CN213648758U - Fiber reinforced composite material pressurization curing forming device - Google Patents
Fiber reinforced composite material pressurization curing forming device Download PDFInfo
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- CN213648758U CN213648758U CN202022484139.1U CN202022484139U CN213648758U CN 213648758 U CN213648758 U CN 213648758U CN 202022484139 U CN202022484139 U CN 202022484139U CN 213648758 U CN213648758 U CN 213648758U
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Abstract
The utility model discloses a fiber reinforced composite material pressure curing molding device, which comprises a stirring tank, a glue pressing tank and an autoclave; the stirring tank is provided with a stirring device, a first vacuumizing interface and a glue inlet; the glue inlet is used for adding novolac epoxy resin, alicyclic epoxy resin, a curing agent, a toughening agent and a filler; the glue pressing tank is provided with a pressurizing port and a second vacuumizing interface; the autoclave is provided with a pressure pipe interface and a third vacuumizing interface, and an inner die is arranged inside the autoclave; the inner mould is used for placing the fiber reinforced material, the outer sealing material layers are arranged outside the inner mould and the fiber reinforced material to form a sealing body, and the inner end of the third vacuumizing interface is communicated with the sealing body; the bottom of the stirring tank is communicated with the glue pressing tank through a first glue inlet pipe; the bottom of the glue pressing tank is communicated with an inner die inside the autoclave through a second glue inlet pipe. The device can discharge the rubber material and bubbles generated in the reaction process by the pressure curing molding process, and the product is more compact and has better damp and heat resistance effect by heating and pressure curing.
Description
Technical Field
The utility model relates to a combined material preparation facilities. In particular to a fiber reinforced composite material pressurizing, curing and forming device used for a downhole logging instrument.
Background
The well logging instrument is a common device for petroleum exploration and development at present, the used composite insulating material is a key for ensuring the insulation between measuring electrodes, the performance of the composite insulating material is very important for the measuring result, certain strength is required besides the insulation of the composite material, the epoxy resin adhesive is generally reinforced by fibers to manufacture the composite material, at present, under the environment of 175 plus 200 ℃, the fiber reinforced composite material manufactured by the prior technical scheme can basically meet the use requirement, along with the rapid development of well logging complete equipment towards the directions of high reliability, integration, arraying, imaging and deep detection, particularly along with the continuous increase of deep wells, ultra-deep wells, large-displacement inclined wells and horizontal wells, the underground temperature and pressure are also continuously improved, and the underground working condition is complex. The demand for fiber reinforced composites is also increasing, both for high temperature resistance and with accompanying oil, corrosive gases, water vapor pressure. The existing material is used at 235 ℃ or above and in a high-humidity environment, the conditions of whitish color, softness, rubber material loss and the like often occur, and the use requirement cannot be met.
In order to realize the preparation of the high-temperature high-humidity hot-fiber reinforced composite material, the prior forming device can not meet the requirement of continuous production, and particularly, a set of complete production equipment is not provided for bubbles generated in resin.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fibre reinforced composite material pressurization solidification forming device, this forming device can satisfy the preparation of high temperature resistant high humid tropical fibre reinforced composite material, and the bubble that produces in sizing material and the reaction sequence of can discharging, heats the pressurization solidification, and the product is more compact, and wet-heat resistant effect is better
The technical scheme of the utility model is that:
a fiber reinforced composite material pressure curing molding device comprises a stirring tank, a glue pressing tank and an autoclave;
the stirring tank is provided with a stirring device, a first vacuumizing interface and a glue inlet; the glue inlet is used for adding novolac epoxy resin, alicyclic epoxy resin, a curing agent, a toughening agent and a filler;
the glue pressing tank is provided with a pressurizing port and a second vacuumizing interface;
the autoclave is provided with a pressure pipe interface and a third vacuumizing interface, and an inner die is arranged inside the autoclave; the inner mould is used for placing the fiber reinforced material, the outer sealing material layers are arranged outside the inner mould and the fiber reinforced material to form a sealing body, and the inner end of the third vacuumizing interface is communicated with the sealing body;
the bottom of the stirring tank is communicated with the glue pressing tank through a first glue inlet pipe; and the bottom of the glue pressing tank is communicated with the inner die in the autoclave through a second glue inlet pipe.
Optionally, the outer sealing material layer includes a release fabric, an air-permeable felt, a sealing rubber strip and a coating film, which are sequentially arranged.
Optionally, the coating film is made of a high-temperature-resistant silicon rubber material.
Optionally, the stirring tank, the glue pressing tank and the autoclave are all provided with heating units.
Optionally, the inner wall of the autoclave is provided with a heating pipe.
Optionally, valves are arranged on the first rubber inlet pipe and the second rubber inlet pipe.
Optionally, the autoclave has an openable lid.
Compared with the prior art, the utility model following technological effect has:
the utility model discloses select the better autoclave forming process of effect for use, the bubble that produces in sizing material and the reaction sequence of can discharging heats the pressurization solidification, and the product is more compact, and the damp-heat resistant effect is better. Can meet the requirement of continuous production.
Drawings
FIG. 1 is a press curing device for fiber reinforced composite material of the present invention;
FIG. 2 is a flow chart of the manufacturing process.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
For example, the high temperature and high humidity heat resistant fiber reinforced composite material to be prepared is prepared by impregnating glass fiber reinforced material with epoxy resin mixed glue prepared from novolac epoxy resin, alicyclic epoxy resin, curing agent, toughening agent and filler.
The curing agent is a modified aromatic amine curing agent. The reinforcing material is high-strength alkali-free glass fiber cloth. The filler is fumed silica. The resin is a mixture of o-cresol formaldehyde epoxy resin and alicyclic epoxy resin.
The molding process is a heating, vacuumizing, pressurizing and curing molding process of an autoclave. The method specifically comprises the following steps:
heating and mixing novolac epoxy resin and alicyclic epoxy resin, then adding a curing agent, a toughening agent and a filler, uniformly stirring and vacuumizing to obtain a mixed rubber material;
and then injecting the mixed sizing material into a mold for laying the reinforcing material, pressurizing, curing and molding to obtain the high-temperature-resistant high-humidity-resistant hot-fiber reinforced composite material.
In order to prepare the composite material, the utility model provides a fiber reinforced composite material pressure curing molding device, as shown in figure 1, comprising a stirring tank 1, a glue pressing tank 2 and an autoclave 3;
the stirring tank 1 is provided with a stirring device 14, a first vacuumizing interface 15 and a glue inlet 16; the glue inlet 16 is used for adding novolac epoxy resin, alicyclic epoxy resin, a curing agent, a toughening agent and a filler;
the glue pressing tank 2 is provided with a pressurizing port 10 and a second vacuumizing interface 12;
the autoclave 3 is provided with a pressure pipe interface 5 and a third vacuumizing interface 6, an inner mold 4 is arranged in the autoclave 3, and the inner end of the third vacuumizing interface 6 is communicated with the inner mold 4; the inner die 4 is used for placing glass fiber cloth;
the bottom of the stirring tank 1 is communicated with the glue pressing tank 2 through a first glue inlet pipe 13; the bottom of the autoclave 2 is communicated with the inner die 4 in the autoclave 3 through a second rubber inlet pipe 11.
The inner mould 4 is used for placing a fiber reinforced material 9, an outer sealing material layer 8 is arranged outside the inner mould 4 and the fiber reinforced material 9 to form a sealing body, and the inner end of the third vacuumizing interface 6 is communicated with the sealing body; the stirring tank 1, the glue pressing tank 2 and the autoclave 3 are all provided with heating units. And a heating pipe 7 is arranged on the inner wall of the autoclave 3. The first rubber inlet pipe 13 and the second rubber inlet pipe 11 are provided with valves. The autoclave 3 has an openable lid.
Examples
When the device is used in combination with the device shown in fig. 1 and 2, the device comprises the following steps:
heating novolac epoxy resin and alicyclic epoxy resin, adding into the stirring tank 1 from the glue inlet 16, heating, stirring, vacuumizing, adding the modified aromatic amine curing agent, adding the toughening agent and the filler, stirring, vacuumizing, and standing for later use.
Heating and vacuumizing the glue pressing tank 2, discharging the vacuum of the stirring tank 1, opening a valve of the first glue inlet pipe 13, pumping the glue material from the stirring tank 1 to the glue pressing tank 2, vacuumizing and standing for later use.
Heating and dehumidifying the glass fiber cloth, treating the surface of the inner die 4, laying the glass fiber cloth on the inner die 4 to the required thickness, coating and sealing the outside by an outer sealing material layer 8 formed by demoulding cloth, a breathable felt, a sealing rubber strip, a coating film and the like, vacuumizing to check the sealing property, and finishing the manufacturing of a product blank.
The sealed product blank is placed into an autoclave 3, a second rubber inlet pipe 11, a third vacuumizing interface 6 and a pressure pipe interface 5 are connected, a temperature measuring probe is placed, a cover plate is closed, the product blank is heated and vacuumized, a valve of the second rubber inlet pipe 11 is opened after the vacuum degree and the temperature reach required parameters, glue injection is started for the blank, the vacuum degree in the glue pressing tank 2 is properly adjusted according to the glue flow rate, the glue pressing tank 2 can be inflated from a pressurizing port 10 after no vacuum exists in the glue pressing tank 2 to continue assisting the glue injection speed until the glue is filled into the whole product blank, and the flow rate and the glue injection time of the glue are controlled in the whole process.
After the glue material is injected, vacuumizing is stopped, the valve is closed, the glue pressing tank 2 is continuously pressurized through the pressurizing connector 10, the autoclave 3 is inflated and pressurized through the pressurizing connector 5, the stepped heating is started, the heating is stopped, and the temperature is slowly reduced along with the tank.
And (5) discharging the pressure when the temperature is up to 50 ℃, opening the can, removing the die and finishing the manufacture of the product.
The novolac epoxy resin is o-cresol formaldehyde epoxy resin CNE202, the alicyclic epoxy resin is 2021P, the curing agent is modified aromatic amine 5219B customized by Shanghai Wallace, the toughening agent is MX-267, and the filler is fumed silica.
Further phenolic resin: alicyclic resin: modified aromatic amine curing agent: a toughening agent: the mass ratio of the filler is 15: 50: 27: 3: 5
Further heating phenolic epoxy resin and alicyclic epoxy resin to 50 ℃, adding the mixture into a stirring tank 1 from a glue inlet 16, heating to 95 ℃, stirring, vacuumizing to 200 Pa, adding a modified aromatic amine curing agent, adding a toughening agent and a filler, stirring, vacuumizing to 10 Pa, and standing for later use.
The glass fiber cloth is further heated to 105 ℃ for dehumidification, the surface of the inner die 4 is coated with W19 release agent for treatment, and the coating film is made of high-temperature-resistant silicon rubber material with the thickness of 0.8 mm.
Further heating the glue pressing tank 2 to 65 ℃, vacuumizing to 30 Pa, discharging the vacuum of the stirring tank 1, opening a valve of the first glue inlet pipe 13, pumping the glue material from the stirring tank 1 to the glue pressing tank 2, vacuumizing to 10 Pa, and standing for later use.
And further placing the sealed product blank into an autoclave 3, heating the product blank, vacuumizing, keeping the vacuum degree to 5 Pa, keeping the temperature to 85 ℃ and keeping the temperature constant for 2 hours, opening a valve of a second rubber inlet pipe 11, and injecting rubber into the blank, wherein the rubber injection time is controlled to be 3 hours/meter according to the length of the product.
After the rubber material is further injected, the vacuumizing is stopped, the valve is closed, the rubber pressing tank 2 is continuously filled with nitrogen to be pressurized to 1.2 MPa, the hot pressing tank 3 is filled with nitrogen to be pressurized to 1.2 MPa,
the further step heating process is 80-2 hours, 100-3 hours, 120-3 hours, 140-2 hours, 160-2 hours, 180-2 hours and 200-2 hours.
All articles and references disclosed above, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional.
A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of the subject matter that is disclosed herein is not intended to forego such subject matter, nor should the applicants be construed as having contemplated such subject matter as being part of the disclosed subject matter.
Claims (7)
1. A fiber reinforced composite material pressurization curing molding device is characterized by comprising a stirring tank, a glue pressing tank and an autoclave;
the stirring tank is provided with a stirring device, a first vacuumizing interface and a glue inlet; the glue inlet is used for adding novolac epoxy resin, alicyclic epoxy resin, a curing agent, a toughening agent and a filler;
the glue pressing tank is provided with a pressurizing port and a second vacuumizing interface;
the autoclave is provided with a pressure pipe interface and a third vacuumizing interface, and an inner die is arranged inside the autoclave; the inner mould is used for placing the fiber reinforced material, the outer sealing material layers are arranged outside the inner mould and the fiber reinforced material to form a sealing body, and the inner end of the third vacuumizing interface is communicated with the sealing body;
the bottom of the stirring tank is communicated with the glue pressing tank through a first glue inlet pipe; and the bottom of the glue pressing tank is communicated with the inner die in the autoclave through a second glue inlet pipe.
2. The apparatus of claim 1, wherein the outer sealing material layer comprises a release cloth, an air-permeable felt, a sealing rubber strip and a coating film, which are sequentially disposed.
3. The apparatus as claimed in claim 2, wherein the coating film is made of high temperature resistant silicone rubber.
4. The apparatus of claim 1, wherein the stirring tank, the pressing tank and the autoclave are provided with heating units.
5. The apparatus of claim 1, wherein the autoclave has a heating pipe disposed on an inner wall thereof.
6. The apparatus as claimed in claim 1, wherein the first and second pipes are provided with valves.
7. The apparatus according to claim 1, wherein the autoclave has an openable cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022484139.1U CN213648758U (en) | 2020-10-29 | 2020-10-29 | Fiber reinforced composite material pressurization curing forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022484139.1U CN213648758U (en) | 2020-10-29 | 2020-10-29 | Fiber reinforced composite material pressurization curing forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213648758U true CN213648758U (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022484139.1U Active CN213648758U (en) | 2020-10-29 | 2020-10-29 | Fiber reinforced composite material pressurization curing forming device |
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| CN (1) | CN213648758U (en) |
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- 2020-10-29 CN CN202022484139.1U patent/CN213648758U/en active Active
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