JPS62259912A - Conveyor belt - Google Patents
Conveyor beltInfo
- Publication number
- JPS62259912A JPS62259912A JP61101495A JP10149586A JPS62259912A JP S62259912 A JPS62259912 A JP S62259912A JP 61101495 A JP61101495 A JP 61101495A JP 10149586 A JP10149586 A JP 10149586A JP S62259912 A JPS62259912 A JP S62259912A
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- conveyor belt
- base material
- rubber layer
- short
- 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.)
- Granted
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 58
- 239000005060 rubber Substances 0.000 claims abstract description 58
- 239000000835 fiber Substances 0.000 claims abstract description 46
- 150000001875 compounds Chemical class 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 18
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003063 flame retardant Substances 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000003578 releasing effect Effects 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 4
- 239000004760 aramid Substances 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- IVORCBKUUYGUOL-UHFFFAOYSA-N 1-ethynyl-2,4-dimethoxybenzene Chemical compound COC1=CC=C(C#C)C(OC)=C1 IVORCBKUUYGUOL-UHFFFAOYSA-N 0.000 claims description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 7
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 206010042496 Sunburn Diseases 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、高熱の輸送物、例えば製鉄プロセス中の焼
結鉱のような数百℃にも及ぶ赤熱塊を次工程まで輸送す
る際に用いられるベルトコンベヤのコンベヤベルトに関
するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention is useful for transporting high-temperature objects, such as red-hot lumps such as sintered ore during the steel manufacturing process, which reach temperatures of several hundred degrees Celsius, to the next process. This invention relates to a conveyor belt of a belt conveyor used.
一般に、前記のような高温の加熱物の輸送用コンベヤベ
ルトとしては、耐熱性に優れたエチレン−プロピレンゴ
ム（以下ｒＥＰＭＪと略す）等のゴムを帆布等のベルト
芯体を被覆するカバーゴム層に用いた耐熱性ゴムベルト
が用いられている。In general, conveyor belts for transporting high-temperature heated materials as described above use rubber such as ethylene-propylene rubber (hereinafter referred to as rEPMJ), which has excellent heat resistance, as a cover rubber layer that covers a belt core such as canvas. A heat-resistant rubber belt is used.
しかしながら、上記のような耐熱性ゴムベルトからなる
コンベヤベルトは、熱による硬化タラッりには耐久性を
有するが、加熱物の輸送には充分な性能を備えていない
。すなわち、上記耐熱性ゴムベルトは、カバーゴム層が
有機物からなるＥＰＭによって構成されており、ＥＰＭ
の分解温度がほぼ３００〜４００℃であるため、前記の
ような数百℃にも及ぶ赤熱塊に接触すると、その接触部
分が焼損炭化して焼けくぼみ化し、部分的に強度が弱く
なり、長期間使用しえないという難点を存している。上
記ＥＰＭに代えて他の種類のゴムを用いても同様の結果
を招来する。そこで、本発明者らは、上記のようなカバ
ーゴム層の焼けくぼみの発生を防止するため一連の研究
を重ねた結果、アスベスト繊維やアラミド系繊維の短繊
維をゴム組成物に含有させこのゴム組成物をゴムベルト
化すると、ゴムベルト化時に上記難燃繊維がベルトの表
面と平行に配向し、それによって上記赤熱塊に接触して
も焼けくぼみの発生およびその成長が抑制されベルトが
長寿命化することを見いだした。しかしながら、さらに
耐焼けくぼみ性に優れたコンベヤベルトを提供すること
ができれば一層コンベヤベルトを長寿命化でき、超高熱
赤熱物の輸送も可能となる。However, although conveyor belts made of heat-resistant rubber belts as described above have durability against curing due to heat, they do not have sufficient performance for transporting heated objects. That is, in the heat-resistant rubber belt, the cover rubber layer is made of EPM made of an organic substance, and the EPM
The decomposition temperature of 300 to 400°C is approximately 300 to 400°C, so when it comes into contact with a red-hot mass that reaches several hundred degrees Celsius, the contact area burns out and becomes carbonized, forming a burnt hole, weakening the strength in some areas, and causing long-term damage. It has the disadvantage that it cannot be used for a certain period of time. Similar results may be obtained if other types of rubber are used in place of the EPM. Therefore, the inventors of the present invention have conducted a series of studies in order to prevent the occurrence of burnt dents in the cover rubber layer as described above, and as a result, they have incorporated short fibers such as asbestos fibers and aramid fibers into the rubber composition. When the composition is made into a rubber belt, the flame-retardant fibers are oriented parallel to the surface of the belt when the composition is made into a rubber belt, thereby suppressing the occurrence and growth of burnt dents even when they come into contact with the red-hot mass, thereby extending the life of the belt. I found out. However, if a conveyor belt with even better resistance to burnout and denting can be provided, the life of the conveyor belt can be further extended, and it becomes possible to transport ultra-high heat and red-hot materials.
この発明は、このような事情に鑑みなされたもので、耐
焼けくぼみ性の一層の向上をその目的とする。This invention was made in view of these circumstances, and its purpose is to further improve the resistance to sunburn and denting.
上記の目的を達成するため、この発明のコンベヤベルト
は、ベルト芯体と、これを被覆するカバーゴム層とを備
えたコンベヤベルトであって、上記カバーゴム層が、母
材となるゴム成分と、この母材中に分散される難燃繊維
の短繊維と、上記母材中に分散される熱時水放出性化合
物の粉末と、その他の任意成分とから構成されていると
いう構成をとる。In order to achieve the above object, the conveyor belt of the present invention is a conveyor belt comprising a belt core and a cover rubber layer covering the belt core, wherein the cover rubber layer is a base material rubber component. , short fibers of flame retardant fibers dispersed in the base material, powder of a compound capable of releasing water during heating dispersed in the base material, and other optional components.
本発明者らは、上記コンベヤベルトの耐焼けくぼみ性の
向上を図るため、さらに研究を重ねた結果、従来からコ
ンベヤベルトのような重量物搬送用ベルトの難燃化材と
しては、多量使用により強度等の低下を招くためその使
用が規制されていた水酸化アルミニウム粉末等の熱時水
放出性化合物粉末を上記難燃繊維の短繊維と組み合わせ
ると、耐焼けくぼみ性が極めて向上することを見いだし
この発明に到達した。The inventors of the present invention have conducted further research in order to improve the burn-indentation resistance of the above-mentioned conveyor belts. It has been discovered that when a powder of a compound that releases water when hot, such as aluminum hydroxide powder, whose use has been restricted due to a decrease in strength, is combined with the short flame-retardant fibers mentioned above, the resistance to denting from burning can be greatly improved. We have arrived at this invention.
この発明のコンベヤベルトは、上記のようにベルト芯体
と、これを被覆するカバーゴム層とを備え、上記カバー
ゴム層が、ゴム成分と、難燃繊維の短繊維と、熱時水放
出性化合物粉末と、その他の任意成分とを用いて構成さ
れている。The conveyor belt of the present invention includes a belt core and a cover rubber layer covering the belt core as described above, and the cover rubber layer includes a rubber component, short flame-retardant fibers, and a water-releasing property when heated. It is composed of compound powder and other optional ingredients.
上記ベルト芯体としては、特に制限するものではなく、
帆布等の、通常コンベヤベルトの芯体として用いられる
ものを使用することができる。The above belt core is not particularly limited,
Materials commonly used as the core of conveyor belts, such as canvas, can be used.
また、これを被覆するカバーゴム層におけるゴム成分も
特に制限するものではなく、先に述べたＥＰＭの他、天
然ゴム（以下ｒＮＲＪと略す）。Further, the rubber component in the cover rubber layer that covers this is not particularly limited, and may include natural rubber (hereinafter abbreviated as rNRJ) in addition to the above-mentioned EPM.
スチレン−ブタジェンゴム（以下ｒＳＢＲＪと略す）、
ニトリルゴム、クロロプレンゴム等広くコンベヤベルト
に用いられる従来公知のゴムを適宜に使用することがで
きる。しかしながら、ＥＰＭを使用する場合に、好結果
がもたらされる。Styrene-butadiene rubber (hereinafter abbreviated as rSBRJ),
Conventionally known rubbers widely used for conveyor belts, such as nitrile rubber and chloroprene rubber, can be used as appropriate. However, good results are achieved when using EPM.
上記ゴム成分は、カバーゴム層の母材となるものであり
、上記母材中に難燃繊維の短繊維および熱時水放出性化
合物粉末が分散含有される。難燃繊維（不燃繊維も含む
）としては、アスベスト繊維、アラミド系繊維、ガラス
繊維、カーボン繊維、ボロン繊維および金属繊維等があ
げられ、これらは短繊維状で使用される。特に、これら
の繊維はその繊維長を１〜２０ｍに設定することが好適
である。すなわち、繊維長が１１ｍ未満では耐焼けくぼ
み性の向上の効果が少なく、逆に２０ｍを超えると、生
成コンベヤベルトの加工が困難となる傾向が見られるか
らである。そして、このような難燃繊維の短繊維は、上
記母材ゴム成分１００重量部（以下「部」と略す）に対
し、０．５〜２０部の割合で使用することが好ましい。The rubber component serves as a base material for the cover rubber layer, and short flame-retardant fibers and powder of a compound that releases water when heated are dispersed in the base material. Examples of flame-retardant fibers (including noncombustible fibers) include asbestos fibers, aramid fibers, glass fibers, carbon fibers, boron fibers, and metal fibers, which are used in the form of short fibers. In particular, it is preferable that these fibers have a fiber length of 1 to 20 m. That is, if the fiber length is less than 11 m, the effect of improving the dent resistance is small, and if it exceeds 20 m, processing of the produced conveyor belt tends to become difficult. The short fibers of such flame-retardant fibers are preferably used in a proportion of 0.5 to 20 parts per 100 parts by weight (hereinafter abbreviated as "parts") of the base rubber component.
上記使用量が０．５部未満になると、耐焼けくぼみ性が
不充分となり、２０部を超えると、曲げ疲労性等の耐久
性が悪化する傾向が見られるからである。上記難燃繊維
の短繊維とともに用いられる熱時水放出性化合物の粉末
としては、水酸化アルミニウム、水酸化マグネシウム、
水酸化ジルコニウムのような水酸化物の微粉末が用いら
れる。このような熱時水放出性化合物の微粉末は微粒子
状であることが好ましく、特に粒子径が１００μｍ以下
のものを用いることが好結果をもたらす。そして、この
ような熱時水放出性化合物粉末は、上記母材ゴム成分１
００部に対して１０〜１５０部使用することが好適であ
る。使用量が１０部未満になると、効果が不充分になり
、逆に１５０部を超えると、ゴム強度、特に耐摩耗性に
欠けるようになるからである。This is because if the amount used is less than 0.5 parts, the resistance to denting will be insufficient, and if it exceeds 20 parts, durability such as bending fatigue resistance will tend to deteriorate. Examples of the powder of the compound that releases water when heated to be used together with the short fibers of the flame retardant fibers include aluminum hydroxide, magnesium hydroxide,
A fine powder of a hydroxide such as zirconium hydroxide is used. It is preferable that the fine powder of such a hot water-releasing compound is in the form of fine particles, and in particular, the use of particles having a particle size of 100 μm or less brings about good results. And, such a hot water-releasing compound powder is made of the above-mentioned base rubber component 1.
It is suitable to use 10 to 150 parts per 00 parts. If the amount used is less than 10 parts, the effect will be insufficient, whereas if it exceeds 150 parts, the rubber strength, particularly the abrasion resistance, will be lacking.
このように熱時水放出性化合物の粉末と上記難燃繊維の
短繊維とを組み合わせることにより耐焼けくぼみ性の著
しく向上したコンベヤベルトが得られるようになるので
あり、これがこの発明の最大の特徴である。In this way, by combining the powder of the compound that releases water when heated and the short fibers of the above-mentioned flame-retardant fibers, it is possible to obtain a conveyor belt with significantly improved resistance to denting, and this is the greatest feature of the present invention. It is.
なお、この発明のコンベヤベルトには上記の必須成分と
ともにホワイトカーボンおよびシランカップリング剤を
任意成分として必要に応じ使用することができる。上記
ホワイトカーボンおよびシランカップリング剤を使用す
ると、上記熱時水放出性化合物粉末の使用量をそれほど
増やすことなく良好な耐焼けくぼみ性が得られるように
なる。In addition to the above-mentioned essential components, white carbon and a silane coupling agent may be used as optional components in the conveyor belt of the present invention, if necessary. When the white carbon and silane coupling agent are used, good anti-scorching depression properties can be obtained without significantly increasing the amount of the hot water-releasing compound powder used.
この場合、ホワイトカーボンは母材ゴム成分１００部に
対して５〜５０部使用することが好ましい。In this case, it is preferable to use 5 to 50 parts of white carbon per 100 parts of the base rubber component.
ホワイトカーボンの使用量が５部未満になると効果が不
充分になり、５０部を超えるとコンベヤベルトの加工が
困難となる傾向がみられる。また、シランカップリング
剤は、特に限定するものではなく、従来公知のものを従
来と同様な仕様で使用すればよい。When the amount of white carbon used is less than 5 parts, the effect becomes insufficient, and when it exceeds 50 parts, processing of the conveyor belt tends to become difficult. Further, the silane coupling agent is not particularly limited, and a conventionally known one may be used with the same specifications as conventionally used.
なお、この発明のコンベヤベルトには、上記の成分以外
にカーボンブラック、軟化剤、加工助剤、加硫剤等を必
要に応じ適宜選択使用することができる。In addition to the above-mentioned components, carbon black, a softener, a processing aid, a vulcanizing agent, etc. may be appropriately selected and used in the conveyor belt of the present invention as required.
この発明のコンベヤベルトは、上記原料を使用し、例え
ばつぎのようにして製造することができる。すなわち、
ベルト芯体となる芯体帆布に、カバーゴム層に使用する
ゴムと接着性のよいゴムをトッピング加工し、ついでこ
のトッピング加工済芯体帆布をカレンダーに掛け、その
表面および裏面にカバーゴム層と同種のゴムからなる中
間ゴム層を形成する。他方、カレンダー成形によりカバ
ーゴム層となるゴムシートをつくり、このゴムシートと
、上記中間ゴム層付芯体帆布とを長尺プレスに掛は徐々
に加硫と圧着を施し、芯体帆布の表面および裏面をカバ
ーゴム層で被覆する。この場合、上記中間ゴム層は、必
要がないときには除去してもよい。The conveyor belt of the present invention can be manufactured using the above-mentioned raw materials, for example, in the following manner. That is,
The core canvas, which will become the belt core, is topped with a rubber that has good adhesion to the rubber used for the cover rubber layer.The topped core canvas is then placed in a calendar, and the cover rubber layer is applied to the front and back sides of the core canvas. An intermediate rubber layer made of the same type of rubber is formed. On the other hand, a rubber sheet that will become the cover rubber layer is made by calender molding, and this rubber sheet and the core canvas with the intermediate rubber layer are put through a long press and gradually vulcanized and crimped to form the surface of the core canvas. and the back side is covered with a cover rubber layer. In this case, the intermediate rubber layer may be removed when unnecessary.
このような一連の工程を経由することによりコンベヤベ
ルトが製造される。A conveyor belt is manufactured through such a series of steps.
〔発明の効果〕
以上のように、この発明のコンベヤベルトは、ベルト芯
体と、これを被覆するカバーゴム層とを備えたコンベヤ
ベルトであって、上記カバーゴム層が、母材となるゴム
成分と、この母材中に分散される難燃繊維の短繊維と、
上記母材中に分散される熱時水放出性化合物の粉末と、
その他の任意成分とから構成されているため、耐焼けく
ぼみ性が著しく向上している。したがって、製鉄プロセ
ス中において数百°Ｃにも及ぶ赤熱塊を、焼けくぼみを
殆ど生じさせることなく輸送することができ、橿めて長
寿命のものとなる。また、上記のように耐焼けくぼみ性
が著しく向上しているため、上記赤熱塊よりも高温の加
熱物体の輸送にも適用できるようになり、適用範囲の拡
大効果をももたらすようになるのである。しかも、上記
コンベヤベルトは自己消化性を備えているため、安全で
ある。[Effects of the Invention] As described above, the conveyor belt of the present invention is a conveyor belt comprising a belt core and a cover rubber layer covering the belt core, wherein the cover rubber layer is made of rubber serving as a base material. component, short fibers of flame retardant fibers dispersed in this matrix,
A powder of a hot water-releasing compound dispersed in the base material;
Since it is composed of other optional ingredients, the resistance to sunburn and denting is significantly improved. Therefore, during the steel manufacturing process, red-hot lumps that reach temperatures of several hundred degrees Celsius can be transported without causing any burnt dents, resulting in a long service life. In addition, as mentioned above, the heat sinking resistance has been significantly improved, so it can be used to transport heated objects at a higher temperature than the above-mentioned red-hot lumps, and it will also have the effect of expanding the range of applications. . Furthermore, the conveyor belt is self-extinguishing and therefore safe.
つぎに、実施例について比較例と併せて説明する。Next, examples will be described together with comparative examples.
〔実施例１〜８、比較例１，２〕
後記の第１表に示す原料を同表に示す割合で配合して配
合物をつくり、これを通常の混合機で混合してゴム組成
物をつくった。他方、芯体帆布の表面および裏面に未加
硫のＳＢＲをトッピング加工しカレンダーに掛けた。そ
して、前記のようにして得られたゴム組成物をカレンダ
ーを通してゴムシート化し、これを上記芯体帆布の表面
および裏面に重ね長尺プレス機に掛は徐々に加硫と圧着
を施してコンベヤベルト化した。そして、得られたコン
ベヤベルトの性能試験を下記のように行いその結果を後
記の第１表に併せて示した。[Examples 1 to 8, Comparative Examples 1 and 2] A compound was prepared by blending the raw materials shown in Table 1 below in the proportions shown in the same table, and this was mixed in a normal mixer to form a rubber composition. I made it. On the other hand, the front and back surfaces of the core canvas were topped with unvulcanized SBR and calendered. Then, the rubber composition obtained as described above is passed through a calender to form a rubber sheet, and this is layered on the front and back sides of the core canvas, passed through a long press, and gradually vulcanized and crimped, and then transferred to a conveyor belt. It became. The obtained conveyor belt was then subjected to a performance test as described below, and the results are also shown in Table 1 below.
第１表の結果から、実施測高は、比較測高に比べていず
れも焼けくぼみ深さが大幅に浅くなっており耐焼けくぼ
み性に優れていることがわかる。From the results in Table 1, it can be seen that the actual height measurements had significantly shallower dent depths than the comparative height measurements, and were superior in resistance to dents.
（性能試験）
耐焼けくぼみ性：直径２５ｍの鉄球を５５０℃およびＳ
ＯＯ℃に加熱し、こ
れを試料上にそれぞれ１分間
載置してそのＲ置部の焼損深
さを測定し、比較例２におけ
る５５０℃の赤熱鉄球を載置
した場合における焼損深さを
１００とし、これを基準にし
相対値を求めた。(Performance test) Heat dent resistance: Iron ball with a diameter of 25m was heated at 550℃ and S
The sample was heated to OO℃ and placed on the sample for 1 minute each to measure the burnout depth of the R placement part, and the burnout depth when the 550℃ red-hot iron ball in Comparative Example 2 was placed. 100, and relative values were calculated using this as a standard.
硬さ試験： ＪｒＳＡに準拠して行った。Hardness test: Conducted in accordance with JrSA.
Ｔ、 ：ＪＩＳ規定に準拠して試料破断時の引張強さ
く ｋｇ ／ ｃＩＩｌ ）を求めた。T: Tensile strength (kg/cIIl) at sample breakage was determined in accordance with JIS regulations.
Ｅ、 ：ＪＩＳ規定に準拠して試料破断時の伸び（％
）を求めた。E,: Elongation at sample breakage (%) in accordance with JIS regulations
) was sought.
自己消火性：コンベヤベルトを１５Ｘ２０ｃｍ、厚さ５
鶴に設定し、ベルトの変形
防止のため加熱面の裏側に金網を
張った状態でその表面を火炎温度
９１０℃のブンゼンバーナで２分
間加熱し、ついで炎を取り除き消
火までの時間を測定した。このと
き、ブンゼンバーナの火口からゴ
ムシートまでの距離は１００ｎに
設定した。Self-extinguishing property: conveyor belt 15x20cm, thickness 5
The heating surface was heated for 2 minutes using a Bunsen burner with a flame temperature of 910° C., with a wire mesh stretched on the back side of the heating surface to prevent belt deformation, and then the flame was removed and the time until extinguishment was measured. At this time, the distance from the Bunsen burner crater to the rubber sheet was set to 100n.
（以下余白） つぎに、実施例２および７品について耐久性を調べた。(Margin below) Next, the durability of Examples 2 and 7 products was investigated.
すなわち、直径２５ｍｍの鉄球を８００℃に加熱し１分
間試料上に載置したのち、３０分冷却し、ついで炭化し
たゴム分を除去し、さらに８００°Ｃの鉄球を１分間載
置するというサイクルを１０回繰返し、そのときの焼け
くぼみ量を、比較例２の１回目の焼けくぼみ量を基準（
１００として）にし相対値として求めた。その結果を第
１図に示す。図において、曲線Ａは実施例２の繰返し−
焼け（ぼみ組曲線、曲線Ｂは実施例７の繰返し−焼けく
ぼみ組曲線、曲線Ｃは比較例２の繰返し−焼けくぼみ組
曲線である。曲線Ａ、Ｂと曲線Ｃの対比とから明らかな
ように、実施測高は８００℃の鉄球を繰返し載置しても
焼けくぼみ量は比較例２に比べて大幅に少なく、したが
って、掻めて長寿命であることがわかる。That is, an iron ball with a diameter of 25 mm is heated to 800°C and placed on the sample for 1 minute, then cooled for 30 minutes, the carbonized rubber is removed, and the iron ball at 800°C is placed on the sample for 1 minute. This cycle was repeated 10 times, and the amount of burnt dents at that time was determined based on the amount of scorched dents from the first time in Comparative Example 2 (
100) and was calculated as a relative value. The results are shown in FIG. In the figure, curve A is the repetition of Example 2 -
Curve B is the repetition-burn depression combination curve of Example 7, and curve C is the repetition-burn depression combination curve of Comparative Example 2. As can be seen, even when an iron ball at 800° C. is repeatedly placed on the actual height measurement, the amount of burnt dents is significantly smaller than that of Comparative Example 2, which indicates that it has a long life.
図面はコンベヤヘルドの繰返し−焼けくぼみ量的線図で
ある。The drawing is a quantitative diagram of the repeat-burn indentation of the conveyor heald.
Claims (4)
備えたコンベヤベルトであつて、上記カバーゴム層が、
母材となるゴム成分と、この母材中に分散される難燃繊
維の短繊維と、上記母材中に分散される熱時水放出性化
合物の粉末と、その他の任意成分とから構成されている
ことを特徴とするコンベヤベルト。(1) A conveyor belt comprising a belt core and a cover rubber layer covering the belt core, the cover rubber layer comprising:
It is composed of a rubber component as a base material, short flame-retardant fibers dispersed in this base material, powder of a compound that releases water when hot dispersed in the base material, and other optional components. A conveyor belt characterized by:
アラミド系繊維の短繊維ガラス繊維の短繊維、カーボン
繊維の短繊維、ボロン繊維の短繊維および金属繊維の短
繊維からなる群から選択された少なくとも一つの短繊維
である特許請求の範囲第１項記載のコンベヤベルト。(2) The short fibers of flame retardant fibers are short fibers of asbestos fibers,
Claim 1: Short fibers of aramid fibers are at least one short fiber selected from the group consisting of short fibers of glass fibers, short fibers of carbon fibers, short fibers of boron fibers, and short fibers of metal fibers. Conveyor belt as described.
酸化マグネシウムおよび水酸化ジルコニウムからなる群
から選択された少なくとも一つの化合物である特許請求
の範囲第１項または第２項記載のコンベヤベルト。(3) The conveyor belt according to claim 1 or 2, wherein the compound capable of releasing water when heated is at least one compound selected from the group consisting of aluminum hydroxide, magnesium hydroxide, and zirconium hydroxide. .
プリング剤である特許請求の範囲第１項ないし第３項の
いずれかに記載のコンベヤベルト。(4) The conveyor belt according to any one of claims 1 to 3, wherein the optional components are white carbon and a silane coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61101495A JPS62259912A (en) | 1986-04-30 | 1986-04-30 | Conveyor belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61101495A JPS62259912A (en) | 1986-04-30 | 1986-04-30 | Conveyor belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62259912A true JPS62259912A (en) | 1987-11-12 |
| JPH0512243B2 JPH0512243B2 (en) | 1993-02-17 |
Family
ID=14302238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61101495A Granted JPS62259912A (en) | 1986-04-30 | 1986-04-30 | Conveyor belt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62259912A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63176205A (en) * | 1987-01-12 | 1988-07-20 | Bando Chem Ind Ltd | Low abrasive/heat generating conveyor belt |
| JP2010230520A (en) * | 2009-03-27 | 2010-10-14 | Yokohama Rubber Co Ltd:The | Method for evaluation of heat resistance in conveyor belt |
| US20120329591A1 (en) * | 2010-05-11 | 2012-12-27 | Hubert Goeser | Belt for driving systems, in particular a belt-like tensile element for elevator systems, having fire-inhibiting properties |
| US20150259176A1 (en) * | 2012-11-09 | 2015-09-17 | Contitech Antriebssysteme Gmbh | Belt for drive technology, particularly a belt-like tractive element for elevator technology, with fire-resistant properties |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60137645A (en) * | 1983-12-27 | 1985-07-22 | 横浜ゴム株式会社 | Heat-resistant conveyor belt |
| JPS60177042A (en) * | 1984-02-21 | 1985-09-11 | Ube Ind Ltd | Rubber belt |
| JPS60219034A (en) * | 1984-04-16 | 1985-11-01 | Mitsuboshi Belting Ltd | Manufacturing of short fiber reinforced elastic sheet |
-
1986
- 1986-04-30 JP JP61101495A patent/JPS62259912A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60137645A (en) * | 1983-12-27 | 1985-07-22 | 横浜ゴム株式会社 | Heat-resistant conveyor belt |
| JPS60177042A (en) * | 1984-02-21 | 1985-09-11 | Ube Ind Ltd | Rubber belt |
| JPS60219034A (en) * | 1984-04-16 | 1985-11-01 | Mitsuboshi Belting Ltd | Manufacturing of short fiber reinforced elastic sheet |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63176205A (en) * | 1987-01-12 | 1988-07-20 | Bando Chem Ind Ltd | Low abrasive/heat generating conveyor belt |
| JP2010230520A (en) * | 2009-03-27 | 2010-10-14 | Yokohama Rubber Co Ltd:The | Method for evaluation of heat resistance in conveyor belt |
| US20120329591A1 (en) * | 2010-05-11 | 2012-12-27 | Hubert Goeser | Belt for driving systems, in particular a belt-like tensile element for elevator systems, having fire-inhibiting properties |
| EP2569242B1 (en) | 2010-05-11 | 2019-09-04 | ContiTech Antriebssysteme GmbH | Belt for driving systems, in particular a belt-like tensile element for elevator systems, having fire-inhibiting properties |
| US20150259176A1 (en) * | 2012-11-09 | 2015-09-17 | Contitech Antriebssysteme Gmbh | Belt for drive technology, particularly a belt-like tractive element for elevator technology, with fire-resistant properties |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0512243B2 (en) | 1993-02-17 |
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