Continuous casting sheet billet sample inspection device

Abstract

The invention belongs to the technical field of continuous casting sheet billet production, and relates to a continuous casting sheet billet sample inspection device. The sample acid etching part (1) comprises an upper telescopic part (3) and a lower telescopic part (4), and a sample (5) is borne on the lower telescopic part (4); the sample acid etching component (2) comprises an acid etching tank (7), a sample bearing piece (27) is arranged in the acid etching tank (7), a tank cover (8) is arranged at the upper part of the acid etching tank (7), a spraying pipe (9) is arranged on the tank cover (8), and a nozzle (10) is arranged on the spraying pipe (9). The continuous casting sheet billet sample inspection device is simple in structure, the sample milling and grinding leveling control precision can be effectively improved, the sample milling and grinding leveling efficiency is greatly improved, meanwhile, the corrosion effect is improved in the sample acid etching process, intelligent closed corrosion can be achieved, acid gas is prevented from making contact with the human body, and personnel safety is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of continuous casting slab production, and more specifically, relates to a continuous casting slab sample inspection device. Background Art

[0002] (1) Journal article "Application of Low-magnification Pickling Automation System": The low-magnification pickling method used in the paper, the control process consists of five major systems: automatic acid preparation system, automatic transportation system, automatic pickling system, automatic cleaning system, acid mist and waste liquid automatic neutralization treatment and discharge. After milling and grinding, the low-magnification sample is hoisted to the sample conveying trolley (set as the origin). The employee selects the carbon steel / stainless steel method and confirms that the automatic pickling system is ready. Reset the emergency stop button, press and hold the run key, and the system starts running: After the automatic transportation system sends the trolley to the designated location, the lifting device lifts the sample and puts it into the cold / hot acid tank, and starts the automatic pickling system; after the pickling is completed, the automatic cleaning system lifts the sample out of the cold / hot acid tank, puts it into the cleaning tank for automatic cleaning and drying, and then the automatic transportation system puts the sample into the conveying trolley and returns to the origin. Although the degree of automation is high, the pickling process is numerous, the process is too long, and the efficiency is low.

[0003] (2) Invention patent "Low-magnification tissue etching method and fully automatic low-magnification tissue etching system" (authorization announcement number CN103454437 B): The present invention discloses a low-magnification tissue etching method and a fully automatic low-magnification tissue etching system. The method comprises: cutting the sample by a flame cutting machine; transporting the cut sample to an automatic test platform for cooling by a forklift; hoisting the sample to a milling and grinding machine for processing by an automatic crane; transporting the processed sample to a fully automatic electrolytic corrosion machine for corrosion and cleaning; transporting the sample to a photo-taking point by a conveyor belt, automatically taking photos, and returning the sample to the shelf. Sample processing is divided into two steps. Secondary cutting is required before milling and grinding. The milling and grinding operation is divided into two steps: milling and grinding. The processing efficiency is low and the time is long. The spraying method is manual and there is no acid circulation function. Electrolytic corrosion is used, and the corrosion time is long.

[0004] (3) Invention patent "A method for using a reagent for displaying low-magnification structure and defects of continuous casting steel billet" (Application publication number CN 112362438) A): The present invention discloses a method for using a cold corrosion display reagent for low-magnification structure and defects of continuous casting steel billets, which comprises the following steps: processing a sample billet to be tested until the surface is smooth; placing the sample billet with the tested surface facing upward and horizontally in an acid and alkali resistant tray; wiping with anhydrous ethanol to remove oil stains on the test surface; moving the acid and alkali resistant tray into a fume hood and ventilating it; adjusting the sample so that its test surface is horizontal; using a brush to dip in the cold corrosion display reagent and brushing it evenly on the sample surface, the cold corrosion display reagent is composed of nitric acid, sulfuric acid, hydrochloric acid and water, the percentage content of the nitric acid, sulfuric acid and hydrochloric acid is 5-15%, and the rest is supplemented by water to 100%; waiting for a predetermined time and repeating the operation until the structure and defects of the casting billet are clearly visible; rinsing with clean water and brushing with a special brush; drying the sample surface with a hair dryer; acquiring images with a digital camera and rating according to relevant standards; the display method of the present invention is not limited by the size of the sample and does not require special large-scale detection equipment.

[0005] The acid etching method is to use a brush to dip the cold etching reagent and evenly brush it on the sample surface, wait for a predetermined time, and repeat the operation until the structure and defects of the ingot are clearly visible. This method has a low degree of automation and high labor intensity. Although it greatly reduces acid gas, it is still difficult to avoid acid gas causing harm to workers and pollution to the environment.

[0006] However, the prior art does not involve the technical problems and technical solutions of the present application. Summary of the invention

[0007] The technical problem to be solved by the present invention is: in view of the shortcomings of the existing technology, a continuous casting slab sample inspection device with a simple structure is provided, which can effectively improve the control accuracy of sample milling and leveling, greatly improve the sample milling and leveling efficiency, and at the same time improve the corrosion effect during the sample acid etching process, realize intelligent closed corrosion, eliminate the contact between acid gas and human body, and ensure the safety of personnel.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0009] The present invention discloses a continuous casting slab sample inspection device, comprising a sample milling and leveling component and a sample acid etching component. The sample acid etching component comprises an upper telescopic component and a lower telescopic component. The sample is carried on the lower telescopic component. When the sample is milled and leveled, the upper telescopic component first moves downward to a position to define an upper position and a plane, and the lower telescopic component then moves upward to drive the sample to press against the upper telescopic component. The clamping telescopic component clamps the sample, and the upper telescopic component then moves upward to an initial position. The sample acid etching component comprises an acid etching tank, a sample carrier is arranged in the acid etching tank, a tank cover is arranged on the upper part of the acid etching tank, a spray pipe is arranged on the tank cover, and a nozzle is arranged on the spray pipe.

[0010] The upper telescopic parts are provided in plurality, and the lower telescopic parts are provided in plurality.

[0011] The slot cover is provided with a first rod and a second rod. The first rod is movably connected with a plurality of left positioning blocks according to the gap, and the second rod is movably connected with a plurality of right positioning blocks according to the gap. Each left positioning block is connected to a corresponding right positioning block through a spring.

[0012] The left positioning block includes a left bayonet portion and a left main body portion, the left bayonet portion is a C-shaped structure, and the left main body portion is movably connected to the first rod; the right positioning block includes a right bayonet portion and a right main body portion, the right bayonet portion is a C-shaped structure, and the right main body portion is movably connected to the second rod; the left bayonet portion and the right bayonet portion are connected by a spring, and the left bayonet portion and the right bayonet portion are symmetrically arranged.

[0013] A translational telescopic component is arranged between the trough cover and the spray pipe.

[0014] The spray pipe is connected to one end of the acid inlet pipe, the other end of the acid inlet pipe is connected to the acid storage tank, and the acid etching tank 7 is connected to the acid storage tank through the acid return pipe.

[0015] The continuous casting slab sample inspection device comprises a milling and grinding component, which comprises a milling and grinding tool and a milling and grinding leveling component. The milling and grinding tool of the milling and grinding component integrates milling and grinding.

[0016] When the milling component performs rough milling on the sample, the milling tool for mold steel and high carbon steel adopts a cutting depth of 2mm-3mm, and the milling tool for low carbon steel adopts a cutting depth of 3mm-4mm; when the milling component performs fine milling on the sample, the cutting depth is 0.2mm-0.5mm; the fine milling cutting speed is divided into three gears, the low carbon steel milling tool is 80-95mm / min, the high carbon steel milling tool is 70-80mm / min, and the mold steel milling tool is 60mm / min; after the sample is fine milled, the processing surface roughness Ra≤0.8μm.

[0017] The upper telescopic parts are provided with two, and the lower telescopic parts are provided with six.

[0018] The lower part of the lower telescopic cylinder is fixed on the component base, the upper part of the lower telescopic cylinder is provided with a sample bearing seat, and the sample bearing seat is provided with a fixed clamping component and a clamping telescopic component.

[0019] The technical solution of the present invention is adopted, and the working principle and beneficial effects are as follows:

[0020] The continuous casting slab sample inspection device of the present invention is structurally improved for the sample milling and leveling component and the sample acid etching component during the structural setting. For the sample acid etching component, the sample acid etching component includes an upper telescopic component and a lower telescopic component, the upper telescopic component is located above the lower telescopic component, the upper telescopic component can extend downward and shrink upward, and the lower telescopic component can extend upward and shrink downward. Before the sample needs to be milled, the sample is first leveled. When leveling, the control component controls the upper telescopic component to move downward first, and the moving position is set according to the model and size of different samples. The position of the upper telescopic component after moving downward defines the upper position and plane position of the sample, which is the reference for ensuring the leveling of the sample. The control component then controls the lower telescopic component to move upward again, driving the sample to press against the upper telescopic component. After the sample presses against the upper telescopic component, it cannot continue to move, and the sample is moved upward to the position, and then the control component controls the clamping telescopic component to clamp the sample, and the control component controls the upper telescopic component to move upward again and return to the initial position; at this time, the sample has been leveled, and the position clamping is achieved, and the milling operation can be performed. After the sample is milled, it is necessary to perform corrosion operations. At this time, the sample acid etching component is required. The acid etching tank of the sample acid etching component is used to place the sample carrier. A tank cover is set on the top of the acid etching tank. The tank cover is opened, the sample is placed, and then the tank cover is closed. A spray pipe is set on the tank cover. The control component controls the acid storage tank to supply acid liquid, so that the nozzle on the spray pipe sprays acid liquid, and the sample is reliably acid-etched. The above structure realizes the recycling of corrosive acid liquid. The spray pipe can automatically spray the corrosive liquid evenly on the surface of the sample through the nozzle, effectively improving the acid etching effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following is a brief description of the contents and symbols in the drawings of this specification:

[0022] Figure 1 It is a schematic structural diagram of the sample milling and leveling component of the continuous casting slab sample inspection device according to the present invention;

[0023] Figure 2 It is a schematic structural diagram of a sample acid etching component of the continuous casting slab sample inspection device according to the present invention;

[0024] Figure 3 It is a structural schematic diagram of a positioning block of the continuous casting slab sample inspection device of the present invention;

[0025] The marks in the attached drawings are respectively: 1. sample milling and leveling component; 2. sample acid etching component; 3. upper telescopic component; 4. lower telescopic component; 5. sample; 6. clamping telescopic component; 7. acid etching tank; 8. sample carrier; 9. spray pipe; 10. nozzle; 11. first rod; 12. second rod; 13. left positioning block; 14. right positioning block; 15. spring; 16. left clamping part; 17. left main body; 18. right clamping part; 19. right main body; 20. translation telescopic component; 21. acid inlet pipe; 22. acid storage tank; 23. acid return pipe; 24. component base; 25. sample carrier; 26. fixed clamping component; 27. sample carrier; 28. circulating pump. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention, such as the shape, structure, mutual position and connection relationship between the various components involved, the function and working principle of each part, etc., through the description of the embodiments with reference to the accompanying drawings:

[0027] As attached Figure 1 -Attached Figure 3As shown, the present invention is a continuous casting slab sample inspection device, including a sample milling and leveling component 1 and a sample acid etching component 2. The sample acid etching component 1 includes an upper telescopic component 3 and a lower telescopic component 4. The sample 5 is carried on the lower telescopic component 4. When the sample 5 is milled and leveled, the upper telescopic component 3 first moves downward to a position to define the upper position and plane, and the lower telescopic component 4 then moves upward to drive the sample 5 to press against the upper telescopic component 3. The clamping telescopic component 6 clamps the sample 5, and the upper telescopic component 3 moves upward and returns to the initial position; the sample acid etching component 2 includes an acid etching tank 7, a sample carrier 8 is arranged in the acid etching tank 7, a tank cover 8 is arranged on the upper part of the acid etching tank 7, a spray pipe 9 is arranged on the tank cover 8, and a nozzle 10 is arranged on the spray pipe 9. The above structure proposes an improved technical solution for the deficiencies in the prior art. When the structure is set, the sample milling and leveling component 1 and the sample acid etching component 2 are structurally improved respectively. For the sample acid etching component 1, the sample acid etching component 1 includes an upper telescopic component 3 and a lower telescopic component 4. The upper telescopic component 3 is located above the lower telescopic component 4. The upper telescopic component 3 can extend downward and retract upward, and the lower telescopic component 4 can extend upward and retract downward. Before the sample 5 needs to be milled, the sample 5 is first leveled. When leveling, the control component controls the upper telescopic component 3 to move downward first, and the moving position is set according to the model and size of different samples. The position of the upper telescopic component 3 after moving downward defines the upper position and plane position of the sample 5, which is the reference for ensuring the leveling of the sample 5. The control component then controls the lower telescopic component 4 to move upward again, driving the sample 5 to press against the upper telescopic component 3. After the sample 5 presses against the upper telescopic component 3, it cannot move further, so that the sample 5 moves upward to the position, and then the control component controls the clamping telescopic component 6 to clamp the sample 5. The control component controls the upper telescopic component 3 to move upward again and return to the initial position; at this time, the sample 5 has been leveled and the position clamping is achieved, and the milling operation can be performed. After the milling operation of the sample 5, a corrosion operation needs to be performed. At this time, the sample acid etching component 2 needs to be used. The acid etching tank 7 of the sample acid etching component 2 is used to place the sample carrier 8. A slot cover 8 is set on the upper part of the acid etching tank 7. The slot cover is opened, the sample 5 is placed, and then the slot cover 8 is closed. A spray pipe 9 is set on the slot cover 8. The acid storage tank is controlled by the control component to supply acid liquid, and the nozzle 10 on the spray pipe 9 sprays the acid liquid to reliably etch the sample. The above structure realizes the recycling of corrosive acid liquid. The spray pipe 9 can automatically and evenly spray the corrosive liquid on the surface of the sample 5 through the nozzle 10, effectively improving the acid etching effect. The continuous casting slab sample inspection device described in the present invention has a simple structure, can effectively improve the sample milling and leveling control accuracy, and the sample milling and leveling efficiency is greatly improved. At the same time, the corrosion effect is improved during the sample acid etching process, and intelligent closed corrosion can be realized, so as to prevent acid gas from contacting the human body and ensure personnel safety.

[0028] The upper telescopic parts 3 are provided in plurality, and the lower telescopic parts 4 are provided in plurality. In the above structure, the upper telescopic parts 3 control the position and plane from the top, and the lower telescopic parts 4 control the plane from the bottom, thereby effectively realizing the leveling of the sample and ensuring the subsequent milling and grinding accuracy.

[0029] The slot cover 8 is provided with a first rod 11 and a second rod 12. The first rod 11 is movably connected with a plurality of left positioning blocks 13 according to the gap, and the second rod 12 is movably connected with a plurality of right positioning blocks 14 according to the gap. Each left positioning block 13 is connected to a corresponding right positioning block 14 by a spring 15. The left positioning block 13 includes a left bayonet portion 16 and a left body portion 17. The left bayonet portion 16 is a C-shaped structure, and the left body portion 17 is movably connected to the first rod 11; the right positioning block 14 includes a right bayonet portion 18 and a right body portion 19. The right bayonet portion 18 is a C-shaped structure, and the right body portion 19 is movably connected to the second rod 12; the left bayonet portion 16 and the right bayonet portion 18 are connected by a spring 15, and the left bayonet portion 16 and the right bayonet portion 18 are symmetrically arranged. With the above structure, the plurality of left positioning blocks 13 can be flexibly rotated relative to the first rod 11, and the plurality of right positioning blocks 14 can be flexibly rotated relative to the second rod 12. The spray pipe 9 can be movably mounted between a plurality of left positioning blocks 13 and a plurality of right positioning blocks 14. One end of the spring 15 is hooked and connected to the left positioning block 13, and the other end of the spring 15 is hooked to the right positioning block 14, so that the left positioning block 13 and the right positioning block 14 can be reliably tightened to position the spray pipe 9, and the spring 15 can be conveniently removed and connected. It is convenient to quickly take out and install the spray pipe 9, and it is easy to use.

[0030] A translation telescopic component 20 is arranged between the tank cover 8 and the spray pipe 9. The above structure controls the extension and contraction of the translation telescopic component 20 by the control component, driving the spray pipe 9 to move along the position defined by the multiple left positioning blocks 13 and the multiple right positioning blocks 14, and can reliably realize the position change when the acid etching liquid is sprayed, effectively increase the spray coverage area, and improve the effect.

[0031] The spray pipe 9 is connected to one end of the acid inlet pipe 21, and the other end of the acid inlet pipe 21 is connected to the acid storage tank 22. The acid etching tank 7 is connected to the acid storage tank 22 through the acid return pipe 23. In the above structure, the acid etching main equipment includes an acid etching tank (cold acid etching tank, corrosion tank), an acid storage tank, a matching circulation pump, an electric valve, a pipeline, a liquid level meter, a cylinder, etc. The pickling tank supplies acid solution to the acid etching tank through the acid inlet pipe 21. The acid etching tank is also provided with an acid return pipe and an electric valve. The acid inlet pipe and the acid return pipe are respectively connected to the acid storage tank to realize the recycling of the corrosive liquid. The corrosion tank cover is provided with a spray pipe, and a plurality of nozzles are provided on the spray pipe, which can automatically spray the corrosive liquid evenly on the sample surface. Acid etching process: Automatic spraying is adopted. After the sample is processed with milling parts, it is transferred to the corrosion tank. After the detection surface is cleaned, the tank cover is closed. After setting the spraying acid etching time, the automatic spraying is started. After the spraying is finished, it is kept for 5 minutes and then scrubbed with a brush. Then, the detection surface is rinsed with clean water, and then the sample is blown dry with compressed air. The corrosive liquid used in the test process is usually stored in the acid storage tank. When in use, the circulating pump on the acid storage tank pumps the corrosive liquid into the corrosion tank 7. The acid return valve at the bottom of the corrosion tank is opened, and the corrosive liquid flows back to the acid storage tank. The corrosive liquid circulates in the acid storage tank, the corrosion tank, and the pipeline. The acid storage tank is equipped with a circulating pump, a radar level gauge, an acid return port, and an exhaust port for the circulation of the corrosive liquid, the detection of the corrosive liquid level, and the balance of the pressure in the tank.

[0032] The continuous casting slab sample inspection device comprises a milling component, which comprises a milling tool and a milling leveling component 1, wherein the milling tool of the milling component integrates milling and grinding functions. The above steps can reliably realize the milling and grinding operations of the sample 5 through a set of components.

[0033] When the milling component performs rough milling on sample 5, the milling tool of mold steel and high carbon steel adopts a cutting depth of 2mm-3mm, and the milling tool of low carbon steel adopts a cutting depth of 3mm-4mm; when the milling component performs fine milling on sample 5, the cutting depth is 0.2mm-0.5mm; the fine milling cutting speed is divided into three gears, the low carbon steel milling tool is 80-95mm / min, the high carbon steel milling tool is 70-80mm / min, and the mold steel milling tool is 60mm / min; after fine milling of sample 5, the machined surface roughness Ra≤0.8μm. The above steps effectively improve the rough milling and fine milling, and improve the milling quality of the sample.

[0034] There are two upper telescopic parts 3 and six lower telescopic parts 4. In the above structure, the top is two upper telescopic parts 3, which can be height-fixing hydraulic cylinders, the lower part determines the upper plane position of the sample, and the lower part is composed of six upper hydraulic cylinders. When the sample moves upward, since the upper hydraulic cylinder limits the height of the upper surface, the lower hydraulic cylinder will push the sample to the point where it cannot move upward, and then the tightening cylinder will push the sample tightly, and the upper cylinder will retreat to its position, and the whole sample leveling is completed.

[0035] The lower part of the lower telescopic cylinder 4 is fixed on the component base 24, and the upper part of the lower telescopic cylinder 4 is provided with a sample bearing seat 25, and the fixed clamping component 26 and the clamping telescopic component 6 are provided on the sample bearing seat 25. In the above structure, the component base 24 is the basis of the milling and leveling component 1, which is used to set the lower telescopic component 4, and the lower telescopic component 4 is fixedly connected to the sample bearing seat 25, and the sample bearing seat 25 is used to place the sample, and the fixed clamping component 26 and the clamping telescopic component 6 are used to clamp the limit sample from different directions, so as to facilitate the milling operation of the sample.

[0036] The continuous casting slab sample inspection device described in the present invention makes structural improvements to the sample milling and leveling component 1 and the sample acid etching component 2, respectively. With respect to the sample acid etching component 1, the sample acid etching component 1 includes an upper telescopic component 3 and a lower telescopic component 4, the upper telescopic component 3 is located above the lower telescopic component 4, the upper telescopic component 3 can extend downward and retract upward, and the lower telescopic component 4 can extend upward and retract downward. Before the sample 5 needs to be milled, the sample 5 is leveled first. When leveling, the control component controls the upper telescopic component 3 to move downward into position first, and the moving position is set according to different sample models and sizes. The position after the upper telescopic component 3 moves downward defines the upper position and plane position of the sample 5, which is a reference for ensuring the leveling of the sample 5. The control component controls the lower telescopic component 4 to move upward again, driving the sample 5 to press against the upper telescopic component 3. After the sample 5 presses against the upper telescopic component 3, it cannot move further, so that the sample 5 moves upward to the right position. The control component controls the clamping telescopic component 6 to clamp the sample 5. The control component controls the upper telescopic component 3 to move upward again and return to the initial position. At this time, the sample 5 has been leveled and the position clamping is achieved, so it can be milled. After the milling operation of the sample 5, it needs to be corroded. At this time, the sample acid etching component 2 is used. The acid etching tank 7 of the sample acid etching component 2 is used to place the sample carrier 8. The upper part of the acid etching tank 7 is provided with a tank cover 8. The tank cover is opened, the sample 5 is placed, and then the tank cover 8 is closed. A spray pipe 9 is provided on the tank cover 8. The control component controls the acid storage tank to supply acid liquid, so that the nozzle 10 on the spray pipe 9 sprays acid liquid, and the sample is reliably corroded. The above structure realizes the recycling of corrosive acid liquid. The spray pipe 9 can automatically spray the corrosive liquid evenly on the surface of the sample 5 through the nozzle 10, effectively improving the acid etching effect.

[0037] The present invention is described exemplarily above in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A continuous casting slab sample inspection device, characterized in that: The invention comprises a sample milling and leveling component (1) and a sample acid etching component (2). The sample acid etching component (1) comprises an upper telescopic component (3) and a lower telescopic component (4). A sample (5) is carried on the lower telescopic component (4). When the sample (5) is milled and leveled, the upper telescopic component (3) first moves downward to a position to define an upper position and a plane. The lower telescopic component (4) then moves upward to drive the sample (5) to press against the upper telescopic component (3). The clamping telescopic component (6) clamps the sample (5). The upper telescopic component (3) then moves upward to return to an initial position. The sample acid etching component (2) comprises an acid etching tank (7). A sample bearing member (27) is arranged in the acid etching tank (7). A tank cover (8) is arranged on the upper part of the acid etching tank (7). A spray pipe (9) is arranged on the tank cover (8). A nozzle (10) is arranged on the spray pipe (9).

2. The continuous casting slab sample inspection device according to claim 1, characterized in that: A plurality of the upper telescopic parts (3) are provided, and a plurality of the lower telescopic parts (4) are provided.

3. The continuous casting slab sample inspection device according to claim 1 or 2, characterized in that: The slot cover (8) is provided with a first rod (11) and a second rod (12); a plurality of left positioning blocks (13) are movably connected to the first rod (11) at a gap, and a plurality of right positioning blocks (14) are movably connected to the second rod (12) at a gap; each left positioning block (13) is connected to a corresponding right positioning block (14) via a spring (15).

4. The continuous casting slab sample inspection device according to claim 3, characterized in that: The left positioning block (13) comprises a left snap-in portion (16) and a left main body portion (17), the left snap-in portion (16) being in a C-shaped structure, and the left main body portion (17) being movably connected to the first rod (11); the right positioning block (14) comprises a right snap-in portion (18) and a right main body portion (19), the right snap-in portion (18) being in a C-shaped structure, and the right main body portion (19) being movably connected to the second rod (12); the left snap-in portion (16) and the right snap-in portion (18) are connected via a spring (15), and the left snap-in portion (16) and the right snap-in portion (18) are symmetrically arranged.

5. The continuous casting slab sample inspection device according to claim 1 or 2, characterized in that: A translational telescopic component (20) is arranged between the tank cover (8) and the spray pipe (9).

6. The continuous casting slab sample inspection device according to claim 1 or 2, characterized in that: The spray pipe (9) is connected to one end of the acid inlet pipe (21), the other end of the acid inlet pipe (21) is connected to the acid storage tank (22), and the acid etching tank (7) is connected to the acid storage tank (22) through the acid return pipe (23).

7. The continuous casting slab sample inspection device according to claim 1 or 2, characterized in that: The continuous casting slab sample inspection device comprises a milling and grinding component, which comprises a milling and grinding tool and a milling and grinding leveling component (1). The milling and grinding tool of the milling and grinding component integrates milling and grinding.

8. The continuous casting slab sample inspection device according to claim 1 or 2, characterized in that: When the milling component performs rough milling on the sample (5), the milling cutters for mold steel and high carbon steel use a cutting depth of 2mm-3mm, and the milling cutters for low carbon steel use a cutting depth of 3mm-4mm; when the milling component performs fine milling on the sample (5), the cutting depth is 0.2mm-0.5mm; the fine milling cutting speed is divided into three gears, the low carbon steel milling cutter is 80-95mm / min, the high carbon steel milling cutter is 70-80mm / min, and the mold steel milling cutter is 60mm / min; after fine milling of the sample (5), the machined surface roughness Ra≤0.8μm.

9. The continuous casting slab sample inspection device according to claim 2, characterized in that: Two upper telescopic parts (3) are provided, and six lower telescopic parts (4) are provided.

10. The continuous casting slab sample inspection device according to claim 1 or 2, characterized in that: The lower part of the lower telescopic cylinder (4) is fixed on the component base (24), the upper part of the lower telescopic cylinder (4) is provided with a sample bearing seat (25), and the sample bearing seat (25) is provided with a fixed clamping component (26) and a clamping telescopic component (6).

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