JP3084481B2 - Manufacturing method of resin hose - Google Patents
Manufacturing method of resin hoseInfo
- Publication number
- JP3084481B2 JP3084481B2 JP02299801A JP29980190A JP3084481B2 JP 3084481 B2 JP3084481 B2 JP 3084481B2 JP 02299801 A JP02299801 A JP 02299801A JP 29980190 A JP29980190 A JP 29980190A JP 3084481 B2 JP3084481 B2 JP 3084481B2
- Authority
- JP
- Japan
- Prior art keywords
- cement
- resin hose
- concentration
- ester
- peripheral surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、樹脂ホースの製造方法に係わり、更に詳
しくは樹脂ホースの破壊圧力や、インパルス性能を向上
させた樹脂ホースの製造方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a resin hose, and more particularly, to a method for manufacturing a resin hose with improved burst pressure and impulse performance of the resin hose. is there.
従来、樹脂ホースの製造方法としては、例えばポリエ
ステルチューブの周面に、熱軟化性接着剤であるエステ
ル系ウレタンセメント（接着剤）を塗布し、この周面
に、ポリエステル無撚補強糸を施した後、ウレタンカバ
ーを被覆することにより製造されるものである。Conventionally, as a method for manufacturing a resin hose, for example, an ester-based urethane cement (adhesive), which is a heat-softening adhesive, was applied to the peripheral surface of a polyester tube, and a polyester non-twisted reinforcing yarn was applied to the peripheral surface. Thereafter, it is manufactured by coating a urethane cover.
そして、上記のような熱軟化性接着剤であるエステル
系ウレタンセメントの濃度は、メチルエチルケトン（ME
K）を、50％の割合で配合し、これを常温にてポリエス
テルチューブの周面に塗布され、ポリエステルチューブ
とポリエステル無撚補強糸との間の接着を行っている。The concentration of the ester-based urethane cement, which is a heat-softening adhesive as described above, is determined by using methyl ethyl ketone (ME
K) was blended at a rate of 50%, and the mixture was applied to the peripheral surface of a polyester tube at room temperature to bond the polyester tube and the polyester non-twisted reinforcing yarn.
然しながら、上記のようなエステル系ウレタンセメン
トの塗布方法では、セメントが補強糸内に浸み込み、補
強糸のフィラメントを強く拘束させる。この為に、補強
糸に引張力が作用した場合、補強糸のうち拘束力の強い
部分に応力が集中し、フィラメント切れを起こす事か
ら、樹脂ホース全体としては、所定の破壊圧力及びイン
パルス性能と言う樹脂ホースの性能を低下させる原因と
なっていた。However, in the above-described method of applying the ester-based urethane cement, the cement soaks into the reinforcing yarn and strongly restrains the filament of the reinforcing yarn. For this reason, when a tensile force acts on the reinforcing yarn, stress concentrates on a portion of the reinforcing yarn where the binding force is strong, and the filament breaks, so that the resin hose as a whole has a predetermined breaking pressure and impulse performance. This was the cause of the deterioration in the performance of the resin hose.
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、エステル系ウレタンセメントの濃度を従来に比
べて薄くし、これをポリエステルチューブの周面に塗布
することで、チューブと補強糸との間のセメント濃度を
適量に保ち、フィラメント切れを有効に防止して樹脂ホ
ース全体として、ホースの性能である所定の破壊圧力及
びインパルス性能を向上させることが出来る樹脂ホース
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 a conventional problem. The concentration of the ester-based urethane cement is made thinner than in the past, and this is applied to the peripheral surface of the polyester tube, so that the tube and the reinforcing yarn are formed. The present invention provides a method for manufacturing a resin hose capable of maintaining a proper cement concentration between the resin hose and the filament, effectively preventing the filament from being cut, and improving the predetermined breaking pressure and impulse performance of the hose as a whole. The purpose is to do so.
この発明は上記目的を達成するため、ポリエステルチ
ューブの周面に、溶媒に対してセメント濃度が５％〜40
％の熱軟化性エステル系ウレタンセメントを塗布し、こ
の周面に、ポリエステル無撚補強糸を施した後、ウレタ
ンカバーを被覆することを要旨とするものである。According to the present invention, in order to achieve the above object, a cement concentration of 5% to 40% with respect to a solvent is provided on a peripheral surface of a polyester tube.
% Of the heat-softening ester-based urethane cement is applied, the polyester non-twisted reinforcing yarn is applied to the peripheral surface, and then the urethane cover is covered.
この発明は、上記のように構成され、熱軟化性エステ
ル系ウレタンセメントの濃度を、溶媒に対して５％〜40
％、好ましくは８〜30％に保つことで、ポリエステルチ
ューブの周面に、エステル系ウレタンセメントを、均一
に、しかも薄く塗布することが出来、チューブと補強糸
との間のセメント濃度を適量に保つ事が可能となり、ま
た補強糸内のセメント過剰含浸を防ぐことが出来るの
で、樹脂ホース全体して、ホースの性能である所定の破
壊圧力及びインパルス性能を向上させることが出来るも
のである。The present invention is configured as described above, and adjusts the concentration of the heat-softening ester-based urethane cement to 5% to 40% with respect to the solvent.
%, Preferably 8 to 30%, it is possible to apply the ester-based urethane cement uniformly and thinly on the peripheral surface of the polyester tube, and to adjust the cement concentration between the tube and the reinforcing thread to an appropriate amount. Since the resin hose can be maintained and the cement can be prevented from being excessively impregnated in the reinforcing yarn, it is possible to improve the predetermined burst pressure and impulse performance, which are the performance of the hose, as a whole of the resin hose.
以下、添付図面に基づき、この発明の実施例を説明す
る。Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
第１図は、この発明を実施した樹脂ホース本体１の一
部切欠した斜視図を示し、この樹脂ホース本体１は、ポ
リエステルチューブ２の周面に、溶媒としてのメチルエ
チルケトンに対してセメントの濃度が５％〜40％のエス
テル系ウレタンセメント３を均一に塗布し、更にこの周
面に、ポリエステル無撚補強糸４を施した後、ウレタン
カバー５を被覆して製造するものである。FIG. 1 is a partially cut-away perspective view of a resin hose body 1 embodying the present invention. In the resin hose body 1, the concentration of cement with respect to methyl ethyl ketone as a solvent on the peripheral surface of a polyester tube 2 is shown. The polyester urethane cement 3 of 5% to 40% is uniformly applied, the polyester non-twisted reinforcing yarn 4 is applied to the peripheral surface, and the urethane cover 5 is coated.
上記のエステル系ウレタンセメント３の濃度として
は、後述する実験の結果、樹脂ホース全体として、ホー
スの性能である所定の破壊圧力及びインパルス性能を考
慮した場合、８％〜30％が好ましい。The concentration of the above-mentioned ester-based urethane cement 3 is preferably 8% to 30% in consideration of a predetermined breaking pressure and impulse performance, which are the performances of the resin hose as a whole, as a result of an experiment described later.
次に、エステル系ウレタンセメント３の濃度と、破壊
圧力，インパルス走行性能について実験した結果、以下
の表ー１と、この表ー１に基づいた第２図に示すような
グラフを得ることが出来た。Next, as a result of experiments on the concentration of the ester-based urethane cement 3, the burst pressure, and the impulse running performance, the following Table 1 and a graph shown in FIG. 2 based on Table 1 can be obtained. Was.
高圧樹脂ホース（直径9mm）について、チューブ上エ
ステル系ウレタンセメントの濃度−破壊圧力，インパル
ス性能走行性能の関係について実験した。For high-pressure resin hoses (diameter 9 mm), the relationship between the concentration of ester-based urethane cement on the tube, the burst pressure, and the impulse performance was examined.
上記の表ー１及び第２図から明らかなように、破壊圧
力（kgf/cm2）が、840（kgf/cm2）以上，インパルス性
能が60（万回）の場合について性能としては、エステル
系ウレタンセメントの濃度を、５％〜40％、好ましくは
８〜30％に保つことが好ましいことが判った。 As is clear from Table 1 and FIG. 2, when the burst pressure (kgf / cm 2 ) is 840 (kgf / cm 2 ) or more and the impulse performance is 60 (10,000 times), the performance is ester. It has been found that it is preferable to maintain the concentration of the urethane cement at 5% to 40%, preferably 8% to 30%.
即ち、エステル系ウレタンセメントの濃度が５％以下
の場合には、インパルス性能が低下し、また40％以上の
場合には、破壊圧力が低下して樹脂ホースの性能として
は好ましくない。That is, when the concentration of the ester-based urethane cement is 5% or less, the impulse performance decreases, and when the concentration is 40% or more, the breaking pressure decreases, which is not preferable as the performance of the resin hose.
この発明は、ポリエステルチューブの周面に、溶媒に
対してセメント濃度が５％〜40％の熱軟化性エステル系
ウレタンセメントを塗布し、この周面に、ポリエステル
無撚補強糸を施した後、ウレタンカバーを被覆するの
で、エステル系ウレタンセメントの濃度を従来に比べて
薄くし、これをポリエステルチューブの周面に均一に塗
布することが出来、これにより、チューブと補強糸との
間のセメント濃度を適量に保ち、フィラメント切れを有
効に防止して樹脂ホース全体として、ホースの性能であ
る所定の破壊圧力及びインパルス性能を向上させること
が出来る効果がある。The present invention applies a heat-softening ester-based urethane cement having a cement concentration of 5% to 40% with respect to a solvent on a peripheral surface of a polyester tube, and after applying a polyester non-twisted reinforcing yarn to the peripheral surface, Since the urethane cover is covered, the concentration of the ester-based urethane cement can be made thinner than before, and this can be uniformly applied to the peripheral surface of the polyester tube. Is maintained in an appropriate amount, the filament breakage is effectively prevented, and there is an effect that the predetermined burst pressure and impulse performance, which are the performances of the hose, can be improved as a whole of the resin hose.
第１図は、この発明を実施した樹脂ホース本体の一部切
欠した斜視図、第２図はエステル系ウレタンセメントの
濃度と、破壊圧力，インパルス走行性能との関係を示す
グラフ説明図である。 １……樹脂ホース本体、２……ポリエステルチューブ、
３……エステル系ウレタンセメント、４……ポリエステ
ル無撚補強糸、５……ウレタンカバー。FIG. 1 is a partially cutaway perspective view of a resin hose body embodying the present invention, and FIG. 2 is a graph explanatory view showing the relationship between the concentration of an ester-based urethane cement, burst pressure, and impulse running performance. 1 ... Resin hose body, 2 ... Polyester tube,
3 ... ester-based urethane cement, 4 ... polyester non-twisted reinforcing yarn, 5 ... urethane cover.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F16L 11/10 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) F16L 11/10
Claims (1)
してセメント濃度が５％〜40％の熱軟化性エステル系ウ
レタンセメントを塗布し、この周面に、ポリエステル無
撚補強糸を施した後、ウレタンカバーを被覆することを
特徴とする樹脂ホースの製造方法。(1) Applying a heat-softening ester-based urethane cement having a cement concentration of 5% to 40% with respect to a solvent on a peripheral surface of a polyester tube, and applying a polyester non-twist reinforcing yarn to the peripheral surface. A method for producing a resin hose, comprising coating a urethane cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02299801A JP3084481B2 (en) | 1990-11-07 | 1990-11-07 | Manufacturing method of resin hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02299801A JP3084481B2 (en) | 1990-11-07 | 1990-11-07 | Manufacturing method of resin hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04175591A JPH04175591A (en) | 1992-06-23 |
| JP3084481B2 true JP3084481B2 (en) | 2000-09-04 |
Family
ID=17877098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02299801A Expired - Lifetime JP3084481B2 (en) | 1990-11-07 | 1990-11-07 | Manufacturing method of resin hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3084481B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06745A (en) * | 1992-06-19 | 1994-01-11 | Asuka Trading Kk | Pressure mechanism |
-
1990
- 1990-11-07 JP JP02299801A patent/JP3084481B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06745A (en) * | 1992-06-19 | 1994-01-11 | Asuka Trading Kk | Pressure mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04175591A (en) | 1992-06-23 |
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