2 (en) Synchronizer ring
JP6185947B2 (en) Ultraviolet curable resin composition, sliding member, and manufacturing method of sliding member
WO2007058351A1 (en) Resin retainer and rolling bearing
CN101178102A (en) Wet-type copper based powder metallurgy friction wafer and manufacturing method
CN101671536B (en) Carbon fiber friction material and application thereof for manufacturing friction layer of vehicle steel synchronizer tooth ring
CN101555906B (en) Light and thin type self-lubricating bearing and manufacturing method thereof
JP4913582B2 (en) Manufacturing method of sliding bearing structure
KR102375656B1 (en) Method for manufacturing sintered component and sintered component
JP3682065B2 (en) Friction resistant synchronous ring
JP5765490B2 (en) Sliding member and manufacturing method of sliding member
CN102588460A (en) Synchronous ring for synchronizer and method for manufacturing synchronous ring
JP6093737B2 (en) Constant velocity joint and manufacturing method thereof
KR100502219B1 (en) Method of forming by cold worked powdered metal forged parts
JP2754769B2 (en) Manufacturing method of bearing with dynamic pressure groove
JP2856861B2 (en) Method of manufacturing sliding member embedded with solid lubricant
JP2007309369A (en) Shaft for cvt, and its manufacturing method
JP2014001427A (en) Method of manufacturing sintered component
US11378125B2 (en) Valve and a manufacturing method of a bearing surface for a valve
KR100789994B1 (en) Bush type sliding bearing comprising of sintered segments with sloped joining surface
CN205745867U (en) A kind of plastic coated composite steel pipe
CN104791382A (en) Integrated metal-based macromolecular composite self-lubrication bearing and manufacturing method thereof
CN106392078A (en) Method for producing a synchronizing ring and the synchronizing ring
JP2017180737A (en) Cage for rolling bearing and rolling bearing
JP2006057138A (en) Composite material and sliding member obtained by using the composite material

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20091218

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101209

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110729

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110802

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110929

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120110

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120119

R150 Certificate of patent or registration of utility model

Ref document number: 4913582

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150127

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250