JPH0756310B2 - Friction material - Google Patents
Friction materialInfo
- Publication number
- JPH0756310B2 JPH0756310B2 JP60087207A JP8720785A JPH0756310B2 JP H0756310 B2 JPH0756310 B2 JP H0756310B2 JP 60087207 A JP60087207 A JP 60087207A JP 8720785 A JP8720785 A JP 8720785A JP H0756310 B2 JPH0756310 B2 JP H0756310B2
- Authority
- JP
- Japan
- Prior art keywords
- friction material
- asbestos
- material layer
- adhesive
- semi
- 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
Landscapes
- Braking Arrangements (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は非アスベスト系摩擦材層と裏金との接着部分の
改良された摩擦材に関する。Description: TECHNICAL FIELD The present invention relates to a friction material having an improved adhesion portion between a non-asbestos friction material layer and a back metal.
（従来の技術） デイスクブレーキパツド，ブレーキライニング等の摩擦
材は，摩擦材層と裏金とから構成され，両者をフエノー
ル，エポキシ，メラミン等の熱硬化性樹脂接着剤を用い
て接着していた。(Prior Art) A friction material such as a disc brake pad and a brake lining is composed of a friction material layer and a back metal, and both are adhered by using a thermosetting resin adhesive such as phenol, epoxy, melamine. .
（発明が解決しようとする問題点） しかしながらアスベスト公害及び性能向上のニーズより
出てきた非アスベスト系摩擦材，特にスチールフアイバ
ーを基材とするセミメタリック系デイスクブレーキパツ
ド（以下，セミメタパツドとする）の非アスベスト摩擦
材層は，熱伝導率がアスベストフアイバーを基材とする
デイスクブレーキパツドのアスベスト系摩擦材層に比較
し約３〜４倍大きいため，摩擦現象によつて生じた摩擦
熱が接着剤等に到達し易く，その温度も従来のフエノー
ル，エポキシ，メラミン等の熱硬化性樹脂の耐熱温度で
ある250〜300℃をこえ,300〜350℃に到達する場合があ
る。また、非アスベスト系摩擦材層は，その性格上上記
の温度に何回となく到達し，そのつど接着剤の熱劣化が
進み最悪の場合，裏金から剥離する欠点があつた。(Problems to be solved by the invention) However, non-asbestos friction materials that have emerged from needs for asbestos pollution and performance improvement, especially semi-metallic disc brake pads based on steel fibers (hereinafter referred to as semi-meta pads) The non-asbestos friction material layer of No. 3 has a thermal conductivity about 3 to 4 times as large as that of the asbestos friction material layer of the disc brake pad using asbestos fiber as a base material, so the friction heat generated by the friction phenomenon is generated. It is easy to reach adhesives, and the temperature may exceed 250 to 300 ℃, which is the heat resistant temperature of conventional thermosetting resins such as phenol, epoxy, and melamine, and may reach 300 to 350 ℃. In addition, the non-asbestos friction material layer has the disadvantage that it reaches the above temperature several times due to its nature, and the heat deterioration of the adhesive progresses each time, and in the worst case, it peels from the backing metal.
本発明は上記の欠点のない摩擦材を提供することを目的
とするものである。The present invention aims to provide a friction material that does not have the above-mentioned drawbacks.
（問題点を解決するための手段） 本発明者らは上記の欠点を解消すべく種々検討した結
果，アルカリ金属珪酸系バインダーを主成分とする無機
質接着剤を用いて非アスベスト系摩擦材層と裏金とを接
着したところ接着剤層の耐熱温度を500℃まで向上させ
ることができた。(Means for Solving the Problems) As a result of various investigations by the present inventors to solve the above-mentioned drawbacks, as a result, a non-asbestos friction material layer was formed using an inorganic adhesive containing an alkali metal silicate binder as a main component. When the backing metal was adhered, the heat resistant temperature of the adhesive layer could be increased to 500 ° C.
本発明は非アスベスト系摩擦材層と裏金とをアルカリ金
属珪酸塩系バインダーを主成分とする無機質接着剤を用
いて接着してなる摩擦材に関する。The present invention relates to a friction material obtained by bonding a non-asbestos-based friction material layer and a back metal with an inorganic adhesive containing an alkali metal silicate binder as a main component.
なお本発明においてアリカリ金属珪酸塩系バインダーを
主成分とする無機質接着剤としては，アルカリシリケー
ト〔M2O・xSiO2（ＭはNa・Ｋ・Li・R4N;xは整数）で示
される水溶性アルカリシリケートの水溶液〕例えば住友
化学製のスミセラム（商標名）−P,東亜合成化学製のア
ロンセラミック（商標名）−Ｃ等が用いられる。無機質
接着剤は従来の熱硬化性樹脂と併用して用いてもよい。In the present invention, the inorganic adhesive containing an alkaline metal silicate binder as a main component is represented by an alkali silicate [M 2 O · xSiO 2 (M is Na · K · Li · R 4 N; x is an integer). Aqueous Solution of Water-Soluble Alkali Silicate] For example, Sumiceram (trade name) -P manufactured by Sumitomo Chemical, Aron Ceramic (trade name) -C manufactured by Toagosei Co., Ltd. and the like are used. The inorganic adhesive may be used in combination with a conventional thermosetting resin.
本発明の摩擦材層を構成する摩擦材料は非アスベスト系
摩擦材料が用いられる。As the friction material forming the friction material layer of the present invention, a non-asbestos friction material is used.
（実施例） 以下実施例により本発明を説明する。(Example) Hereinafter, the present invention will be described with reference to an example.
実施例１ デイスクブレーキパツド用裏金の表面をブラストマシー
ンによつて梨地状に形成し，ついで表面に付着している
油脂，梨地状の形成に用いられた細かい粉末粒子残留物
等をトリクロールエチレンを用いて完全に除去した。そ
の後前記梨地状に形成した裏金の非アスベスト系摩擦材
層を接着する側の表面に，無機質接着剤として住友化学
製のスミセラム（商標名）−Ｐをスプレーガンにて12±
８μｍの厚さに吹き付けた。ついで110±10℃の温度で2
0分間乾燥した。その後スチールフアイバー，黒鉛,BaSO
4,Al2O3及びフエノール樹脂（日立化成工業製，商品名N
MX−1208）を均一に混合し,80℃で１時間乾燥して得た
摩擦材料未硬化物を，無機質接着剤を吹き付けた側の裏
金の表面にのせ，所定の金型で圧力500kg/cm2,温度150
±10℃で５分間加熱加圧成形した。ついで180℃で５時
間熱処理し，冷却後所定の厚みに研磨して非アスベスト
系摩擦材層と裏金とを接着したセミメタパツドを得た。Example 1 The surface of a back metal for a disc brake pad was formed into a satin-like shape by a blast machine, and then the oil and fat adhering to the surface, the fine powder particle residue used for forming the satin-like shape, etc. Completely removed. After that, Sumicerum (trade name) -P made by Sumitomo Chemical Co., Ltd. as an inorganic adhesive is applied to the surface of the backing metal formed in a satin-like shape on the side where the non-asbestos friction material layer is adhered by a spray gun 12
It was sprayed to a thickness of 8 μm. Then 2 at the temperature of 110 ± 10 ℃
Dry for 0 minutes. After that, steel fiber, graphite, BaSO
4 , Al 2 O 3 and phenol resin (Hitachi Chemical Co., Ltd., trade name N
MX-1208) was uniformly mixed and dried for 1 hour at 80 ° C. The uncured friction material was placed on the surface of the backing metal on the side where the inorganic adhesive was sprayed, and the pressure was 500kg / cm with a predetermined mold. 2 , temperature 150
Molded by heating and pressing at ± 10 ° C for 5 minutes. Then, it was heat-treated at 180 ° C. for 5 hours, cooled, and then polished to a predetermined thickness to obtain a semi-metapad in which the non-asbestos-based friction material layer and the backing metal were adhered.
実施例２ 実施例１と同じ無機質接着剤を吹き付けた上面にワニス
状フエノール樹脂（横浜ゴム製，商品名A344B）をスプ
レーガンにて12±８μｍの厚さに吹き付けた以外は，実
施例１と同様の方法及び工程を経て非アスベスト系摩擦
材層と裏金とを接着したセミメタパツドを得た。Example 2 Example 1 except that a varnish-like phenol resin (manufactured by Yokohama Rubber, trade name A344B) was sprayed on the upper surface sprayed with the same inorganic adhesive as in Example 1 with a spray gun to a thickness of 12 ± 8 μm. A semi-meta pad in which the non-asbestos-based friction material layer and the backing metal were adhered was obtained through the same method and steps.
次に上記の実施例で得たセミメタパツドと従来の方法で
得たセミメタパツド（接着剤として実施例２で用いたワ
ニス状フエノール樹脂使用）とについて350℃に加熱し
た炉中に一定時間入れ，接着劣化試験を行なつた。その
結果を第１図に示す。なお第１図において接着面積は,3
50℃で一定時間熱り歴を受けさせたセミメタパツドを炉
外に出し，充分に冷却したのちアムスラー試験機で剪断
したとき裏金表面に残存した摩擦材面積の裏金面積に対
する比率を示す数値であり，この数値が高い程，接着剤
の裏金と非アスベスト系摩擦材層との接着効果が高いこ
とを示す。上記の試験の結果，従来の接着剤を用いて非
アスベスト系摩擦材層と裏金とを接着したセミメタパツ
ドはわずか１時間の熱処理で接着面積は０％となつた。
これに対し本発明になるセミメタパツドに用いられた接
着剤はすぐれた耐熱性を示す。Next, the semi-metapad obtained in the above example and the semi-metapad obtained by the conventional method (using the varnish-like phenol resin used in the example 2 as an adhesive) were placed in a furnace heated to 350 ° C. for a certain period of time to cause adhesion deterioration. I took the test. The results are shown in FIG. In Fig. 1, the adhesion area is 3
It is a numerical value showing the ratio of the friction material area remaining on the back metal surface to the back metal area when the semi-metapad that had been heated for a certain period of time at 50 ° C was taken out of the furnace, sufficiently cooled and then sheared by the Amsler tester. The higher this value, the higher the adhesive effect between the backing of the adhesive and the non-asbestos-based friction material layer. As a result of the above-mentioned test, the semi-metapad in which the non-asbestos-based friction material layer and the backing metal were adhered by using the conventional adhesive was found to have an adhesion area of 0% by heat treatment for only 1 hour.
On the other hand, the adhesive used in the semi-metapad according to the present invention exhibits excellent heat resistance.
（発明の効果） 本発明によれば非アスベスト系摩擦材層と裏金とを接着
する接着剤は耐熱性にすぐれるため，接着剤層の温度が
350℃に達しても非アスベスト系摩擦材層と裏金とが簡
単に剥離しない摩擦材を提供することができる。(Advantageous Effects of the Invention) According to the present invention, since the adhesive for bonding the non-asbestos-based friction material layer and the back metal has excellent heat resistance, the temperature of the adhesive layer is
It is possible to provide a friction material in which the non-asbestos friction material layer and the backing metal do not easily separate even when the temperature reaches 350 ° C.
第１図は350℃処理時間とセミメタパツドの非アスベス
ト系摩擦材層と裏金の接着面積との関係を示すグラフで
ある。 符号の説明 １……従来のセミメタパツド ２……実施例１で得たセミメタパツド ３……実施例２で得たセミメタパツドFIG. 1 is a graph showing the relationship between the treatment time at 350 ° C. and the adhesive area between the non-asbestos friction material layer of the semi-metapad and the back metal. DESCRIPTION OF SYMBOLS 1 ... Conventional semi-metapad 2 ... Semi-metapad obtained in Example 1 3 ... Semi-metapad obtained in Example 2
Claims (1)
リ金属珪酸塩系バインダーを主成分とする無機質接着剤
を用いて接着してなる摩擦材。1. A friction material comprising a non-asbestos friction material layer and a backing metal bonded together by using an inorganic adhesive containing an alkali metal silicate binder as a main component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60087207A JPH0756310B2 (en) | 1985-04-23 | 1985-04-23 | Friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60087207A JPH0756310B2 (en) | 1985-04-23 | 1985-04-23 | Friction material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61244935A JPS61244935A (en) | 1986-10-31 |
| JPH0756310B2 true JPH0756310B2 (en) | 1995-06-14 |
Family
ID=13908507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60087207A Expired - Lifetime JPH0756310B2 (en) | 1985-04-23 | 1985-04-23 | Friction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0756310B2 (en) |
Family Cites Families (2)
| 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 |
| JPS55138006A (en) * | 1979-04-12 | 1980-10-28 | Akebono Brake Ind Co Ltd | Preparation of sintered friction material |
-
1985
- 1985-04-23 JP JP60087207A patent/JPH0756310B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61244935A (en) | 1986-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2536183A (en) | Preparation of surfaces for adhesion | |
| US5535858A (en) | Brake friction pad assembly | |
| US20090032569A1 (en) | Friction welding method and products made using the same | |
| JPH06511069A (en) | Friction lining and friction lining manufacturing method | |
| JPS6220918A (en) | Clutch disk and manufacture thereof | |
| JP2756110B2 (en) | Friction brake subassembly | |
| JPH0756310B2 (en) | Friction material | |
| EP0254827A3 (en) | A process of attaching a friction lining to a metal backing plate to produce brake lining | |
| JPS63318331A (en) | Method of covering supporter with synthetic resin-coupled friction lining | |
| US5434211A (en) | Heat-curable adhesive | |
| US1620043A (en) | Means and method for attaching nonmetallic facings to working-clutch members | |
| JPS62180126A (en) | Friction material | |
| JPH07208521A (en) | Brake assembly | |
| JPH05125357A (en) | Friction material | |
| JP3797464B2 (en) | Friction material composition and friction material using friction material composition | |
| JPS6362926A (en) | Friction material | |
| JPS63167134A (en) | Friction material and its manufacture | |
| JPH05331297A (en) | Produciton of friction material | |
| JPS6140874A (en) | Adhesive for ceramic member and bonding method | |
| CN109780105A (en) | A kind of low noise durable type brake block and preparation method thereof | |
| JPS57117537A (en) | Preparation of pad for frictional sliding | |
| JPH03239784A (en) | Friction material composition and manufacture of friction material therefrom | |
| JPH0351526A (en) | Manufacture of piston for disc brake | |
| JPS6367436A (en) | Friction material composition | |
| JPH11230208A (en) | Back metal for disk brake pad and manufacture thereof, and disk brake pad using the disc brake pad |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |