Sample preparation device for quantitative analysis of metal elements

Abstract

The utility model provides a sample preparation device for quantitative analysis of metal elements, which comprises a grinding and polishing device, a sample mold and a rotary workbench, the grinding and polishing device comprises a force adjusting assembly and a grinding and polishing main body which are connected with each other, the grinding and polishing main body is arranged above the sample mold, and the rotary workbench is arranged above the sample mold. The sample mold is placed on the rotary workbench; the grinding and polishing body comprises a fixing disc, a positioning base plate and a liquid supply assembly, the positioning base plate is arranged on the surface of the side, close to the sample mold, of the fixing disc, grinding abrasive paper and a plurality of spraying openings are arranged on the surface of the positioning base plate, and the spraying openings are evenly formed in the periphery of the grinding abrasive paper in the circumferential direction; the liquid supply assembly communicates with the spraying opening and is used for providing cooling liquid. The device can be used for manufacturing large-size flaky samples, is easy to operate, and simplifies the sample preparation process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to metal alloy detection technical field relates to a sample preparation device for metal element quantitative analysis. BACKGROUND

[0002] At present, in the industrial casting process, the metal element quantitative analysis and detection of ingot is a conventional quality control means, which has the advantages of high sensitivity and fast analysis speed. Preparing the test sample is an important part of the metal element quantitative analysis and detection process. The traditional operation is to obtain the test sheet by sawing the ingot, and then to obtain the test sheet with smooth surface by turning. However, due to the use of polishing equipment, only small size samples can be processed, or the large sheet needs to be divided into small samples for polishing, resulting in a complex preparation process.

[0003] CN112313494A discloses a device for preparing a sheet sample, which includes a base for placing a sheet sample thereon and a cutting punch for cutting a shear crack or sharp notch on the sheet sample. The cutting punch includes an inclined lower end and / or a central vertical groove, which allows direct cutting of the sample without forming a crack through cyclic loading. Compared with conventional devices, the preparation of the sheet sample takes less time. CN115165498A discloses a preparation method of a Cu-containing antibacterial stainless steel transmission electron microscope sample, which includes the steps of cutting a sheet sample, polishing the sample, preparing a round sheet sample, preparing an electrolyte, electrolytic double spraying of the round sheet sample, and cleaning the round sheet sample. The double spraying electrolyte is composed of 800-1200mL of anhydrous ethanol, 60mL-80mL of 70.0%-72.0% concentrated perchloric acid, and 8-12mL of methyl acetate. A large-area thin area transmission electron microscope sample of Cu-containing antibacterial stainless steel is successfully prepared.

[0004] However, the existing lathe polishing process needs a large amount of alcohol for cooling, which also causes a large amount of material loss. In addition, the sheet needs to be cut and polished, which is time-consuming and laborious, and reduces the work efficiency. Therefore, how to simplify the sample preparation process is very important for realizing rapid element analysis and detection. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a sample preparation device for metal element quantitative analysis, which is simple to operate, can quickly and conveniently prepare large-size samples, and ensures that the samples have sufficient flatness, and improves the preparation efficiency.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a sample preparation device for metal element quantitative analysis, sample preparation device including polishing device, sample mould and rotary work table, the polishing device includes the force degree adjusting assembly and the polishing main part who connects each other, the polishing main part sets up in the top of sample mould, the sample mould places on the rotary work table, the polishing main part includes fixed disc, positioning base plate and liquid supply component, the positioning base plate sets up in the one side surface of fixed disc close to sample mould, the surface of positioning base plate is provided with sanding paper and a plurality of spray ports, a plurality of spray ports evenly set along sanding paper periphery circumference, liquid supply component communicates spray port, is used for providing coolant.

[0008] The utility model discloses a sample mould is loaded with the sample to be tested, need not to carry out the segmentation, can directly fast, conveniently carry out the operation of adding to obtain the sample of smooth and even, utilize sandpaper polishing to replace the traditional turning process, greatly reduce the material loss, and through the force degree adjusting assembly adjustment sandpaper and the contact force degree between the sample to be tested, facilitate the removal saw mark, adopt the cooling liquid to radiate heat simultaneously, and the sample surface stain is washed away, is favorable to improve the appearance quality of the sample prepared.

[0009] As an optimal technical scheme of the utility model, the force degree adjusting assembly includes a fixed base and an adjusting rod, one end of the adjusting rod is drivingly connected to the fixed base, and the other end of the adjusting rod is fixedly connected to the fixed disc; at least two limiting grooves are formed in the side surface of the fixed base close to the fixed disc; at least two protective baffles are arranged on the rotary work table, the protective baffles correspond to the limiting grooves one by one, and the limiting grooves are used for clamping the protective baffles.

[0010] The utility model utilizes the limiting groove to clamp the protective baffle, realizes the relative fixation of the fixed base and the rotary work table, avoids the relative rotation of the fixed disc, influences the polishing effect, and guarantees the stability of the polishing operation.

[0011] As an optimal technical scheme of the utility model, the adjusting rod includes a screw rod, the screw rod penetrates through the fixed base, and is threadedly connected to the center of the fixed base.

[0012] As an optimal technical scheme of the utility model, the rotary work table further includes a control host and a bearing base, a rotor is arranged on the bearing base, the control host is used for driving the rotor to rotate, and the sample mould is placed on the surface of the rotor.

[0013] In the use process, the fixed disc remains unmoved, the sample mould is driven to rotate by the rotor, the sample to be tested in the sample mould is further rotated, and the sample to be tested is rubbed with the sanding paper on the fixed disc, so that the polishing effect is achieved.

[0014] As an optimal technical scheme of the utility model, at least two protection baffle are evenly arranged along the circumference of the bearing base, the height of the protection baffle is greater than the height of the bearing base, and the side surface of the protection baffle close to the bearing base is provided with a sliding rail groove;The outer peripheral wall of the fixed disc is provided with at least two limiting sliding blocks, the limiting sliding blocks correspond to the protection baffles one by one, and the limiting sliding blocks are also slidably connected to the sliding rail groove.

[0015] The utility model discloses through the interaction of limiting sliding block and sliding rail groove, prevent the relative movement of fixed disc, further promote the stability of polishing operation.

[0016] As an optimal technical scheme of the utility model, the surface of the bearing base is also provided with a sewage outlet;The sewage pipe is arranged in the control host, and the sewage pipe is connected with the sewage outlet.

[0017] The utility model discloses that the cooling liquid after use is discharged by the sewage pipe, not only guarantees the heat dissipation effect, but also avoids the problem of cooling liquid overflow and equipment damage.

[0018] As an optimal technical scheme of the utility model, the sample mold is provided with a plurality of fastening assemblies.

[0019] As an optimal technical scheme of the utility model, the fastening assembly includes a fixed screw.

[0020] The utility model utilizes the fixed screw to effectively fix the sample to be tested, avoids the sample to be tested from falling off from the sample mold in the rotating process.

[0021] As an optimal technical scheme of the utility model, the cross section of the sample mold is circular or rectangular.

[0022] As an optimal technical scheme of the utility model, the liquid supply assembly includes a cooling conduit, and the cooling conduit penetrates the fixed disc and is connected with a plurality of spray openings respectively.

[0023] Compared with the prior art, the utility model has the beneficial effects that:

[0024] The utility model provides a sample preparation device for quantitative analysis of metal elements, simple structure, easy operation, simplify the preparation process of large size sample, improve work efficiency, and significantly reduce material waste, improve material utilization, also reduce manufacturing cost. ACCURACY

[0025] Figure 1 The structure schematic view of the sample preparation device for quantitative analysis of metal elements provided by the utility model embodiment 1.

[0026] Figure 2The structure schematic view of the fixed disc provided for the embodiment 1 of the utility model.

[0027] Figure 3 The structure schematic view of the bearing base provided for the embodiment 1 of the utility model.

[0028] Wherein, 1 - sample mold;2 - fixed screw;3 - to be tested sample;4 - fixed disc;6 - positioning base plate;7 - polishing sandpaper;8 - spray port;9 - cooling conduit;10 - limit sliding block;11 - fixed base;12 - screw;13 - limit slot;14 - control host computer;15 - bearing base;16 - rotor;17 - protection baffle;18 - slide rail groove;19 - blowdown;20 - blowdown pipeline. DETAILED DESCRIPTION

[0029] It should be understood that, in the description of the utility model, the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of", "several" is two or more than two.

[0030] It should be noted that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0031] The technical scheme of the utility model will be further illustrated below by combining the drawings and through specific embodiments.

[0032] In one specific embodiment, the utility model provides a kind of sample preparation device for quantitative analysis of metal elements, including polishing device, test sample mold and rotating workbench.The polishing device includes mutually connected force adjustment assembly and polishing main body, and the force adjustment assembly is used to adjust the height of the polishing main body, to realize the adjustment of polishing force.The polishing main body is arranged above the test sample mold, and the test sample mold is used to contain test sample, and the test sample mold is placed on the rotating workbench, and the rotating workbench is used to drive the test sample mold with test sample to rotate.The polishing main body includes fixed disc, positioning base plate and liquid supply component, the positioning base plate is arranged on the surface of the fixed disc close to the test sample mold, the surface of the positioning base plate is provided with polishing sandpaper and a plurality of spray ports, the polishing sandpaper is used to polish test sample in test sample mold, and a plurality of spray ports are evenly arranged along the circumference of the polishing sandpaper, and the liquid supply component is connected with the spray port, to provide cooling liquid to cool test sample, reduce the friction between polishing sandpaper and test sample, and wash off the dirt on its surface.

[0033] The utility model does not make specific limitation to the type of polishing sandpaper, and diamond sandpaper known in the art can be used, and the mesh of polishing sandpaper can be adjusted according to actual conditions, such as 200 mesh, 400 mesh, 600 mesh, 800 mesh or 1000 mesh. In addition, the polishing sandpaper can be fixed on the positioning base plate by adhesion or clamping commonly used in the art.

[0034] In some embodiments, the force adjustment assembly includes a fixed base and an adjusting rod, one end of the adjusting rod is drivingly connected to the fixed base, and the other end is fixedly connected to the fixed disc, to adjust and control the force between polishing sandpaper and test sample, and facilitate the removal of saw marks. Specifically, the adjusting rod includes a screw rod, the screw rod penetrates the fixed base and is threadedly connected to the center of the fixed base, to adjust the distance between the fixed disc and test sample. At least two limiting grooves are formed in the surface of the side of the fixed base close to the fixed disc, at least two protective baffles are arranged on the rotating workbench, the protective baffles correspond to the limiting grooves one by one, the limiting grooves are used to clamp the protective baffles, to lock the fixed base and the rotating workbench.

[0035] In some embodiments, the rotating workbench further comprises a control host and a bearing base, the bearing base is provided with a rotor, the control host is used to drive the rotor to rotate, and the sample mold is placed on the surface of the rotor. The control host is also used to adjust the rotating speed of the rotor, and the rotating speed is controlled at 600-700 r / min to prepare a sample with smooth and flat appearance. It should be noted that the control host necessarily includes necessary connecting lines, shafts, motors, fasteners, switch buttons, rotating speed control consoles and adjustment buttons to realize the complete process. Those skilled in the art can add layouts on their own based on the process flow and equipment structure selection, and the utility model does not make special requirements and specific limitations thereon.

[0036] In some embodiments, at least two protective baffle plates are uniformly arranged along the circumference of the bearing base, the height of the protective baffle plate is greater than the height of the bearing base, the side surface of the bearing base is provided with a sliding rail groove, the outer circumferential wall of the fixed disc is provided with at least two limiting sliding blocks, the limiting sliding blocks correspond to the protective baffle plates one by one, and the limiting sliding blocks are also connected to the sliding rail groove. The utility model realizes primary limiting through the clamping effect of the limiting groove on the fixed base and the protective baffle plate on the circumference of the bearing base, realizes secondary limiting through the interaction of the limiting sliding block on the fixed disc and the sliding rail groove on the protective baffle plate, so that the fixed disc can only move axially along the sliding rail groove, the circumferential rotation of the fixed disc with the sample mold is avoided, and the stability of the grinding and polishing operation is ensured.

[0037] Further, the surface of the bearing base is also provided with a sewage outlet, the control host is provided with a sewage pipeline, and the sewage pipeline is connected to the sewage outlet. In order to improve the grinding and polishing effect, the utility model needs to adjust the cooling liquid supply flow of the liquid supply assembly according to the actual situation in the application process, and continuously inject cooling liquid between the polishing sandpaper and the sample to be tested for cooling, and at the same time, the used cooling liquid is discharged from the sewage outlet into the sewage pipeline to avoid excessive or overflow of the cooling liquid. In addition, in order to improve the utilization rate of the cooling liquid, the cooling liquid in the sewage pipeline can be post-treated to filter out impurities in the cooling liquid and cool down, and then reused after meeting the requirements.

[0038] In some embodiments, the sample mold is provided with a plurality of fastening assemblies for fixing the sample to be tested to avoid falling off. Specifically, the fastening assembly comprises a fixed screw. The sample mold adopted by the utility model has strong adaptability and does not require the size and shape of the sample to be tested, so that large-size samples can be quickly and conveniently processed. The cross section of the sample mold is circular or rectangular. The shape of the sample to be tested can be sheet-shaped or block-shaped, and the sample does not need to be cut or turned in advance, which greatly simplifies the pretreatment operation.

[0039] Specifically, in order to successfully discharge the cooling liquid on the surface of the sample to be tested into the discharge port, a through hole is formed in the bottom surface of the sample mold, or the sample mold has a structure that is through from top to bottom, and those skilled in the art can adjust according to actual needs. The material of the sample mold is not specifically limited, and stainless steel, aluminum alloy, copper alloy and the like commonly used by those skilled in the art can be used.

[0040] In some embodiments, the liquid supply assembly includes a cooling conduit that penetrates the fixing disc and is respectively communicated with a plurality of spray ports for spraying cooling liquid to the plurality of spray ports. Specifically, the cooling liquid can be alcohol and / or water commonly used by those skilled in the art, which can not only play a role in heat dissipation and cooling, but also play a role in washing the stains on the surface of the sample to be tested. It should be noted that the liquid supply assembly also necessarily includes necessary connecting pipelines, on-off control valves, general pump equipment, and cooling liquid storage containers for realizing the integrity of the process, and the present application does not make special limitations thereon. Those skilled in the art need to reasonably adjust, add or delete according to actual production needs.

[0041] Further, in order to improve the utilization rate of the cooling liquid, the liquid supply assembly can also be connected to the blowdown pipeline of the rotary workbench to recycle the used cooling liquid. A filter assembly and a heat exchange assembly commonly used in the art are also provided between the liquid supply assembly and the blowdown pipeline, the filter assembly is used to filter out impurities in the cooling liquid, and the heat exchange assembly is used to cool the cooling liquid.

[0042] Example 1

[0043] The present embodiment provides a sample preparation device for quantitative analysis of metal elements, as shown in Figure 1 The polishing device includes a force adjusting assembly and a polishing main body connected to each other. The polishing main body is arranged above the sample mold 1, the sample mold 1 is placed on the rotary workbench, the cross section of the sample mold 1 is circular, and the sample mold 1 is used to hold the sample to be tested 3. Two fixing screws 2 are arranged on the sample mold 1, which are used to fix the sample to be tested 3 from the opposite sides. As shown in Figure 2As shown, the polishing body comprises a fixed disc 4, a positioning base plate 6 and a liquid supply assembly. The positioning base plate 6 is arranged on the surface of the fixed disc 4 close to the sample mold 1. The surface of the positioning base plate 6 is provided with a polishing sandpaper 7 and a plurality of spray ports 8. The plurality of spray ports 8 are evenly arranged along the circumference of the polishing sandpaper 7. The liquid supply assembly comprises a cooling conduit 9. The cooling conduit 9 penetrates through the fixed disc 4 and is connected with the plurality of spray ports 8 respectively for supplying alcohol. The outer circumferential wall of the fixed disc 4 is further provided with four limiting sliding blocks 10 which are symmetrically arranged in pairs. The force adjusting assembly comprises a fixed base 11 and a screw rod 12. One end of the screw rod 12 penetrates through the fixed base 11 and is threadedly connected with the center of the fixed base 11. The other end of the screw rod 12 is fixedly connected with the fixed disc 4. The surface of the fixed base 11 close to the fixed disc 4 is provided with four limiting grooves 13 which are symmetrically arranged in pairs. Figure 3 As shown, the bearing base 15 is provided with a rotor 16. The control host 14 is used to drive the rotor 16 to rotate. The sample mold 1 is placed on the surface of the rotor 16. Four protective baffles 17 are arranged along the circumference of the bearing base 15. The height of the protective baffles 17 is greater than the height of the bearing base 15. The protective baffles 17 correspond to the limiting grooves 13 on the fixed base 11 one by one. The top of the protective baffles 17 can be clamped in the limiting grooves 13. The surface of the bearing base 15 is further provided with a slide rail groove 18 close to one side of the bearing base 15. The limiting sliding blocks 10 are further connected with the slide rail groove 18. The surface of the bearing base 15 is further provided with a sewage outlet 19. The control host 14 is provided with a sewage pipeline 20. The sewage pipeline 20 is connected with the sewage outlet 19.

[0044] The use process of the embodiment comprises the following steps. The to-be-tested ingot is placed in the sample mold 1 and is fixed by the fixing screw 2. The sample mold 1 provided with the to-be-tested ingot is placed on the rotor 16 on the bearing base 15. The limiting grooves 13 of the fixed base 11 are clamped on the protective baffles 17 to lock the fixed base 11 and the bearing base 15. The height of the fixed disc 4 is adjusted by the screw rod 12 so that the polishing sandpaper 7 contacts the to-be-tested ingot. The control host 14 is turned on to drive the rotor 16 to rotate so as to drive the sample mold 1 to rotate. The polishing sandpaper 7 and the to-be-tested ingot rub against each other. At the same time, the liquid supply assembly is used to inject alcohol into the spray ports 8 of the fixed disc 4 so as to cool the to-be-tested ingot, reduce the friction between the polishing sandpaper 7 and the to-be-tested ingot, and wash away the stains on the surface of the to-be-tested ingot. The alcohol containing stains is discharged from the discharge port to the sewage pipeline 20 and then is discharged from the preparation device.

[0045] The applicant declares that the above description is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. It should be understood by those skilled in the art that any changes or replacements within the technical scope disclosed by the present application can be easily thought out by those skilled in the art, and all of them fall within the protection scope and disclosure scope of the present application.

Claims

1. A sample preparation device for the quantitative analysis of a metal element, characterized in that The sample preparation device comprises a polishing device, a sample mold and a rotary workbench, the polishing device comprises a force adjusting assembly and a polishing main body connected with each other, the polishing main body is arranged above the sample mold, and the sample mold is placed on the rotary workbench. The polishing main body comprises a fixed disc, a positioning base plate and a liquid supply assembly, the positioning base plate is arranged on the side surface of the fixed disc close to the sample mold, the surface of the positioning base plate is provided with abrasive paper and a plurality of spray ports, the plurality of spray ports are evenly arranged along the circumference of the abrasive paper, and the liquid supply assembly is connected with the spray ports and used for supplying cooling liquid.

2. The sample preparation device for quantitative analysis of a metal element according to claim 1, characterized by, The force adjusting assembly comprises a fixed base and an adjusting rod, one end of the adjusting rod is transmissionally connected with the fixed base, and the other end of the adjusting rod is fixedly connected with the fixed disc. At least two limiting grooves are arranged on the side surface of the fixed base close to the fixed disc. At least two protective baffles are arranged on the rotary workbench, the protective baffles correspond to the limiting grooves in a one-to-one manner, and the limiting grooves are used for clamping the protective baffles.

3. The sample preparation device for quantitative analysis of a metal element according to claim 2, characterized by, The adjusting rod comprises a screw rod, the screw rod penetrates through the fixed base and is threadedly connected with the center of the fixed base.

4. The sample preparation device for quantitative analysis of a metal element according to claim 2, characterized by, The rotary workbench further comprises a control host and a bearing base, a rotor is arranged on the bearing base, the control host is used for driving the rotor to rotate, and the sample mold is placed on the surface of the rotor.

5. The sample preparation device for quantitative analysis of a metal element according to claim 4, characterized by, At least two protective baffles are arranged along the circumference of the bearing base, the height of the protective baffles is greater than the height of the bearing base, and a sliding rail groove is arranged on the side surface of the protective baffles close to the bearing base. At least two limiting sliding blocks are arranged on the outer circumferential wall of the fixed disc, the limiting sliding blocks correspond to the protective baffles in a one-to-one manner, and the limiting sliding blocks are further slidingly connected with the sliding rail groove.

6. The sample preparation device for quantitative analysis of a metal element according to claim 4, characterized by, A sewage discharge port is arranged on the surface of the bearing base. A sewage discharge pipeline is arranged in the control host and connected with the sewage discharge port.

7. The sample preparation device for quantitative analysis of a metal element according to claim 1, characterized by, The sample mold is provided with a plurality of fastening assemblies.

8. The sample preparation device for quantitative analysis of a metal element according to claim 7, characterized by, The fastening assembly comprises a fixed screw.

9. The sample preparation device for quantitative analysis of a metal element according to claim 1, characterized by, The cross section of the sample mold is circular or rectangular.

10. The sample preparation device for quantitative analysis of a metal element according to claim 1, characterized by, The liquid supply assembly comprises a cooling conduit, the cooling conduit penetrates through the fixed disc and is connected with a plurality of spray ports, respectively.

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