JPH1078065A - Brake pad excellent in heat insulation and adhesive property - Google Patents
Brake pad excellent in heat insulation and adhesive propertyInfo
- Publication number
- JPH1078065A JPH1078065A JP24932396A JP24932396A JPH1078065A JP H1078065 A JPH1078065 A JP H1078065A JP 24932396 A JP24932396 A JP 24932396A JP 24932396 A JP24932396 A JP 24932396A JP H1078065 A JPH1078065 A JP H1078065A
- Authority
- JP
- Japan
- Prior art keywords
- intermediate layer
- forming
- friction
- brake pad
- cavity
- 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
Landscapes
- Braking Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、断熱性および接着
性にすぐれたブレーキパッドおよびその製造方法に関
し、特に摩擦作動時に発生する熱を断熱し、裏板と摩擦
板との接着性にすぐれたブレーキ鳴きの抑制効果の高い
断熱性および接着性にすぐれたブレーキパッドおよびそ
の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake pad having excellent heat insulating properties and adhesiveness, and a method of manufacturing the same. More particularly, the present invention insulates heat generated during frictional operation and has excellent adhesiveness between a back plate and a friction plate. TECHNICAL FIELD The present invention relates to a brake pad having a high heat insulating property and an excellent adhesive property, which has a high brake noise suppressing effect, and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】裏板と摩擦板で構成されたブレ−キパッ
ドは、摩擦板がフィラ−を樹脂またはゴムなどの有機物
質のマトリックスで結合させた有機質摩擦材料で形成さ
れている場合と、フィラ−を金属，合金または金属間化
合物のマトリックスで結合させた金属系焼結摩擦材料で
形成されている場合とに大別される。2. Description of the Related Art A brake pad composed of a back plate and a friction plate has two types: a friction plate formed of an organic friction material in which a filler is bonded by a matrix of an organic substance such as resin or rubber; -Is formed of a metal-based sintered friction material which is bonded with a matrix of a metal, an alloy or an intermetallic compound.
【０００３】これらの従来のブレーキパッドのうち、金
属系焼結摩擦材料でなる摩擦板の場合は、ブレーキ作動
時に発生する摩擦熱がブレーキシステム全体に伝わり、
キャリバーおよびブレーキオイルを劣化させるという問
題がある。また、この摩擦熱がさらに多量になると、ブ
レーキオイルが沸騰して気泡となり、ペーパーロックと
いう現象を生じ、ブレーキ操作不能の状態を招くという
問題がある。[0003] Of these conventional brake pads, in the case of a friction plate made of a metal-based sintered friction material, frictional heat generated during braking is transmitted to the entire brake system,
There is a problem of deteriorating the caliber and brake oil. Further, when the frictional heat is further increased, the brake oil boils and becomes bubbles, causing a phenomenon of paper lock, which causes a state in which the brake cannot be operated.
【０００４】これらの問題を解決しょうとして多数の提
案が行われており、その代表的なものとして、特開昭５
７−１５４５３６号公報，特開昭６２−３７５３０号公
報および特開昭６２−２０９２３５号公報がある。A number of proposals have been made to solve these problems.
There are JP-A-7-154536, JP-A-62-37530 and JP-A-62-209235.
【０００５】[0005]
【発明が解決しようとする課題】ブレーキパッドに関す
る先行技術としての特開昭５７−１５４５３６号公報に
は、裏板がライニングに接着される面に凹溝を刻設し、
ライニングの裏板とのモールド成形によって凹溝が充填
埋設されるように構成された摩擦パッドについて開示さ
れている。同公報に開示の摩擦パッドは、その他、裏板
に多数の貫通孔を穿設し、この貫通孔のライニング材を
埋設したものと同様にライニングパッドと裏板との接着
強度，剪断強度を向上させようとしたものであるが、作
動時に発生する摩擦熱により容易にブレーキオイルの沸
騰、およびペーパーロック現象を引き起こし、その結果
鳴きの発生が高まるという問題がある。Japanese Patent Laying-Open No. 57-154536, which is a prior art relating to a brake pad, discloses that a groove is formed on a surface of a back plate to be bonded to a lining.
A friction pad configured to fill and bury a concave groove by molding with a lining back plate is disclosed. The friction pad disclosed in the publication also has a number of through holes formed in the back plate, and improves the adhesive strength and shear strength between the lining pad and the back plate in the same manner as the one in which the lining material of this through hole is embedded. However, there is a problem that the frictional heat generated during operation easily causes the boiling of the brake oil and the paper lock phenomenon, resulting in an increase in squealing.
【０００６】また、特開昭６２−３７５３０号公報に
は、ライニングパッドを裏板に溶着し、ライニングパッ
ドの溶着面に凹溝を形成し、凹溝とライニングパッドの
摺接面から内部に向かって形成したスリットとを連通さ
せた摩擦パッドについて開示されている。同公報に開示
の摩擦パッドは、多数に分断された状態のライニングパ
ッドからなっているために残留応力が大幅に減少し、耐
熱強度が向上しているが、断熱性についての配慮が行わ
れていないために、作動時に発生する摩擦熱により容易
にブレーキオイルの沸騰、およびペーパーロック現象を
引き起こし、その結果鳴きの発生が高まるという問題が
ある。Japanese Patent Application Laid-Open No. 62-37530 discloses that a lining pad is welded to a back plate, a groove is formed in a welding surface of the lining pad, and a groove is formed from a sliding contact surface between the groove and the lining pad. Discloses a friction pad in which a slit formed in communication with the friction pad is communicated. The friction pad disclosed in the publication has a large number of divided lining pads, so that the residual stress is greatly reduced and the heat resistance is improved, but consideration is given to heat insulation. Therefore, there is a problem that the frictional heat generated during operation easily causes the boiling of the brake oil and the paper lock phenomenon, and as a result, the occurrence of squeal increases.
【０００７】さらに、特開昭６２−２０９２３５号公報
には、プレス金型に形成された高さ数ｍｍ以下の突条に
より、ディスク摺接面に凹形の溝を生じさせるディスク
ブレーキパッドの製造方法について開示されている。同
公報に開示の製造方法により得られるブレーキパッド
は、摺接面に形成された凹形の溝によりフェ−ド現象の
防止効果が高まってはいるが、断熱性についての配慮が
行われていないために、作動時に発生する摩擦熱により
容易にブレーキオイルの沸騰、およびペーパーロック現
象を引き起こし、その結果鳴きの発生が高まるという問
題がある。Further, Japanese Patent Application Laid-Open No. Sho 62-209235 discloses the production of a disc brake pad in which a concave groove is formed on a disk sliding contact surface by a ridge having a height of several mm or less formed in a press die. A method is disclosed. In the brake pad obtained by the manufacturing method disclosed in the publication, the effect of preventing the fade phenomenon is enhanced by the concave groove formed in the sliding contact surface, but no consideration is given to heat insulation. For this reason, there is a problem that the friction heat generated during operation easily causes the boiling of the brake oil and the paper lock phenomenon, and as a result, the occurrence of squeal increases.
【０００８】本発明は、上述の問題点を解決したもの
で、具体的には、裏板と摩擦板との間に接着強度を高め
るためのメッキ層と中間層とを介在させて、かつメッキ
層を含めた裏板の固着境界部の近傍および／または中間
層に断熱効果を高める複数の空洞部を形成した断熱性に
すぐれたブレーキパッドの提供を目的とするものであ
る。The present invention has solved the above-mentioned problems. More specifically, the present invention has a plating layer and an intermediate layer interposed between a back plate and a friction plate, and a plating layer is provided between the back plate and the friction plate. It is an object of the present invention to provide a brake pad excellent in heat insulation in which a plurality of cavities for enhancing a heat insulating effect are formed in the vicinity of a fixed boundary portion of a back plate including a layer and / or in an intermediate layer.
【０００９】[0009]
【課題を解決するための手段】本発明者は、ブレーキパ
ッドの改良として、材料温度が約５００℃にも達する
ような高負荷使用条件においても摩擦係数の低下や変動
が少ないこと、耐摩耗性を低下させずに、より断熱性
および生産性を高めること、摩擦作動時の鳴きをより
小さくすること、という要件について長年に亘り検討
し、これらのうち、製造コストを高めず、かつ生産性を
低下させないようなブレーキパッドの構造という前提の
もとで、特に断熱性について着目し、空洞部による空冷
効果により鳴きの低減を高めることができること、ブレ
ーキパッドとしての安定な摩擦特性（特に高温での摩擦
特性）を保持できるという知見を得て、本発明を完成さ
せるに至ったものである。SUMMARY OF THE INVENTION The inventor of the present invention has proposed an improvement in a brake pad, in which the friction coefficient does not decrease or fluctuate even under a high-load use condition where the material temperature reaches about 500 ° C., and the wear resistance is improved. For many years, the requirements of higher insulation and higher productivity without lowering the noise and lowering the squeal during frictional operation have been studied over the years. Based on the premise of a brake pad structure that does not lower it, paying special attention to heat insulation, it is possible to enhance the reduction of squeal by the air cooling effect of the cavity, and the stable friction characteristics of the brake pad (particularly at high temperatures) It has been found that the present invention is able to maintain the frictional characteristics, and the present invention has been completed.
【００１０】すなわち、本発明のブレーキパッドは、裏
板と金属および／または合金を含有した摩擦板とが金属
および／または合金でなるメッキ層を介在して固着され
てなるブレーキパッドであって、該摩擦板と該メッキ層
との間に、該摩擦板に対比して金属および／または合金
を多く含む物質でなる中間層が介在されており、かつ該
メッキ層および該中間層を含めた固着境界部の近傍の該
裏板および／または該中間層に複数の空洞部が形成され
ていることを特徴とするものである。That is, the brake pad of the present invention is a brake pad in which a back plate and a friction plate containing a metal and / or an alloy are fixedly interposed with a plating layer made of a metal and / or an alloy interposed therebetween. An intermediate layer made of a substance containing more metal and / or alloy than the friction plate is interposed between the friction plate and the plating layer, and is fixed including the plating layer and the intermediate layer. A plurality of cavities are formed in the back plate and / or the intermediate layer near the boundary.
【００１１】[0011]
【発明の実施の態様】本発明のブレーキパッドにおける
裏板は、ブレーキパッドとしての強度を保持できる材料
ならば問題なく、従来から用いられている裏板と同等の
耐熱性と強度を有している材料、具体的には、例えば鋳
鉄，炭素鋼，合金鋼，機械構造用鋼およびステンレス鋼
に代表される耐熱鋼を挙げることができる。BEST MODE FOR CARRYING OUT THE INVENTION The back plate of the brake pad of the present invention has no problem as long as it can retain the strength as a brake pad, and has the same heat resistance and strength as the conventionally used back plate. Materials, specifically, for example, heat-resistant steel represented by cast iron, carbon steel, alloy steel, steel for machine structural use, and stainless steel.
【００１２】この裏板にメッキ層と中間層とを介在して
固着される摩擦板は、ブレーキパッドとしての摩擦特性
を有している材料ならば問題なく、従来から公知公用さ
れており、熱伝導性にすぐれている焼結摩擦材料の場
合、例えば１Ｗ／（ｍ．Ｋ）よりも高い熱伝導性の焼結
摩擦材料の場合が好ましく、特に３Ｗ／（ｍ．Ｋ）より
も高い熱伝導性の金属系焼結摩擦材料の場合に効果が高
く好ましいことである。また、摩擦板の材質から判断し
た場合には、具体的には、例えばＦｅ，Ｃｏ，Ｎｉ，Ｃ
ｕの金属およびこれらを含む合金の中の１種以上を３０
体積％以上含有し、その他に以下のフィラ−を含有して
いる金属系焼結摩擦材料の場合に効果が高くなることか
ら、特に好ましいことである。The friction plate fixed to the back plate with a plating layer and an intermediate layer interposed therebetween has no problem as long as it is a material having friction characteristics as a brake pad. In the case of a sintered friction material having excellent conductivity, for example, a sintered friction material having a heat conductivity higher than 1 W / (mK) is preferable, and particularly a heat conduction higher than 3 W / (mK). The effect is high in the case of a metallic sintered friction material having a high effect and is preferable. Further, when judging from the material of the friction plate, specifically, for example, Fe, Co, Ni, C
at least one of the metals u and alloys containing
This is particularly preferable because the effect is enhanced in the case of a metal-based sintered friction material containing not less than% by volume and the following filler in addition.
【００１３】この金属系焼結摩擦材料を摩擦板に用いる
場合に、金属系摩擦材料に含有させるフィラーとして
は、金属（Ｓｉ，Ｂの半金属を含む）の酸化物，炭化
物，窒化物，フッ化物，硫化物，珪素化物およびこれら
の相互固溶体、金属の炭酸塩，鉱物物質，金属間化合
物，黒鉛，カーボン，短繊維，長繊維の中の少なくとも
１種の無機物質、具体的には、例えば硫酸バリウム，タ
ルク，珪藻土，蛇紋石，コ−クス，ＭｇＯ，Ｆｅ2Ｏ3，
ＴｉＯ2，Ｂ2Ｏ3に代表される摩擦調整材、ＳｉＯ2，Ａ
ｌＮ，Ａｌ2Ｏ3，Ｓｉ3Ｎ4，ＳｉＣ，Ｂ4Ｃ，ムライ
ト，周期律表の４ａ，５ａ，６ａ族金属の炭化物，窒化
物，酸化物，珪素化物およびこれらの相互固溶体に代表
されるセラミックス、ＮｉＳｉ2，ＴｉＳｉ2，ＴｉＡｌ
3，ＮｉＡｌ3，ＣｕＡｌ2，Ｎｉ3Ａｌ，Ｃｏ3Ａｌ，Ｚ
ｒ3Ａｌ，Ｆｅ3Ａｌ，ＦｅＡｌ3に代表される金属間化
合物、黒鉛，ＭｏＳ2，ＷＳ2，ＢａＦ2，ＣａＦ2，ｈＢ
Ｎ，ＰｂＯ，フッ化黒鉛，に代表される固体潤滑材、パ
ルプ繊維，レ−ヨン繊維，カ−ボン繊維，シリカ−アル
ミナ繊維，チタン酸カリウム繊維，炭化珪素繊維，ボロ
ン繊維，に例示される各種の繊維または各種のウイスカ
−に代表される補強材の中から選ばれた少なくとも１種
からなるものである。When the metal-based sintered friction material is used for a friction plate, as a filler to be contained in the metal-based friction material, oxides, carbides, nitrides, fluorides of metals (including semimetals of Si and B) are used. , Sulfide, silicide and their mutual solid solutions, at least one inorganic substance among metal carbonates, mineral substances, intermetallic compounds, graphite, carbon, short fibers and long fibers, specifically, for example, Barium sulfate, talc, diatomaceous earth, serpentine, coke, MgO, Fe 2 O 3 ,
Friction modifiers represented by TiO 2 and B 2 O 3 , SiO 2 and A
1N, Al 2 O 3 , Si 3 N 4 , SiC, B 4 C, mullite, carbides, nitrides, oxides, silicides of metals belonging to groups 4a, 5a and 6a of the periodic table and their mutual solid solutions. Ceramics, NiSi 2 , TiSi 2 , TiAl
3, NiAl 3, CuAl 2, Ni 3 Al, Co 3 Al, Z
intermetallic compounds represented by r 3 Al, Fe 3 Al, FeAl 3 , graphite, MoS 2 , WS 2 , BaF 2 , CaF 2 , hB
Examples are solid lubricants represented by N, PbO and fluorinated graphite, pulp fibers, rayon fibers, carbon fibers, silica-alumina fibers, potassium titanate fibers, silicon carbide fibers, and boron fibers. It is made of at least one selected from reinforcing materials represented by various fibers or various whiskers.
【００１４】この裏板と摩擦板との間に介在されるメッ
キ層と中間層のうち、裏板側に隣接されるメッキ層は、
裏板と中間層とが強力に固着される材料ならば、特に材
質的および層厚さにおいて制限はなく、このうち材質的
には、具体的には、例えばＮｉ，Ｃｏ，Ｃｕ，Ｎｉ−
Ｐ，Ｃｕ−Ｚｎ，Ｃｕ−Ｓｎを挙げることができるこ
と、層厚さとしては、２０μｍ以下であれば好ましく、
特に工程時間と固着強度から１〜１０μｍであることが
好ましいことである。[0014] Of the plating layer and the intermediate layer interposed between the back plate and the friction plate, the plating layer adjacent to the back plate side is:
As long as the back plate and the intermediate layer are strongly bonded to each other, there is no particular limitation on the material and the layer thickness. Among them, specifically, for example, Ni, Co, Cu, Ni-
P, Cu-Zn and Cu-Sn can be mentioned, and the layer thickness is preferably 20 μm or less,
In particular, the thickness is preferably 1 to 10 μm from the viewpoint of the process time and the fixing strength.
【００１５】裏板と摩擦板との間に介在されるもう一つ
の層であり、摩擦板側に隣接される中間層は、金属およ
び／または合金のみからなる場合、または金属および／
または合金と、他に上述のフィラーに代表される無機物
質とからなる場合、さらにはこれらに樹脂に代表される
有機物質が含まれる場合がある。これらの中でも、中間
層は、摩擦板の組成に割合近似した組成とし、かつ摩擦
板に対比して金属および／または合金が多く含有されて
いる組成成分とすることが好ましい。この中間層に含有
される金属および／または合金は、具体的には、例えば
Ｆｅ，Ｎｉ，Ｃｏ，Ｃｕ，Ｚｎ，Ｓｎ，Ａｌ，Ｍｎ，Ｔ
ｉ，Ｗ，Ｍｏ，Ｃｒの金属、Ｎｉ−Ｐ，Ｃｕ−Ｚｎ，Ｃ
ｕ−Ｓｎ，Ｆｅ−Ｎｉ，Ｃｕ−Ｎｉの合金に代表される
１種以上でなる場合を挙げることができる。The intermediate layer, which is another layer interposed between the back plate and the friction plate and adjacent to the friction plate side, is made of only metal and / or alloy, or
Or, when it is composed of an alloy and an inorganic substance typified by the above-mentioned filler, an organic substance typified by a resin may be contained in these. Among these, it is preferable that the intermediate layer has a composition close to the composition of the friction plate and a composition component containing a larger amount of metal and / or alloy than the friction plate. The metal and / or alloy contained in this intermediate layer is, for example, Fe, Ni, Co, Cu, Zn, Sn, Al, Mn, T
i, W, Mo, Cr metal, Ni-P, Cu-Zn, C
Examples include one or more of alloys represented by u-Sn, Fe-Ni, and Cu-Ni alloys.
【００１６】この中間層を別の方向から表現すると、摩
擦板とメッキ層との接着性がすぐれていて、かつ剪断強
度のすぐれた物質でなることが特に好ましいことであ
る。中間層の剪断強度は、摩擦板の剪断強度よりも高い
こと、具体的には、１００ｋｇｆ／ｃｍ2以上であるこ
とが好ましいことである。中間層の厚さは、摩擦板と対
比して厚い場合、同等の厚さの場合または薄い場合でも
それほど問題はないが、パッド全体の厚さおよびトータ
ル寿命からして、摩擦板に対比して薄くすることが好ま
しく、逆に後述する空洞部が中間層内に形成でき得る程
度の厚さにしておくことが好ましい。When this intermediate layer is expressed in another direction, it is particularly preferable that the intermediate layer be made of a material having excellent adhesion between the friction plate and the plating layer and having excellent shear strength. The shear strength of the intermediate layer is preferably higher than the shear strength of the friction plate, specifically, preferably 100 kgf / cm 2 or more. The thickness of the intermediate layer is not so problematic when it is thick compared to the friction plate, when it is the same thickness or when it is thin, but considering the thickness of the whole pad and the total life, it is It is preferable to make the thickness thin, and conversely, it is preferable to make the thickness such that a cavity described later can be formed in the intermediate layer.
【００１７】この裏板と中間層との固着境界部に形成さ
れる空洞部は、その形成される位置および形状として
は、摩擦板の摩擦摺動面からの熱を空冷し得る効果が高
く、かつ裏板と摩擦板との固着強度の低下が生じないよ
うな位置および形状であればよく、形状的には、具体的
には、例えば裏板と中間層との固着面に対して垂直断面
における形状が円形状，楕円形状，半円形状，半楕円形
状，または三角形状や四角形状で代表される多角形状に
形成すればく、特に製造上の容易性，固着強度，空冷効
果をも加味して、半円形状，半楕円形状または四角形状
でなる１種以上の形状をバランスよく配置させることが
好ましい。また、この空洞部の形成される位置は、裏板
側，中間層側またはこの両方に位置している場合でもよ
く、これらの空洞部の位置は、固着強度，空冷効果を加
味して、均一に分散させることが好ましい。このときの
固着境界部は、メッキ層から中間層側および裏板側にそ
れぞれ空洞部を形成することが可能な深さにほぼ相当す
る。The cavity formed at the fixed boundary between the back plate and the intermediate layer has a high effect of air-cooling the heat from the friction sliding surface of the friction plate in terms of the position and the shape of the cavity. The position and the shape may be such that the fixing strength between the back plate and the friction plate does not decrease. Specifically, for example, the cross section is perpendicular to the fixing surface between the back plate and the intermediate layer. The shape should be circular, elliptical, semi-circular, semi-elliptical, or polygonal, such as triangular or quadrangular, taking into account the ease of manufacturing, fixing strength, and air cooling effect. It is preferable that one or more types of semicircular, semielliptical or square shapes are arranged in a well-balanced manner. Further, the positions where the hollow portions are formed may be located on the back plate side, the intermediate layer side, or both, and the positions of these hollow portions are uniform considering the fixing strength and the air cooling effect. It is preferable to disperse them in The bonding boundary at this time substantially corresponds to a depth at which a cavity can be formed on the intermediate layer side and the back plate side from the plating layer.
【００１８】これらの空洞部の形状について、別の方向
から観察すると、中間層と裏板との固着面に対する垂直
方向の最大長さ（以下、「ｔ」と表わす）と、固着面上
における最小長さ（以下、「ｈ」と表わす）との関係が
２ｔ≧ｈでなることが固着強度の関係から好ましく、固
着面における空洞部の総面積（以下、「Ｐ」と表わす）
と、固着面における固着部の総面積「以下、「Ｓ」と表
わす）との比が、Ｐ：Ｓ＝２：１〜３：１０でなること
が固着強度および空冷効果から好ましく、特にＰ：Ｓ＝
１：１〜１：３でなることが好ましいことである。ま
た、空洞部の形状におけるｔは、剪断強度の低下を防止
するために中間層の厚さよりも小さくすることが好まし
いことである。When observing the shape of these cavities from different directions, the maximum length in the direction perpendicular to the fixing surface between the intermediate layer and the back plate (hereinafter referred to as "t") and the minimum length on the fixing surface are shown. It is preferable that the relationship with the length (hereinafter, referred to as “h”) is 2t ≧ h, from the viewpoint of the fixing strength, and the total area of the cavity in the fixing surface (hereinafter, referred to as “P”)
It is preferable from the viewpoint of the fixing strength and the air-cooling effect that the ratio of the ratio of P: S to the total area of the fixing portion on the fixing surface (hereinafter, referred to as “S”) is 2: 1 to 3:10. S =
It is preferable that the ratio be 1: 1 to 1: 3. Further, it is preferable that t in the shape of the hollow portion is smaller than the thickness of the intermediate layer in order to prevent a decrease in shear strength.
【００１９】この空洞部の位置および形状について、例
示した図面に基づいて説明する。まず、図１は、摩擦板
を形成するための摩擦材組成物の成形体と中間層を形成
するための中間層形成物質の成形体との積層成形体にお
ける中間層形成物質（１ａ）の面側に空洞形成部（３
ａ）となる溝を形成した積層成形体の正面図である。図
２は、裏板（２）の正面図である。図３は、一面にメッ
キ層を形成した裏板（２）のメッキ層面に、図１の中間
層形成物質の面に溝を形成した積層成形体を載置し、焼
結および固着接合した摩擦板側からのブレーキパッドの
正面図である。図４は、図３に示したブレーキパッドの
Ａ−Ａ断面から示した摩擦板面に対する垂直断面図であ
る。図５〜図８は、空洞部（３）の形状の変形例として
示した図３と同様の垂直断面図である。図９および図１
０は、裏板（２）のメッキ層側から形成した空洞形成部
（３ａ）の形状および位置の変形例として示したメッキ
層側からの裏板の正面図である。The position and shape of the cavity will be described with reference to the illustrated drawings. First, FIG. 1 shows a surface of an intermediate layer forming substance (1a) in a laminated molded article of a molded article of a friction material composition for forming a friction plate and a molded article of an intermediate layer forming substance for forming an intermediate layer. A cavity forming part (3
It is a front view of the laminated molded object which formed the groove | channel which becomes a). FIG. 2 is a front view of the back plate (2). FIG. 3 shows a frictional product obtained by placing the laminated molded product having a groove formed on the surface of the intermediate layer forming material of FIG. 1 on the plating layer surface of the back plate (2) having a plating layer formed on one surface, and sintering and firmly joining. It is a front view of the brake pad from the board side. FIG. 4 is a vertical sectional view taken along the line AA of the brake pad shown in FIG. 5 to 8 are vertical cross-sectional views similar to FIG. 3 showing a modification of the shape of the hollow portion (3). 9 and 1
Numeral 0 is a front view of the back plate from the plating layer side as a modification of the shape and position of the cavity forming portion (3a) formed from the plating layer side of the back plate (2).
【００２０】本発明のブレーキパッドは、従来のブレー
キパッドの製造方法を応用することにより製造すること
ができるが、製造工程の簡素化，短縮化から以下の方法
で行うことが好ましい。すなわち、本発明のブレーキパ
ッドの製造方法は、摩擦板を形成するための摩擦材組成
物の成形体と、中間層を形成するための中間層形成物質
の成形体とを積層した積層成形体を得る工程、該積層成
形体における該中間層形成物質の成形体に空洞部となる
ための空洞形成部を加工する工程、一面に金属または合
金のメッキ層を形成した裏板の該メッキ層面と該空洞形
成部を加工した中間層面とを密着させて非酸化性雰囲気
中で加熱し、該摩擦材組成物の成形体を摩擦板に、該中
間層形成物質の成形体を中間層にするとともに、該摩擦
板と該中間層と該メッキ層と該裏板とを固着接合し、該
空洞形成部が空洞部として形成される工程とを含むこと
を特徴とする方法である。The brake pad of the present invention can be manufactured by applying a conventional method for manufacturing a brake pad, but is preferably performed by the following method in order to simplify and shorten the manufacturing process. That is, the method for manufacturing a brake pad of the present invention comprises a laminated molded product obtained by laminating a molded product of a friction material composition for forming a friction plate and a molded product of an intermediate layer-forming substance for forming an intermediate layer. Obtaining, forming a cavity for forming a cavity in the molded article of the intermediate layer-forming substance in the laminated molded article, and forming a metal or alloy plating layer on one surface of the plating layer surface of the back plate. Heating in a non-oxidizing atmosphere by bringing the intermediate layer surface in which the cavity forming portion is processed into close contact with each other, heating the molded body of the friction material composition to a friction plate, and forming the molded body of the intermediate layer forming substance into an intermediate layer, Fixing the friction plate, the intermediate layer, the plating layer, and the back plate, and forming the cavity forming portion as a cavity.
【００２１】また、本発明のブレーキパッドは、製造工
程の品質管理，固着部近辺の強度から以下の方法で行う
ことも好ましい。すなわち、本発明のブレーキパッドの
製造方法は、摩擦板を形成するための摩擦材組成物の成
形体と、中間層を形成するための中間層形成物質の成形
体とを積層した積層成形体を得る工程、一面に金属また
は合金のメッキ層を形成した裏板の該メッキ層側から空
洞部となるための空洞形成部を加工する工程、該メッキ
層上に該積層成形体を載置して非酸化性雰囲気中で加熱
し、該摩擦材組成物の成形体を摩擦板に、該中間層形成
物質の成形体を中間層にするとともに、該摩擦板と該中
間層と該メッキ層と該裏板とを固着接合し、該空洞形成
部が空洞部として形成される工程とを含むことを特徴と
する方法である。Further, the brake pad of the present invention is preferably subjected to the following method from the viewpoint of quality control in the manufacturing process and strength near the fixing portion. That is, the method for manufacturing a brake pad of the present invention comprises a laminated molded product obtained by laminating a molded product of a friction material composition for forming a friction plate and a molded product of an intermediate layer-forming substance for forming an intermediate layer. Obtaining, a step of processing a cavity forming portion for forming a cavity from the plating layer side of the back plate having a metal or alloy plating layer formed on one surface, placing the laminated molded body on the plating layer Heating in a non-oxidizing atmosphere, the molded article of the friction material composition is used as a friction plate, and the molded article of the intermediate layer forming substance is used as an intermediate layer, and the friction plate, the intermediate layer, the plating layer, and the Bonding and bonding a back plate, and forming the cavity forming portion as a cavity portion.
【００２２】さらに、本発明のブレーキパッドは、摩擦
板を形成するための摩擦材組成物の成形体と、中間層を
形成するための中間層形成物質の成形体とを積層した積
層成形体を得る工程、該積層成形体における該中間層形
成物質の成形体に第１空洞部となるための第１空洞形成
部を加工する工程、一面に金属または合金のメッキ層を
形成した裏板の該メッキ層側から第２空洞部となるため
の第２空洞形成部を加工する工程、該メッキ層上に該積
層成形体を載置して非酸化性雰囲気中で加熱し、該摩擦
材組成物の成形体を摩擦板に、該中間層形成物質の成形
体を中間層にするとともに、該摩擦板と該中間層と該メ
ッキ層と該裏板とを固着接合し、該第１および第２の空
洞形成部が第１および第２の空洞部として形成される工
程とを含むことを特徴とする方法である。Further, the brake pad of the present invention provides a laminated molded article obtained by laminating a molded article of a friction material composition for forming a friction plate and a molded article of an intermediate layer forming substance for forming an intermediate layer. Obtaining a first cavity forming portion for forming a first cavity in the molded article of the intermediate layer forming substance in the laminated molded article; and forming a metal or alloy plating layer on one surface of the back plate. Processing a second cavity forming portion for forming a second cavity from the plating layer side, placing the laminated molded body on the plating layer and heating in a non-oxidizing atmosphere; The molded body of the intermediate layer is formed into an intermediate layer, and the friction plate, the intermediate layer, the plating layer, and the back plate are fixedly joined to the first and second friction plates. Forming the cavity forming portion as first and second cavity portions. It is a method for the butterflies.
【００２３】これらの本発明の製造方法における空洞形
成部は、中間層形成物質の成形体の一面および／または
メッキ層を形成した裏板のメッキ層の面に溝などの凹み
を、それぞれの溝形状に加工形成すればよい。In the production method of the present invention, the cavity forming portion is provided with a recess such as a groove on one surface of the molded article of the intermediate layer forming material and / or the surface of the plating layer of the back plate on which the plating layer is formed. What is necessary is just to process and shape it.
【００２４】これらの本発明の製造方法における非酸化
性雰囲気は、具体的には、例えば真空，水素ガス，分解
アンモニアガス，窒素ガス，変成炭化水素ガス，不活性
ガスを現し、これらのうち真空，水素ガス，分解アンモ
ニアガス，変成炭化水素ガスでなることが好ましい。ま
た、本発明の製造方法における加熱焼結する温度は、主
として摩擦板の材質により選定する必要があり、摩擦板
が硬化し、かつ摩擦板と裏板とが固着される温度であれ
ばよく、具体的には、例えば、金属系焼結摩擦材料でな
る摩擦板を用いる場合には、７００〜１１００℃の温度
である。さらに、摩擦板と中間層とメッキ層と裏板との
相互接合面において、拡散接合をさせて固着接合強度を
高めるために、加熱焼結時にこれら相互間を加圧するこ
とも好ましいことである。The non-oxidizing atmosphere in the production method of the present invention specifically represents, for example, vacuum, hydrogen gas, decomposed ammonia gas, nitrogen gas, modified hydrocarbon gas, and inert gas. , Hydrogen gas, cracked ammonia gas, and modified hydrocarbon gas. Further, the temperature for heating and sintering in the production method of the present invention needs to be selected mainly according to the material of the friction plate, and the friction plate is hardened, and may be any temperature at which the friction plate and the back plate are fixed, Specifically, for example, when a friction plate made of a metal-based sintered friction material is used, the temperature is 700 to 1100 ° C. Further, it is also preferable to pressurize the frictional plate, the intermediate layer, the plating layer, and the back plate during the heat sintering in order to increase the bonding strength by performing diffusion bonding on the mutual bonding surface.
【００２５】[0025]
【作用】本発明のブレーキパッドは、空洞部が作動時
に、摩擦板の摩擦作用面に発生する摩擦熱などの熱を空
冷させる作用をし、この空冷により裏板への熱の伝達を
遮断または低減させる作用となり、摩擦板と裏板との熱
膨張差による反りなどの熱変形を抑制する作用をし、メ
ッキ層と中間層とが摩擦板と裏板との接着強度を高める
作用をし、両層が摩擦板と裏板との熱膨張差による反り
などの熱変形を抑制する作用をし、これらの作用のシナ
ジー効果として、ブレーキパッドから作動時に発生する
ブレーキ鳴きを抑制または減衰させる作用となっている
ものである。The brake pad of the present invention has a function of air-cooling heat such as frictional heat generated on the frictional action surface of the friction plate when the hollow portion operates, and this air-cooling cuts off or transfers heat to the back plate. It acts to reduce and acts to suppress thermal deformation such as warpage due to the difference in thermal expansion between the friction plate and the back plate, and the plating layer and the intermediate layer increase the adhesive strength between the friction plate and the back plate, Both layers act to suppress thermal deformation such as warpage due to the difference in thermal expansion between the friction plate and the back plate, and as a synergistic effect of these effects, the effect of suppressing or damping brake squeal generated during operation from the brake pad. Is what it is.
【００２６】[0026]
【実施例】市販されている各種の出発物質を用いて、２
７％Ｃｕ−３％Ｓｎ−１０％Ｎｉ−１０％ＳｉＯ2−５
％マイカ−１０％ＣａＣＯ3−３５％黒鉛（ｖｏｌ％）
の組成成分に秤量し、これを混合し摩擦材組成物の混合
物を得た。また、同様にして表１に示したそれぞれの中
間層形成物質１〜５の混合物を得た。次に、ダイ，上パ
ンチ，下パンチよりなる粉末成形装置を用いて、これら
の混合物からなる成形体を作製した。このとき、まず下
パンチをダイより１０ｍｍ下げ中間層形成物質の混合物
を充填し、その後下パンチをさらに２０ｍｍ下げ摩擦材
組成物の混合物を充填し、上パンチにより２ｔｏｎ／ｃ
ｍ2の圧力で加圧成形して中間層形成物質の厚さが４ｍ
ｍ、摩擦材組成物の厚さが７ｍｍで総厚さ１１ｍｍの２
層構造の積層成形体を得た。この積層成形体の中間層形
成物質側に幅３ｍｍ、深さ３ｍｍの空洞形成部の溝を５
ｍｍ間隔になるように成形加工して図１に示した積層成
形体を得た。この積層成形体を、図２に示した６μｍ層
厚さのＣｕメッキを施した６ｍｍ厚さの自動車構造用熱
間圧延鋼板（ＳＡＰＨ４４０）でなる裏板のメッキ層上
に載置し、１０ｋｇ／ｃｍ2の加圧状態にして水素雰囲
気中、８５０℃で６０分間焼結し、図３および図４の構
造でなる本発明品１〜５のブレーキパッドを得た。EXAMPLES Using various commercially available starting materials, 2
7% Cu-3% Sn- 10% Ni-10% SiO 2 -5
% Mica -10% CaCO 3 -35% graphite (vol%)
Were weighed and mixed to obtain a mixture of friction material compositions. Similarly, mixtures of the respective intermediate layer forming substances 1 to 5 shown in Table 1 were obtained. Next, using a powder molding apparatus including a die, an upper punch, and a lower punch, a molded body made of a mixture thereof was produced. At this time, the lower punch is first lowered by 10 mm from the die, and the mixture of the intermediate layer forming substance is filled, then the lower punch is further lowered by 20 mm, and the mixture of the friction material composition is filled, and the upper punch is filled with 2 ton / c.
The thickness of the intermediate layer forming material was pressed at a pressure of m 2 is 4m
m, the thickness of the friction material composition is 7 mm and the total thickness is 11 mm.
A laminated molded article having a layer structure was obtained. On the intermediate layer forming substance side of the laminated molded body, a groove of a cavity forming portion having a width of 3 mm and a depth of 3 mm was formed.
Forming was performed so as to have an interval of mm to obtain a laminated molded article shown in FIG. This laminated molded product was placed on a plating layer of a back plate made of a 6 mm-thick Cu-plated hot-rolled steel plate for automotive structure (SAPH440) shown in FIG. Sintering was performed at 850 ° C. for 60 minutes in a hydrogen atmosphere under a pressurized state of cm 2 to obtain brake pads of the present invention products 1 to 5 having the structures shown in FIGS.
【００２７】次いで、本発明品１のうち、積層成形体の
中間層形成物質の面に溝成形加工を施さなかったこと、
および裏板のメッキ層面側から幅３ｍｍ、深さ３ｍｍの
空洞形成部となるための溝を５ｍｍ間隔になるように成
形加工した以外は、本発明品１と同様に作製して図５に
示した本発明品６のブレーキパッドを得た。Next, in the product 1 of the present invention, the surface of the material for forming the intermediate layer of the laminated molded product was not subjected to the groove forming process.
5 was prepared in the same manner as the product 1 of the present invention except that grooves for forming hollow portions having a width of 3 mm and a depth of 3 mm were formed at intervals of 5 mm from the plating layer surface side of the back plate. Thus, a brake pad of Inventive Product 6 was obtained.
【００２８】比較品として、本発明品１のうち、積層成
形体の中間層形成物質の厚さ３ｍｍ、摩擦材組成物の厚
さが８ｍｍとし、中間層形成物質側への溝加工を施さな
かった以外はほぼ同様に処理して、図１１に示した比較
品１のブレーキパッドを得た。As a comparative product, of the product 1 of the present invention, the thickness of the intermediate layer forming substance of the laminated molded product was 3 mm, the thickness of the friction material composition was 8 mm, and no groove was formed on the intermediate layer forming substance side. The same procedure as above was carried out to obtain a brake pad of Comparative Product 1 shown in FIG.
【００２９】また、比較品として、本発明品１のうち、
直径１０ｍｍの貫通孔を５つ形成した図１２に示した裏
板を用いたこと、この貫通孔にも摩擦材組成物の混合物
が完全に埋設されるように作製したこと、中間層形成物
質を用いなかったこと以外は、本発明品１と同様にして
図１３に示した比較品２のブレーキパッドを得た。As a comparative product, of the product 1 of the present invention,
The back plate shown in FIG. 12 in which five through-holes having a diameter of 10 mm were formed was used, and the through-hole was prepared so that the mixture of the friction material composition was completely embedded therein. A brake pad of a comparative product 2 shown in FIG. 13 was obtained in the same manner as the product 1 of the present invention except that the brake pad was not used.
【００３０】さらに、比較品として、本発明品６のう
ち、図１４に示したように摩擦板となる成形体の表面か
ら幅３ｍｍの溝で１０ｍｍ間隔になるように切断される
状態に成形加工した以外は、本発明品６と同様にして図
１５に示した比較品３のブレーキパッドを得た。Further, as a comparative product, of the product 6 of the present invention, as shown in FIG. 14, it was formed into a state in which it was cut from the surface of the formed body serving as a friction plate at intervals of 10 mm with grooves of 3 mm width. A brake pad of a comparative product 3 shown in FIG.
【００３１】こうして得た本発明品１〜６および比較品
１〜３について、ダイナモメータを用いて慣性モーメン
ト（イナーシャ）：６．７５ｋｇ．ｍ．Ｓ2、摩擦作用
面積：５０ｃｍ2、相手材：ＦＣ２５にて、すり合せを
行った後、速度：５０ｋｍ／ｈ、面圧：１０ｋｇ／ｃｍ
2、制動前温度１００，１５０，２００，２５０℃の各
条件で１００回ずつ制動し、その時の摩擦係数、ブレー
キパッド側の摩擦面より１ｍｍ深さの場所の摩擦板温
度、ブレーキパッドの裏面より３ｍｍ深さの場所の裏板
温度、キャリバ内のブレーキオイルの温度を測定し、そ
の結果を表２および表３に示した。The thus obtained products 1 to 6 of the present invention and comparative products 1 to 3 were obtained by using a dynamometer with a moment of inertia (inertia) of 6.75 kg. m. S 2 , frictional action area: 50 cm 2 , mating material: FC25, after performing a grinding, speed: 50 km / h, surface pressure: 10 kg / cm
2. Braking is performed 100 times at each temperature of 100, 150, 200, and 250 ° C before braking. Coefficient of friction at that time, friction plate temperature at a depth of 1 mm from the friction surface on the brake pad side, and from the back surface of the brake pad The temperature of the back plate at a depth of 3 mm and the temperature of the brake oil in the caliber were measured, and the results are shown in Tables 2 and 3.
【００３２】次に、本発明品１〜６および比較品１〜３
について、慣性モ−メント：６．７５ｋｇ・ｍ・ｓｅｃ
2、摩擦作用面積：５０ｃｍ2、相手板：ＦＣ２５でもっ
て、すり合せを行った後、速度：４０ｋｍ／ｈ、面圧：
２〜２０ｋｇ／ｃｍ2、制動前温度：５０〜２００℃、
制動回数：１００回の条件で摩擦試験を行い、その時の
ブレーキ鳴き音を騒音計で測定し、ある一定音圧以上に
なったところでブレーキ鳴きが発生したと判断し、その
時のブレーキ発生率を求めて、その結果を表２および表
３に併記した。また、本発明品１〜６の摩擦板の熱伝導
率は、３．５Ｗ／（ｍ．Ｋ）であり、中間層の剪断強度
は、それぞれ表２に示した値であった。さらに、ＪＡＳ
Ｏ（日本自動車規格）のＣ４３７−８４に準じて常温時
のブレーキパッドの接着強度試験を行い、その結果を表
２および表３に併記した。なお、本発明品１〜６の空洞
部形状としてのｔ／ｈは、全て１／１であった。Next, products 1 to 6 of the present invention and comparative products 1 to 3
Inertia moment: 6.75 kgmsec
2. Friction action area: 50 cm 2 , mating plate: FC25, and after rubbing, speed: 40 km / h, surface pressure:
2 to 20 kg / cm 2 , temperature before braking: 50 to 200 ° C.
Brake frequency: A friction test was performed under the condition of 100 times, the brake noise at that time was measured by a sound level meter, and it was judged that brake noise occurred when the sound pressure exceeded a certain level, and the brake occurrence rate at that time was calculated. The results are shown in Tables 2 and 3. The thermal conductivity of the friction plates of the products 1 to 6 of the present invention was 3.5 W / (mK), and the shear strength of the intermediate layer was the value shown in Table 2. In addition, JAS
An adhesive strength test of the brake pad at normal temperature was performed according to C437-84 of O (Japanese Automobile Standard), and the results are shown in Tables 2 and 3. In addition, t / h as a hollow part shape of the present invention products 1 to 6 was all 1/1.
【００３３】[0033]
【表１】 [Table 1]
【００３４】[0034]
【表２】 [Table 2]
【００３５】[0035]
【表３】 [Table 3]
【００３６】[0036]
【発明の効果】本発明の断熱性にすぐれたブレーキパッ
ドは、冷却作用となる空洞部を有していない従来のブレ
ーキパッドに比べて、作動時における摩擦作用面で発生
した熱が裏板に伝達されるのを抑制し、オイル温度の上
昇をも抑止し、鳴きの発生率を著しく低下させるという
効果があり、かつ中間層が摩擦板と裏板との熱膨張によ
る歪を緩和するとともに固着接合を高める効果を発揮し
ているものである。According to the brake pad of the present invention having excellent heat insulating properties, the heat generated on the frictional action surface during operation is more likely to be applied to the back plate than the conventional brake pad having no cooling cavity. It has the effect of suppressing transmission, suppressing the rise in oil temperature, significantly reducing the rate of squealing, and the intermediate layer mitigates distortion due to thermal expansion between the friction plate and the back plate and adheres. This is an effect that enhances bonding.
【図１】実施例における本発明品１の空洞部となるため
の溝を形成した摩擦材組成物の成形体の正面図。FIG. 1 is a front view of a molded article of a friction material composition in which a groove for forming a cavity of a product 1 of the present invention in an embodiment is formed.
【図２】実施例における本発明品１の裏板の正面図。FIG. 2 is a front view of a back plate of the product 1 of the present invention in the embodiment.
【図３】裏板上に摩擦板を固着した状態で示した正面
図。FIG. 3 is a front view showing a state in which a friction plate is fixed on a back plate.
【図４】図３の状態におけるＡ−Ａ断面で観察した本発
明のブレーキパッドの摩擦板面に対する垂直断面図。4 is a vertical cross-sectional view of the brake pad of the present invention, taken along the line AA in the state of FIG. 3, with respect to the friction plate surface.
【図５】〜FIG. 5
【図８】図４と同様に観察した空洞部の形状の変形例と
して例示した垂直断面図。FIG. 8 is a vertical cross-sectional view illustrating a modified example of the shape of the cavity observed in the same manner as in FIG. 4;
【図９】およびFIG. 9 and
【図１０】裏板の片面に空洞部となるための空洞形成部
としての溝の変形例として例示した裏板の正面図。FIG. 10 is a front view of a back plate exemplified as a modified example of a groove as a cavity forming portion for forming a cavity on one surface of the back plate.
【図１１】実施例における空洞部のない場合の比較品１
のブレーキパッドの摩擦板面に対する垂直断面図。FIG. 11 is a comparative example 1 having no hollow portion in the embodiment.
FIG. 4 is a vertical cross-sectional view of the brake pad of FIG.
【図１２】実施例における貫通孔を形成した比較品２の
裏板の正面図。FIG. 12 is a front view of a back plate of a comparative product 2 in which through holes are formed in the example.
【図１３】図１２の裏板に、摩擦板を固着し、図４と同
様に観察した比較品２の垂直断面図。13 is a vertical cross-sectional view of a comparative product 2 in which a friction plate is fixed to the back plate of FIG. 12 and observed as in FIG.
【図１４】実施例における切断溝を形成した比較品３の
摩擦板の正面図。FIG. 14 is a front view of a friction plate of a comparative product 3 in which a cutting groove is formed in the example.
【図１５】図１４の摩擦板を裏板に固着し、図４と同様
に観察した比較品３の垂直断面図。15 is a vertical cross-sectional view of a comparative product 3 in which the friction plate of FIG. 14 is fixed to a back plate and observed in the same manner as in FIG. 4;
１ 摩擦板、 ２ 裏板、 ３ 空洞部 ３ａ 空洞形成部、 ３ｂ 貫通孔、 ３ｃ 切断溝、 ４ 中間層 ５ メッキ層 DESCRIPTION OF SYMBOLS 1 Friction plate, 2 Back plate, 3 Cavity part 3a Cavity formation part, 3b Through hole, 3c Cutting groove, 4 Intermediate layer 5 Plating layer
Claims (15)
た摩擦板とが金属および／または合金でなるメッキ層を
介在して固着されてなるブレーキパッドであって、該摩
擦板と該メッキ層との間に、該摩擦板に対比して金属お
よび／または合金を多く含む物質でなる中間層が介在さ
れており、かつ該メッキ層および該中間層を含めた固着
境界部の近傍の該裏板および／または該中間層に複数の
空洞部が形成されていることを特徴とする断熱性および
接着性にすぐれたブレーキパッド。1. A brake pad comprising a back plate and a friction plate containing a metal and / or an alloy fixed with a plating layer made of a metal and / or an alloy interposed therebetween, wherein the friction plate and the plating layer And an intermediate layer made of a substance rich in metal and / or alloy compared to the friction plate, and the back surface near the fixed boundary including the plated layer and the intermediate layer. A brake pad excellent in heat insulation and adhesiveness, characterized in that a plurality of cavities are formed in a plate and / or the intermediate layer.
Ｋ）以上でなる摩擦材料でなることを特徴とする請求項
１記載の断熱性および接着性にすぐれたブレーキパッ
ド。2. The friction plate has a thermal conductivity of 1 W / (m.
2. The brake pad according to claim 1, wherein the brake pad is made of a friction material composed of K) or more.
擦材料でなることを特徴とする請求項１または２記載の
断熱性および接着性にすぐれたブレーキパッド。3. The brake pad according to claim 1, wherein the friction plate is made of a metal-based friction material containing Cu.
／ｃｍ2以上の物質でなることを特徴とする請求項１，
２または３記載の断熱性および接着性にすぐれたブレー
キパッド。4. The intermediate layer has a shear strength of 100 kgf.
/ Cm 2 or more.
4. The brake pad according to 2 or 3, which is excellent in heat insulation and adhesiveness.
に対比して薄くなっていることを特徴とする請求項１，
２，３または４記載の断熱性および接着性にすぐれたブ
レーキパッド。5. The intermediate layer according to claim 1, wherein a thickness of the intermediate layer is smaller than a thickness of the friction plate.
The brake pad having excellent heat insulating properties and adhesiveness according to 2, 3, or 4.
ていることを特徴とする請求項１，２，３，４または５
記載の断熱性および接着性にすぐれたブレーキパッド。6. The method according to claim 1, wherein the cavity is formed in the intermediate layer.
Brake pad with excellent heat insulation and adhesive properties as described.
近傍に形成されていることを特徴とする請求項１，２，
３，４または５記載の断熱性および接着性にすぐれたブ
レーキパッド。7. The method according to claim 1, wherein the hollow portion is formed near a fixed boundary portion of the back plate.
The brake pad having excellent heat insulating properties and adhesiveness according to 3, 4, or 5.
の固着境界部近傍の両方に形成されていることを特徴と
する請求項１，２，３，４または５記載の断熱性および
接着性にすぐれたブレーキパッド。8. The heat insulating property according to claim 1, wherein the hollow portion is formed in both the vicinity of a fixed boundary portion between the intermediate layer and the back plate. Brake pads with excellent adhesion.
の固着面に対する垂直断面において最小面積となる形状
が三角形状，四角形状または半円状でなることを特徴と
する請求項１，２，３，４，５，６，７または８記載の
断熱性および接着性にすぐれたブレーキパッド。9. The hollow portion has a triangular shape, a square shape, or a semicircular shape having a minimum area in a cross section perpendicular to a fixing surface of the intermediate layer and the back plate. The brake pad excellent in heat insulation and adhesiveness according to 2, 3, 3, 4, 5, 6, 7 or 8.
との固着面に対する垂直方向の最大長さ（以下、「ｔ」
と表わす）と、該固着面上における最小長さ（以下、
「ｈ」と表わす）との関係が２ｔ≧ｈでなることを特徴
とする請求項１，２，３，４，５，６，７，８または９
記載の断熱性および接着性にすぐれたブレーキパッド。10. The maximum length (hereinafter, referred to as “t”) of the hollow portion in a vertical direction with respect to a fixing surface between the intermediate layer and the back plate.
) And the minimum length on the fixing surface (hereinafter, referred to as
10. The relationship of 2t ≧ h is represented by “h”).
Brake pad with excellent heat insulation and adhesive properties as described.
の固着面に平行方向における該空洞部の総面積（以下、
「Ｐ」と表わす）と該空洞部の総面積を除いた該固着面
での固着部の総面積（以下、「Ｓ」と表わす）との比
が、Ｐ：Ｓ＝２：１〜３：１０でなることを特徴とする
請求項１，２，３，４，５，６，７，８，９または１０
記載の断熱性および接着性にすぐれたブレーキパッド。11. The cavity has a total area (hereinafter, referred to as a total area) of the cavity in a direction parallel to a fixing surface of the intermediate layer and the back plate.
The ratio of P: S = 2: 1 to 3: P: S and the total area of the fixing portion at the fixing surface excluding the total area of the hollow portion (hereinafter, referred to as “S”). 11. The method according to claim 1, wherein the number is 10.
Brake pad with excellent heat insulation and adhesive properties as described.
でなることを特徴とする請求項１，２，３，４，５，
６，７，８，９，１０または１１記載の断熱性および接
着性にすぐれたブレーキパッド。12. The method according to claim 1, wherein said plating layer has a thickness of 20 μm or less.
The brake pad according to 6, 7, 8, 9, 10, or 11, which is excellent in heat insulation and adhesiveness.
の成形体と、中間層を形成するための中間層形成物質の
成形体とを積層した積層成形体を得る工程、該積層成形
体における該中間層形成物質の成形体に空洞部となるた
めの空洞形成部を加工する工程、一面に金属または合金
のメッキ層を形成した裏板の該メッキ層面と該空洞形成
部を加工した中間層面とを密着させて非酸化性雰囲気中
で加熱し、該摩擦材組成物の成形体を摩擦板に、該中間
層形成物質の成形体を中間層にするとともに、該摩擦板
と該中間層と該メッキ層と該裏板とを固着接合し、該空
洞形成部が空洞部として形成される工程とを含むことを
特徴とする断熱性および接着性にすぐれたブレーキパッ
ドの製造方法。13. A step of obtaining a laminated molded article in which a molded article of a friction material composition for forming a friction plate and a molded article of an intermediate layer forming substance for forming an intermediate layer are obtained. Processing a cavity forming part for forming a cavity in the molded article of the intermediate layer forming material in the step, an intermediate of processing the plating layer surface and the cavity forming part of a back plate having a metal or alloy plating layer formed on one surface. The friction layer is heated in a non-oxidizing atmosphere with the layer surface in close contact with the friction plate, the molded body of the friction material composition is formed as a friction plate, the molded body of the intermediate layer forming substance is formed as an intermediate layer, and the friction plate and the intermediate layer are formed. And bonding the plating layer and the back plate to each other, and forming the cavity forming portion as a cavity. A method for manufacturing a brake pad having excellent heat insulating properties and adhesiveness.
の成形体と、中間層を形成するための中間層形成物質の
成形体とを積層した積層成形体を得る工程、一面に金属
または合金のメッキ層を形成した裏板の該メッキ層側か
ら空洞部となるための空洞形成部を加工する工程、該メ
ッキ層上に該積層成形体を載置して非酸化性雰囲気中で
加熱し、該摩擦材組成物の成形体を摩擦板に、該中間層
形成物質の成形体を中間層にするとともに、該摩擦板と
該中間層と該メッキ層と該裏板とを固着接合し、該空洞
形成部が空洞部として形成される工程とを含むことを特
徴とする断熱性および接着性にすぐれたブレーキパッド
の製造方法。14. A step of obtaining a laminated molded product in which a molded product of a friction material composition for forming a friction plate and a molded product of an intermediate layer-forming substance for forming an intermediate layer are obtained. A step of processing a cavity forming portion for forming a cavity from the plating layer side of the back plate on which the alloy plating layer is formed, placing the laminated molded body on the plating layer and heating in a non-oxidizing atmosphere Then, the molded article of the friction material composition is used as a friction plate, and the molded article of the intermediate layer forming substance is used as an intermediate layer, and the friction plate, the intermediate layer, the plating layer, and the back plate are fixedly joined. Forming the cavity forming portion as a cavity portion. A method for manufacturing a brake pad having excellent heat insulating properties and adhesiveness.
の成形体と、中間層を形成するための中間層形成物質の
成形体とを積層した積層成形体を得る工程、該積層成形
体における該中間層形成物質の成形体に第１空洞部とな
るための第１空洞形成部を加工する工程、一面に金属ま
たは合金のメッキ層を形成した裏板の該メッキ層側から
第２空洞部となるための第２空洞形成部を加工する工
程、該メッキ層上に該積層成形体を載置して非酸化性雰
囲気中で加熱し、該摩擦材組成物の成形体を摩擦板に、
該中間層形成物質の成形体を中間層にするとともに、該
摩擦板と該中間層と該メッキ層と該裏板とを固着接合
し、該第１および第２の空洞形成部が第１および第２の
空洞部として形成される工程とを含むことを特徴とする
断熱性および接着性にすぐれたブレーキパッドの製造方
法。15. A step of obtaining a laminated molded article in which a molded article of a friction material composition for forming a friction plate and a molded article of an intermediate layer-forming substance for forming an intermediate layer are obtained. Forming a first cavity in the molded article of the intermediate layer forming material in step (a), forming a second cavity from a side of the backing plate having a metal or alloy plating layer formed on one surface thereof. Processing the second cavity forming part to become a part, placing the laminated molded body on the plating layer and heating in a non-oxidizing atmosphere, and forming the molded body of the friction material composition into a friction plate ,
The molded body of the intermediate layer forming material is used as an intermediate layer, and the friction plate, the intermediate layer, the plating layer, and the back plate are fixedly joined to each other, and the first and second cavity forming portions are first and second. Forming a brake pad having excellent heat insulating properties and adhesiveness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24932396A JPH1078065A (en) | 1996-08-30 | 1996-08-30 | Brake pad excellent in heat insulation and adhesive property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24932396A JPH1078065A (en) | 1996-08-30 | 1996-08-30 | Brake pad excellent in heat insulation and adhesive property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1078065A true JPH1078065A (en) | 1998-03-24 |
Family
ID=17191302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24932396A Pending JPH1078065A (en) | 1996-08-30 | 1996-08-30 | Brake pad excellent in heat insulation and adhesive property |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1078065A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061576A (en) * | 2017-03-09 | 2017-08-18 | 湖南博科瑞新材料有限责任公司 | A kind of powder metallurgy brake pad of EMUs |
-
1996
- 1996-08-30 JP JP24932396A patent/JPH1078065A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061576A (en) * | 2017-03-09 | 2017-08-18 | 湖南博科瑞新材料有限责任公司 | A kind of powder metallurgy brake pad of EMUs |
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