JP6480392B2 - Vリブドベルト及びその製造方法 - Google Patents
Vリブドベルト及びその製造方法 Download PDFInfo
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- JP6480392B2 JP6480392B2 JP2016175415A JP2016175415A JP6480392B2 JP 6480392 B2 JP6480392 B2 JP 6480392B2 JP 2016175415 A JP2016175415 A JP 2016175415A JP 2016175415 A JP2016175415 A JP 2016175415A JP 6480392 B2 JP6480392 B2 JP 6480392B2
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/20—V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D29/00—Producing belts or bands
- B29D29/10—Driving belts having wedge-shaped cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/12—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
-
- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/04—V-belts, i.e. belts of tapered cross-section made of rubber
- F16G5/06—V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber
- F16G5/08—V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber with textile reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0094—Geometrical properties
- B29K2995/0097—Thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/048—Natural or synthetic rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/22—Fibres of short length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2433/00—Closed loop articles
- B32B2433/04—Driving belts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
Description
るVリブドベルト及びその製造方法を提供することにある。
複合層は、圧縮ゴム層の底部において、研削されずに形成され、圧縮ゴム層を構成するゴム組成物の加硫温度で溶融しない耐熱性繊維を含む繊維集合体と、この繊維集合体の繊維間(集合体内部の繊維同士の隙間)に含浸した前記ゴム組成物の加硫物とを含む。
繊維集合体は、耐熱性繊維を主要な繊維として含んでいればよく、本発明の効果を損なわない限り、非耐熱性繊維(例えば、ポリオレフィン繊維、アクリル系繊維、ビニル系繊維、スチレン系繊維、ポリカーボネート系繊維、ポリウレタン繊維、熱可塑性エラストマー繊維など)を含んでいてもよい。耐熱性繊維の割合は、繊維集合体全体に対して50質量%以上であり、例えば50〜100質量%、好ましくは80〜100質量%、さらに好ましくは90〜100質量%程度であり、100質量%(耐熱性繊維のみ)であってもよい。
前記ゴム組成物は、圧縮ゴム層のゴム組成物が繊維集合体の繊維間に浸透した(存在した又は含まれた)ゴム組成物である。ゴム組成物は、特に制限されないが、通常、ゴム成分と加硫剤又は架橋剤とを含むゴム組成物が使用される。本発明は、特に、硫黄や有機過酸化物を含むゴム組成物(特に有機過酸化物加硫型ゴム組成物)で未加硫ゴム層を形成し、未加硫ゴム層を加硫又は架橋するのに有用である。
ヨウ素価が小さすぎると、ゴム組成物の加硫が不十分になって磨耗や粘着が発生し易く、逆にヨウ素価が大きすぎると、ゴム組成物のスコーチが短くなって扱い難くなると共に耐熱性が低下する傾向がある。
本発明では、圧縮ゴム層を構成するゴム組成物の加硫によって溶融しない耐熱性繊維を含む繊維集合体が圧縮ゴム層の表面に埋設してゴム組成物と混在(一体化)した複合層を形成するため、繊維の柔軟性を保持でき、ベルトの屈曲における障害(突っ張り)とならず、ベルトの耐久性を向上できるとともに、圧縮ゴム層底部での毛羽立ちを抑制でき、外観性状も損なわれない。さらに、複合層は、加硫工程において繊維形状が消失せず、残存するため、繊維形状により加硫工程における離型性や通気性、更には耐久性を確保できる。
圧縮ゴム層は、前記複合層に含まれるゴム組成物と同一のゴム組成物で形成されており、さらに補強繊維として、アラミド短繊維などのポリアミド短繊維、ポリエステル短繊維、ビニロン短繊維などの短繊維を含んでいてもよい。補強繊維の割合は、ゴム成分100質量部に対して80質量部以下であってもよく、例えば1〜80質量部、好ましくは3〜60質量部、さらに好ましくは5〜50質量部(特に10〜45質量部)程度である。短繊維の割合が少なすぎると、ベルトの耐久性が低下する虞がある。
接着ゴム層にも前記圧縮ゴム層と同様のゴム組成物(エチレン−α−オレフィンエラストマーなどのゴム成分を含むゴム組成物)が使用できる。接着ゴム層のゴム組成物において、ゴム成分としては、前記圧縮ゴム層のゴム組成物のゴム成分と同系統又は同種のゴムを使用する場合が多い。また、加硫剤又は架橋剤、共架橋剤又は架橋助剤、加硫促進剤などの添加剤の割合も、それぞれ、前記圧縮ゴム層のゴム組成物と同様の範囲から選択できる。接着ゴム層のゴム組成物は、さらに接着性改善剤(レゾルシン−ホルムアルデヒド共縮合物、アミノ樹脂など)を含んでいてもよい。接着ゴム層の平均厚みは、例えば0.4〜3mm、好ましくは0.6〜2mm、さらに好ましくは0.8〜1.5mm程度である。
本発明のVリブドベルトの平均厚みは2〜12mm程度の範囲から選択でき、例えば、2.5〜10mm、好ましくは3.8〜5mm程度であり、例えば4.1〜4.3mm程度であってもよい。リブ部の平均厚みは1〜3.5mm程度の範囲から選択でき、例えば1.2〜3mm、好ましくは1.5〜2.7mm、さらに好ましくは1.6〜2mm程度である。リブ部の平均厚みは、ベルト全体の平均厚みに対して54%以下であってもよく、好ましくは36〜53%程度である。
(実施例1〜5のポリエチレンテレフタレート(PET)不織布:廣瀬製紙(株)製、融点260℃、熱融着点なし)
実施例1:商品名「05TH−8」、目付8g/m2、厚み0.03mm
実施例2:商品名「05TH−12」、目付12g/m2、厚み0.04mm
実施例3:商品名「05TH−15」、目付15g/m2、厚み0.04mm
実施例4:商品名「05TH−20」、目付20g/m2、厚み0.07mm
実施例5:商品名「05TH−20H」、目付20g/m2、厚み0.05mm
(実施例6のポリエチレンテレフタレート(PET)不織布:東洋紡(株)製、融点260℃、熱融着点有り)
実施例6:商品名「3151AD」、目付15g/m2、厚み0.12mm
(比較例の不織布)
比較例1:レーヨン不織布、シンワ(株)製、商品名「#5130」、目付30g/m2、厚み0.4mm、融点(軟化点)なし
比較例2及び3:低密度ポリエチレン(PE)不織布、出光ユニテック(株)製、商品名「ストラテックLL」、目付30g/m2、厚み0.3mm、融点130℃
比較例4:ポリプロピレン(PP)不織布、旭化成せんい(株)製、商品名「PL2020」、目付15g/m2、厚み0.14mm、融点165℃、熱融着点有り
比較例5:ポリプロピレン(PP)不織布、出光ユニテック(株)製、商品名「ストラテックRN2030」、目付30g/m2、厚み0.24mm、融点165℃、熱融着点有り
EPDMポリマー:デュポン・ダウエラストマージャパン(株)製「IP3640」、ムーニー粘度40(100℃)
ポリアミド短繊維:旭化成(株)製「66ナイロン」
カーボンブラックHAF:東海カーボン(株)製「シースト3」
パラフィン系軟化剤:出光興産(株)製「ダイアナプロセスオイル」
有機過酸化物:化薬アクゾ(株)製「パーカドックス14RP」
含水シリカ:東ソー・シリカ(株)製「Nipsil VN3」、比表面積240m2/g
老化防止剤:精工化学(株)製「ノンフレックスOD3」
加硫促進剤DM:ジ−2−ベンゾチアゾリルジスルフィド。
心線:1,000デニールのPET繊維を2×3の撚り構成で、上撚り係数3.0、下撚り係数3.0で緒撚りしたトータルデニール6,000のコードを接着処理した繊維。
実施例及び比較例におけるベルトの製造において、加硫ジャケットを外した加硫ベルトスリーブの状態を観察し、以下の基準で評価した。
×:加硫ベルトスリーブの外周面が加硫ジャケットと粘着して剥離しにくい(工具が必要)。表面に擦れ模様が生じて外観に劣る。
耐熱耐久性の試験に用いた走行試験機は、駆動プーリ(直径120mm)、アイドラープーリ(直径85mm)、従動プーリ(直径120mm)、テンションプーリ(直径45mm)を配置して構成される。そして、テンションプーリへの巻き付け角度が90°、アイドラープーリへの巻き付け角度が120°になるように各プーリにVリブドベルトを懸架し、雰囲気温度120℃、駆動プーリの回転数4900rpmの条件でVリブドベルトを走行させた。このとき、ベルト張力40kgf/リブとなるように駆動プーリに荷重を付与し、従動プーリに負荷8.8kWを与えた。そして、このようにVリブドベルトを走行させ、心線に達する亀裂が6個発生するまでの時間を測定した。
図2に示すレイアウトの試験機を用いて、実施例及び比較例で得られたVリブドベルトを130℃雰囲気下でVリブドベルトの走行試験を行い、リブ部にクラックが発生するまでの時間を測定し、耐屈曲疲労性を評価した。測定は、比較例1を除いて2回以上行い、平均値及びバラツキ(最大値と最小値との差)を算出した。
実施例及び比較例で得られたVリブドベルトのリブ先端面を目視で観察し、以下の基準で判定した。
3:リブ先端面の一部に不織布の繊維の毛羽立ちまたはスキン層の塊がわずかにあるが目立たない
2:リブ先端面に不織布の繊維の毛羽立ちまたはスキン層の塊があり、やや目立つ
1:リブ先端面の全体に不織布の繊維の毛羽立ちまたはスキン層の塊がある。
(2)側部を研削する際に、底部(複合層)に埋設していた繊維形状を維持した糸状物が、グラインダーの影響で複合層から引っ張り出されて表面に出てきた状態。
(伸張層を形成するため外被布)
外被布として、綿繊維とポリエチレンテレフタレート繊維を重量比で50:50の混撚糸を使用したワイドアングルの平織帆布(厚み0.63mm)を用いた。これらの帆布をRFL液に浸漬した後、150℃で2分間熱処理して接着処理帆布とした。さらに、この接着処理帆布に、表1に示すゴム組成物により得た接着ゴム層を形成するためのゴムシート(厚み0.5mm)を積層した積層体を作製した。
表1に示すゴム組成物をバンバリーミキサーで混練し、カレンダーロールによって圧延することによって、圧縮ゴム層を形成するためのゴムシートを2.2mmの厚みで、接着ゴム層を形成するためのゴムシートを0.5mmの厚みで作製した。
表面が平滑な円筒状ドラム(成形金型)の外周に、伸張層を形成するための外被布と接着ゴム層を形成するためのゴムシートとを積層した積層体を、接着ゴム層を形成するためのゴムシートが外周面となるように巻き付けた。この積層体の外周面に心線をスパイラル状に巻き付けた後、さらにこの心線の上に、接着ゴム層を形成するためのゴムシートと圧縮ゴム層を形成するためのゴムシートとを積層した積層体を、圧縮ゴム層を形成するためのゴムシートが最外周面となるように巻き付けた。さらに、この最外周面に不織布を巻き付け、未加硫状態のベルト成形体(未加硫ベルトスリーブ)を作製した。
作製したVリブドベルトの耐熱耐久性、耐屈曲疲労性、リブ部表面の外観の評価結果を表2に示す。
2…芯体(心線)
3…接着ゴム層
4…圧縮ゴム層
4a…研削面
5…複合層
Claims (10)
- ゴム組成物の加硫物で連続相を形成している圧縮ゴム層と芯体と伸張層とを備えるとともに、前記圧縮ゴム層の側部がプーリと接触する研削面であり、かつ前記圧縮ゴム層の底部がプーリと接触しない非研削面であるVリブドベルトであって、
前記底部の表面に、前記ゴム組成物の加硫温度で溶融しない耐熱性長繊維を含み、かつ目付量が8〜20g/m 2 である繊維集合体と、この繊維集合体の繊維間に含浸した前記ゴム組成物の加硫物とを含む複合層を有するVリブドベルト。 - 耐熱性長繊維がポリエステル繊維を含む請求項1記載のVリブドベルト。
- 繊維集合体が不織繊維構造を有する請求項1又は2記載のVリブドベルト。
- 耐熱性長繊維の平均繊維径が1〜50μmである請求項1〜3のいずれかに記載のVリブドベルト。
- 耐熱性長繊維同士が融着していない請求項1〜4のいずれかに記載のVリブドベルト。
- 圧縮ゴム層が短繊維を含む請求項1〜5のいずれかに記載のVリブドベルト。
- 繊維集合体が不織繊維構造を有し、耐熱性長繊維が所定の方向に配向しており、前記耐熱性長繊維の長手方向がベルトの長手方向と平行である請求項1〜6のいずれかに記載のVリブドベルト。
- 圧縮ゴム層がリブ部を有し、かつこのリブ部の平均厚みがVリブドベルト全体の平均厚みに対して54%以下である請求項1〜7のいずれかに記載のVリブドベルト。
- 円筒状ドラムに伸張層を形成するための伸張層用部材を装着する伸張層装着工程、さらに芯体となる心線を巻き付ける心線スピニング工程、さらに圧縮ゴム層を形成するための未加硫ゴムシートを巻き付ける圧縮ゴム層巻付工程、巻き付けた未加硫ゴムシートの上に、さらに耐熱性長繊維を含む繊維集合体を巻き付ける繊維集合体巻付工程、前記各工程により得られたベルト成形体を加硫して加硫ベルトスリーブを得る加硫工程、加硫ベルトスリーブの繊維集合体側において、圧縮ゴム層の側部のみを研削で成形する研削工程を含む請求項1〜8のいずれかに記載のVリブドベルトの製造方法。
- 繊維集合体の平均厚みが0.03〜0.15mmである請求項9記載の製造方法。
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DE102016209633A1 (de) * | 2016-06-02 | 2017-12-07 | Contitech Antriebssysteme Gmbh | Keilriemen und Verfahren zu seiner Herstellung |
CN108458050A (zh) * | 2017-02-22 | 2018-08-28 | 盖茨优霓塔传动***(苏州)有限公司 | 多楔带 |
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JP6756943B1 (ja) * | 2019-05-16 | 2020-09-16 | 三ツ星ベルト株式会社 | 伝動ベルトの心線用撚りコードとその製造方法および用途、ならびに伝動ベルト |
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