CN110220788A - A kind of micron mechanical loading unit in situ suitable for X-ray CT system - Google Patents
A kind of micron mechanical loading unit in situ suitable for X-ray CT system Download PDFInfo
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- CN110220788A CN110220788A CN201910611033.2A CN201910611033A CN110220788A CN 110220788 A CN110220788 A CN 110220788A CN 201910611033 A CN201910611033 A CN 201910611033A CN 110220788 A CN110220788 A CN 110220788A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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Abstract
The invention discloses the micron mechanical loading units in situ for being suitable for X-ray CT system, including main body cover, seaming chuck component and pushing head assembly, the main body cover from top to bottom successively include the first cavity, elongated tubular, the second cavity；The seaming chuck component is fixedly connected with the first cylindrical bar by screw by Sheng Sha, and described Sheng Sha is made of shell hollow cylinder and bottom reinforced seat gluing, and for holding the grains of sand, first cylindrical bar is directly contacted with by pressure-like product；The pushing head assembly is made of disc base and the second cylindrical bar, and second cylindrical bar and disc base central circular groove cooperate, and are fixed by gluing, and the pushing head assembly is used to support by pressure-like product.The device can provide the uniaxial compression load of about 0.245N to 4N to sample.
Description
Technical field
The present invention relates to material mechanical performance the field of test technology, it is specifically related to a kind of suitable for X-ray CT system
Micron mechanical loading unit in situ.
Background technique
With the fast development in the fields such as new material, micro electronmechanical and surface and interface, advanced micro/nano-scale is urgently needed
Observation and experimental technique carry out structure of sample under the conditions of Mechanical loading and property evolution process lossless, in real time and three
Tie up whole audience research.However, current most common the instrument such as atomic force microscope and nano impress that can be used for micro- power loading experiment
Instrument etc. is both only used for the detection of material surface mechanical property.In view of x-ray ct technology as it is a kind of it is advanced it is lossless,
High-resolution three-dimensional structure detection means, and home position observation can be realized by introducing mechanical loading unit, therefore, development is suitable for
The micron mechanical loading unit of X-ray CT system is for deep understanding and analysis different materials in micro-meter scale semi-static load mistake
Structure change and mechanical response rule are of great significance in journey.
Since micron mechanical loading unit needs are built in X-ray CT system, it is contemplated that the spy of X ray CT imaging technique
Point, it is desirable that the device meet easy to operate, volume is small as far as possible, can be achieved 360 ° rotation and window need to using X-ray it is easy
The conditions such as penetrable material, it is therefore desirable to develop a kind of micron mechanical loading unit in situ suitable for X-ray CT system.
Summary of the invention
The present invention overcomes the shortcomings that prior art, provides a kind of micron mechanics in situ suitable for X-ray CT system and adds
It carries and sets, which is suitable for X-ray CT system, can apply 0.245N to sample by the fine sand capacity that adjusting pours into Sheng Sha
Uniaxial compression load to 4N (under Sheng Sha full capacity states) range, and can be limited by way of applying sidewise restraint
Pressure head component vertical direction displacement, prevents the generation of creep during CT scan.
In order to reach above-mentioned technical effect, the present invention provides the following technical scheme that
A kind of micron mechanical loading unit in situ suitable for X-ray CT system, including main body cover, seaming chuck component and
Head assembly is pushed, the main body cover from top to bottom successively includes the first cavity, elongated tubular, the second cavity；The seaming chuck group
Part is fixedly connected with the first cylindrical bar by screw by Sheng Sha, and described Sheng Sha by shell hollow cylinder and bottom reinforced seat glue
Viscous composition, for holding the grains of sand, first cylindrical bar is directly contacted with by pressure-like product；The pushing head assembly is by disc base
It is formed with the second cylindrical bar, second cylindrical bar and disc base central circular groove cooperate, and are fixed by gluing, described
Head assembly is pushed to be used to support by pressure-like product.
Further technical solution is, first cavity and the second cavity are cylinder, and first cavity, elongated
Successively gluing connects for pipe, the second cavity.
Further technical solution is that the first cavity bottom side of the main body cover corresponds to the bottom of seaming chuck component
There are two symmetrical first threaded holes for the setting of reinforced seat position, cooperate fastening screw, are used to limit seaming chuck group under tight condition
Part vertical direction displacement.Protrusion without extending apparatus main body cover under the fastening screw tight condition.
Further technical solution is that the second cavity side of the main body cover is provided with the second threaded hole, and cooperation is tight
Gu screw, for clamping the disc base for pushing head assembly.Without extending apparatus main body cover under the fastening screw tight condition
Protrusion.
Further technical solution is that the second cavity of the main body cover is provided with third threaded hole, cooperation fastening spiral shell
Nail, the loading device is fixed in X-ray CT system.
Further technical solution is that there are three the third threaded hole settings, is evenly distributed on the main body cover
On second cavity.
Further technical solution is that the disc base for pushing head assembly is stainless steel material, and remaining part is
Transparent organic glass material.
Further technical solution is, the first cylindrical bar outer wall, the second cylindrical bar outer wall and main body cover it is thin
The surface roughness of inner wall of long pipe is 1.6, and the surface roughness of first cylindrical bar and the second cylinder rod end surface is 0.8.
The present invention is further explained and is illustrated below, the original provided by the invention suitable for X-ray CT system
Position micron mechanical loading unit, including main body cover, seaming chuck component and pushing head assembly.The main body cover is goblet
Shape is made of cylindrical first cavity, elongated tubular and cylindrical second cavity gluing；The seaming chuck component by Sheng Sha and
First cylindrical bar is fixedly connected by screw, and whole weight 0.245N, described Sheng Sha by shell hollow cylinder and bottom reinforced seat
Gluing composition, for holding the grains of sand, first cylindrical bar is directly contacted with by pressure-like product；The pushing head assembly is by disk bottom
Seat and the second cylindrical bar composition, second cylindrical bar and disc base central circular groove cooperate, and are fixed by gluing, institute
Pushing head assembly is stated to be used to support by pressure-like product.Wherein main body cover is goblet shape, and the first, second of main body cover is cylindrical
The components such as cavity and radiographic source, detector in X-ray CT system do not interfere spatially, the elongated tubular of main body cover with
The upper and lower corresponding first, second cylinder thin bar of pressure head component constitutes sample viewing window together, and corresponding inside and outside wall all has
Lesser surface roughness, and dimensional fits are good.Sample viewing window can close to x-ray source to realize high-resolution at
Picture, and except the bearing stability in view of device, the disc base for pushing head assembly is stainless steel material, remaining material is transparent
Organic glass material, it is ensured that device has preferable hardness, intensity, while there is sample viewing window splendid ray to penetrate
Ability is realized and is detected to the CT in situ of sample loading procedure.Using precision balance, the Sheng Sha cylinder of seaming chuck component can hold difference
Weight, different types of graininess apply heavy material, to fine-tune to the uniaxial compression load realization being applied on sample.It should
Device can provide the uniaxial compression load of about 0.245N to 4N (under Sheng Sha full capacity states) to sample.
Compared with prior art, X is fixed on by 3 fastening screws the invention has the following beneficial effects: the device to penetrate
In the sample rotary table of line CT system, easy for installation and easy to operate, transplantability is strong, can be in the X-ray CT system of different model
Upper use.The cylindrical sample observation window diameter of apparatus of the present invention is smaller, and the organic glass material easily penetrated using ray, can
Guarantee high-resolution, the high quality CT image of acquisition sample structure.The quasi-static uniaxial compression load on sample is applied to certain
It is controllable in range, the CT in situ of sample micron Mechanical loading process is observed to realize, including microscopical structure variation, mechanics are rung
It answers and fracture behaviour etc..
Detailed description of the invention
Fig. 1 is the sectional view of micron mechanical loading unit structure provided by the invention；
Fig. 2 is the sectional view of micron mechanical loading unit main body cover provided by the invention；
Fig. 3 is the sectional view of micron mechanical loading unit seaming chuck component provided by the invention；
Fig. 4 is the sectional view of the pushing head assembly of micron mechanical loading unit provided by the invention；
Wherein, the first cavity of 1-, 2- elongated tubular, the second cavity of 3-, the first screw hole of 4-, the second screw hole of 5-, 6- third screw hole,
71- shell hollow cylinder, 72- bottom reinforced seat, the first cylindrical bar of 8-, the second cylindrical bar of 9-, 10- disc base.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It is emphasized that the specific embodiments described herein are merely illustrative of the present invention,
It is not intended to limit the present invention.
Embodiment 1
As shown in Figure 1, the present invention provides a kind of micron mechanical loading unit in situ suitable for X-ray CT system, packet
It includes main body cover (Fig. 2), seaming chuck component (Fig. 3) and pushes head assembly (Fig. 4).The main body cover is goblet shape, by the
One cavity 1, elongated tubular 2 and 3 gluing of the second cavity composition；The seaming chuck component is passed through by Sheng Sha and the first cylindrical bar 8
Screw is fixedly connected, and whole weight 0.245N, described Sheng Sha is made of shell hollow cylinder 71 and 72 gluing of bottom reinforced seat, uses
In holding the grains of sand, first cylindrical bar 8 is directly contacted with by pressure-like product；The pushing head assembly is by disc base 10 and second
Cylindrical bar 9 forms, and second cylindrical bar 9 cooperates with 10 central circular groove of disc base, and is fixed by gluing, under described
Pressure head component is used to support by pressure-like product.
Operation order are as follows: head assembly will be pushed first and be placed in horizontal table top, sample, which is put in, pushes the circle of head assembly second
At mast end face center position.After main body cover and seaming chuck component are assembled, it is slowly inserted in the push-down head for being placed with sample
Component, the first cavity side that main body cover is tightened when seaming chuck component, which moves downward, touches sample correspond to seaming chuck component
The of second cavity side of two hexagonal female end fastening screws and main body cover on the first screw hole 4 of bottom reinforced seat position
A hexagonal female end fastening screw on two screw holes 5, and ensure the protrusion of no extending apparatus main body cover, by whole device
3 fastenings being put on 6 position of third screw hole for then tightening the second cavity of main body cover in X-ray CT system sample rotary table
Screw.The fine sand that benefit weighs with scale with load identical weight to be applied pours into Sheng Sha and unscrews the first sky of main body cover
Two hexagonal female end fastening screws on the first screw hole of chamber side 4 decline to seaming chuck component, after applying stable load, again
Two screws of the first cavity side of main body cover are screwed, the displacement of seaming chuck component vertical direction is limited, and carries out X and penetrates
Line CT Image Acquisition dismantles whole device according to the backward of the above installation procedure after the completion of to be scanned.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair
Bright preferable embodiment, embodiment of the present invention are not limited by the above embodiments, it should be appreciated that those skilled in the art
Member can be designed that a lot of other modification and implementations, these modifications and implementations will fall in principle disclosed in the present application
Within scope and spirit.
Claims (8)
1. a kind of micron mechanical loading unit in situ suitable for X-ray CT system, which is characterized in that including main body cover, on
Pressure head component and pushing head assembly, the main body cover from top to bottom successively include the first cavity, elongated tubular, the second cavity；Institute
It states seaming chuck component and is fixedly connected with the first cylindrical bar by screw by Sheng Sha, described Sheng Sha by shell hollow cylinder and bottom
Portion's reinforced seat gluing composition, for holding the grains of sand, first cylindrical bar is directly contacted with by pressure-like product；The pushing head assembly
It is made of disc base and the second cylindrical bar, second cylindrical bar and disc base central circular groove cooperate, and pass through glue
Cementation is fixed, and the pushing head assembly is used to support by pressure-like product.
2. the micron mechanical loading unit in situ according to claim 1 suitable for X-ray CT system, which is characterized in that
First cavity and the second cavity are cylinder, and successively gluing connects for first cavity, elongated tubular, the second cavity.
3. the micron mechanical loading unit in situ according to claim 1 suitable for X-ray CT system, which is characterized in that
First cavity bottom side of the main body cover corresponds to the bottom reinforced seat position setting of seaming chuck component, and there are two symmetrical
First threaded hole cooperates fastening screw, is used to limit seaming chuck component vertical direction displacement under tight condition.
4. the micron mechanical loading unit in situ according to claim 1 suitable for X-ray CT system, which is characterized in that
Second cavity side of the main body cover is provided with the second threaded hole, cooperates fastening screw, pushes head assembly for clamping
Disc base.
5. the micron mechanical loading unit in situ according to claim 1 suitable for X-ray CT system, which is characterized in that
Second cavity of the main body cover is provided with third threaded hole, cooperates fastening screw, the loading device is fixed on X-ray
In CT system.
6. the micron mechanical loading unit in situ according to claim 5 suitable for X-ray CT system, which is characterized in that
There are three the third threaded hole settings, is evenly distributed on the second cavity of the main body cover.
7. the micron mechanical loading unit in situ according to claim 1 suitable for X-ray CT system, which is characterized in that
The disc base for pushing head assembly is stainless steel material, and remaining part is transparent organic glass material.
8. the micron mechanical loading unit in situ according to claim 1 suitable for X-ray CT system, which is characterized in that
The surface roughness of the long narrow tube inner wall of the first cylindrical bar outer wall, the second cylindrical bar outer wall and main body cover is 1.6, institute
The surface roughness for stating the first cylindrical bar and the second cylinder rod end surface is 0.8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910611033.2A CN110220788B (en) | 2019-07-08 | 2019-07-08 | In-situ micron mechanical loading device suitable for X-ray CT system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910611033.2A CN110220788B (en) | 2019-07-08 | 2019-07-08 | In-situ micron mechanical loading device suitable for X-ray CT system |
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| Publication Number | Publication Date |
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| CN110220788A true CN110220788A (en) | 2019-09-10 |
| CN110220788B CN110220788B (en) | 2022-07-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967248A (en) * | 2019-11-06 | 2020-04-07 | 英国微力测量有限公司 | Microparticle strength measuring instrument and measuring method |
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| CN110220788B (en) | 2022-07-26 |
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