Metallographic sample preparation equipment

Abstract

The utility model relates to metallographic sample preparation equipment. Comprising a sample preparation device, a spray head is arranged on the sample preparation device, the purification mechanism comprises a water collecting tank, a solution inlet and a solution outlet are formed in the two ends of the water collecting tank respectively, the solution inlet is connected with a liquid outlet of the sample preparation device, and the solution outlet is connected with the spray head. The interior of the water collecting tank is divided into a plurality of settling areas, the settling areas are sequentially distributed in the direction from the solution inlet to the solution outlet, every two adjacent settling areas are communicated, and an electromagnet is arranged in at least one settling area. The sample preparation device is connected with the water collecting tank, flushing fluid is sequentially settled in the settling area of the water collecting tank, the electromagnet in the settling area can effectively remove fine scrap iron in the solution, and purified water can be recycled, so that water resources are recycled.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical technology, and in particular to a metallographic sample preparation device. Background Technology

[0002] In the metallurgical industry, metallographic analysis is generally performed on different types of hot-rolled or cold-rolled finished products. This analysis assesses internal defects by examining grain size, non-metallic inclusions, and microstructure. Before metallographic testing, metallographic sample preparation is necessary. The most common metallographic sample preparation equipment includes metallographic polishing machines and metallographic mounting machines. During sample preparation, water washing is required for cooling and lubrication, while also flushing away waste generated during sample preparation to prevent clogging and equipment damage. However, with the increasing volume of metallographic tests, iron filings generated in a short time enter the drainage pipes with the water source and are difficult to remove, easily causing drainage pipe blockage. This not only makes it difficult to continue the sample preparation process but also pollutes the surrounding environment. Furthermore, the discharge of wastewater containing a large amount of iron filings affects subsequent wastewater treatment. Existing metal sample preparation equipment uses filter paper or a filter screen to filter the discharged liquid to remove iron filings. Over time, the amount of iron filings deposited on the filter paper or screen increases, requiring frequent cleaning or replacement to maintain filtration efficiency, thus affecting the efficiency of metallographic sample preparation. Therefore, there is an urgent need for metallographic sample preparation equipment to solve the above problems. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a metallographic sample preparation device, including a sample preparation apparatus equipped with a nozzle and a purification mechanism. The purification mechanism includes a water collection tank with a solution inlet and a solution outlet at each end. The solution inlet is connected to the drain port of the sample preparation apparatus, and the solution outlet is connected to the nozzle. The water collection tank is divided into multiple sedimentation zones, which are sequentially distributed along the direction from the solution inlet to the solution outlet. Each pair of adjacent sedimentation zones is connected, and at least one sedimentation zone is equipped with an electromagnet.

[0004] Furthermore, the water collection tank is provided with multiple baffles, and the water collection tank cavity is divided into multiple sedimentation zones by the multiple baffles.

[0005] Furthermore, some of the water baffles are first water baffles, and the rest are second water baffles. Each first water baffle and each second water baffle is arranged alternately along the solution inlet to the solution outlet direction. Each first water baffle is connected to the bottom of the water collection tank, and each second water baffle is connected to the cover plate of the water collection tank. The gap between the first water baffle and the cover plate of the water collection tank forms an overflow port, and the gap between the second water baffle and the bottom of the water collection tank forms a communication port.

[0006] Furthermore, the height of each overflow outlet decreases sequentially along the direction from the solution inlet to the solution outlet.

[0007] Furthermore, the height of each of the aforementioned connecting ports decreases sequentially along the direction from the solution inlet to the solution outlet.

[0008] Furthermore, the purification mechanism also includes a water storage tank, the inlet end of which is connected to the solution outlet of the water collection tank, and the outlet end of which is connected to the nozzle via a pipe.

[0009] Furthermore, a filter screen is provided at the solution outlet.

[0010] Furthermore, the purification mechanism also includes a buffer tank, which is disposed on the side of the water collection tank near the solution inlet. The buffer tank is connected to the solution inlet, and the inlet end of the buffer tank is connected to the drain port of the sample preparation device.

[0011] Furthermore, a guide plate is provided inside the buffer tank. The guide plate is inclined and connected to the lower part of the inlet end of the buffer tank. The height of the end of the guide plate connected to the buffer tank is lower than the height of the other end.

[0012] Furthermore, an electromagnet is provided in the sedimentation zone near the solution outlet.

[0013] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0014] 1) The metallographic sample preparation equipment provided by this utility model has a sample preparation device connected to a water collection tank. The solution carrying iron filings after rinsing the sample preparation device can enter the water collection tank and settle sequentially in the sedimentation zone of the water collection tank. The sedimentation zone is also equipped with an electromagnet, which can effectively remove fine iron filings from the solution. The purified water can be recycled, thereby realizing the recycling and reuse of water resources. Compared with using filter paper to filter the discharged liquid, using a water collection tank to purify the discharged liquid can extend the cleaning time interval of the water collection tank while removing iron filings, thus improving the working efficiency of the sample preparation device.

[0015] 2) The metallographic sample preparation equipment provided by this utility model adopts a first baffle plate and a second baffle plate arranged alternately. The first baffle plate is connected to the bottom of the water collection tank and the second baffle plate is connected to the top of the water collection tank. This can ensure that after the water flows normally, it must be forced to overflow from the bottom gap to the next sedimentation zone. Forced overflow can ensure that more iron filings settle to the bottom of the water collection tank in advance, thus accelerating the sedimentation efficiency.

[0016] 3) The metallographic sample preparation equipment provided by this utility model has a progressively decreasing distance between the second baffle and the bottom of the water collection tank, which can reduce the probability of iron filings clogging the connection port and ensure the normal operation of the water collection tank. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the metallographic sample preparation equipment provided by this utility model;

[0019] Figure 2 A schematic diagram of the purification mechanism in the metallographic sample preparation equipment provided by this utility model.

[0020] 1-Sample preparation device; 11-Nozzle; 12-Drain outlet; 13-First pipe; 14-Second pipe; 15-Boost pump; 2-Purification mechanism; 21-Water collection tank; 211-Solution inlet; 212-Solution outlet; 213-Filter screen; 22-Electromagnet; 23-First baffle; 24-Second baffle; 25-Water storage tank; 251-Replenishment pipe; 252-Level gauge; 26-Buffer tank; 261-Guide plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. In the accompanying drawings, the dimensions and relative dimensions of certain parts may be enlarged for clarity.

[0022] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "connected" should be interpreted broadly. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] In the description of this utility model, terms such as "upper", "lower", "left", "right", "front", and "rear" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, in the description of this utility model, the terms "first" and "second" are used merely for descriptive distinction and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Additionally, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0025] As per the instruction manual Figure 1 and 2 As shown, this utility model provides a metallographic sample preparation device, including a sample preparation device 1, which is equipped with a nozzle 11, and a purification mechanism 2. The purification mechanism includes a water collection tank 21, with a solution inlet 211 and a solution outlet 212 at both ends of the water collection tank 21. The solution inlet 211 is connected to the drain port 12 of the sample preparation device 1, and the solution outlet 212 is connected to the nozzle 11. The water collection tank 21 is divided into multiple sedimentation zones, which are distributed sequentially along the direction from the solution inlet 211 to the solution outlet 212. Each pair of adjacent sedimentation zones is connected, and at least one sedimentation zone is equipped with an electromagnet 22.

[0026] Preferably, the electromagnet 22 is magnetic after being energized, and can adsorb iron filings in the solution. An electromagnet 22 is installed in the sedimentation zone near the solution outlet 212, and other sedimentation zones can be equipped with electromagnets 22 as needed. Placing an electromagnet 22 in the last sedimentation zone can adsorb fine iron filings that have not been precipitated, ensuring that the iron filings content in the discharged solution is within a set range. Simultaneously, since the iron filings have already precipitated in the preceding sedimentation zones, the adsorption requirements on the electromagnet 22 are reduced, extending its service life.

[0027] Specifically, in metallographic sample preparation, the workpiece is processed using sample preparation equipment. The resulting rinsing liquid containing iron filings enters the purification mechanism 2 to remove the iron filings and other impurities. The treated rinsing liquid can be recycled back to the metallographic sample preparation, saving water resources and recovering the iron filings, thus avoiding water pollution. The metallographic sample body 1 can be a metallographic polishing machine, metallographic mounting machine, etc. A rinsing liquid is used during sample preparation for cooling and lubrication. In this embodiment, the rinsing liquid is water; however, it can also be a grinding fluid, depending on the sample preparation requirements. The purification mechanism 2 can simultaneously purify the effluent from multiple metallographic sample bodies 1. The effluent refers to the rinsing liquid containing iron filings after rinsing the samples. The solution inlet of the purification mechanism 2 is connected to each metallographic sample body 1 via a branch pipe, and the solution outlet of the purification mechanism 2 is connected to the nozzle of each metallographic sample body 1 via a branch pipe.

[0028] Preferably, the purification mechanism 2 is located below the sample preparation device 1, that is, the water collection tank 21 is located below the sample preparation device 1. The drain port of the sample preparation device 1 is connected to the solution inlet 211 of the water collection tank 21 through a first pipe 13. The rinsing liquid of the sample preparation device 1 can be discharged into the water collection tank 21 through the first pipe 13. The nozzle 11 of the sample preparation device 1 is connected to the solution outlet 212 of the water collection tank 21 through a second pipe 14. The rinsing liquid, which removes iron filings and impurities, is sprayed out from the nozzle 11 through the second pipe 14 for metallographic sample preparation and cooling of the workpiece. Preferably, a lift pump 15 is provided on the second pipe 14 for pumping the rinsing liquid in the water collection tank 21 into the nozzle for rinsing.

[0029] Preferably, valves are provided on the first pipe 13 and the second pipe 14 respectively to control the opening and closing of the pipes.

[0030] Preferably, the water collection tank 21 is made of PVC plastic sheet, which is white and transparent. During use, the accumulation of iron filings in the water collection tank 21 can be directly observed, facilitating timely treatment of the deposited iron filings. The water collection tank 21 includes a tank body and a cover plate. The cover plate is placed on the tank body and is detachably connected to the tank body, facilitating the collection of iron filings at the bottom of the tank.

[0031] In an optimized implementation, the water collection tank 21 is equipped with multiple baffles, which divide the tank cavity into multiple sedimentation zones. The water collection tank 21 is sequentially divided into multiple sedimentation zones by the baffles, and adjacent sedimentation zones are interconnected. The rinsing liquid enters the water collection tank 21 from the solution inlet and settles sequentially in each sedimentation zone, thereby improving the sedimentation path and thus enhancing the iron filings sedimentation effect.

[0032] As one specific implementation, the lower part of the water collection tank 21 is provided with a chip removal hole (not shown in the figure). Each sedimentation zone corresponds to a chip removal hole. When the iron filings deposited in the water collection tank 21 need to be cleaned, after the sample preparation device 1 stops working, the valves on the first pipe 13 and the second pipe 14 can be closed, the valve of the chip removal hole can be opened, the iron filings and rinsing liquid in the water collection tank 21 can be discharged, the discharged iron filings can be recycled, and then rinsing liquid can be added to the water collection tank 21.

[0033] In an optimized implementation, some of the baffles are first baffles 23, and the rest are second baffles 24. The first baffles 23 and the second baffles 24 are alternately arranged along the solution inlet to the solution outlet. The first baffle 23 is connected to the bottom of the water collection tank 21, and the second baffle 24 is connected to the cover of the water collection tank 21. The gap between the first baffle 23 and the cover of the water collection tank 21 forms an overflow outlet, and the gap between the second baffle 24 and the bottom of the water collection tank 21 forms a communication outlet. To ensure effective iron filings removal, the number of baffles in the water collection tank can be appropriately increased.

[0034] Preferably, the sum of the number of the first water baffle 23 and the second water baffle 24 is an even number, and the number of water baffles can be set according to requirements.

[0035] In this embodiment, there are two of each of the first baffle plate 23 and the second baffle plate 24. That is, the first baffle plate 23, the second baffle plate 24, the first baffle plate 23, and the second baffle plate 24 are arranged sequentially between the solution inlet 2 and the solution outlet. The four baffle plates divide the water collection tank 21 into five sedimentation zones. The adjacent sedimentation zones are connected. The rinsing liquid enters the water collection tank 21 from the solution inlet 211. The iron filings will settle to the bottom of the tank due to their own weight. After flowing through each sedimentation zone in sequence, most of the iron filings can be deposited. In the last sedimentation zone, the electromagnet 22 can adsorb the iron filings in the rinsing liquid, ensuring that the treated rinsing liquid contains no iron filings or only a small amount of iron filings.

[0036] In the optimized implementation, the height of each overflow port decreases sequentially along the direction from solution inlet 211 to solution outlet 212, that is, the height of each of the first baffle plates 23 decreases sequentially along the direction from solution inlet 211 to solution outlet 212.

[0037] In the optimized implementation, the height of each of the connecting ports decreases sequentially along the direction from the solution inlet 211 to the solution outlet 212, that is, the distance between each of the second baffles 24 and the bottom of the water collection tank 21 decreases sequentially along the direction from the solution inlet 211 to the solution outlet 212.

[0038] Since the heights of the first baffles 23 and the second baffles 24 are different, the overflow outlets formed between the first baffles 23 and the cover plate are at different heights, and the communication outlets formed between the second baffles 24 and the bottom of the collection tank 21 are at different heights. The second baffles 24 and the bottom of the collection tank 21 form a forced overflow. After the flushing liquid overflows normally through the first baffles 23, it must be forced to overflow from the bottom of the second baffles 24 to the next sedimentation zone. The forced overflow allows more iron filings to settle to the bottom earlier, improving the iron filings sedimentation efficiency. The earlier the iron filings are deposited, the larger and heavier they are. Therefore, the gap between the second baffles 24, which is closer to the solution inlet 212, and the bottom of the tank is larger, reducing the probability of blockage and increasing the working cycle of the collection tank 21.

[0039] In an optimized implementation, the purification mechanism 2 further includes a water storage tank 25. The inlet end of the water storage tank 25 is connected to the solution outlet 212 of the water collection tank 21, and the outlet end of the water storage tank 25 is connected to the nozzle 11 via a pipe. After the rinsing liquid discharged from the sample preparation device 1 is treated by the water collection tank 21 and the iron filings are removed, the rinsing liquid enters the water storage tank 25 for storage and is used by the nozzle 11. The second pipe 14 is connected to the outlet of the water storage tank and the water collection tank 21 is connected to the water storage tank 25. On the one hand, this can serve to store the rinsing liquid to meet the metallographic sample preparation requirements. On the other hand, it avoids the second pipe 14 being directly connected to the water collection tank 21, which would disturb the water collection tank 21 and affect the precipitation of iron filings.

[0040] Preferably, the water storage tank 25 is also connected to a replenishment pipe 251 for replenishing flushing fluid. The water storage tank 25 is connected to a level gauge 252 for monitoring the liquid level in the water storage tank 25. When the liquid level is lower than a minimum threshold, an appropriate amount of flushing fluid can be replenished through the replenishment pipe 251. The outlet end of the water storage tank 25 is located below the level gauge 252.

[0041] In an optimized implementation, a filter screen 213 is provided at the solution outlet 212.

[0042] In an optimized implementation, the purification mechanism 2 further includes a buffer tank 26, which is disposed on the side of the water collection tank 21 near the solution inlet 211. The buffer tank 26 is connected to the solution inlet 211, and the inlet end of the buffer tank 26 is connected to the drain port of the sample preparation device 1.

[0043] To prevent the rinsing liquid discharged from the sample preparation device 1 from disturbing the water collection tank 21, a buffer tank 26 is provided. The discharged rinsing liquid is first discharged into the buffer tank 26, and then overflows from the buffer tank 26 into the water collection tank 21.

[0044] In an optimized implementation, a guide plate 261 is provided inside the buffer tank 26. The guide plate 261 is located below the inlet of the buffer tank 26 and is inclined. The height of the end of the guide plate 261 connected to the buffer tank 26 is lower than the height of the other end. The solution entering the buffer tank 26 can flow along the guide plate, and iron filings and larger impurity particles can settle between the guide plate 261 and the tank wall of the buffer tank 26 to form preliminary sedimentation.

[0045] Preferably, the buffer tank 26 is provided with two guide plates 261, which are symmetrically arranged. The guide plates 261 in the buffer tank 26 can guide the rinsing fluid. There is a gap between the guide plates 261 and the bottom of the buffer tank 26. The guide plates 261 can block the rising iron filings, improve the deposition of iron filings and impurity particles, and can initially remove iron filings and impurities in the rinsing fluid.

[0046] In an optimized implementation, the bottom of the buffer tank 26 is provided with a deposition zone, which is serrated and can accelerate the deposition of iron filings.

[0047] Preferably, the height of the solution outlet 212 is lower than the height of the first baffle plate 23 near the solution outlet 212.

[0048] After the rinsing fluid enters the buffer tank 26, the iron filings carried in the rinsing fluid will be deposited at the bottom of the buffer tank 26 and between the guide plate 261 and the side wall of the buffer tank 26. The iron filings in the buffer tank 26 can be cleaned when the sample preparation device 1 stops working. There are two specific cleaning methods:

[0049] As one implementation method, iron filings can be cleaned by using a magnet to remove them from the buffer groove 26.

[0050] As one implementation method, the bottom of the buffer tank 26 and the area between the guide plate 261 and the side wall of the buffer tank 26 are iron filings deposition areas. A chip removal hole is opened in the corresponding iron filings deposition area of ​​the buffer tank 26. The valve on the solution inlet 211 is closed and the valve on the chip removal hole is opened. The iron filings in the buffer tank 26 are discharged with the solution. The iron filings are collected, and after rinsing the buffer tank 26, it can continue to be used for metallographic sample preparation.

[0051] Preferably, in order to improve the iron filings removal efficiency, the water collection tank 21 is also provided with a circulation pipeline. One end of the circulation pipeline is connected to the last sedimentation zone and the other end is connected to the sedimentation zone near the solution inlet. A circulation pump is provided on the circulation pipeline to circulate the rinsing liquid and improve the iron filings sedimentation efficiency.

[0052] In some embodiments, the circuit of the electromagnet 22 is connected in parallel with the circuit of the sample preparation device 1. When the sample preparation device 1 is started, the electromagnet 22 receives a current signal and generates magnetism, which can further attract fine iron filings that have not yet settled to the bottom of the water collection tank, thereby achieving further purification of the water source at the outlet. When the sample preparation device 1 stops operating, the magnetism of the electromagnet disappears, and water inlet and outlet also stop. The iron filings can slowly sink to the bottom under their own gravity. Operators can clean the water collection tank at any time according to the iron filings situation in the tank, which is simple and convenient, ready for the next use.

[0053] Those skilled in the art will understand that this invention can be implemented in many other specific forms without departing from the spirit and scope of this invention. Although embodiments of this invention have been described, it should be understood that this invention is not limited to these embodiments, and those skilled in the art can make changes and modifications within the spirit and scope of this invention as defined in the appended claims.

Claims

1. A metallographic sample preparation apparatus, comprising a sample preparation device, wherein the sample preparation device is equipped with a nozzle, characterized in that, It also includes a purification mechanism, which includes a water collection tank. The water collection tank has a solution inlet and a solution outlet at its two ends. The solution inlet is connected to the drain port of the sample preparation device, and the solution outlet is connected to the nozzle. The water collection tank is divided into multiple sedimentation zones, which are distributed sequentially along the direction from the solution inlet to the solution outlet. Each pair of adjacent sedimentation zones is connected to each other, and at least one sedimentation zone is equipped with an electromagnet.

2. The metallographic sample preparation equipment according to claim 1, characterized in that, The water collection tank is equipped with multiple baffles, which divide the tank cavity into multiple sedimentation zones.

3. The metallographic sample preparation equipment according to claim 2, characterized in that, Some of the water baffles are first water baffles, and the rest are second water baffles. The first water baffles and the second water baffles are arranged alternately along the solution inlet to the solution outlet. The first water baffles are connected to the bottom of the water collection tank, and the second water baffles are connected to the cover plate of the water collection tank. The gap between the first water baffle and the cover plate of the water collection tank forms an overflow port, and the gap between the second water baffle and the bottom of the water collection tank forms a communication port.

4. The metallographic sample preparation equipment according to claim 3, characterized in that, The height of each overflow port decreases sequentially from the solution inlet to the solution outlet.

5. The metallographic sample preparation equipment according to claim 3, characterized in that, The height of each of the aforementioned connecting ports decreases sequentially from the solution inlet to the solution outlet.

6. The metallographic sample preparation equipment according to claim 1, characterized in that, The purification mechanism also includes a water storage tank, the inlet end of which is connected to the solution outlet of the water collection tank, and the outlet end of which is connected to the nozzle via a pipe.

7. The metallographic sample preparation equipment according to claim 1, characterized in that, A filter screen is provided at the solution outlet.

8. The metallographic sample preparation equipment according to claim 1, characterized in that, The purification mechanism also includes a buffer tank, which is located on the side of the water collection tank near the solution inlet. The buffer tank is connected to the solution inlet, and the inlet end of the buffer tank is connected to the drain port of the sample preparation device.

9. The metallographic sample preparation equipment according to claim 8, characterized in that, A guide plate is provided inside the buffer tank. The guide plate is inclined and connected to the lower part of the inlet end of the buffer tank. The height of the end of the guide plate connected to the buffer tank is lower than the height of the other end.

10. The metallographic sample preparation equipment according to claim 1, characterized in that, An electromagnet is installed in the sedimentation zone near the solution outlet.

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