CN110701396A - Flexible hose and preparation method thereof - Google Patents
Flexible hose and preparation method thereof Download PDFInfo
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- CN110701396A CN110701396A CN201911012113.2A CN201911012113A CN110701396A CN 110701396 A CN110701396 A CN 110701396A CN 201911012113 A CN201911012113 A CN 201911012113A CN 110701396 A CN110701396 A CN 110701396A
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- Prior art keywords
- glass fiber
- hose
- silica gel
- silicone rubber
- cloth
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/02—Hoses, i.e. flexible pipes made of fibres or threads, e.g. of textile which may or may not be impregnated, or provided with an impermeable layer, e.g. fire-hoses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
Abstract
The invention relates to a flexible hose and a preparation method thereof. The hose takes the thermoplastic resin filaments as a supporting framework to play a role in supporting and bearing, the glass fiber cloth with silica gel calendered on one surface is used for the hose body, the silica gel calendered on the inner surface has a noise reduction function, the hose head is made of glass fiber pre-impregnated silica gel cloth to reduce the weight of the ventilation hose in an air distribution system of an airplane, and on the premise of meeting the ventilation function requirement, the weight of a pipeline is reduced and the pipeline keeps sufficient flexibility, so that the overall weight of the airplane is reduced; each part of the hose is made of specific raw materials, so that the density of the hose material is reduced by 40% compared with that of the traditional flexible hose material, the tensile strength, the elastic modulus and the impact resistance are more excellent, the thermoplastic resin wires are adopted in the hose material as a supporting framework, the density of the hose material is lower than that of steel/copper metal wires in the traditional flexible hose, and the weight of the hose material is obviously reduced.
Description
Technical Field
The invention belongs to the technical field of hoses, and particularly relates to a flexible hose and a preparation method thereof.
Background
The flexible hose is a flexible hose made of thermoplastic resin wire support silica gel cloth, has the functions of conveying liquid, flowing air and the like, is a silica gel pipeline supported by stainless steel wires and is heavy in weight when a flexible pipe used in an air distribution system in the field of domestic aviation at present is used, and the pipeline relates to a rubber vulcanization process in a production process, so that the flexible hose is high in energy consumption, heavy in pollution and harmful to human health.
The present invention has been made in view of the above circumstances.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a flexible hose and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a flexible hose, flexible hose include body and tube head, the body include support chassis and body, body and tube head form through the binder bonding solidification, support chassis and body form through the glass cement bonding solidification, support chassis make by thermoplastic resin silk, the body make by the glass fiber cloth of single face calendering silica gel, the tube head make by glass fiber preimpregnation silica gel cloth.
Further, the thermoplastic resin filaments are polyether ether ketone, nylon, polyimide or polyurethane.
Further, the density of the polyether-ether-ketone is 1.31g/cm3The melting point is more than 300 ℃, the use temperature is-55-260 ℃, and the tensile strength is 132-148 MPa.
The density of the nylon is 1.15g/cm3The melting point is more than 215 ℃, the use temperature is-55-250 ℃, and the tensile strength is more than 65 MPa.
The density of the polyimide was 1.4g/cm3The melting point is more than 400 ℃, the use temperature is-200-300 ℃, and the tensile strength is more than 100 MPa.
The density of the polyurethane was 1.1g/cm3The using temperature is-55-120 ℃, and the tensile strength is more than 50 MPa.
The thermoplastic resin yarn has the physical and chemical properties of high temperature resistance, chemical corrosion resistance and the like, and in the field of aviation, the polyether-ether-ketone, the nylon, the polyimide or the polyurethane meets the requirements of space shuttles on high-performance materials due to high strength, small density and strong damage resistance, and is widely applied to producing parts of airplanes.
Furthermore, the glass fiber cloth with the single-sided rolled silica gel is formed by adhering a layer of silica gel to one side of the glass fiber cloth by adopting a rolling process.
Further, the thickness of the silicon rubber is 0.03-0.07mm, the hardness of the silicon rubber is 60-70 Shore, and the thickness of the glass fiber cloth with the single-side rolled silica gel is 0.10-0.16 mm.
Further, the thickness of the silicon rubber is 0.05mm, the hardness of the silicon rubber is 65 Shore, and the thickness of the glass fiber cloth with the single-side rolled silica gel is 0.13 mm.
Furthermore, the glass fiber pre-impregnated silica gel cloth is formed by respectively attaching a layer of silicon rubber on two sides of the glass fiber cloth through a calendering process.
Further, the thickness of the silicon rubber is 0.03-0.07mm, the hardness of the silicon rubber is 60-70 Shore, and the thickness of the glass fiber pre-impregnated silica gel cloth is 0.15-0.21 mm.
Further, the thickness of the silicon rubber is 0.05mm, the hardness of the silicon rubber is 65 Shore, and the thickness of the glass fiber pre-impregnated silica gel cloth is 0.18 mm.
The glass fiber degree in the invention is selected from alkali-free glass fiber cloth with a base material of 1080 standard, and the thickness is 0.08 mm. The calendering processes described in the present invention are all made by the prior art, are outside the scope of the present invention and are not described in detail.
Further, the adhesive is silicone rubber.
The silicone rubber reacts with water vapor in the air and is dried at room temperature to form durable and elastic silicone rubber for bonding articles, has good adaptability to climate, vibration, moisture, ozone and over-high or over-low temperature, and cannot be influenced in the flying process of an airplane.
The preparation method of the flexible hose comprises the following steps:
(1) preparing a pipe body: firstly, sticking glass fiber cloth with silica gel rolled on one side on the surface of a core mold to obtain a tube body, winding thermoplastic resin filaments on the outer surface of the tube body, curing for 22-26 hours, demolding, and processing the shape to obtain the tube body;
(2) preparing a tube head: paving glass fiber pre-impregnated silica gel cloth on a mold, manufacturing a vacuum bag, curing, demolding and processing the shape to obtain the pipe head;
(3) and (3) bonding the pipe body and the pipe head: and (3) coating an adhesive on the inner surface of the tube head and the end part of the outer surface of the tube body, adhering the tube body and the tube head, putting the tube body and the tube head into a mold, curing for 22-26 hours at room temperature, demolding, and processing the shape to obtain the hose.
Further, the vacuum degree of the vacuum bag manufactured in the step (2) is not lower than 0.08MPa, and the vacuum permeability is not more than 0.017MPa/5 min.
Further, in the step (2), the temperature is raised to the curing temperature at the temperature raising rate of 1-4 ℃/min, and then the temperature is lowered to below 60 ℃ at the temperature lowering rate of not more than 4 ℃/min, and the part is taken out in vacuum.
Wherein the curing temperature is determined according to the curing temperature of the adhesive.
Compared with the prior art, the invention has the beneficial effects that:
(1) the hose takes the thermoplastic resin filaments as a supporting framework to play a role in supporting and bearing, the glass fiber cloth with silica gel calendered on one surface is used for the hose body, the silica gel calendered on the inner surface has a noise reduction function, the hose head is made of glass fiber pre-impregnated silica gel cloth to reduce the weight of the ventilation hose in an air distribution system of an airplane, and on the premise of meeting the ventilation function requirement, the weight of a pipeline is reduced and the pipeline keeps sufficient flexibility, so that the overall weight of the airplane is reduced;
(2) each part of the hose is made of specific raw materials, so that the density of the hose material is reduced by 40% compared with that of the traditional flexible hose material, the tensile strength, the elastic modulus and the impact resistance are more excellent, the thermoplastic resin wires are adopted in the hose material as a supporting framework, the density of the hose material is lower than that of steel/copper metal wires in the traditional flexible hose, and the weight of the hose material is obviously reduced.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1
The flexible hose comprises a hose body and a hose head, wherein the hose body comprises a supporting framework and a hose body, the hose body and the hose head are bonded and cured through a binder, the supporting framework and the hose body are bonded and cured through glass cement, the supporting framework is made of thermoplastic resin filaments, the hose body is made of glass fiber cloth of single-side calendered silica gel, and the hose head is made of glass fiber pre-impregnated silica gel cloth. The glass fiber degree selection base material is alkali-free glass fiber cloth with the specification of 1080, and the thickness is 0.08 mm.
Wherein the thermoplastic resin filaments are polyether-ether-ketone, and the density of the polyether-ether-ketone is 1.31g/cm3The melting point is more than 300 ℃, the use temperature is-55-260 ℃, and the tensile strength is 132-148 MPa. The adhesive is silicone rubber.
The glass fiber cloth with the silica gel rolled on the single surface is formed by attaching a layer of silica gel on one side of the glass fiber cloth by adopting a rolling process. The thickness of the silicone rubber is 0.03mm, the hardness of the silicone rubber is 60 Shore, the thickness of the glass fiber cloth of the single-side rolled silica gel is 0.10mm, and the glass fiber cloth of the single-side rolled silica gel is light gray.
The glass fiber pre-impregnated silica gel cloth is formed by respectively attaching a layer of silicon rubber on two sides of the glass fiber cloth through a calendering process. The thickness of the silicon rubber is 0.03mm, the hardness of the silicon rubber is 60 Shore, and the thickness of the glass fiber pre-impregnated silica gel cloth is 0.15 mm.
The preparation method of the flexible hose of the embodiment comprises the following steps:
(1) preparing a pipe body: firstly, adhering glass fiber cloth with silica gel rolled on one side to the surface of a core mold to obtain a tube body, winding thermoplastic resin filaments on the outer surface of the tube body, curing for 22 hours, demolding, and processing the shape to obtain the tube body;
(2) preparing a tube head: paving glass fiber silica gel pre-impregnated cloth on a mold, manufacturing a vacuum bag, wherein the vacuum degree of the manufactured vacuum bag is not lower than 0.08MPa, the vacuum permeability is not more than 0.017MPa/5min, curing is realized by heating to a curing temperature at a heating rate of 1 ℃/min, then cooling to below 60 ℃ at a cooling rate of not more than 4 ℃/min, removing vacuum, taking out parts, demolding, and processing the shape to obtain the pipe head;
(3) and (3) bonding the pipe body and the pipe head: and (3) coating an adhesive on the inner surface of the tube head and the end part of the outer surface of the tube body, adhering the tube body and the tube head, putting the tube body and the tube head into a mold, curing for 22 hours at room temperature, demolding, and processing the shape to obtain the hose.
Example 2
The flexible hose comprises a hose body and a hose head, wherein the hose body comprises a supporting framework and a hose body, the hose body and the hose head are bonded and cured through a binder, the supporting framework and the hose body are bonded and cured through glass cement, the supporting framework is made of thermoplastic resin filaments, the hose body is made of glass fiber cloth of single-side calendered silica gel, and the hose head is made of glass fiber pre-impregnated silica gel cloth. The glass fiber degree selection base material is alkali-free glass fiber cloth with the specification of 1080, and the thickness is 0.08 mm.
Wherein the thermoplastic resin filament is nylon, and the density of the nylon is 1.15g/cm3The melting point is more than 215 ℃, the use temperature is-55-250 ℃, and the tensile strength is more than 65 MPa. The adhesive is silicone rubber.
The glass fiber cloth with the silica gel rolled on the single surface is formed by attaching a layer of silica gel on one side of the glass fiber cloth by adopting a rolling process. The thickness of the silicone rubber is 0.05mm, the hardness of the silicone rubber is 65 Shore, the thickness of the glass fiber cloth of the single-side rolled silica gel is 0.13mm, and the glass fiber cloth of the single-side rolled silica gel is light gray.
The glass fiber pre-impregnated silica gel cloth is formed by respectively attaching a layer of silicon rubber on two sides of the glass fiber cloth through a calendering process. The thickness of the silicon rubber is 0.05mm, the hardness of the silicon rubber is 65 Shore, and the thickness of the glass fiber pre-impregnated silica gel cloth is 0.18 mm.
The preparation method of the flexible hose of the embodiment comprises the following steps:
(1) preparing a pipe body:
(a) scrubbing the working surface of the core mould by using alcohol to ensure that the surface of the core mould is clean, free of grease and dust, checking whether the core mould meets the requirements, and whether the core mould is flawless or not and whether the marking is accurate or not, sticking a demoulding material on the working surface of the core mould to ensure that no wrinkle phenomenon exists between the glass fiber cloth of the single-side calendered silica gel and the core mould; cutting glass fiber cloth with single-sided rolled silica gel and sticking the glass fiber cloth on the surface of a core mold to obtain a tube body;
(b) installing a core die on a winding machine, fixing glass cement on a cement barrel of the winding machine, leading a thermoplastic resin wire to the beginning end of the core die after passing through a clamping plate of the winding machine and leading the thermoplastic resin wire to the glue outlet end of the cement barrel, then leading the thermoplastic resin wire to the beginning end of the core die, fixing the thermoplastic resin wire, setting the wire width, the winding angle and the winding speed to wind a pipe body, carefully dismounting a die from the winding machine after winding is finished, preventing the die from touching the surface of a product in the whole process, curing the die for 24 hours at normal temperature, demoulding in a mode of not damaging the surface of the product and the die, and processing the two ends of the product according to actual production requirements to;
(2) preparing a tube head:
scrubbing the working surface of the mold by using acetone or alcohol to ensure that the surface of the mold is clean and free of grease, checking whether the mold meets the requirements, has no defects and is accurate in scribing, taking out the glass fiber pre-impregnated silica gel cloth from a low-temperature warehouse, unfreezing and unsealing the glass fiber pre-impregnated silica gel cloth, cutting the glass fiber pre-impregnated silica gel cloth and a protective film together according to the requirements of patterns or by using a numerical control blanking machine, tearing the protective film when cutting, removing bubbles clamped in the glass fiber pre-impregnated silica gel cloth, and not allowing wrinkles, fiber buckling and inclusions to exist; placing a breathable material under a vacuum bag, placing a porous isolating membrane on the glass fiber pre-impregnated silica gel cloth, not allowing the breathable material to be in direct contact with the glass fiber pre-impregnated silica gel cloth, after bag making, carrying out vacuum leakage inspection, wherein the vacuum degree is not lower than 0.08MPa, the vacuum permeability is not more than 0.017MPa/5min, the vacuum degree is not less than 0.08MPa, heating to a curing temperature at a heating rate of 3 ℃/min, then cooling to below 60 ℃ at a cooling rate of 4 ℃/min, removing vacuum, taking out a part, demolding, and processing the shape to obtain the pipe head;
(3) and (3) bonding the pipe body and the pipe head: respectively coating adhesives on the inner surface of the processed pipe head and the end part of the outer surface of the pipe body, bonding and assembling the pipe head and the pipe body into a whole, inserting a mould into the two ends of the assembled pipe head, curing for 24 hours at room temperature, bonding and curing the pipe body and the pipe head, demoulding in a mode of not damaging a workpiece and the surface of the mould, and processing the appearance of the hose according to actual requirements to obtain the hose.
Example 3
The flexible hose comprises a hose body and a hose head, wherein the hose body comprises a supporting framework and a hose body, the hose body and the hose head are bonded and cured through a binder, the supporting framework and the hose body are bonded and cured through glass cement, the supporting framework is made of thermoplastic resin filaments, the hose body is made of glass fiber cloth of single-side calendered silica gel, and the hose head is made of glass fiber pre-impregnated silica gel cloth. The glass fiber degree selection base material is alkali-free glass fiber cloth with the specification of 1080, and the thickness is 0.08 mm.
Wherein the thermoplastic resin yarn is polyimide, and the density of the polyimide is 1.4g/cm3The melting point is more than 400 ℃, the use temperature is-200-300 ℃, and the tensile strength is more than 100 MPa. The adhesive is silicone rubber.
The glass fiber cloth with the silica gel rolled on the single surface is formed by attaching a layer of silica gel on one side of the glass fiber cloth by adopting a rolling process. The thickness of the silicone rubber is 0.07mm, the hardness of the silicone rubber is 70 Shore, the thickness of the glass fiber cloth of the single-side rolled silica gel is 0.16mm, and the glass fiber cloth of the single-side rolled silica gel is light gray.
The glass fiber pre-impregnated silica gel cloth is formed by respectively attaching a layer of silicon rubber on two sides of the glass fiber cloth through a calendering process. The thickness of the silicon rubber is 0.07mm, the hardness of the silicon rubber is 70 Shore, and the thickness of the glass fiber pre-impregnated silica gel cloth is 0.16 mm.
The preparation method of the flexible hose of the embodiment comprises the following steps:
(1) preparing a pipe body:
(a) scrubbing the working surface of the core mould by using alcohol to ensure that the surface of the core mould is clean, free of grease and dust, checking whether the core mould meets the requirements, and whether the core mould is flawless or not and whether the marking is accurate or not, sticking a demoulding material on the working surface of the core mould to ensure that no wrinkle phenomenon exists between the glass fiber cloth of the single-side calendered silica gel and the core mould; cutting glass fiber cloth with single-sided rolled silica gel and sticking the glass fiber cloth on the surface of a core mold to obtain a tube body;
(b) installing a core die on a winding machine, fixing glass cement on a cement barrel of the winding machine, leading a thermoplastic resin wire to the beginning end of the core die after passing through a clamping plate of the winding machine and leading the thermoplastic resin wire to the glue outlet end of the cement barrel, and carrying out fixing treatment, setting the wire width, the winding angle and the winding speed to wind a pipe body, carefully dismounting a die from the winding machine after winding is finished, avoiding touching the surface of a product in the whole process, curing at normal temperature for 26h, demoulding in a mode of not damaging the surface of the product and the die, and processing the two ends of the product according to actual production requirements to obtain the pipe body;
(2) preparing a tube head:
scrubbing the working surface of the mold by using acetone or alcohol to ensure that the surface of the mold is clean and free of grease, checking whether the mold meets the requirements, has no defects and is accurate in scribing, taking out the glass fiber pre-impregnated silica gel cloth from a low-temperature warehouse, unfreezing and unsealing the glass fiber pre-impregnated silica gel cloth, cutting the glass fiber pre-impregnated silica gel cloth and a protective film together according to the requirements of patterns or by using a numerical control blanking machine, tearing the protective film when cutting, removing bubbles clamped in the glass fiber pre-impregnated silica gel cloth, and not allowing wrinkles, fiber buckling and inclusions to exist; placing a breathable material under a vacuum bag, placing a porous isolating membrane on the glass fiber pre-impregnated silica gel cloth, not allowing the breathable material to be in direct contact with the glass fiber pre-impregnated silica gel cloth, after bag making, carrying out vacuum leakage inspection, wherein the vacuum degree is not lower than 0.08MPa, the vacuum permeability is not more than 0.017MPa/5min, the vacuum degree is not less than 0.08MPa, heating to a curing temperature at a heating rate of 3 ℃/min, then cooling to below 60 ℃ at a cooling rate of 3 ℃/min, removing vacuum, taking out a part, demolding, and processing the shape to obtain the pipe head;
(3) and (3) bonding the pipe body and the pipe head: respectively coating adhesives on the inner surface of the processed pipe head and the end part of the outer surface of the pipe body, bonding and assembling the pipe head and the pipe body into a whole, inserting a mould into the two ends of the assembled pipe head, curing for 26 hours at room temperature, bonding and curing the pipe body and the pipe head, demoulding in a mode of not damaging a workpiece and the surface of the mould, and processing the appearance of the hose according to actual requirements to obtain the hose.
Example 4
The flexible hose comprises a hose body and a hose head, wherein the hose body comprises a supporting framework and a hose body, the hose body and the hose head are bonded and cured through a binder, the supporting framework and the hose body are bonded and cured through glass cement, the supporting framework is made of thermoplastic resin filaments, the hose body is made of glass fiber cloth of single-side calendered silica gel, and the hose head is made of glass fiber pre-impregnated silica gel cloth. The glass fiber degree selection base material is alkali-free glass fiber cloth with the specification of 1080, and the thickness is 0.08 mm.
Wherein the thermoplastic resin filaments are polyurethane, and the density of the polyurethane is 1.1g/cm3The using temperature is-55-120 ℃, and the tensile strength is more than 50 MPa. The adhesive is silicone rubber.
The glass fiber cloth with the silica gel rolled on the single surface is formed by attaching a layer of silica gel on one side of the glass fiber cloth by adopting a rolling process. The thickness of the silicone rubber is 0.04mm, the hardness of the silicone rubber is 63 Shore, the thickness of the glass fiber cloth of the single-side rolled silica gel is 0.14mm, and the glass fiber cloth of the single-side rolled silica gel is light gray.
The glass fiber pre-impregnated silica gel cloth is formed by respectively attaching a layer of silicon rubber on two sides of the glass fiber cloth through a calendering process. The thickness of the silicon rubber is 0.04mm, the hardness of the silicon rubber is 63 Shore, and the thickness of the glass fiber pre-impregnated silica gel cloth is 0.14 mm.
The preparation method of the flexible hose of the embodiment comprises the following steps:
(1) preparing a pipe body:
(a) scrubbing the working surface of the core mould by using alcohol to ensure that the surface of the core mould is clean, free of grease and dust, checking whether the core mould meets the requirements, and whether the core mould is flawless or not and whether the marking is accurate or not, sticking a demoulding material on the working surface of the core mould to ensure that no wrinkle phenomenon exists between the glass fiber cloth of the single-side calendered silica gel and the core mould; cutting glass fiber cloth with single-sided rolled silica gel and sticking the glass fiber cloth on the surface of a core mold to obtain a tube body;
(b) installing a core die on a winding machine, fixing glass cement on a cement barrel of the winding machine, leading a thermoplastic resin wire to the beginning end of the core die after passing through a clamping plate of the winding machine and leading the thermoplastic resin wire to the glue outlet end of the cement barrel, and carrying out fixing treatment, setting the wire width, the winding angle and the winding speed to wind a pipe body, carefully dismounting a die from the winding machine after winding is finished, avoiding touching the surface of a product in the whole process, curing at normal temperature for 26h, demoulding in a mode of not damaging the surface of the product and the die, and processing the two ends of the product according to actual production requirements to obtain the pipe body;
(2) preparing a tube head:
scrubbing the working surface of the mold by using acetone or alcohol to ensure that the surface of the mold is clean and free of grease, checking whether the mold meets the requirements, has no defects and is accurate in scribing, taking out the glass fiber pre-impregnated silica gel cloth from a low-temperature warehouse, unfreezing and unsealing the glass fiber pre-impregnated silica gel cloth, cutting the glass fiber pre-impregnated silica gel cloth and a protective film together according to the requirements of patterns or by using a numerical control blanking machine, tearing the protective film when cutting, removing bubbles clamped in the glass fiber pre-impregnated silica gel cloth, and not allowing wrinkles, fiber buckling and inclusions to exist; placing a breathable material under a vacuum bag, placing a porous isolating membrane on the glass fiber pre-impregnated silica gel cloth, not allowing the breathable material to be in direct contact with the glass fiber pre-impregnated silica gel cloth, after bag making, carrying out vacuum leakage inspection, wherein the vacuum degree is not lower than 0.08MPa, the vacuum permeability is not more than 0.017MPa/5min, the vacuum degree is not less than 0.08MPa, heating to a curing temperature at a heating rate of 3 ℃/min, then cooling to below 60 ℃ at a cooling rate of 3 ℃/min, removing vacuum, taking out a part, demolding, and processing the shape to obtain the pipe head;
(3) and (3) bonding the pipe body and the pipe head: respectively coating adhesives on the inner surface of the processed pipe head and the end part of the outer surface of the pipe body, bonding and assembling the pipe head and the pipe body into a whole, inserting a mould into the two ends of the assembled pipe head, curing for 26 hours at room temperature, bonding and curing the pipe body and the pipe head, demoulding in a mode of not damaging a workpiece and the surface of the mould, and processing the appearance of the hose according to actual requirements to obtain the hose.
Comparative example 1
The raw materials and preparation method of the hose of the comparative example are the same as those of example 1, except that the support framework of the hose of the comparative example is made of stainless steel wires, the pipe body and the pipe head are both made of glass fiber pre-impregnated silica gel cloth, and the preparation method is adjusted in adaptability.
Test example 1
The hose prepared in examples 1 to 3 and comparative example 1 were subjected to the measurement of the performance parameters, respectively, and the results are shown in Table 1.
TABLE 1
| Sample (I) | Gram weight (g/1m) diameter of 30mm | Working pressure (MPa) |
| Example 1 | 98.61 | 0.062 |
| Example 2 | 93.42 | 0.053 |
| Example 3 | 105.19 | 0.084 |
| Example 4 | 94.51 | 0.043 |
| Comparative example 1 | 236.12 | 0.121 |
As can be seen from the table above, the hose prepared by the method of the present invention has the advantages of low gram weight, low working pressure and excellent performance.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a flexible hose, its characterized in that, flexible pipe include body and tube head, the body include supporting framework and body, body and tube head form through the binder bonding solidification, supporting framework and body form through the glass cement bonding solidification, supporting framework make by thermoplastic resin silk, the body make by the glass fiber cloth of single face calendering silica gel, the tube head make by glass fiber preimpregnation silica gel cloth.
2. The flexible hose of claim 1, wherein said thermoplastic resin filaments are polyetheretherketone, nylon, polyimide or polyurethane.
3. The flexible hose of claim 1, wherein the glass fiber cloth with the single-sided rolled silicone rubber is formed by attaching a layer of silicone rubber to one side of the glass fiber cloth by a rolling process.
4. The flexible hose according to claim 3, wherein the silicone rubber has a thickness of 0.03 to 0.07mm, the silicone rubber has a hardness of 60 to 70 Shore, the single-side-rolled silicone rubber glass fiber cloth has a thickness of 0.10 to 0.16mm, preferably, the silicone rubber has a thickness of 0.05mm, the silicone rubber has a hardness of 65 Shore, and the single-side-rolled silicone rubber glass fiber cloth has a thickness of 0.13 mm.
5. The flexible hose of claim 1, wherein the glass fiber pre-impregnated silicone fabric is formed by attaching a layer of silicone rubber to each of two sides of the glass fiber fabric by a calendering process.
6. The flexible hose according to claim 5, wherein the silicone rubber has a thickness of 0.03 to 0.07mm, the silicone rubber has a hardness of 60 to 70 Shore, the glass fiber pre-impregnated silicone cloth has a thickness of 0.15 to 0.21mm, preferably, the silicone rubber has a thickness of 0.05mm, the silicone rubber has a hardness of 65 Shore, and the glass fiber pre-impregnated silicone cloth has a thickness of 0.18 mm.
7. The flexible hose of claim 1, wherein said adhesive is silicone rubber.
8. A method of manufacturing a flexible hose according to any one of claims 1 to 7, comprising the steps of:
(1) preparing a pipe body: firstly, sticking glass fiber cloth with silica gel rolled on one side on the surface of a core mold to obtain a tube body, winding thermoplastic resin filaments on the outer surface of the tube body, curing for 22-26 hours, demolding, and processing the shape to obtain the tube body;
(2) preparing a tube head: paving glass fiber pre-impregnated silica gel cloth on a mold, manufacturing a vacuum bag, curing, demolding and processing the shape to obtain the pipe head;
(3) and (3) bonding the pipe body and the pipe head: respectively coating the end parts of the inner surface and the outer surface of the tube head with adhesives, bonding the tube body and the tube head, putting the tube body and the tube head into a mold, curing at room temperature for 22-26 hours, demolding, and processing the shape to obtain the hose.
9. The method of claim 8, wherein the vacuum bag formed in step (2) has a vacuum degree of not less than 0.08MPa and a vacuum permeability of not more than 0.017MPa/5 min.
10. The method for preparing the flexible hose according to claim 8, wherein the curing in the step (2) is carried out by heating to a curing temperature at a heating rate of 1-4 ℃/min, and then cooling to a temperature below 60 ℃ at a cooling rate of not more than 4 ℃/min to remove the part in vacuum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911012113.2A CN110701396B (en) | 2019-10-23 | 2019-10-23 | Flexible hose and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911012113.2A CN110701396B (en) | 2019-10-23 | 2019-10-23 | Flexible hose and preparation method thereof |
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| Publication Number | Publication Date |
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| CN110701396A true CN110701396A (en) | 2020-01-17 |
| CN110701396B CN110701396B (en) | 2021-09-28 |
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| CN201911012113.2A Active CN110701396B (en) | 2019-10-23 | 2019-10-23 | Flexible hose and preparation method thereof |
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| CN204083554U (en) * | 2014-08-20 | 2015-01-07 | 胡国安 | A kind of hollow tube wall helical plastic flexible pipe |
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| US20180080585A1 (en) * | 2016-09-19 | 2018-03-22 | Contitech Mgw Gmbh | Fluoroelastomer/epdm hose for cold-side charge air applications |
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| JP2019023487A (en) * | 2017-07-24 | 2019-02-14 | 株式会社ブリヂストン | Refrigerant transport hose |
| US20190063642A1 (en) * | 2017-08-23 | 2019-02-28 | Mohammad Reza Ehsani | Onsite real-time manufacturing of long continuous jointless pipes |
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2019
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| CN1075358A (en) * | 1991-11-05 | 1993-08-18 | 马克尔公司 | The pipeline of fuel system |
| CN101158426A (en) * | 2007-10-12 | 2008-04-09 | 上海登益企业有限公司 | High-pressure pipe used for Hydraulic transferring |
| CN201246536Y (en) * | 2008-06-25 | 2009-05-27 | 周菊明 | Spring reinforced silicon glass hose |
| CN103672198A (en) * | 2013-11-01 | 2014-03-26 | 安徽邦尼新材料有限公司 | Novel plastic reinforcing rib for reinforcing winding pipe and manufacturing method of novel plastic reinforcing rib |
| CN104089111A (en) * | 2014-07-01 | 2014-10-08 | 山东冠通蓝海石油管材有限公司 | Enhanced type mixed material non-binding flexible tube |
| CN204083554U (en) * | 2014-08-20 | 2015-01-07 | 胡国安 | A kind of hollow tube wall helical plastic flexible pipe |
| CN204226886U (en) * | 2014-09-29 | 2015-03-25 | 江西金阳管业有限公司 | A kind of steel band reinforced spiral ripple pipe |
| CN105605336A (en) * | 2014-11-12 | 2016-05-25 | 盐城市雷击环保科技有限公司 | An epoxy glass fiber winding pipe |
| CN105736855A (en) * | 2014-12-09 | 2016-07-06 | 沈阳新飞宇橡胶制品有限公司 | CNG conveying hose for gas filling/gas discharge pillar of gas station |
| CN204922277U (en) * | 2015-08-07 | 2015-12-30 | 威海丰泰新材料科技股份有限公司 | High anti scuffing hose pump hose |
| CN205298872U (en) * | 2015-12-16 | 2016-06-08 | 天津鹏翎胶管股份有限公司 | Turbocharged rubber tube |
| CN205664015U (en) * | 2016-06-02 | 2016-10-26 | 广州索特塑管科技有限公司 | Hose is strengthened to plastics muscle |
| CN206093256U (en) * | 2016-08-16 | 2017-04-12 | 浙江久运车辆部件有限公司 | Turbocharged business turn over gas silicone tube |
| US20180080585A1 (en) * | 2016-09-19 | 2018-03-22 | Contitech Mgw Gmbh | Fluoroelastomer/epdm hose for cold-side charge air applications |
| JP2019023487A (en) * | 2017-07-24 | 2019-02-14 | 株式会社ブリヂストン | Refrigerant transport hose |
| US20190063642A1 (en) * | 2017-08-23 | 2019-02-28 | Mohammad Reza Ehsani | Onsite real-time manufacturing of long continuous jointless pipes |
| CN207195869U (en) * | 2017-09-01 | 2018-04-06 | 浙江恒安泰石油工程有限责任公司 | A kind of old pipeline reparation flexible composite pipe of intelligent monitor-type |
| CN207661247U (en) * | 2017-12-29 | 2018-07-27 | 潍坊现代塑胶有限公司 | Fiber reinforcement elastic telescoping hose |
| CN109027446A (en) * | 2018-09-12 | 2018-12-18 | 上海英泰塑胶股份有限公司 | Thermoplastic continuous fibers presoak kernmantle hot melt winding bellows and its manufacturing equipment |
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|---|---|
| CN110701396B (en) | 2021-09-28 |
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