CN112268145A - Shock insulation rubber hose and preparation method thereof - Google Patents
Shock insulation rubber hose and preparation method thereof Download PDFInfo
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- CN112268145A CN112268145A CN202011184378.3A CN202011184378A CN112268145A CN 112268145 A CN112268145 A CN 112268145A CN 202011184378 A CN202011184378 A CN 202011184378A CN 112268145 A CN112268145 A CN 112268145A
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- 230000035939 shock Effects 0.000 title claims abstract description 28
- 238000009413 insulation Methods 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 238000004804 winding Methods 0.000 claims abstract description 55
- 238000004073 vulcanization Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000011049 filling Methods 0.000 claims abstract description 9
- 239000004014 plasticizer Substances 0.000 claims abstract description 8
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 8
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 6
- 229920006235 chlorinated polyethylene elastomer Polymers 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
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- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 66
- 238000002156 mixing Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 15
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- 238000013329 compounding Methods 0.000 claims description 10
- 238000004513 sizing Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 7
- 239000012190 activator Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 239000005662 Paraffin oil Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
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- 239000011787 zinc oxide Substances 0.000 claims description 2
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Images
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
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/18—Pleated or corrugated hoses
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- 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
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
- F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
- F16L11/083—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire three or more layers
-
- 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
- F16L11/24—Hoses, i.e. flexible pipes wound from strips or bands
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to the technical field of rubber hoses, in particular to a shock insulation rubber hose and a preparation method thereof. The rubber hose is composed of an inner rubber layer, a middle rubber layer and an outer rubber layer, and the rubber hose is composed of the following raw materials: ethylene propylene diene monomer, chlorinated polyethylene rubber, filling reinforcing agent, vulcanizing agent, activating agent, accelerant and plasticizer. The preparation method of the rubber hose comprises the following steps: selecting a tube core, polishing to remove rust, and coating a release agent; winding an inner rubber layer film on the surface of the tube core, and then winding a cord thread; winding a steel wire rope on the surface of the cord; winding a middle rubber layer rubber sheet on the surface of the steel wire rope; the cord thread is wound on the surface of the rubber sheet of the middle rubber layer; then the outer rubber layer rubber sheet and the water cloth are wound and then the vulcanization process stage is carried out. The invention relates to a shock insulation functional rubber hose which is a functional hose applied to a building pipeline shock-proof system and has the functions of length compensation (including transverse compensation and longitudinal compensation) and shock insulation and noise reduction when an earthquake occurs.
Description
Technical Field
The invention relates to the technical field of rubber hoses, in particular to a shock insulation rubber hose and a preparation method thereof.
Background
In order to implement the earthquake-proof and disaster-reduction law of the people's republic of China and the policy of taking prevention as the main policy, China sets the national standard earthquake-proof design code of buildings, and the region with earthquake-proof intensity of 6 degrees or more is regulated in the code to be subjected to earthquake-proof design buildings. From the investigation of global major earthquake disasters, more than 90% of human life and death are caused by the damage or collapse of buildings. The damage and collapse reasons of the building in the earthquake are discussed and prevented, and the construction of the earthquake-resistant building which can withstand the strong earthquake from the engineering is the most direct and effective method for reducing the earthquake disasters. The improvement of the earthquake resistance of buildings is one of the main measures for improving the comprehensive defense capability of cities, and is also the primary main task in the work of earthquake prevention and disaster reduction.
A rubber hose is a type of tubular rubber article used to transport gaseous, liquid, slurry or particulate materials. The rubber hose is composed of an inner rubber layer, an outer rubber layer and a middle framework layer, wherein the framework layer can be made of synthetic fibers, carbon fibers or steel wires. The inner rubber layer of the rubber hose directly bears the abrasion and the erosion of the conveying medium; the outer rubber layer protects the inner body of the rubber hose from being damaged and eroded by the external environment; the framework layer is a bearing layer of the rubber pipe and endows the pipe body with strength and rigidity.
How to ensure that the functionality of the piping system in the building is not damaged? This puts high demands on the pipe deformation technology. The rubber hose with the shock insulation function can effectively connect the length supply of various pipelines in the vertical direction and the horizontal direction and shock insulation and noise reduction when the pipelines meet an earthquake, so that the pipeline system is not seriously deformed and damaged under the action of the earthquake, and finally the functionality of the pipeline system is ensured.
The application technical field of the rubber hose with the shock insulation function is the technical field of pipeline shock-resistant systems in engineering construction, so that the rubber hose has no severe requirements on the physical properties and the mechanical properties of rubber materials. Therefore, how to provide a functional hose applied to a building pipeline earthquake-resistant system is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention provides a functional rubber hose capable of automatically compensating length, shock insulation and reducing noise when a building vibrates, which mainly has the functions of compensating length (including transverse compensation and longitudinal compensation) and shock insulation and reducing noise among pipelines in the building engineering when an earthquake occurs.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a shock insulation rubber hose, rubber hose comprises interior glue film, well glue film and outer glue film, and its raw and other materials are constituteed and the ratio is as follows:
preferably, the filling reinforcing agent is one or more of carbon black, white carbon black and silicate; the vulcanizing agent is sulfur.
Preferably, the active agent is stearic acid or zinc oxide; the accelerant is one or more of thiurams, thiazoles and sulfenamides; the plasticizer is paraffin oil.
The invention also provides a preparation method of the shock insulation rubber hose, which comprises the following steps:
(1) selecting a tube core, polishing and derusting the tube core, and coating a nonionic milky water-based release agent;
(2) winding the inner rubber layer rubber sheet from one end of the tube core to the other end;
(3) 2 layers of cord threads are wound on the surface of the inner rubber layer rubber sheet;
(4) winding a layer of steel wire rope on the surface of the cord;
(5) winding a middle rubber layer rubber sheet on the surface of the steel wire rope, wherein the winding thickness is 1.5-2.0 mm;
(6) 2 layers of cord threads are wound on the surface of the middle rubber layer rubber sheet;
(7) winding the outer rubber layer rubber sheet with the winding thickness of 1.5-3.0 mm;
(8) and winding a layer of water cloth on the surface of the outer rubber layer and then entering a vulcanization process stage.
Preferably, before the shock insulation rubber hose is prepared, the raw materials of the inner rubber layer, the middle rubber layer and the outer rubber layer are subjected to matching treatment of one section of rubber material and two sections of rubber materials to obtain an inner rubber layer rubber sheet, a middle rubber layer rubber sheet and an outer rubber layer rubber sheet.
Preferably, the method for the cooperative treatment of the first-stage sizing material and the second-stage sizing material comprises the following steps:
(A) compounding of a length of glue
A1, firstly putting weighed ethylene propylene diene monomer and chlorinated polyethylene rubber into an internal mixer, and then putting the weighed filling reinforcing agent, activator and plasticizer into an internal mixing chamber for internal mixing; the pressure of the internal mixer is set to be 7 +/-0.5 MPa;
a2, when the temperature of the mixing chamber reaches 130 ℃, turning over the rubber material once, cleaning the powder on the mixing chamber, and repeating the operation for three times, wherein the turning-over time interval is 20 s;
a3, discharging the rubber material when the temperature of the mixing chamber reaches 145 ℃ to obtain mixed rubber, and conveying the mixed rubber to an open mill; the roller spacing of the open mill is set to be 1 mm;
a4, thinning the mixed rubber by using an open mill for three times, and standing the rubber material for more than 8 hours after the rubber material is discharged to obtain an inner rubber layer rubber material, a middle rubber layer rubber material and an outer rubber layer rubber material;
(B) compounding of two-stage sizing
B1, putting the rubber material obtained in the step A4 into an internal mixer, and then putting the weighed vulcanizing agent and the accelerator into the internal mixer in sequence, wherein the pressure of the internal mixer is set to be 6-8 Mpa;
b2, when the temperature of the internal mixer reaches 40 ℃, lifting the top bolt and turning over the rubber material for the first time; and when the temperature of the internal mixer reaches 50-70 ℃, discharging the rubber material after internal mixing is finished, conveying the rubber material to an open mill, thinning the rubber material, adjusting the thickness to 7-8mm after thinning twice, and then discharging the rubber material.
Preferably, in the step (2), the winding thickness of the inner glue layer is 2.0-3.5 mm.
Preferably, in the steps (3), (4) and (6), the value of the cord thread force of the layer is required to be more than or equal to 3 times of the working pressure (the calculated bursting pressure of the hose is 3 times of the working pressure); the winding angle of the cord is 54 degrees; the winding mode of the cord is crossed winding; the laying length of the cord thread needs to exceed the total length of the tube body by 200 mm and 300 mm.
Preferably, in the step (4), the diameter of the steel wire rope is selected to be 1.5-2.5 mm; when winding, the distance between the centers of the steel wire ropes is 10-12 mm.
Preferably, in the step (8), the vulcanization process may be: one of nylon resin-coated vulcanization, resin-coated sleeve vulcanization and shape memory alloy-coated vulcanization; the vulcanization temperature was set at 140 ℃ for 90min and the pressure at 0.4 MPa.
Compared with the prior art, the invention has the following beneficial effects:
1. the vibration isolation rubber hose prepared by the invention is composed of an inner rubber layer with good air tightness and flexibility, an enhancement layer with good ductility and stability and an outer rubber layer with ozone resistance and aging resistance, has high internal density, can bear higher pressure and has a stable elastic reset function.
2. The invention relates to a shock insulation functional rubber hose which is a functional hose applied to a building pipeline shock-proof system, can be applied to building engineering, and has the functions of length compensation (including transverse compensation and longitudinal compensation) and shock insulation and noise reduction when an earthquake occurs.
3. According to the shock insulation rubber hose, the rubber layer with good ductility and rebound resilience can be obtained by the rubber material matching method, the elongation at break can reach 516%, and the requirement of length supply of the pipe during displacement is met; the tensile strength is 12 MPa; the brittleness temperature can reach-54 ℃ at the lowest, and the normal transportation of the medium in the pipe under the low temperature environment is met.
4. The shock insulation functional rubber hose can better protect the internal structure stability of a building when an earthquake occurs. The physical and mechanical properties of the rubber have been detected by national inspection departments; and (3) performing performance tests and detections on normal-temperature air tightness, low-temperature air tightness, verification pressure, bursting pressure, interlayer adhesion performance, allowable maximum displacement and the like of the rubber hose. And transverse and longitudinal destructive displacement experiments are carried out on the rubber hose (the displacement condition is shown in the six and seven attached drawings), and the transverse maximum displacement can reach 400 mm. The experimental results of the invention all reach the national standard requirements and are successfully applied to the construction of national key projects.
Drawings
Fig. 1 maximum allowable displacement performance test (vertical installation) of vibration isolation rubber hose.
Detailed Description
The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
The present invention will be further described with reference to the following specific examples.
The experimental procedures, in which specific conditions are not noted in the following examples, are generally carried out under conventional conditions or conditions recommended by the manufacturers.
Example 1
The raw materials of the inner rubber layer rubber sheet, the middle rubber layer rubber sheet and the outer rubber layer rubber sheet are selected and proportioned as follows:
example 2:
the raw materials of the inner rubber layer rubber sheet, the middle rubber layer rubber sheet and the outer rubber layer rubber sheet are selected and proportioned as follows:
example 3:
the raw materials of the inner rubber layer rubber sheet, the middle rubber layer rubber sheet and the outer rubber layer rubber sheet are selected and proportioned as follows:
example 4
The components and the mixture ratio are selected according to the embodiment 1, and the two-stage sizing material matching process is carried out:
(A) compounding of a length of glue
A1, firstly putting weighed ethylene propylene diene monomer rubber and chlorinated polyethylene rubber into an internal mixer, and then putting the weighed filling reinforcing agent, activator and plasticizer into an internal mixing chamber for internal mixing; the pressure of the internal mixer is set to be 7 Mpa;
a2, when the temperature of the mixing chamber reaches 130 ℃, turning over the rubber material once, cleaning the powder on the mixing chamber, and repeating the operation for three times, wherein the turning-over time interval is 20 s;
a3, discharging the rubber material when the temperature of the mixing chamber reaches 145 ℃ to obtain mixed rubber, and conveying the mixed rubber to an open mill; the roller spacing of the open mill is set to be 1 mm;
a4, thinning the mixed rubber by using an open mill for three times, and standing the rubber for more than 8 hours after the rubber is discharged to obtain an inner rubber layer rubber, a middle rubber layer rubber and an outer rubber layer rubber;
(B) compounding of two-stage sizing
B1, putting the rubber material obtained in the step A4 into an internal mixer, and then putting the weighed vulcanizing agent and the accelerator into the internal mixer in sequence, wherein the pressure of the internal mixer is set to be 7 Mpa;
b2, when the temperature of the internal mixer reaches 40 ℃, lifting the top bolt and turning over the rubber material for the first time; when the temperature of the internal mixer reaches 60 ℃, discharging the rubber after internal mixing is finished, conveying the rubber to an open mill, thinning the rubber, adjusting the thickness to be 7-8mm after thinning the rubber twice, and then discharging the rubber.
Example 5
Selecting the components and the mixture ratio according to the embodiment 2, and performing two-stage rubber material matching processes:
(A) compounding of a length of glue
A1, firstly putting weighed ethylene propylene diene monomer and chlorinated polyethylene rubber into an internal mixer, and then putting the weighed filling reinforcing agent, activator and plasticizer into an internal mixing chamber for internal mixing; the pressure of the internal mixer is set to be 6.5 Mpa;
a2, when the temperature of the mixing chamber reaches 130 ℃, turning over the rubber material once, cleaning the powder on the mixing chamber, and repeating the operation for three times, wherein the turning-over time interval is 20 s;
a3, discharging the rubber material when the temperature of the mixing chamber reaches 145 ℃ to obtain mixed rubber, and conveying the mixed rubber to an open mill; the roller spacing of the open mill is set to be 1 mm;
a4, thinning the mixed rubber by using an open mill for three times, and standing the rubber material for more than 8 hours after the rubber material is discharged to obtain an inner rubber layer rubber material, a middle rubber layer rubber material and an outer rubber layer rubber material;
(B) compounding of two-stage sizing
B1, putting the rubber material obtained in the step A4 into an internal mixer, and then putting the weighed vulcanizing agent and the accelerator into the internal mixer in sequence, wherein the pressure of the internal mixer is set to be 6.5 Mpa;
b2, when the temperature of the internal mixer reaches 40 ℃, lifting the top bolt and turning over the rubber material for the first time; when the temperature of the internal mixer reaches 50 ℃, discharging the rubber materials after internal mixing is finished, conveying the rubber materials to an open mill, thinning the rubber materials, adjusting the thickness to be 7-8mm after thinning the rubber materials twice, and then discharging the rubber materials.
Example 6
The components and the mixture ratio are selected according to the embodiment 3, and the two-stage rubber material matching process is carried out:
(A) compounding of a length of glue
A1, firstly putting weighed ethylene propylene diene monomer and chlorinated polyethylene rubber into an internal mixer, and then putting the weighed filling reinforcing agent, activator and plasticizer into an internal mixing chamber for internal mixing; the pressure of the internal mixer is set to be 7.5 Mpa;
a2, when the temperature of the mixing chamber reaches 130 ℃, turning over the rubber material once, cleaning the powder on the mixing chamber, and repeating the operation for three times, wherein the turning-over time interval is 20 s;
a3, discharging the rubber material when the temperature of the mixing chamber reaches 145 ℃ to obtain mixed rubber, and conveying the mixed rubber to an open mill; the roller spacing of the open mill is set to be 1 mm;
a4, thinning the mixed rubber by using an open mill for three times, and standing the rubber material for more than 8 hours after the rubber material is discharged to obtain an inner rubber layer rubber material, a middle rubber layer rubber material and an outer rubber layer rubber material;
(B) compounding of two-stage sizing
B1, putting the rubber material obtained in the step A4 into an internal mixer, and then putting the weighed vulcanizing agent and the accelerator into the internal mixer in sequence, wherein the pressure of the internal mixer is set to be 7.5 Mpa;
b2, when the temperature of the internal mixer reaches 40 ℃, lifting the top bolt and turning over the rubber material for the first time; and when the temperature of the internal mixer reaches 50-70 ℃, discharging the rubber material after internal mixing is finished, conveying the rubber material to an open mill, thinning the rubber material, adjusting the thickness to 7-8mm after thinning twice, and then discharging the rubber material.
Example 7
The preparation method of the shock insulation rubber hose uses the three films obtained in the embodiment 4, and comprises the following steps:
1. selecting a pipe core with the ID of 76mm and the working pressure of 1.6Mpa, polishing and derusting the pipe core, and uniformly coating a layer of nonionic milky water-based release agent;
2. winding the inner rubber sheet from one end of the tube core to the other end, wherein the total thickness of the wound rubber sheet is 2.5 mm;
3. 2 layers of reinforced cords are wound on the surface of the inner rubber at an angle of 54 degrees, and the winding mode is cross winding;
4. winding steel wire ropes with the diameter of 1.5mm on the surface of the reinforced cord, wherein the center distance of the steel wire ropes is 10 mm;
5. winding medium adhesive with the thickness of 1.5mm on the surface of the steel wire rope;
6. 2 layers of reinforced cords are wound on the surface of the middle rubber layer, the winding mode is winding, and the winding angle is 54 degrees;
7. wherein the 4 layers of cord thread force values mentioned in the 3 and 6 are more than or equal to 3 times of the working pressure, and in addition, the laying length of the cord thread should exceed the length 200 of the pipe body for completing the loop flange process;
8. the outer adhesive layer needs to be wound on the outermost layer of the pipe body, and the winding thickness is 1.5 mm;
9. after the surface of the outer rubber layer is wound with water cloth, a vulcanization process stage is carried out, wherein the vulcanization process is selected to be nylon-coated resin vulcanization;
10. the vulcanization temperature was set at 140 ℃ for 90min and the pressure at 0.4 MPa.
Example 8
The preparation method of the shock insulation rubber hose uses the three films obtained in the embodiment 5, and comprises the following steps:
1. selecting a tube core with ID152mm, polishing and derusting the tube core under the working pressure of 1.6Mpa, and uniformly coating a layer of nonionic milky water-based release agent;
2. winding an inner rubber film from one end of the tube core to the other end, wherein the total thickness of the wound rubber is 2.5 mm;
3. 2 layers of reinforced cords are wound on the surface of the inner rubber at an angle of 54 degrees, and a cross winding mode is required to be adopted for ensuring the equality of force values during winding;
4. winding steel wire ropes with the diameter of 2.5mm on the surface of the reinforced cord, wherein the center distance of the steel wire ropes is 12 mm;
5. winding medium adhesive with the thickness of 2.5mm on the surface of the steel wire rope;
6. 2 layers of reinforced cords are wound on the surface of the middle rubber layer, a cross winding mode is required to be adopted for ensuring the equality of force values during winding, and the winding angle is 54 degrees;
7. wherein the 6 layers of cord thread force values mentioned in the 3 and 6 are more than or equal to 3 times of the working pressure, and in addition, the laying length of the cord thread should exceed the length 300 of the pipe body for completing the loop flange process;
8. the outer adhesive layer is required to be wound on the outermost layer of the pipe body to mainly protect the pipe body, resist aging and crack, and the winding thickness is 2.0 mm;
9. after the surface of the outer rubber layer is wound with water cloth, a vulcanization process stage is carried out, wherein the vulcanization process is selected as resin-coated sleeve vulcanization;
10. the vulcanization temperature was set at 140 ℃ for 90min and the pressure at 0.4 MPa.
Example 9
The preparation method of the shock insulation rubber hose uses three films obtained in any embodiment 6, and comprises the following steps:
1. selecting a tube core with ID350mm under the working pressure of 1.6Mpa, polishing and derusting the tube core, and uniformly coating a layer of release agent;
2. winding an inner rubber film from one end of the tube core to the other end, wherein the total thickness of the wound rubber is 2.5 mm;
3. 2 layers of reinforced cords are wound on the surface of the inner rubber at an angle of 54 degrees, and a cross winding mode is required to be adopted for ensuring the equality of force values during winding;
4. winding steel wire ropes with the diameter of 2.0mm on the surface of the reinforced cord, wherein the center distance of the steel wire ropes is 11 mm;
5. winding medium adhesive with the thickness of 2.0mm on the surface of the steel wire rope;
6. 2 layers of reinforced cords are wound on the surface of the middle rubber layer, a cross winding mode is required to be adopted for ensuring the equality of force values during winding, and the winding angle is 54 degrees;
7. wherein the force values of the cords of the 4 layers mentioned in the 3 and 6 are more than or equal to 3 times of the working pressure, and in addition, the laying lengths of the cords exceed the length of the pipe body by 250mm for completing the loop flange process;
8. the outer adhesive layer is required to be wound on the outermost layer of the pipe body to mainly protect the pipe body, resist aging and crack, and the winding thickness is 3.0 mm;
9. after the surface of the outer rubber layer is wound with water cloth, a vulcanization process stage is carried out, wherein the vulcanization process is selected to be bag shape memory alloy vulcanization;
10. the vulcanization temperature was set at 140 ℃ for 90min and the pressure at 0.4 MPa.
Example 10
The vibration isolation rubber hose obtained in example 9 was subjected to a maximum allowable displacement performance test (vertical installation), and fig. 1 is a vibration isolation rubber hose displacement performance test:
the experimental steps are as follows:
1. firstly, installing a shock insulation rubber hose according to the requirements of a test bed;
2. filling water into the pipe body by using a pressurizing pump, pressurizing to the design pressure, and observing whether the pipe body leaks and abnormally deforms after maintaining the pressure for 1 minute;
3. the loading rate of the displacement performance test bed is 400mm/s, the maximum displacement is loaded once, the loading is repeated for 3 times, and whether the pipe body leaks and abnormally deforms is checked.
The experimental results are as follows:
the transverse maximum displacement of the invention can reach 400mm, and the pipe body has no leakage and abnormal deformation. Example 11
The vibration isolation rubber hose of embodiment 9 of the invention is tested, and the inspection report of the flexible hose for construction engineering is as follows:
HEBEI ZEBANG PLASTIC TECHNOLOGY Co.,Ltd.
acceptance and inspection report
Numbering: 20191109001
An inspector: penxinxin review: date of prosperity: 2019.11.9
According to the detection result, all detection indexes of the invention accord with the national relevant detection standard.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the embodiment disclosure, since it corresponds to the method of the embodiment disclosure, the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a shock insulation rubber hose, its characterized in that, rubber hose comprises interior glue film, well glue film and outer glue film, and its raw and other materials are constituteed and the ratio is as follows:
2. a shock insulation rubber hose according to claim 1, wherein the filling reinforcing agent is one or more of carbon black, white carbon black and silicate; the vulcanizing agent is sulfur.
3. A vibration-isolating rubber hose as claimed in claim 1, wherein said activator is stearic acid or zinc oxide; the accelerant is one or more of thiurams, thiazoles and sulfenamides; the plasticizer is paraffin oil.
4. A method for producing a seismic isolation rubber hose according to any of claims 1 to 3, comprising the steps of:
(1) selecting a tube core, polishing and derusting the tube core, and coating a nonionic milky water-based release agent;
(2) winding the inner rubber layer rubber sheet from one end of the tube core to the other end;
(3) 2 layers of cord threads are wound on the surface of the inner rubber layer rubber sheet;
(4) winding a layer of steel wire rope on the surface of the cord;
(5) winding a middle rubber layer rubber sheet on the surface of the steel wire rope, wherein the winding thickness is 1.5-2.0 mm;
(6) 2 layers of cord threads are wound on the surface of the middle rubber layer rubber sheet;
(7) winding the outer rubber layer rubber sheet with the winding thickness of 1.5-3.0 mm;
(8) and winding a layer of water cloth on the surface of the outer rubber layer and then entering a vulcanization process stage.
5. The method for preparing the shock insulation rubber hose according to claim 4, wherein before the shock insulation rubber hose is prepared, the raw materials of the inner rubber layer, the middle rubber layer and the outer rubber layer are subjected to matching treatment of one section and two sections of rubber materials to obtain an inner rubber layer rubber sheet, a middle rubber layer rubber sheet and an outer rubber layer rubber sheet.
6. The method for preparing a vibration-isolating rubber hose according to claim 5, wherein the method for matching and processing the first section of rubber material and the second section of rubber material comprises the following steps:
(A) compounding of a length of glue
A1, firstly putting weighed ethylene propylene diene monomer and chlorinated polyethylene rubber into an internal mixer, and then putting the weighed filling reinforcing agent, activator and plasticizer into an internal mixing chamber for internal mixing; the pressure of the internal mixer is set to be 7 +/-0.5 MPa;
a2, when the temperature of the mixing chamber reaches 130 ℃, turning over the rubber material once, cleaning the powder on the mixing chamber, and repeating the operation for three times, wherein the turning-over time interval is 20 s;
a3, discharging the rubber material when the temperature of the mixing chamber reaches 145 ℃ to obtain mixed rubber, and conveying the mixed rubber to an open mill; the roller spacing of the open mill is set to be 1 mm;
a4, thinning the mixed rubber by using an open mill for three times, and standing the rubber for more than 8 hours after the rubber is discharged to obtain an inner rubber layer rubber, a middle rubber layer rubber and an outer rubber layer rubber;
(B) compounding of two-stage sizing
B1, putting the rubber material obtained in the step A4 into an internal mixer, and then putting the weighed vulcanizing agent and the accelerator into the internal mixer in sequence, wherein the pressure of the internal mixer is set to be 6-8 Mpa;
b2, when the temperature of the internal mixer reaches 40 ℃, lifting the top bolt and turning over the rubber material for the first time; and when the temperature of the internal mixer reaches 50-70 ℃, discharging the rubber material after internal mixing is finished, conveying the rubber material to an open mill, thinning the rubber material, adjusting the thickness to 7-8mm after thinning twice, and then discharging the rubber material.
7. The method for preparing a vibration isolation rubber hose according to claim 4, wherein in the step (2), the winding thickness of the inner rubber layer is 2.0-3.5 mm.
8. The method for preparing a shock insulation rubber hose according to claim 4, wherein in the steps (3) and (6), the cord thread force value is more than or equal to 3 times of the working pressure; the winding angle of the cord is 54 degrees; the winding mode of the cord is crossed winding; the laying length of the cord thread needs to exceed the total length of the tube body by 200 mm and 300 mm.
9. The method for preparing a vibration-isolating rubber hose according to claim 4, wherein in the step (4), the diameter of the steel wire rope is selected to be 1.5-2.5 mm; when winding, the distance between the centers of the steel wire ropes is 10-12 mm.
10. The method for preparing a vibration-isolating rubber hose according to claim 4, wherein in the step (8), the vulcanization process method comprises: one of nylon resin-coated vulcanization, resin-coated sleeve vulcanization and shape memory alloy-coated vulcanization; the vulcanization temperature was set at 140 ℃ for 90min and the pressure at 0.4 MPa.
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| CN112268145B (en) | 2022-06-10 |
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Denomination of invention: Vibration isolation rubber hose and its preparation method Effective date of registration: 20221031 Granted publication date: 20220610 Pledgee: Hebei Jingzhou Rural Commercial Bank Co.,Ltd. Pledgor: HEBEI ZEBANG PLASTIC TECHNOLOGY CO.,LTD. Registration number: Y2022980020233 |
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Granted publication date: 20220610 Pledgee: Hebei Jingzhou Rural Commercial Bank Co.,Ltd. Pledgor: HEBEI ZEBANG PLASTIC TECHNOLOGY CO.,LTD. Registration number: Y2022980020233 |