CN109340485A - A kind of high-strength impact-resistant engineering plastics flange and its application - Google Patents
A kind of high-strength impact-resistant engineering plastics flange and its application Download PDFInfo
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- CN109340485A CN109340485A CN201811271949.XA CN201811271949A CN109340485A CN 109340485 A CN109340485 A CN 109340485A CN 201811271949 A CN201811271949 A CN 201811271949A CN 109340485 A CN109340485 A CN 109340485A
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- polyimide
- stainless steel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08J2471/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C08J2471/12—Polyphenylene oxides
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a kind of high-strength impact-resistant engineering plastics flanges, including first flange ontology and second flange ontology, the outermost face of first flange ontology is fixedly installed with curved stainless steel connecting plate, the bottom end of curved stainless steel connecting plate is fixedly installed with elastic buckles, the top end face of curved stainless steel connecting plate is fixed with screw hole seat, stainless steel stud is threaded on screw hole seat, the outermost end of second flange ontology is equipped with screw hole, the lateral surface of second flange ontology is equipped with card slot, and there are four card slot sets altogether, four card slots are corresponding with four elastic buckles；Four elastic buckles are connected in four card slots by the present invention, realize that two flanges detachably link, convenience easy to operate, four rotational handles of rotation rotate four stainless steel studs manually simultaneously, the phenomenon that allowing stainless steel stud threaded one end to be connected in four screw holes of second flange ontology, two flanges avoided to loosen.
Description
Technical field
The present invention relates to flange technical field, specially a kind of high-strength impact-resistant engineering plastics flange and its application.
Background technique
Flange is called flange flange disk or flange.Flange is part interconnected between axis and axis, between pipe end
Connection；Also have with the flange on equipment is imported and exported, for the connection between two equipment, such as speed reducer flange.Flange connects
It connects or bump joint, refers to the releasable connection being connected with each other by flange, gasket and bolt three as one group of combined sealing structure.
Water pump and valve, when connecting with pipeline, corresponding flange shape, also referred to as method is also made in the part of these equipment facilities
Orchid connection.It is all to be bolted while closed union piece in two planar perimeter uses, it is generally referred to as " flange ", such as logical
The connection of air piping, this kind of parts are properly termed as " flange type part ".But this connection is the part of an equipment, such as
The connection of flange and water pump, just it is bad water pump " flange type part ".More small-sized such as valve, can be " flange type
Part.
But more union piece need to be used when traditional flanged joint, disassembly and installation is very inconvenient.
Summary of the invention
The purpose of the present invention is to provide a kind of high-strength impact-resistant engineering plastics flanges, it is intended to need when improving flanged joint
Using more union piece, the very inconvenient problem of disassembly and installation.
The present invention is implemented as follows:
A kind of high-strength impact-resistant engineering plastics flange, including first flange ontology and second flange ontology, first flange ontology
Outermost face be fixedly installed with curved stainless steel connecting plate, the angle of adjacent curved stainless steel connecting plate is 90 degree, it is curved not
The bottom end of rust steel connecting plate is fixedly installed with elastic buckles, and the top end face of curved stainless steel connecting plate is fixed with screw hole seat, spiral shell
Stainless steel stud is threaded in hole seat, the length of stainless steel stud is 2 times that curved stainless steel connects plate thickness, the second method
The outermost end of blue ontology is equipped with screw hole, and there are four screw hole is set altogether, the angle of adjacent screw hole is 90 degree, four screw holes and four it is stainless
Steel stud is corresponding, and the lateral surface of second flange ontology is equipped with card slot, and there are four card slot sets altogether, four card slots and four elasticity
It detains corresponding；
The surface of first flange ontology is coated with polyimide composite film, and polyimide composite film successively includes: from top to bottom
Graphene modified polyimide layer and composite polyimide material on polyimide plastic layer, polyimide plastic layer
Layer；
Wherein, the preparation method of graphene modified polyimide layer, specifically includes the following steps:
(1) graphene oxide is mixed with polyimide monomers, stirs 1-3h at being 130-135 DEG C in temperature；It later will be above-mentioned
Mix monomer is placed in reaction kettle, and organic dicarboxylic acid and ring-opening polymerization catalyst is added, is passed through high pure nitrogen, and be warming up to
230-260 DEG C of stirring post-polymerization 4-6h, obtains oligomer；
(2) in the oligomer and catalyst of step (1), the reaction was continued at 230-260 DEG C 1-3h obtains the modified polyamides of graphene
Imines；
(3) be passed through high pure nitrogen in the reaction kettle in step (2), and 230-260 DEG C by discharge hole for discharge after cooling and dicing,
After drying, successively oil by melting-slow cooling-cooling-- boundling the-the second hot-rolling of the-the first hot-rolling obtains the modified polyamides Asia of graphene
Amine layer；
Polyimide plastic layer is by polyimides ontology, and polyphenylene oxide and polyethylene composition form, wherein by mass percentage
Meter: polyimides ontology: 44%-58%, polyphenylene oxide: 20%-33%, polyethylene: 22%-23%；
The preparation method of polyimide glass fiber composite material, comprising the following steps:
A provides Thermocurable polyimide, low polymerization degree polyimides and reinforcing material；
Low polymerization degree polyimides is dissolved among solution by b, and being prepared into low polymerization degree polyimides mass content is 15-60%
Low polymerization degree polyimide solution；
C infiltrates reinforcing material using low polymerization degree polyimide solution；
D is uniformly mixed the reinforcing material after infiltration to obtain polyimide glass fiber composite material with Thermocurable polyimide.
Further, the side of first flange ontology is fixedly installed with connecting tube, and the outer wall of connecting tube is fixedly installed with
Wear-resistant seal set.
Further, one end of stainless steel stud is fixedly installed with rotational handle, and Anti-slip cover is fixed in rotational handle.
Further, the another side of first flange ontology is provided with circular groove, and corrosion-resistant sealing is fixedly installed in circular groove
Circle, the thickness of corrosion-resistant sealing ring is 2 times of circular groove depth.
Further, the length of curved stainless steel connecting plate is 2 times of first flange body thickness.
Further, the mass ratio of the graphene oxide in step (1) and polyimide monomers is 1:50, organic dicarboxylic acid
It is 1:20 with the mass ratioes of polyimide monomers, the mass ratio of ring-opening polymerization catalyst and polyimide monomers is 1:40；
The mass ratio of catalyst and oligomer is 1:8 in step (2).
Further, catalyst is selected from one or more of antimony class catalyst, germanium series catalysts, Titanium series catalyst.
Further, Thermocurable polyimide is synthesized by tetracarboxylic dianhydride, diamines and end-capping reagent；Thermocurable polyimide
End-capping reagent is PEPA or acetylene anhydride.
Further, the mass fraction of low polymerization degree polyimides is the 0.5%-10% of Thermocurable polyimide；Polyamides
Imines composite membrane, which is characterized in that the dosage of reinforcing material is the 60%-200% of Thermocurable polyimide quality.
Further, reinforcing material is one or more of glass fibre, carbon fiber, basalt fibre, aramid fiber.
Compared with prior art, the beneficial effects of the present invention are: it is of the invention:
(1), curved stainless steel connecting plate is fixedly installed with by the outermost face of first flange ontology, and adjacent angle is 90
Degree, and the bottom end of curved stainless steel connecting plate is fixedly installed with elastic buckles, while the outside of second flange ontology is equipped with four
Four elastic buckles can be connected in four card slots by a card slot, realize that two flanges detachably link, convenience easy to operate, together
Shi Shoudong, which rotates four rotational handles, rotates four stainless steel studs, and stainless steel stud threaded one end is allowed to be connected to second
In four screw holes of flange body, it connect curved stainless steel connecting plate with second flange ontology closer, avoids two flanges
The phenomenon that loosening.
(2), connecting tube being fixed with by the side of first flange ontology, the outer wall of connecting tube is equipped with wear-resistant seal set,
When first flange body is connect with conveyance conduit, connecting tube is against on the inner wall of conveyance conduit, and wear-resistant seal pad makes two connections
It more seals, avoids conveying liquid from overflowing, more secure and reliable.
Polyimide modified composite paster provided by the present invention, because graphene oxide has certain conductive and heat-conductive energy
Power, alcohol quasi polymer have the characteristics that good hygroscopicity, and the introducing of graphene oxide and alcohol quasi-oligomer imparts polyimides material
Expect that good electrical and thermal conductivity performance, antistatic property significantly improve, meanwhile, impact strength, tensile strength greatly improve raising,
Test method: unnotched impact strength test: Xa-500,50J, GB1043 type；Tensile strength test: Lloyd-LR-50K,
GB1040 type, bending strength test: Lloyd-LR-50K, GB9341 type, medium-resistance test: GBn547 type.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is first flange ontology inside structure schematic diagram of the invention；
Fig. 3 is curved stainless steel connecting board structure schematic diagram of the invention.
In figure: 1, first flange ontology；2, curved stainless steel connecting plate；3, screw hole seat；4, elastic buckles；5, connecting tube；6,
Wear-resistant seal set；7, screw hole；8, card slot；9, second flange ontology；10, circular groove；11, corrosion-resistant sealing ring；12, stainless steel spiral shell
Column；13, rotational handle.
Specific embodiment
To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.Based on the embodiment in the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Invent the range of protection.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Referring to Fig.1 shown in -3, a kind of high-strength impact-resistant engineering plastics flange, including first flange ontology 1 and the second method
Blue ontology 9, the outermost face of first flange ontology 1 are fixedly installed with curved stainless steel connecting plate 2, adjacent curved stainless steel connection
The angle of plate 2 is 90 degree, and the bottom end of curved stainless steel connecting plate 2 is fixedly installed with elastic buckles 4, passes through first flange ontology
1 outermost face is fixedly installed with curved stainless steel connecting plate 2, and adjacent angle is 90 degree, and curved stainless steel connecting plate 2
Bottom end is fixedly installed with elastic buckles 4, while the outside of second flange ontology 9 sets that there are four card slots 8, can be by four elastic buckles
4 are connected in four card slots 8, realize that two flanges detachably link, convenience easy to operate, the top of curved stainless steel connecting plate 2
End face is fixed with screw hole seat 3, and stainless steel stud 12 is threaded on screw hole seat 3, and rotating four rotational handles 13 manually makes four
A stainless steel stud 12 is rotated, and 12 threaded one end of stainless steel stud is allowed to be connected to four screw holes 7 of second flange ontology 9
It is interior, the phenomenon that connecting curved stainless steel connecting plate 2 with second flange ontology 9 closer, two flanges is avoided to loosen, no
The length of rust steel stud 12 is 2 times of curved 2 thickness of stainless steel connecting plate, and the outermost end of second flange ontology 9 is equipped with screw hole 7,
There are four screw hole 7 is set altogether, the angle of adjacent screw hole 7 is 90 degree, and four screw holes 7 are corresponding with four stainless steel studs 12, second
The lateral surface of flange body 9 is equipped with card slot 8, and there are four card slot 8 sets altogether, four card slots 8 are corresponding with four elastic buckles 4；
Scheme 1, the surface of first flange ontology are coated with polyimide composite film, and polyimide composite film successively wraps from top to bottom
It includes: graphene modified polyimide layer and composite polyimide material on polyimide plastic layer, polyimide plastic layer
Layer；Wherein, the preparation method of graphene modified polyimide layer, specifically includes the following steps:
(1) graphene oxide is mixed with polyimide monomers, stirs 2h at being 134 DEG C in temperature；Later by above-mentioned mixing list
Body is placed in reaction kettle, and organic dicarboxylic acid and ring-opening polymerization catalyst is added, is passed through high pure nitrogen, and be warming up to 243 DEG C and stir
Post-polymerization 5h is mixed, oligomer is obtained；
(2) in the oligomer and catalyst of step (1), the reaction was continued at 243 DEG C 2h obtains graphene modified polyimide；
(3) be passed through high pure nitrogen in the reaction kettle in step (2), and 243 DEG C by discharge hole for discharge after cooling and dicing, it is dry
Afterwards, successively oil by melting-slow cooling-cooling-- boundling the-the second hot-rolling of the-the first hot-rolling obtains graphene modified polyimide
Layer；
Polyimide plastic layer is by polyimides ontology, and polyphenylene oxide and polyethylene composition form, wherein by mass percentage
Meter: polyimides ontology: 44%, polyphenylene oxide: 33%, polyethylene: 23%；
The preparation method of polyimide glass fiber composite material, comprising the following steps:
A provides Thermocurable polyimide, low polymerization degree polyimides and reinforcing material；
Low polymerization degree polyimides is dissolved among solution by b, be prepared into low polymerization degree polyimides mass content be 43% it is low
Degree of polymerization polyimide solution；
C infiltrates reinforcing material using low polymerization degree polyimide solution；
D is uniformly mixed the reinforcing material after infiltration to obtain polyimide glass fiber composite material with Thermocurable polyimide；
The mass ratio of graphene oxide and polyimide monomers in step (1) is 1:50, organic dicarboxylic acid and polyimides list
The mass ratio of body is 1:20, and the mass ratio of ring-opening polymerization catalyst and polyimide monomers is 1:40；
The mass ratio of catalyst and oligomer is 1:8 in step (2)；
Catalyst is selected from antimony class catalyst, and Thermocurable polyimide is synthesized by tetracarboxylic dianhydride, diamines and end-capping reagent；Thermosetting property is poly-
Imido end-capping reagent is PEPA, and the mass fraction of low polymerization degree polyimides is the 3.6% of Thermocurable polyimide, strengthening material
The dosage of material is the 72% of Thermocurable polyimide quality, and reinforcing material is glass fibre.
The performance test of the present embodiment is as follows: unnotched impact strength test: 168(kj/m2) tensile strength test: 658
(MPa) bending strength is tested: 1109(MPa) kerosene handles tensile strength: 632(MPa).
Scheme 2, the surface of first flange ontology are coated with polyimide composite film, polyimide composite film from top to bottom according to
Secondary includes: that polyimide plastic layer, the graphene modified polyimide layer on polyimide plastic layer and polyimides are compound
Material layer；Wherein, the preparation method of graphene modified polyimide layer, specifically includes the following steps:
(1) graphene oxide is mixed with polyimide monomers, stirs 2h at being 131 DEG C in temperature；Later by above-mentioned mixing list
Body is placed in reaction kettle, and organic dicarboxylic acid and ring-opening polymerization catalyst is added, is passed through high pure nitrogen, and be warming up to 252 DEG C and stir
Post-polymerization 5h is mixed, oligomer is obtained；
(2) in the oligomer and catalyst of step (1), the reaction was continued at 252 DEG C 2h obtains graphene modified polyimide；
(3) be passed through high pure nitrogen in the reaction kettle in step (2), and 252 DEG C by discharge hole for discharge after cooling and dicing, it is dry
Afterwards, successively oil by melting-slow cooling-cooling-- boundling the-the second hot-rolling of the-the first hot-rolling obtains graphene modified polyimide
Layer；
Polyimide plastic layer is by polyimides ontology, and polyphenylene oxide and polyethylene composition form, wherein by mass percentage
Meter: polyimides ontology: 51%, polyphenylene oxide: 27%, polyethylene: 23%；
The preparation method of polyimide glass fiber composite material, comprising the following steps:
A provides Thermocurable polyimide, low polymerization degree polyimides and reinforcing material；
Low polymerization degree polyimides is dissolved among solution by b, be prepared into low polymerization degree polyimides mass content be 27% it is low
Degree of polymerization polyimide solution；
C infiltrates reinforcing material using low polymerization degree polyimide solution；
D is uniformly mixed the reinforcing material after infiltration to obtain polyimide glass fiber composite material with Thermocurable polyimide；
The mass ratio of graphene oxide and polyimide monomers in step (1) is 1:50, organic dicarboxylic acid and polyimides list
The mass ratio of body is 1:20, and the mass ratio of ring-opening polymerization catalyst and polyimide monomers is 1:40；
The mass ratio of catalyst and oligomer is 1:8 in step (2).
Catalyst is selected from Titanium series catalyst, and Thermocurable polyimide is synthesized by tetracarboxylic dianhydride, diamines and end-capping reagent；Thermosetting
Property polyimides end-capping reagent be acetylene anhydride, the mass fraction of low polymerization degree polyimides is Thermocurable polyimide
2.7%, the dosage of reinforcing material is the 127% of Thermocurable polyimide quality, and reinforcing material is carbon fiber and basalt fibre
Mixing.
The performance test of the present embodiment is as follows: unnotched impact strength test: 169(kj/m2) tensile strength test: 656
(MPa) bending strength is tested: 1095(MPa) kerosene handles tensile strength: 631(MPa).
The side of first flange ontology 1 is fixedly installed with connecting tube 5, and the outer wall of connecting tube 5 be fixedly installed with it is wear-resisting close
Big envelope 6 is fixed with connecting tube 5 by the side of first flange ontology 1, and the outer wall of connecting tube 5 is equipped with wear-resistant seal set 6, when
When first flange body 1 is connect with conveyance conduit, connecting tube 5 is against on the inner wall of conveyance conduit, and wear-resistant seal pad 6 makes two connections
It more seals, avoids conveying liquid from overflowing, more secure and reliable.
One end of stainless steel stud 12 is fixedly installed with rotational handle 13, and is fixed with Anti-slip cover in rotational handle 13.
The another side of first flange ontology 1 is provided with circular groove 10, and corrosion-resistant sealing ring 11 is fixedly installed in circular groove 10,
The thickness of corrosion-resistant sealing ring 11 is 2 times of 10 depth of circular groove, corrosion-resistant due to being fixed with corrosion-resistant sealing ring 11 in circular groove 10
Sealing ring 11 connect first flange ontology 1 with second flange ontology 9 more to seal.
The length of curved stainless steel connecting plate 2 is 2 times of 1 thickness of first flange ontology.
Working principle: when using flange, since the side of first flange ontology 1 is fixed with connecting tube 5, connecting tube 5
Outer wall is fixed with wear-resistant seal set 6, and connecting tube 5 is against on conveying pipeline inner wall, seals its connection more, avoids conveying liquid
It overflows, when first flange ontology 1 is connect with second flange ontology 9, the elasticity of four curved 2 bottom ends of stainless steel connecting plate
Button 4 snaps onto four card slots 8 in 9 outside of second flange ontology, keeps two flange dismounting very convenient, then rotation four manually
A rotational handle 13 rotates four stainless steel studs 12, and stainless steel stud 12 is connected in screw hole 7, makes stainless steel stud
12 are tightly connected the stability for guaranteeing two flanged joints in second flange ontology 9, while the inside of first flange ontology 1 is equipped with
Circular groove 10, corrosion-resistant sealing ring 11 is fixed in circular groove 10, and corrosion-resistant sealing ring 11 is against 9 inside of second flange ontology, makes two
A flanged joint is more tight, improves the practicability of flange.
The device obtained by above-mentioned design has been able to satisfy the use of flange dismounting substantially, but in line with further improving its function
The objective of energy, designer have carried out further improvement to the device.
The above is only the preferred embodiment of the present invention, are not intended to restrict the invention, for the technology of this field
For personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of high-strength impact-resistant engineering plastics flange, including first flange ontology (1) and second flange ontology (9), special
Sign is: the outermost face of the first flange ontology (1) is fixedly installed with curved stainless steel connecting plate (2), the adjacent song
The angle of type stainless steel connecting plate (2) is 90 degree, and the bottom end of the curved stainless steel connecting plate (2) is fixedly mounted flexible
It detains (4), the top end face of the curved stainless steel connecting plate (2) is fixed with screw hole seat (3), is threadedly coupled on the screw hole seat (3)
Have stainless steel stud (12), the length of the stainless steel stud (12) is 2 times of curved stainless steel connecting plate (2) thickness, described
The outermost end of second flange ontology (9) is equipped with screw hole (7), there are four the screw hole (7) sets altogether, the folder of the adjacent screw hole (7)
Angle is 90 degree, and four screw holes (7) are corresponding with four stainless steel stud (12), the outside of the second flange ontology (9)
Face is equipped with card slot (8), and there are four card slot (8) sets altogether, four card slots (8) are corresponding with four elastic buckles (4)；Described
The surface of one flange body (1) is coated with polyimide composite film, and the polyimide composite film successively includes: from top to bottom
Graphene modified polyimide layer and composite polyimide material on polyimide plastic layer, polyimide plastic layer
Layer；
Wherein, the preparation method of the graphene modified polyimide layer, specifically includes the following steps:
(1) graphene oxide is mixed with polyimide monomers, stirs 1-3h at being 130-135 DEG C in temperature；It later will be above-mentioned
Mix monomer is placed in reaction kettle, and organic dicarboxylic acid and ring-opening polymerization catalyst is added, is passed through high pure nitrogen, and be warming up to
230-260 DEG C of stirring post-polymerization 4-6h, obtains oligomer；
(2) in the oligomer and catalyst of step (1), the reaction was continued at 230-260 DEG C 1-3h obtains the modified polyamides of graphene
Imines；
(3) be passed through high pure nitrogen in the reaction kettle in step (2), and 230-260 DEG C by discharge hole for discharge after cooling and dicing,
After drying, successively oil by melting-slow cooling-cooling-- boundling the-the second hot-rolling of the-the first hot-rolling obtains the modified polyamides Asia of graphene
Amine layer；
The polyimide plastic layer is by polyimides ontology, and polyphenylene oxide and polyethylene composition form, wherein presses quality percentage
Than meter: polyimides ontology: 44%-58%, polyphenylene oxide: 20%-33%, polyethylene: 22%-23%；
The preparation method of the polyimide glass fiber composite material, comprising the following steps:
A provides Thermocurable polyimide, low polymerization degree polyimides and reinforcing material；
Low polymerization degree polyimides is dissolved among solution by b, and being prepared into low polymerization degree polyimides mass content is 15-60%
Low polymerization degree polyimide solution；
C infiltrates the reinforcing material using low polymerization degree polyimide solution；
D is uniformly mixed the reinforcing material after infiltration to obtain polyimide glass fiber composite material with Thermocurable polyimide.
2. a kind of high-strength impact-resistant engineering plastics flange according to claim 1, which is characterized in that the first flange
The side of ontology (1) is fixedly installed with connecting tube (5), and the outer wall of connecting tube (5) is fixedly installed with wear-resistant seal set (6).
3. a kind of high-strength impact-resistant engineering plastics flange according to claim 1, which is characterized in that the stainless steel spiral shell
One end of column (12) is fixedly installed with rotational handle (13), and is fixed with Anti-slip cover in rotational handle (13).
4. a kind of high-strength impact-resistant engineering plastics flange according to claim 1, which is characterized in that the first flange
The another side of ontology (1) is provided with circular groove (10), and is fixedly installed with corrosion-resistant sealing ring (11), the corrosion resistant in circular groove (10)
The thickness of erosion sealing ring (11) is 2 times of circular groove (10) depth.
5. a kind of high-strength impact-resistant engineering plastics flange according to claim 1, which is characterized in that described curved stainless
The length of steel connecting plate (2) is 2 times of first flange ontology (1) thickness.
6. high-strength impact-resistant engineering plastics flange according to claim 1, which is characterized in that the oxidation in step (1)
The mass ratio of graphene and polyimide monomers is 1:50, and the mass ratio of organic dicarboxylic acid and polyimide monomers is 1:20, is opened
The mass ratio of cyclopolymerization catalyst and polyimide monomers is 1:40；
The mass ratio of catalyst described in step (2) and oligomer is 1:8.
7. high-strength impact-resistant engineering plastics flange according to claim 1, which is characterized in that the catalyst is selected from antimony
One or more of class catalyst, germanium series catalysts, Titanium series catalyst.
8. high-strength impact-resistant engineering plastics flange according to claim 1, which is characterized in that the thermosetting property polyamides is sub-
Amine is synthesized by tetracarboxylic dianhydride, diamines and end-capping reagent；The end-capping reagent of the Thermocurable polyimide is PEPA or acetylene anhydride.
9. high-strength impact-resistant engineering plastics flange according to claim 1, which is characterized in that the low polymerization degree polyamides
The mass fraction of imines is the 0.5%-10% of Thermocurable polyimide；The polyimide composite film, which is characterized in that described
The dosage of reinforcing material is the 60%-200% of Thermocurable polyimide quality.
10. high-strength impact-resistant engineering plastics flange according to claim 5, which is characterized in that the reinforcing material is
One or more of glass fibre, carbon fiber, basalt fibre, aramid fiber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811271949.XA CN109340485B (en) | 2018-10-29 | 2018-10-29 | High-strength impact-resistant engineering plastic flange and application thereof |
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| CN109340485B CN109340485B (en) | 2021-05-18 |
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| CN203442387U (en) * | 2013-08-17 | 2014-02-19 | 云南锡业机械制造有限责任公司 | Flange fast-connection device |
| CN104403313A (en) * | 2014-11-18 | 2015-03-11 | 上海聿衡新材料科技有限公司 | Polyimide composite material and preparation method thereof |
| CN107385545A (en) * | 2017-06-26 | 2017-11-24 | 杭州师范大学 | Preparation method and the application of copolyesteramide and its fiber that a kind of graphene oxide is modified |
| CN206904430U (en) * | 2017-06-14 | 2018-01-19 | 天津欧陆宝新材料科技有限公司 | A kind of easy-to-mount assembling pipe joint |
| CN207364513U (en) * | 2017-09-27 | 2018-05-15 | 安徽鼎隆重工科技有限公司 | A kind of used in fire-fighting tube connection device |
| CN207814727U (en) * | 2017-12-06 | 2018-09-04 | 浙江大众隔热科技有限公司 | A kind of elbow cold insulation structure with self-locking effect |
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2018
- 2018-10-29 CN CN201811271949.XA patent/CN109340485B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203442387U (en) * | 2013-08-17 | 2014-02-19 | 云南锡业机械制造有限责任公司 | Flange fast-connection device |
| CN104403313A (en) * | 2014-11-18 | 2015-03-11 | 上海聿衡新材料科技有限公司 | Polyimide composite material and preparation method thereof |
| CN206904430U (en) * | 2017-06-14 | 2018-01-19 | 天津欧陆宝新材料科技有限公司 | A kind of easy-to-mount assembling pipe joint |
| CN107385545A (en) * | 2017-06-26 | 2017-11-24 | 杭州师范大学 | Preparation method and the application of copolyesteramide and its fiber that a kind of graphene oxide is modified |
| CN207364513U (en) * | 2017-09-27 | 2018-05-15 | 安徽鼎隆重工科技有限公司 | A kind of used in fire-fighting tube connection device |
| CN207814727U (en) * | 2017-12-06 | 2018-09-04 | 浙江大众隔热科技有限公司 | A kind of elbow cold insulation structure with self-locking effect |
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