JPH01182641A - Manufacture of fiber reinforced plastic plate spring - Google Patents
Manufacture of fiber reinforced plastic plate springInfo
- Publication number
- JPH01182641A JPH01182641A JP499088A JP499088A JPH01182641A JP H01182641 A JPH01182641 A JP H01182641A JP 499088 A JP499088 A JP 499088A JP 499088 A JP499088 A JP 499088A JP H01182641 A JPH01182641 A JP H01182641A
- Authority
- JP
- Japan
- Prior art keywords
- leaf spring
- frp
- base material
- ultra
- molecular weight
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 229920002430 Fibre-reinforced plastic Polymers 0.000 title abstract description 45
- 239000011151 fibre-reinforced plastic Substances 0.000 title abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 28
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 28
- 229920001971 elastomer Polymers 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000005060 rubber Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 3
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims 1
- 229920000098 polyolefin Polymers 0.000 claims 1
- 230000000704 physical effect Effects 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 239000000123 paper Substances 0.000 description 11
- 239000000835 fiber Substances 0.000 description 9
- -1 polyethylene Polymers 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 5
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- 229920005672 polyolefin resin Polymers 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229920002978 Vinylon Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- MUBKMWFYVHYZAI-UHFFFAOYSA-N [Al].[Cu].[Zn] Chemical compound [Al].[Cu].[Zn] MUBKMWFYVHYZAI-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000004711 α-olefin Substances 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
- F16F1/368—Leaf springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はＦＲＰ （繊維強化プラスチック）板ばね本体
の表面に基材を介して超高分子量ポリエチレンを積層し
た耐摩耗性に優れたＦＲＰ板ばねの製造法に関するもの
である。[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides an FRP (fiber-reinforced plastic) leaf spring with excellent wear resistance, in which ultra-high molecular weight polyethylene is laminated on the surface of the FRP (fiber-reinforced plastic) leaf spring body via a base material. This relates to a manufacturing method.
［従来技術とその問題点］
ＦＲＰ板ばねは、鋼製のものに比較して非常に軽量であ
るために車両用の板ばねに用いるための提案が種々なさ
れているが、長時間の使用に際してはその性能が充分に
保持できないという難点があった。[Prior art and its problems] Various proposals have been made for using FRP leaf springs as leaf springs for vehicles because they are extremely lightweight compared to those made of steel. had the disadvantage that its performance could not be maintained sufficiently.
これは板ばね同士が直接接触する場合にＦＲＰの耐摩耗
性が悪いために、使用中にＦＲＰ中の繊維の切断などの
板ばねの物性劣化を招き疲労寿命が短縮されるものと考
えられる。This is thought to be due to the poor wear resistance of FRP when leaf springs come into direct contact with each other, which leads to deterioration of the physical properties of the leaf springs such as cutting of fibers in the FRP during use, resulting in a shortened fatigue life.
一方超高分子量ポリエチレンは耐摩耗性に優れるものの
、極性基がないためにＦＲＰと強固に接着せしめること
は困難である。On the other hand, although ultra-high molecular weight polyethylene has excellent wear resistance, it is difficult to firmly adhere to FRP because it does not have polar groups.
したがって、超高分子量ポリエチレンをＦＲＰ板ばねの
間にスペーサーとして挟み−込んだ場合に超高分子量ポ
リエチレンのおさまりが悪く、使用中にずれたり、はず
れる等の不具合が生じる。Therefore, when ultra-high molecular weight polyethylene is sandwiched between FRP leaf springs as a spacer, the ultra-high molecular weight polyethylene does not fit well, causing problems such as shifting or coming off during use.
［発明が解決しようとする問題点］
本発明は上述のような問題点を解決するためになされた
もので、疲労寿命の長いＦＲＰ板ばねの製造法を提供す
ることを目的とするものである。[Problems to be Solved by the Invention] The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a method for manufacturing an FRP leaf spring with a long fatigue life. .
［発明が解決するための手段］
本発明は、ＦＲＰ板ばね本体の表面に基材を介して強固
に接着した超高分子量ポリエチレン層を設けたことを特
徴とするＦＲＰ板ばねの製造法である。[Means for Solving the Invention] The present invention is a method for manufacturing an FRP leaf spring, characterized in that an ultra-high molecular weight polyethylene layer is firmly adhered to the surface of the FRP leaf spring body via a base material. .
本発明でいうＦＲＰ板ばね本体とは、例えばエポキシ樹
脂、ポリエステル樹脂、フェノール樹脂等のマトリック
ス樹脂と炭素繊維、芳香族ポリアミド繊維、ガラス繊維
、シリコンカーバイド繊維、ボロン繊維等のフィラメン
トとを素材とするＦＲＰの各繊維の配列方向や数種類の
繊維を組み合わせることにより得られるもので、適宜の
強度と剛性を有すし、かつ軽量である。The FRP leaf spring body referred to in the present invention is made of a matrix resin such as epoxy resin, polyester resin, or phenol resin, and filament such as carbon fiber, aromatic polyamide fiber, glass fiber, silicon carbide fiber, or boron fiber. It is obtained by arranging the fibers of FRP and combining several types of fibers, and has appropriate strength and rigidity, and is lightweight.
ＦＲＰ板ばねは用途によって、ＦＲＰ板ばね本体を複数
重ねた重ねばねあるいは一体物の一枚のＦＲＰ板ばね本
体からなる板ばね等があり、場合によっては上記のＦＲ
Ｐ板ばね本体と鋼製板ばねを組合せたものもあり、本発
明でいうＦＲＰ板ばねとはこれらを包含するものである
。Depending on the application, FRP leaf springs include stacked springs made of multiple stacked FRP leaf spring bodies, or leaf springs made of a single integrated FRP leaf spring body.In some cases, the above FR
There is also a combination of a P leaf spring body and a steel leaf spring, and the FRP leaf spring as used in the present invention includes these.
本発明で用いる超高分子量ポリエチレンとは、１３５℃
デカリン溶液における極限粘度が８ｄｌ／ｇ以上、分子
量にして１００万以上のポリエチレンであることが望ま
しい。The ultra-high molecular weight polyethylene used in the present invention is
It is desirable that polyethylene has an intrinsic viscosity of 8 dl/g or more in a decalin solution and a molecular weight of 1 million or more.
ここでいうポリエチレンとは、エチレンの単独重合体、
エチレンと他のα−オレフィン、例えばプロピレン、ブ
テン−１、ペンテン−１、ヘキセン−１、オクテン−１
，４−メチル−１−ペンテン、スチレン等との共重合体
もしくはこれらの架橋物あるいはこれらの混合物が包含
される。Polyethylene here refers to a homopolymer of ethylene,
Ethylene and other α-olefins such as propylene, butene-1, pentene-1, hexene-1, octene-1
, 4-methyl-1-pentene, styrene, etc., crosslinked products thereof, or mixtures thereof.
本発明でＦＲＰ板ばね本体と超高分子量ポリエチレン層
の間に介在される基材としては、合成樹脂、ゴム、布、
金属板、金属箔、金網、紙からなる群から選ばれた少な
くとも １種の材料である。In the present invention, the base material interposed between the FRP leaf spring body and the ultra-high molecular weight polyethylene layer includes synthetic resin, rubber, cloth,
At least one material selected from the group consisting of metal plate, metal foil, wire mesh, and paper.
上記基材に使用する合成樹脂としては、ポリオレフィン
系樹脂、ポリアミド系樹脂、ポリスチレン系樹脂、ポリ
塩化ビニル系樹脂、ポリ塩化ビニリデン系樹脂、ポリカ
ーボネート系樹脂、ポリエステル系樹脂およびこれらの
混合物等が挙げられる。Examples of the synthetic resin used for the base material include polyolefin resins, polyamide resins, polystyrene resins, polyvinyl chloride resins, polyvinylidene chloride resins, polycarbonate resins, polyester resins, and mixtures thereof. .
基材として用いられるゴムの例としては、ポリブタジェ
ンゴム、ポリイソプレンゴム、ネオブレンゴム、エチレ
ン−プロピレン共重合体ゴム、エチレン−プロピレン−
ジエン共重合体ゴム、スチレン−ブタジェン共重合体ゴ
ム、スチレン−アクリロニトリル共重合体ゴム、スチレ
ン−アクリロニトリル−ブタジェン共重合体ゴム、ブチ
ルゴム、ポリウレタンゴム、塩素化ポリエチレン等の合
成ゴムおよび天然ゴム等が挙げられる。Examples of rubbers used as base materials include polybutadiene rubber, polyisoprene rubber, neoprene rubber, ethylene-propylene copolymer rubber, and ethylene-propylene rubber.
Synthetic rubbers and natural rubbers such as diene copolymer rubber, styrene-butadiene copolymer rubber, styrene-acrylonitrile copolymer rubber, styrene-acrylonitrile-butadiene copolymer rubber, butyl rubber, polyurethane rubber, chlorinated polyethylene, etc. It will be done.
基材として用いられる布としては、前記合成樹脂からな
るテープヤーン、モノフィラメント等の繊維の不織布、
織布、網状体あるいは上記合成樹脂フィルムを細く裁断
した割繊フィルムやビニロン、テトロン等の合成繊維、
木綿、絹、麻等の天然繊維からなる織布、ガラス繊維、
炭素繊維、金属繊維等の無機繊維からなる織布、マット
類、フェルト類等を包含するものである。The cloth used as the base material includes a tape yarn made of the synthetic resin described above, a nonwoven fabric of fibers such as monofilament,
Woven fabrics, nets, split films made by cutting the above synthetic resin films into thin pieces, synthetic fibers such as vinylon, tetron, etc.
Woven fabrics made of natural fibers such as cotton, silk, and linen, glass fibers,
This includes woven fabrics, mats, felts, etc. made of inorganic fibers such as carbon fibers and metal fibers.
基材として用いられる金属としては、鉄、アルミニウム
、銅、亜鉛、ニッケル、黄銅等の金属またはこれらの合
金からなる金属箔、金属板、金網、パンチングプレート
等が挙げられる。Examples of metals used as the base material include metal foils, metal plates, wire meshes, punching plates, etc. made of metals such as iron, aluminum, copper, zinc, nickel, and brass, or alloys thereof.
基材として用いられる紙としては、特に限定はなく、例
えばクラフト紙、ロール紙等の包装用紙、グラシン紙等
の薄葉紙、板紙その他の洋紙、障子紙等の和紙、或いは
ポリスチレンペーパー、ビニロン紙等の合成紙が用いら
れる。The paper used as the base material is not particularly limited, and examples include wrapping paper such as kraft paper and roll paper, thin paper such as glassine paper, paperboard and other Western papers, Japanese paper such as shoji paper, polystyrene paper, vinylon paper, etc. Synthetic paper is used.
本発明においては、前記ＦＲＰ板ばね本体表面、特に摩
擦、摺動面に、上記基材を介して超高分子量ポリエチレ
ン層が設けられる。その方法とじては、ＦＲＰ板ばね製
造時に基材を介して超高分子量ポリエチレン層を接合一
体化して設けても構わないが、特開昭８０−１５５４２
８号公報に開示されるように、予め基材と超高分子量ポ
リエチレンとを接着剤で結合せしめた積層シート（以下
、ＵＭＬシートと称する）の基材層を、硬イ１性樹脂を
介して強固に接着せしめることが、簡便で、安価であり
、かつＦＲＰ板ばねを製造した後でも接着できる等の利
点を有するので好ましく用いられる。In the present invention, an ultra-high molecular weight polyethylene layer is provided on the surface of the FRP leaf spring main body, particularly on the friction and sliding surfaces, with the base material interposed therebetween. As for the method, an ultra-high molecular weight polyethylene layer may be integrally bonded and provided via a base material when manufacturing FRP leaf springs, but Japanese Patent Application Laid-Open No. 80-1554
As disclosed in Publication No. 8, a base material layer of a laminated sheet (hereinafter referred to as a UML sheet) in which a base material and ultra-high molecular weight polyethylene are bonded together with an adhesive is bonded to the base material layer through a hard univalent resin. Strong adhesion is preferred because it is simple, inexpensive, and has the advantage of being able to be bonded even after the FRP leaf spring is manufactured.
上記基材と超高分子量ポリエチレンとを接着する接着剤
としては、エチレン、プロピレン等の単独重合体もしく
はそれら相互の共重合体、エチレンと酢酸ビニル、（メ
タ）アクリル酸もしくはそのエステル、無水カルボン酸
等の不飽和カルボン酸またはその誘導体等の極性基モノ
マーとの共重合体あるいは不飽和カルボン酸またはその
誘導体等で変性したポリオレフィン系樹脂等が好適に用
いられるが、特に不飽和カルボン酸またはその誘導体等
で変性したポリオレフィン系樹脂が好ましい。The adhesive for bonding the above substrate and ultra-high molecular weight polyethylene may be a homopolymer of ethylene, propylene, etc. or a copolymer thereof, ethylene and vinyl acetate, (meth)acrylic acid or its ester, carboxylic anhydride. copolymers with polar group monomers such as unsaturated carboxylic acids or derivatives thereof, or polyolefin resins modified with unsaturated carboxylic acids or derivatives thereof are preferably used, but in particular unsaturated carboxylic acids or derivatives thereof Polyolefin resins modified with etc. are preferred.
またＦＲＰ板ばね本体と基材とを接合する硬化性樹脂と
しては、エポキシ系樹脂、フェノール系樹脂、不飽和ポ
リエステル系樹脂、ジアリルフタレート系樹脂等が用い
られ、これらは、プリプレグ、プリミックスあるいは有
機溶剤等で所定樹脂含有量に希釈して使用される。In addition, epoxy resins, phenolic resins, unsaturated polyester resins, diallyl phthalate resins, etc. are used as the curable resin for bonding the FRP leaf spring body and the base material. It is used after being diluted with a solvent or the like to a predetermined resin content.
本発明において、超高分子量ポリエチレン層は、必ずし
もＦＲＰ板ばねの全面に積層する必要はなく、板ばねの
摩擦、摺動部分のみに積層してもよい。In the present invention, the ultra-high molecular weight polyethylene layer does not necessarily have to be laminated on the entire surface of the FRP leaf spring, but may be laminated only on the friction and sliding parts of the leaf spring.
次に、本発明を図面に基づいて具体的に説明する。Next, the present invention will be specifically explained based on the drawings.
第１〜３図は、本発明により得られるＦＲＰ板ばねある
いはその一部分をそれぞれ示し、各図において、１はＦ
ＲＰ板ばね本体、２は超高分子量ポリエチレン層、３は
基材、４はＦＲＰ板ばねを構成する親板ばね、５，５′
はＦＲＰ板ばねを構成する子板ばねをそれぞれ示す。1 to 3 each show an FRP leaf spring or a part thereof obtained according to the present invention, and in each figure, 1 is FRP.
RP leaf spring body, 2 is an ultra-high molecular weight polyethylene layer, 3 is a base material, 4 is a parent leaf spring constituting the FRP leaf spring, 5, 5'
1 and 2 respectively indicate child leaf springs constituting the FRP leaf spring.
第１図は、一体物であるＦＲＰ板ばね本体１の表面全部
に基材３を介して超高分子量ポリエチレン層２を強固に
接着した状態を示したものである。FIG. 1 shows a state in which an ultra-high molecular weight polyethylene layer 2 is firmly adhered to the entire surface of an integrated FRP leaf spring body 1 with a base material 3 interposed therebetween.
第２図は、重ね板ばねの各々の接触部のみに、基材３を
介して超高分子量ポリエチレン層２を強固に接着したＦ
ＲＰ板ばね本体１を示したものである。Fig. 2 shows an F with an ultra-high molecular weight polyethylene layer 2 firmly adhered to only the contact portions of the stacked leaf springs via a base material 3.
RP leaf spring main body 1 is shown.
第３図は、ＦＲＰの重ね板ばねを構成する親板ばね４と
子板ばね５，５′の接触部に、基材３を介して超高分子
量ポリエチレン層２を強固に接着したものである。FIG. 3 shows an ultra-high molecular weight polyethylene layer 2 firmly adhered via a base material 3 to the contact area between a parent leaf spring 4 and daughter leaf springs 5, 5', which constitute a stacked FRP leaf spring. .
［実施例〕 以下、本発明を図面に基づいて具体的に説明する。[Example〕 Hereinafter, the present invention will be specifically explained based on the drawings.
実施例
第１図に示すように、ＦＲＰ板ばね本体表面に、１ｍ厚
さの超高分子量ポリエチレンとポリエステルクロスとを
一体化したＵＭＬシートをエポキシ系接着剤で接合し、
ＦＲＰ板ばねを得た。Example As shown in Figure 1, a 1m thick UML sheet made of ultra-high molecular weight polyethylene and polyester cloth was bonded to the surface of the FRP leaf spring body using an epoxy adhesive.
An FRP leaf spring was obtained.
このＦＲＰ板ばね本体とＵＭＬシートとの接着強度を測
定した結果、その接着力は７ｏＫｇ／ｃｉ以上と非常に
強く、かつ該表面の摩耗量（面圧５に’Ｊ／ｃｎｉで１
０万回の往復運動後）は、Ｏ、ＯＯ１ｍｍ以下でｔｌｌ
ｊ定ができないのに対して、ＵＭＬシート層のないＦＲ
Ｐ板ばねの摩耗量は０．０３ｍであった。As a result of measuring the adhesive strength between this FRP leaf spring body and the UML sheet, it was found that the adhesive strength was extremely strong at over 7oKg/ci, and the amount of wear on the surface (surface pressure of 5 and 'J/cni' was 1
(after 00,000 reciprocating movements) is tll with O, OO1mm or less
FR without UML sheet layer
The amount of wear on the P leaf spring was 0.03 m.
［発明の効果］
上述のように、ＦＲＰ板ばね本体の表面に基材を介して
超高分子量ポリエチレン層を設けた本発明により得られ
るＦＲＰ板ばねは、強固に接着されているため、使用中
にずれたり、外れたりすることがない。したがって、Ｆ
ＲＰ板ばね本体同士がこすれる重ねばねあるいは通例の
板ばねの場合でも摩耗がなく、ＦＲＰ板ばねの物性劣化
を招かないので、ＦＲＰ板ばねの疲労寿命を大幅に延長
することができる。[Effects of the Invention] As described above, the FRP leaf spring obtained by the present invention, in which an ultra-high molecular weight polyethylene layer is provided on the surface of the FRP leaf spring body via a base material, is firmly bonded, so that it can be easily used during use. It will not shift or come off. Therefore, F
Even in the case of a stacked spring or a normal leaf spring where the RP leaf spring bodies rub against each other, there is no wear and the physical properties of the FRP leaf spring do not deteriorate, so the fatigue life of the FRP leaf spring can be significantly extended.
第１図は、一体物のＦＲＰ板ばね本体の表面全部に、基
材を介して超高分子量ポリエチレン層を設けたＦＲＰ板
ばねの斜視図、
第２図は、重ね板ばねを構成するＦＲＰ板ばね本体の接
触部のみに、基材を介して超高分子量ポリエチレン層を
設けたＦＲＰ板ばね本体の斜視図、そして
第３図は、重ね板ばねを構成するＦＲＰ板ばね本体の接
触部のみに、基材を介して超高分子量ポリエチレン層を
設けたＦＲＰ板ばねの斜視図。
１・・・ＦＲＰ板ばね本体、
２・・・超高分子量ポリエチレン層、
３・・・基材、
４・・・親板ばね、
５．５′・・・子板ばね。
特許出願人 日本石油化学株式会社Figure 1 is a perspective view of an FRP leaf spring in which an ultra-high molecular weight polyethylene layer is provided on the entire surface of the integrated FRP leaf spring body through a base material. Figure 2 is a perspective view of the FRP leaf spring that constitutes the stacked leaf spring. A perspective view of an FRP leaf spring body in which an ultra-high molecular weight polyethylene layer is provided only on the contact part of the spring body via a base material, and FIG. , is a perspective view of an FRP leaf spring provided with an ultra-high molecular weight polyethylene layer via a base material. DESCRIPTION OF SYMBOLS 1...FRP leaf spring body, 2...Ultra-high molecular weight polyethylene layer, 3...Base material, 4...Main leaf spring, 5.5'...Slave leaf spring. Patent applicant: Japan Petrochemical Co., Ltd.
Claims (1)
した超高分子量ポリエチレン層を設けたことを特徴とす
るＦＲＰ板ばねの製造法。 ２、前記基材が合成樹脂、ゴム、布、金属板、金属箔、
金網、紙からなる群から選ばれた少なくとも１種の材料
からなることを特徴とする特許請求の範囲第１項記載Ｆ
ＲＰ板ばねの製造法。 ３、前記ＦＲＰ板ばねの本体の表面に、予め基材と超高
分子量ポリエチレンとを接着剤で結合せしめた積層シー
トの基材層を、硬化性樹脂を介して強固に接着したこと
を特徴とする特許請求の範囲第１項または第２項記載の
ＦＲＰ板ばねの製造法。 ４、前記接着剤が不飽和カルボン酸またはその誘導体で
変性されたオレフィン重合体である特許請求の範囲第１
〜３項のいずれかに記載のＦＲＰ板ばねの製造法。 ５、前記超高分子量ポリエチレンが１３５℃デカリン溶
液による極限粘度が８ｄｌ／ｇ以上である特許請求の範
囲第１〜４項のいずれかに記載のＦＲＰ板ばねの製造法
。[Claims] 1. A method for manufacturing an FRP leaf spring, characterized in that an ultra-high molecular weight polyethylene layer is firmly adhered to the surface of the FRP leaf spring body via a base material. 2. The base material is synthetic resin, rubber, cloth, metal plate, metal foil,
F as described in claim 1, characterized in that it is made of at least one material selected from the group consisting of wire mesh and paper.
Manufacturing method of RP leaf spring. 3. A base material layer of a laminated sheet in which a base material and ultra-high molecular weight polyethylene are bonded in advance with an adhesive is firmly adhered to the surface of the main body of the FRP leaf spring via a curable resin. A method for manufacturing an FRP leaf spring according to claim 1 or 2. 4. Claim 1, wherein the adhesive is an olefin polymer modified with an unsaturated carboxylic acid or a derivative thereof.
A method for manufacturing an FRP leaf spring according to any one of items 1 to 3. 5. The method for manufacturing an FRP leaf spring according to any one of claims 1 to 4, wherein the ultra-high molecular weight polyethylene has an intrinsic viscosity of 8 dl/g or more in a decalin solution at 135°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP499088A JPH01182641A (en) | 1988-01-14 | 1988-01-14 | Manufacture of fiber reinforced plastic plate spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP499088A JPH01182641A (en) | 1988-01-14 | 1988-01-14 | Manufacture of fiber reinforced plastic plate spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01182641A true JPH01182641A (en) | 1989-07-20 |
Family
ID=11599045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP499088A Pending JPH01182641A (en) | 1988-01-14 | 1988-01-14 | Manufacture of fiber reinforced plastic plate spring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01182641A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0889257A3 (en) * | 1997-07-04 | 1999-10-06 | Rejna S.p.A. | Improved-type leaf spring, in particular for a suspension of a vehicle |
| KR20020009876A (en) * | 2000-07-27 | 2002-02-02 | 구자홍 | Apparatus for protecting fretting corrosion of plate spring |
| WO2007056972A1 (en) * | 2005-11-16 | 2007-05-24 | Ifc Composite Gmbh | Fiber composite leaf spring comprising a sacrificial layer on the exterior thereof |
| WO2008039159A1 (en) * | 2006-09-27 | 2008-04-03 | Ocak Kalip Makina Imalat Sanayi Ve Ticaret Limited Sirketi | Reinforced locker in control knob mechanisms |
| JP2010018086A (en) * | 2008-07-09 | 2010-01-28 | Nhk Spring Co Ltd | Pad for leaf spring |
-
1988
- 1988-01-14 JP JP499088A patent/JPH01182641A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0889257A3 (en) * | 1997-07-04 | 1999-10-06 | Rejna S.p.A. | Improved-type leaf spring, in particular for a suspension of a vehicle |
| KR20020009876A (en) * | 2000-07-27 | 2002-02-02 | 구자홍 | Apparatus for protecting fretting corrosion of plate spring |
| WO2007056972A1 (en) * | 2005-11-16 | 2007-05-24 | Ifc Composite Gmbh | Fiber composite leaf spring comprising a sacrificial layer on the exterior thereof |
| DE102005055049B4 (en) * | 2005-11-16 | 2013-06-20 | Ifc Composite Gmbh | Process for producing a leaf spring made of a fiber composite material |
| WO2008039159A1 (en) * | 2006-09-27 | 2008-04-03 | Ocak Kalip Makina Imalat Sanayi Ve Ticaret Limited Sirketi | Reinforced locker in control knob mechanisms |
| JP2010018086A (en) * | 2008-07-09 | 2010-01-28 | Nhk Spring Co Ltd | Pad for leaf spring |
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