CN102585372B - Pipe joint - Google Patents
Pipe joint Download PDFInfo
- Publication number
- CN102585372B CN102585372B CN201210046219.6A CN201210046219A CN102585372B CN 102585372 B CN102585372 B CN 102585372B CN 201210046219 A CN201210046219 A CN 201210046219A CN 102585372 B CN102585372 B CN 102585372B
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- China
- Prior art keywords
- plastics
- tube stub
- pipe joint
- interface
- linker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000004033 plastic Substances 0.000 claims abstract description 27
- 229920003023 plastic Polymers 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 11
- 239000006096 absorbing agent Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 5
- 239000007822 coupling agent Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims 2
- 239000012467 final product Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract 1
- 235000011613 Pinus brutia Nutrition 0.000 abstract 1
- 241000018646 Pinus brutia Species 0.000 abstract 1
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 12
- 238000012544 monitoring process Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1535—Five-membered rings
- C08K5/1539—Cyclic anhydrides
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- 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
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
-
- 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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/14—Flanged joints
-
- 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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to a pipe joint, and also relates to a new synthetic plastic material. The pipe joint comprises a plurality of integrally arc-shaped connectors, wherein the plurality of connectors encircle and constitute a closed circular region; a connecting plate for connecting ports is arranged in the pine diameter direction of the connectors; jack panels arranged along the circumference of the pipe are arranged at one side opposite to the ports, and the jack panels on the plurality of connectors encircle and constitute a bell-and-spigot for inserting the pipe body. In the technical scheme, the pipe joint is encircled by the plurality of connectors, so that the problem that the large-size pipe joint is inconvenient to machine and use is solved. Meanwhile, one side of the pipe joint is connected with the port by using the connecting plate in a mode of flange connection or gluing or hot sealing and the like, the other side of the pipe joint is used for inserting an end for inserting the end head of a pipe body, and the end head of the pipe body can be inserted into the inner side or the outer side of the bell-and-spigot, so that reliable connection is realized.
Description
Technical field
The present invention relates to public works or fluid transfer facilities, is exactly a kind of tube stub that connects the interface on body and equipment specifically; Also relate to new synthetic plastics material simultaneously.
Background technology
Tube stub is to realize that body is connected with body or web member that body is connected with interface on container, equipment or the interface on other parts.Existing tube stub is all one-piece construction, and the size of the interface that conventionally can connect is less, also less than the applicable tube stub being connected with corresponding large interface on container compared with extra heavy pipe body.
Summary of the invention
Main purpose of the present invention is to provide the tube stub that a kind of applicable large size body is connected with the corresponding interface.
Concrete technical scheme of the present invention is: a kind of tube stub, it is characterized in that: described tube stub comprises the linker that a plurality of integral body is curved, a plurality of linkers enclose and form closed circle region, on linker along caliber to the web plate that is provided for connecting interface, a side relative with interface arranges the jack panel arranging along pipe side face, and the jack panel on a plurality of linkers encloses the bell and spigot that forms grafting body.
In such technical scheme, tube stub is enclosed and is formed by a plurality of linkers, has so just solved the processing of large size tube stub, inconvenient problem with use.Simultaneously tube stub one side connects by flange with web plate or the mode such as splicing or heat seal is connected with interface, and opposite side, for the termination of socket joint body, is realized connection reliably.The termination of body can be plugged on bell and spigot inner side or all can in outside.
Accompanying drawing explanation
Fig. 1 is the perspective view of linker;
Fig. 2 be tube stub perspective view.
Embodiment
The preferred implementation of tube stub of the present invention is as shown in Figure 1, 2: tube stub comprises the curved linker of a plurality of integral body 10, a plurality of linkers 10 enclose and form closed circle region, on linker 10 along caliber to the web plate 11 that is provided for connecting interface, a side relative with interface arranges the jack panel 12 arranging along pipe side face, and the jack panel 12 on a plurality of linkers 10 encloses the bell and spigot that forms grafting body.Described web plate 11 outer rims arrange flange 13 to jack panel 12 1 sides, between described jack panel 12 and flange 13 along caliber to gusset 14 is set.So further reinforced company's fishplate bar 11 and structural strength whole tube stub, avoid the body weight connecting to cause too greatly tube stub to damage.
Uniform connecting hole 15 on described web plate 11, web plate 11 can utilize bolt or screw to be connected with whole tube stub with the connecting hole of interface and periphery thereof like this, and such syndeton also can be referred to as flange and connect.
The side that described linker 10 is connected with interface arranges a plurality of double wedges 16, coincide with the bore of the tangent circumferential size of double wedge 16 outer rims and interface.Double wedge 16 can be inserted in interface inside like this, its firm degree that reinforced pipe joint is connected with interface on the one hand, be convenient to again on the other hand linker 10 and can in interface, realize easily location when mounted, be convenient to wall of container and grafting body with flange connecting interface side.
Tube stub can be metal material.Also can be other synthetic materials.
But because large-sized like this body and tube stub general size are larger, again usually used as underground works facilities such as cable distribution pipes, so in order to reach reduction manufacturing cost, there is acid-fast alkali-proof simultaneously, etch-proof performance, to adapt to its use occasion, the present invention has also developed the plastic material that applicable tube stub is manufactured specially.
Composite plastic, formula (by weight) comprising:
Plastics: 100 parts, photostabilizer: 0.08-0.13 part, UV light absorber: 0.08-0.12 part, nucleator: 0.05 part, oxidation inhibitor: 0.16-0.25 part; Acceptable enhancing or toughening material: 0.2-0.8 part.
Preferably, described plastics are PP plastics, and enhancing or toughening material comprise glass 988A:0.15-0.22 part.
Or described plastics are PE plastics, enhancing or toughening material comprise SiC whisker: 0.15-0.22 part, maleic anhydride: 0.28-0.33 part, coupling agent KH550:0.16-0.22 part.
Above-mentioned two kinds is the preferred material combination obtaining through overtesting.Two kinds of preferred embodiments are provided below.
Embodiment mono-
Described PP plastics: 100 parts, glass 988A:0.2 part, photostabilizer UV-9:0.1 part, UV light absorber UV531:0.1 part, nucleant agent N AP-53F:0.05 part, antioxidant 1010: 0.2 part.
Embodiment bis-
Described PE plastics: 100 parts, SiC whisker: 0.2 part, maleic anhydride: 0.3 part, coupling agent KH550:0.2 part, irgasfos 168: 0.2 part, photostabilizer UV-9:0.1 part, nucleant agent N AP-53F:0.05 part, UV light absorber UV531:0.1 part.
Such plastics are raw materials used simple and easy to get, with low cost, superior performance, and injection molding is good.Its practicality is even more extensive compared with tube stub itself, can be widely used in making industrial part.Especially be suitable for burying underground the occasion of underground works.Parts are although it is so embedded in and undergroundly itself can be subject to illumination, but find through research, and add after photostabilizer and UV light absorber, the performances such as its intensity significantly improve, and the mechanical property in the time of can guaranteeing as products such as cable shaft, tube stubs is reliable.
The main namely injection molding of linker of tube stub production process: the present invention adopts single injection-molded.
Concrete be exactly: raw material is joined and in container, is heated to gradually 180-220 ℃ and keep at least 30 minutes by hopper, and evenly plasticizing under the stirring intensity of 40-70r/min;
Then under the hydraulic flow that is 50-100L/mim in 50-100Mpa thrust, speed, inject injection moulding in mould; Pressure and the flow velocity of temperature, degree of uniformity and the lodging of plasticizing must strictly be controlled, and just can reach good quality product.
And under 40 ± 1Mpa pressure-acting, pressurize is carried out coolingly, controls the cooling about 300S of time that reaches 50 ℃ of plastics; Then die sinking, finally also slower soon after first slow during die sinking, be namely divided into three sections of die sinkings, speed is respectively: 40L/min, 70L/min, 30L/min; Then slowly firmly equably by work in-process ejection die; Work in-process on inspection, repair deburring, material can be packaged as finished product after handle.Bolt nut, pad and connecting sewing embedding sealing bar with dimension during use assemble into septic tank.Fast after die sinking is first slow is finally the edge that damages plastic plate during for fear of die sinking more slowly.Dwell time and control speed of cooling are in order to guarantee that plastics are evenly distributed in grinding tool, plastic plate performance structure homogeneous, stable.
Tube stub using method of the present invention, take that to be embedded in the occasion that the interface on underground cable shaft is connected with cable distribution pipe be example, installation method is: first excavation is cheated groove, then installing cables well, cable shaft can be the structure that is connected of polylith plate body can be also integral molded plastic processing, then connecting joint is fixed on by double wedge 16 on the interface of cable shaft, then with bolt, web plate 11 and the connecting hole of cable shaft interface is fixed.Again body is plugged on the bell and spigot on tube stub.Backfill earthing again.
The cable shaft and the tube stub that utilize plastics of the present invention to make, on August 5th, 2011, contriver carried out the test of the aspects such as strength property to it, and its mechanical property is made to evaluation to August 31.Situation is as follows:
Test minutes two groups is carried out, and tested cable shaft, tube stub are the plastic warp processing method of the present invention of the screening formulation of embodiment 2 and make, and the tube stub of test group 1 is connected with modular cable well, the tube stub of test group 2 and the cable shaft of integral molded plastic are connected.
Testing tool:
(1) the two-way resistance strain gage of Br120-2AA
(2) YE2539 high speed static strain gage
(3) AZ216R data collecting system
On the cable shaft of test group 1 and tube stub, be uniformly distributed altogether 28 monitoring points, test group 2 is uniformly distributed 18 check points.In test, whether the main intensity of investigating two test group products can meet service requirements, test has mainly gathered the strain value of cable shaft under the different backfill degree of depth, namely the STRESS VARIATION situation of monitoring point in the different situation of the back fill course thickness of cable shaft top.
By actual road conditions, when having vehicle to pass through, the stress-strain situation of test-based examination well, obtains the STRESS VARIATION situation of inspection chamber under moving load.
Particular case is as follows:
(1) each measuring point stress value of buried depth process
The measuring point stress (MPa) of each measuring point of table 1 modular cable well under different buried depth
The measuring point stress (MPa) of each measuring point of table 2 monoblock type cable well under different buried depth
(2) each measuring point stress value of observation process
The measuring point stress (MPa) of each measuring point of table 3 modular cable well when monitoring
Remarks: starting to put each detection time from 26.3h has the truck of load-carrying 20T process.
The measuring point stress (MPa) of each measuring point of table 4 monoblock type cable well when monitoring
Remarks: starting to put each detection time from 26.3h has the truck of load-carrying 20T process.
By above-mentioned testing data, can find out:
(1), in all measuring points of modular cable well, the point that stress is larger mainly occurs in the interface of body and cable shaft, tube stub periphery namely, i.e. the position of measuring point 9,10,11,12, and wherein measuring point 11,12 is positioned on the web plate of tube stub.Along with the increase of the buried depth degree of depth, the stress of this position rises obvious.The stress of other position measuring points is all smaller, in 4MPa left and right.Therefore, the soil matrix below pipeline should be first tamped in suggestion when construction, avoids pipeline unsettled, reduces the impact of load downward on pipeline on pit shaft.
(2) in monoblock type cable well, the stress of all measuring points is all little, mostly in 4MPa left and right.Wherein, the ladle body of comparing of the measuring point stress value on access flap is slightly bigger than normal.
(3) there iing car little through out-of-date STRESS VARIATION.
(4) the aboveground maximum stress load of modular cable reaches 22.523, maximum stress load 23.707 on tube stub.But cable shaft and tube stub, all not by outside destroy, prove that cable shaft of the present invention and pipe joint structure are firm, dependable performance.
Claims (5)
1. plastics, formula comprises by weight:
PP plastics: 100 parts, glass 988A:0.15-0.22 part, photostabilizer UV-9:0.08-0.13 part, UV light absorber UV531:0.08-0.12 part, nucleant agent N AP-53F:0.05 part, antioxidant 1010: 0.16-0.25 part;
Or PE plastics: 100 parts, silicon carbide whisker: 0.15-0.22 part, maleic anhydride: 0.28-0.33 part, coupling agent KH550:0.16-0.22 part, photostabilizer UV-9:0.08-0.13 part, UV light absorber UV531:0.08-0.12 part, nucleant agent N AP-53F:0.05 part, irgasfos 168: 0.16-0.25 part.
2. a kind of plastics according to claim 1, is characterized in that: described PP plastics: 100 parts, glass 988A:0.2 part, photostabilizer UV-9:0.1 part, UV light absorber UV531:0.1 part, nucleant agent N AP-53F:0.05 part, antioxidant 1010: 0.2 part.
3. a kind of plastics according to claim 1, is characterized in that: described PE plastics: 100 parts, silicon carbide whisker: 0.2 part, maleic anhydride: 0.3 part, coupling agent KH550:0.2 part, irgasfos 168: 0.2 part, photostabilizer UV-9:0.1 part, nucleant agent N AP-53F:0.05 part, UV light absorber UV531:0.1 part.
4. utilize the standby tube stub of plastics described in claim 2 or 3, it is characterized in that: described tube stub comprises the linker that a plurality of integral body is curved, a plurality of linkers enclose and form closed circle region, on linker along caliber to the web plate that is provided for connecting interface, a side relative with container arranges the jack panel arranging along pipe side face, and the jack panel on a plurality of linkers encloses the bell and spigot that forms grafting body;
Described web plate outer rim arranges flange to jack panel one side, between described jack panel and flange along caliber to gusset is set; Uniform connecting hole on described web plate;
The side that described linker is connected with interface arranges a plurality of double wedges, coincide with the bore of the tangent circumferential size of double wedge outer rim and interface.
5. the manufacture method of tube stub according to claim 4, is characterized in that: the injection molding step of described linker comprises:
Raw material is heated to 180-220 ℃ gradually and also keeps at least 30 minutes, evenly plasticizing under the stirring intensity of 40-70r/min;
Under the hydraulic flow that is 50-100L/mim in 50-100Mpa thrust, speed, inject injection moulding in mould;
Under 40 ± 1Mpa pressure-acting, pressurize is carried out coolingly, and controlling the cooling time that reaches 50 ℃ of plastics is 300S;
Die sinking, finally also slower soon after first slow during die sinking, speed is respectively: 40L/min, 70L/min, 30L/min;
Then slowly firmly equably by work in-process ejection die; Work in-process on inspection, repair deburring, material handle after and get final product.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210046219.6A CN102585372B (en) | 2012-02-28 | 2012-02-28 | Pipe joint |
| CN201410184330.0A CN103937074B (en) | 2012-02-28 | 2012-02-28 | Novel corrosion resistant tube stub |
| CN201410184685.XA CN103923397B (en) | 2012-02-28 | 2012-02-28 | High-strength corrosion-resisting plastics |
| CN201410183260.7A CN103951890B (en) | 2012-02-28 | 2012-02-28 | Joint for plastic tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210046219.6A CN102585372B (en) | 2012-02-28 | 2012-02-28 | Pipe joint |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410184330.0A Division CN103937074B (en) | 2012-02-28 | 2012-02-28 | Novel corrosion resistant tube stub |
| CN201410183260.7A Division CN103951890B (en) | 2012-02-28 | 2012-02-28 | Joint for plastic tube |
| CN201410184685.XA Division CN103923397B (en) | 2012-02-28 | 2012-02-28 | High-strength corrosion-resisting plastics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102585372A CN102585372A (en) | 2012-07-18 |
| CN102585372B true CN102585372B (en) | 2014-11-05 |
Family
ID=46474652
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410183260.7A Expired - Fee Related CN103951890B (en) | 2012-02-28 | 2012-02-28 | Joint for plastic tube |
| CN201410184330.0A Expired - Fee Related CN103937074B (en) | 2012-02-28 | 2012-02-28 | Novel corrosion resistant tube stub |
| CN201410184685.XA Expired - Fee Related CN103923397B (en) | 2012-02-28 | 2012-02-28 | High-strength corrosion-resisting plastics |
| CN201210046219.6A Expired - Fee Related CN102585372B (en) | 2012-02-28 | 2012-02-28 | Pipe joint |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410183260.7A Expired - Fee Related CN103951890B (en) | 2012-02-28 | 2012-02-28 | Joint for plastic tube |
| CN201410184330.0A Expired - Fee Related CN103937074B (en) | 2012-02-28 | 2012-02-28 | Novel corrosion resistant tube stub |
| CN201410184685.XA Expired - Fee Related CN103923397B (en) | 2012-02-28 | 2012-02-28 | High-strength corrosion-resisting plastics |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN103951890B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951890B (en) * | 2012-02-28 | 2016-05-18 | 昆明普尔顿环保科技股份有限公司 | Joint for plastic tube |
| CN103407055B (en) * | 2013-08-15 | 2015-07-29 | 杭州宏升塑胶有限公司 | A kind of preparation method of large-scale polyethylene tube |
| CN107400276A (en) * | 2017-07-31 | 2017-11-28 | 苏州坤阳机械科技有限公司 | A kind of resistance to chemical attack vinyon for laboratory pipette frame |
| CN110396238A (en) * | 2019-08-07 | 2019-11-01 | 河南天铁环保科技有限公司 | A kind of septic tank PP Pipe Compound and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2667015Y (en) * | 2003-12-07 | 2004-12-29 | 陈忆 | Composite manhole base |
| CN101603002A (en) * | 2009-06-19 | 2009-12-16 | 昆明普尔顿管业有限公司 | Combined biogas pool |
| CN102276915A (en) * | 2011-07-18 | 2011-12-14 | 余姚市中发工程塑料有限公司 | Plastic special for optical fiber junction box and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189509C (en) * | 2001-08-14 | 2005-02-16 | 梁宏祥 | Polymer-based silicon carbide particle reinfored composite material and its production method |
| DE10255043A1 (en) * | 2002-11-26 | 2004-06-03 | Bayer Ag | Use of polycondensate mixtures for the production of molded parts with improved resistance to hydrolysis |
| CN101759933A (en) * | 2009-11-03 | 2010-06-30 | 苏州市科创聚合物有限公司 | Glassfiber reinforced polypropylene material without fiber exposion and manufacturing process thereof |
| CN101735513B (en) * | 2009-12-29 | 2012-01-11 | 青岛国恩科技股份有限公司 | Weather-proof reinforced polypropylene composite material and manufacturing method thereof |
| CN102344604A (en) * | 2010-08-02 | 2012-02-08 | 苏州工业园区鑫丰林塑料科技有限公司 | Glass fiber enhanced polypropylene |
| CN103951890B (en) * | 2012-02-28 | 2016-05-18 | 昆明普尔顿环保科技股份有限公司 | Joint for plastic tube |
-
2012
- 2012-02-28 CN CN201410183260.7A patent/CN103951890B/en not_active Expired - Fee Related
- 2012-02-28 CN CN201410184330.0A patent/CN103937074B/en not_active Expired - Fee Related
- 2012-02-28 CN CN201410184685.XA patent/CN103923397B/en not_active Expired - Fee Related
- 2012-02-28 CN CN201210046219.6A patent/CN102585372B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2667015Y (en) * | 2003-12-07 | 2004-12-29 | 陈忆 | Composite manhole base |
| CN101603002A (en) * | 2009-06-19 | 2009-12-16 | 昆明普尔顿管业有限公司 | Combined biogas pool |
| CN102276915A (en) * | 2011-07-18 | 2011-12-14 | 余姚市中发工程塑料有限公司 | Plastic special for optical fiber junction box and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103951890A (en) | 2014-07-30 |
| CN103923397B (en) | 2016-01-20 |
| CN102585372A (en) | 2012-07-18 |
| CN103923397A (en) | 2014-07-16 |
| CN103937074B (en) | 2016-04-13 |
| CN103951890B (en) | 2016-05-18 |
| CN103937074A (en) | 2014-07-23 |
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