JPS61261387A - Friction material composition - Google Patents
Friction material compositionInfo
- Publication number
- JPS61261387A JPS61261387A JP10419085A JP10419085A JPS61261387A JP S61261387 A JPS61261387 A JP S61261387A JP 10419085 A JP10419085 A JP 10419085A JP 10419085 A JP10419085 A JP 10419085A JP S61261387 A JPS61261387 A JP S61261387A
- Authority
- JP
- Japan
- Prior art keywords
- friction material
- friction
- fibers
- material composition
- filler
- 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
- 239000002783 friction material Substances 0.000 title claims abstract description 25
- 239000000203 mixture Substances 0.000 title claims description 18
- 239000000835 fiber Substances 0.000 claims abstract description 25
- 239000000919 ceramic Substances 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000003607 modifier Substances 0.000 claims abstract description 7
- 239000011230 binding agent Substances 0.000 claims abstract description 6
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 6
- 239000010419 fine particle Substances 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 5
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 3
- 239000012209 synthetic fiber Substances 0.000 claims description 5
- 229920002994 synthetic fiber Polymers 0.000 claims description 5
- 239000011256 inorganic filler Substances 0.000 claims description 3
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 3
- 239000012766 organic filler Substances 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract description 4
- 239000000945 filler Substances 0.000 abstract description 4
- 239000005011 phenolic resin Substances 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010439 graphite Substances 0.000 abstract description 2
- 229910002804 graphite Inorganic materials 0.000 abstract description 2
- 239000012779 reinforcing material Substances 0.000 abstract 1
- 239000010425 asbestos Substances 0.000 description 7
- 229910052895 riebeckite Inorganic materials 0.000 description 7
- 239000004615 ingredient Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- YPMOSINXXHVZIL-UHFFFAOYSA-N sulfanylideneantimony Chemical compound [Sb]=S YPMOSINXXHVZIL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は自動車等に用いられる、ディスクブレーキパッ
ド、ブレーキライニング等の摩擦材組成物の改良に関す
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to improvements in friction material compositions for disc brake pads, brake linings, etc. used in automobiles and the like.
従来技術および発明が解決しようとする問題点従来ディ
スクブレーキパッド、ブレーキライニング等に使用され
る摩擦材料としては、アスベストと有機、無機の各種粉
末充填材および有機摩擦調整剤等にフェノール樹脂のよ
うな熱硬化性樹脂結合剤を加えて加熱硬化したものが用
いられている。しかし、アスベストについては近年アス
ベスト粉塵の有害性に関する議論が高まるにつれて、ア
スベストを使用しない摩擦材料の必要性が高くなってき
ている。アスベスト以外の繊維としては、金属繊維、セ
ラミック繊維、合成繊維などがあり、スチール繊維を使
用したものは、セミメタリックパッドと呼ばれ、一部実
用化されている。Prior Art and Problems to be Solved by the Invention Conventionally, friction materials used for disc brake pads, brake linings, etc. include asbestos, various organic and inorganic powder fillers, organic friction modifiers, and phenolic resins. A thermosetting resin binder added and heat-cured is used. However, in recent years, as the discussion regarding the harmfulness of asbestos dust has increased, the need for friction materials that do not use asbestos has increased. Fibers other than asbestos include metal fibers, ceramic fibers, synthetic fibers, etc. Pads using steel fibers are called semi-metallic pads, and some have been put into practical use.
このセミメタリックパッドは、アスベストパッドに比較
して耐摩耗性がすぐれている。摩擦係数が高い等の利点
があるが、その反面スチール繊維が潤滑剤と共に多量に
使用されているために、バンドの熱伝導性が高いために
、断熱層が必要、高速でのくり返り制動を行うと発火す
るといったような、従来のアスベストパッドには見られ
なかった不具合点が最近、市場で問題となっている。This semi-metallic pad has superior wear resistance compared to asbestos pads. It has advantages such as a high coefficient of friction, but on the other hand, because a large amount of steel fiber is used together with lubricant, the band has high thermal conductivity, so a heat insulating layer is required, and repetitive braking at high speeds is required. Recently, problems not seen with conventional asbestos pads, such as ignition when exposed to asbestos pads, have become a problem in the market.
本発明は、上記の事情に鑑みて熱伝導性を低くし、耐摩
耗性と高い摩擦係数を両立させるための摩擦材組成物を
提供することを目的とする。In view of the above circumstances, an object of the present invention is to provide a friction material composition that has low thermal conductivity and achieves both wear resistance and a high coefficient of friction.
問題を解決するため゛の手段
本発明者は、摩擦材組成物中の基材であるスチールファ
イバーをできるだけ使用せずにセラミックファイバー、
合成繊維に置き換え、更にセラミック粉末を少量添加し
たところ、従来のセミメタリックパッドの約１）５程度
の熱伝導率で、セミメタリックパッドと同等の耐摩耗性
、高い摩擦係数を持ったディスクブレーキパッド、ブレ
ーキライニング等の摩擦材組成物が得られることを見い
出した。即ち、補強用繊維材料、存機充填材、無機充填
材・金属粉および摩擦調整剤などを熱硬化性樹脂結合剤
で結合してなる摩擦材料において・最大粒径５μｍ以下
の微粒子の炭化珪素セラミック粉末を０．２〜２．０容
量％含有せしめてなる摩擦材組成物が秀れた物理的特性
を有することを見い出した。Means for Solving the Problem The present inventor has developed ceramic fibers, ceramic fibers, and steel fibers as a base material in friction material compositions.
By replacing it with synthetic fibers and adding a small amount of ceramic powder, we have created a disc brake pad that has a thermal conductivity of about 1)5 compared to conventional semi-metallic pads, and has the same wear resistance and high coefficient of friction as semi-metallic pads. It has been found that friction material compositions for brake linings and the like can be obtained. That is, in a friction material formed by bonding a reinforcing fiber material, an organic filler, an inorganic filler, a metal powder, a friction modifier, etc. with a thermosetting resin binder, fine particles of silicon carbide ceramic with a maximum particle size of 5 μm or less are used. It has been found that a friction material composition containing 0.2 to 2.0% by volume of powder has excellent physical properties.
本発明の摩擦材組成物は、基材としてはスチールファイ
バー５〜１５容量％、ＡＺｚＯｓ−５ｉＯ２系セラミツ
クフアイバ一５〜１５容量％、芳香族ポリアラミドパル
プ５〜３０容量％が使用され、フェノール樹脂結合剤、
黒鉛、硫化アンチモン等の潤滑剤を含有し、それに必要
に応じて銅粉等の金属粉、存機質摩擦調整剤、硫酸バリ
ウム等が添加される。The friction material composition of the present invention uses 5-15% by volume of steel fiber, 5-15% by volume of AZZOs-5iO2 ceramic fiber, 5-30% by volume of aromatic polyaramid pulp, and phenolic resin. binder,
It contains lubricants such as graphite and antimony sulfide, and metal powders such as copper powder, organic friction modifiers, barium sulfate, etc. are added as necessary.
本発明に使用される炭化珪素セラミック粉末は、最大粒
径５μｍ以下であることが必要であり、５μｍ以上では
パッド摩耗量及びディスク （相手材）攻撃性が急増し
、摩擦係数（μ）の安定性が著しく悪化し、本発明の目
的を達成することができない。The silicon carbide ceramic powder used in the present invention needs to have a maximum particle size of 5 μm or less; if it is 5 μm or more, the amount of pad wear and the aggressiveness of the disc (opposing material) will increase rapidly, and the coefficient of friction (μ) will stabilize. In this case, the properties are significantly deteriorated, and the object of the present invention cannot be achieved.
また、添加量においても０．２〜２．０容量％である必
要がある。２．０容量％を超えると相手攻撃性が著しく
増大し、μの安定性が悪化する、又０．２容量％以下で
は、スチールパッド並の高い摩擦係数が得られず、又高
温での耐摩耗性において、本発明の目的を達成できない
。Further, the amount added needs to be 0.2 to 2.0% by volume. If it exceeds 2.0% by volume, the aggressiveness of the opponent will increase significantly and the stability of μ will deteriorate, and if it is less than 0.2% by volume, it will not be possible to obtain a coefficient of friction as high as that of a steel pad, and the resistance at high temperatures will deteriorate. The object of the present invention cannot be achieved in terms of abrasion resistance.
以下実施例により本発明の詳細な説明する。The present invention will be explained in detail below with reference to Examples.
実施例
第１表に示す成分を配合し、混合機により均一に混合し
た。この混合組成物を所定量秤量し、面圧３００ ｋｇ
／ ｃｄ 、型温１６５℃、成型時間７分にセットし
た圧縮成型機にて成型した。その後さらに２００℃５時
間熱処理を行い、表面を研磨して、ディスクブレーキバ
ンドを得た。また比較例も第１表に示す成分を用いて、
実施例と同様の工程により製作した。Example The ingredients shown in Table 1 were blended and mixed uniformly using a mixer. A predetermined amount of this mixed composition was weighed, and a surface pressure of 300 kg was applied.
/ cd, a mold temperature of 165°C, and a molding time of 7 minutes. Thereafter, heat treatment was further performed at 200° C. for 5 hours, and the surface was polished to obtain a disc brake band. Comparative examples also used the ingredients shown in Table 1.
It was manufactured using the same process as in the example.
第 １ 表 （容量パーセント）得ら
れたディスクブレーキバンドをフルサイズブレーキダイ
ナモチスターにて、ＪＡＳＯ６９１４のテストコードに
て、試験を行った。Table 1 (Capacity Percentage) The obtained disc brake bands were tested using a full-size brake dynamometer using a JASO6914 test cord.
その結果を第２表に示す。The results are shown in Table 2.
第 ２ 表 尚、試験は次の諸元で行った。Table 2 The test was conducted using the following specifications.
キャリバー ： ＰＤ５１
ディスクロータ ： ２４３φ Ｘ１８ＶＫンチレーツ
イフＦデイスク）イナーシャ ： ５．５）［ｇｓ３
”テストコード： ＪＡＳＯ６９１４
又、熱伝導率の測定はテストピースを切り出しく１０１
φＸ １．２ｍ５ｔ）レーザーフラッシュ法で行った。Caliber: PD51 Disc rotor: 243φ
”Test code: JASO6914 Also, to measure thermal conductivity, cut out a test piece 101
φX 1.2m5t) Laser flash method was used.
発明の効果
本発明によればパッドの熱伝導率が従来のセミメタリッ
クバッドの約１）５程度で、しかもセミメタリックバン
ドと同等以上の高摩擦係数、耐摩耗性を有するディスク
ブレーキパッド材を得ることができる。Effects of the Invention According to the present invention, it is possible to obtain a disc brake pad material which has a thermal conductivity of about 1)5 that of a conventional semi-metallic pad, and has a high coefficient of friction and wear resistance equivalent to or higher than that of a semi-metallic band. be able to.
手続補正書
昭和６０年 ８月スρ日
１、事件の表示
昭和６０年特許願第１０４１９０号
２、発明の名称
摩 擦 材 組 成 物
３、補正をする者
事件との関係 特 許 出 願 人任 所
大阪市東区北浜５丁目１５番地名 称（２１３）
住友電気工業株式会社社 長 川 上 哲
部
４、代理人
住 所 大阪市此花区島屋１丁目１番３号住
友電気工業株式会社内
６、補正の対象
明細書中、特許請求の範囲の欄及び発明の詳細な説明の
欄７、補正の内容
（１）明細書の特許請求の範囲の欄を別紙の通り訂正す
る。Procedural amendment written on August 1, 1985, 1, Indication of case, 1985 Patent Application No. 104190, 2, Title of invention: Friction material composition 3, Person making the amendment, Relationship with the case, Patent applicant position
5-15 Kitahama, Higashi-ku, Osaka Name (213)
Satoshi Kawakami, President, Sumitomo Electric Industries, Ltd.
Part 4, Agent address: 6, Sumitomo Electric Industries, Ltd., 1-1-3 Shimaya, Konohana-ku, Osaka City, 6. In the specification subject to amendment, column 7 for claims and detailed description of the invention, amendment Contents (1) The claims section of the specification is corrected as shown in the attached sheet.
（２）明細書の発明の詳細な説明の欄の（ａ）第３頁第
６行目の「高いために」とあるのを「高くなり」と補正
する。(2) In the Detailed Explanation of the Invention column of the specification (a), in the 6th line of page 3, the phrase "to be expensive" is amended to read "to become expensive."
（ｂ）第３頁第９行目の「市場で」とあるのを削除する
。(b) Delete "in the market" on page 3, line 9.
（Ｃ）第６頁第１表の左端の欄の「珪素アルミニュウム
ファイバー」とあるのを「珪酸アルミニュウムファイバ
ー」と補正する。(C) "Silicon aluminum fiber" in the leftmost column of Table 1 on page 6 is corrected to "aluminum silicate fiber."
特許請求の範囲
「（１）補強用繊維材料、有機充填剤、無機充填剤、金
属粉および摩擦調整剤を熱硬化性樹脂結合剤で結合して
なる摩擦材料において、最大粒径５μｍ以下の微粒子の
炭化珪素セラミック粉末を０．２〜２．０容量％含有す
ることを特徴とする摩擦材組成物。Claims: ``(1) A friction material formed by bonding a reinforcing fiber material, an organic filler, an inorganic filler, a metal powder, and a friction modifier with a thermosetting resin binder, including fine particles with a maximum particle size of 5 μm or less. A friction material composition comprising 0.2 to 2.0% by volume of silicon carbide ceramic powder.
（２）補強用繊維材料が金属繊維、セラミック繊維およ
び合成繊維からなる群より選ばれた１種または２種以上
の繊維からなることを特徴とする特許請求の範囲第１項
記載の摩擦材組成物。(2) The friction material composition according to claim 1, wherein the reinforcing fiber material is made of one or more types of fibers selected from the group consisting of metal fibers, ceramic fibers, and synthetic fibers. thing.
（３） がスチール、ステンレスファイ
バーのいずれかもしくは両者であることを特徴とする特
許請求の範囲第１項記載の摩擦材組成物。3. The friction material composition according to claim 1, wherein (3) is steel, stainless fiber, or both.
（４） が Ａ込２０：
Ｓ −Ｓｉ Ｏｚから成ることを特徴とする特許請求の
範囲第１項記載の摩擦材組成物。(4) is 20 including A:
The friction material composition according to claim 1, characterized in that it consists of S-SiOz.
Claims (5)
粉および摩擦調整剤を熱硬化性樹脂結合剤で結合してな
る摩擦材料において、最大粒径５μｍ以下の微粒子の炭
化珪素セラミック粉末を０．２〜２．０容量％含有する
ことを特徴とする摩擦材組成物。(1) A friction material made by bonding a reinforcing fiber material, an organic filler, an inorganic filler, a metal powder, and a friction modifier with a thermosetting resin binder, including fine particles of silicon carbide ceramic powder with a maximum particle size of 5 μm or less. A friction material composition containing 0.2 to 2.0% by volume of.
び合成繊維からなる群より選ばれた１種または２種以上
の繊維からなることを特徴とする特許請求の範囲第１項
記載の摩擦材組成物。(2) The friction material composition according to claim 1, wherein the reinforcing fiber material is made of one or more types of fibers selected from the group consisting of metal fibers, ceramic fibers, and synthetic fibers. thing.
ずれかもしくは両者であることを特徴とする特許請求の
範囲第１項記載の摩擦材組成物。(3) The friction material composition according to claim 1, wherein the metal fibers are steel, stainless steel fibers, or both.
ら成ることを特徴とする特許請求の範囲第１項記載の摩
擦材組成物。(4) The friction material composition according to claim 1, wherein the ceramic fibers are made of Al_2O_3-SiO_2.
あることを特徴とする特許請求の範囲第１項記載の摩擦
材組成物。(5) The friction material composition according to claim 1, wherein the synthetic fiber is aromatic polyaramid fiber or pulp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10419085A JPS61261387A (en) | 1985-05-15 | 1985-05-15 | Friction material composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10419085A JPS61261387A (en) | 1985-05-15 | 1985-05-15 | Friction material composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61261387A true JPS61261387A (en) | 1986-11-19 |
Family
ID=14374065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10419085A Pending JPS61261387A (en) | 1985-05-15 | 1985-05-15 | Friction material composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61261387A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100576970B1 (en) | 2004-11-30 | 2006-05-10 | 한국타이어 주식회사 | Composition for steel-based friction material |
| US7297728B2 (en) * | 2003-07-02 | 2007-11-20 | Nisshinbo, Industries, Inc. | Friction material |
| CN102807842A (en) * | 2012-08-24 | 2012-12-05 | 董雪 | Friction material for automobile brake |
| CN103511512A (en) * | 2013-10-22 | 2014-01-15 | 宁波佳轩新材料有限公司 | Automobile brake pad |
| CN114736485A (en) * | 2022-04-14 | 2022-07-12 | 咸阳师范学院 | Resin-based ceramic friction material and preparation method and application thereof |
-
1985
- 1985-05-15 JP JP10419085A patent/JPS61261387A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7297728B2 (en) * | 2003-07-02 | 2007-11-20 | Nisshinbo, Industries, Inc. | Friction material |
| KR100576970B1 (en) | 2004-11-30 | 2006-05-10 | 한국타이어 주식회사 | Composition for steel-based friction material |
| CN102807842A (en) * | 2012-08-24 | 2012-12-05 | 董雪 | Friction material for automobile brake |
| CN103511512A (en) * | 2013-10-22 | 2014-01-15 | 宁波佳轩新材料有限公司 | Automobile brake pad |
| CN114736485A (en) * | 2022-04-14 | 2022-07-12 | 咸阳师范学院 | Resin-based ceramic friction material and preparation method and application thereof |
| CN114736485B (en) * | 2022-04-14 | 2023-09-19 | 咸阳师范学院 | Resin-based ceramic friction material and preparation method and application thereof |
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