JP2758582B2 - Brake pad manufacturing method - Google Patents
Brake pad manufacturing methodInfo
- Publication number
- JP2758582B2 JP2758582B2 JP7335239A JP33523995A JP2758582B2 JP 2758582 B2 JP2758582 B2 JP 2758582B2 JP 7335239 A JP7335239 A JP 7335239A JP 33523995 A JP33523995 A JP 33523995A JP 2758582 B2 JP2758582 B2 JP 2758582B2
- Authority
- JP
- Japan
- Prior art keywords
- brake pad
- molten metal
- silicon carbide
- temperature
- stirring
- 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 - Fee Related
Links
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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/125—Discs; Drums for disc brakes characterised by the material used for the disc body
- F16D65/126—Discs; Drums for disc brakes characterised by the material used for the disc body the material being of low mechanical strength, e.g. carbon, beryllium; Torque transmitting members therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ブレーキパッドの
製造方法に関し、特に、優れた振動緩衝能力（damping
capacity of vibration ）を有し、鉄製の代わりにシリ
コンカーバイドを含有するアルミニウム板と、ノイズイ
ンシュレーター（noise insulator ）を含まないで摩擦
材（friction material ）とから構成されるブレーキパ
ッドの有利なプロセスに関する。The present invention relates to relates to a method of <br/> manufacturing brake pads, in particular, excellent vibration buffering capacity (damping
The present invention relates to an advantageous process for a brake pad composed of an aluminum plate having a capacity of vibration and containing silicon carbide instead of iron, and a friction material without a noise insulator.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】一般的
に、ブレーキパッドは鉄製の背板（backing plate ）
と、ゴム−鉄−ゴムからなるノイズインシュレーター
と、摩擦材とを有する。しかし、背板の構成要素として
の鉄は、摩擦材に接着する際に低い熱伝導性のために、
製造のサイクル時間が長いという問題と、鉄の振動緩衝
能力が低いという問題点を有する。2. Description of the Related Art Generally, a brake pad is made of a steel backing plate.
And a noise insulator made of rubber-iron-rubber, and a friction material. However, iron as a component of the back plate has low thermal conductivity when bonding to friction materials,
It has a problem that the manufacturing cycle time is long and a problem that the vibration damping capacity of iron is low.
【０００３】鉄をブレーキパッドの構成要素として適用
するために、コイルのより戻し（decoiling ）、板抜き
（blanking）、切断、刻みをいれる工程（notching）、
穿孔の工程が必要であり、その後、摩擦材を接着した
後、その腐食を防止するための塗装と、熱の放射を促進
するための溝形成（grooving）もまた必要である。[0003] In order to apply iron as a component of a brake pad, the process of decoiling, blanking, cutting and notching of the coil,
A perforation step is required, after which the friction material must be glued and then painted to prevent its corrosion and grooving to promote heat radiation.
【０００４】そして、ノイズインシュレーターを含む３
つの部品が必要であるという問題点もある。したがっ
て、この発明者は、鉄を用いることによる低い振動緩衝
能力と複雑な工程という問題、及びノイズインシュレー
ターを用いることによる問題を解決するべく努力した。
その結果、鉄の代わりにシリコンカーバイドを含有する
アルミニウム板を用い、ノイズインシュレーターを不要
にして、摩擦材と背板とから構成されるブレーキパッド
を完成した。[0004] Then, 3 including a noise insulator
There is also a problem that one component is required. Accordingly, the inventor has sought to solve the problems of low vibration damping capability and complicated process by using iron, and the problem by using noise insulator.
As a result, a brake pad composed of a friction material and a back plate was completed by using an aluminum plate containing silicon carbide instead of iron and eliminating the need for a noise insulator.
【０００５】この発明の目的は、工程の省略により生産
性が改良された、優れた振動緩衝能力を有するブレーキ
パッドの製造方法を提供することにある。[0005] The object of the present invention is to reduce production steps
Brake with improved vibration resistance and excellent vibration damping capacity
An object of the present invention is to provide a pad manufacturing method .
【０００６】本発明は、次の工程を有するブレーキパッ
ドの製造方法に関する。 （ａ）１０〜３０重量％のシリコンカーバイドを含有す
るアルミニウムを仕込んで温度を６６０〜８００℃に維
持し、攪拌し、その後溶融金属温度を８４３℃以下に保
持し攪拌する工程と、 （ｂ）金属型に（ａ）の溶融金属を注入、鋳造すること
によって、ブレーキパッド板を製造し、その後、冷却
し、１６０〜１７０℃に加熱し、そして接着剤をその上
に塗装する工程と、 （ｃ）摩擦材をその上に１６０〜１８０℃で５〜１２分
の条件で接着する工程。[0006] The present invention relates to a method of manufacturing a brake pad having the following steps. (A) a step of charging aluminum containing 10 to 30% by weight of silicon carbide, maintaining the temperature at 660 to 800 ° C., stirring, and thereafter maintaining and stirring the molten metal temperature at 843 ° C. or lower; and (b) Producing a brake pad plate by injecting and casting the molten metal of (a) into a metal mold, then cooling, heating to 160-170 ° C., and applying an adhesive thereon; c) A step of bonding a friction material thereon at 160 to 180 ° C. for 5 to 12 minutes.
【０００７】[0007]
【発明の実施の形態】この発明は、アルミニウムのブレ
ーキパッド板の製造方法に関し、この発明の簡単な工程
を図１に示した。詳細な工程を次に述べる。粒経が１０
μｍ（±１μｍ）、アスペクト比が１〜１．５：１のシ
リコンカーバイドを２０重量％含有するアルミニウムイ
ンゴットを２５０℃で２時間予備加熱し、電気抵抗炉に
し込んだ。シリコンカーバイドの配合量は、１０〜３０
重量％の範囲である。アルミニウム中のシリコンカーバ
イドの量が、３０重量％を超えると、流動性が悪くな
り、１０重量％より低いと、配合の効果がなくなる。ア
スペクト比が１．５：１より大きくなると、引っ張り強
さや降伏強さのような機械的特性が低下する。そして、
乾燥アルゴンガス等の不活性ガスを溶融金属の表面に、
その表面が酸化しないように流速０．２５〜０．５０ｍ
ｍ3 ／ｍｉｎで吹きつけた。流速が０．２５ｍｍ3 ／ｍ
ｉｎより少ないと、溶融金属が容易に酸化されてしま
い、０．５０ｍｍ3 ／ｍｉｎより多いと、流動性が低下
する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a method for manufacturing an aluminum brake pad plate , and the simple steps of the present invention are shown in FIG. The detailed steps will be described below. Particle size is 10
An aluminum ingot containing 20% by weight of silicon carbide having a thickness of 1 μm (± 1 μm) and an aspect ratio of 1 to 1.5: 1 was preheated at 250 ° C. for 2 hours, and put into an electric resistance furnace. The compounding amount of silicon carbide is 10 to 30
% By weight. If the amount of silicon carbide in aluminum exceeds 30% by weight, the fluidity will be poor, and if it is less than 10% by weight, the effect of blending will be lost. When the aspect ratio is larger than 1.5: 1, mechanical properties such as tensile strength and yield strength decrease. And
Inert gas such as dry argon gas is applied to the surface of molten metal.
0.25-0.50m flow velocity so that the surface is not oxidized
It sprayed at m 3 / min. Flow rate is 0.25mm 3 / m
If it is less than in, the molten metal is easily oxidized, and if it is more than 0.50 mm 3 / min, the fluidity decreases.
【０００８】次いで、電気抵抗炉の温度を加熱により、
６６０〜８００℃、３０分間維持し、加熱の途中で、ア
ルミニウムが完全に溶解したとき、２〜５分間攪拌する
ことによって、シリコンカーバイド粒子を均一に分散さ
せる。そして、溶融金属の温度を８４３℃以下に制御す
る。Next, the temperature of the electric resistance furnace is increased by heating.
The temperature is maintained at 660 to 800 ° C. for 30 minutes. During the heating, when the aluminum is completely dissolved, the silicon carbide particles are uniformly dispersed by stirring for 2 to 5 minutes. Then, the temperature of the molten metal is controlled to 843 ° C. or less.
【０００９】上記炉の温度が６６０℃より下であれば、
その流動性が低下し、８００℃を超えると、シリコンカ
ーバイドがアルミニウムと反応する可能性がある。溶融
金属の温度が８４３℃を超えると、次の反応がシリコン
カーバイドとアルミニウム合金との界面で起こる。If the temperature of the furnace is below 660 ° C.,
When its fluidity decreases and exceeds 800 ° C., silicon carbide may react with aluminum. When the temperature of the molten metal exceeds 843 ° C., the following reaction occurs at the interface between silicon carbide and the aluminum alloy.
【００１０】３ＳｉＣ＋４Ａｌ→Ａｌ4 Ｃ3 ＋３Ｓｉ これによって、上記シリコンカーバイドは弱くなり、流
動性や耐腐食性が低下し、ブレーキパッド板の機械的性
特性が低下する。溶融金属が完全に溶解した後、鋳造前
に５分間当たり２〜３分間攪拌する。その結果、シリコ
ンカーバイドの沈降を防止し、シリコンカーバイドを均
一に分散させる。その後、金属型を２５０トンのダイカ
スト機械に装填し、溶融金属をその中に注入することに
より、ブレーキパッド板を製造する。3SiC + 4Al → Al 4 C 3 + 3Si Accordingly, the silicon carbide is weakened, the fluidity and the corrosion resistance are reduced, and the mechanical properties of the brake pad plate are reduced. After the molten metal is completely dissolved, stir for 2-3 minutes per 5 minutes before casting. As a result, sedimentation of the silicon carbide is prevented, and the silicon carbide is uniformly dispersed. Thereafter, the metal mold is loaded into a 250 ton die casting machine and the molten metal is poured therein to produce a brake pad plate.
【００１１】ブレーキパッド板を空気で冷却し、１６０
〜１７０℃で５時間加熱し、そして２時間脱脂する。加
熱温度が上記範囲を超えると、生成物の強度が低下す
る。生成物の表面をきれいにするため、鋼球を詰めた管
に入れて３０分間揺動させる。その後、フェノール樹脂
をブレーキパッド板と摩擦材の接着表面に塗布する。The brake pad plate is cooled with air,
Heat at ~ 170 ° C for 5 hours and degrease for 2 hours. If the heating temperature exceeds the above range, the strength of the product decreases. Shake for 30 minutes in a tube packed with steel balls to clean the surface of the product. Thereafter, a phenolic resin is applied to the bonding surface between the brake pad plate and the friction material.
【００１２】摩擦材として、半金属パッド（semi-metal
lic pad ）、アルミニウムなどの非鉄製のパッド（non-
steel pad ）、又はアスベストを用いない有機パッド
（non-asbestos organic pad）を用いる。そして、それ
を１８０〜２００℃で２０〜３０分間加熱し、７５〜８
５℃で２０分間乾燥する。As a friction material, a semi-metal pad (semi-metal pad) is used.
lic pad) and non-ferrous pads (non-
Use a steel pad) or an organic pad without asbestos (non-asbestos organic pad). Then, it is heated at 180-200 ° C. for 20-30 minutes,
Dry at 5 ° C. for 20 minutes.
【００１３】接着剤をブレーキパッド板の接着表面（摩
擦材との）に塗布する。上記接着剤が塗布されたブレー
キパッド板を摩擦材成型の金属型に配置し、計量された
摩擦材をその型に加え、１６０〜１８０℃で５〜１２分
間加圧下で加熱することにより、ブレーキパッド板に接
着する。それを１７０〜２３５℃で６〜１０時間熟成
後、樹脂を摩擦材の表面に塗布し、乾燥する。An adhesive is applied to the bonding surface (with the friction material) of the brake pad plate. The brake pad plate coated with the above adhesive is placed in a metal mold of friction material molding, the measured friction material is added to the mold, and heated at 160 to 180 ° C. for 5 to 12 minutes under pressure, whereby the brake is applied. Adhere to the pad plate. After aging at 170 to 235 ° C for 6 to 10 hours, a resin is applied to the surface of the friction material and dried.
【００１４】上記方法で製造されたこの発明のブレーキ
パッドは、３つの構成要素を有する既知の鉄製のブレー
キパッドと比較して約７０％の重量削減効果を有し、そ
のコストは、２０％削減された。加えて、その工程は従
来技術より短縮され、また、アルミニウムの熱伝導性は
鉄のそれより４倍以上大きいので、工程のサイクル時間
は減少し、したがって、その生産性は改良された。そし
て、それは優れた振動緩衝能力を有し、これにより、従
来技術のノイズインシュレーターは不要である。The brake pad of the present invention manufactured in the above-described manner has a weight reduction effect of about 70% as compared with a known iron brake pad having three components, and its cost is reduced by 20%. Was done. In addition, the process is shorter than in the prior art, and because the thermal conductivity of aluminum is more than four times greater than that of iron, the cycle time of the process has been reduced, and thus its productivity has been improved. And it has excellent vibration damping ability, so that the prior art noise insulator is not required.
【図１】本発明のブレーキパッドの製造工程を示すフロ
ーチャートである。FIG. 1 is a flowchart showing a manufacturing process of a brake pad of the present invention.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平５−44752（ＪＰ，Ａ) 特開 平６−335786（ＪＰ，Ａ) 実開 平５−92547（ＪＰ，Ｕ) 実開 昭53−32293（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) F16D 69/00 - 69/02──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-44752 (JP, A) JP-A-6-335786 (JP, A) JP-A 5-92547 (JP, U) JP-A 53-47 32293 (JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) F16D 69/00-69/02
Claims (2)
るアルミニウムを仕込んで温度を６６０〜８００℃に維
持し、攪拌し、その後溶融金属温度を８４３℃以下に保
持し攪拌する工程と、 （ｂ）金属型に（ａ）の溶融金属を注入、鋳造すること
によって、ブレーキパッド板を製造し、その後、冷却
し、１６０〜１７０℃に加熱し、そして接着剤をその上
に塗装する工程と、 （ｃ）摩擦材をその上に１６０〜１８０℃で５〜１２分
の条件で接着する工程とを有するブレーキパッドの製造
方法。1. (a) A step of charging aluminum containing 10 to 30% by weight of silicon carbide, maintaining the temperature at 660 to 800 ° C., and stirring, and thereafter maintaining the molten metal temperature at 843 ° C. or lower and stirring. (B) producing a brake pad plate by injecting and casting the molten metal of (a) into a metal mold, then cooling, heating to 160-170 ° C., and coating the adhesive thereon; And (c) bonding a friction material thereon at 160 to 180 ° C. for 5 to 12 minutes.
ミニウムを仕込んで温度を６６０〜８００℃に維持し、
攪拌し、その後溶融金属温度を８４３℃以下に保持し、
攪拌しながら、溶融炉に仕込んだ溶融金属表面に、不活
性ガスを０．２５〜０．５０ｍｍ3 ／ｍｉｎの率で送る
工程である、請求項１に記載のブレーキパッドの製造方
法。2. The step (a) comprises: charging aluminum containing 10 to 30% by weight of silicon carbide, maintaining the temperature at 660 to 800 ° C.,
Stirring and then maintaining the molten metal temperature below 843 ° C.
With stirring, to the molten metal surface were charged into a melting furnace, the inert gas is a step of sending at a rate of 0.25~0.50mm 3 / min, method of manufacturing a brake pad according to claim 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950034653A KR970021822A (en) | 1995-10-10 | 1995-10-10 | Brake pads and manufacturing method |
| KR1995-34653 | 1995-10-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09126258A JPH09126258A (en) | 1997-05-13 |
| JP2758582B2 true JP2758582B2 (en) | 1998-05-28 |
Family
ID=19429685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7335239A Expired - Fee Related JP2758582B2 (en) | 1995-10-10 | 1995-12-22 | Brake pad manufacturing method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2758582B2 (en) |
| KR (1) | KR970021822A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936350B (en) * | 2012-11-14 | 2014-06-04 | 陕西科技大学 | Method for preparing silicon carbide reinforced carbon cloth based composite friction material |
| KR101494091B1 (en) * | 2013-07-22 | 2015-03-02 | (주) 삼성특수브레이크 | Manufacturing method of brake shoe assembly for drum brake and the brake shoe assembly thereby |
| ITTO20130855A1 (en) | 2013-10-21 | 2015-04-22 | Itt Italia Srl | METHOD FOR OBTAINING BRAKE PADS AND ASSOCIATED BRAKE PAD |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5332293U (en) * | 1976-08-25 | 1978-03-20 | ||
| JPH0544752A (en) * | 1991-08-14 | 1993-02-23 | Izumi Ind Ltd | Brake disk and manufacture thereof |
| JP2563778Y2 (en) * | 1992-05-15 | 1998-02-25 | 曙ブレーキ工業株式会社 | Back of pad for disc brake |
| JPH06335786A (en) * | 1993-05-26 | 1994-12-06 | Kubota Corp | Manufacture of composite disk rotor |
-
1995
- 1995-10-10 KR KR1019950034653A patent/KR970021822A/en not_active Application Discontinuation
- 1995-12-22 JP JP7335239A patent/JP2758582B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR970021822A (en) | 1997-05-28 |
| JPH09126258A (en) | 1997-05-13 |
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