CN110320090A - A kind of encapsulating method of Composite Material Stiffened Panel axial compression test part - Google Patents
A kind of encapsulating method of Composite Material Stiffened Panel axial compression test part Download PDFInfo
- Publication number
- CN110320090A CN110320090A CN201910587286.0A CN201910587286A CN110320090A CN 110320090 A CN110320090 A CN 110320090A CN 201910587286 A CN201910587286 A CN 201910587286A CN 110320090 A CN110320090 A CN 110320090A
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- CN
- China
- Prior art keywords
- composite material
- compression test
- axial compression
- test part
- stiffened panel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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
Abstract
The present invention is a kind of encapsulating method of Composite Material Stiffened Panel axial compression test part, this method is poured into glue filling box 1 after mixing host agent, curing agent, it will be in one end insertion glue filling box of Composite Material Stiffened Panel axial compression test part 2, it completes to be fixedly connected after cured, it is characterized by: quartz sand is added in host agent, it mixes with curing agent, is eventually poured into glue filling box again after mixing；The addition quality of quartz sand and the total mass ratio of host agent and curing agent are as follows: 0.5~1.2.This method can effectively prevent the excessively high problem of the glue temperature occurred in potting process, improve casting glue weight, to reduce compression test data deviation.
Description
Technical field
The present invention is a kind of encapsulating method of Composite Material Stiffened Panel axial compression test part, is related to the manufacture neck of composite material
Domain.
Background technique
With the continuous improvement of the performance and manufacturing technology of composite material, composite material has become aerospace flight vehicle
Primary structural material.Compressive strength is one of the parameter of common characterization composite materials property, by carrying out compression examination
Test the compressive strength that can measure material.The prior art is usually to pass through axis after preparing axial compression test part to the measurement of compressive strength
Testing machine is pressed to be measured, this method is high to the machining accuracy and surface quality requirements of testpieces.In recent years, both at home and abroad
Engineering staff, which generallys use, is potted the method for carrying out machine finishing again progress axial compression test part to composite materials testing part
Manufacture.
For encapsulating process, the double-component epoxy adhesive for generalling use normal temperature cure carries out encapsulating, time addition when mixing glue
Host agent, curing agent, pour into glue filling box after mixing, place into Material Stiffened Panel axial compression test part, glue is made not have overtesting part
End can carry out subsequent mechanical processing work after glue is fully cured.
It is found in practical study and application, when using the prior art to axial compression test part encapsulating, heat is released in reaction, is caused
Increase glue temperature.In the biggish situation of glue dosage, the heat that curing reaction itself generates more is concentrated, and is be easy to cause
Glue local temperature is excessively high, or even generates implode, and the colloidal property after seriously affecting part and solidifying leads to compression test data
Deviation.
Summary of the invention
The present invention is exactly directed to above-mentioned disadvantage existing in the prior art and designs and provide a kind of Stiffened wall
Board shaft presses the encapsulating method of testpieces, and the purpose is to the excessively high problems of the glue temperature for effectively preventing occurring in potting process, keep away
Exempt from high-temperature damage composite material parts, improve casting glue weight, to reduce compression test data deviation.
The purpose of the present invention is achieved through the following technical solutions:
The encapsulating method of this kind of Composite Material Stiffened Panel axial compression test part is to pour into encapsulating after mixing host agent, curing agent
In box 1, by one end insertion glue filling box of Composite Material Stiffened Panel axial compression test part 2, complete to be fixedly connected after cured,
It is characterized in that: quartz sand being added in host agent, is mixed again with curing agent after mixing, eventually pours into glue filling box；
The addition quality of quartz sand and the total mass ratio of host agent and curing agent are as follows: 0.5~1.2.
The host agent and curing agent are two kinds of components of the double-component epoxy adhesive of normal temperature cure respectively.
In a kind of implementation, the granularity of quartz sand is 150~400 mesh.
It in a kind of implementation, is added before quartz sand in host agent, host agent is heated, heating temperature is no more than 40~60
℃。
In a kind of implementation, host agent mixed with curing agent after to Composite Material Stiffened Panel axial compression test part 2 be inserted into encapsulating
The time of box 1 is no more than 30min.
In another kind is implemented, the granularity of quartz sand is 150~400 mesh.It is further 200 mesh.
In another kind is implemented, it is added before quartz sand in host agent, host agent is not heated.
In another kind is implemented, host agent is inserted into Composite Material Stiffened Panel axial compression test part 2 after mixing with curing agent and is filled
The time of glue box 1 is no more than 30min.
In another kind is implemented, the trade mark of the double-component epoxy adhesive of host agent and curing agent composition is DG-3.
In another kind is implemented, the trade mark of the double-component epoxy adhesive of host agent and curing agent composition is J-133.
The method of the present invention is that quartz sand is mixed into glue, by reducing reaction raw materials quantity in unit volume glue, is subtracted
The thermal discharge of few unit volume glue, while slowing down curing reaction rate, reach the mesh for preventing glue curing reaction temperature excessively high
's.
The characteristics of the method for the present invention and advantage are:
1. a certain amount of quartz sand is added in host agent can reduce the implode phenomenon generated when curing agent is added.Quartz sand
The total mass ratio of quality and host agent and curing agent is added are as follows: 0.5~1.2.If ratio is less than 0.5, then biggish in glue quality
In the case of, it still will appear implode phenomenon, not can guarantee the compressive strength of glue；If ratio is greater than 1.2, then resin contains in glue
It measures very few, not can guarantee the compressive strength of glue；
2. selection quartz sand simultaneously considers that its granularity is to can be improved glue entirety because quartz sand has preferable thermal conductivity
Heat dissipation performance；The mesh number of granularity is higher, and the surface area of quartz sand is higher, can be improved and glue cohesive force, but mesh number mistake
Height will increase cost, and effect promoting is unobvious；
3. host agent is preheated between addition quartz sand, heating can make host agent be uniformly dispersed, higher for room temperature viscosity
Double-component epoxy adhesive, suitably heated, can reduce viscosity in this way, improve mobility, be conducive to uniformly mixing；But work as
When heating temperature is more than 60 DEG C, reaction temperature is improved after mixing, reaction rate is accelerated, and gelatin viscosity is quickly increased, can be operated
Time shortens；Double-component epoxy adhesive lower for room temperature viscosity, itself mobility is preferable, can be without heating.
4. the heat that the method for the present invention can be such that glue reaction generates is uniformly dispersed, effectively prevent occurring in potting process
The excessively high problem of glue temperature, avoid high-temperature damage composite material parts, improve casting glue weight, thus reduce compression examination
Test data deviation.
Detailed description of the invention
Fig. 1 is the isometric side view of Composite Material Stiffened Panel axial compression test part
Fig. 2 is the isometric side view of glue filling box
Fig. 3 is that one end of Composite Material Stiffened Panel axial compression test part has been inserted into the glue filling box of glue and has fixed
Schematic diagram
Fig. 4 is the schematic diagram of the Composite Material Stiffened Panel axial compression test part after the completion of the encapsulating of both ends
Specific embodiment
Technical solution of the present invention is further described below with reference to drawings and examples:
The step of encapsulating method of Composite Material Stiffened Panel axial compression test part of the present invention are as follows:
(1) polishing splicing face；
(2) host agent component is preheated (only to the higher double-component epoxy adhesive of room temperature viscosity)；
(3) quartz sand is added in host agent；
(4) host agent is uniformly mixed with quartz sand；
(5) curing agent is added in the host agent of Xiang Hanyou quartz sand；
(6) liquid cement agitation is uniformly mixed；
(7) mixed glue is poured into glue filling box；
(8) Material Stiffened Panel axial compression test part glue filling box is put into fix；
(9) glue solidification is waited.
Embodiment 1
According to above-mentioned steps, the material of the Composite Material Stiffened Panel axial compression test part 1 in the embodiment is M21C resin
Prepreg, as shown in Figure 1, sand paper used is 120 mesh of panda, casting glue used is DG-3, and quartz sand used is 200 mesh.
Firstly, crossing at the position of the both ends of Composite Material Stiffened Panel axial compression test part 1 insertion glue filling box 1, adopt
With 120 mesh sand paper of panda, the resin on testpieces surface is polished off, fiber is not injured, the host agent component of DG-3 is poured into container
It is heated, is sufficiently stirred during heating；200 mesh quartz sands are added in a reservoir, then are sufficiently stirred；It stirs
After mixing uniformly, curing agent component is added, is sufficiently stirred；The glue for preparing ratio in container is added into glue filling box 1, is such as schemed
Shown in 2, one end of Composite Material Stiffened Panel axial compression test part is entered into the glue filling box 1 of good glue and fixed, such as Fig. 3 institute
Show；After glue solidification, above-mentioned steps are repeated, encapsulating is carried out to the other end of Composite Material Stiffened Panel axial compression test part 1
Operation, the good Composite Material Stiffened Panel axial compression test part of two sides encapsulating are as shown in Figure 4.
Embodiment 2
According to above-mentioned steps, the material of the Composite Material Stiffened Panel axial compression test part 1 in the embodiment is X850 resin
Prepreg, as shown in Figure 1, sand paper used is 120 mesh of panda, casting glue used is J-133, and quartz sand used is 200 mesh.
Firstly, crossing at the position of the both ends of Composite Material Stiffened Panel axial compression test part 1 insertion glue filling box 1, adopt
With 120 mesh sand paper of panda, the resin on testpieces surface is polished off, fiber is not injured, the host agent component of J-133 is poured into container
In；200 mesh quartz sands are added in a reservoir, then are sufficiently stirred；After mixing evenly, curing agent component is added, sufficiently
Stirring；The glue for preparing ratio in container is added into glue filling box 1, is tried as shown in Fig. 2, Composite Material Stiffened Panel axis is pressed
The one end for testing part enters into the glue filling box 1 of good glue and fixes, as shown in Figure 3.
Claims (8)
1. a kind of encapsulating method of Composite Material Stiffened Panel axial compression test part, this method is fallen after mixing host agent, curing agent
Enter in glue filling box (1), by one end insertion glue filling box of Composite Material Stiffened Panel axial compression test part (2), completes after cured
It is fixedly connected, it is characterised in that: quartz sand is added in host agent, is mixed again with curing agent after mixing, eventually pours into
In glue filling box；
The addition quality of quartz sand and the total mass ratio of host agent and curing agent are as follows: 0.5~1.2.
2. the encapsulating method of Composite Material Stiffened Panel axial compression test part according to claim 1, it is characterised in that: host agent
It is two kinds of components of the double-component epoxy adhesive of normal temperature cure respectively with curing agent.
3. the encapsulating method of Composite Material Stiffened Panel axial compression test part according to claim 1, it is characterised in that: quartz
The granularity of sand is 150~400 mesh.
4. the encapsulating method of Composite Material Stiffened Panel axial compression test part according to claim 1, it is characterised in that: host agent
Before middle addition quartz sand, host agent is heated, heating temperature is no more than 40~60 DEG C.
5. the encapsulating method of Composite Material Stiffened Panel axial compression test part according to claim 1, it is characterised in that: host agent
Time after mixing with curing agent to Composite Material Stiffened Panel axial compression test part (2) insertion glue filling box (1) is no more than 30min.
6. the encapsulating method of Composite Material Stiffened Panel axial compression test part according to claim 1, it is characterised in that: host agent
The trade mark of the double-component epoxy adhesive constituted with curing agent is DG-3.
7. the encapsulating method of Composite Material Stiffened Panel axial compression test part according to claim 1, it is characterised in that: host agent
The trade mark of the double-component epoxy adhesive constituted with curing agent is J-133.
8. the encapsulating method of Composite Material Stiffened Panel axial compression test part according to claim 3, it is characterised in that: quartz
The granularity of sand is 200 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910587286.0A CN110320090A (en) | 2019-07-01 | 2019-07-01 | A kind of encapsulating method of Composite Material Stiffened Panel axial compression test part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910587286.0A CN110320090A (en) | 2019-07-01 | 2019-07-01 | A kind of encapsulating method of Composite Material Stiffened Panel axial compression test part |
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| CN110320090A true CN110320090A (en) | 2019-10-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670683A (en) * | 2021-07-27 | 2021-11-19 | 中航西安飞机工业集团股份有限公司 | Glue filling clamp and glue filling method for reinforced wallboard compression test piece |
| CN114441278A (en) * | 2021-12-20 | 2022-05-06 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Encapsulating method and device for composite material reinforced wall plate test piece for airplane |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670683A (en) * | 2021-07-27 | 2021-11-19 | 中航西安飞机工业集团股份有限公司 | Glue filling clamp and glue filling method for reinforced wallboard compression test piece |
| CN114441278A (en) * | 2021-12-20 | 2022-05-06 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Encapsulating method and device for composite material reinforced wall plate test piece for airplane |
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Application publication date: 20191011 |