CN108692846A - A kind of hot-press solidifying composite product and mold interface stress monitoring system - Google Patents
A kind of hot-press solidifying composite product and mold interface stress monitoring system Download PDFInfo
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- CN108692846A CN108692846A CN201810438393.2A CN201810438393A CN108692846A CN 108692846 A CN108692846 A CN 108692846A CN 201810438393 A CN201810438393 A CN 201810438393A CN 108692846 A CN108692846 A CN 108692846A
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- 239000002131 composite material Substances 0.000 title claims abstract description 77
- 238000012544 monitoring process Methods 0.000 title claims abstract description 17
- 239000011888 foil Substances 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 28
- 230000002093 peripheral effect Effects 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 229920013657 polymer matrix composite Polymers 0.000 claims description 12
- 239000011160 polymer matrix composite Substances 0.000 claims description 12
- 238000007711 solidification Methods 0.000 claims description 9
- 230000008023 solidification Effects 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 6
- 238000007731 hot pressing Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000005619 thermoelectricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 33
- 230000008569 process Effects 0.000 description 15
- 230000003993 interaction Effects 0.000 description 10
- 238000005259 measurement Methods 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0047—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to residual stresses
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
A kind of hot-press solidifying composite product of present invention offer and mold interface stress monitoring system, the system comprises composite material support plate, setting, the composite product of pending hot-press solidifying processing, the data being arranged above composite product acquire thin slice and are fixed at the foil gauge of data acquisition thin slice upper surface on the supporting plate, the thickness of the data acquisition thin slice is 0.4mm hereinafter, the peripheral size size of data acquisition thin slice is identical as the peripheral size size of the composite product or the two peripheral size difference is no more than ± 0.5mm.The present invention need not measure the physical parameters such as the elasticity modulus of composite material, can calculate shear stress on interface by parameters such as the elasticity modulus of mold materials, have operability.
Description
Technical field
The present invention relates to hot-press solidifyings to prepare field of compound material, and in particular to prepared by a kind of hot-press solidifying composite material
Composite product and mold interface Stress On-Line system in journey.
Background technology
Polymer matrix composites are widely used with its excellent performance in fields such as aerospace, automobile ships.
Autoclave forming process (hot-press solidifying preparation) is widely used in the molding manufacture of polymer matrix composites.But composite wood
Material product deforms seriously after demoulding, influences its formed precision, influences the factor that product is deformed and be broadly divided into:It is uneven
Residual stress causes caused by coefficient of thermal expansion difference and mold and the product interaction of cure shrinkage, resin and carbon fiber
Product is deformed, and wherein the last one factor is especially worth drawing attention.Entirely curing however, being directed to outside Current Domestic
The research of mold and product interface interaction is less in the process.There is report to detect stress using Fiber Optic Sensor, and is specifically solid in hot pressing
Change in composite material preparation process and buries optical fiber to composite product and mold interface.Such as patent application
A kind of spacecraft composite structure ag(e)ing process planted agent's force monitoring methods are provided in 201611117838.4, and patent
A kind of fibrous composite hot moulding curing deformation optical fiber monitoring device of CN201611146925.2 application offers and method.But light
Nanofarads are difficult online detecting/monitoring to stress data.In addition, also there is the report using foil gauge monitor stress data, foil gauge be by
The compositions such as sensitive grid are used for the element of measuring strain.The operation principle of resistance strain gage is made based on strain effect, that is, is led
When body or semi-conducting material generate mechanically deform under the action of external force, resistance value accordingly changes, and this phenomenon claims
For " strain effect ".If patent application CN201610128916.4 provides a kind of monitoring composite material in the curing process,
With the method for mold interaction force.In the invention, in the die surface distribution setting multiple tracks groove of composite material contact, strain
Sensor is embedded in groove, and sensor measurement region both ends are fixed with mold.The strain signal that sensor measures is scaled multiple
Stress value between condensation material and mold realizes the monitoring of solidification process composite material and the Interaction Force of mold.The hair
The bright effective monitoring for realizing the interaction force in solidification process between composite material and mold is composite material curing deformation
Prediction and control provide technical support.The strain transducer in this method be fiber-optic grating sensor, metal strain plate or
Other type strain transducers.But this method at least exists following insufficient:
1) encapsulation process need to be done after being embedded to sensor to groove by being referred in this method, can thus change mold and compound
The interface contact state of material influences the authenticity of interfacial stress measurement;
2) stress state on mold at open channels may with other places and differ, therefore this method may influence
The authenticity of Surface stress measure;
3) larger for the mold of certain materials fluting difficulty, operation difficulty is big, such as mold is polymer matrix composites
Material is difficult to remove fiber in slot when processing tiny groove in the method, this can further influence interfacial stress and survey
The authenticity of examination;
If 4) use optical fiber as sensor in this method, bend, measurement can be caused when optical fiber is drawn groove
Tremendous influence.
Therefore, can the above method has the data obtained by measuring really reflect that interface is answered between mold and composite product
The problem of power, while this method operability is poor.Thus this field is multiple there is still a need for a kind of new hot-press solidifying resin base is developed
Composite product and mold interface stress monitoring system and method in condensation material preparation process, accurately to study the interfacial stress
And then prevent composite product gross distortion after demoulding.
Invention content
Therefore, present invention firstly provides a kind of hot-press solidifying composite product and mold interface stress monitoring system, institutes
The system of stating includes composite material support plate, the setting composite product of pending hot-press solidifying processing, setting on the supporting plate
Data above composite product acquire thin slice and are fixed at the foil gauge of data acquisition thin slice upper surface, described
The thickness that data acquire thin slice is 0.4mm hereinafter, the data acquire the peripheral size size of thin slice and the composite material system
The peripheral size size of part is identical or the two peripheral size difference is no more than ± 0.5mm.
In a kind of specific embodiment, the material of the data acquisition thin slice is multiple with usual hot-press solidifying resin base
The material of the molding die of condensation material is consistent, and the material of the preferably described data acquisition thin slice is the resin base after aluminium, steel or solidification
One kind in composite material.
In the forming process of polymer matrix composites hot-press solidifying, used mold acquires thin slice with respect to the data
For its thickness be very thick.
In a kind of specific embodiment, material and the composite product of the composite material support plate cure
Material afterwards is identical, and support plate is smooth, roughness Ra≤1.6 μm, and plate surface is supported to be coated with releasing agent or release cloth.
So set, to ensure that support plate and a cured product have same or analogous coefficient of thermal expansion.The support plate is this hair
Necessary parts in bright system, the effect of the support plate are to keep not bending in product solidification process within the system.And
When producing composite product using thick molding die vacuum hotpressing, do not need to use the support plate, because producing
In the process, the size of product to be formed is less than the die size for supporting product, and die size is more than the remaining of product size
Amount part can play the role of support plate 11 in the present invention.
In a kind of specific embodiment, the strain acquirement device of online measuring strain is included in the system, it is described
Strain acquirement device includes the foil gauge and sequentially connected foil gauge conducting wire, dynamic strain Acquisition Instrument, connecting line and answers
Become acquisition display.In the present invention, including foil gauge, foil gauge conducting wire, dynamic strain Acquisition Instrument, connecting line and strain acquirement are aobvious
Show that the strain acquirement device of device all can be by commercially available acquisition.The dynamic strain Acquisition Instrument is, for example, DS-NET dynamics
Data collecting instrument.
Further include autoclave in the system in a kind of specific embodiment, it is the composite material support plate, compound
Material, data acquisition thin slice and the foil gauge are arranged in the autoclave.
Further include the thermocouple being arranged in autoclave, the heat in a kind of specific embodiment, in the system
Galvanic couple is arranged above data acquisition thin slice and position that is close or being close to the foil gauge.
In a kind of specific embodiment, the foil gauge is pasted and fixed on data using high-temperature plastic and acquires thin slice
On.
In the present invention, the foil gauge is pasted onto using high-temperature plastic on data acquisition thin slice 10, and the high-temperature plastic can
By commercially available acquisition, to need the temperature for being resistant to hot-press solidifying composite material in autoclave.Foil gauge is by high molecular material
It is made, thus cannot be welded on data acquisition thin slice, in addition to pasting and fixing, can also take other form and fix the two,
Such as bayonet type, but more preferably use adhesive means.
In a kind of specific embodiment, the peripheral size size and the composite material system of the data acquisition thin slice
The peripheral size size difference of part is no more than ± 0.2mm.
In a kind of specific embodiment, the thickness of the data acquisition thin slice 10 is 0.3mm or less.
In a kind of specific embodiment, the setting composite material that pending hot-press solidifying is handled on the supporting plate
The thickness of product is 0.5mm or more, and the thickness of the preferably described product is 0.7~2mm.
The present invention correspondingly provides a kind of hot-press solidifying composite product and mold interface stress monitoring method, the prison
Survey method includes being monitored using a kind of interfacial stress monitoring system, and the system comprises composite material support plate, settings to exist
The composite product of pending hot-press solidifying processing, the data acquisition thin slice being arranged above composite product in support plate
And it is fixed at the foil gauge of data acquisition thin slice upper surface, the thickness of the data acquisition thin slice is for 0.4mm hereinafter, institute
State data acquisition thin slice peripheral size size is identical as the peripheral size size of the composite product or the two periphery ruler
Very little difference is no more than ± 0.5mm;It is after using the system detectio to strain data, the strain data and data acquisition is thin
The elasticity modulus data of piece material therefor, which are multiplied, obtains the interfacial stress of the composite product and mold.
In the present invention, the hot-press solidifying composite material is polymer matrix composites, is, for example, specifically resin and carbon fiber
Composite material or resin and glass fiber compound material etc..After the mold is, for example, aluminum die, steel mold or curing molding
Polymer matrix composites mold.In the present invention, the foil gauge is obtained by buying, the foil gauge used in the embodiment of the present invention
For resistance to 180 DEG C of medium temperature foil gauge.In the present invention, foil gauge conducting wire is also mating purchase, it can equally be resistant to 180 DEG C and
Above temperature.
It is located above if during normal hot-press solidifying prepares polymer matrix composites be folded in foil gauge
Between product and underlying mold (mold thickness is generally 8~20mm), because being needed by viscosity flow in product solidification process
The states such as state, gel state and glassy state, at this moment foil gauge will can't detect during this complicated physical and chemical changes
Data.Therefore, those skilled in the art's strain measurement hot-press solidifying generally difficult to use prepares polymer matrix composites
Stress between mold and interface in the process.And in the present invention, system is measured indirectly using the data acquisition thin slice 10 of thickness very little
The strain to interact between part and mold.
Multiple material product-mold interface stress test system is constructed based on dynamic balance and equivalence principle, obtains and cured
Journey answers material product and mold interaction interface strain variation rule.This method is based on following two assumed conditions:1) assume aluminium
Piece (data acquisition thin slice) is not bent in entire solidification process.2) stress gradient is not present on the thickness direction of aluminium flake.
In fact, in the system of the present invention, for the 1) point, because aluminium flake and product are fitted tightly over composite wood under hyperbaric environment
Expect in support plate, is not in buckling phenomenon;It is therefore assumed that setting up.For the 2) point, because the thickness of aluminium flake is very small, in aluminium
Stress gradient is not present in piece thickness direction, i.e. the upper and lower surface stress or stress state of aluminium flake are consistent, therefore the hypothesis
It sets up.
Skilled person will appreciate that, to avoid composite product from being bent after curing molding, need to know solidification
Interfacial stress between mold for forming and product, stress=strain × elasticity modulus, and the only strain data that can be measured, this
Can be with the elasticity modulus of Usage data collection thin slice (aluminium flake) in invention, it is a constant, so as to smoothly acquire interface
Stress data.And if foil gauge is directly attached to composite product and mold interface and goes to survey and strained, in such conventional method
In, then the elasticity modulus for measuring composite product is needed, because of state in the complexity and forming process of composite material compositions
Complexity, the elasticity modulus data are difficult to be measured by research technique, therefore even if foil gauge is directly attached to product and mold
Interface measure strain value after, it is also difficult to get the data of interfacial stress.
The present invention at least has the advantages that:
1, the present invention dexterously monitors mold using rigidly connected foil gauge and data acquisition thin slice and other components
Interaction between composite product will be difficult to the mold measured originally -- and the interaction force between product becomes to hold
Easily measure.
2, the system and method need not measure the physical parameters such as the elasticity modulus of composite material, can be by mold materials (i.e.
Data acquire thin slice material therefor, such as aluminium) the parameters such as elasticity modulus calculate shear stress on interface, there is operability.
3, the system and method are suitable under the mold (such as composite material of aluminium, steel or forming) of all materials
To mold -- product interaction is monitored.
4, the present invention realizes mold -- the real-time monitoring of product interface interaction strain, to analyse in depth large-scale composite material
Component curing deformation provides theoretical foundation.
Description of the drawings
Fig. 1 is the depression angle structural schematic diagram of system of the present invention.
Fig. 2 is the main view angle structural schematic diagram of components of system as directed structure of the present invention.
Fig. 3 is to use systematic survey mold of the present invention -- the strain result to interact between composite product
Figure.
In figure, 1- autoclaves, 2- thermocouples, 3- autoclave preformed holes, 4- temperature sensors, 5- strain acquirement displays,
6- connecting lines, 7- dynamic strain Acquisition Instruments, 8- foil gauge conducting wires, 9- foil gauges, 10- data acquire thin slice, 11- composite material branch
Fagging, 12- composite products.
Specific implementation mode
As depicted in figs. 1 and 2, a kind of hot-press solidifying composite product of present invention offer and mold interface stress monitoring system
System, the system comprises composite material support plate 11, the setting composite material systems that pending hot-press solidifying is handled on the supporting plate
Part 12, the data being arranged above composite product acquire thin slice 10 (aluminium flake) and are fixed on data acquisition thin slice
The foil gauge 9 on surface, the thickness that the data acquire thin slice 10 is 0.4mm hereinafter, the data acquire the peripheral size of thin slice
Size is identical as the peripheral size size of the composite product or the two peripheral size difference is no more than ± 0.5mm.
In the present invention, for the setting of product 12 below data acquisition thin slice 10, foil gauge is arranged acquires thin slice 10 in data
Top does not have stress gradient between data acquire above and below thin slice 10.The setting of thermocouple 2 acquires thin slice 10 in data
Top, for detecting the temperature near foil gauge 9.In the present invention, data acquire the in the same size of thin slice 10 and product 12 or
Close, if data acquisition thin slice 10 is significantly less than product, in product viscous state, the high pressure in autoclave can be easy count
It is pressed into product according to acquisition thin slice 10.If data acquire thin slice 10 and are significantly greater than product, data acquire thin slice 10 in hot pressing
It can bend under condition of high voltage in tank so that it is curved and intermediate under its surrounding to arch upward, so that the stress data detected
It is inaccurate.Therefore, both of which can not accurate response interface actual strain situation.The on-line monitoring system of the present invention
In, it is ensured that product and data acquisition thin slice 10 will not all bend in measurement process.Data acquisition thin slice 10 can be with
It is plain film or the curved tabs with radian, is in fact carried mostly centainly in the polymer matrix composites product product of hot-press solidifying
Radian first pursues fundamental studies in of the invention, first sets data acquisition thin slice 10 to tablet, first studies the interfacial stress feelings of tablet
Condition subsequently studies other complex configuration structures again.It can guarantee using on-line monitoring system of the present invention:1) data acquire thin slice
10 are not bent during entirely experiment product is cured so that the value that foil gauge measures can reflect always actual value.2) data
The stress up and down for acquiring thin slice 10 is consistent, and the mold and product interfacial stress data that guarantee foil gauge measures indirectly are accurate.
In a particular embodiment, the length of foil gauge is 5mm, and width 3mm, thickness is 0.2~0.3mm, tests product
12 and data acquisition thin slice 10 be long 200mm, wide 50mm, it is 0.25mm that data, which acquire 10 thickness of thin slice, tests the thickness of product
Degree is 1mm or so.The shape and size of the experiment product used from the visible present invention of foregoing description and the hot pressing prepared usually
Cure the shape and size of composite product product and differs.
Using mold during system thinking polymer matrix composites curing molding of the present invention -- product interacts
Strain measurement the results are shown in Figure 3.
In the present invention, it is the cured necessary condition of product to vacuumize.The unit of right side ordinate strain value is 10 in Fig. 3-6,
Its value is that positive number indicates that stretching strain, value are negative number representation compressive strain.It is divided into I, II, III, IV and V this five by strain in figure
Stage.
In stage i, softens in uncured glassy state (being similar to plasticine state) product temperature-rise period, adopted with data
Collect thin slice 10 (aluminium flake) to be bonded closely, temperature increase data acquisition thin slice 10 can also expand, and can also be in close contact to product, but shadow
It rings little.It is stretching strain in stage i, illustrates that data acquire expansion of the expansion more than product of thin slice (aluminium flake).
In phase il, product is viscous state (likeness in form is liquid), and data acquire influence of the thin slice (aluminium flake) to product
Smaller, strain goes to zero.
In the Section III stage, initial period strain regime changes greatly.In the Section III stage, composite product is by gel state
To rubber transition, data acquire tight bond between thin slice and composite product.
In the IVth stage, declining with temperature, data, which acquire, generates adhesion shearing force between thin slice and composite product,
Strain variation state is maximum;
It in the Vth stage, is slided between data acquisition thin slice and composite product, there are definite values to slide shearing force, answers
Become substantially constant.
The above content is combine specific preferred embodiment to the further description of the invention made, and it cannot be said that originally
The specific implementation of invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, not
Under the premise of being detached from present inventive concept, several simple deductions and replacement can also be made, all shall be regarded as belonging to the guarantor of the present invention
Protect range.
Claims (10)
1. a kind of hot-press solidifying composite product and mold interface stress monitoring system, which is characterized in that the system comprises
The composite product (12) of pending hot-press solidifying processing, setting exist on the supporting plate for composite material support plate (11), setting
Data above composite product acquire thin slice (10) and are fixed at the foil gauge of data acquisition thin slice upper surface
(9), the data acquire the thickness of thin slice (10) as 0.4mm hereinafter, the data acquire peripheral size size and the institute of thin slice
State composite product peripheral size size is identical or the two peripheral size difference is no more than ± 0.5mm.
2. system according to claim 1, which is characterized in that the material of the data acquisition thin slice is solid with usual hot pressing
The material for changing the molding die of polymer matrix composites is consistent, and the material of the preferably described data acquisition thin slice is aluminium, steel or solidification
One kind in polymer matrix composites afterwards.
3. system according to claim 1, which is characterized in that the material of the composite material support plate and the composite wood
Expect that the material after product solidification is identical, and support plate is smooth, roughness Ra≤1.6 μm, and plate surface is supported to be coated with demoulding
Agent or release cloth.
4. system according to claim 1, which is characterized in that include the strain acquirement of online measuring strain in the system
Device, the strain acquirement device include that the foil gauge (9) and sequentially connected foil gauge conducting wire (8), dynamic strain are adopted
Collect instrument (7), connecting line (6) and strain acquirement display (5).
5. system according to claim 1, which is characterized in that further include autoclave in the system, the composite material
Support plate (11), composite product (12), data acquisition thin slice (10) and the foil gauge (9) are arranged at the hot pressing
In tank.
6. system according to claim 5, which is characterized in that further include the thermoelectricity being arranged in autoclave in the system
Even (2), the thermocouple is arranged above data acquisition thin slice and position that is close or being close to the foil gauge.
7. system according to claim 1, which is characterized in that the foil gauge is pasted and fixed on data using high-temperature plastic
It acquires on thin slice.
8. system according to claim 1, which is characterized in that the peripheral size size of data acquisition thin slice with it is described
The peripheral size size difference of composite product is no more than ± 0.2mm.
9. system according to claim 1, which is characterized in that the thickness of data acquisition thin slice (10) be 0.3mm with
Under.
10. the system according to any one of claim 1~9, which is characterized in that pending heat on the supporting plate is arranged
The thickness of the composite product of cured processing is 0.5mm or more, and the thickness of the preferably described product is 0.7~2mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088026A (en) * | 2022-01-20 | 2022-02-25 | 江苏奥琳斯邦装备科技股份有限公司 | Hot-pressing curing device and curing method for strain measurement |
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| CN114088026B (en) * | 2022-01-20 | 2022-04-05 | 江苏奥琳斯邦装备科技股份有限公司 | Hot-pressing curing device and curing method for strain measurement |
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