CN104006995B - Shaping method of specimen starched only by fiber for scanning microscopy environment - Google Patents
Shaping method of specimen starched only by fiber for scanning microscopy environment Download PDFInfo
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- CN104006995B CN104006995B CN201410231600.9A CN201410231600A CN104006995B CN 104006995 B CN104006995 B CN 104006995B CN 201410231600 A CN201410231600 A CN 201410231600A CN 104006995 B CN104006995 B CN 104006995B
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Abstract
The invention belongs to the microscopic test field of micro nanometer mechanics and fiber concrete, relate generally to a kind of fiber for scanning microscopy environment and only starch shaping method of specimen, be mainly characterized by upper mold and the base plate with laser engraving machine engraving with three Specimen Shapes；Successively the groove on base plate is filled up with cement paste, again fiber is placed on the groove surfaces being filled along the length direction of groove is parallel, upper mold is correspondingly placed on base plate, groove is filled up with cement paste, after maintenance a couple of days, present invention process is simple, operates safety, the invention has the beneficial effects as follows: the shape of (1) test specimen, size can designed, designed as required, there is diversified feature；(2) molding of test specimen need not pour standard specimen, saves manpower and materials, decreases energy resource consumption；(3) test piece mould can be used repeatedly, and with low cost；(4) degree of depth of manual control fiber, is more beneficial for the observation of scanning electron microscope.
Description
Technical field
The invention belongs to the microscopic test field of micro nanometer mechanics and fiber concrete, relate generally to a kind of fiber for scanning microscopy environment and only starch shaping method of specimen.
Background technology
Now, concrete research from simple macro property test, has turned to the research method that macroscopic view combines with microscopic test at leisure.In the microscopic test of fiber concrete, need to study the mechanism of action between fiber and cement mortar, thus analyze and draw the fiber contribution to concrete strength.In existing microscopic test method, reference block can be cut, obtain the size and dimension that experiment needs.Although this forming method ensure that original growth environment of test specimen, but owing to concrete is fragile material, and the size of the required test specimen of SEM experiment is less, so the process of cutting easily causes the destruction of material, the percent defective of test specimen is higher.And utilizing cutting machine excision forming test specimen, the geomery of test specimen and profile pattern also are difficult to be guaranteed, and the shape of test specimen can only be relatively easy.Owing to the depth of field of scanning electron microscope limits, the test specimen obtained also is difficult to guarantee to meet requirement of experiment.Molding standard specimen when, will also result in unnecessary waste of material.So need a kind of construction cost cheap, and safely and effectively shaping method of specimen.
Summary of the invention
It is an object of the invention to the deficiency existed for prior art, disclose a kind of fiber for scanning microscopy environment and only starch shaping method of specimen.
It is an object of the invention to be achieved through the following technical solutions, shaping method of specimen starched only by a kind of fiber for scanning microscopy environment, it is characterized in that, said method comprising the steps of:
(1) draw through CAD and meet the upper mold with three Specimen Shapes and the base plate figure that specimen size is required by the single-axis bidirectional micro mechanics measurement apparatus of SEM；On 4～6mm thick organic plastic plates, the upper mold of test specimen is carved by figure, the groove of test specimen in the corresponding upper mold of engraving on the organic plastics base plate of 2～4mm thickness with laser engraving machine；
(2) at upper mold and the composition surface of base plate and relevant surfaces brush oil, the cement paste being used for test specimen is filled up the groove on base plate, vibrate gently 15 ~ 20 times, leveling, repeats 2 to 3 times, is then placed on the groove surfaces being filled by being used for the fiber of test specimen along the length direction of groove is parallel, again upper mold is correspondingly placed on base plate, both sides clip fixes base plate and upper mold, stands half an hour, waits cement paste initial set；
(3) it is again stirring for the cement paste for test specimen of identical match ratio, the groove of upper mold is filled up, vibrate gently 15 ~ 20 times, leveling, repeat 2 ~ 3 times, until surface of test piece is smooth, form removal after 24 hours, take out after maintenance to 28 day；
(4) position in face, labeled fibers place, cuts an osculum at the position hacksaw needing test specimen to rupture, and forms stress and concentrates, it is ensured that test specimen fracture position, waits for uniaxial tensile test.
The degree of depth of described base plate upper groove is 0.5 ~ 1mm.
Described cement paste is common clean slurry or modified clean slurry, it is possible to be added as needed on appropriate amount of quartz sand.
Described fiber is basalt fibre or plastic-steel fabric.
Specimen Shape in described upper mold and base plate according to need depending on.
Present invention process is simple, operates safety, the invention has the beneficial effects as follows: the shape of (1) test specimen, size can designed, designed as required, there is diversified feature；(2) molding of test specimen need not pour standard specimen, saves manpower and materials, decreases energy resource consumption；(3) test piece mould can be used repeatedly, and with low cost；(4) degree of depth of manual control fiber, is more beneficial for the observation of scanning electron microscope.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Fig. 2 is the sectional structure schematic diagram in the A-A direction of Fig. 1；
Fig. 3 is the decomposition texture schematic diagram of base plate in the present invention, fiber and upper mold position；
Fig. 4 is the structural representation in the present invention after test specimen cutting osculum；
In figure, 1 upper mold, 2 base plates, 3 fibers, 4 clips, 5 grooves, 6 little otch, 7 test specimens, 8 grooves.
Detailed description of the invention
Embodiment 1
Carve upper mold 1 as shown in Figure 1, 2 and base plate 2, at the surface of upper mold 1 and base plate 2 brush oil, weigh 500g cement and 150ml water NJ-160A starches blender stirring only, it is set to automatic stirring, fill up the groove 5 on base plate 2 with cement paste after having stirred, vibrate gently 20 times, leveling, it is repeated 2 times, it is placed on, by parallel along piece lengths direction for basalt fibre 3, groove 5 surface being filled, mould 1 is put correspondence position on a base plate 2, fixes base plate 2 and upper mold 1 with clip 4, stand half an hour, wait cement paste initial set；It is again stirring for the cement paste of identical match ratio, the groove 8 of upper mold 1 is filled up, vibrate gently 20 times, leveling, it is repeated 2 times, until surface of test piece is smooth, form removal after 24 hours, take out after maintenance to 28 day；The position in face, labeled fibers 3 place, cuts a little otch 6 at the position hacksaw needing test specimen 7 to rupture, and forms stress and concentrates, it is ensured that test specimen 7 fracture position, waits for uniaxial tensile test.
Embodiment 2
Carve upper mold 1 and base plate 2 as shown in Figure 1, 2, at surface brush oil, weigh 500g cement and 148ml water NJ-160A starches blender stirring only, it is set to automatic stirring, fill up the groove 5 on base plate 2 with clean slurry after having stirred, vibrate gently 20 times, leveling, it is repeated 2 times, it is placed on, by parallel along piece lengths direction for plastic-steel fabric 3, groove 5 surface being filled, upper mold 1 is put correspondence position on a base plate 2, fixes base plate 2 and upper mold 1 with clip 4, stand half an hour, wait cement paste initial set；It is again stirring for the cement paste of identical match ratio, the groove 8 of upper mold 1 is filled up, vibrate gently 20 times, leveling, it is repeated 2 times, until test specimen 7 surfacing, form removal after 24 hours, takes out after maintenance to 28 day；The position in face, labeled fibers 3 place, cuts a little otch 6 at the position hacksaw needing test specimen 7 to rupture, and forms stress and concentrates, it is ensured that test specimen 7 fracture position, waits for uniaxial tensile test.
Claims (5)
1. a shaping method of specimen starched only by the fiber for scanning microscopy environment, it is characterized in that, said method comprising the steps of:
(1) draw through CAD and meet the upper mold with three Specimen Shapes and the base plate figure that specimen size is required by the single-axis bidirectional micro mechanics measurement apparatus of SEM；On 4～6mm thick organic plastic plates, the upper mold of test specimen is carved by figure, the groove of test specimen in the corresponding upper mold of engraving on the organic plastics base plate of 2～4mm thickness with laser engraving machine；
(2) at upper mold and the composition surface of base plate and relevant surfaces brush oil, the cement paste being used for test specimen is filled up the groove on base plate, vibrate gently 15 ~ 20 times, leveling, repeats 2 to 3 times, is then placed on the groove surfaces being filled by being used for the fiber of test specimen along the length direction of groove is parallel, again upper mold is correspondingly placed on base plate, both sides clip fixes base plate and upper mold, stands half an hour, waits cement paste initial set；
(3) it is again stirring for the cement paste for test specimen of identical match ratio, the groove of upper mold is filled up, vibrate gently 15 ~ 20 times, leveling, repeat 2 ~ 3 times, until surface of test piece is smooth, form removal after 24 hours, take out after maintenance to 28 day；
(4) position in face, labeled fibers place, cuts an osculum at the position hacksaw needing test specimen to rupture, and forms stress and concentrates, it is ensured that test specimen fracture position, waits for uniaxial tensile test.
Shaping method of specimen starched only by fiber for scanning microscopy environment the most according to claim 1, it is characterized in that, the degree of depth of described base plate upper groove is 0.5 ~ 1mm.
Shaping method of specimen starched only by fiber for scanning microscopy environment the most according to claim 1, it is characterized in that, described cement paste is common clean slurry or modified clean slurry.
Shaping method of specimen starched only by fiber for scanning microscopy environment the most according to claim 1, it is characterized in that, described fiber is basalt fibre or plastic-steel fabric.
Shaping method of specimen starched only by fiber for scanning microscopy environment the most according to claim 1, it is characterized in that, the Specimen Shape in described upper mold and base plate according to need depending on.
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| CN201410231600.9A CN104006995B (en) | 2014-05-29 | 2014-05-29 | Shaping method of specimen starched only by fiber for scanning microscopy environment |
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| CN201410231600.9A CN104006995B (en) | 2014-05-29 | 2014-05-29 | Shaping method of specimen starched only by fiber for scanning microscopy environment |
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| CN104006995A CN104006995A (en) | 2014-08-27 |
| CN104006995B true CN104006995B (en) | 2016-09-28 |
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| CN108680591A (en) * | 2018-04-18 | 2018-10-19 | 山东建筑大学 | A kind of preparation method of gypsum scanning electron microscope sample |
| CN110487715B (en) * | 2019-08-23 | 2022-05-27 | 淮阴工学院 | High-ductility cement-based material single fiber pulling-out test device and test method |
| CN110530722B (en) * | 2019-10-15 | 2022-05-10 | 淮阴工学院 | High-ductility cement-based material uniaxial tension die, test piece manufacturing method and test method |
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| JPS5843686B2 (en) * | 1980-04-15 | 1983-09-28 | 正治 福江 | Method and device for measuring soil tensile strength |
| JPH06114901A (en) * | 1992-10-07 | 1994-04-26 | Japan Steel Works Ltd:The | Injection molding method for plastic tension test piece and mold thereof |
| JPH08304250A (en) * | 1995-05-11 | 1996-11-22 | Bando Chem Ind Ltd | Method for performing fatigue test on composite rubber material and test piece used for it |
| CN101571462B (en) * | 2009-05-22 | 2011-04-27 | 苏州禾盛新型材料股份有限公司 | Sample mould for predicting heat sealing performance of modified plastics |
| CN202471481U (en) * | 2012-02-29 | 2012-10-03 | 江苏新誉重工科技有限公司 | Mould for preparing adhesive extension test standard sample |
| CN102636389B (en) * | 2012-03-31 | 2015-07-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for detecting integrally breaking force for steel wire rope |
| CN203337435U (en) * | 2013-06-08 | 2013-12-11 | 青岛理工大学 | Axial tension test piece mould of concrete |
| CN203350097U (en) * | 2013-08-07 | 2013-12-18 | 北京建筑大学 | Die for manufacturing concrete direct-extension test piece |
| CN203534877U (en) * | 2013-10-22 | 2014-04-09 | 葛洲坝集团试验检测有限公司 | Mould for preparing test piece for tensile test of concrete |
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