CN113418560B - Equipment and method for rapidly formulating molding process parameters of resin-based composite material - Google Patents
Equipment and method for rapidly formulating molding process parameters of resin-based composite material Download PDFInfo
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- CN113418560B CN113418560B CN202110727987.7A CN202110727987A CN113418560B CN 113418560 B CN113418560 B CN 113418560B CN 202110727987 A CN202110727987 A CN 202110727987A CN 113418560 B CN113418560 B CN 113418560B
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Abstract
The invention discloses equipment and a method for rapidly formulating molding process parameters of a resin-based composite material, wherein the equipment comprises an integrated combined box body, a display and control console, a modularized test unit device and an integrated control system, wherein: the display and control console and the integrated control system are embedded and arranged on one side of the integrated combined box body; the modularized test unit device is positioned in the integrated combined box body. The invention can obtain the optimal molding process parameters by carrying out one-time test iterative screening on different parameter variables, abandons the traditional mode of determining the rest invariants by controlling single invariant screening, greatly reduces the test times and period, saves the cost, improves the parameter optimization efficiency, simultaneously realizes real-time data acquisition under the common influence of different parameters for the first time, and overcomes the defect of large deviation of the process parameters screened by the traditional mode.
Description
Technical Field
The invention relates to equipment and a method for rapidly formulating molding process parameters of a resin-based composite material, in particular to modular integrated equipment and a method which can be used for obtaining optimal molding process parameters by carrying out one-time test iteration rapid screening on different parameter variables.
Background
With the continuous popularization of the application of resin-based composite materials in the aerospace and civil fields, the requirements of the resin-based composite materials corresponding to different use environments and different use functions are more and more extensive, a large quantity of resin-based composite materials with different varieties and functions are developed, whether laboratory material research and development or market-oriented engineering is adopted, the formulation of reasonable resin-based composite material forming process parameters becomes an essential important link, and generally common process parameters comprise target temperature, temperature rise and fall rate, heat preservation temperature, curing temperature, pressurization temperature, pressure, vacuum degree and the like.
The traditional way of formulating the molding process parameters of resin-based composite materials is to control one parameter as an invariant, the method comprises the steps of screening other parameter variables, then completing formulation of all parameters one by one, wherein the adopted equipment is traditional hot press and autoclave equipment, only one parameter can be screened once due to equipment limitation, the equipment power is high, the time consumption is long, the cost is high, the workload and the cycle cost required for screening all parameters are high, particularly, resin-based composite materials containing polycondensation reaction (such as polyimide resin-based composite materials, phenolic aldehyde and organic silicon resin-based composite materials and the like) are screened, the workload of screening process parameters is larger than that of conventional resin-based composite materials only containing addition reaction, and the more prominent problem is that the traditional mode cannot reflect centralized performance of different process parameters in the same test process, and the formulated molding process parameters have certain deviation.
In recent years, aiming at the development requirement of resin matrix composite material for quick response, the research and development efficiency and the compression cost of the resin matrix composite material are improved, the competitiveness is enhanced, and equipment for quickly establishing molding process parameters of the resin matrix composite material with function integration is urgently needed. The investigation finds that the existing equipment for rapidly establishing the molding process parameters of the resin matrix composite material is blank, has no application case, and has good application prospect in the field of molding of the resin matrix composite material.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides equipment and a method for rapidly establishing the molding process parameters of a resin-based composite material. The invention can obtain the optimal molding process parameters by carrying out one-time test iterative screening on different parameter variables, abandons the traditional mode of determining the rest invariants by controlling single invariant screening, greatly reduces the test times and period, saves the cost, improves the parameter optimization efficiency, simultaneously realizes real-time data acquisition under the common influence of different parameters for the first time, and overcomes the defect of large deviation of the process parameters screened by the traditional mode.
The purpose of the invention is realized by the following technical scheme:
the utility model provides an equipment of fast formulation resin matrix combined material shaping process parameter, includes integrative combination formula box, display and control platform, modular test unit device and integrated control system, wherein:
the display and control console and the integrated control system are embedded and arranged on one side of the integrated combined box body;
the modularized test unit device is positioned in the integrated combined box body;
the modularized test unit device consists of a hoisting type high-precision weighing sensing device, a vacuum tank body, a pressurizing device, a heating device, a vacuum pipeline, an ultrasonic gas flowmeter, a U-shaped pipe and a cooling device;
the whole test unit device is suspended and installed on the integrated combined box body by the hoisting type high-precision weighing sensing device;
the pressurizing device, the heating device and the vacuum pipeline are all arranged in the vacuum tank body;
the ultrasonic gas flowmeter is arranged on the vacuum pipeline;
the vacuum pipeline is connected with the U-shaped pipe;
the U-shaped pipe is arranged in the cooling device;
the integrated control system consists of a vacuum control system, a pressure control system, a heating control system, a gas flow monitoring system, a weight monitoring system and a data analysis system;
the vacuum control system is connected with the vacuum tank body and the vacuum pipeline;
the pressure control system is connected with the pressurizing device;
the gas flow monitoring system is connected with the ultrasonic gas flowmeter;
the weight monitoring system is connected with the hoisting type high-precision weighing sensing device;
the data analysis system is connected with the vacuum control system, the pressure control system, the heating control system, the gas flow monitoring system and the weight monitoring system.
A method for rapidly formulating molding process parameters of a resin-based composite material by using the equipment comprises the following steps:
firstly, determining technological parameters and the corresponding quantity N of resin-based composite materials to be screened;
secondly, installing N groups of corresponding test unit devices in the integrated combined type box body according to the determined number N of the composite material process parameters;
thirdly, placing the pre-cured resin-based composite material for the test into a test unit device;
fourthly, starting up the device to test the device to run, and checking whether each device works normally or not;
fifthly, editing and inputting real-time curves of technological parameters such as vacuum degree, temperature rise and fall rate, pressure and the like set by the screening test on a display control console, uploading instructions to the integrated control system, and checking whether the integrated control system is normal;
sixthly, starting operation, and monitoring the weight change of the test object, the generated gas flow change and the volume change of the cooling collection liquid in the reaction process in real time;
seventhly, after the test is finished, carrying out real-time data acquisition and analysis on the technological parameters of the whole process, and screening out the most reasonable molding technological parameters;
eighthly, performing mechanical property test and porosity test on the composite material test plate corresponding to the screened reasonable process parameters, and reflecting whether the screened process parameters are correct and reasonable according to the test result;
and ninthly, adopting screening to formulate reasonable process parameters to perform batch molding preparation on the typical sample of the composite material, and verifying the internal quality of the typical sample of the composite material again through ultrasonic nondestructive testing to prove that the screened molding process parameters have engineering applicability.
Compared with the prior art, the invention has the following advantages:
(1) the equipment for rapidly formulating the molding process parameters of the resin-based composite material can obtain the optimal molding process parameters by carrying out one-time test iterative screening on different parameter variables, abandons the traditional mode of controlling single invariant screening to determine the rest invariant, greatly reduces the test times and period, saves the cost, improves the parameter optimization efficiency, simultaneously realizes real-time data acquisition under the common influence of different parameters for the first time, and overcomes the defect of large parameter deviation of the traditional screening process.
(2) The equipment for rapidly formulating the molding process parameters of the resin-based composite material can present the weight change of materials in each reaction process and real-time data of gas and liquid reaction products, visually reflect the intensity of chemical reaction and the curing completion degree under different process parameters, and play a role in perfectly correcting the screened process parameters, while the traditional process parameter screening method is judged by test results and cannot present the actual representation of different process parameters in each test process.
(3) The equipment for rapidly formulating the molding process parameters of the resin-based composite material is in modular integrated combined design, is simple and convenient to disassemble and install, and prepares the test unit devices according to the quantity of the screening process parameters; the integrated control system consists of a vacuum control system, a pressure control system, a heating control system, a gas flow monitoring system, a weight monitoring system and a data analysis system, wherein the data analysis system is used as an information data processing center to perform data calculation and analysis on different process parameters, establish correlation factors and envelope coefficients of the different process parameters and improve the accuracy of the screening and formulating of the molding process parameters.
Drawings
FIG. 1 is a schematic view of an apparatus for rapidly setting molding process parameters of a resin-based composite material.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings, but not limited thereto, and any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention shall be covered by the protection scope of the present invention.
The invention provides equipment for rapidly formulating molding process parameters of resin-based composite materials, which comprises an integrated combined box body 1, a box body support 17, a display and control console 16, a modularized test unit device and an integrated control system, wherein the integrated control system comprises:
the box body support 17 is positioned at the bottom of the integrated combined box body 1 and plays a role in stably supporting the whole box body;
the display and control console 16 and the integrated control system are embedded and arranged on one side of the integrated combined box body 1, and a control area and a working area of the equipment are isolated in a partitioning manner;
the display and control console 16 is a computer display terminal, and the display and control console 16 is used for carrying out instruction operation, process monitoring and result presentation on the integrated control system of the equipment;
the modular test unit device is located inside the integrated combined box body 1.
In the invention, the modularized test unit device consists of a hoisting type high-precision weighing sensing device 2, a vacuum tank body 3, a pressurizing device 4, a heating device 5, a vacuum pipeline 6, an ultrasonic gas flowmeter 7, a U-shaped pipe 8 and a cooling device 9, can be increased or reduced according to the number of technological parameters to be screened, and is convenient for flexible operation, wherein:
the whole test unit device is suspended and installed on the integrated combined box body 1 by the hoisting type high-precision weighing sensing device 2;
the pressurizing device 4, the heating device 5 and the vacuum pipeline 6 are all arranged in the vacuum tank body 3;
the ultrasonic gas flowmeter 7 is arranged on the vacuum pipeline 6;
the vacuum pipeline 6 is connected with a U-shaped pipe 8;
the U-tube 8 is built into the cooling device 9.
In the present invention, the integrated control system is composed of a vacuum control system 10, a pressure control system 11, a heating control system 12, a gas flow monitoring system 13, a weight monitoring system 14 and a data analysis system 15, the vacuum control system 10, the pressure control system 11 and the heating control system 12 are in an intelligent control mode, and the three can work independently, or any two of them can work simultaneously, or the three can work simultaneously, wherein:
the vacuum control system 10 is connected with the vacuum tank 3 and the vacuum pipeline 6 and is used for adjusting and controlling the vacuum degree in the vacuum tank 3 in real time;
the pressure control system 11 is connected with the pressurizing device 4 and is used for pressurizing the pre-cured resin-based composite material 18 for the test;
the gas flow monitoring system 13 is connected with the ultrasonic gas flowmeter 7 and is used for detecting the change of the passing gas flow;
the weight monitoring system 14 is connected with the hoisting type high-precision weighing sensing device 2 and is used for monitoring the weight change of the tested object in the reaction process in real time;
the data analysis system 15 is a comprehensive data information integration operation processing software, is connected with the vacuum control system 10, the pressure control system 11, the heating control system 12, the gas flow monitoring system 13 and the weight monitoring system 14, and is used for comprehensively processing and analyzing data generated by the vacuum control system 10, the pressure control system 11, the heating control system 12, the gas flow monitoring system 13 and the weight monitoring system 14.
In the invention, the heating device 5 and the pressurizing device 4 are integrally designed and manufactured, the heating device 5 is installed in the pressurizing device 4, the heating mode of the heating device 5 is electric heating or electromagnetic induction heating, and the pressurizing mode of the pressurizing device 4 is hydraulic pressurizing or air bag pressurizing.
In the present invention, the minimum pick-up flow of the ultrasonic gas flowmeter 7 is 0.06m3And/h, the gas backflow prevention device is designed in a one-way gas flow mode and has the function of preventing gas backflow.
In the invention, the inner wall of the U-shaped pipe 8 is subjected to hydrophobic surface treatment and is provided with scale marks.
In the present invention, the cooling device 9 may be cooled by circulating water or liquid nitrogen.
In the present invention, the maximum heating temperature of the heating device 5 is 450 ℃.
In the present invention, the maximum pressing load of the pressing device 4 is 3.5 MPa.
The principle of the above-mentioned device is as follows:
the technological parameters of different resin-based composite materials are integrally controlled by vacuum, heating and pressurizing devices to carry out curing crosslinking reaction, the weight change of a test article, the change of generated gas flow and the volume change of cooling and collecting liquid in the reaction process are monitored in real time to macroscopically check different technological parameters, and a data analysis system is adopted to realize one-time test high-throughput iterative screening comparison to obtain reasonable forming technological parameters.
Example (b):
in the embodiment, the equipment for rapidly establishing the molding process parameters of the resin-based composite material is adopted to establish the molding process parameters of the high-temperature-resistant polyimide resin-based composite material, and the method comprises the following specific steps:
the first step is as follows: determining the technological parameters of the resin-based composite material to be screened of the polyimide resin-based composite material: the target temperature, the temperature rise and fall rate, the heat preservation temperature, the curing temperature, the pressurization temperature, the pressure and the vacuum degree are 7 in number;
the second step: installing 7 groups of corresponding test unit devices in the integrated combined type box body according to the determined 7 process parameters of the polyimide resin matrix composite material;
the third step: placing the pre-cured polyimide resin matrix composite material for the test into a vacuum tank body 3;
the fourth step: starting up the machine for test run, and checking whether the hoisting type high-precision weighing sensing device 2, the vacuum tank body 3, the pressurizing device 4, the heating device 5, the vacuum pipeline 6, the ultrasonic gas flowmeter 7, the U-shaped pipe 8 and the cooling device 9 work normally or not;
the fifth step: editing and inputting real-time curves of technological parameters of target temperature, temperature rise and fall rate, heat preservation temperature, curing temperature, pressurization temperature, pressure and vacuum degree set by a screening test on a display control console 16, uploading instructions to an integrated control system, and checking whether a vacuum control system 10, a pressure control system 11, a heating control system 12, a gas flow monitoring system 13, a weight monitoring system 14 and a data analysis system 15 are normal or not;
and a sixth step: starting to operate, checking the gas flow change displayed by the gas flow monitoring system 13, the weight change displayed by the weight monitoring system 14 and the volume of the liquid collected by the U-shaped pipe 8;
the seventh step: after the test is finished, carrying out real-time data acquisition and analysis on the technological parameters in the whole process, and screening out the most reasonable molding technological parameters of the polyimide resin matrix composite material;
eighth step: carrying out mechanical property test and porosity test on the polyimide resin matrix composite material test plate corresponding to the screened reasonable process parameters, and reflecting whether the screened process parameters are correct and reasonable according to the test result;
the ninth step: and reasonable process parameters are screened and formulated for batch forming preparation of the typical sample of the polyimide resin matrix composite material, and the internal quality of the typical sample of the composite material is rechecked through ultrasonic nondestructive testing, so that the screened and formulated forming process parameters are proved to have engineering applicability.
The method can solve the problems of long time, low efficiency, high cost and deviation of the traditional polyimide resin matrix composite material process parameter screening.
Claims (9)
1. The utility model provides an equipment of fast formulation resin matrix combined material shaping process parameter which characterized in that equipment includes integrative combination formula box, display and control platform, modular test unit device and integrated control system, wherein:
the display and control console and the integrated control system are embedded and arranged on one side of the integrated combined box body;
the modularized test unit device is positioned in the integrated combined box body;
the modularized test unit device consists of a hoisting type high-precision weighing sensing device, a vacuum tank body, a pressurizing device, a heating device, a vacuum pipeline, an ultrasonic gas flowmeter, a U-shaped pipe and a cooling device;
the whole test unit device is suspended and installed on the integrated combined box body by the hoisting type high-precision weighing sensing device;
the pressurizing device, the heating device and the vacuum pipeline are all arranged in the vacuum tank body;
the ultrasonic gas flowmeter is arranged on the vacuum pipeline;
the vacuum pipeline is connected with the U-shaped pipe;
the U-shaped pipe is arranged in the cooling device;
the integrated control system consists of a vacuum control system, a pressure control system, a heating control system, a gas flow monitoring system, a weight monitoring system and a data analysis system;
the vacuum control system is connected with the vacuum tank body and the vacuum pipeline;
the pressure control system is connected with the pressurizing device;
the gas flow monitoring system is connected with the ultrasonic gas flowmeter;
the weight monitoring system is connected with the hoisting type high-precision weighing sensing device;
the data analysis system is connected with the vacuum control system, the pressure control system, the heating control system, the gas flow monitoring system and the weight monitoring system;
the process parameters of different resin-based composite materials are integrally controlled by a vacuum device, a heating device and a pressurizing device to carry out curing and crosslinking reaction, the weight change of a test object, the generated gas flow change and the volume change of cooling and collecting liquid in the reaction process are monitored in real time to carry out macroscopic check on different process parameters, and a data analysis system is adopted to realize one-time test high-throughput iterative screening comparison to obtain reasonable forming process parameters.
2. The apparatus for rapidly formulating molding process parameters of resin-based composite materials according to claim 1, wherein the heating device and the pressurizing device are integrally designed and manufactured, and the heating device is installed in the pressurizing device.
3. The apparatus for rapidly formulating molding process parameters of resin-based composite materials according to claim 2, wherein the heating device is heated by electric heating or electromagnetic induction heating, and the pressurizing device is pressurized by hydraulic pressure or air bag.
4. The apparatus for rapidly formulating resin-based composite material molding process parameters according to claim 1, wherein the ultrasonic gas flowmeter has a minimum pick-up flow of 0.06m3And/h, designing a mode of unidirectional gas flow.
5. The apparatus for rapidly formulating molding process parameters of resin-based composite materials according to claim 1, wherein the inner wall of the U-shaped tube is subjected to hydrophobic surface treatment and is marked with scales.
6. The apparatus for rapidly formulating molding process parameters of resin-based composite materials according to claim 1, wherein the cooling device is cooled by circulating water or liquid nitrogen.
7. An apparatus for rapid prototyping processes as in claim 1 or 2 or 3 wherein the maximum heating temperature of the heating means is 450 ℃.
8. An apparatus for rapid prototyping process parameters of the type described in claim 1, 2 or 3 wherein the maximum compressive loading of the compression means is 3.5 MPa.
9. A method for rapidly establishing the molding process parameters of a resin-based composite material by using the apparatus according to any one of claims 1 to 8, characterized in that the method comprises the following steps:
firstly, determining technological parameters and corresponding quantity N of resin matrix composite materials to be screened;
secondly, installing N groups of corresponding test unit devices in the integrated combined type box body according to the determined number N of the process parameters of the composite material;
thirdly, placing the pre-cured resin-based composite material for the test into a test unit device;
fourthly, starting up the device to test the device to run, and checking whether each device works normally or not;
fifthly, editing and inputting real-time curves of the process parameters of vacuum degree, temperature rise and fall rate and pressure set by the screening test on a display control console, uploading the instruction to the integrated control system, and checking whether the integrated control system is normal;
sixthly, starting operation, and monitoring the weight change of the test object, the generated gas flow change and the volume change of the cooling collection liquid in the reaction process in real time;
seventhly, after the test is finished, carrying out real-time data acquisition and analysis on the technological parameters of the whole process, and screening out the most reasonable molding technological parameters;
eighthly, performing mechanical property test and porosity test on the composite material test plate corresponding to the screened reasonable process parameters, and reflecting whether the screened process parameters are correct and reasonable according to the test result;
and ninthly, adopting screening to formulate reasonable process parameters to perform batch molding preparation on the typical sample of the composite material, and verifying the internal quality of the typical sample of the composite material again through ultrasonic nondestructive testing to prove that the screened molding process parameters have engineering applicability.
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