CN106589489A - Expansion joint and preparation method thereof - Google Patents
Expansion joint and preparation method thereof Download PDFInfo
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- CN106589489A CN106589489A CN201610963135.7A CN201610963135A CN106589489A CN 106589489 A CN106589489 A CN 106589489A CN 201610963135 A CN201610963135 A CN 201610963135A CN 106589489 A CN106589489 A CN 106589489A
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- stannous chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses an expansion joint and a preparation method thereof. The expansion joint is prepared from butadiene rubber, PVC, tribasic lead sulfate, dibasic lead sulfate, ABS, cadmium stearate, PMMA, dibutyl laurate, zinc borate hydrate, hydrogenated butadiene-acrylonitrile rubber, NBR, stainless steel powder, stannous chloride and benzoin dimethyl ether. The prepared expansion joint has bending strength of 100 to 120 MPa, Shore hardness of 90 to 100 D, flexural modulus of 1.2 to 1.6 GPa, impact strength of 90 to 110 kJ/m<3>, tearing strength of 30 to 50 kN/m, a Vicat softening point of 140 to 180 DEG C, tensile strength of 60 to 80 MPa, oil resistance of 30 to 50% under the condition of standing at 80 DEG C for one day, elastic modulus of 135 to 175 MPa, elongation at break of 650 to 850%, compression set of 10 to 15% and Young modulus of 440 to 480 MPa.
Description
Technical field
The present invention relates to tubing field, more particularly to a kind of expansion joint and preparation method thereof.
Background technology
Expansion joint is the additional stress caused because of temperature difference and mechanical vibration for compensation, and is arranged on container casing or pipeline
On a kind of flexible structure.It is good with reliable operation, performance because it is used as a kind of elastic compensation element that can freely stretch
Well, the advantages of compact conformation, have been widely used in departments such as chemical industry, metallurgy, nuclear energy.
Expansion joint is aided in Computer Telephone Integration, manufactured using a shaped by fluid pressure and mechanical-moulded technology, is had
Size is accurate, the clean and tidy hurtless measure in surface, product with compact structure, compensation dosage big, No leakage, corrosion-resistant, life-span length, be easily installed,
The advantages of reliable product quality.It is that user develops it simultaneously also dependent on User working environment, condition and fatigue rupture number of times
The FlexbleJoint of its type and purposes.The product is widely used in iron and steel, oil, chemical industry, metallurgy, electric power, plumbing, building
Etc. industry.
Expansion joint is traditionally also compensator, or telescopic joint.By the corrugated tube for constituting its operative body（A kind of elasticity unit
Part）With the adnexa such as end pipe, support, flange, conduit composition.Expansion joint be to compensate for because temperature difference and mechanical vibration cause it is attached
Plus stress, and a kind of flexible structure on being arranged on container casing or pipeline.Using the effectively flexible of its operative body corrugated tube
Deformation, with the change in size that absorption line, conduit, container etc. are produced by the reason such as expanding with heat and contract with cold, or compensation pipes, conduit,
Axial, the horizontal and angular displacement of container etc..Can also be used for noise-and-vibration-reduction, in heat supply, during in order to prevent heat supply pipeline from heating up, by
Cause pipe deforming or destruction in thermal stretching or temperature stress, needs arrange compensator on pipeline, to compensate the heat of pipeline
Elongation, so as to reducing the stress of tube wall and acting on valve member or the active force on supporting structure.
Because expansion joint is used as a kind of elastic compensation element that can freely stretch, with reliable operation, functional, structure
Compact the advantages of, have been widely used in departments such as chemical industry, metallurgy, nuclear energy.The expansion joint adopted on container, there is various ways,
For the shape of ripple, apply the most extensive with U-shaped expansion joint, secondly also have Ω shapes and C-shaped etc..And adopt on pipeline
Expansion joint be divided into universal, pressure balance type, hinge type and Universal connector hair style etc. for structure compensation, again.
Bellows expansion joint is with a kind of expansion joint made by metal bellowss.It can be flexible along conduit axis direction,
Fair expansion joint is permitted a small amount of bending.Axial length compensation is carried out on pipeline.In order to prevent from exceeding the compensation dosage of permission, in ripple
Pipe two ends are provided with protection pull bar or protection ring, and on the two ends pipeline being connected with it guiding trestle is arranged.There is corner in addition
Formula and transverse type expansion joint, can be used to compensate the corner deformation of pipeline and transversely deforming.The advantage of this kind of expansion joint is to save empty
Between, material is saved, it is easy to standardization and batch production, have the disadvantage that the life-span is shorter.Bellows expansion joint is generally used for temperature and pressure
Power is not bery high, on the pipeline that length is shorter.With the raising of corrugated tube production technology level, the range of application of this kind of expansion joint is just
Expanding.At present, bellows expansion joint can be used in the piping of 6.0 MPas of maximum pressure.
Telescopic extension section is constituted by making moving axially relative internal and external casing.It is close using stuffing-box between internal and external casing
Envelope.Two ends pipe is kept to move on an axis when using.Product mainly has the groups such as sleeve (core pipe), shell, encapsulant
Into. for compensating the axial stretching and axial rotation at any angle of pipeline. with small volume compensation dosage it is big the characteristics of be applied to
Hot water, steam, oils medium, by sliding motion of the sliding sleeve to outer sleeve, reach the compensation of thermal expansion.
The inner sleeve of slip-type expansion joint is connected with pipeline, using the principle and structure of high-performance self-pressing type dynamic sealing, it
Can carry out slidably adapting to the seal request of any pipeline in inside the shell with stretching for pipeline. shell and inner sleeve
Between sealed using novel synthetic material, can high temperature resistant, anticorrosion aging resistance, Applicable temperature -40 to 150 in particular cases may be used
Both can guarantee that up to 350. and slid axially, can guarantee that medium was not leaked in pipe again.With social city, technicalization, hommization
Development, design a kind of impact strength is high, tensile strength is high, elongation at break is high, hardness is high and bending strength is high expansion joint and
Its preparation method, to meet the market demand, is very important.
The content of the invention
The technical problem of solution：
The application is for existing expansion joint tensile strength is low, impact strength is low, elongation at break is low and the low technology of bending strength
A kind of problem, there is provided expansion joint and preparation method thereof.
Technical scheme：
A kind of expansion joint, raw materials by weight portion proportioning is as follows：100 parts of butadiene rubber, PVC40-80 parts, tribasic lead sulfate 3-
7 parts, dibasic lead phosphite 1-5 parts, ABS10-30 parts, cadmium stearate 1.5-3.5 parts, PMMA2-8 parts, Laurel dibutyl phthalate 2-
6 parts, hydration zinc borate 4-8 parts, hydrogenated butyronitrile glue 60-80 parts, NBR40-60 parts, stainless steel metal powder 25-65 parts, stannous chloride
1.5-5.5 part, dimethoxybenzoin 0.3-0.7 parts.
As a preferred technical solution of the present invention：The raw materials by weight portion proportioning of the expansion joint is as follows：Along fourth
100 parts of rubber, PVC50-70 parts, tribasic lead sulfate 4-6 parts, dibasic lead phosphite 2-4 parts, ABS15-25 parts, stearic acid
Cadmium 2-3 parts, PMMA3-7 parts, Laurel dibutyl phthalate 3-5 parts, hydration zinc borate 5-7 parts, hydrogenated butyronitrile glue 65-75 parts, NBR45-
55 parts, stainless steel metal powder 35-55 parts, stannous chloride 2.5-4.5 parts, dimethoxybenzoin 0.4-0.6 parts.
As a preferred technical solution of the present invention：The raw materials by weight portion proportioning of the expansion joint is as follows：Along fourth
100 parts of rubber, PVC50 parts, 4 parts of tribasic lead sulfate, 2 parts of dibasic lead phosphite, ABS15 parts, 2 parts of cadmium stearate, PMMA3
Part, 3 parts of Laurel dibutyl phthalate, 5 parts of hydration zinc borate, 65 parts of hydrogenated butyronitrile glue, NBR45 parts, 35 parts of stainless steel metal powder, chlorination
2.5 parts of stannous, 0.4 part of dimethoxybenzoin.
As a preferred technical solution of the present invention：The raw materials by weight portion proportioning of the expansion joint is as follows：Along fourth
100 parts of rubber, PVC70 parts, 6 parts of tribasic lead sulfate, 4 parts of dibasic lead phosphite, ABS25 parts, 3 parts of cadmium stearate, PMMA7
Part, 5 parts of Laurel dibutyl phthalate, 7 parts of hydration zinc borate, 75 parts of hydrogenated butyronitrile glue, NBR55 parts, 55 parts of stainless steel metal powder, chlorination
4.5 parts of stannous, 0.6 part of dimethoxybenzoin.
As a preferred technical solution of the present invention：The raw materials by weight portion proportioning of the expansion joint is as follows：Along fourth
100 parts of rubber, PVC60 parts, 5 parts of tribasic lead sulfate, 3 parts of dibasic lead phosphite, ABS20 parts, 2.5 parts of cadmium stearate,
PMMA5 parts, 4 parts of Laurel dibutyl phthalate, 6 parts of hydration zinc borate, 70 parts of hydrogenated butyronitrile glue, NBR50 parts, stainless steel metal powder 45
Part, 3.5 parts of stannous chloride, 0.5 part of dimethoxybenzoin.
As a preferred technical solution of the present invention：The preparation method step of the expansion joint is：
The first step：Weigh butadiene rubber, PVC, tribasic lead sulfate, dibasic lead phosphite, ABS, cadmium stearate, PMMA, the moon
Cinnamic acid dibutyl ester, hydration zinc borate, hydrogenated butyronitrile glue, NBR, stainless steel metal powder, stannous chloride and dimethoxybenzoin；
Second step：Butadiene rubber, PVC, stainless steel metal powder and stannous chloride input is provided with into the reaction of agitator and thermometer
In kettle, 60-80 DEG C is warming up to, stirs 60-100min, mixing speed is 800-900 rev/min；
3rd step：Surplus stock is added, in input kneader, 60-80min, extruder temperature feed is mediated at 80-100 DEG C
170-180 DEG C of section, 180-200 DEG C of compression section, 200-220 DEG C of metering section, 220-240 DEG C of die temperature, screw speed 36-40r/
Min, hauling speed 0.5-0.7m/min.
Beneficial effect：
Compared to the prior art a kind of expansion joint of the present invention and preparation method thereof adopts above technical scheme, with following skill
Art effect：1st, bending strength 100-120MPa, shore hardness 90-100D, bending moduluses 1.2-1.6GPa, impact strength 90-
110kJ/m3；2nd, tearing strength 30-50kN/m, 140-180 DEG C of Vicat softening point, tensile strength 60-80MPa；3rd, 80 DEG C it is next
Its oil resistivity 30-50%, elastic modelling quantity 135-175MPa, elongation at break 650-850%；4th, compression set 10-15%, poplar
Family name's modulus 440-480MPa, mechanical property is good, can extensively produce and constantly replace current material.
Specific embodiment
Embodiment 1:
By weight proportioning weighs 100 parts of butadiene rubber, PVC40 parts, 3 parts of tribasic lead sulfate, dibasic lead phosphite 1
Part, ABS10 parts, 1.5 parts of cadmium stearate, PMMA2 parts, 2 parts of Laurel dibutyl phthalate, 4 parts of hydration zinc borate, hydrogenated butyronitrile glue 60
Part, NBR40 parts, 25 parts of stainless steel metal powder, 1.5 parts of stannous chloride, 0.3 part of dimethoxybenzoin.
Butadiene rubber, PVC, stainless steel metal powder and stannous chloride input is provided with into the reactor of agitator and thermometer
In, 60 DEG C are warming up to, 60min is stirred, mixing speed is 800 revs/min.
Surplus stock is added, in input kneader, 60min, 170 DEG C of extruder temperature feed section, pressure is mediated at 80 DEG C
180 DEG C of contracting section, 200 DEG C of metering section, 220 DEG C of die temperature, screw speed 36r/min, hauling speed 0.5m/min.
Bending strength 100MPa, shore hardness 90D, bending moduluses 1.2GPa, impact strength 90kJ/m3；Tearing strength
30kN/m, 140 DEG C of Vicat softening point, tensile strength 60MPa；80 DEG C of next day oil resistivitys 30%, elastic modelling quantity 135MPa, fracture
Percentage elongation 650%；Compression set 15%, Young's moduluss 440MPa, mechanical property is good, can extensively produce and constantly replace existing
There is material.
Embodiment 2:
By weight proportioning weighs 100 parts of butadiene rubber, PVC80 parts, 7 parts of tribasic lead sulfate, dibasic lead phosphite 5
Part, ABS30 parts, 3.5 parts of cadmium stearate, PMMA8 parts, 6 parts of Laurel dibutyl phthalate, 8 parts of hydration zinc borate, hydrogenated butyronitrile glue 80
Part, NBR60 parts, 65 parts of stainless steel metal powder, 5.5 parts of stannous chloride, 0.7 part of dimethoxybenzoin.
Butadiene rubber, PVC, stainless steel metal powder and stannous chloride input is provided with into the reactor of agitator and thermometer
In, 80 DEG C are warming up to, 100min is stirred, mixing speed is 900 revs/min.
Surplus stock is added, in input kneader, 80min, 180 DEG C of extruder temperature feed section, pressure is mediated at 100 DEG C
200 DEG C of contracting section, 220 DEG C of metering section, 240 DEG C of die temperature, screw speed 40r/min, hauling speed 0.7m/min.
Bending strength 105MPa, shore hardness 93D, bending moduluses 1.3GPa, impact strength 95kJ/m3；Tearing strength
35kN/m, 150 DEG C of Vicat softening point, tensile strength 65MPa；80 DEG C of next day oil resistivitys 35%, elastic modelling quantity 145MPa, fracture
Percentage elongation 700%；Compression set 14%, Young's moduluss 450MPa, mechanical property is good, can extensively produce and constantly replace existing
There is material.
Embodiment 3:
By weight proportioning weighs 100 parts of butadiene rubber, PVC50 parts, 4 parts of tribasic lead sulfate, dibasic lead phosphite 2
Part, ABS15 parts, 2 parts of cadmium stearate, PMMA3 parts, 3 parts of Laurel dibutyl phthalate, 5 parts of hydration zinc borate, 65 parts of hydrogenated butyronitrile glue,
NBR45 parts, 35 parts of stainless steel metal powder, 2.5 parts of stannous chloride, 0.4 part of dimethoxybenzoin.
Butadiene rubber, PVC, stainless steel metal powder and stannous chloride input is provided with into the reactor of agitator and thermometer
In, 80 DEG C are warming up to, 100min is stirred, mixing speed is 900 revs/min.
Surplus stock is added, in input kneader, 80min, 180 DEG C of extruder temperature feed section, pressure is mediated at 100 DEG C
200 DEG C of contracting section, 220 DEG C of metering section, 240 DEG C of die temperature, screw speed 40r/min, hauling speed 0.7m/min.
Bending strength 110MPa, shore hardness 95D, bending moduluses 1.4GPa, impact strength 100kJ/m3；Tearing strength
40kN/m, 160 DEG C of Vicat softening point, tensile strength 70MPa；80 DEG C of next day oil resistivitys 40%, elastic modelling quantity 155MPa, fracture
Percentage elongation 750%；Compression set 12%, Young's moduluss 460MPa, mechanical property is good, can extensively produce and constantly replace existing
There is material.
Embodiment 4:
By weight proportioning weighs 100 parts of butadiene rubber, PVC70 parts, 6 parts of tribasic lead sulfate, dibasic lead phosphite 4
Part, ABS25 parts, 3 parts of cadmium stearate, PMMA7 parts, 5 parts of Laurel dibutyl phthalate, 7 parts of hydration zinc borate, 75 parts of hydrogenated butyronitrile glue,
NBR55 parts, 55 parts of stainless steel metal powder, 4.5 parts of stannous chloride, 0.6 part of dimethoxybenzoin.
Butadiene rubber, PVC, stainless steel metal powder and stannous chloride input is provided with into the reactor of agitator and thermometer
In, 60 DEG C are warming up to, 60min is stirred, mixing speed is 800 revs/min.
Surplus stock is added, in input kneader, 60min, 170 DEG C of extruder temperature feed section, pressure is mediated at 80 DEG C
180 DEG C of contracting section, 200 DEG C of metering section, 220 DEG C of die temperature, screw speed 36r/min, hauling speed 0.5m/min.
Bending strength 115MPa, shore hardness 98D, bending moduluses 1.5GPa, impact strength 105kJ/m3；Tearing strength
45kN/m, 170 DEG C of Vicat softening point, tensile strength 75MPa；80 DEG C of next day oil resistivitys 45%, elastic modelling quantity 165MPa, fracture
Percentage elongation 800%；Compression set 11%, Young's moduluss 470MPa, mechanical property is good, can extensively produce and constantly replace existing
There is material.
Embodiment 5:
By weight proportioning weighs 100 parts of butadiene rubber, PVC60 parts, 5 parts of tribasic lead sulfate, dibasic lead phosphite 3
Part, ABS20 parts, 2.5 parts of cadmium stearate, PMMA5 parts, 4 parts of Laurel dibutyl phthalate, 6 parts of hydration zinc borate, hydrogenated butyronitrile glue 70
Part, NBR50 parts, 45 parts of stainless steel metal powder, 3.5 parts of stannous chloride, 0.5 part of dimethoxybenzoin.
Butadiene rubber, PVC, stainless steel metal powder and stannous chloride input is provided with into the reactor of agitator and thermometer
In, 70 DEG C are warming up to, 80min is stirred, mixing speed is 850 revs/min.
Surplus stock is added, in input kneader, 70min, 175 DEG C of extruder temperature feed section, pressure is mediated at 90 DEG C
190 DEG C of contracting section, 210 DEG C of metering section, 230 DEG C of die temperature, screw speed 38r/min, hauling speed 0.6m/min.
Bending strength 120MPa, shore hardness 100D, bending moduluses 1.6GPa, impact strength 110kJ/m3；Tearing strength
50kN/m, 180 DEG C of Vicat softening point, tensile strength 80MPa；80 DEG C of next day oil resistivitys 50%, elastic modelling quantity 175MPa, fracture
Percentage elongation 850%；Compression set 10%, Young's moduluss 480MPa, mechanical property is good, can extensively produce and constantly replace existing
There is material.
All components in above example can be with commercially available.
Above-described embodiment is only intended to be illustrated present disclosure, rather than limits, therefore with the present invention's
Any change in claims suitable implication and scope, is all considered as being included within the scope of the claims.
Claims (6)
1. a kind of expansion joint, it is characterised in that the raw materials by weight portion proportioning of the expansion joint is as follows：100 parts of butadiene rubber,
PVC40-80 parts, tribasic lead sulfate 3-7 parts, dibasic lead phosphite 1-5 parts, ABS10-30 parts, cadmium stearate 1.5-3.5
Part, PMMA2-8 parts, Laurel dibutyl phthalate 2-6 parts, hydration zinc borate 4-8 parts, hydrogenated butyronitrile glue 60-80 parts, NBR40-60 parts,
Stainless steel metal powder 25-65 parts, stannous chloride 1.5-5.5 parts, dimethoxybenzoin 0.3-0.7 parts.
2. a kind of expansion joint according to claim 1, it is characterised in that the raw materials by weight portion proportioning of the expansion joint
It is as follows：100 parts of butadiene rubber, PVC50-70 parts, tribasic lead sulfate 4-6 parts, dibasic lead phosphite 2-4 parts, ABS15-25
Part, cadmium stearate 2-3 parts, PMMA3-7 parts, Laurel dibutyl phthalate 3-5 parts, hydration zinc borate 5-7 parts, hydrogenated butyronitrile glue 65-75
Part, NBR45-55 parts, stainless steel metal powder 35-55 parts, stannous chloride 2.5-4.5 parts, dimethoxybenzoin 0.4-0.6 parts.
3. a kind of expansion joint according to claim 1, it is characterised in that the raw materials by weight portion proportioning of the expansion joint
It is as follows：100 parts of butadiene rubber, PVC50 parts, 4 parts of tribasic lead sulfate, 2 parts of dibasic lead phosphite, ABS15 parts, cadmium stearate
2 parts, PMMA3 parts, 3 parts of Laurel dibutyl phthalate, 5 parts of hydration zinc borate, 65 parts of hydrogenated butyronitrile glue, NBR45 parts, stainless steel metal powder
35 parts, 2.5 parts of stannous chloride, 0.4 part of dimethoxybenzoin.
4. a kind of expansion joint according to claim 1, it is characterised in that：The raw materials by weight portion proportioning of the expansion joint
It is as follows：100 parts of butadiene rubber, PVC70 parts, 6 parts of tribasic lead sulfate, 4 parts of dibasic lead phosphite, ABS25 parts, cadmium stearate
3 parts, PMMA7 parts, 5 parts of Laurel dibutyl phthalate, 7 parts of hydration zinc borate, 75 parts of hydrogenated butyronitrile glue, NBR55 parts, stainless steel metal powder
55 parts, 4.5 parts of stannous chloride, 0.6 part of dimethoxybenzoin.
5. a kind of expansion joint according to claim 1, it is characterised in that：The raw materials by weight portion proportioning of the expansion joint
It is as follows：100 parts of butadiene rubber, PVC60 parts, 5 parts of tribasic lead sulfate, 3 parts of dibasic lead phosphite, ABS20 parts, cadmium stearate
2.5 parts, PMMA5 parts, 4 parts of Laurel dibutyl phthalate, 6 parts of hydration zinc borate, 70 parts of hydrogenated butyronitrile glue, NBR50 parts, stainless steel metal
45 parts of powder, 3.5 parts of stannous chloride, 0.5 part of dimethoxybenzoin.
6. the preparation method of expansion joint described in a kind of claim 1, it is characterised in that comprise the steps：
The first step：Weigh butadiene rubber, PVC, tribasic lead sulfate, dibasic lead phosphite, ABS, cadmium stearate, PMMA, the moon
Cinnamic acid dibutyl ester, hydration zinc borate, hydrogenated butyronitrile glue, NBR, stainless steel metal powder, stannous chloride and dimethoxybenzoin；
Second step：Butadiene rubber, PVC, stainless steel metal powder and stannous chloride input is provided with into the reaction of agitator and thermometer
In kettle, 60-80 DEG C is warming up to, stirs 60-100min, mixing speed is 800-900 rev/min；
3rd step：Surplus stock is added, in input kneader, 60-80min, extruder temperature feed is mediated at 80-100 DEG C
170-180 DEG C of section, 180-200 DEG C of compression section, 200-220 DEG C of metering section, 220-240 DEG C of die temperature, screw speed 36-40r/
Min, hauling speed 0.5-0.7m/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610963135.7A CN106589489A (en) | 2016-10-28 | 2016-10-28 | Expansion joint and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610963135.7A CN106589489A (en) | 2016-10-28 | 2016-10-28 | Expansion joint and preparation method thereof |
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| CN106589489A true CN106589489A (en) | 2017-04-26 |
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ID=58590310
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| CN201610963135.7A Pending CN106589489A (en) | 2016-10-28 | 2016-10-28 | Expansion joint and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107141533A (en) * | 2017-06-28 | 2017-09-08 | 扬中市第蝶阀厂有限公司 | A kind of rubber expansion joint material |
| CN107163323A (en) * | 2017-06-28 | 2017-09-15 | 扬中市第蝶阀厂有限公司 | A kind of expansion joint |
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| CN102449369A (en) * | 2009-06-01 | 2012-05-09 | 盖茨公司 | Low-permeation flexible fuel hose |
| CN104194216A (en) * | 2014-08-25 | 2014-12-10 | 赵焕 | Double-walled PVC (polyvinyl chloride) corrugated tube and preparation method thereof |
| CN105256256A (en) * | 2015-11-11 | 2016-01-20 | 江苏宇恒电气有限公司 | Production process of compression-resistant anti-corrosion expansion joint with thermally conductive insulating property |
| CN105440488A (en) * | 2015-12-14 | 2016-03-30 | 安徽宁国市高新管业有限公司 | Heat-resistant corrosion-resistant high-strength material for drainpipe |
| CN105778337A (en) * | 2016-03-23 | 2016-07-20 | 陈逸君 | PVC (polyvinyl chloride) elastomer and method for preparing same |
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- 2016-10-28 CN CN201610963135.7A patent/CN106589489A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102449369A (en) * | 2009-06-01 | 2012-05-09 | 盖茨公司 | Low-permeation flexible fuel hose |
| CN104194216A (en) * | 2014-08-25 | 2014-12-10 | 赵焕 | Double-walled PVC (polyvinyl chloride) corrugated tube and preparation method thereof |
| CN105256256A (en) * | 2015-11-11 | 2016-01-20 | 江苏宇恒电气有限公司 | Production process of compression-resistant anti-corrosion expansion joint with thermally conductive insulating property |
| CN105440488A (en) * | 2015-12-14 | 2016-03-30 | 安徽宁国市高新管业有限公司 | Heat-resistant corrosion-resistant high-strength material for drainpipe |
| CN105778337A (en) * | 2016-03-23 | 2016-07-20 | 陈逸君 | PVC (polyvinyl chloride) elastomer and method for preparing same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107141533A (en) * | 2017-06-28 | 2017-09-08 | 扬中市第蝶阀厂有限公司 | A kind of rubber expansion joint material |
| CN107163323A (en) * | 2017-06-28 | 2017-09-15 | 扬中市第蝶阀厂有限公司 | A kind of expansion joint |
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Application publication date: 20170426 |