CN107132104A - It is a kind of to prepare the mould with planarization CA mortar specimens - Google Patents
It is a kind of to prepare the mould with planarization CA mortar specimens Download PDFInfo
- Publication number
- CN107132104A CN107132104A CN201710253016.7A CN201710253016A CN107132104A CN 107132104 A CN107132104 A CN 107132104A CN 201710253016 A CN201710253016 A CN 201710253016A CN 107132104 A CN107132104 A CN 107132104A
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- mould
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- mortar
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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
-
- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
It is a kind of to prepare the mould with planarization CA mortar specimens, belong to mechanical manufacturing field.The mould includes upper and lower die cover and the mould cylinder main body of cylindrical type；It is sleeve connection between two die covers and mould cylinder main body.The side of mould cylinder main body is provided with dismounting preset slot；Side middle part is provided with injected hole；The upper and lower air being provided with mould of being drained in steam vent, casting process, is smoothed out to pour into a mould sideways；Side middle part is provided with is more than injected hole internal diameter with the mould cylinder close-connected slip casting compensating cylinder of main body, the internal diameter of slip casting compensating cylinder, and its center axis is overlapped with injected hole central axis.The present invention ensure that the both ends of the surface of its CA mortar specimen being molded have good flatness and parallel relation, overcomes conventional CA mortars mould to make test specimen the problem of needing to carry out the process of surface polishing after completing, saves the time；Ensure the dimensional accuracy of CA mortar specimens, it is to avoid the inhomogeneities and unstability of CA mortar specimen mechanical experimental results.
Description
Technical field
The invention belongs to mechanical manufacturing field, it is related to and a kind of prepares the mould with planarization CA mortar specimens.
Technical background
Cement-emulsified asphalt composite is cement emulsified asphalt mortar, English entitled Cement Asphalt
Emulsion Mortar, also known as CA mortars, one be made up of multiple materials such as cement, emulsified asphalt, sand and a variety of additives
Plant organic/inorganic composite material.CA mortars are mainly used in the elastic insert of ballastless track of high-speed railway, and conjunction is provided for track plates
Suitable malleable, damping capacity and enabling capabilities, while also acting as the space of filling track plates and concrete base layer, leveling track
Plate, it is ensured that the linear effect of track.
It is use at present both at home and abroad when carrying out the measurement experiment of the mechanical property such as the resistance to compression of CA mortars and CA mortar modulus of elasticity more
Formed in mould test specimen with one-side mould lid, but one side often results in test specimen and existed when opening wide cylindrical type mould molding test specimen
Exposed aerial end face planarization is poor during shaping.Polishing is needed after the shaping of CA mortar specimens, before progress mechanical test, no
But take time and effort, and often lead to polishing after both ends of the surface can not be parallel, pressure head of testing machine can not have good between test specimen
Contact, loading initial stage testing machine stress uniformly can not act on test specimen end face on, be pressurized when often in root
Portion produces flexural tensile stress, and thus obtained load-deformation curve is inaccurate, and test specimen in forming process due to plastic deformation
And can all have size penalty in end face bruting process so that measurement result is inaccurate.
The content of the invention
The problem of existing for prior art, the present invention provide it is a kind of be used for prepare CA mortar specimens two-sided closing into
Pattern has, the mould can improve CA mortar specimens surface irregularity prepared by the unlimited cylindrical type mould of existing one side,
Test specimen two ends face is uneven after plastic shrinkage causes that sample dimensions are not enough, polishing CA mortar specimen end faces the are lost time energy, polishing
The problems such as capable and sample dimensions are lost.The present invention is to make the mould for being used for testing CA mortar mechanical property test specimens, using this mould
The test specimen of tool shaping has profile pattern and dimensional stability.
In order to achieve the above object, technical solution of the present invention is：
A kind of mould ensured for testing CA mortar mechanical property test specimen planarizations, including mold lid 1, lower mould
Has the mould cylinder main body 3 of lid 2, cylindrical type.
Sawtooth is equipped with described mold lid 1, lower die cover 2, is set between two die covers and mould cylinder main body 3
Cylinder connection, mould cylinder 3 a height of 50mm of main body, internal diameter is 50mm.
Described mould cylinder main body 3 side is provided with dismounting preset slot 8, and dismounting preset slot is used to separate after the shaping of CA mortars
CA mortar molds, dismantle CA mortar specimens, dismounting preset slot and the centerline axis parallel of mould cylinder main body 3, and width range is
0.01-0.1mm。
The side middle part of mould cylinder main body 3 of described cylindrical type is provided with the injected hole 6 that internal diameter is 4-10mm, and injected hole 6 is used
The smooth injection moulding mould of CA mortars is mixed in new, the central axis of injected hole 6 is overlapped with the radial direction of mould cylinder main body 3.
The described side top of mould cylinder main body 3 is provided with lower steam vent 5 provided with upper air-vent 4, side lower section, for pouring
The air drained during note in mould, is smoothed out to pour into a mould.Two steam vent central axis are symmetrically located at injected hole 6
Central axis both sides, the radial center axis of two steam vent central axis and mould cylinder main body 3 is overlapped, two steam vents it is interior
Footpath scope is 1-3mm.
The described side middle part of mould cylinder main body 3 is provided with and the mould cylinder close-connected slip casting compensating cylinder 7 of main body 3, slip casting
Compensating cylinder 7 can compensate for the undersize brought in CA mortar solidification process due to plastic shrinkage, and the internal diameter of slip casting compensating cylinder 7 is big
In the internal diameter of injected hole 6.Because the emulsifying agent in CA mortars has the effect of certain slow setting, thus CA mortar specimens are in solidification
During have certain plastic shrinkage.To solve in conventional test specimen manufacturing process to there is plastic shrinkage to cause the size of test specimen not
Stable characteristic, is improved to this defect.It is that 12-25mm, inside diameter ranges are 12-20mm in injected hole periphery plus a high scope
Slip casting compensating cylinder, the central axis of slip casting compensating cylinder 7 is overlapped with the central axis of injected hole 6.
The present invention use process be：Before CA mortar specimens are made, cylindrical type mould cylinder is closely connected with two die covers
Connect.New will mix CA mortars and be poured into slurry full of slip casting compensating cylinder 7 from injected hole 6, during slip casting in cylindrical type mould cylinder air from
Steam vent 4 and 5 is discharged.After after CA mortar curing moldings, removing die cover 1 and 2, open pre- dismounting and stay seam 8, by curing molding
CA mortar specimens take out.
The beneficial effects of the invention are as follows：Because the present invention is the cylindrical type CA mortar specimen moulds of two-sided closing, tool
Have the pattern on the surface of two die covers limitation test specimen, ensure that using die cover test specimen two end faces it is parallel and flat
It is whole.Both avoided test specimen load after shaping before end face polishing program waste time and energy, dimension wears, avoid again test it is compressed
Produced in journey in experiment root curved compression, the surface of test piece Stress relief for loading initial stage and result of the test is impacted, protect
It can still ensure the dimensional stability of test specimen while card surface of test piece flatness, improve the essence of CA mortar specimen mechanical tests
Degree.
Accompanying drawing and subordinate list explanation
Fig. 1 is the overall structure figure of the smooth mould of surface of test piece of the present invention；
Fig. 2 is front view of the present invention；
Fig. 3 is the top view of the present invention；
In figure：1 mold lid；2 times die covers；3 moulds cylinder main body；4 upper air-vents；5 times steam vents；6 injected holes；7 notes
Starch compensating cylinder；8 dismounting preset slots.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
The present invention includes cylindrical type mould cylinder main body 3, two ends die cover 1 and 2, provided with row in cylindrical type mould cylinder main body
Sawtooth is equipped with stomata 4 and 5, the slip casting compensating cylinder 7 of injected hole 6 and dismounting preset slot 8, two die covers.
The present invention has two die covers 1 and 2, is sleeve connection, circle between die cover 1 and 2 and cylindrical type mould cylinder main body 3
The column type mould cylinder a height of 50mm of main body, internal diameter is 50mm, sets dismounting preset slot in cylindrical type mould cylinder main body 3 side, dismounting is pre-
Seam 8 and the centerline axis parallel of cylindrical type mould cylinder main body 3 are stayed, width is that scope is 0.01-0.1mm.In cylindrical type mould cylinder
The side of main body 3 sets injected hole 6, and the central axis of injected hole 6 is radially overlapped with cylindrical type mould cylinder main body 3, the central axis of injected hole 6
Overlapped with the radial direction of mould cylinder main body 3, positioned at 1/2 eminence of cylindrical type mould cylinder main body 3, inside diameter ranges are 4-10mm.In circle
Column type mould cylinder main body 3 side sets steam vent 4 and 5, and the central axis of steam vent 4 and 5 is overlapped with the radial direction of mould cylinder main body 3, and
The central axis both sides of injected hole 6 are symmetrically positioned in, inside diameter ranges are 1-3mm.Slip casting compensation is set in cylindrical type mould cylinder main body 3 side
Cylinder 7, the central axis of slip casting compensating cylinder 7 is overlapped with the central axis of injected hole 6, and inside diameter ranges are 12-20mm, with cylindrical type mould cylinder
Main body 3 is closely connected.
Before CA mortar specimens are made, cylindrical type mould cylinder is closely connected with two die covers.CA mortars newly will be mixed from note
Slurry hole 6 is poured into slurry full of slip casting compensating cylinder 7, and air is discharged from steam vent 4 and 5 in cylindrical type mould cylinder during slip casting.Treat CA
After mortar curing molding, die cover 1 and 2 is removed, pre- dismounting is opened and stays seam 8, the CA mortar specimens of curing molding are taken out.Table 1
For existing mould is used with improving height of specimen size comparison's table after mould molding, as can be seen from Table 1 by existing die casting test specimen
Have the CA mortars section made and out-of-flatness, and because the sample dimensions that plastic shrinkage is caused are not enough, and made of the present invention
Die surface is very smooth, dimensionally stable.
The die casting test specimen of table 1. is with improving height of specimen size comparison's table after mould molding
Because the present invention is the cylindrical type CA mortar specimen moulds of two-sided closing, with two die cover limitation test specimens
Surface pattern.Utilize the position-limiting action of die cover, it is ensured that two end faces of test specimen it is parallel and smooth, both avoid examination
Part load after shaping before end face polishing program waste time and energy, dimensional loss, avoid again during compression test due to examination
In test specimen root generation flexural tensile stress and loading surface of test piece Stress relief at initial stage to examination caused by part surface irregularity
Test result to impact, improve the precision of CA mortar specimen mechanical tests.Ensure surface of test piece flatness and the size of test specimen
Stability, reduces production cost, improves efficiency, and application is more extensive.
Embodiment described above is only that the preferred embodiment of the present invention is described, and to the scope of the present invention
Provided, on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art are to technical scheme
In the various modifications made and improvement, the protection domain that claims of the present invention determination all should be fallen into.
Claims (8)
1. a kind of mould of guarantee CA mortar specimen planarizations, it is characterised in that described mould includes mold
Cover (1), lower die cover (2), mould cylinder main body (3)；Described mold lid (1), lower die cover are equipped with sawtooth, two on (2)
It is sleeve connection between individual die cover and mould cylinder main body (3)；Described mould cylinder main body (3) is cylindrical type, a height of 50mm of cylinder,
Internal diameter is 50mm；
Described mould cylinder main body (3) is sideways provided with dismounting preset slot (8), for the dismounting CA mortars examination after the shaping of CA mortars
Part, dismounting preset slot (8) and the centerline axis parallel of mould cylinder main body (3)；
Mould cylinder main body (3) the side middle part of described cylindrical type is provided with injected hole (6), injected hole (6) central axis and mould
The radial direction of cylinder main body (3) is overlapped；
Described mould cylinder main body (3) side top is provided with upper air-vent (4), and lower section is provided with lower steam vent (5), for pouring into a mould
The air drained in journey in mould；Two steam vent central axis are symmetrically positioned in injected hole (6) central axis both sides, and two
Individual steam vent central axis is overlapped with the radial direction of mould cylinder main body (3)；
Described mould tin main body (3) side middle part is provided with and mould cylinder main body (3) close-connected slip casting compensating cylinder (7), use
To compensate the undersize brought in CA mortar solidification process due to plastic shrinkage；Slip casting compensating cylinder (7) central axis and slip casting
Hole (6) central axis is overlapped.
2. a kind of mould ensured for testing CA mortar mechanical property test specimen planarizations according to claim 1,
Characterized in that, the width range of described dismounting preset slot (8) is 0.01-0.1mm.
3. a kind of shaping mould ensured for testing CA mortar mechanical property test specimen planarizations according to claim 1 or 2
Tool, it is characterised in that the inside diameter ranges of described injected hole (6) are 4-10mm.
4. a kind of shaping mould ensured for testing CA mortar mechanical property test specimen planarizations according to claim 1 or 2
Tool, it is characterised in that described upper air-vent (4) and the inside diameter ranges of lower steam vent (5) are 1-3mm.
5. a kind of mould ensured for testing CA mortar mechanical property test specimen planarizations according to claim 3,
Characterized in that, described upper air-vent (4) and the inside diameter ranges of lower steam vent (5) are 1-3mm.
6. a kind of guarantee according to claim 1 or 2 or 5 is used for the shaping for testing CA mortar mechanical property test specimen planarizations
Mould, it is characterised in that the inside diameter ranges of slip casting compensating cylinder (7) are 12-20mm, cylinder high scope is 12-25mm.
7. a kind of mould ensured for testing CA mortar mechanical property test specimen planarizations according to claim 3,
Characterized in that, the inside diameter ranges of slip casting compensating cylinder (7) are 12-20mm, cylinder high scope is 12-25mm.
8. a kind of mould ensured for testing CA mortar mechanical property test specimen planarizations according to claim 4,
Characterized in that, the inside diameter ranges of slip casting compensating cylinder (7) are 12-20mm, cylinder high scope is 12-25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710253016.7A CN107132104A (en) | 2017-04-18 | 2017-04-18 | It is a kind of to prepare the mould with planarization CA mortar specimens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710253016.7A CN107132104A (en) | 2017-04-18 | 2017-04-18 | It is a kind of to prepare the mould with planarization CA mortar specimens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107132104A true CN107132104A (en) | 2017-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710253016.7A Pending CN107132104A (en) | 2017-04-18 | 2017-04-18 | It is a kind of to prepare the mould with planarization CA mortar specimens |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202763986U (en) * | 2012-07-10 | 2013-03-06 | 国家钽铌特种金属材料工程技术研究中心 | Pressure slip casting mold for large-size ceramic target |
| CN204112604U (en) * | 2014-10-29 | 2015-01-21 | 赵虎 | The slip casting rebar connector of band cone tail |
| CN104677704A (en) * | 2015-01-22 | 2015-06-03 | 山东大学 | Large-diameter test block molding mould capable of prefabricating, and operating method of large-diameter test block molding mould |
| CN104999546A (en) * | 2014-04-27 | 2015-10-28 | 郑州大学 | Grouting concrete columnar test piece mold |
| CN105372412A (en) * | 2015-11-22 | 2016-03-02 | 合肥工业大学 | Polymer grouting pavement remediation simulation test die and test piece moulding method |
-
2017
- 2017-04-18 CN CN201710253016.7A patent/CN107132104A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202763986U (en) * | 2012-07-10 | 2013-03-06 | 国家钽铌特种金属材料工程技术研究中心 | Pressure slip casting mold for large-size ceramic target |
| CN104999546A (en) * | 2014-04-27 | 2015-10-28 | 郑州大学 | Grouting concrete columnar test piece mold |
| CN204112604U (en) * | 2014-10-29 | 2015-01-21 | 赵虎 | The slip casting rebar connector of band cone tail |
| CN104677704A (en) * | 2015-01-22 | 2015-06-03 | 山东大学 | Large-diameter test block molding mould capable of prefabricating, and operating method of large-diameter test block molding mould |
| CN105372412A (en) * | 2015-11-22 | 2016-03-02 | 合肥工业大学 | Polymer grouting pavement remediation simulation test die and test piece moulding method |
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Application publication date: 20170905 |
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