CN110410589A - A kind of impact-resistant pipe fitting - Google Patents
A kind of impact-resistant pipe fitting Download PDFInfo
- Publication number
- CN110410589A CN110410589A CN201910619916.8A CN201910619916A CN110410589A CN 110410589 A CN110410589 A CN 110410589A CN 201910619916 A CN201910619916 A CN 201910619916A CN 110410589 A CN110410589 A CN 110410589A
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- China
- Prior art keywords
- bevel phase
- bellows
- connect
- impact
- straight
- Prior art date
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 32
- 239000000843 powder Substances 0.000 claims description 30
- 239000004094 surface-active agent Substances 0.000 claims description 30
- 239000002023 wood Substances 0.000 claims description 30
- 230000002787 reinforcement Effects 0.000 claims description 29
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 27
- 229910052731 fluorine Inorganic materials 0.000 claims description 27
- 239000011737 fluorine Substances 0.000 claims description 27
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 22
- -1 polypropylene Polymers 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 16
- 239000003365 glass fiber Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 13
- 239000012745 toughening agent Substances 0.000 claims description 12
- 239000004743 Polypropylene Substances 0.000 claims description 11
- 229920001155 polypropylene Polymers 0.000 claims description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 2
- 230000003670 easy-to-clean Effects 0.000 abstract description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 11
- 125000000129 anionic group Chemical group 0.000 description 11
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 10
- 229920001296 polysiloxane Polymers 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- 230000032683 aging Effects 0.000 description 8
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 7
- 239000001095 magnesium carbonate Substances 0.000 description 7
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 7
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- 239000011258 core-shell material Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 4
- 230000003712 anti-aging effect Effects 0.000 description 3
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- CHBCHAGCVIMDKI-UHFFFAOYSA-N [F].C=C Chemical group [F].C=C CHBCHAGCVIMDKI-UHFFFAOYSA-N 0.000 description 1
- KBQPEQMZFVCZKQ-UHFFFAOYSA-N [F].OP(O)(O)=O Chemical compound [F].OP(O)(O)=O KBQPEQMZFVCZKQ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- 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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/267—Magnesium carbonate
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present invention relates to pipe fitting technical fields, refer in particular to a kind of impact-resistant pipe fitting, including bellows and the straight outer tube of bellows periphery are arranged in, the bellows is equipped with multiple wave crests, and the periphery of all wave crests is connect with the inner wall of straight outer tube；Trough is equipped between two neighboring wave crest, the junction of wave crest and trough is equipped with reinforcing rib.The present invention is by being arranged straight outer tube so that tube surface is smooth, so that pipe fitting is stronger while easy to clean in impact resistance ability in the periphery of bellows.
Description
Technical field
The present invention relates to pipe fitting technical fields, and in particular to a kind of impact-resistant pipe fitting.
Background technique
For the anti-pressure ability for increasing pipe fitting, ripple can be arranged in producer on pipe fitting often.But the pipe fitting for being provided with ripple is recessed
Convex injustice is easy to shelter evil people and countenance evil practices and not easy to clean, this brings inconvenience for user.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide a kind of impact-resistant pipes
Part.
The purpose of the invention is achieved by the following technical solution: a kind of impact-resistant pipe fitting, including bellows and setting
Straight outer tube in bellows periphery, the bellows are equipped with multiple wave crests, and the periphery of all wave crests is interior with straight outer tube
Wall connection；Trough is equipped between two neighboring wave crest, the junction of wave crest and trough is equipped with reinforcing rib.
Preferably, the impact-resistant pipe fitting further includes the straight inner tube that bellows interior is arranged in, straight inner tube
Outer wall is connect with the inner wall of the bellows.
Preferably, the wave crest include the first bevel phase, straight linkage section and the second bevel phase, straight linkage section with
The inner wall of straight outer tube connects；One end of first bevel phase is connect with a reinforcing rib, first bevel phase it is another
End is connect with one end of straight linkage section, and the other end of the straight linkage section is connect with one end of the second beveled end, and described the
The other end of two bevel phases is connect with another reinforcing rib, and the spacing between the first bevel phase and the second bevel phase is greater than straight company
Connect the length between the both ends of section.
Preferably, the first bevel phase and the second bevel phase include the first rake and the second rake, second inclines
Angle between inclined portion and horizontal plane is less than the angle between the first rake and horizontal plane, and the one of the first rake of the first bevel phase
End is connect with a reinforcing rib, and the one of the second rake of the other end and the first bevel phase of the first rake of the first bevel phase
End connection, the other end of the second rake of the first bevel phase are connect with described one end of straight linkage section；Second bevel phase
One end of first rake is connect with another reinforcing rib, the other end and the second bevel phase of the first rake of the second bevel phase
The second rake one end connection, the other end of the other end of the second rake of the second bevel phase and straight linkage section
Connection.
Preferably, the wave crest includes the first reinforcement bevel phase, the first reinforcement flat segments, the second reinforcement bevel phase, adds
High-amplitude wave paddy section, third reinforce bevel phase, the second reinforcement flat segments and the 4th reinforcement bevel phase, and described first reinforces bevel phase
One end is connect with a reinforcing rib, and the other end of the first reinforcement bevel phase is connect with one end of the first reinforcement flat segments, the
The other end of one reinforcement flat segments is connect with one end of the second reinforcement bevel phase, and second reinforces the other end of bevel phase and reinforce wave
One end connection of paddy section, one end that third reinforces bevel phase are connect with the other end for reinforcing trough section, and third reinforces bevel phase
The other end is connect with one end of the second reinforcement flat segments, and second, which reinforces the other end of flat segments and the 4th, reinforces one end of bevel phase
The other end of connection, the 4th reinforcement bevel phase is connect with another reinforcing rib.
Preferably, the cross section of bellows and the cross section of straight outer tube are circle.
Preferably, the impact-resistant pipe fitting includes sequentially connected at least two pipe unit, all pipe units are wrapped
The bellows and the straight outer tube are included, one end of bellows is equipped with the protrusion stretched out outside straight outer tube one end, institute
The periphery protrusion for stating protrusion is formed with convex block, and the other end protrusion of the straight outer tube is formed with connector sleeve, the connector sleeve
Inner wall be equipped with the first fixture block and the second fixture block, the first fixture block and the second fixture block along connector sleeve axial arranging, the first fixture block and
Card slot is formed between second fixture block, the protrusion in a pipe unit is used for the connector sleeve protruded into another pipe unit, institute
The convex block in pipe unit is stated to be used to be clamped with the card slot in another described pipe unit.
Preferably, the periphery of the protrusion is arranged with sealing ring, the sealing ring in a pipe unit is another for contradicting
The inner wall of connector sleeve in one pipe unit.
Preferably, the bellows includes the raw material of following parts by weight:
Bellows of the invention, is prepared using above-mentioned raw materials, and using polypropylene as major ingredient, other resins and filler are added to it
It is composite modified, to improve the puncture of bellows, tensile strength, self-cleaning and weather-proof anti-ultraviolet ageing.Wherein, gather inclined
Vinyl fluoride itself the excellent anti-intensity that rises, impact resistance intensity, oxidative resistance and self-cleaning, in conjunction with the benefit of wood powder and carbonate
Use is pretended, the weather-proof anti-aging, tensile strength and impact resistance of bellows, compared with polytetrafluoroethylene (PTFE), this hair are further increased
Bright more excellent using Kynoar processing performance, weight is lighter, is more convenient for transporting and safeguard；Fluorine-containing surfactant is added,
Keep wood powder dispersing uniformity more preferable, avoids wood powder reunion/agglomeration and reduce the weather-proof anti-aging and mechanical performance of bellows, absorb
UV resistance is more preferable, while to promote polypropylene to be easier to compatible with Kynoar for the C-F key that contains of fluorocarbon surfactant,
To improve compatibility and improve shock resistance, brittleness is reduced.Be added silane coupling agent, improve glass fibre, carbonate and
Compatibility of the wood powder in polypropylene, so that tensile strength and impact strength all increase while improving the rigidity of bellows；Add
The toughener entered improves toughness, avoids keeping bellows brittle because glass fibre, carbonate and wood powder due to is added, with glass fibre,
Carbonate and wood powder synergistic effect, further increase the tensile strength and impact strength of bellows.It is living to control the fluorochemical surface
The additive amount of property agent is not only able to maintain stable surface activitv at 0.005-0.05 parts, but also is avoided that excessive consumption fluorocarbon surface
Activating agent wastes production cost.
It is furthermore preferred that the carbonate is at least one in basic magnesium carbonate, basic carbonate calcium, magnesium carbonate and calcium carbonate
Kind.
By adopting the above technical scheme, reinforcing effect can be played with wood powder and split the carbon dioxide off under the high temperature conditions
Ambient oxygen content is reduced to improve the anti-flammability of bellows.More there is choosing, the carbonate is magnesium carbonate and calcium carbonate with weight
It is compounded than 1:5-10, is more advantageous to processing, the injection molding of bellows.
It is furthermore preferred that the fluorine-containing surfactant is anionic fluorine-containing surfactant.
It is furthermore preferred that the anionic fluorine-containing surfactant is metal carboxylate fluorine-containing surfactant, Sulfonates
At least one of fluorine-containing surfactant and phosphoric acid salt fluorine-containing surfactant.
By adopting the above technical scheme, carbonate is avoided to fail in conjunction with the radical reaction of fluorine-containing surfactant.Tool
Body, the anionic fluorine-containing surfactant includes but is not limited in Du Pont FSA, FBS, FS-62, FSP, FSJ and FSE
At least one keeps wood powder dispersing uniformity more preferable, avoids wood powder reunion/agglomeration and reduces the weather-proof anti-aging and mechanical of bellows
It is more preferable to absorb UV resistance for performance, while the C-F key that fluorocarbon surfactant contains promotes polypropylene to be easier to and gather inclined fluorine
Ethylene is compatible, to improve compatibility and improve shock resistance, reduces brittleness.
It is furthermore preferred that the processing mode of the wood powder is to cross water after highly basic impregnates 1-3h, dry and obtain.
By adopting the above technical scheme, surface is carried out to wood powder using highly basic to be modified, the crystallinity of wood powder is improved, to improve
Wood powder and polyacrylic mechanical engagement, adhesiveness improve compatibility.
It is furthermore preferred that the toughener is the silicone acrylic compounded rubber with core-shell structure.
By adopting the above technical scheme, for polysiloxanes acrylic acid compounded rubber using organosilicon/acrylic acid as core, shell is methyl-prop
E pioic acid methyl ester or methyl acrylate can not only improve the toughness of bellows, also have excellent ageing-resistant performance, and have excellent
Different low temperature toughening effect.
Preferably, the preparation method of the bellows includes the following steps:
(S1), raw material is weighed by weight, it is spare；
(S2), fluorine-containing surfactant, wood powder, glass fibre, silane coupling agent and carbonate are uniformly mixed, are mixed
Close material；
(S3), polypropylene, Kynoar and toughener are added in the mixed material obtained to step (S2), is sent after mixing
Enter melting extrusion in double screw extruder, is granulated, is then molded into bellows.
It is furthermore preferred that in the step (S3), the screw speed of extrusion equipment is 60-120r/min, the one of extrusion equipment
Area's temperature is 190-200 DEG C, and two area's temperature are 170-175 DEG C, and three area's temperature are 175-180 DEG C, and four area's temperature are 180-185
DEG C, five area's temperature are 185-190 DEG C, and die head temperature is 185-195 DEG C.
The present invention using bellows made from above-mentioned preparation method, can be improved the puncture of bellows, tensile strength, from
Clean property and weather-proof anti-ultraviolet ageing.The preparation method is easy to operate, easy to control, and high production efficiency, production cost is low, can use
In large-scale production.Wherein, in step (S2), fluorine-containing surfactant, wood powder, glass fibre, silane coupling agent and carbonate
Mixing, with, the compatibility of raising and PP/PVDF modified to wood powder, glass fibre and carbonate.
Beneficial effects of the present invention: by the way that straight outer tube is arranged in the periphery of bellows so that tube surface is smooth, thus
So that pipe fitting is stronger while easy to clean in impact resistance ability.
Detailed description of the invention
Fig. 1 is the front view of the embodiment of the present invention 1.
Fig. 2 is cross-sectional view of the Fig. 1 along the direction A-A '.
Fig. 3 is the enlarged diagram of part B in Fig. 2.
Fig. 4 is the front view of the embodiment of the present invention 2.
Fig. 5 is Fig. 4 along the cross-sectional view along the direction C-C '.
Fig. 6 is the enlarged diagram of the part D in Fig. 5.
Fig. 7 is the perspective view that multiple pipe units of the invention cooperate.
Appended drawing reference are as follows: 1, bellows；2, straight outer tube；3, wave crest；31, the first bevel phase；311, the first rake；
312, the second rake；32, straight linkage section；33, the second bevel phase；34, first reinforces bevel phase；35, the first reinforcement is straight
Section；36, second reinforces bevel phase；37, reinforce trough section；38, third reinforces bevel phase；39, second reinforces flat segments；391,
Four reinforce bevel phase；4, trough；5, reinforcing rib；6, pipe unit；61, protrusion；62, convex block；63, connector sleeve；64, the first card
Block；65, the second fixture block；7, straight inner tube；8, sealing ring.
Specific embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further below with reference to examples and drawings
Bright, the content that embodiment refers to not is limitation of the invention.
Embodiment 1
As shown in Figure 1 to Figure 3, including bellows 1 and the flat of 1 periphery of bellows is arranged in a kind of impact-resistant pipe fitting
Straight outer tube 2, the bellows 1 are equipped with multiple wave crests 3, and the periphery of all wave crests 3 is connect with the inner wall of straight outer tube 2；It is adjacent
Trough 4 is equipped between two wave crests 3, the junction of wave crest 3 and trough 4 is equipped with reinforcing rib 5.
The present embodiment is by being arranged straight outer tube 2 so that tube surface is smooth, so that pipe fitting in the periphery of bellows 1
It is stronger while easy to clean in anti-pressure ability.The junction of the trough 4 of the wave crest 3 and bellows 1 of bellows 1, often can be because
Unbalance stress and be broken, this reality embodiment prevents wave crest 3 and trough 4 by the way that reinforcing rib 5 is arranged at wave crest 3 and trough 4
Junction fracture, to further promote the impact resistance ability of the pipe fitting in the present embodiment.
As shown in figure 3, the wave crest 3 includes the first bevel phase 31, straight linkage section 32 and the second bevel phase 33, it is straight
Linkage section 32 is connect with the inner wall of straight outer tube 2；One end of first bevel phase 31 is connect with a reinforcing rib 5, and described
The other end of one bevel phase 31 is connect with one end of straight linkage section 32, the other end and the second inclined-plane of the straight linkage section 32
The one end at end connects, and the other end of second bevel phase 33 is connect with another reinforcing rib 5, and the first bevel phase 31 and second is oblique
Spacing between face section 33 is greater than the length between the both ends of straight linkage section 32.According to the stability of triangle, inclined-plane is opposite
The enabling capabilities of vertical plane are stronger.The present embodiment supports straight linkage section by the first bevel phase 31 and the second bevel phase 33
32, to improve the anti-pressure ability of wave crest 3 and promote the impact resistance ability of the pipe fitting in the present embodiment in turn.
As shown in figure 3, the first bevel phase 31 and the second bevel phase 33 include the first rake 311 and the second rake
312, the angle between the second rake 312 and horizontal plane is less than the angle between the first rake 311 and horizontal plane, the first bevel phase
One end of 31 the first rake 311 is connect with a reinforcing rib 5, the other end of the first rake 311 of the first bevel phase 31
Connect with one end of the second rake 312 of the first bevel phase 31, the other end of the second rake 312 of the first bevel phase 31 with
Described one end of straight linkage section 32 connects；One end of first rake 311 of the second bevel phase 33 and another reinforcing rib 5 connect
It connects, one end of the second rake 312 of the other end and the second bevel phase 33 of the first rake 311 of the second bevel phase 33 connects
It connects, the other end of the second rake 312 of the second bevel phase 33 is connect with the other end of straight linkage section 32.When a face
When span is bigger, the ability of bearing load can be smaller.In the present embodiment, the first bevel phase 31 and the second bevel phase 33 by
The first different rake 311 of tilt angle and the second rake 312 composition, span is smaller, thus bearing capacity is larger.
As shown in Figure 1, the cross section of bellows 1 and the cross section of straight outer tube 2 are circle, so that in the present embodiment
Tubing flux it is larger and less with material.
As shown in Figure 2 and Figure 7, the impact-resistant pipe fitting includes sequentially connected at least two pipe unit 6, all Guan Dan
Member 6 includes the bellows 1 and the straight outer tube 2, and one end of bellows 1, which is equipped with, to be stretched out outside straight 2 one end of outer tube
Protrusion 61, the periphery protrusion of the protrusion 61 is formed with convex block 62, and the other end protrusion of the straight outer tube 2 is formed with
The inner wall of connector sleeve 63, the connector sleeve 63 is equipped with the first fixture block 64 and the second fixture block 65, the first fixture block 64 and the second fixture block 65
Along the axial arranging of connector sleeve 63, card slot, the protrusion in a pipe unit 6 are formed between the first fixture block 64 and the second fixture block 65
Portion 61 is used for the connector sleeve 63 protruded into another pipe unit 6, and the convex block 62 in the pipe unit 6 is used for and another described pipe
Card slot clamping in unit 6.When need to plug into each pipe unit 6 when, the protrusion 61 of a pipe unit 6 is first inserted into another
The connector sleeve 63 of pipe unit 6 then rotates one of pipe unit 6 and convex block 62 is made to enter the first fixture block 64 and the second fixture block 65
Between, to realize the clamping of convex block 62 Yu card slot, and plugging between two pipe units 6 of realization.
As shown in Figure 2 and Figure 7, the periphery of the protrusion 61 is arranged with sealing ring 8, the sealing ring 8 in a pipe unit 6
For contradicting the inner wall of the connector sleeve 63 in another pipe unit 6.To improve the leakproofness between two neighboring pipe unit 6.
As depicted in figs. 1 and 2, the impact-resistant pipe fitting further includes the straight inner tube 7 being arranged in inside bellows 1, is put down
The outer wall of straight inner tube 7 is connect with the inner wall of the bellows 1.Make the inner wall smooth of pipe fitting by straight inner tube 7.When using originally
When pipe fitting in embodiment carries out blowdown, smooth inner wall is smaller to the resistance of sewage, is quickly discharged conducive to sewage.
Embodiment 2
As shown in Figures 4 to 6, the present embodiment the difference from embodiment 1 is that: the wave crest 3 include first reinforce inclined-plane
Section 34, first reinforces the reinforcement of flat segments 35, second bevel phase 36, reinforcement trough section 37, third and reinforces bevel phase 38, second and reinforce
Flat segments 39 and the 4th reinforcement bevel phase 391, one end of the first reinforcement bevel phase 34 are connect with a reinforcing rib 5, institute
The other end for stating the first reinforcement bevel phase 34 is connect with one end of the first reinforcement flat segments 35, and first reinforces the another of flat segments 35
It holds and is connect with one end of the second reinforcement bevel phase 36, second other end for reinforcing bevel phase 36 connects with the one end for reinforcing trough section 37
It connects, one end that third reinforces bevel phase 38 is connect with the other end for reinforcing trough section 37, and third reinforces the other end of bevel phase 38
It is connect with one end of the second reinforcement flat segments 39, second, which reinforces the other end of flat segments 39 and the 4th, reinforces the one of bevel phase 391
The other end of end connection, the 4th reinforcement bevel phase 391 is connect with another reinforcing rib 5.According to the stability of triangle, inclined-plane phase
It is stronger to the enabling capabilities of vertical plane.The present embodiment supports the by the first reinforcement bevel phase 34 and the second reinforcement bevel phase 36
One reinforces flat segments 35, and reinforces bevel phase 38 and the 4th reinforcement bevel phase 391 by third to support the second reinforcement flat segments
39, to improve the anti-pressure ability of wave crest 3 and promote the anti-pressure ability of the pipe fitting in the present embodiment in turn.The span of one plane
Longer, the ability for bearing load is weaker.Also reinforce trough section 37 by being arranged on wave crest 3 in the present embodiment come further
The bearing capacity for improving wave crest 3, to improve the anti-pressure ability of the pipe fitting in the present embodiment.
Embodiment 3
As shown in Fig. 1,2,4 and 5, the bellows 1 includes the raw material of following parts by weight:
The carbonate is that magnesium carbonate and calcium carbonate are compounded with weight ratio 1:8.
The fluorine-containing surfactant is anionic fluorine-containing surfactant.
The anionic fluorine-containing surfactant is that Du Pont FSA and FBS are compounded by weight 1:2.
The processing mode of the wood powder is to cross water after highly basic impregnates 2h, dry and obtain.
The toughener is the silicone acrylic compounded rubber with core-shell structure.The polysiloxanes acrylic acid is compound
For rubber using organosilicon/acrylic acid as core, shell is methyl methacrylate.
The preparation method of the bellows 1 includes the following steps:
(S1), raw material is weighed by weight, it is spare；
(S2), fluorine-containing surfactant, wood powder, glass fibre, silane coupling agent and carbonate are uniformly mixed, are mixed
Close material；
(S3), polypropylene, Kynoar and toughener are added in the mixed material obtained to step (S2), is sent after mixing
Enter melting extrusion in double screw extruder, is granulated, is then molded into bellows 1.
In the step (S3), the screw speed of extrusion equipment is 90r/min, and area's temperature of extrusion equipment is 193 DEG C,
Two area's temperature are 173 DEG C, and three area's temperature are 178 DEG C, and four area's temperature are 183 DEG C, and five area's temperature are 188 DEG C, die head temperature 190
℃。
Embodiment 4
As shown in Fig. 1,2,4 and 5, the bellows 1 includes the raw material of following parts by weight:
The carbonate is that magnesium carbonate and calcium carbonate are compounded with weight ratio 1:5.
The fluorine-containing surfactant is anionic fluorine-containing surfactant.
The anionic fluorine-containing surfactant is Du Pont FS-62.
The processing mode of the wood powder is to cross water after highly basic impregnates 1h, dry and obtain.
The toughener is the silicone acrylic compounded rubber with core-shell structure.The polysiloxanes acrylic acid is compound
For rubber using organosilicon/acrylic acid as core, shell is methyl acrylate.
The preparation method of the bellows 1 includes the following steps:
(S1), raw material is weighed by weight, it is spare；
(S2), fluorine-containing surfactant, wood powder, glass fibre, silane coupling agent and carbonate are uniformly mixed, are mixed
Close material；
(S3), polypropylene, Kynoar and toughener are added in the mixed material obtained to step (S2), is sent after mixing
Enter melting extrusion in double screw extruder, is granulated, is then molded into bellows 1.
In the step (S3), the screw speed of extrusion equipment is 60r/min, and area's temperature of extrusion equipment is 190 DEG C,
Two area's temperature are 170 DEG C, and three area's temperature are 175 DEG C, and four area's temperature are 180 DEG C, and five area's temperature are 185 DEG C, die head temperature 185
℃。
Embodiment 5
As shown in Fig. 1,2,4 and 5, the bellows 1 includes the raw material of following parts by weight:
The carbonate is that magnesium carbonate and calcium carbonate are compounded with weight ratio 15-10.
The fluorine-containing surfactant is anionic fluorine-containing surfactant.
The anionic fluorine-containing surfactant is that Du Pont FSJ and FSE is compounded with weight ratio 1:1.
The processing mode of the wood powder is to cross water after highly basic impregnates 3h, dry and obtain.
The toughener is the silicone acrylic compounded rubber with core-shell structure.The polysiloxanes acrylic acid is compound
For rubber using organosilicon/acrylic acid as core, shell is methyl methacrylate.
The preparation method of the bellows 1 includes the following steps:
(S1), raw material is weighed by weight, it is spare；
(S2), fluorine-containing surfactant, wood powder, glass fibre, silane coupling agent and carbonate are uniformly mixed, are mixed
Close material；
(S3), polypropylene, Kynoar and toughener are added in the mixed material obtained to step (S2), is sent after mixing
Enter melting extrusion in double screw extruder, is granulated, is then molded into bellows 1.
In the step (S3), the screw speed of extrusion equipment is 120r/min, and area's temperature of extrusion equipment is 200
DEG C, two area's temperature are 175 DEG C, and three area's temperature are 180 DEG C, and four area's temperature are 185 DEG C, and five area's temperature are 190 DEG C, and die head temperature is
195℃。
Embodiment 6
As shown in Fig. 1,2,4 and 5, the bellows 1 includes the raw material of following parts by weight:
The carbonate is basic magnesium carbonate.
The fluorine-containing surfactant is anionic fluorine-containing surfactant.
The anionic fluorine-containing surfactant is Du Pont FSA.
The processing mode of the wood powder is to cross water after highly basic impregnates 2.4h, dry and obtain.
The toughener is the silicone acrylic compounded rubber with core-shell structure.The polysiloxanes acrylic acid is compound
For rubber using organosilicon/acrylic acid as core, shell is methyl acrylate.
The preparation method of the bellows 1 includes the following steps:
(S1), raw material is weighed by weight, it is spare；
(S2), fluorine-containing surfactant, wood powder, glass fibre, silane coupling agent and carbonate are uniformly mixed, are mixed
Close material；
(S3), polypropylene, Kynoar and toughener are added in the mixed material obtained to step (S2), is sent after mixing
Enter melting extrusion in double screw extruder, is granulated, is then molded into bellows 1.
In the step (S3), the screw speed of extrusion equipment is 110r/min, and area's temperature of extrusion equipment is 198
DEG C, two area's temperature are 171 DEG C, and three area's temperature are 176 DEG C, and four area's temperature are 183 DEG C, and five area's temperature are 187 DEG C, and die head temperature is
189℃。
Comparative example 1
The difference of this comparative example and embodiment 3 is: the Kynoar replaces with polytetrafluoroethylene (PTFE).
Comparative example 2
The difference of this comparative example and embodiment 3 is: the bellows 1 is free of wood powder, carbonate and glass fibre.
Comparative example 3
The difference of this comparative example and embodiment 3 is: the bellows 1 is free of wood powder.
Embodiment 7
Bellows 1 made from Example 3-6 and comparative example 1-3 tests its tensile strength, impact strength, notch punching
Hit intensity, anti-flammability and weather-proof anti-ultraviolet ageing.Test method is as follows:
Tensile strength test: it is tested at a temperature of 23 ± 2 DEG C according to the regulation of GB/T1040-92, unit MPa.
Impact strength test: according to the regulation of GB/T6112-1985, bellows 1 is taken to stand 8h at a temperature of -5 DEG C, so
The B that drops hammer of 5kg is selected afterwards, and the height of drop for the B that drops hammer is 2m, and whether observation bellows 1 ruptures.
Notch impact strength test: its notch impact strength, unit K J/ are tested using GB/T 1843-2008 testing standard
m2。
Anti-flammability test: its flame retardant rating is tested according to UL94 test method.
Weather-proof anti-ultraviolet ageing test: bellows 1 is after ultraviolet light 1800h, according to the regulation of GB/T1040-92
Tensile strength after testing its irradiation at a temperature of 23 ± 2 DEG C, then calculates the attenuation rate of bellows 1, attenuation rate=(X-Y)/X
× 100%；Wherein, X indicates initial tensile strength, unit MPa；Y indicates the tensile strength after irradiation, unit MPa.
Test result is as follows shown in table 1:
Table 1
By upper table 1 it is found that 1 tensile strength of bellows of the invention reaches 30-36MPa, notch impact strength reaches 12-
13.4KJ/m2, attenuation rate reaches 2.5-3.0%, and stability is high, has preferable puncture, tensile strength and weather-proof anti-purple
Outer aging, UL94 flame retardant rating reach V2 (1.6mm) grade, can avoid being formed conductive and coking under electro ultrafiltration, thus significantly
A possibility that reducing kindling.
Compared with Example 3, comparative example 1 replaces Kynoar with polytetrafluoroethylene (PTFE), although flame retardant rating improves,
It is easier to be formed conductive and coking under electro ultrafiltration, and tensile property, notch impact strength and weather-proof anti-ultraviolet ageing reduce.
Compared with Example 3, comparative example 2 is added without wood powder, carbonate and glass fibre, tensile property, notch shock
Intensity, flame retardant property and weather-proof anti-ultraviolet ageing are deteriorated, and only 2 samples do not rupture 10 samples, and impact strength is poor.
Compared with embodiment 3 and comparative example 2, comparative example 3 is added without wood powder, and tensile property, notch impact strength are more real
The low of example 3 is applied, but compared with the height of comparative example 2, wood powder and carbonate and glass fibre collective effect is added, bellows 1 can be improved
Mechanical performance and impact resistance.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way, In
Do not depart under the premise of present inventive concept it is any obviously replace it is within the scope of the present invention.
Claims (10)
1. a kind of impact-resistant pipe fitting, it is characterised in that: including bellows (1) and be arranged in the straight of bellows (1) periphery
Outer tube (2), the bellows (1) are equipped with multiple wave crests (3), and the periphery of all wave crests (3) connects with the inner wall of straight outer tube (2)
It connects；
Trough (4) are equipped between two neighboring wave crest (3), the junction of wave crest (3) and trough (4) is equipped with reinforcing rib (5).
2. a kind of impact-resistant pipe fitting according to claim 1, it is characterised in that: the impact-resistant pipe fitting further includes setting
The straight inner tube (7) internal in bellows (1) is set, the outer wall of straight inner tube (7) is connect with the inner wall of the bellows (1).
3. a kind of impact-resistant pipe fitting according to claim 1, it is characterised in that: the wave crest (3) includes the first inclined-plane
Section (31), straight linkage section (32) and the second bevel phase (33), the inner wall company of straight linkage section (32) and straight outer tube (2)
It connects；One end of first bevel phase (31) is connect with a reinforcing rib (5), the other end of first bevel phase (31) and flat
One end connection of straight linkage section (32), the other end of the straight linkage section (32) is connect with one end of the second beveled end, described
The other end of second bevel phase (33) is connect with another reinforcing rib (5), the first bevel phase (31) and the second bevel phase (33) it
Between spacing be greater than straight linkage section (32) both ends between length.
4. a kind of impact-resistant pipe fitting according to claim 3, it is characterised in that: the first bevel phase (31) and the second inclined-plane
Section (33) includes the first rake (311) and the second rake (312), the angle between the second rake (312) and horizontal plane
Degree less than the angle between the first rake (311) and horizontal plane, one end of the first rake (311) of the first bevel phase (31) and
The of the connection of one reinforcing rib (5), the other end of the first rake (311) of the first bevel phase (31) and the first bevel phase (31)
One end of two rakes (312) connects, the other end and straight linkage section of the second rake (312) of the first bevel phase (31)
(32) described one end connection；
One end of the first rake (311) of second bevel phase (33) is connect with another reinforcing rib (5), the second bevel phase (33)
The other end of the first rake (311) connect with one end of the second rake (312) of the second bevel phase (33), the second inclined-plane
The other end of the second rake (312) of section (33) is connect with the other end of straight linkage section (32).
5. a kind of impact-resistant pipe fitting according to claim 1, it is characterised in that: the wave crest (3) includes the first reinforcement
Bevel phase (34), first reinforce flat segments (35), the second reinforcement bevel phase (36), reinforce trough section (37), third reinforcement inclined-plane
Section (38), second reinforce flat segments (39) and the 4th reinforcement bevel phase (391), and described first reinforces the one end of bevel phase (34)
It is connect with a reinforcing rib (5), described first, which reinforces the other end of bevel phase (34) and first, reinforces the one end of flat segments (35)
Connection, one end that first other end for reinforcing flat segments (35) reinforces bevel phase (36) with second are connect, and second reinforces bevel phase
(36) the other end is connect with the one end for reinforcing trough section (37), and third reinforces the one end of bevel phase (38) and reinforces trough section
(37) other end connection, one end that the other end that third reinforces bevel phase (38) reinforces flat segments (39) with second are connect, the
One end that two other ends for reinforcing flat segments (39) reinforce bevel phase (391) with the 4th is connect, and the 4th reinforces bevel phase (391)
The other end is connect with another reinforcing rib (5).
6. a kind of impact-resistant pipe fitting according to claim 1, it is characterised in that: the cross section of bellows (1) and flat
The cross section of straight outer tube (2) is circle.
7. a kind of impact-resistant pipe fitting according to claim 1, it is characterised in that: the impact-resistant pipe fitting includes successively
Connection at least two pipe units (6), all pipe units (6) include the bellows (1) and the straight outer tube (2),
One end of bellows (1) is equipped with the protrusion (61) stretched out outside straight outer tube (2) one end, and the periphery of the protrusion (61) is convex
It is formed with out convex block (62), the other end protrusion of the straight outer tube (2) is formed with connector sleeve (63), the connector sleeve (63)
Inner wall is equipped with the first fixture block (64) and the second fixture block (65), the axis of the first fixture block (64) and the second fixture block (65) along connector sleeve (63)
To arrangement, card slot is formed between the first fixture block (64) and the second fixture block (65), the protrusion (61) in a pipe unit (6) is used
In the convex block (62) in the connector sleeve (63) protruded into another pipe unit (6), the pipe unit (6) be used for it is described another
Card slot clamping in pipe unit (6).
8. a kind of impact-resistant pipe fitting according to claim 7, it is characterised in that: the periphery of the protrusion (61) is arranged
Have sealing ring (8), the sealing ring (8) in a pipe unit (6) is used to contradict the connector sleeve (63) in another pipe unit (6)
Inner wall.
9. a kind of impact-resistant pipe fitting according to claim 1, it is characterised in that: the bellows (1) includes following weight
Measure the raw material of part:
10. a kind of impact-resistant pipe fitting according to claim 9, it is characterised in that: the preparation method of the bellows (1)
Include the following steps:
(S1), raw material is weighed by weight, it is spare；
(S2), fluorine-containing surfactant, wood powder, glass fibre, silane coupling agent and carbonate are uniformly mixed, obtain mixture
Material；
(S3), polypropylene, Kynoar and toughener are added in the mixed material obtained to step (S2), is sent into after mixing double
Melting extrusion in screw extruder is granulated, is then molded into bellows (1).
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|---|---|---|---|
| CN201910619916.8A CN110410589A (en) | 2019-07-10 | 2019-07-10 | A kind of impact-resistant pipe fitting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910619916.8A CN110410589A (en) | 2019-07-10 | 2019-07-10 | A kind of impact-resistant pipe fitting |
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| CN110978447A (en) * | 2019-11-28 | 2020-04-10 | 广东安普智信电气有限公司 | Pipe fitting production facility |
| CN112373059A (en) * | 2020-10-29 | 2021-02-19 | 安徽杰蓝特新材料有限公司 | High modulus insulating pp double-walled corrugated pipe for power communication sheath |
| WO2022252711A1 (en) * | 2021-05-31 | 2022-12-08 | 浙江科赛新材料科技有限公司 | Polyetherketoneketone (pekk) extrusion profile |
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