JPH08296771A - Wear resistance hose and its manufacturing method - Google Patents
Wear resistance hose and its manufacturing methodInfo
- Publication number
- JPH08296771A JPH08296771A JP7101320A JP10132095A JPH08296771A JP H08296771 A JPH08296771 A JP H08296771A JP 7101320 A JP7101320 A JP 7101320A JP 10132095 A JP10132095 A JP 10132095A JP H08296771 A JPH08296771 A JP H08296771A
- Authority
- JP
- Japan
- Prior art keywords
- hose
- molecular weight
- weight polyethylene
- rubber layer
- high molecular
- 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 11
- 229920001971 elastomer Polymers 0.000 claims abstract description 65
- 239000005060 rubber Substances 0.000 claims abstract description 65
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- -1 polyethylene Polymers 0.000 claims abstract description 11
- 239000004698 Polyethylene Substances 0.000 claims abstract description 10
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 67
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 67
- 239000000463 material Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000005299 abrasion Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 abstract description 7
- 238000004804 winding Methods 0.000 abstract description 7
- 238000004073 vulcanization Methods 0.000 description 7
- 238000000465 moulding Methods 0.000 description 6
- 229920005549 butyl rubber Polymers 0.000 description 5
- 229920002943 EPDM rubber Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Classifications
-
- 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
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- B32B2597/00—Tubular articles, e.g. hoses, pipes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、耐摩耗性ホース及び
その製造方法に係わり、更に詳しくは柔軟性等のホース
特性を損なうことなく、耐摩耗性に優れた耐摩耗性ホー
ス及びその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wear resistant hose and a method for manufacturing the hose, and more particularly, to a wear resistant hose having excellent wear resistance without impairing hose characteristics such as flexibility and a method for manufacturing the hose. It is about.
【０００２】[0002]
【従来の技術】従来、建設機械や工作機械等に使用され
る液圧ホース等、特に油圧ホースを初めとする高圧ホー
スは、特に湾曲した部分等が使用時にホース同志または
他の金属配管と接触して擦れる場合等がある。このよう
な場合、ホース本体の外管は局部的に摩耗し、酷い場合
には補強層が露出し、破壊に至ると言う問題があった。2. Description of the Related Art Conventionally, in a high pressure hose such as a hydraulic hose used for construction machines and machine tools, especially a hydraulic hose, especially a curved portion is in contact with the hoses or other metal pipes when used. It may rub against it. In such a case, there was a problem that the outer tube of the hose body was locally worn, and in a severe case, the reinforcing layer was exposed, leading to destruction.
【０００３】[0003]
【発明が解決しようとする問題点】従って、従来からホ
ース本体の外管の耐摩耗性の向上が強く望まれており、
外管ゴムに耐摩耗性を付与するために、材質を変えた
り、肉厚を厚くする等、種々の方策が検討され、また実
験等を行っていたが、液圧ホース，油圧ホースとして重
要な特性である柔軟性を悪くする等、特性のバランスを
高度に満足するホースは得られておらず、根本的な解決
には至っていないのが現状である。Therefore, it has been strongly desired to improve the wear resistance of the outer tube of the hose body.
In order to impart wear resistance to the outer tube rubber, various measures such as changing the material and increasing the wall thickness were studied and experiments were conducted, but it is important as a hydraulic hose and a hydraulic hose. A hose that highly satisfies the balance of characteristics, such as deterioration of flexibility, which is a characteristic, has not been obtained, and a fundamental solution has not yet been reached.
【０００４】この発明は、かかる従来の課題に着目して
案出されたもので、柔軟性等のホースの特性を損なうこ
となく、耐摩耗性に優れたホースを得ることが出来る耐
摩耗性ホース及びその製造方法を提供することを目的と
するものである。The present invention has been devised in view of such conventional problems, and it is possible to obtain a hose having excellent wear resistance without deteriorating the characteristics of the hose such as flexibility. And a method for manufacturing the same.
【０００５】[0005]
【課題を解決するための手段】この発明は上記目的を達
成するため、耐油性又は耐薬品性ゴム材料等のゴム材料
からなる内面ゴム層と、内面ゴム層上に積層された補強
層及びその外側に積層される外面ゴム層とから成る耐摩
耗性ホースであって、前記外面ゴム層上に、超高分子量
ポリエチレン層を一体的に設けたことを要旨とするもの
である。In order to achieve the above object, the present invention has an inner rubber layer made of a rubber material such as an oil-resistant or chemical-resistant rubber material, a reinforcing layer laminated on the inner rubber layer, and the same. A wear resistant hose comprising an outer rubber layer laminated on the outer side, the gist of which is that an ultra high molecular weight polyethylene layer is integrally provided on the outer rubber layer.
【０００６】前記超高分子量ポリエチレン層の被覆率
は、５０％以上としても良く、また超高分子量ポリエチ
レン層の肉厚を、ホース本体の長手方向に均一に形成し
たり、超高分子量ポリエチレン層の肉厚を、ホース本体
の長手方向に一定のピッチで変化するように形成するこ
とも可能である。The coverage of the ultra-high molecular weight polyethylene layer may be 50% or more, and the wall thickness of the ultra-high molecular weight polyethylene layer may be formed uniformly in the longitudinal direction of the hose body, or the ultra-high molecular weight polyethylene layer may be formed. It is also possible to form the wall thickness so as to change at a constant pitch in the longitudinal direction of the hose body.
【０００７】[0007]
【発明の作用】この発明は上記のように構成され、耐薬
品性，耐油性ゴム材料等のゴム材料から成る内面ゴム層
上に、補強層及びその外側に外面ゴム層を積層してホー
ス本体を成形し、このホース本体の外面ゴム層上に、超
高分子量ポリエチレンフィルムを巻付けて、加熱するこ
とにより外面ゴム層と超高分子量ポリエチレンフィルム
とを溶融接着して一体的に成形するものである。According to the present invention, the hose body is constructed by laminating the reinforcing layer and the outer rubber layer on the outer side of the inner rubber layer made of a rubber material such as a chemical resistant and oil resistant rubber material. The outer surface rubber layer of this hose body is wrapped with an ultra high molecular weight polyethylene film, and the outer surface rubber layer and the ultra high molecular weight polyethylene film are melt-bonded by heating to integrally form is there.
【０００８】また、方形状に形成した超高分子量ポリエ
チレンフィルムを、ホース本体の外面ゴム層上に巻付け
て超高分子量ポリエチレンフィルムの肉厚を一定に成形
したり、帯状に形成した超高分子量ポリエチレンフィル
ムを、ホース本体の外面ゴム層上に一定のピッチでスパ
イラル状に巻付けたり、更に帯状に形成した超高分子量
ポリエチレンフィルムを、ホース本体の外面ゴム層上に
一定のピッチで肉厚が変化するようにスパイラル状に巻
付けて成形するものである。Further, a rectangular ultra-high molecular weight polyethylene film is wound around the outer rubber layer of the hose body to form a uniform thickness of the ultra-high molecular weight polyethylene film or a belt-shaped ultra-high molecular weight polyethylene film. A polyethylene film is spirally wound around the outer rubber layer of the hose body at a constant pitch, or a band-shaped ultra-high molecular weight polyethylene film is formed on the outer rubber layer of the hose body at a constant pitch. It is formed by spirally winding so as to change.
【０００９】かかる構造のホースの成型に際し、使用す
るホース本体は、未加硫の状態であっても、加硫された
状態であっても、いずれも外面ゴム層に対して良好な接
着を得ることができる。即ち、超高分子量ポリエチレン
フィルムは、未加硫または加硫状態の材料と積層させ、
一体的に加熱溶融させる時、相互の分子が相互に溶融拡
散し、所謂，溶融接着（フェージョンボンディング）す
ることにより良好な接着力が得られる状態を見出したも
のであって、従来のゴム／樹脂材料に必要であった接着
剤等の接着材料を含有させることなく直接に一体成型し
得ることに特徴を有するものである。製法の一態様とし
て下記に例示するがこれに限定されるものではない。When molding a hose having such a structure, the hose body used, whether in an unvulcanized state or in a vulcanized state, has good adhesion to the outer rubber layer. be able to. That is, the ultra high molecular weight polyethylene film is laminated with an unvulcanized or vulcanized material,
It has been found that when heat-melting integrally, mutual molecules are melt-diffused with each other, and so-called melt-bonding (fasion bonding) is performed to obtain a good adhesive force. It is characterized in that it can be directly integrally molded without containing an adhesive material such as an adhesive agent which is necessary for a resin material. The following is an example of the production method, but the production method is not limited thereto.
【００１０】即ち、未加硫のゴムホース本体を使用する
場合、該ホース本体の上に、上記いずれかの方法で超高
分子量ポリエチレンフィルムを巻きつけた後、更に布の
ラッピングテープ、鉛等の金属材料、４−メチルペンテ
ン−１（ＴＰＸ）等の樹脂材料で更に被覆し、加圧加硫
時の加圧材料となす。更に加硫缶内で加圧加硫させ、ホ
ース本体を加硫させると共に、本体外管と超高分子量ポ
リエチレンとの上記溶融接着をも完了させ、前記加圧材
料を除去し本発明のホースを得る。かかる加圧、加熱条
件は、通常実施されるゴムの加硫条件のいずれでもよい
が、通常１１０〜１９０℃、好ましくは１２０〜１７０
℃、圧力１〜３０kgf ／cm2 、好ましくは 1.５〜１０
kgf ／cm2 にて行われる。That is, when an unvulcanized rubber hose body is used, an ultrahigh molecular weight polyethylene film is wound on the hose body by any of the above methods, and then a cloth wrapping tape or a metal such as lead is used. The material is further coated with a resin material such as 4-methylpentene-1 (TPX) to prepare a pressure material for pressure vulcanization. Further, the hose body is vulcanized under pressure in a vulcanizer to vulcanize the hose body, and at the same time, the melt adhesion between the outer tube of the body and the ultrahigh molecular weight polyethylene is completed, and the pressure material is removed to obtain the hose of the present invention. obtain. Such pressurization and heating conditions may be any of the rubber vulcanization conditions that are usually carried out, but are usually 110 to 190 ° C., preferably 120 to 170.
C, pressure 1 to 30 kgf / cm 2 , preferably 1.5 to 10
It is performed in kgf / cm 2 .
【００１１】また、加硫ゴムホースを使用し、上記と同
様に超高分子量ポリエチレンを配設しても、加硫外面ゴ
ム層と超高分子量ポリエチレンフィルムは、溶融接着し
強固な密着力を得ることができる。この場合加圧加熱
は、ホース本体の加硫ではなく、外面ゴムと超高分子量
ポリエチレンの溶融接着に要する時間のみでよく、通常
７０〜１５０℃好ましくは８０〜１４０℃、圧力１〜３
０kgf ／cm2 、好ましくは1.５〜１０kgf ／cm2 にて行
われる。Even if a vulcanized rubber hose is used and ultra high molecular weight polyethylene is disposed in the same manner as described above, the vulcanized outer surface rubber layer and the ultra high molecular weight polyethylene film are melt-bonded to obtain a strong adhesion. You can In this case, pressurization and heating need not be vulcanization of the hose body, but only the time required for melt-bonding the outer rubber and the ultrahigh molecular weight polyethylene, and usually 70 to 150 ° C, preferably 80 to 140 ° C, pressure 1 to 3
0 kgf / cm 2, is preferably carried out at 1.5~10kgf / cm 2.
【００１２】[0012]
【発明の実施例】図１は、この発明を実施した耐摩耗性
ホースの一部切欠した斜視図を示し、１はホース本体、
２は、ＮＲ，ＳＢＲ，ＢＲ，ＥＰＤＭ，ＣＲ，ＮＢＲ，
ＩＩＲ，Ｃｌ−ＩＩＲ，ＢＲ−ＩＩＲ及び変性ＩＩＲ等
のゴム材料、更に好ましくはＣＲ，ＮＢＲ，ＥＰＤＭ，
ブチル系ゴム材料等の耐油性、耐薬品性のゴム材料及び
これらの混合物，またはＣＲ／ＳＢＲ，ＮＢＲ／ＮＲ等
の他の汎用ゴムとの混合物より成る内面ゴム層、３はナ
イロン，ポリエステル等の補強用糸，スチールコード等
から成る編組補強層、４は、補強層３の外側に形成され
た耐摩耗，耐油性，耐候性合成ゴムからなる外面ゴム層
を示し、この外面ゴム層の材質としては、例えば、Ｎ
Ｒ，ＳＢＲ，ＢＲ，ＣＲ，ＥＰＤＭ等のポリマーおよび
それらの混合物からなるゴム材料を使用している。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a partially cutaway perspective view of an abrasion resistant hose embodying the present invention, in which 1 is a hose body,
2 is NR, SBR, BR, EPDM, CR, NBR,
Rubber materials such as IIR, Cl-IIR, BR-IIR and modified IIR, more preferably CR, NBR, EPDM,
An inner rubber layer composed of an oil-resistant and chemical-resistant rubber material such as a butyl rubber material and a mixture thereof, or a mixture with another general-purpose rubber such as CR / SBR, NBR / NR, 3 is made of nylon, polyester or the like. Braided reinforcing layers 4 made of reinforcing threads, steel cords and the like indicate outer rubber layers made of abrasion-resistant, oil-resistant and weather-resistant synthetic rubber formed on the outer side of the reinforcing layer 3. Is, for example, N
A rubber material made of a polymer such as R, SBR, BR, CR, EPDM or a mixture thereof is used.
【００１３】前記ホース本体１の外面ゴム層４上には、
超高分子量ポリエチレンフィルムを巻き付けて加熱一体
化し溶融接着させた超高分子量ポリエチレン層５が設け
てある。この超高分子量ポリエチレン層５を設けるホー
ス本体１としては、未加硫ホース，加硫ホースのいずれ
でも良く、外面ゴム層４上に超高分子量ポリエチレンフ
ィルムを巻き付けた後、加熱して溶融接着する必要があ
る。On the outer rubber layer 4 of the hose body 1,
An ultra-high molecular weight polyethylene layer 5 is provided which is formed by winding an ultra-high molecular weight polyethylene film, heat-integrating, and melt-bonding. The hose body 1 provided with the ultra high molecular weight polyethylene layer 5 may be either an unvulcanized hose or a vulcanized hose. After the ultra high molecular weight polyethylene film is wound on the outer rubber layer 4, it is heated and melt-bonded. There is a need.
【００１４】前記超高分子量ポリエチレンフィルムの厚
さは、ホース本体１の柔軟性や超高分子量ポリエチレン
フィルムの配し方を考慮して決定すればよく、最終的に
その厚さは0.０５mm〜1.０mm程度が好ましい。即ち、超
高分子量ポリエチレンフィルムは、分子量１００万以上
のロッド状の超高分子量ポリエチレンフィルムを削りだ
しにより加工しているため、厚さを0.０５mm以下に形成
すると、実質的に難しく、又、使用したとしても加圧成
型時シワが発生し好ましくない。また1.０mm以上の厚さ
の超高分子量ポリエチレンフィルムを巻き付けた場合に
は、ホース本体１の柔軟性が損なわれるため、上記の範
囲が好ましい。The thickness of the ultra-high molecular weight polyethylene film may be determined in consideration of the flexibility of the hose body 1 and the way of arranging the ultra-high molecular weight polyethylene film, and the final thickness is from 0.05 mm to About 1.0 mm is preferable. That is, since the ultra-high molecular weight polyethylene film is processed by shaving a rod-shaped ultra-high molecular weight polyethylene film having a molecular weight of 1,000,000 or more, it is practically difficult to form it with a thickness of 0.05 mm or less, and Even if it is used, wrinkles occur during pressure molding, which is not preferable. Further, when the ultra high molecular weight polyethylene film having a thickness of 1.0 mm or more is wound, the flexibility of the hose body 1 is impaired, so the above range is preferable.
【００１５】また、ホース本体１の外面ゴム層４上に超
高分子量ポリエチレン層５を配する場合、その超高分子
量ポリエチレンフィルムの被覆率としては、好ましくは
５０％以上とすることが出来る。このような超高分子量
ポリエチレンフィルムに隙間を有するホースでは、柔軟
性が更に向上し、フィルムの肉厚を増大させることが出
来る。When the ultrahigh molecular weight polyethylene layer 5 is provided on the outer rubber layer 4 of the hose body 1, the coverage of the ultrahigh molecular weight polyethylene film can be preferably 50% or more. In such a hose having a gap in the ultra high molecular weight polyethylene film, the flexibility is further improved, and the film thickness can be increased.
【００１６】次に、ホース本体１の外面ゴム層４上に超
高分子量ポリエチレンフィルムを配する方法について説
明すると、予め成形した未加硫または加硫済のホース本
体１に、図２に示すような所定の厚さに形成したシート
状の超高分子量ポリエチレンフィルム６ａを、所謂すし
巻き状（ホース本体１の軸方向と平行に巻き付ける）に
巻き付け、ホース本体１の外面ゴム層４と超高分子量ポ
リエチレンフィルム６ａとを一体化させるために、加熱
によって溶融接着を行う。Next, a method of arranging the ultra-high molecular weight polyethylene film on the outer rubber layer 4 of the hose body 1 will be described. In the pre-molded unvulcanized or vulcanized hose body 1, as shown in FIG. A sheet-shaped ultra-high molecular weight polyethylene film 6a formed to have a predetermined thickness is wound in a so-called sushi roll shape (wrapped in parallel to the axial direction of the hose body 1), and the outer rubber layer 4 of the hose body 1 and the ultra-high molecular weight film are wound. In order to integrate with the polyethylene film 6a, fusion bonding is performed by heating.
【００１７】なお、この場合、フィルムを全面に被覆し
ても、一部に隙間が生じても良い。全面被覆の場合は、
巻付け法によってはフィルム間の重なりが生ずる（いわ
ゆるラップ部）ことがあり全体にフィルム厚さが不均一
でも加圧，加熱後フィルムが溶融流動し平滑化する為に
目的は達成できる。隙間を設ける場合は、被覆率が５０
％以上であることが好ましい。５０％以下では過度に摩
耗して好ましくない。なお、この場合、隙間は製品の標
示等に必要な印刷に有利となるものである。In this case, the film may be covered on the entire surface or a gap may be partially formed. For full coverage,
Depending on the winding method, overlapping between films may occur (so-called lap portion), and even if the film thickness is not uniform, the object can be achieved because the film melts and flows and smoothes after being pressed and heated. When providing a gap, the coverage is 50
% Or more is preferable. If it is less than 50%, excessive wear is not preferable. In this case, the gap is advantageous for printing necessary for marking the product.
【００１８】この加熱処理方法としては、ホース本体１
の外面ゴム層４上に超高分子量ポリエチレンフィルム６
ａを配した後、布等を巻き付けて加硫を行うラッピング
加硫方法，ホース本体１の外面ゴム層４上に超高分子量
ポリエチレンフィルム６ａを配した後、鉛を被覆して加
硫を行う被鉛加硫法等を用い、加圧加熱温度としては、
７０℃〜２００℃、好ましくは１１０℃〜１７０℃で加
圧加熱を行うことによって、ホース本体１の外面ゴム層
４と超高分子量ポリエチレンフィルム６ａとが加熱一体
化し、溶融接着され、超高分子量ポリエチレン層５が形
成されるものである。As this heat treatment method, the hose body 1
Ultra high molecular weight polyethylene film 6 on the outer rubber layer 4 of
After arranging a, a lapping vulcanization method in which a cloth or the like is wound and vulcanization is performed. After arranging the ultra high molecular weight polyethylene film 6a on the outer rubber layer 4 of the hose body 1, lead is coated and vulcanized. Using the lead vulcanization method, etc.,
By heating under pressure at 70 ° C to 200 ° C, preferably 110 ° C to 170 ° C, the outer rubber layer 4 of the hose body 1 and the ultra-high molecular weight polyethylene film 6a are heat-integrated and melt-bonded to each other to give the ultra-high molecular weight. The polyethylene layer 5 is formed.
【００１９】また、超高分子量ポリエチレンフィルムを
配する他の方法としては、図３に示すように、帯状に形
成した超高分子量ポリエチレンフィルム６ｂをホース本
体１に対してスパイラル状に巻き付け、上記と同様な方
法により加熱加圧によって溶融接着を行い、超高分子量
ポリエチレン層５が形成されるものである。また、この
帯状に形成した超高分子量ポリエチレンフィルム６ｂの
配し方によっては、図４に示すようにホース本体１の軸
方向に超高分子量ポリエチレン層５の肉厚ｔを均一の厚
さに形成出来る他、図５に示すようにホース本体１の長
手方向に一定のピッチＬで肉厚ｔが変化するように形成
することも可能であり、更に一定のピッチで隙間を開け
て超高分子量ポリエチレンフィルム６ｂを巻付け、ホー
ス本体１に一定の隙間をもって超高分子量ポリエチレン
層５を形成することも可能である。As another method of arranging the ultra high molecular weight polyethylene film, as shown in FIG. 3, a belt-shaped ultra high molecular weight polyethylene film 6b is spirally wound around the hose body 1 and The ultra-high molecular weight polyethylene layer 5 is formed by performing melt adhesion by heating and pressing in the same manner. Further, depending on how to dispose the ultra-high molecular weight polyethylene film 6b formed in a strip shape, the wall thickness t of the ultra-high molecular weight polyethylene layer 5 is formed to have a uniform thickness in the axial direction of the hose body 1 as shown in FIG. Besides, as shown in FIG. 5, it is possible to form the hose body 1 so that the wall thickness t changes at a constant pitch L in the longitudinal direction thereof, and further, a gap is opened at a constant pitch to form an ultra high molecular weight polyethylene. It is also possible to wind the film 6b and form the ultrahigh molecular weight polyethylene layer 5 on the hose body 1 with a certain gap.
【００２０】更に、図示しないが予めホース本体１の挿
入可能な、筒状の超高分子量ポリエチレンフィルムを形
成しておき、ホース本体１を筒状の超高分子量ポリエチ
レンフィルムに挿入して加熱処理することにより筒状の
超高分子量ポリエチレンフィルムが収縮し、超高分子量
ポリエチレン層５を形成することも可能である。次に、
従来の超高分子量ポリエチレン層を有しない耐摩耗性ホ
ースと、この発明の超高分子量ポリエチレン層を有する
耐摩耗性ホースとを比較した耐摩耗性試験結果を以下の
表１と、図６のグラフに示す。Further, although not shown, a tubular ultrahigh molecular weight polyethylene film into which the hose body 1 can be inserted is formed in advance, and the hose body 1 is inserted into the tubular ultrahigh molecular weight polyethylene film for heat treatment. As a result, the tubular ultrahigh molecular weight polyethylene film shrinks, and the ultrahigh molecular weight polyethylene layer 5 can be formed. next,
A wear resistance test result comparing a conventional wear resistant hose having no ultra high molecular weight polyethylene layer with a wear resistant hose having the ultra high molecular weight polyethylene layer of the present invention is shown in Table 1 below and the graph in FIG. Shown in.
【００２１】試験方法としては、試験片となるホース本
体を複数本水平に設置し、このホース本体の外面ゴム層
上に鋭角（９０°）な鉄製治具を各ホース１本当たり同
等な一定荷重（1.５kgf 〜2.５kgf/本）をかけ、前記治
具を往復運動させて４時間当りの摩耗量及び摩耗状態、
外面ゴムの残存状態、補強層の露出の有無等を測定し
た。As a test method, a plurality of hose bodies to be test pieces are installed horizontally, and an iron jig having an acute angle (90 °) is placed on the outer rubber layer of the hose body at an equal constant load per hose. (1.5 kgf to 2.5 kgf / piece), the jig is reciprocated, and the wear amount and wear state per 4 hours are
The remaining state of the outer surface rubber and the presence or absence of the exposed reinforcing layer were measured.
【００２２】摩耗速度は、0.２００ｍ／sec ，摩耗距離
２００mmである。なお、柔軟性の４Ｄ曲げ力とは、ホー
ス本体の直径の４倍まで曲げる力を言うものである。The wear rate is 0.200 m / sec and the wear distance is 200 mm. The 4D bending force of flexibility means a bending force up to 4 times the diameter of the hose body.
【００２３】[0023]
【表１】 [Table 1]
【００２４】通常ゴムホースに比べ、外面ゴム材料素材
にかかわらず超高分子量ポリエチレンフィルムは、外面
ゴムに強く溶融接着し、極めて良好な耐摩耗性を有する
と共に、柔軟性を損なわないことがわかる。（比較例
１、実施例１〜３） また、フィルムの配し方に影響されず、ラップ部は成型
加硫均一となるため安定した柔軟性と耐摩耗性を示すこ
とがわかる。（実施例１、２） さらに、加硫ホース上に超高分子量ポリエチレンフィル
ムを巻き回した後、超高分子量ポリエチレンが溶融する
温度以上で加圧加熱することにより未加硫ホースの場合
と同様に外面ゴム層の材質によらず溶融接着し、良好な
耐摩耗性と同様な柔軟性を有することがわかる。（実施
例４、５）It can be seen that, compared with ordinary rubber hoses, the ultra-high molecular weight polyethylene film strongly melts and adheres to the outer surface rubber regardless of the material of the outer surface rubber material, has extremely good abrasion resistance, and does not impair flexibility. (Comparative Example 1, Examples 1 to 3) Further, it can be seen that the lap portion exhibits uniform flexibility and wear resistance because the vulcanized portion is uniform in molding vulcanization regardless of how the film is arranged. (Examples 1 and 2) Furthermore, after winding an ultra high molecular weight polyethylene film around a vulcanized hose, pressurizing and heating at a temperature above the melting point of the ultra high molecular weight polyethylene, in the same manner as in the case of an unvulcanized hose. It can be seen that the outer rubber layer is melt-bonded regardless of the material and has good abrasion resistance and similar flexibility. (Examples 4 and 5)
【００２５】フィルム厚さは、耐摩耗性に影響を与えな
いが、0.０４mm以下の薄肉の場合、成型中又は成型加硫
後の流動に耐えられず、しわが発生し製品外観上好まし
くなく、また1.０mm超では曲げ力の上昇が大となり好ま
しくないことがわかる。（実施例６〜８、比較例３、
４）The film thickness does not affect the wear resistance, but when the thickness is 0.04 mm or less, the film cannot withstand the flow during molding or after molding and vulcanization, and wrinkles are generated, which is not preferable in terms of product appearance. Moreover, it is understood that if the thickness exceeds 1.0 mm, the bending force is greatly increased, which is not preferable. (Examples 6 to 8, Comparative Example 3,
4)
【００２６】更に、ホース表面における超高分子量ポリ
エチレン層の被覆率は、５０％を下回った場合、摩耗量
の値が急激に大きくなり、改善効果が急激に失われるこ
とがわかる。逆に５０％以下では、その低下率は低く耐
摩耗性付与効果が大であることがわかる。（実施例９〜
１１、比較例５） 円筒状チューブを使用し、同様に成型加工しても同等の
性能のホースを得た。 〔実施例１２〕この発明にかかる超高分子量ポリエチレ
ン層を有する耐摩耗性ホースの場合には、柔軟性及び耐
摩耗性が、従来のホースに比べて優れていることが判
る。Further, when the coverage of the ultrahigh molecular weight polyethylene layer on the surface of the hose is less than 50%, the value of the amount of wear rapidly increases and the improvement effect is rapidly lost. On the other hand, when it is 50% or less, it is understood that the reduction rate is low and the effect of imparting wear resistance is large. (Example 9-
11, Comparative Example 5) A cylindrical tube was used, and a hose having the same performance was obtained by the same molding process. [Example 12] It is found that the wear-resistant hose having the ultra-high molecular weight polyethylene layer according to the present invention is superior in flexibility and wear resistance to the conventional hose.
【００２７】[0027]
【発明の効果】この発明は、上記のようにゴム材料から
成る内面ゴム層と、内面ゴム層上に積層された補強層及
びその外側に積層される外面ゴム層とから成る耐摩耗性
ホースであって、前記外面ゴム層上に、超高分子量ポリ
エチレン層を一体的に設けたので、柔軟性等のホースの
特性を損なうことなく、耐摩耗性に優れしかも長期間使
用可能なホースを得ることが出来る効果がある。As described above, the present invention is a wear-resistant hose comprising an inner rubber layer made of a rubber material, a reinforcing layer laminated on the inner rubber layer, and an outer rubber layer laminated on the outer side thereof. Since an ultra-high molecular weight polyethylene layer is integrally provided on the outer rubber layer, it is possible to obtain a hose that is excellent in wear resistance and can be used for a long time without impairing the characteristics of the hose such as flexibility. There is an effect that can be.
【図１】この発明を実施した耐摩耗性ホースの一部切欠
した斜視図である。FIG. 1 is a partially cutaway perspective view of an abrasion resistant hose embodying the present invention.
【図２】ホース本体にシート状の超高分子量ポリエチレ
ンフィルムを巻付ける方法を示す説明図である。FIG. 2 is an explanatory diagram showing a method of winding a sheet-shaped ultra high molecular weight polyethylene film around a hose body.
【図３】ホース本体に帯状の超高分子量ポリエチレンフ
ィルムを巻付ける他の方法を示す説明図である。FIG. 3 is an explanatory view showing another method of winding a band-shaped ultra high molecular weight polyethylene film around a hose body.
【図４】ホース本体に超高分子量ポリエチレンフィルム
を配した時の肉厚を示す説明図である。FIG. 4 is an explanatory view showing a wall thickness when an ultrahigh molecular weight polyethylene film is arranged on a hose body.
【図５】ホース本体に超高分子量ポリエチレンフィルム
を配した時の肉厚を示す説明図である。FIG. 5 is an explanatory view showing a wall thickness when an ultra high molecular weight polyethylene film is arranged on a hose body.
【図６】この発明に係る耐摩耗性ホースと従来の耐摩耗
性ホースとを比較した時間と摩耗量との関係を示すグラ
フ説明図である。FIG. 6 is an explanatory graph showing the relationship between the wear amount and the time when the wear resistant hose according to the present invention and the conventional wear resistant hose are compared.
１ ホース本体 ２ 内面ゴム層 ３ 補強層 ４ 外面ゴム層 ５ 超高分子量ポリエチレン層 ６ａ，６ｂ 超高分子量ポリエチレンフィルム 1 Hose Main Body 2 Inner Rubber Layer 3 Reinforcing Layer 4 Outer Rubber Layer 5 Ultra High Molecular Weight Polyethylene Layer 6a, 6b Ultra High Molecular Weight Polyethylene Film
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｂ２９Ｋ 23:00 Ｂ２９Ｌ 23:00 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location // B29K 23:00 B29L 23:00
Claims (10)
た補強層及びその外側に積層される外面ゴム層とから成
る耐摩耗性ホースであって、前記外面ゴム層上に、超高
分子量ポリエチレン層を一体的に設けたことを特徴とす
る耐摩耗性ホース。1. A wear-resistant hose comprising an inner rubber layer, a reinforcing layer laminated on the inner rubber layer, and an outer rubber layer laminated on the outer side of the inner rubber layer, wherein the outer rubber layer is super-high. A wear-resistant hose characterized by being integrally provided with a molecular weight polyethylene layer.
が、５０％以上である請求項１に記載の耐摩耗性ホー
ス。2. The wear resistant hose according to claim 1, wherein the coverage of the ultra high molecular weight polyethylene layer is 50% or more.
ホース本体の長手方向に均一に形成した請求項１に記載
の耐摩耗性ホース。3. The wear-resistant hose according to claim 1, wherein the ultra-high molecular weight polyethylene layer has a uniform wall thickness in the longitudinal direction of the hose body.
を、ホース本体の長手方向に一定のピッチで変化するよ
うに形成した請求項１または請求項２に記載の耐摩耗性
ホース。4. The wear-resistant hose according to claim 1, wherein the wall thickness of the ultra-high molecular weight polyethylene layer is formed so as to change at a constant pitch in the longitudinal direction of the hose body.
ム材料から成る請求項１ないし請求項４に記載の耐摩耗
性ホース。5. The wear resistant hose according to claim 1, wherein the inner rubber layer is made of an oil resistant or chemical resistant rubber material.
外面ゴム層を積層してホース本体を成形し、このホース
本体の外面ゴム層上に、超高分子量ポリエチレンフィル
ムを巻付けて、加熱することにより外面ゴム層と超高分
子量ポリエチレンフィルムとを溶融接着して一体的に成
形する耐摩耗性ホースの製造方法。6. A hose body is formed by laminating a reinforcing layer and an outer surface rubber layer on the outer side of the inner surface rubber layer, and wrapping an ultra high molecular weight polyethylene film on the outer surface rubber layer of the hose body, A method for producing a wear-resistant hose in which an outer rubber layer and an ultrahigh molecular weight polyethylene film are melt-bonded by heating and integrally molded.
ンフィルムを、ホース本体の外面ゴム層上に巻付けて超
高分子量ポリエチレンフィルムの肉厚を一定に成形する
請求項６に記載の耐摩耗性ホースの製造方法。7. The abrasion resistance according to claim 6, wherein the ultra-high molecular weight polyethylene film formed in a rectangular shape is wound around the outer rubber layer of the hose body to form the ultra-high molecular weight polyethylene film with a constant thickness. Hose manufacturing method.
フィルムを、ホース本体の外面ゴム層上に一定のピッチ
でスパイラル状に巻付けた請求項６に記載の耐摩耗性ホ
ースの製造方法。8. The method for producing a wear-resistant hose according to claim 6, wherein the band-shaped ultra-high molecular weight polyethylene film is spirally wound around the outer rubber layer of the hose body at a constant pitch.
フィルムを、ホース本体の外面ゴム層上に一定のピッチ
で肉厚が変化するようにスパイラル状に巻付けた請求項
６に記載の耐摩耗性ホースの製造方法。9. The wear resistance according to claim 6, wherein the band-shaped ultra-high molecular weight polyethylene film is spirally wound around the outer rubber layer of the hose body so that the wall thickness changes at a constant pitch. Hose manufacturing method.
ゴム材料から成る請求項６ないし請求項９に記載の耐摩
耗性ホースの製造方法。10. The method for manufacturing an abrasion resistant hose according to claim 6, wherein the inner rubber layer is made of an oil resistant or chemical resistant rubber material.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7101320A JPH08296771A (en) | 1995-04-25 | 1995-04-25 | Wear resistance hose and its manufacturing method |
| TW085101997A TW310300B (en) | 1995-04-25 | 1996-02-16 | |
| KR1019960007083A KR100355915B1 (en) | 1995-04-25 | 1996-03-12 | Abrasion-resistant hose and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7101320A JPH08296771A (en) | 1995-04-25 | 1995-04-25 | Wear resistance hose and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08296771A true JPH08296771A (en) | 1996-11-12 |
Family
ID=14297526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7101320A Pending JPH08296771A (en) | 1995-04-25 | 1995-04-25 | Wear resistance hose and its manufacturing method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH08296771A (en) |
| KR (1) | KR100355915B1 (en) |
| TW (1) | TW310300B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003056759A (en) * | 2001-08-20 | 2003-02-26 | Yokohama Hydex Co | Wear resistant high-pressure rubber hose and its manufacturing method |
| WO2003024685A1 (en) * | 2001-09-18 | 2003-03-27 | Woon-Yong Park | Plastic pipe of triple layers using plastic salvage and its manufacturing method and apparatus |
| CN108591636A (en) * | 2018-06-19 | 2018-09-28 | 河北西伯力特种橡胶有限公司 | Electro-hydraulic long-range feed flow super-pressure flexible pipe of control of high-wear-resistance mining heavy caliber and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106117639A (en) | 2016-06-29 | 2016-11-16 | 中裕软管科技有限公司 | A kind of ultra-high molecular weight polyethylene strengthens big flow conveying high-pressure flexible pipe and manufacture method thereof |
-
1995
- 1995-04-25 JP JP7101320A patent/JPH08296771A/en active Pending
-
1996
- 1996-02-16 TW TW085101997A patent/TW310300B/zh active
- 1996-03-12 KR KR1019960007083A patent/KR100355915B1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003056759A (en) * | 2001-08-20 | 2003-02-26 | Yokohama Hydex Co | Wear resistant high-pressure rubber hose and its manufacturing method |
| WO2003024685A1 (en) * | 2001-09-18 | 2003-03-27 | Woon-Yong Park | Plastic pipe of triple layers using plastic salvage and its manufacturing method and apparatus |
| CN108591636A (en) * | 2018-06-19 | 2018-09-28 | 河北西伯力特种橡胶有限公司 | Electro-hydraulic long-range feed flow super-pressure flexible pipe of control of high-wear-resistance mining heavy caliber and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR960037276A (en) | 1996-11-19 |
| KR100355915B1 (en) | 2004-05-27 |
| TW310300B (en) | 1997-07-11 |
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