JPH03210338A - Production of friction material - Google Patents
Production of friction materialInfo
- Publication number
- JPH03210338A JPH03210338A JP473390A JP473390A JPH03210338A JP H03210338 A JPH03210338 A JP H03210338A JP 473390 A JP473390 A JP 473390A JP 473390 A JP473390 A JP 473390A JP H03210338 A JPH03210338 A JP H03210338A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- water
- mixing
- parts
- mixed
- 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 description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000005011 phenolic resin Substances 0.000 claims description 28
- 239000002994 raw material Substances 0.000 claims description 27
- 238000002156 mixing Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 15
- 239000000920 calcium hydroxide Substances 0.000 claims description 15
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 15
- 239000007864 aqueous solution Substances 0.000 claims description 13
- 239000011230 binding agent Substances 0.000 claims description 12
- 229920001568 phenolic resin Polymers 0.000 claims description 12
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 235000021355 Stearic acid Nutrition 0.000 claims description 9
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 9
- 239000008117 stearic acid Substances 0.000 claims description 9
- -1 stearic acid compound Chemical class 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000003607 modifier Substances 0.000 claims description 4
- 239000012784 inorganic fiber Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 claims 2
- 239000000428 dust Substances 0.000 description 12
- 238000005204 segregation Methods 0.000 description 9
- 238000001035 drying Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000002845 discoloration Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000005871 repellent Substances 0.000 description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 244000226021 Anacardium occidentale Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 description 1
- 229940063655 aluminum stearate Drugs 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 235000020226 cashew nut Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229960001701 chloroform Drugs 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野〕
本発明は鉄道、トラック、乗用車等のブレーキその他回
転する物体を停止するためのクラッチ等に用いる摩擦材
の製造方法に関するものであり、特に作業環境改善に有
効な摩擦材の製造方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing a friction material used in brakes of trains, trucks, passenger cars, etc., and clutches for stopping rotating objects, and in particular, This invention relates to a method for producing friction materials that are effective for improving the environment.
Ｃ従来の技術及び解決しようとする課題］ブレーキ、ク
ラッチ等の摩擦材がミネラルファイバー（スラグウール
）、スチールファイバー、ガラス繊維、セラミックファ
イバー等あるいはそれらを複合した無機ファイバーを単
独で、若しくはアラミド繊維等の有機ファイバーと複合
したものをファイバー基材とし、グラフ１イト、硫酸バ
リウム等の摩擦調整材、ゴム粉、カシューダスト等の充
填材、フェノール樹脂等のバインダーレジンと共に混合
し、加熱、加圧、成形することにより製造されることは
よく知られている。C. Conventional technology and problems to be solved] Friction materials for brakes, clutches, etc. are made of mineral fiber (slag wool), steel fiber, glass fiber, ceramic fiber, etc., or a combination of these inorganic fibers, or aramid fibers, etc. A composite of organic fibers is used as a fiber base material, and it is mixed with friction modifiers such as graphite and barium sulfate, fillers such as rubber powder and cashew dust, and binder resins such as phenolic resin, heated, pressurized, It is well known that it can be manufactured by molding.
ところでこれら摩擦材の原料には微粉状のものが多いた
め原料混合時及び混合物乾燥時に粉塵が発生して作業環
境の悪化を来し、又原料を混合した場合に粒の大きなも
のは底にたまって偏析し、均質なものができないという
欠点がある。この粉塵発生及び偏析という欠点に対し、
従来より原料混合時にアルコール、トリクレン、アセト
ン、フロン等を溶剤として投入することが行われている
。しかし、アルコールは爆発、火災等の危険性を有して
おり、トリクレン、アセトン、フロン等はいずれも人体
や環境に及ぼす影響が問題となっていた。又、別の方法
として溶剤として水を用いることが考えられるが、水だ
けでは混合時の粉塵及び偏析の発生は抑えられるものの
乾燥後はなお粉塵及び偏析が発生するという問題があっ
た。However, since many of the raw materials for these friction materials are in the form of fine powder, dust is generated when the raw materials are mixed and when the mixture is dried, resulting in a deterioration of the working environment.Also, when the raw materials are mixed, large particles accumulate at the bottom. The disadvantage is that it segregates and cannot be made homogeneously. Against this drawback of dust generation and segregation,
Conventionally, alcohol, trichloromethane, acetone, fluorocarbon, etc., have been added as solvents when mixing raw materials. However, alcohol has risks such as explosion and fire, and trichlene, acetone, fluorocarbons, etc. all have problems with their effects on the human body and the environment. Another method is to use water as a solvent, but although water alone can suppress the generation of dust and segregation during mixing, there is a problem in that dust and segregation still occur after drying.
さらに、通常摩擦材はサビ対策のため水酸化カルシウム
を含ませることによりアルカリ性となっているが、その
一方でバインダーレジンとして用いられるフェノール樹
脂はアルカリ性水溶液中では赤色変化を起こす。このた
め原料混合時に水を加えると水酸化カルシウムが溶は出
し、アルカリ性水溶液となってバインダーレジンである
フェノール樹脂が赤変劣化するという問題があった。Furthermore, friction materials are usually made alkaline by containing calcium hydroxide to prevent rust, but on the other hand, phenolic resins used as binder resins turn red in alkaline aqueous solutions. For this reason, when water is added when mixing raw materials, calcium hydroxide is leached out and becomes an alkaline aqueous solution, which causes the phenolic resin that is the binder resin to redden and deteriorate.
［課題を解決するための手段］
本発明は前記課題を解決するためになされたものでファ
イバー基材、摩擦調整材、充填材、並びにバインダーレ
ジンを原料として混合し、加熱、加圧、成形する摩擦材
の製造方法において、前記原料混合の際、前記バインダ
ーレジンに用いられるフェノール樹脂とは異なる水溶性
のフェノール樹脂を所定１度の水溶液とし、これを水分
量が前記原料に対して所定の重量比となるように加える
ことにある。[Means for Solving the Problems] The present invention has been made to solve the above-mentioned problems, and involves mixing a fiber base material, a friction modifier, a filler, and a binder resin as raw materials, heating, pressurizing, and molding the mixture. In the method for manufacturing a friction material, when mixing the raw materials, a water-soluble phenol resin different from the phenol resin used for the binder resin is made into a predetermined aqueous solution, and the water content of this is a predetermined weight relative to the raw materials. It consists in adding so that it becomes a ratio.
又、前記充填材としてステアリン酸化合物によりコーテ
ィング処理された水酸化カルシウムを用い、かつ前記所
定のフェノール樹脂水溶液を加えることにある。Further, calcium hydroxide coated with a stearic acid compound is used as the filler, and the predetermined phenol resin aqueous solution is added.
［作用］
本発明において前記の原料混合時に所定のフェノール樹
脂水溶液を加えることは粉塵発生及び偏析の防止として
作用する。これはフェノール樹脂水溶液を加えることで
該水溶液中の水溶性フェノール樹脂が結合剤として働き
、混合中に・原料粉末が凝集して粒状となるためである
。この原料粉末が凝集した粒状物の大きさ、特性はフェ
ノール樹脂水溶液の濃度及び原料に対する水分量によっ
て異なる。ここでフェノール樹脂水溶液の濃度とは水溶
性フェノール樹脂（固型分）と水の合計重量にしめる水
溶性フェノール樹脂（固型分）の重量比率をいい、原料
に対する水分量とは原料１００重量部に対するフェノー
ル樹脂水溶液中の水の量（固型分の水溶性）萬ノール樹
脂の重量を除いたもの）を重量部で表わしたものをいう
。[Function] In the present invention, adding a predetermined aqueous phenolic resin solution during the mixing of the raw materials serves to prevent dust generation and segregation. This is because when an aqueous phenol resin solution is added, the water-soluble phenol resin in the aqueous solution acts as a binder, and the raw material powder aggregates and becomes granular during mixing. The size and characteristics of the granular particles formed by agglomerating the raw material powder vary depending on the concentration of the phenol resin aqueous solution and the amount of water relative to the raw material. Here, the concentration of the phenolic resin aqueous solution refers to the weight ratio of the water-soluble phenol resin (solid content) to the total weight of the water-soluble phenol resin (solid content), and the water content relative to the raw material is the weight ratio of the water-soluble phenol resin (solid content) to the total weight of water. It refers to the amount of water in an aqueous phenolic resin solution (the water solubility of the solid content, excluding the weight of the phenol resin) expressed in parts by weight.
まず前記濃度についてであるが、２重量％より低いと原
料粉末の結合力が十分でないため乾燥時に粉塵が発生す
る。又２０重量％を超えると混合物が硬くなりすぎ成形
時に所定の形状にすることができない。First, regarding the above concentration, if it is lower than 2% by weight, the binding strength of the raw material powder is insufficient and dust will be generated during drying. Moreover, if it exceeds 20% by weight, the mixture becomes too hard and cannot be formed into a predetermined shape during molding.
次に前記水分量についてであるが原料１００重量部に対
してフェノール樹脂水溶液中の水の量が１０重量部より
少いと原料粉末は凝集せず粉末のままで粒状にならない
。又５０重量部を超えると泥状になり乾燥後粉砕工程が
必要となる。Next, regarding the amount of water, if the amount of water in the aqueous phenolic resin solution is less than 10 parts by weight relative to 100 parts by weight of the raw material, the raw material powder will not aggregate and will remain powder and will not become granular. If it exceeds 50 parts by weight, it becomes muddy and requires a pulverization step after drying.
又、充填材として用いる水酸化カルシウムのステアリン
酸化合物によるコーティング処理はバインダーレジンで
あるフェノール樹脂の赤変劣化防止として作用する。既
に述べたように通常摩擦材は水酸化カルシウムを含みア
ルカリ性となっているが、そのためフェノール樹脂はア
ルカリ性水溶液中では赤色変化してしまう。そこで撥水
性のあるステアリン酸化合物で水酸化カルシウムをコー
ティング処理し、前記原料混合時に加えるフェノール樹
脂水溶液中に水酸化カルシウムが溶は出さないようにし
た。コーティングの方法はステアリン酸化合物を溶かす
溶剤（例えばアセトン・アルコール等）に所定量のステ
アリン酸化合物をとかし、そこへ水酸化カルシウムを投
入する。これを充分撹拌した後自然乾燥あるいは加熱に
より溶剤を揮発させることにより行なう。この場合コー
テイング材は撥水性のあるステアリン酸化合物であれば
何でもよいが一般に安全性の高いステアリン酸亜鉛、あ
るいはステアリン酸アルミニウムが望ましい。又コーテ
ィングするステアリン酸化合物の量としては水酸化カル
シウム１００重量部に対しステアリン酸化合物５乃至３
０重量部が望ましい。これは５重量部より少いと撥水効
果が弱く、３０重量部より多いと摩擦特性に影響がでる
ことに基づく。Furthermore, the coating treatment of calcium hydroxide used as a filler with a stearic acid compound acts to prevent the deterioration of the phenol resin, which is the binder resin, from turning red. As already mentioned, friction materials usually contain calcium hydroxide and are alkaline, but for this reason, phenolic resin turns red in an alkaline aqueous solution. Therefore, calcium hydroxide was coated with a water-repellent stearic acid compound to prevent the calcium hydroxide from dissolving into the aqueous phenol resin solution added when mixing the raw materials. The coating method involves dissolving a predetermined amount of stearic acid compound in a solvent that dissolves the stearic acid compound (eg, acetone, alcohol, etc.), and then adding calcium hydroxide thereto. This is carried out by thoroughly stirring and then evaporating the solvent by natural drying or heating. In this case, the coating material may be any water-repellent stearic acid compound, but generally highly safe zinc stearate or aluminum stearate is preferred. The amount of stearic acid compound to be coated is 5 to 3 parts by weight per 100 parts by weight of calcium hydroxide.
0 parts by weight is desirable. This is based on the fact that if the amount is less than 5 parts by weight, the water repellent effect will be weak, and if it is more than 30 parts by weight, the frictional characteristics will be affected.
［実施例コ
以下に示す実施例に基づいて比較例と対比しつつ本発明
の説明をする。実施例、比較例に用いる試料Ａの原料成
分及び分量を表１に示す。[Example] The present invention will be explained based on the following example and in comparison with a comparative example. Table 1 shows the raw material components and amounts of Sample A used in Examples and Comparative Examples.
表
（比較例１）
上記試料Ａを高速回転羽根を有するアイリッヒミキサー
によってｌＯ分間混合したもの（Ａ−１）。Table (Comparative Example 1) Sample A was mixed for 10 minutes using an Eirich mixer with high-speed rotating blades (A-1).
（比較例２）
前記ミキサーで試料Ａを５分間混合した後、水を試料Ａ
に対し３０重量部加えてさらにＳ分間混合したもの（Ａ
−２）。(Comparative Example 2) After mixing sample A with the mixer for 5 minutes, water was added to sample A.
30 parts by weight was added to the mixture and mixed for an additional S minute (A
-2).
（実施例１）
前記ミキサーで試料Ａを５分間混合した後、濃度１０重
量％のフェノール樹脂水溶液を試料Ａに対し水分量が３
０重量部となるよう加えて５分間混合したもの（Ａ −
３）。(Example 1) After mixing sample A with the mixer for 5 minutes, a phenol resin aqueous solution with a concentration of 10% by weight was added to sample A with a water content of 3%.
0 parts by weight and mixed for 5 minutes (A-
3).
（実施例２）
試料Ａのうち水酸化カルシウムは水酸化カルシウム１０
０重量部に対し２０重量部のステアリン酸亜鉛をコーテ
ィングしたものを用い前記実施例１と同様に混合したも
の（Ａ−４）。(Example 2) Calcium hydroxide in sample A was calcium hydroxide 10
0 parts by weight to 20 parts by weight of zinc stearate coated and mixed in the same manner as in Example 1 (A-4).
上記比較例及び実施例の試料を各々Ａ−１、Ａ−２、Ａ
−３、Ａ−４としそれぞれについて混合時及び４８時間
室内放置にて乾燥したときの状態を調べた。その結果を
表２に示す。尚、粉塵、偏析、赤変が発生した場合を×
で発生しなかった場合を０で示している。The samples of the above comparative example and example were A-1, A-2, and A, respectively.
-3 and A-4, and the conditions were examined when they were mixed and when they were left indoors for 48 hours to dry. The results are shown in Table 2. In addition, if dust, segregation, or red discoloration occurs,
0 indicates that no occurrence occurred.
表 ２
表２に示すように試料混合時に何も加えなかったＡ−１
はバインダーレジンの赤変はみられなかったものの混合
時、乾燥後を問わず粉塵、偏析の発生がみられる。又試
料混合時水のみを加えたＡ−２では混合時の問題は解消
したものの、乾燥後は粉塵、偏析、赤変が発生した。Table 2 A-1 to which nothing was added during sample mixing as shown in Table 2
Although no red discoloration of the binder resin was observed, dust and segregation were observed both during mixing and after drying. In A-2, in which only water was added during sample mixing, the problems during mixing were resolved, but dust, segregation, and red discoloration occurred after drying.
一方、試料混合時にフェノール樹脂水溶液を加えたＡ−
３では混合時及び乾燥後の粉塵、偏析の発生が抑えられ
、前記水溶液中の水溶性フェノール樹脂が結合剤として
働いていることが確められた。もっともバインダーレジ
ンであるフェノール樹脂の赤変は発生している。最後に
水酸化カルシウムはステアリン酸亜鉛をコーティングし
たものを用いかつ原料混合時にフェノール樹脂水溶液を
加えたＡ−４では混合時、乾燥後共に全ての問題点が解
消され、ステアリン酸亜鉛のコーティングにより水酸化
カルシウムの溶は出しが抑えられていることが確められ
た。On the other hand, A-
In No. 3, the occurrence of dust and segregation during mixing and after drying was suppressed, and it was confirmed that the water-soluble phenol resin in the aqueous solution was working as a binder. However, red discoloration of phenolic resin, which is a binder resin, has occurred. Finally, in A-4, calcium hydroxide was coated with zinc stearate and a phenol resin aqueous solution was added when mixing the raw materials, all problems were solved both during mixing and after drying. It was confirmed that the dissolution of calcium oxide was suppressed.
［発明の効果］
以上説明したように本発明は水溶性フェノール樹脂に溶
剤として人体、環境への影響がない水を用いることによ
り粉塵発生を防止でき作業環境改善に有効である。さら
に、原料の偏析を防止するとともに溶剤として水を用い
た場合の問題点であるフェノール樹脂の赤変劣化をその
原料として配される水酸化カルシウムをステアリン酸化
合物で表面処理することで解消でき高品質な摩擦材の作
製が可能となる。[Effects of the Invention] As explained above, the present invention is effective in improving the working environment by preventing the generation of dust by using water as a solvent for the water-soluble phenol resin, which does not affect the human body or the environment. Furthermore, in addition to preventing the segregation of raw materials, surface treatment of calcium hydroxide, which is used as a raw material, with a stearic acid compound eliminates the red discoloration of phenolic resin, which is a problem when using water as a solvent. It becomes possible to produce high-quality friction materials.
Claims (2)
ーから選択したファイバー基材、摩擦調整材、充填材、
並びにバインダーレジンを原料として混合し、加熱、加
圧、成形する摩擦材の製造方法において、前記原料を混
合する際に濃度２乃至２０重量％の水溶性フェノール樹
脂水溶液を水分量が原料１００重量部に対して１０乃至
５０重量部となるように加え、混合することを特徴とす
る摩擦材の製造方法。(1) Fiber base material selected from inorganic fibers, organic fibers, and metal fibers, friction modifiers, fillers,
In addition, in a method for manufacturing a friction material in which binder resin is mixed as a raw material, heated, pressurized, and molded, when mixing the raw materials, a water-soluble phenolic resin aqueous solution with a concentration of 2 to 20% by weight is mixed with a water content of 100 parts by weight of the raw material. A method for producing a friction material, the method comprising: adding 10 to 50 parts by weight to a friction material and mixing.
ーから選択したファイバー基材、摩擦調整材、少くとも
一部に水酸化カルシウムを用いた充填材、並びにバイン
ダーレジンを原料として混合し、加熱、加圧、成形する
摩擦材の製造方法において、前記水酸化カルシウムはス
テアリン酸化合物で表面処理したものであって、前記原
料を混合する際に濃度２乃至２０重量％の水溶性フェノ
ール樹脂水溶液を水分量が原料１００重量部に対して１
０乃至５０重量部となるように加え、混合することを特
徴とする摩擦材の製造方法。(2) A fiber base material selected from inorganic fibers, organic fibers, and metal fibers, a friction modifier, a filler containing at least a portion of calcium hydroxide, and a binder resin are mixed as raw materials, heated, pressurized, In the method for producing a molded friction material, the calcium hydroxide is surface-treated with a stearic acid compound, and when mixing the raw materials, a water-soluble phenolic resin aqueous solution with a concentration of 2 to 20% by weight is mixed with a water content of the raw material. 1 per 100 parts by weight
A method for producing a friction material, the method comprising adding and mixing in an amount of 0 to 50 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP473390A JPH03210338A (en) | 1990-01-13 | 1990-01-13 | Production of friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP473390A JPH03210338A (en) | 1990-01-13 | 1990-01-13 | Production of friction material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03210338A true JPH03210338A (en) | 1991-09-13 |
Family
ID=11592105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP473390A Pending JPH03210338A (en) | 1990-01-13 | 1990-01-13 | Production of friction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03210338A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4573489B2 (en) * | 2000-02-07 | 2010-11-04 | 名古屋油化株式会社 | Molding materials and moldings |
| WO2012077499A1 (en) * | 2010-12-08 | 2012-06-14 | 株式会社アドヴィックス | Method for manufacturing friction material |
| WO2015072440A1 (en) * | 2013-11-12 | 2015-05-21 | 曙ブレーキ工業株式会社 | Friction material |
| CN107709504A (en) * | 2015-06-19 | 2018-02-16 | 株式会社爱德克斯 | Non-asbestos friction material |
-
1990
- 1990-01-13 JP JP473390A patent/JPH03210338A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4573489B2 (en) * | 2000-02-07 | 2010-11-04 | 名古屋油化株式会社 | Molding materials and moldings |
| WO2012077499A1 (en) * | 2010-12-08 | 2012-06-14 | 株式会社アドヴィックス | Method for manufacturing friction material |
| JP2012121991A (en) * | 2010-12-08 | 2012-06-28 | Advics Co Ltd | Method for manufacturing friction material |
| US8894899B2 (en) | 2010-12-08 | 2014-11-25 | Advics Co., Ltd. | Method of producing friction material |
| WO2015072440A1 (en) * | 2013-11-12 | 2015-05-21 | 曙ブレーキ工業株式会社 | Friction material |
| US10190649B2 (en) | 2013-11-12 | 2019-01-29 | Akebono Brake Industry Co., Ltd. | Friction material |
| CN107709504A (en) * | 2015-06-19 | 2018-02-16 | 株式会社爱德克斯 | Non-asbestos friction material |
| US20180142748A1 (en) * | 2015-06-19 | 2018-05-24 | Advics Co., Ltd. | Non-asbestos friction material |
| US10415661B2 (en) * | 2015-06-19 | 2019-09-17 | Advics Co., Ltd. | Non-asbestos friction material |
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