CN1244458A - Telescopic rubber pipe and its production process - Google Patents
Telescopic rubber pipe and its production process Download PDFInfo
- Publication number
- CN1244458A CN1244458A CN 98110392 CN98110392A CN1244458A CN 1244458 A CN1244458 A CN 1244458A CN 98110392 CN98110392 CN 98110392 CN 98110392 A CN98110392 A CN 98110392A CN 1244458 A CN1244458 A CN 1244458A
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- China
- Prior art keywords
- rubber pipe
- telescopic rubber
- core
- carcass
- present
- 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 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000004744 fabric Substances 0.000 claims abstract description 18
- 239000003292 glue Substances 0.000 claims description 19
- 230000002787 reinforcement Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000002390 adhesive tape Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000005987 sulfurization reaction Methods 0.000 claims description 3
- 230000008602 contraction Effects 0.000 abstract description 6
- 230000003014 reinforcing effect Effects 0.000 abstract description 5
- 239000003513 alkali Substances 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 13
- 229920001206 natural gum Polymers 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present invention relates to water supply and drainage pipes, especially relates to spiral-corrugated pipes. The said corrugated pipe has inner and outer corrugation of the same shape, reinforcing ribs in the wave crest and wave trough, inner and outer cloth layers between the inner and the outer rubber layers. The present invention has simple structure and large expansion/contraction, so that it may be used in the field of great water-level change, including both static and dynamic environment and is especially suitable for use in water conveying engineering work with great flow rate. When proper composition of inner rubber layer is used, the pipe may also be used in conveying acid, alkali, oil and other medium. The present invention features that by using special mold, rubber pipe with inner diameter greater than that of the pipe mouth as well as corrugated rubber pipes with other shapes and different sizes may be produced.
Description
The present invention relates to the water supply and sewage pipe fitting, more particularly is telescopic rubber pipe and production technology.
At present, moving of small-sized water supply and sewage pipe fitting, flexible being easy to solves, but often running into water pipe, oil field or large-scale water drainage-supply system need big stretching, displacement, the occasion of angle amount, run into such situation, the most normal employing both at home and abroad be expansion pipe, the centre that is the two ends ring flange is the ball-type sebific duct, the disadvantage of this kind form is a stroke, angle, displacement is little, displacement only is 20-30mm, angle is less than 16 °, and stroke is less than 20mm, in big angle of needs and the bigger occasion of displacement, instructions for use can not be satisfied, or complex engineering design and high investment will be carried out for reaching requirement.
Purpose of the present invention can be eliminated above-mentioned shortcoming in order to provide a kind of exactly, has helical fissure and inside and outside waveform is identical, has the telescopic rubber pipe and the production technology of enough big stroke, angle and displacement.
In order to achieve the above object, be helical fissure between two joints of the present invention (7), and inside and outside bellows-shaped is identical, crest (6) and trough (5) are provided with reinforcement (3), be provided with interior carcass (2-2) and outer carcass (2-1) between inner glue layer (4) and outer glue-line (1), in the middle glue (12) in reinforcement is located between carcass and the outer carcass.
Production technology of the present invention is formed loose tool by hard core (11), soft core (9) and external mold (8), adds to coat interleaving agent man-hour on hard core, and soft core is fixed on the hard core with adhesive tape; On the soft core that fixes, coat interleaving agent again, uniformly looping inner glue layer (4), interior carcass (2-2), steel wire (3) and middle glue (12), outer carcass (2-1), outer glue-line (1), and wrap with water cloth; Buckle external mold, water cloth is tied up firmly with the rope solid matter after twining; Sulfuration; The demoulding.
The wave height of helical corrugation waveform of the present invention is 30-120mm, and the pitch of waves is 30-200mm, and helical corrugation quantity is 1,2,3,4 ... or it is a plurality of.
Soft core of the present invention (9) is the long adhesive tape of vulcanized moulding, the interior bellows-shaped that is shaped as body (10) helical corrugation of cross section, and external mold (8) is the long adhesive tape of vulcanized moulding, hard core (11) is a steel pipe.
Of the present invention simple in structure, expansion and contraction, angle amount and displacement are big, need the occasion of flexible, angle, displacement to use in water level decline, rising etc., has tangible advantage, all can use in static state or dynamic environment no matter be, be particularly suitable in big flow, the bigbore water delivery engineering, change the prescription of inner glue layer, also can be used for carrying the medium that contains acid, alkali, oil.Maximum characteristics of the present invention are to utilize special loose tool tool, the sebific duct that the production and processing internal diameter of tube body is bigger than spout diameter, can produce the sebific duct of helical corrugation or other shape ripple, and processing technology is simple, cost is low, the efficient height can be processed the sebific duct of different-diameter, different length, different wave height and the pitch of waves according to requirement of engineering.
Embodiment to the tool advantage of the present invention is described further below in conjunction with accompanying drawing:
Description of drawings: Fig. 1 is the sebific duct cutaway view.
Fig. 2 is sebific duct technological forming figure.
The sequence number of each parts is respectively among the figure: glue in carcass, 3 reinforcements, 4 inner glue layers, 5 troughs, 6 crests, 7 joints, 8 external molds, 9 soft cores, 10 bodys, the 11 hard cores, 12 in 1 outer glue-line, the outer carcass of 2-1, the 2-2.
Fig. 1 is shown the sebific duct structural representation, be to be provided with helical fissure between two joints, and inside and outside bellows-shaped is identical, crest and trough are provided with reinforcement, be provided with interior carcass, outer carcass between inner glue layer and outer glue-line, in the middle glue in reinforcement is located between carcass and the outer carcass.
Expansion and contraction of the present invention can reach 50%, can produce such effect is because body has helical fissure, ripple inside is not the entity of being filled by rubber, but have the interior ripple identical with sebific duct helical fissure shape, thereby have high expansion and contraction, and substantive distinguishing features of the present invention is exactly to have solved processing to have the technology of interior corrugated hose.
Fig. 2 of the present invention is shown technological forming figure, be with special loose tool processing, loose tool comprises hard core (11), soft core (9), external mold (8), soft core and external mold are according to bellows-shaped customization and the long adhesive tape of vulcanized moulding, add and on hard core, coat interleaving agent man-hour, soft core is fixed on the hard core with adhesive tape; On the soft core that fixes, coat interleaving agent again, uniformly looping inner glue layer (4), interior carcass (2-2), steel wire (3) and middle glue (), outer carcass (2-1), outer glue-line (1), and wrap with water cloth; Buckle external mold, after water cloth twines, tie up firmly the demoulding after vulcanize, cure time arrives again with the rope solid matter.Untie earlier during the demoulding and be banded in outermost rope and water cloth, unload external mold and water cloth again, extract hard core out, because soft core is to be entangled on the hard core with adhesive tape, conjugation is low, thereby can extract hard core at an easy rate out, and soft core is stayed in the interior ripple of body (10), after extracting hard core out, take off soft core again and get final product.
The said hard core of the present invention is the steel pipe.
The used interleaving agent of the present invention is meant silicone oil, emulsifying agent of common usefulness etc.
The said reinforcement of the present invention (3) is meant bullet wire, is the adhesion of enhancing with rubber, the best copper facing of steel wire.
Carcass, outer carcass are provided with for strengthening body intensity in of the present invention, and adhesive plaster can adopt duck, chemical fibre class canvas, polyester cord or aramid fiber cloth, preferably adopts polyester cord and chemical fibre class canvas.
The number of the helical corrugation of each body of the present invention (10) can be 1,2,3,4 ... or a plurality of, manufacture according to specific requirement.
The present invention is because its design feature, stroke, angle amount, displacement are all than big many of expansion pipe, with the wave height is 70mm, the pitch of waves is that the helical corrugation sebific duct of 110mm is an example, its expansion and contraction can reach 50%, each helical corrugation of angle amount reaches 4 °, and the body angle amount with 10 helical corrugations can reach 40 °, and displacement is that the displacement dislocation with 23 helical corrugations is 700mm.
Advantage of the present invention is significantly, under the situation that guarantees operating pressure, can reduce the thickness of body as far as possible, can increase stroke, angle amount and displacement, and thin rubber tube can adopt the production of this kind method, small-bore pipe or other specific use sebific ducts of irrigating the fields of example.The above large-caliber spiral bellows of the most suitable 500mm of the present invention is used, according to designing requirement, the present invention can process the above super-large diameter telescopic rubber pipe of inside nominal diameter 1600mm, the present invention becomes oil field or the design and construction of large-scale water drainage-supply system under specific use and is more prone to, and cost reduces more than 60%.
Embodiment one: the processing inside nominal diameter is the telescopic rubber pipe of 900mm, wave height 70mm, pitch of waves 110mm, 11 ripples, corrugation length 1.2m, sebific duct total length 1.9m, hard core by steel pipe or steel plate roll bending through welding be processed into, soft core and external mold vulcanize or the compression molding moulding through extruding respectively by inside and outside waveform shape, and guarantee to have continuous sufficiently long length.Concrete procedure of processing is: coat interleaving agent on hard core, soft core is fixed on the hard core with adhesive tape by spiral-shaped; On soft core, coat interleaving agent, and along the uniform looping inner glue layer of soft core (4), interior carcass (2-2), steel wire (3) and middle glue (12), outer carcass (2-1), outer glue-line (1), and wrap with water cloth; Buckle external mold, water cloth is tied up firmly with the rope solid matter after twining; Sulfuration; The demoulding.Interior carcass is six strata ester cord fabrics, outer carcass is two layers of nylon canvas, reinforcement adopts copper facing medium carbon steel, the reinforcement of crest is a diameter 5mm reinforcing bar, the reinforcement of trough is a diameter 6mm reinforcing bar, middle glue (12) is to add the conventional adhesive that can combine with metal in the natural gum, and interleaving agent is a silicone oil, and water cloth, water cloth are conventional water cloth and water cloth.After making, the decrement of telescopic rubber pipe is 560mm, and elongation is 60mm, and stroke is 620mm, and expansion and contraction is 52%, 45 ° of angles, displacement 350mm.Inner glue layer of the present invention can during transporting water, have wear-resisting effective glue-line according to the different mining of institute's pumped (conveying) medium with different prescriptions, adopts the inner glue layer of natural gum and cis-butadiene cement and usefulness; When conveying contained acid-alkali medium, inner glue layer generally adopted natural gum; When carrying the oil-containing medium, generally be butadiene acrylonitrile rubber and neoprene and usefulness; No matter which kind of sebific duct, the glue-line that its outer glue-line generally adopts aging-resistant natural gum and neoprene to share.
Embodiment two: the processing nominal diameter is the telescopic rubber pipe of 700mm, wave height 100mm, pitch of waves 150mm, 15 ripples, corrugation length 1.65m, sebific duct total length 2.2m, interior carcass are four strata ester cord fabrics, and outer carcass is two layers of nylon canvas, reinforcement adopts copper facing medium carbon steel, the reinforcement of crest is a diameter 4mm reinforcing bar, and the reinforcement of trough is a diameter 5mm reinforcing bar, and other is identical.The stroke of telescopic rubber pipe is 790mm, and angle is 60 °, and displacement is 650mm.
Claims (7)
1, a kind of telescopic rubber pipe it is characterized in that being helical fissure between two joints (7), and inside and outside bellows-shaped is identical, and crest (6) and trough (5) are provided with reinforcement (3), and reinforcement is located between interior carcass (2-2) and the outer carcass (2-1).
2, the production technology of telescopic rubber pipe is characterized in that, forms loose tool by hard core (11), soft core (9) and external mold (8), and concrete procedure of processing is:
(1), on hard core, coat interleaving agent, soft core is fixed on the hard core with adhesive tape by spiral-shaped;
(2), on soft core, coat interleaving agent, and along the uniform looping inner glue layer of soft core (4), interior carcass (2-2), steel wire (3) and middle glue (12), outer carcass (2-1), outer glue-line (1), and with water cloth wrap;
(3), buckle external mold, water cloth is tied up firmly with the rope solid matter after twining;
(4), sulfuration;
(5), the demoulding.
3, telescopic rubber pipe according to claim 1, the wave height that it is characterized in that said helical corrugation waveform is 30-120mm, the pitch of waves is 30-200mm.
4, telescopic rubber pipe according to claim 1, the quantity that it is characterized in that said body (10) helical corrugation is 1,2,3,4 ... or it is a plurality of.
5, telescopic rubber pipe production technology according to claim 2 is characterized in that said soft core (9) is the long adhesive tape of vulcanized moulding, the interior bellows-shaped that is shaped as body (10) helical corrugation of its cross section.
6, telescopic rubber pipe production technology according to claim 2 is characterized in that said external mold (8) is the long adhesive tape of vulcanized moulding.
7, telescopic rubber pipe production technology according to claim 2 is characterized in that said hard core (11) is the steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98110392A CN1067013C (en) | 1998-08-09 | 1998-08-09 | Telescopic rubber pipe and its production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98110392A CN1067013C (en) | 1998-08-09 | 1998-08-09 | Telescopic rubber pipe and its production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1244458A true CN1244458A (en) | 2000-02-16 |
| CN1067013C CN1067013C (en) | 2001-06-13 |
Family
ID=5220442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98110392A Expired - Fee Related CN1067013C (en) | 1998-08-09 | 1998-08-09 | Telescopic rubber pipe and its production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1067013C (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2716523B1 (en) * | 1994-02-22 | 1996-04-12 | Lorraine Carbone | Bellows for connecting pipes or devices for vacuum operation. |
| JP3570814B2 (en) * | 1996-03-15 | 2004-09-29 | 三恵技研工業株式会社 | Flexible joint |
-
1998
- 1998-08-09 CN CN98110392A patent/CN1067013C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1067013C (en) | 2001-06-13 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |