CN106313581B - A kind of rapid resin infiltration moulding process based on the monitoring of stream leading peak - Google Patents
A kind of rapid resin infiltration moulding process based on the monitoring of stream leading peak Download PDFInfo
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- CN106313581B CN106313581B CN201510406239.3A CN201510406239A CN106313581B CN 106313581 B CN106313581 B CN 106313581B CN 201510406239 A CN201510406239 A CN 201510406239A CN 106313581 B CN106313581 B CN 106313581B
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- solenoid valve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/36—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Abstract
The present invention discloses a kind of rapid resin infiltration moulding process based on the monitoring of stream leading peak on the basis of traditional resin infiltration moulding process.Wherein, system includes three kinds of monitoring modular, vacuum pump, vacuum tank, sensor, solenoid valve A, solenoid valve B, throttle valve, mold, storage tank, filler, release cloth, flow-guiding screen, diversion pipe, pipeline connecting parts, packing cloth and charging, centre and pumping pipelines.Technical process mainly includes that mold is divided into several filling regions, the preceding peak position of stream is monitored by the sensor in the monitoring modular, the sequence start and stop of each pipeline are controlled with hop controller, realize that different filling region substeps are filled, it is finished to the filling of all areas sizing material, product can be obtained in demoulding after curing molding.Compared with traditional handicraft, the present invention has the characteristics that sizing material leading peak non-destructive monitoring and high degree of automation, advantageously reduces the probability that not exclusively filling defects such as infiltration occur, while also reducing cost of labor.Processing of the present invention process especially suitable for the thermosetting resin based composites of various large and complex structures.
Description
Technical field
The present invention relates to a kind of rapid resins based on the monitoring of stream leading peak to infiltrate moulding process, belongs to thermosetting resin base
The molding technical field of composite liquid.
Background technique
The manufacturing process of thermosetting resin based composites flexibly and product excellent combination property so that it is in national defence, boat
It is very widely used in the industries such as sky, electric power, automobile, building materials.Currently, artificial lay-up process applies phase in article manufacturing process
To more, but the production efficiency is relatively low, and resin proportion is relatively large in product, increases the same of quality of item
When, reduce product comprehensive mechanical property, and in product the consistency of gel content and products thickness it is difficult to ensure that.It is more in recent years
Kind novel technological method occurs in succession, and it is wherein to develop one of method the most quick that vacuum assisted resin, which infiltrates moulding process,.
In the certain location arrangements gum-injecting ports and bleeding point of mold, thermosetting resin is drawn into mold to infiltrate under the action of negative pressure
Mode in conjunction with the packing material in mold, significantly shorten the process-cycle, reduce in composite material shared by resin
Ratio improves the comprehensive mechanical property of product.Meanwhile the randomness of product gel content in artificial lay-up process is avoided, it mentions
The high repeatable accuracy of products thickness size.More and more researchers are dedicated to vacuum assisted resin infiltration moulding process
It improves and optimizes.It is now directed to the technical characterstic of this patent, analysis is illustrated to the biggish patent of the existing degree of association.
In terms of stream leading peak monitoring, maximum two patents of the degree of association that can be retrieved are as follows:
(1) application number: 201310643627.4, it is entitled that " one kind is for testing composite liquid molding process
Resin flow fronts on-line system ", the main preceding peak position using pressure sensor detection Flow of Goods and Materials is used for resin base
In composite liquid moulding process.However, need for capillary to be inserted between fiber cloth laying when using the patent,
The structure for destroying product to a certain extent, influences product properties.The monitoring method, which belongs to, damages monitoring.
(2) application number: 200810114760.X, a kind of entitled " method of real-time of LCM moulding process ", this method
It is vertically laid with Carbon fibe beam in preform top and bottom, and constitutes observation circuit with reference resistor, by measuring reference resistor two
The voltage change at end realizes the monitoring to the preceding peak position of resin infiltration.This method needs to be laid in prefabricated component upper and lower surface conductive
Medium will affect product surface state to a certain extent.
In terms of resin infiltration fill process, maximum three patents of the degree of association that can be retrieved are as follows:
(1) application number: 201410406135.8, a kind of entitled " large-sized composite material product entirety stepping RTM work
Skill ", it is main using the method for dividing multiple portions to type chamber and carrying out substep injection, it solves fine in processing large scale resin base
Resin filling is insufficient when dimension enhancing composite product, is easy to produce the shortcomings that defect.The technique reduces to a certain extent
Product generates the probability of defect, but the preparation method introduced in the patent is not involved with the monitoring and phase of stream leading peak
The automatic control answered, needs to be accomplished manually related work, and cost of labor is relatively large.
(2) application number: 201410800587.4, a kind of entitled " the priming by vacuum water conservancy diversion of gusset in wind power generation blade
System and its perfusion method of river diversion ", mainly by using the core material of autonomous Design, then cooperates the sequence start and stop of more gum-injecting ports, real
Existing side perfusion and opposite side drainage make sizing material in core material uniform constant speed flowing up and down.Appearance part is reduced to a certain extent
The problem of hickie, but the monitoring of stream leading peak and corresponding automatic control system are not related in the patent, it is still necessary to artificial complete
At monitoring and process work, manpower consumption is larger.
(3) document " research of fiber reinforced epoxy resin perfusion equipment open control system " (author: Yang Hongliang, west
Peace Polytechnics, 2005) elaborate the thermosetting resin infiltration building control system of processing large and complex structure product, this is
System uses more gum-injecting ports and bleeding point scheme.However, the more gum-injecting ports and bleeding point in this document are the (14- opened simultaneously
Page 15), and whether exhaust pipe is flowed out and is turned off manually from some bleeding point by artificial observation sizing material.It is this to rely on manually
The scheme of observation is not involved with the monitoring of stream leading peak, cannot achieve the automatic control of process.
In conclusion two methods have certain influence to product structure or appearance in terms of stream leading peak monitoring, belong to
Damage monitoring.In terms of resin infiltration fill process, several method can not achieve the monitoring of stream leading peak and process automatically controls,
Cost of labor is relatively high.
Summary of the invention
It is an object of the invention to improve resin infiltration moulding process production efficiency and the degree of automation, manpower consumption is reduced
And production cost.In traditional resin infiltration moulding process, a kind of novel stream leading peak non-destructive monitoring module is increased, and by
This constitutes a kind of rapid resin infiltration moulding process system based on the monitoring of stream leading peak.Present invention process is especially suitable for each
The processing of the thermosetting resin based composites of kind large and complex structure.
The present invention is achieved by the following technical solutions.
A kind of rapid resin infiltration moulding process system based on the monitoring of stream leading peak of the invention includes monitoring modular, true
Empty pump, sensor, solenoid valve A, solenoid valve B, throttle valve, mold, storage tank, filler, release cloth, flow-guiding screen, is led at vacuum tank
Three kinds of flow tube, pipeline connecting parts, packing cloth and charging, centre and pumping pipeline compositions.
Wherein, controller, start button, stop button, power module and connection sensor and electricity are included in monitoring modular
The circuit of magnet valve.
Wherein, preferred sensor is photoelectric sensor, capacitance sensor, ultrasonic sensor, temperature sensor and red
Outer sensor.
Wherein, solenoid valve A is several two-position two-way solenoid valves；Solenoid valve B is the solenoid valve of several two-position three ways；
Wherein, three kinds of charging, centre and pumping pipelines may each comprise one or more；
Wherein, intermediate rubber expects pipe road can not only become feeding pipe, but also can become pumping by the commutation of solenoid valve B
Pipeline.
One of present invention infiltrates moulding process system, connection relationship based on the rapid resin that stream leading peak monitors
Are as follows:
Controller is connected with start button, solenoid valve, sensor and stop button in monitoring modular；Electricity in monitoring modular
Source module is powered to system components.
Vacuum pump connects vacuum tank, and vacuum tank is connected by intermediate duct, exhaust pipe and mold；Storage tank passes through charging
Pipeline, intermediate duct and mold connect.
Wherein, the connection relationship of vacuum pump and vacuum tank are as follows: the air inlet of the gas outlet connection vacuum pump of vacuum tank.
Wherein, vacuum tank passes through the connection relationship of intermediate duct and mold are as follows: vacuum tank air inlet connects solenoid valve B, electricity
Magnet valve B connection solenoid valve A, solenoid valve A connection throttle valve, throttle valve are connected on pipeline connecting parts prefabricated in mold.And
On pipeline on the pipeline that vacuum tank air inlet is connect with solenoid valve B or between solenoid valve B and solenoid valve A or solenoid valve A and
Sensor is installed on designated position on pipeline between throttle valve or on pipeline that throttle valve is connect with mold or on mold.
Wherein, vacuum tank passes through the connection relationship of exhaust pipe and mold are as follows: vacuum tank air inlet connects solenoid valve A, electricity
Magnet valve A connection throttle valve, throttle valve are connected on pipeline connecting parts prefabricated in mold.And in vacuum tank air inlet and solenoid valve
On pipeline on pipeline between A or between solenoid valve A and throttle valve or on pipeline that throttle valve is connect with mold or mold
On designated position on sensor is installed.
Wherein, storage tank passes through the connection relationship of feeding pipe and mold are as follows: storage tank connects solenoid valve A, and solenoid valve A connects
Throttle valve is connect, throttle valve is connected on pipeline connecting parts prefabricated in mold.
Wherein, storage tank passes through the connection relationship of intermediate duct and mold are as follows: storage tank connects solenoid valve B, and solenoid valve B connects
Solenoid valve A, solenoid valve A connection throttle valve are met, throttle valve is connected on pipeline connecting parts prefabricated in mold.And storage tank with
On the pipeline of solenoid valve B connection or on the pipeline between solenoid valve B and solenoid valve A or the pipe between solenoid valve A and throttle valve
Sensor is installed on the road or on the designated position on the pipeline that connect with mold of throttle valve or on mold.
A kind of realization process of rapid resin infiltration moulding process based on the monitoring of stream leading peak of the invention is as follows:
Step 1, prefabricated mould.
Step 1.1 mould cavity bottom surface spray release agent, successively be laid with filler, release cloth, flow-guiding screen, diversion pipe,
Pipeline connecting parts and packing cloth；
Mold is divided into N number of filling region by step 1.2 reasonable Arrangement gum-injecting port and bleeding point on mold；
Step 1.3 sealed mold.
Step 2, according to it is aforementioned it is a kind of based on stream leading peak monitoring rapid resin infiltration moulding process system in each section
Connection relationship set up system.
Step 3 has configured sizing material, and has been stored in storage tank.
Wherein, the sizing material refers to the mixture of thermosetting resin, curing agent and other functional additives.
Step 4 establishes negative pressure using vacuum pump, and the sizing material in storage tank is pumped into mould cavity.
Step 5, the sequence start and stop that various pipelines are controlled using controller, the specific steps are as follows:
Step 5.1 checks the solenoid valve A in all three pipelines, so that all solenoid valve A are normally closed not obtaining electricity condition
State；
Step 5.2 checks the solenoid valve B in all three pipelines, so that all solenoid valve B are in the case where not obtaining electricity condition
Gear is connected with vacuum pump；
Step 5.3 first area infiltrates sizing material, specific order are as follows:
Step 5.3.1 clicks start button, the electricity on solenoid valve A and the first adjacent intermediate duct on feeding pipe
Magnet valve A obtains electric；
Step 5.3.2 judges whether the sensor in the first adjacent intermediate duct or on mold designated position monitors
Stream passes through；
If 5.3.2.1 not monitoring, stream passes through, and shows that first area is also not filled by and finishes, skips to step 5.3.2；
If 5.3.2.2 monitoring, stream passes through, and shows that first area has been filled with and finishes, then: in the first intermediate duct
Solenoid valve B obtain it is electric so that the first intermediate duct is connect with storage tank；The solenoid valve A of feeding pipe is closed, the electromagnetism of next pipeline
Valve A obtain it is electric, at this time first area infiltration sizing material finish.
Wherein, next pipeline in 5.3.2.2 is exhaust pipe when intermediate duct quantity is 1；In intermediate duct quantity
It is the second intermediate duct when greater than 1.
The step of step 5.4 subsequent region infiltrates sizing material, and detailed process is filled with first area sizing material is identical；
Step 5.5 judges whether N is greater than 3, if so, repeating step 5.4, carries out sizing material to third and its rear region and fills out
It fills；If it is not, i.e. N=3, then skip to step 5.6；
Step 5.6 repeats step 5.5, carries out sizing material filling, detailed process to n-quadrant are as follows:
Solenoid valve B in the adjacent intermediate duct of step 5.6.1 exhaust pipe obtain it is electric so that the intermediate duct and storing
Tank connection；The solenoid valve A of previous intermediate duct is closed, and the solenoid valve A of exhaust pipe obtains electric；
Step 5.6.2 judges whether the sensor on exhaust pipe or on mold designated position monitors that stream passes through；
If 5.6.2.1 not monitoring, stream passes through, and shows that n-quadrant is also not filled by and finishes, skips to step 5.6.2；
If 5.6.2.2 monitoring, stream passes through, and shows that n-quadrant has been filled with and finishes.
Step 6, exhaust pipe solenoid A are closed, and click stop button, system stalls.So far, all areas
Sizing material, which has been filled with, to be finished.
After step 7, stowing operation, it is ensured that the throttle valve on all pipelines is closed, and closes throttle valve and mold company
Meet Duan Guanlu.
All pipelines are had end interface position and mold separation from throttle valve near-lying mode by step 8, and cleaning agent is passed through pipeline,
Detergent line waits next product to process.
It after resin solidification in step 9, waiting mold, then is demoulded, made product can be obtained.
Beneficial effect
It is proposed by the present invention it is a kind of based on stream leading peak monitoring rapid resin infiltrate moulding process, have stream leading peak without
The characteristics of damage monitoring and high degree of automation.Compared with traditional handicraft, the present invention advantageously reduces the not exclusively fillings such as infiltration and lacks
Fall into the probability occurred；It is advantageously implemented the non-destructive monitoring of stream leading peak in material filling process；Be conducive to improve resin infiltration at
Type the degree of automation reduces cost of labor.The present invention is especially suitable for the thermosetting resin base of various large and complex structures is compound
The processing of material.It is specific as follows:
(1) present invention increases a kind of novel stream leading peak non-destructive monitoring mould in traditional resin infiltration moulding process
Block, and a kind of rapid resin infiltration moulding process system based on the monitoring of stream leading peak is thus constituted, more injecting glues may be implemented
The sequence start and stop of mouth reduce the not exclusively filling defects such as infiltration generation so that resin infiltration process has more control measures
Probability；
(2) the usable photoelectric sensor of the present invention, inductance sensor, ultrasonic sensor, temperature sensor and infrared sensing
Device is arranged in mold exterior, does not damage article construction and appearance, so as to realize the nothing to stream leading peak in impregnation process
Damage monitoring；
(3) present invention uses stream leading peak monitoring modular, by controller receiving sensor signal and issues control piper electricity
Magnet valve opening and closing signal, effectively improve the degree of automation of resin infiltration process, thus reduce manpower consumption and
Production cost.
Detailed description of the invention
Fig. 1 infiltrates " one in the embodiment 1 in moulding process for a kind of rapid resin based on the monitoring of stream leading peak of the present invention
The composed structure schematic diagram of the rapid resin infiltration moulding process system that kind is monitored based on stream leading peak "；
Wherein: 1 vacuum pump, 2 molds, 3 storage tanks, 4 vacuum tanks, 5 fillers, 6 release cloths, 7 flow-guiding screens, 8
Packing cloth, 9 feeding pipes, 10_1 solenoid valve A, 10_2 solenoid valve A, 10_3 solenoid valve A, 11_1 throttle valve, 11_2 section
Flow valve, 11_3 throttle valve, 12 intermediate ducts, 13_1 photoelectric sensor, 13_2 photoelectric sensor, 14 solenoid valve B, 15
Exhaust pipe, 21_1 pipeline connecting parts, 21_2 pipeline connecting parts, 21_3 pipeline connecting parts, 22_1 diversion pipe, 22_2 diversion pipe,
22_3 diversion pipe.
Fig. 2 infiltrates " one in the embodiment 1 in moulding process for a kind of rapid resin based on the monitoring of stream leading peak of the present invention
The control circuit schematic diagram of the rapid resin infiltration moulding process system that kind is monitored based on stream leading peak "；
Wherein: 10_1 solenoid valve A, 10_2 solenoid valve A, 10_3 solenoid valve A, 13_1 photoelectric sensor, 13_2 photoelectricity
Sensor, 14 solenoid valve B, 16 controllers, 17 start buttons, 18 power modules, 19 stop buttons, the centre 20_1 relay
Device, 20_2 intermediate relay, 20_3 intermediate relay, 20_4 intermediate relay.
Fig. 3 is that photoelectric sensor transmitted ray reflects reflective operation principle；
Fig. 4 is the gum-injecting port of single gum-injecting port technique and the arrangement of bleeding point；
Fig. 5 is the double gum-injecting ports gum-injecting port of fill process and arrangement of bleeding point simultaneously；
Fig. 6 is the defect that double gum-injecting ports while fill process prepare plate.
Specific embodiment
It may be noted that:
(1) as previously mentioned, owning on pipeline in " a kind of rapid resin infiltration moulding process based on the monitoring of stream leading peak "
Solenoid valve A not it is electric when be in normally off, all solenoid valve B not be under electricity condition and connect shelves with vacuum pump
Position.
(2) equipment all in the present invention and raw material are commercially available or the industry is common.If without special
It indicates, used method is the logical of this field in addition to technology characteristics according to the present invention in each embodiment of the invention
Use technology.
With reference to the accompanying drawings and examples, present invention process process feature and its course of work and side are further illustrated
Method, and illustrate its advantage.It should be pointed out that implementation of the invention is not limited by the following examples, appoint to what the present invention was done
What formal accommodation or change will fall into the scope of the present invention.
Embodiment 1
It is respectively 1 tunnel that three kinds of pipelines are taken in the present embodiment, and sensor is photoelectric sensor.Fig. 1 and Fig. 2 are set forth
The corresponding composed structure schematic diagram of the present embodiment and control circuit schematic diagram.It is of the invention " a kind of based on the monitoring of stream leading peak
Its specific order workflow of rapid resin infiltration moulding process system " can be described as: when sizing material starts infiltration, clicking starting and presses
Button, the solenoid valve A in sequence start and stop process on feeding pipe solenoid A and intermediate duct obtain electric, open intermediate duct.In the middle
Between the photoelectric sensor installed on pipeline when monitoring that stream reaches monitoring position, after issuing control signal, on feeding pipe
Solenoid valve A is closed, and storage tank is connected in the solenoid valve B commutation in intermediate duct, at the same the solenoid valve A on exhaust pipe obtain it is electric.When
The photoelectric sensor installed on exhaust pipe monitor stream reach monitoring position, and issue control signal after, all solenoid valves
Power-off, closes all sizing material pipelines, and stowing operation finishes, and clicks stop button, system stalls.
Embodiment 2
It is installed on pipeline in " a kind of rapid resin infiltration moulding process based on the monitoring of stream leading peak " in the present embodiment
Photoelectric sensor be based on transmitted ray refraction reflective operation principle work, transmitted ray refraction reflect working principle
As shown in Figure 3.When not having sizing material to pass through in transparent pipeline, the light of photoelectric sensor transmitting terminal T transmitting is through air and tube wall
Four refractions occur altogether for interface, and then receiving end R is received, and see Fig. 3 (a)；When the material for having translucency high passes through, photoelectric transfer
Through air and tube wall interface four refractions also occur for the light that sensor transmitting terminal T is emitted, but due to material substitution glue
Air in expects pipe road, leads to variations in refractive index, eventually pass through tube wall come out light can not receiving end R receive, see Fig. 3
(b)；When the material for having translucency low passes through, light that photoelectric sensor transmitting terminal T is emitted through tube wall inner boundary with
Mainly reflected when material interface, such light also can not receiving end R receive, see Fig. 3 (c).When receiving end R can be received
The light issued to transmitting terminal T then illustrates that monitoring position has not yet been reached in sizing material leading peak.When photoelectric sensor does not receive incident light
Line then shows that sizing material has reached monitoring position, and issues control signal.
Embodiment 3
The present embodiment is based on the present invention " a kind of rapid resin infiltration moulding process based on the monitoring of stream leading peak ", preparation one
It is a having a size of 23cm × 18cm, the epoxy-based thermoset composite board comprising 10 layers of glass fabric.
(1) prefabricated mould: one layer of release agent is first smeared on die cavity bottom surface, it is big that glass fibre is cut into 23cm × 18cm
It is small, it is laid in the middle position of mould cavity bottom surface, altogether 10 layers of laying, and be sticked to die cavity bottom surface with adhesive tape in a vertex
On, facilitate subsequent demoulding；Release cloth is cut into 23cm × 18cm size, is laid in the upper surface of glass fibre, altogether 1 layer of laying；It will
Flow-guiding screen is cut into 23cm × 18cm size, is laid in the upper surface of release cloth, altogether 1 layer of laying, and viscous with adhesive tape in four vertex
On bottom surface；Sealing is adhesive on bottom surface, the rectangular region of 25cm × 20cm size is formed；Monolith is divided into second-class
Part region, as shown in Figure 1, place diversion pipe and pipeline connecting parts in the rear and front end in each region, with feeding pipe and
The pipeline connecting parts of exhaust pipe connection are horizontal and place towards mold lateral direction, and the pipeline connecting parts connecting with intermediate duct are perpendicular
Straight and court places perpendicular to mold plane outward direction, spreads one layer of outermost of plastic seal cloth, and in corresponding and intermediate tube
Plastic seal cloth is broken in the pipeline connecting parts position of road connection, pipeline connecting parts is exposed, and by cut position on plastic seal cloth
Sealing is set, guarantees that mold has good sealing performance.
(2) pipeline is built and circuit connection: as shown in Figure 1, installing throttle valve 11_1 and solenoid valve on feeding pipe 9
A10_1 installs throttle valve 11_2, photoelectric sensor 13_1, solenoid valve A10_2 and solenoid valve B14 in intermediate duct 12, is taking out
Throttle valve 11_3, solenoid valve A10_3 and photoelectric sensor 13_2 are installed on air pipe 15.According to Fig. 2 connection interlock circuit.Pipeline
In all two-position two-way solenoid valve A not it is electric when be in normally off, two-position three way magnetic valve B not under electricity condition
In connecting gear with vacuum pump.
(3) material is compounded: being compounded epoxy resin and curing agent under 35 DEG C of water environment.Material uses E51
Epoxy resin, curing agent use 650 polyamides, and diluent uses 660A epoxy active diluent.Epoxy resin and solidification
The proportion of agent is 1:1, is 120g, and it is 18g that the quality that diluent is added, which is the 15% of epoxy resin quality,.First add in a reservoir
Enter epoxy resin, add diluent, after mixing evenly, curing agent is added, is stirred for uniform and continues to keep the temperature.The material of compounding
It must be finished within 2 hours.
(4) sequence filling process: using 4 liters of vacuum pump 2FY-4C-N models of twin-stage rotary vane type, (Zhejiang leaps machine to vacuum pump
Electric Co., Ltd), speed of exhaust 14.4m3/ h, limiting pressure 0.2Pa.Photoelectric transfer is acquired using Siemens S7-200PLC
The signal of sensor, and issue solenoid valve control signal.Before starting injecting glue, all throttle valves are open-minded.After starting vacuum pump, click is opened
Dynamic button 17, solenoid valve A10_1 and solenoid valve A10_2 obtain electric, and sizing material starts to infiltrate.When region 1 is full of, sizing material flows into intermediate
Pipeline 12, photoelectric sensor 13_1 monitor to issue control signal after stream passes through, and closes solenoid valve A10_1, solenoid valve B14
Storage tank 3 is connected in commutation, and solenoid valve A10_3 is opened；When region 2 is full of, sizing material flows into exhaust pipe 15, photoelectric sensor 13_2
It monitors to issue control signal after stream passes through, solenoid valve A10_2 and solenoid valve A10_3 are closed, and filling process finishes.
(5) filling post-processing: throttle valve all in pipeline is closed, and throttle valve and mold linkage section pipeline are closed
Afterwards, stop button 19, system stalls are clicked.All pipelines are had into end interface position and mold separation from throttle valve near-lying mode,
All pipelines are cleaned by acetone.After resin spontaneous curing, by conduit, packing cloth, flow-guiding screen, release cloth, diversion pipe
It is removed with pipeline connecting parts etc., it can obtain board product.
Embodiment 4
By single gum-injecting port of rapid resin the infiltration moulding process and traditional handicraft of the invention based on the monitoring of stream leading peak
And fill process compares more gum-injecting ports simultaneously.For the sake of simplicity, more gum-injecting port sequence start and stop techniques in the present embodiment are adopted
With two gum-injecting ports.Traditional gum-injecting port of single gum-injecting port technique and the arrangement of bleeding point is as shown in figure 4, double gum-injecting ports are filled simultaneously
The gum-injecting port of technique and the arrangement of bleeding point are as shown in Figure 5.This two kinds of traditional handicrafts and present invention process are subjected to Experimental comparison,
Show that test data is shown in Table the filling time and defect number of 1: three kind of technique.
From the point of view of the filling time provided by table 1 and product defect number, filled out simultaneously with single gum-injecting port technique and double gum-injecting ports
It fills technique to compare, 61.29% and 25% has been respectively shortened in the filling time of present invention process.Artificial behaviour is avoided in filling process
Make.Meanwhile new process proposed by the invention also avoids the underfill etc. occurred in double gum-injecting ports while fill process
Defect problem.The defect that double gum-injecting ports while fill process prepare plate is as shown in Figure 6.
The filling time of 1 three kinds of techniques of table and defect number
| Process | Gum-injecting port quantity | Processing temperature | Filling time | Defect number |
| Single gum-injecting port fill process | 1 | 50℃ | 31min | 0 |
| Double gum-injecting ports while fill process | 2 | 50℃ | 16min | 3 |
| Present invention process | 2 | 50℃ | 12min | 0 |
Embodiment 5
Pipeline or mold in " a kind of rapid resin infiltration moulding process based on the monitoring of stream leading peak " in the present embodiment
The inductance sensor of upper installation is to utilize the electrodynamic capacity of cell winding when sizing material flows through monitoring position and mutual inductance hair
The principle of mutation is given birth to monitor whether stream reaches monitoring position.The electrodynamic capacity and mutual inductance of cell winding are by circuit
Electric signal is converted to, and is received by controller.Controller can issue corresponding control signal when analyzing sign mutation.
Embodiment 6
Pipeline or mold in " a kind of rapid resin infiltration moulding process based on the monitoring of stream leading peak " in the present embodiment
The ultrasonic sensor of upper installation is whether to reach monitoring position using the transmission principle monitoring stream of ultrasonic wave.Two above and below mold
Transmitting terminal and the receiving end of mounting ultrasonic sensor are distinguished on face.Transmitting terminal issues ultrasonic wave and is situated between through each layer of composition mold
Amplitude decaying occurs after matter, is received by receiving end, after converting the signal into electric signal by circuit, passes to controller.When
When stream is by monitoring position, due to the variation of medium in mold, the ultrasonic signal amplitude that receiving end receives mutates,
Controller can issue corresponding control signal when analyzing the mutation of signal.
Embodiment 7
Pipeline or mold in " a kind of rapid resin infiltration moulding process based on the monitoring of stream leading peak " in the present embodiment
The temperature sensor of upper installation is whether to reach monitoring position using monitoring temperature mutation principle monitoring stream.Temperature signal is logical
It crosses after related circuit is converted to electric signal, is received by controller and analyzed.When mold temperature and stream temperature are there are certain temperature difference,
It is mounted on the temperature of the temperature sensor real-time monitoring monitoring point on mold, when temperature mutation, then shows have stream to pass through
Position is monitored, corresponding control signal can be issued when controller analyzes sign mutation.
Embodiment 8
Pipeline or mold in " a kind of rapid resin infiltration moulding process based on the monitoring of stream leading peak " in the present embodiment
The infrared sensor of upper installation is whether to reach monitoring position using the mutation principle monitoring stream of monitoring radiant energy density.
The relationship of radiant energy density and object temperature meets radiation law:
E=σε(T4-T0 4) (1)
In formula, E is radiant exitance, W/m3；σ be Stefan-Boltzmann constant, 5.67 × 10-8W/ (m2·K4)；ε
For the radiance of object；T is the temperature of object, unit K；T0For the environment temperature around object, unit K.Radiant energy density
After being converted to electric signal by related circuit, is received by controller and analyzed.When mold temperature and stream temperature have certain temperature
Difference is mounted on the radiant energy density of the infrared sensor real-time monitoring monitoring point on mold, when radiant energy density occurs to dash forward
Become, then shows have stream by monitoring position, controller issues corresponding control signal when analyzing sign mutation.
The present invention " a kind of rapid resin infiltration moulding process based on the monitoring of stream leading peak " is carried out above detailed
Illustrate, but specific implementation form of the invention is not limited thereto.The explanation of the implementation is merely used to help understand of the invention
Method and its core concept；At the same time, for those skilled in the art, according to the thought of the present invention, in specific embodiment party
There will be changes in formula and application range, in conclusion the contents of this specification are not to be construed as limiting the invention.In
Without departing substantially from the method for the invention spirit and scope of the claims in the case where to it carry out various obvious changes
All within protection scope of the present invention.
Claims (1)
1. a kind of rapid resin based on the monitoring of stream leading peak infiltrates moulding process, it is characterised in that: the system relied on includes
Monitoring modular, vacuum pump, vacuum tank, sensor, solenoid valve A, solenoid valve B, throttle valve, mold, storage tank, filler, demoulding
Three kinds of cloth, flow-guiding screen, diversion pipe, pipeline connecting parts, packing cloth and charging, centre and pumping pipeline compositions；
Wherein, controller, start button, stop button, power module and connection sensor and solenoid valve are included in monitoring modular
Circuit；
Wherein, sensor is in photoelectric sensor, capacitance sensor, ultrasonic sensor, temperature sensor and infrared sensor
One kind；
Wherein, solenoid valve A is several two-position two-way solenoid valves；Solenoid valve B is the solenoid valve of several two-position three ways；Wherein, described
Charging, centre and pumping three kinds of pipelines may each comprise one or more；
Wherein, intermediate rubber expects pipe road can not only become feeding pipe, but also can become exhaust tube by the commutation of solenoid valve B
Road；
A kind of rapid resin infiltration moulding process system based on the monitoring of stream leading peak, connection relationship are as follows:
Controller is connected with start button, solenoid valve, sensor and stop button in monitoring modular；Power supply mould in monitoring modular
Block is powered to system components；
Vacuum pump connects vacuum tank, and vacuum tank is connected by intermediate duct, exhaust pipe and mold；Storage tank passes through feed pipe
Road, intermediate duct and mold connect；
Wherein, the connection relationship of vacuum pump and vacuum tank are as follows: the air inlet of the gas outlet connection vacuum pump of vacuum tank；
Wherein, vacuum tank passes through the connection relationship of intermediate duct and mold are as follows: vacuum tank air inlet connects solenoid valve B, solenoid valve B
Solenoid valve A, solenoid valve A connection throttle valve are connected, throttle valve is connected on pipeline connecting parts prefabricated in mold；And in vacuum tank
On pipeline on the pipeline that air inlet is connect with solenoid valve B or between solenoid valve B and solenoid valve A or solenoid valve A and throttle valve
Between pipeline on or the pipeline that is connect with mold of throttle valve on or mold on designated position on sensor is installed；
Wherein, vacuum tank passes through the connection relationship of exhaust pipe and mold are as follows: vacuum tank air inlet connects solenoid valve A, solenoid valve A
Throttle valve is connected, throttle valve is connected on pipeline connecting parts prefabricated in mold；And between vacuum tank air inlet and solenoid valve A
Pipeline on or the pipeline between solenoid valve A and throttle valve on the pipeline that is connect with mold of throttle valve on or mold on
Sensor is installed on designated position；
Wherein, storage tank passes through the connection relationship of feeding pipe and mold are as follows: storage tank connects solenoid valve A, solenoid valve A connection section
Valve is flowed, throttle valve is connected on pipeline connecting parts prefabricated in mold；
Wherein, storage tank passes through the connection relationship of intermediate duct and mold are as follows: storage tank connects solenoid valve B, solenoid valve B connection electricity
Magnet valve A, solenoid valve A connection throttle valve, throttle valve are connected on pipeline connecting parts prefabricated in mold；And in storage tank and electromagnetism
On the pipeline of valve B connection or on the pipeline between solenoid valve B and solenoid valve A or on the pipeline between solenoid valve A and throttle valve,
Or sensor is installed on the designated position on the pipeline that connect with mold of throttle valve or on mold；
The described kind of rapid resin based on the monitoring of stream leading peak infiltrates moulding process, realizes that process is as follows:
Step 1, prefabricated mould；
Step 1.1 sprays release agent in mould cavity bottom surface, is successively laid with filler, release cloth, flow-guiding screen, diversion pipe, pipeline
Connector and packing cloth；
Mold is divided into N number of filling region by step 1.2 reasonable Arrangement gum-injecting port and bleeding point on mold；
Step 1.3 sealed mold；
Step 2, according to it is aforementioned it is a kind of based on stream leading peak monitoring rapid resin infiltration moulding process system in each section company
It connects relationship and sets up system；
Step 3 has configured sizing material, and has been stored in storage tank；
Wherein, the sizing material refers to the mixture of thermosetting resin, curing agent and other functional additives；
Step 4 establishes negative pressure using vacuum pump, and the sizing material in storage tank is pumped into mould cavity；
Step 5, the sequence start and stop that various pipelines are controlled using controller, the specific steps are as follows:
Step 5.1 checks the solenoid valve A in all three pipelines, so that all solenoid valve A are normally off not obtaining electricity condition；
Step 5.2 checks the solenoid valve B in all three pipelines so that all solenoid valve B not under electricity condition in and it is true
Sky pump connection gear；
Step 5.3 first area infiltrates sizing material, specific order are as follows:
Step 5.3.1 clicks start button, the solenoid valve A on solenoid valve A and the first adjacent intermediate duct on feeding pipe
It obtains electric；
Step 5.3.2 judges whether the sensor in the first adjacent intermediate duct or on mold designated position monitors that stream is logical
It crosses；
If 5.3.2.1 not monitoring, stream passes through, and shows that first area is also not filled by and finishes, skips to step 5.3.2；
If 5.3.2.2 monitoring, stream passes through, and shows that first area has been filled with and finishes, then: the electromagnetism in the first intermediate duct
Valve B obtain it is electric so that the first intermediate duct is connect with storage tank；The solenoid valve A of feeding pipe is closed, the solenoid valve A of next pipeline
Must be electric, the sizing material of first area infiltration at this time finishes；
Wherein, next pipeline in 5.3.2.2 is exhaust pipe when intermediate duct quantity is 1；It is greater than 1 in intermediate duct quantity
When be the second intermediate duct；
The step of step 5.4 subsequent region infiltrates sizing material, and detailed process is filled with first area sizing material is identical；
Step 5.5 judges whether N is greater than 3, if so, repeating step 5.4, carries out sizing material filling to third and its rear region；If
No, i.e. N=3 then skips to step 5.6；
Step 5.6 repeats step 5.5, carries out sizing material filling, detailed process to n-quadrant are as follows:
Solenoid valve B in the adjacent intermediate duct of step 5.6.1 exhaust pipe obtain it is electric so that the intermediate duct and storage tank connect
It connects；The solenoid valve A of previous intermediate duct is closed, and the solenoid valve A of exhaust pipe obtains electric；
Step 5.6.2 judges whether the sensor on exhaust pipe or on mold designated position monitors that stream passes through；
If 5.6.2.1 not monitoring, stream passes through, and shows that n-quadrant is also not filled by and finishes, skips to step 5.6.2；
If 5.6.2.2 monitoring, stream passes through, and shows that n-quadrant has been filled with and finishes；
Step 6, exhaust pipe solenoid A are closed, and click stop button, system stalls；So far, the sizing material of all areas
It has been filled with and finishes；
After step 7, stowing operation, it is ensured that the throttle valve on all pipelines is closed, and closes throttle valve and mold linkage section
Pipeline；
All pipelines are had end interface position and mold separation from throttle valve near-lying mode by step 8, and cleaning agent is passed through pipeline, is cleaned
Pipeline waits next product to process；
It after resin solidification in step 9, waiting mold, then is demoulded, made product can be obtained.
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| CN201510406239.3A CN106313581B (en) | 2015-07-10 | 2015-07-10 | A kind of rapid resin infiltration moulding process based on the monitoring of stream leading peak |
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| CN106903907B (en) * | 2017-03-24 | 2019-04-09 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A kind of liquid molding process resin automatic injection system and its technique |
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| CN1464828A (en) * | 2001-08-07 | 2003-12-31 | 东丽株式会社 | Method for producing upsized frp member |
| CN102490379A (en) * | 2011-12-12 | 2012-06-13 | 中国科学院宁波材料技术与工程研究所 | Control system and control method of resin transfer moulding glue injection machine |
| WO2012115067A1 (en) * | 2011-02-25 | 2012-08-30 | 東レ株式会社 | Method for producing frp |
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| CN1464828A (en) * | 2001-08-07 | 2003-12-31 | 东丽株式会社 | Method for producing upsized frp member |
| WO2012115067A1 (en) * | 2011-02-25 | 2012-08-30 | 東レ株式会社 | Method for producing frp |
| CN102490379A (en) * | 2011-12-12 | 2012-06-13 | 中国科学院宁波材料技术与工程研究所 | Control system and control method of resin transfer moulding glue injection machine |
| WO2014006131A2 (en) * | 2012-07-05 | 2014-01-09 | Lm Wp Patent Holding A/S | Method and moulding system for manufacturing a fibre-reinforced polymer object via a feedback system for controlling resin flow rate |
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