CN219830506U - Preparation device for analysis sample of failure fracture section of net-shaped and sheet-shaped material - Google Patents

Preparation device for analysis sample of failure fracture section of net-shaped and sheet-shaped material Download PDF

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Publication number
CN219830506U
CN219830506U CN202320939295.3U CN202320939295U CN219830506U CN 219830506 U CN219830506 U CN 219830506U CN 202320939295 U CN202320939295 U CN 202320939295U CN 219830506 U CN219830506 U CN 219830506U
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sample
connecting rod
panel
shaped
plate
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许天旱
鲁朋波
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Xian Shiyou University
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Xian Shiyou University
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Abstract

A preparation device of a net-shaped and sheet-shaped material failure fracture section analysis sample comprises a bending connecting rod, wherein the short end of the bending connecting rod is connected with a bottom plate through a bolt; the cover plate is positioned through a column platform of the bottom plate; the long end of the bending connecting rod is connected with the triangular connecting rod through a bolt; the stud bolt penetrates through the center hole of the triangular connecting rod to be connected with the disc, and the disc is driven to press the cover plate by rotating the stud bolt; a panel is arranged between the bottom plate and the cover plate, and an auxiliary plate is arranged above the panel; uniformly smearing glue on the surfaces of an auxiliary plate and a panel, placing a sample on the surface of the glued panel, placing the glued auxiliary plate on the surface of the sample, lightly pressing the upper and lower surfaces of the sample with the auxiliary plate and the panel by hands to bond the upper and lower surfaces of the sample with the auxiliary plate and the panel, and clamping the bonded whole of the sample in the middle through a cover plate and a bottom plate to flatten the original uneven sample; the method has the advantages of simplicity in operation, low cost, less time consumption and high test efficiency.

Description

Preparation device for analysis sample of failure fracture section of net-shaped and sheet-shaped material
Technical Field
The utility model belongs to the technical field of material analysis and testing, and particularly relates to a preparation device of a net-shaped and sheet-shaped material failure fracture section analysis sample, which is suitable for preparing net-shaped and sheet-shaped tensile fracture section analysis samples of various materials including metal materials, high polymer materials, ceramic materials and the like, and is particularly suitable for preparing tensile fracture section analysis samples of ductile copper nets, aluminum nets and the like.
Background
In material failure analysis, it is generally necessary to analyze failure mechanisms of materials, provide a basis for subsequent improvement of material properties, and observe the evolution of the subsurface structure of a failed fracture, including the presence or absence of secondary cracks, the relationship between the formation of secondary cracks and the structure, the degree of change of the structure, and the like.
For the analysis of common block materials, the problems are relatively easy, a section is usually manufactured by adopting a linear cutting mode or a mode of cutting along the central position perpendicular to a fracture, then a sample is inserted, the section is parallel to the surface of a sample body (namely, a sample which is completed by using powder inlay) during sample insertion, and the section of the sample is only required to be placed close to a sample insertion plane before sample insertion powder is placed.
However, it is difficult to analyze ductile net-like or sheet-like samples, and since many ductile net-like samples are very thin, e.g., hundreds of micrometers thick, soft in texture, and very difficult to produce cross sections, the insert is very difficult to complete even if the cutting is performed.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide a preparation device of a net-shaped and sheet-shaped material failure fracture section analysis sample, which is suitable for preparing net-shaped and sheet-shaped failure fracture section analysis samples of various materials including metal materials, high polymer materials, ceramic materials and the like, and is particularly suitable for preparing tensile fracture section analysis samples of ductile copper nets, aluminum nets and the like.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the preparation device for the analysis sample of the failure fracture section of the net-shaped and sheet-shaped material comprises a bending connecting rod, wherein the short end of the bending connecting rod is connected with a bottom plate through a bolt; the semi-cylindrical notch of the cover plate is positioned through the pylon of the bottom plate; the long end of the bending connecting rod is connected with the triangular connecting rod through a bolt; the stud bolt penetrates through the central bolt hole of the triangular connecting rod to be connected with the disc, and the disc is driven to press the cover plate by rotating the bolt; a panel is also arranged between the bottom plate and the cover plate, and an auxiliary plate is arranged above the panel.
The cover plate and the bottom plate are both regular triangles.
Each angle of the triangular connecting rod is connected with a bending connecting rod.
The triangular connecting rod is a regular triangular prism, and round holes are formed in the three edges of the triangular prism.
The thickness of the auxiliary plate is 0.5-0.8mm.
The thickness of the panel is 5-8mm.
The beneficial effects of the utility model are as follows:
the cover plate and the bottom plate are designed to be regular triangular prism structures, have enough rigidity, are stable and are not easy to deform in the process of clamping the sample, and the semi-cylindrical notch and the post stand are respectively arranged at the triangular position, so that the operation process before and after sample preparation is more convenient and stable.
Because the cover plate and the bottom plate clamp the adhered whole of the sample in the middle, the original uneven sample is flattened under the axial compression force of the stud bolts, so that the subsequent sample processing and analysis are facilitated.
According to the utility model, the vernier caliper is used for measuring the distance between the disc bolt and the triangular connecting rod, and the folded calculation is compared with the original thickness of the sample, so that the phenomenon that the appearance of the sample is seriously deformed due to overlarge compression force can be avoided.
The auxiliary plate, the sample and the panel are connected in an adhesive mode, so that the adhesive bonding strength is high, the auxiliary plate, the sample and the panel are kept stand at normal temperature for solidification and positioning to meet the bonding strength requirement, and the auxiliary plate, the sample and the panel are not de-bonded, reduced in strength or softened due to temperature and other reasons in the subsequent process.
The thickness of the panel is enough, and after finishing the sample insertion, the phenomenon of de-embedding can not occur in the process of grinding the sample.
The auxiliary plate has small thickness and good rigidity, and ensures that the time consumption in the process of grinding the sample is less, thereby reducing the workload.
The utility model can prepare the analysis sample of the failure fracture section of the net-shaped and sheet-shaped materials without cutting the sample. The cover plate and the bottom plate in the device are designed to be regular triangular prism structures, and compressive force is generated on the sample through the relative motion of the stud disc bolt and the triangular connecting rod, so that the device has the advantages of simplicity in operation, low cost, less time consumption and high test efficiency.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic illustration of the bonding of the samples of the present utility model.
Fig. 3 is a schematic structural diagram of the present utility model 1.
Fig. 4 is a schematic structural view of the cover plate 3 of the present utility model.
Fig. 5 is a schematic structural view of the base plate 4 of the present utility model.
Fig. 6 is a schematic structural view of the triangle link 6 of the present utility model.
In the figure: 1-bending connecting rod, 2-bolt, 3-cover plate, 4-bottom plate, 5-stud bolt, 6-triangle connecting rod, 7-disc, 8-auxiliary plate, 9-sample, 10-glue and 11-panel.
Detailed Description
The construction and operation of the device according to the utility model will now be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-2, the preparation of fracture profile specimens of mesh and sheet type materials was accomplished.
The bending connecting rod comprises a bending connecting rod 1, wherein the short end of the bending connecting rod 1 is connected with a bottom plate 4 through a bolt 2; the semi-cylindrical notch of the cover plate 3 is positioned through the pylon of the bottom plate 4; the long end of the bending connecting rod 1 is connected with a triangular connecting rod 6 through a bolt 2; the stud bolt 5 passes through a central threaded hole of the triangular connecting rod 6 to be connected with the disc 7, and the disc 7 is driven to press the cover plate 3 by rotating the stud bolt 5; a panel 11 is also arranged between the bottom plate 4 and the cover plate 3, and an auxiliary plate 8 is arranged above the panel 11.
The auxiliary plate 8 is adhered to the sample 9 by the glue 10, and the panel 11 is adhered to the sample 9 by the glue 10 to form an adhered whole; the cover plate 3 and the bottom plate 4 sandwich the bonded whole of the sample 9.
Each corner of the triangular connecting rod 6 is connected with a bending connecting rod 1.
The triangular connecting rod 6 is a regular triangular prism, and round holes are formed in the three edges of the triangular prism and are used for connecting the bent connecting rod 1.
The long end and the short end of the bending connecting rod 1 are respectively provided with a round hole, the cover plate 3 and the bottom plate 4 are respectively of regular triangular prism structural design, the triangular part of the cover plate 3 is respectively provided with a semi-cylindrical notch, the triangular part of the bottom plate 4 is respectively provided with a column base, and the semi-cylindrical notch of the cover plate 3 is positioned through the column base of the bottom plate 4, so that the operation process before and after sample preparation is more convenient and stable. The triangle department of triangle connecting rod 6 all is equipped with the round hole, and center department is equipped with the screw hole, and the long end of crooked connecting rod 1 is connected with triangle connecting rod 6 through bolt two, and stud disk bolt 5 drives disc 7 through the threaded connection of the center department of triangle connecting rod 6 and presses towards apron 3.
The working principle of the utility model is as follows:
observing the sample and intercepting a relatively flat sample 9, respectively and uniformly smearing glue 10 on the surfaces of an auxiliary plate 8 and a panel 11, placing the sample 9 on the surface of the panel 11 with the glue 10, placing the auxiliary plate 8 with the glue 10 on the surface of the sample 9, lightly pressing the auxiliary plate 8 with hands to bond the upper surface and the lower surface of the sample 9 with the auxiliary plate 8 and the panel 11, and clamping the bonded whole of the sample 9 in the middle through a cover plate 3 and a bottom plate 4, and flattening the original uneven sample 8 under the axial compression force of a stud bolt 5 so as to facilitate the subsequent sample treatment analysis. And the sample 9 and the panel 11 are prevented from being separated in the metallographic grinding process by standing at normal temperature to solidify and position so as to meet the requirement of bonding strength. The sample 9 is slowly clamped by using a socket spanner, the distance between the stud 5 and the triangular connecting rod 6 is measured by using a vernier caliper, the reduced calculation is compared with the original thickness of the sample 9, the standard is considered to be in accordance with the requirement in the error range, and the sample appearance is prevented from being seriously deformed due to overlarge compression force. Then, the connection of the stud bolts 5 is slowly loosened by using a socket wrench, the bonded and cured sample 9 is taken out, the auxiliary plate 8 is firstly polished by using sand paper by taking the panel 11 as a grip, and the broken tissue before the sample 9 is polished can be avoided. And (3) carrying out rough grinding, fine grinding and polishing on the sample 9, and finally carrying out observation and analysis on metallographic structure.

Claims (6)

1. The preparation device of the analysis sample of the failure fracture section of the net-shaped and sheet-shaped material is characterized by comprising a bending connecting rod (1), wherein the short end of the bending connecting rod (1) is connected with a bottom plate (4) through a bolt (2); the semi-cylindrical notch of the cover plate (3) is positioned through the pylon of the bottom plate (4); the long end of the bending connecting rod (1) is connected with the triangular connecting rod (6) through a second bolt; the stud bolt (5) passes through the central bolt hole of the triangular connecting rod (6) to be connected with the disc (7), and the disc (7) is driven to press the cover plate (3) by rotating the stud bolt (5); a panel (11) is also arranged between the bottom plate (4) and the cover plate (3), and an auxiliary plate (8) is arranged above the panel (11).
2. The preparation device of the analysis sample of the failure fracture section of the mesh-shaped and sheet-shaped material according to claim 1, wherein the cover plate (3) and the bottom plate (4) are both regular triangular prisms.
3. The preparation device of a failure fracture profile analysis sample of a net-shaped and sheet-shaped material according to claim 1, wherein each corner of the triangular connecting rod (6) is connected with a curved connecting rod (1).
4. The preparation device of the analysis sample of the failure fracture section of the mesh-shaped and sheet-shaped material according to claim 1, wherein the triangular connecting rod (6) is a regular triangular prism, and round holes are formed at the three edges of the triangular prism.
5. The device for preparing a sample for analysis of failure fracture profile of web and sheet type material according to claim 1, wherein the thickness of the auxiliary plate (8) is 0.5-0.8mm.
6. A device for preparing a sample for analysis of failure fracture profile of web and sheet type material according to claim 1, characterized in that the thickness of the panel (11) is 5-8mm.
CN202320939295.3U 2023-04-20 2023-04-20 Preparation device for analysis sample of failure fracture section of net-shaped and sheet-shaped material Active CN219830506U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320939295.3U CN219830506U (en) 2023-04-20 2023-04-20 Preparation device for analysis sample of failure fracture section of net-shaped and sheet-shaped material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320939295.3U CN219830506U (en) 2023-04-20 2023-04-20 Preparation device for analysis sample of failure fracture section of net-shaped and sheet-shaped material

Publications (1)

Publication Number Publication Date
CN219830506U true CN219830506U (en) 2023-10-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320939295.3U Active CN219830506U (en) 2023-04-20 2023-04-20 Preparation device for analysis sample of failure fracture section of net-shaped and sheet-shaped material

Country Status (1)

Country Link
CN (1) CN219830506U (en)

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