JPH0238811B2 - - Google Patents
Info
- Publication number
- JPH0238811B2 JPH0238811B2 JP56132391A JP13239181A JPH0238811B2 JP H0238811 B2 JPH0238811 B2 JP H0238811B2 JP 56132391 A JP56132391 A JP 56132391A JP 13239181 A JP13239181 A JP 13239181A JP H0238811 B2 JPH0238811 B2 JP H0238811B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- friction material
- zinc
- rust
- 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
- 239000002783 friction material Substances 0.000 claims description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 11
- 150000003752 zinc compounds Chemical class 0.000 claims description 7
- 229910001369 Brass Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010951 brass Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 15
- 239000011701 zinc Substances 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 244000226021 Anacardium occidentale Species 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 235000020226 cashew nut Nutrition 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- -1 chlorine ions Chemical class 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 210000002268 wool Anatomy 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)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はドラムブレーキのライニング材、デス
クブレーキの摩擦パツド材等に用いられる自動車
用摩擦材に関し、更に具体的にはスチールウール
と軟鉄粉、還元鉄粉、真鍮粉および銅粉等の金属
粉を含むセミメタリツク系摩擦材の防錆対策に関
する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a friction material for automobiles used as a lining material for drum brakes, a friction pad material for desk brakes, etc. This invention relates to rust prevention measures for semimetallic friction materials containing metal powders such as reduced iron powder, brass powder, and copper powder.
従来、石綿繊維を補強材として含有する有機系
摩擦材が自動車用摩擦材として使用されてきた
が、高温（400℃以上）における摩耗特性を維持
する目的で最近ではスチールウール、鉄粉、黒鉛
等を主成分とし、フエノール、エポキシ、メラミ
ン等の熱硬化性樹脂を結合材としたセミメタリツ
ク系摩擦材（米国特許第3835118号、特開昭56−
65075号、特開昭55−157673号など）が広く実用
されてきた。
Conventionally, organic friction materials containing asbestos fibers as a reinforcing material have been used as friction materials for automobiles, but recently steel wool, iron powder, graphite, etc. have been used to maintain wear characteristics at high temperatures (over 400 degrees Celsius). Semi-metallic friction material whose main component is thermosetting resin such as phenol, epoxy, melamine, etc.
No. 65075, JP-A-55-157673, etc.) have been widely put into practical use.
しかしながら、このセミメタリツク系摩擦材は
鉄成分が多いため錆易く、特に降雪地では解雪用
に岩塩、塩化カルシウム等が使用されるため、こ
れらの塩素イオンがセミメタリツク系摩擦材の鉄
成分に作用し、錆を促進させ、特に摩擦材の内部
に錆が発生すると強度が著しく低下すると共に摩
耗が増大し、その錆が著しい場合には摩擦材の脱
落に繋がりかねない等の問題があつた。 However, this semi-metallic friction material is prone to rust due to its high iron content, and as rock salt, calcium chloride, etc. are used to melt snow, especially in snowy areas, these chlorine ions can cause the iron content of the semi-metallic friction material to deteriorate. In particular, if rust occurs inside the friction material, the strength will drop significantly and wear will increase, and if the rust is significant, the friction material may fall off. .
本発明はこのような問題を解決するためになさ
れたもので、スチール繊維と軟鉄粉、還元鉄粉、
真鍮粉および銅粉等の金属粉を含み、熱硬化性樹
脂を結合材とする自動車用ブレーキに使用される
セミメタリツク系摩擦材において、0.5〜15重量
％の亜鉛化合物を摩擦材の全配合成分中に分散さ
せて混入したことを特徴とする摩擦材とすること
によつて錆の発生を制御するようにしたものであ
る。
The present invention was made to solve such problems, and it uses steel fiber, soft iron powder, reduced iron powder,
In semi-metallic friction materials used in automobile brakes that contain metal powders such as brass powder and copper powder and have a thermosetting resin as a binder, 0.5 to 15% by weight of zinc compounds are included in the entire formulation of the friction material. The generation of rust is controlled by using a friction material which is characterized by being dispersed and mixed into the material.
一方、亜鉛は融点が420℃と低いため、高温で
使用される自動車用摩擦材ではフエード現象を悪
化させることがあり、亜鉛末又は亜鉛化合物の使
用に当つてはその使用温度により使用量を適宜設
定することが望ましい。即ち、400℃以上の高温
用としては亜鉛末又は亜鉛化合物の使用量を可能
な限り少なくすることが好ましく、400℃以下の
使用条件であれば大量に使用することが可能であ
る。
On the other hand, since zinc has a low melting point of 420°C, it may worsen the fading phenomenon in automotive friction materials used at high temperatures.When using zinc powder or zinc compounds, the amount used should be adjusted appropriately depending on the usage temperature. It is desirable to set this. That is, for high-temperature applications of 400°C or higher, it is preferable to use as little zinc powder or zinc compound as possible, and it is possible to use a large amount if the usage conditions are 400°C or lower.
他方、亜鉛末又は亜鉛化合物を摩擦材の全配合
成分中に分散させて混入することにより、摩擦材
の防錆だけではなく鉄系の摩擦相手材の錆特性を
も改良することにもなり、例えば輸出車の輸送中
の錆及び摩擦材の固着を防止し、輸送中のトラブ
ルの解消となる等の利点もある。 On the other hand, by dispersing and incorporating zinc powder or zinc compounds into all the components of the friction material, it not only prevents the friction material from rusting, but also improves the rust characteristics of the iron-based friction material. For example, it has the advantage of preventing rust and sticking of friction materials during transportation of export vehicles, and eliminating troubles during transportation.
セミメタリツク系摩擦材配合組成 （重量部）
Γスチール繊維 45
Γカシユーダスト ３
Γゴムダスト ３
Γ硫酸バリウム 15
Γ黒鉛 15
Γ金属粉 10
（軟鉄粉、還元鉄粉、真鍮粉、銅粉）
Γ三酸化アンチモン ２
Γフエノール樹脂 ７
上記配合に亜鉛末を１、５、８、10、12、15重
量％の範囲で添加して撹拌混合し、通常の熱プレ
スで加熱加圧成形し、更に結合材としての熱硬化
性樹脂の反応を完結させるため加熱を充分行なつ
た後、錆特性、フエード特性をテストした結果は
第１図に示す通りである。
Composition of semi-metallic friction material (parts by weight) Γ steel fiber 45 Γ cashew dust 3 Γ rubber dust 3 Γ barium sulfate 15 Γ graphite 15 Γ metal powder 10 (soft iron powder, reduced iron powder, brass powder, copper powder) Γ antimony trioxide 2 Γ Phenol Resin 7 Zinc powder was added to the above formulation in a range of 1, 5, 8, 10, 12, 15% by weight, stirred and mixed, heated and pressure molded using a normal hot press, and further added as a binder. After sufficient heating to complete the reaction of the thermosetting resin, the rust and fade characteristics were tested and the results are shown in FIG.
尚、錆特性のテスト方法は、本発明の摩擦材を
400℃の炉中で３時間加熱後、食塩水５％水溶液
中に１時間浸漬、１カ月間放置後、摩擦材表面及
び内部を研磨し観察したもので、フエード確認方
法は（JASOテストコードC406−74）による。 In addition, the rust characteristic test method was conducted using the friction material of the present invention.
After heating in an oven at 400℃ for 3 hours, immersing it in a 5% saline solution for 1 hour, and leaving it for 1 month, the surface and interior of the friction material were polished and observed.The fade confirmation method was (JASO test code C406). -74).
第１図に示すように、亜鉛末又は亜鉛化合物の
粉末等の亜鉛量が１％でも混入すると錆量が激減
し、錆特性が著しく向上する。これより亜鉛量
0.5重量％以上の添加で十分効果のあることが確
認された。又亜鉛量が15％程度まではフエードμ
はそれ程低下せず、しかも錆特性は更に向上する
ため有効なことが認められた。 As shown in FIG. 1, when even 1% of zinc is mixed in, such as zinc powder or zinc compound powder, the amount of rust is drastically reduced and the rust characteristics are significantly improved. From this amount of zinc
It was confirmed that addition of 0.5% by weight or more is sufficiently effective. Also, if the zinc content is up to about 15%, fade μ
It was found to be effective because the rust properties were not significantly reduced and the rust properties were further improved.
このテスト結果に示すように、本発明の摩擦材
は前述の如く摩擦材の使用温度により亜鉛量を
0.5〜15重量％の範囲で適宜設定されるものであ
る。 As shown in the test results, the friction material of the present invention can vary the amount of zinc depending on the temperature at which the friction material is used, as described above.
It is appropriately set in the range of 0.5 to 15% by weight.
以上のように本発明のセミメタリツク系摩擦材
は亜鉛末または亜鉛化合物の粉末を混入せしめる
ことによつて、フエードμを低下せずに錆特性を
向上せしめた極めて有用な摩擦材である。
As described above, the semimetallic friction material of the present invention is an extremely useful friction material that has improved rust characteristics without reducing the fade μ by incorporating zinc dust or zinc compound powder.
第１図は、本発明のセミメタリツク系摩擦材に
混入せしめた亜鉛量と、錆量及びフエードμとの
関係を示す図表である。
FIG. 1 is a chart showing the relationship between the amount of zinc mixed in the semimetallic friction material of the present invention, the amount of rust, and the amount of fade μ.
Claims (1)
よび銅粉等の金属粉を含み、熱硬化性樹脂を結合
材とする自動車用ブレーキに使用されるセミメタ
リツク系摩擦材において、0.5〜15重量％の亜鉛
末又は亜鉛化合物を摩擦材の全配合成分中に分散
させて混入したことを特徴とする摩擦材。1 Semi-metallic friction materials used in automobile brakes that contain steel fibers and metal powders such as soft iron powder, reduced iron powder, brass powder, and copper powder, and use thermosetting resin as a binder, with a weight of 0.5 to 15%. 1. A friction material characterized in that % of zinc powder or zinc compound is dispersed and mixed into all the ingredients of the friction material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13239181A JPS5834885A (en) | 1981-08-24 | 1981-08-24 | Semimetallic friction material |
| GB08224269A GB2107337A (en) | 1981-08-24 | 1982-08-24 | Semi-metallic friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13239181A JPS5834885A (en) | 1981-08-24 | 1981-08-24 | Semimetallic friction material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5834885A JPS5834885A (en) | 1983-03-01 |
| JPH0238811B2 true JPH0238811B2 (en) | 1990-09-03 |
Family
ID=15080282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13239181A Granted JPS5834885A (en) | 1981-08-24 | 1981-08-24 | Semimetallic friction material |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5834885A (en) |
| GB (1) | GB2107337A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9123009D0 (en) * | 1991-10-30 | 1991-12-18 | Ferodo Ltd | Improvements in or relating to brake pads |
| JP6247079B2 (en) * | 2013-11-12 | 2017-12-13 | 曙ブレーキ工業株式会社 | Friction material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56161428A (en) * | 1980-05-16 | 1981-12-11 | Aisin Seiki Co Ltd | Nonasbestos friction material |
-
1981
- 1981-08-24 JP JP13239181A patent/JPS5834885A/en active Granted
-
1982
- 1982-08-24 GB GB08224269A patent/GB2107337A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56161428A (en) * | 1980-05-16 | 1981-12-11 | Aisin Seiki Co Ltd | Nonasbestos friction material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5834885A (en) | 1983-03-01 |
| GB2107337A (en) | 1983-04-27 |
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