JP2859888B2 - Double-layer sintered friction material - Google Patents
Double-layer sintered friction materialInfo
- Publication number
- JP2859888B2 JP2859888B2 JP1103012A JP10301289A JP2859888B2 JP 2859888 B2 JP2859888 B2 JP 2859888B2 JP 1103012 A JP1103012 A JP 1103012A JP 10301289 A JP10301289 A JP 10301289A JP 2859888 B2 JP2859888 B2 JP 2859888B2
- Authority
- JP
- Japan
- Prior art keywords
- friction material
- layer
- metal plate
- inner layer
- sintered friction
- 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.)
- Expired - Lifetime
Links
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- Braking Arrangements (AREA)
- Sealing Material Composition (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、摩擦摩耗に耐える優れた摺動材を金属板へ
強固に接着することにより安全性を高めた二層構造摩擦
材に関するものである。Description: TECHNICAL FIELD The present invention relates to a two-layer friction material having improved safety by firmly bonding a sliding material excellent in friction and wear to a metal plate. is there.
（従来の技術） ブレーキ用摩擦材は、繊維成分，充填材等を樹脂で結
合させた有機系摺動材と、金属または合金で結合させた
メタリック系摺動材とが利用されている。特に、高負荷
で高温となる高速車両のブレーキ用摩擦材は、メタリッ
ク系摺動材が主に使用されている。(Prior Art) As a friction material for a brake, an organic sliding material in which a fiber component, a filler and the like are bonded by a resin, and a metallic sliding material in which a metal or an alloy is bonded are used. In particular, as a friction material for a brake of a high-speed vehicle which becomes high temperature under a high load, a metallic sliding material is mainly used.
ブレーキ用摩擦材は、一般に、Cu基メタリック系摺動
材を裏板と呼ばれる金属板に接合する場合には、金属板
にあらかじめCu鍍金を行い、摺動材の焼結と同時に摺動
材の金属板を拡散接合する方法により作製されている。
この方法で得られるブレーキ用摩擦材は、摺動材と金属
板とが強固に接着し、簡便であるという長所がある。Generally, when joining a Cu-based metallic sliding material to a metal plate called a back plate, the friction material for the brake is plated with Cu in advance on the metal plate, and the sliding material is sintered at the same time as the sintering of the sliding material. It is manufactured by a method of diffusion bonding a metal plate.
The friction material for a brake obtained by this method has an advantage that the sliding material and the metal plate are firmly adhered to each other and are simple.
（発明が解決しようとする課題） しかし、近年になって、ブレーキ用摩擦材の使用条件
は、内燃機関の高性能化、車両の大型化に伴い過酷とな
ってきている。このために、ブレーキ用摩擦材はFe,Ni
等の高融点金属の添加量を多くすること、潤滑成分とし
ての黒鉛の添加量増加および粗粒とすること等の対策が
必要となっている。この結果、ブレーキ用摩擦材は、金
属板と摺動材との拡散不足および両者の接着面積の減少
により、金属板と摺動材との接着強度の低下という問題
が生じている。これらの問題は、リベット止め等の他の
強固な機械的接着方法を用いることにより解消するが、
工程上コストアップになるという欠点がある。(Problems to be Solved by the Invention) However, in recent years, the conditions for using the friction material for brakes have become severer with higher performance of internal combustion engines and larger vehicles. For this reason, the friction material for brakes is Fe, Ni
It is necessary to take measures such as increasing the amount of the high-melting-point metal added, such as increasing the amount of graphite added as a lubricating component, and forming coarse particles. As a result, the friction material for the brake has a problem in that the bonding strength between the metal plate and the sliding material is reduced due to insufficient diffusion between the metal plate and the sliding material and a decrease in the bonding area between the two. These problems are solved by using other strong mechanical bonding methods such as riveting,
There is a disadvantage that the cost is increased in the process.
本発明は、摩擦摩耗にすぐれた摺動材を、金属板に強
固に接着し、過酷な使用条件に適合し、かつ安全性向上
を計ったブレーキ用摩擦材として適する二層構造焼結摩
擦材の提供を目的とするものである。The present invention relates to a two-layered sintered friction material which is suitable for a friction material for brakes which adheres a sliding material excellent in frictional wear to a metal plate, is suitable for severe use conditions, and has improved safety. The purpose is to provide.
（課題を解決するための手段） 本発明の焼結摩擦材料は、金属板に接着される焼結摩
擦材であって、該焼結摩擦材は、摺動面を構成するメタ
リック系摺動材でなる外層と、該金属板と該外層とを接
着させる内層とからなり、該外層が0.35以上の動摩擦係
数を有し、かつ該内層とは成分が異なり、該内層の成分
がSnおよびZnの１種または２種:5〜15重量％と、SiO2,A
l2O3等のモース硬度４以上の金属酸化物および黒鉛より
選ばれた１種または２種以上:5〜15重量％と、残部が不
純物を除いたCuを含有している二層構造焼結摩擦材を特
徴としているものである。(Means for Solving the Problems) The sintered friction material of the present invention is a sintered friction material bonded to a metal plate, and the sintered friction material is a metallic sliding material constituting a sliding surface. And an inner layer for bonding the metal plate and the outer layer, wherein the outer layer has a kinetic friction coefficient of 0.35 or more, and has a different component from that of the inner layer, and the components of the inner layer are Sn and Zn. 1 or 2 types: 5 to 15% by weight and SiO 2 , A
One or more selected from metal oxides having a Mohs hardness of 4 or more, such as l 2 O 3 , and graphite: 5 to 15% by weight, with the remainder being Cu in a two-layer structure containing impurities free of impurities. It is characterized by a binding friction material.
この焼結摩擦材における内層は、摺動材でなる外層が
摩耗摩滅して、内層にまでおよんでも急激に摩擦係数が
低下することのないように硬質粒子および黒鉛を添加す
る等により摺動材としての性能と（具体的には、摺動材
である外層と同等の動摩擦係数を有し）、接着材として
の性能（具体的には、50kgf/cm2以上の接着剪断強度）
を合せ持っているものである。この内層の成分はSnおよ
びZnの１種または２種:5〜15重量％と、SiO2,Al2O3等の
モース硬度４以上の金属酸化物および黒鉛より選ばれた
１種または２種以上:5〜15重量％と、残部が不純物を除
いたCuを含有しており、かつ厚さが0.2〜1mmであること
が好ましい。この内層の成分は、これら以外でも本発明
の効果を得ることができるが、これらの成分のものは安
価となること、および製造が容易であることから特に好
ましい。The inner layer of the sintered friction material is formed by adding hard particles and graphite so that the outer layer of the sliding material does not wear and wear and the friction coefficient does not suddenly decrease even to the inner layer. Performance (specifically, it has the same dynamic friction coefficient as the outer layer as a sliding material), and performance as an adhesive (specifically, adhesive shear strength of 50 kgf / cm 2 or more)
It is something that has. The component of the inner layer is one or two of Sn and Zn: 5 to 15% by weight, and one or two selected from metal oxides having a Mohs hardness of 4 or more such as SiO 2 and Al 2 O 3 and graphite. Above: 5 to 15% by weight, the balance preferably contains Cu excluding impurities, and the thickness is preferably 0.2 to 1 mm. Other components of the inner layer can also provide the effects of the present invention, but those components are particularly preferable because they are inexpensive and easy to manufacture.
この内層は、硬質粒子，黒鉛の添加量が多過ぎると金
属板との接着面積が減少し、接着強度の低下をまねくこ
と、また前記成分範囲を外れるとブレーキ用摩擦材とし
ての性能が不十分になること、さらに前記厚さが薄過ぎ
ると金属板との接着強度が不十分となること、逆に厚す
ぎると価格，重量の面で無駄となる。If the added amount of the hard particles and graphite is too large, the inner layer decreases the bonding area with the metal plate, resulting in lowering of the bonding strength, and if it is out of the above component range, the performance as a friction material for brake is insufficient. If the thickness is too small, the adhesive strength to the metal plate will be insufficient. Conversely, if the thickness is too large, cost and weight will be wasted.
この焼結摩擦材における外層は、動摩擦係数が0.35以
上であることが好ましく、この外層と内層と金属板とが
一体となった焼結摩擦材は、接着の剪断強度が50kgf/cm
2以上であることが好ましいことである。The outer layer of the sintered friction material preferably has a dynamic friction coefficient of 0.35 or more, and the sintered friction material in which the outer layer, the inner layer, and the metal plate are integrated has a shear strength of bonding of 50 kgf / cm.
It is preferable that the number be 2 or more.
この本発明の焼結摩擦材は、摺動材でなる外層と、摺
動材と接着剤との性能を合せ持つ内層とを、粉末から二
層状にプレス成形する等同時成形して作製することが可
能であること、またこれらを金属板とともに同時に焼結
して相互に接着することにより作製することができる。The sintered friction material of the present invention is produced by simultaneously forming an outer layer made of a sliding material and an inner layer having the performance of a sliding material and an adhesive in a two-layer press molding from powder. It can be manufactured by simultaneously sintering these together with a metal plate and bonding them together.
（実施例） 実施例１ 外層を形成するための摺動材として、Cu:69重量％、S
n:7重量％,SiO2:5重量％、黒鉛:11重量％、Pb:8重量％
よりなる粉末を、成形ダイス、下パンチ、上パンチより
なる粉末成形装置に充填して予備成形し、その後上パン
チを上昇させて、キャビティ内に内層を形成するための
粉末として第１表に示す本発明品１〜７（組成の数字は
重量％）の組成成分でなる混合粉末をそれぞれ充填し、
上パンチにより再度加圧して外層と内層を形成するため
の二層構造の成形体を一体成形した。(Example) Example 1 As a sliding material for forming an outer layer, Cu: 69% by weight, S
n: 7 wt%, SiO 2: 5 wt%, graphite: 11% by weight, Pb: 8 wt%
The powder is filled in a powder molding apparatus consisting of a molding die, a lower punch, and an upper punch, and is preformed. Then, the upper punch is raised, and is shown in Table 1 as a powder for forming an inner layer in the cavity. Each of the mixed powders of the present invention products 1 to 7 (the composition numbers are% by weight) are filled,
By pressing again with the upper punch, a molded article having a two-layer structure for forming an outer layer and an inner layer was integrally molded.
このそれぞれの成形体を用いて、金属板（鋼板）に内
層が形成されるそれぞれの成形体側を接触させて750℃
で60分間、還元雰囲気中で焼結し、外層と内層と金属板
とが一体化された二層構造の焼結摩擦材でなる本発明品
１〜７を得た。Using each of these compacts, contact each compact side where the inner layer is formed on the metal plate (steel plate) to 750 ° C.
For 60 minutes in a reducing atmosphere to obtain products 1 to 7 of the present invention, which are sintered friction materials having a two-layer structure in which an outer layer, an inner layer, and a metal plate are integrated.
比較として、内層のみ除いて、その他は上述の本発明
品と同様に作製して外層と金属板とでなる比較品１を得
た。As a comparison, a comparative product 1 comprising an outer layer and a metal plate was prepared in the same manner as the above-described product of the present invention except for the inner layer.
こうして得た本発明品１〜７と比較品１のそれぞれの
接着の剪断強度を測定して、その結果を第１表に併記し
た。The shear strength of each of the thus obtained inventive products 1 to 7 and comparative product 1 was measured, and the results are shown in Table 1.
実施例２ 金属板と外層とを接着するための内層を構成するため
の成分および内層の厚さを第２表に示した以外は、ほぼ
実施例１と同様に処理して本発明の焼結摩擦材８〜18を
得た。 Example 2 Except that the components for forming the inner layer for bonding the metal plate and the outer layer and the thickness of the inner layer are shown in Table 2, the treatment was performed in substantially the same manner as in Example 1 and the sintering of the present invention was performed. Friction materials 8 to 18 were obtained.
これらの本発明の焼結摩擦材８〜18を用いて、JASO C
406−87乗用車ブレーキ装置ダイナモメータ試験方法の
第１効力試験により、それぞれの動摩擦係数を測定し、
その結果を第２表に併記した。また、本発明の焼結摩擦
材８〜18を用いて、JASO C437−84ブレーキ摩擦材の接
着強度試験方法により、それぞれの剪断強度を測定し、
その結果を第２表に併記した。Using these sintered friction materials 8 to 18 of the present invention, JASO C
406-87 Passenger car brake device By the first efficacy test of the dynamometer test method, each dynamic friction coefficient was measured,
The results are shown in Table 2. Further, using the sintered friction materials 8 to 18 of the present invention, the respective shear strengths were measured according to the adhesion strength test method of JASO C437-84 brake friction materials,
The results are shown in Table 2.
（発明の効果） 以上、本発明の焼結摩擦材は、金属板に高摩擦係数を
有する摺動材を直接接合した比較品に対比して、金属板
と摺動材の外層との間に摺動材および接着材の性能を兼
ね備えた内層を介在していることから、金属板と摺動材
との剪断強度が顕著にすぐれていること、摺動材でなる
外層が摩耗摩滅した場合にも摺動材を兼ねる内層により
車両の安全性が顕著に高くなるという効果があり、工業
的価値が大きい。 (Effects of the Invention) As described above, the sintered friction material of the present invention has a larger gap between the metal plate and the outer layer of the sliding material than a comparative product in which a sliding material having a high friction coefficient is directly joined to a metal plate. The presence of an inner layer that combines the performance of a sliding material and an adhesive material makes it possible to ensure that the shear strength between the metal plate and the sliding material is remarkably good and that the outer layer made of the sliding material is worn and worn. In addition, the inner layer also serving as a sliding material has an effect that the safety of the vehicle is remarkably increased, and is of great industrial value.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−96226（ＪＰ，Ａ) 特開 昭59−176327（ＪＰ，Ａ) 特開 昭55−107702（ＪＰ，Ａ) 特開 昭54−62107（ＪＰ，Ａ) 特開 昭58−147481（ＪＰ，Ａ) 特開 昭62−93527（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) F16D 69/00 F16D 69/02 F16D 69/04 B22F 7/00──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-96226 (JP, A) JP-A-59-176327 (JP, A) JP-A-55-107702 (JP, A) JP-A-54-176 62107 (JP, A) JP-A-58-147481 (JP, A) JP-A-62-93527 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) F16D 69/00 F16D 69 / 02 F16D 69/04 B22F 7/00
Claims (3)
該焼結摩擦材は、摺動面を構成するメタリック系摺動材
でなる外層と、該金属板と該外層とを接着させる内層と
からなり、該外層が0.35以上の動摩擦係数を有し、かつ
該内層とは成分が異なり、該内層の成分がSnおよびZnの
１種または２種:5〜15重量％と、SiO2,Al2O3等のモース
硬度４以上の金属酸化物および黒鉛より選ばれた１種ま
たは２種以上:5〜15重量％と、残部が不純物を除いたCu
を含有していることを特徴とする二層構造焼結摩擦材。1. A sintered friction material bonded to a metal plate,
The sintered friction material comprises an outer layer made of a metallic sliding material constituting a sliding surface, and an inner layer for bonding the metal plate and the outer layer, and the outer layer has a dynamic friction coefficient of 0.35 or more, and different components from the inner layer, one component of the inner layer of Sn and Zn or two: 5 to 15% by weight and, SiO 2, Al 2 O 3, etc. Mohs hardness of 4 or more metal oxides and graphite One or more selected from: 5 to 15% by weight, with the balance being Cu excluding impurities
A sintered friction material having a two-layer structure characterized by containing:
度が50kgf/cm2以上であることを特徴とする請求項１に
記載の二層構造焼結摩擦材。2. The two-layer sintered friction material according to claim 1, wherein the metal plate and the sintered friction material have a shear strength of 50 kgf / cm 2 or more.
であり、上記内層は、層厚さが0.2〜1mmであることを特
徴とする請求項１または２に記載の二層構造摩擦材。3. The two-layer friction material according to claim 1, wherein the outer layer is a metallic sliding material containing Cu, and the inner layer has a thickness of 0.2 to 1 mm. Wood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1103012A JP2859888B2 (en) | 1989-04-21 | 1989-04-21 | Double-layer sintered friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1103012A JP2859888B2 (en) | 1989-04-21 | 1989-04-21 | Double-layer sintered friction material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02283922A JPH02283922A (en) | 1990-11-21 |
| JP2859888B2 true JP2859888B2 (en) | 1999-02-24 |
Family
ID=14342732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1103012A Expired - Lifetime JP2859888B2 (en) | 1989-04-21 | 1989-04-21 | Double-layer sintered friction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2859888B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094916B (en) * | 2010-12-28 | 2012-10-03 | 杭州前进齿轮箱集团股份有限公司 | Method for manufacturing nano enhanced wet copper-based friction plate |
| JP2016023349A (en) * | 2014-07-23 | 2016-02-08 | Ntn株式会社 | Sinter machine component |
| CN109930021B (en) * | 2017-12-19 | 2021-01-05 | 有研工程技术研究院有限公司 | Copper-based silicon dioxide composite material and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55107702A (en) * | 1979-02-09 | 1980-08-19 | Akebono Brake Ind Co Ltd | Pressureless bonding method of friction material and adhesive agent used for this |
| JPS59176327A (en) * | 1983-03-28 | 1984-10-05 | Toyota Motor Corp | Production of friction material for disc brake |
| JPS6196226A (en) * | 1984-10-16 | 1986-05-14 | Toyota Motor Corp | Sintered friction board |
-
1989
- 1989-04-21 JP JP1103012A patent/JP2859888B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02283922A (en) | 1990-11-21 |
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