A beryllium bronze strip surface passivation treatment apparatus

Abstract

The utility model discloses a kind of beryllium bronze strip surface passivation treatment equipment, including equipment main body, the top of equipment main body is sequentially provided with surface cleaning groove, passivation treatment pool and flushing groove, the top of equipment main body is fixedly connected with six transmission roller groups, the inside of surface cleaning groove and flushing groove is rotatably connected with two first guide rollers, two second guide rollers are rotatably connected between the inner wall of passivation treatment pool, six transmission roller groups, two first guide rollers and two second guide rollers are provided with beryllium bronze strip body between it.The utility model removes beryllium bronze strip surface oil dirt and residue by alkaline degreasing agent spraying in surface cleaning groove, avoids cross contamination;Combined with large-capacity passivation treatment pool and low-speed transmission roller group, extend passivation liquid contact time to 3-5 minutes (only 1-2 minutes in traditional process), significantly improve passivation film compactness and corrosion resistance;After completing passivation treatment, using deionized water to flush thoroughly, avoid passivation liquid residue.

Description

Technical Field

[0001] This utility model relates to the field of passivation treatment technology, specifically to a beryllium bronze strip surface passivation treatment device. Background Technology

[0002] Passivation is a process that uses chemical or electrochemical methods to form a dense protective film on a metal surface to prevent further oxidation and corrosion. This treatment is commonly applied to metals such as stainless steel, aluminum, and their alloys. By forming a stable oxide film on the surface, it improves the material's corrosion resistance and service life. The passivation film not only effectively isolates the metal from oxygen, moisture, and other corrosive media in the external environment but also enhances the material's mechanical properties and aesthetics.

[0003] Existing beryllium bronze strip passivation equipment mostly adopts a single-tank continuous processing mode. The overlapping of cleaning and passivation processes leads to incomplete surface pretreatment; insufficient passivation contact time (usually only 1-2 minutes) affects film quality; sedimentation of the passivation solution during settling easily leads to uneven concentration, and the lack of waste liquid diversion design results in reagent waste. In addition, existing drive roller groups lack leakage structures, which can easily cause cross-contamination of the solution and affect the final passivation effect. Summary of the Invention

[0004] The purpose of this invention is to provide a beryllium bronze strip surface passivation treatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a beryllium bronze strip surface passivation treatment device, comprising a device body, wherein a surface cleaning tank, a passivation treatment pool, and a rinsing tank are sequentially provided on the top of the device body; six transmission roller groups are fixedly connected to the top of the device body; two No. 1 guide rollers are rotatably connected inside the surface cleaning tank and the rinsing pool; two No. 2 guide rollers are rotatably connected between the inner walls of the passivation treatment pool; a beryllium bronze strip body is disposed between the six transmission roller groups, the two No. 1 guide rollers, and the two No. 2 guide rollers; a cleaning structure is provided inside the surface cleaning tank and the rinsing pool; an alkaline degreasing agent solution chamber and a deionized water solution chamber are provided inside the device body; the output ends of the alkaline degreasing agent solution chamber and the deionized water solution chamber are respectively connected to the two cleaning structures; and a passivation liquid discharge port is fixedly connected to the bottom of the passivation treatment pool.

[0006] As a further preferred embodiment of this technical solution, the transmission roller assembly consists of two fixed plates and a rotating roller. The two fixed plates are fixedly connected to the top of the main body of the equipment, and the rotating roller is rotatably connected between the two fixed plates. A leakage groove is provided inside the rotating roller.

[0007] As a further preferred embodiment of this technical solution, the cleaning structure includes a connecting plate, which is fixedly connected between the inner walls of the surface cleaning tank and the rinsing tank. A diverter is fixedly installed on the top of the connecting plate. Side nozzles are fixedly connected to both sides of the inner walls of the surface cleaning tank and the rinsing tank. Two water pumps are fixedly installed on the outer side of the main body of the equipment. The input ends of the two water pumps extend into the interior of the alkaline degreasing agent solution chamber and the deionized water solution chamber, respectively. The two output ends of the water pumps are fixedly connected to the diverter and the side nozzles, respectively. The output end of the diverter extends to the bottom of the connecting plate.

[0008] As a further preferred embodiment of this technical solution, both sides of the main body of the equipment are fixedly connected to a drain outlet, and the two drain outlets are respectively connected to a surface cleaning tank and a rinsing tank.

[0009] As a further preferred embodiment of this technical solution, two agitators are fixedly installed at the bottom of the passivation treatment tank.

[0010] As a further preferred embodiment of this technical solution, an alkaline degreasing agent injection port and a deionized water injection port are fixedly connected to the outside of the main body of the equipment, and the alkaline degreasing agent injection port and the deionized water injection port are respectively connected to the alkaline degreasing agent solution chamber and the deionized water solution chamber.

[0011] As a further preferred embodiment of this technical solution, a guide ramp is provided between the surface cleaning tank, the passivation treatment tank and the rinsing tank and at the top of the main body of the equipment.

[0012] As a further preferred embodiment of this technical solution, the passivation treatment tank is provided with passivation liquid inside, and a metering window is provided on the outside of the main body of the equipment for observing the level of passivation liquid.

[0013] This utility model provides a beryllium bronze strip surface passivation treatment device, which has the following beneficial effects:

[0014] (1) This utility model removes oil stains and residues on the surface of beryllium bronze strip by spraying alkaline degreasing agent in the surface cleaning tank, avoiding cross-contamination; combined with a large-capacity passivation treatment tank and a low-speed transmission roller group, the contact time of passivation liquid is extended to 3-5 minutes (the traditional process is only 1-2 minutes), which significantly improves the density and corrosion resistance of the passivation film; after the passivation treatment is completed, deionized water is used to rinse thoroughly to avoid passivation liquid residue.

[0015] (2) This utility model uses a double agitator at the bottom of the passivation treatment tank to force the circulation of passivation liquid, preventing solute precipitation. At the same time, it uses a guide slope (20° inclination) to guide the waste liquid to be discharged in a concentrated manner, reducing the waste of passivation liquid and effectively improving the utilization rate. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 3 This is a schematic diagram of a half-section of the present invention;

[0019] Figure 4 This is a schematic diagram of the transmission roller assembly structure of this utility model;

[0020] In the diagram: 1. Main body of the equipment; 2. Passivation treatment tank; 3. Surface cleaning tank; 4. Rinsing tank; 5. Drive roller assembly; 6. Fixed plate; 7. Rotating roller; 8. Leakage tank; 9. No. 1 guide roller; 10. No. 2 guide roller; 11. Agitator; 12. Alkaline degreasing agent solution chamber; 13. Deionized water solution chamber; 14. Alkaline degreasing agent injection port; 15. Deionized water injection port; 16. Drainage port; 17. Water pump; 18. Diverter; 19. Side nozzle; 20. Guide ramp; 21. Connecting plate; 22. Metering window; 23. Beryllium bronze belt body; 24. Passivation liquid discharge port. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figures 1-4As shown, in this embodiment, a beryllium bronze strip surface passivation treatment device includes a main body 1. The top of the main body 1 is sequentially provided with a surface cleaning tank 3, a passivation treatment tank 2, and a rinsing tank 4. Six drive roller groups 5 are fixedly connected to the top of the main body 1. Two first-order guide rollers 9 are rotatably connected inside both the surface cleaning tank 3 and the rinsing tank 4. Two second-order guide rollers 10 are rotatably connected between the inner walls of the passivation treatment tank 2. A beryllium bronze strip body 23 is disposed between the six drive roller groups 5, the two first-order guide rollers 9, and the two second-order guide rollers 10. Cleaning structures are respectively provided inside the surface cleaning tank 3 and the rinsing tank 4. An alkaline degreasing agent solution chamber 12 and a deionized water solution chamber 13 are provided inside the main body 1. The output ends of the alkaline degreasing agent solution chamber 12 and the deionized water solution chamber 13 are respectively connected to the two cleaning structures. A passivation liquid discharge port 24 is fixedly connected to the bottom of the passivation treatment tank 2. The drive roller groups 5 are composed of… The device consists of two fixed plates 6 and a rotating roller 7. The two fixed plates 6 are fixedly connected to the top of the main body 1, and the two fixed plates 6 are rotatably connected by the rotating roller 7. The rotating roller 7 has a leakage groove 8 inside. The two sides of the main body 1 are fixedly connected to the drain outlets 16, which are respectively connected to the surface cleaning tank 3 and the rinsing tank 4. Two agitators 11 are fixedly installed at the bottom of the passivation treatment tank 2. The outer side of the main body 1 is fixedly connected to the alkaline degreasing agent injection port 14 and the deionized water injection port 15, which are respectively connected to the alkaline degreasing agent solution chamber 12 and the deionized water solution chamber 13. A guide slope 20 is provided between the surface cleaning tank 3, the passivation treatment tank 2 and the rinsing tank 4 and at the top of the main body 1. The passivation treatment tank 2 is filled with passivation liquid. The outer side of the main body 1 is provided with a metering window 22 for observing the level of the passivation liquid.

[0023] When using the beryllium bronze strip surface passivation treatment equipment, the beryllium bronze strip body 23 is first released through the transmission roller group 5 and guide rollers, passing through the surface cleaning tank 3, passivation treatment tank 2, and rinsing tank 4. First, the alkaline degreasing agent solution chamber 12 pumps the degreasing agent into the cleaning structure of the surface cleaning tank 3 via the water pump 17. The strip is then sprayed and cleaned by the distributor 19 and side nozzles 18 to remove surface oil. Subsequently, the strip enters the passivation treatment tank 2, where, under the forced circulation of the agitator 11, the passivation liquid uniformly contacts the strip surface for 3-5 minutes, forming a dense passivation film. Finally, pure water supplied by the deionized water solution chamber 13 rinses away residual solution through the cleaning structure of the rinsing tank 4, and the waste liquid is discharged through the drain outlet 16. The leakage trough 8 of the transmission roller group 5 prevents solution stagnation and cross-contamination, while the guide slope 20 directs the waste liquid for centralized discharge. This equipment improves the uniformity of the passivation film and the utilization rate of the reagents by using separate tank processing, extended passivation time and dynamic circulation design.

[0024] like Figures 1-4As shown, the cleaning structure includes a connecting plate 21, which is fixedly connected between the inner walls of the surface cleaning tank 3 and the rinsing tank 4. A diverter 18 is fixedly installed on the top of the connecting plate 21. Side nozzles 19 are fixedly connected to both sides of the inner walls of the surface cleaning tank 3 and the rinsing tank 4. Two water pumps 17 are fixedly installed on the outside of the main body 1. The input ends of the two water pumps 17 extend into the interior of the alkaline degreasing agent solution chamber 12 and the deionized water solution chamber 13, respectively. The two output ends of the water pumps 17 are fixedly connected to the diverter 18 and the side nozzles 19, respectively. The output end of the diverter 18 extends to the bottom of the connecting plate 21.

[0025] When the beryllium bronze strip body 23 enters the surface cleaning tank 3 or the rinsing tank 4, the water pump 17 draws liquid from the alkaline degreasing agent solution chamber 12 or the deionized water solution chamber 13, forming a top spray through the distributor 18, while simultaneously spraying from both sides through the side nozzles 19, achieving three-dimensional cleaning. The design of the distributor 18 extending to the bottom of the connecting plate 21 ensures that the upper and lower surfaces of the strip are treated simultaneously, while the cross-spraying of the side nozzles 19 effectively removes edge residues. This cleaning structure further improves cleaning efficiency through multi-directional fluid impact, and combined with the rapid drainage function of the drain port 16, it reduces solution residue and avoids secondary pollution.

[0026] This utility model provides a beryllium bronze strip surface passivation treatment device. The specific working principle is as follows: When the device is running, the beryllium bronze strip body 23 is continuously processed by the coordinated traction of the transmission roller group 5 and the guide rollers (guide roller 9 and guide roller 10) through the surface cleaning tank 3, the passivation treatment tank 2 and the rinsing tank 4. In the surface cleaning tank 3 stage, the water pump 17 pumps the degreasing agent in the alkaline degreasing agent solution chamber 12 into the cleaning structure, forming a top vertical spray through the distributor 18, and at the same time, cooperating with the 45° cross spray of the side nozzles 19 to achieve three-dimensional cleaning of the upper and lower surfaces and edges of the strip; then the strip enters the passivation treatment tank 2, and under the forced circulation action of the two bottom agitators 11, the passivation liquid maintains full contact with the strip surface for 3-5 minutes to form a dense passivation film; finally, after being rinsed by multi-directional spray of deionized water in the rinsing tank 4, it is finally output to the matching drying equipment (80-120℃ hot air drying) for winding.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A beryllium bronze strip surface passivation treatment apparatus comprising an apparatus body (1), characterised in that: The top of the main body (1) of the equipment is provided with a surface cleaning tank (3), a passivation treatment tank (2) and a rinsing tank (4) in sequence. The top of the main body (1) of the equipment is fixedly connected with six transmission roller groups (5). The interior of the surface cleaning tank (3) and the rinsing tank (4) are rotatably connected with two No. 1 guide rollers (9). The inner walls of the passivation treatment tank (2) are rotatably connected with two No. 2 guide rollers (10). A beryllium bronze belt body (23) is provided between the six transmission roller groups (5), the two No. 1 guide rollers (9) and the two No. 2 guide rollers (10). The interior of the surface cleaning tank (3) and the rinsing tank (4) is provided with cleaning structures. The interior of the main body (1) of the equipment is provided with an alkaline degreasing agent solution chamber (12) and a deionized water solution chamber (13). The output ends of the alkaline degreasing agent solution chamber (12) and the deionized water solution chamber (13) are respectively connected to the two cleaning structures. The bottom of the passivation treatment tank (2) is fixedly connected with a passivation liquid discharge port (24).

2. The apparatus for surface passivation treatment of beryllium bronze strip as claimed in claim 1, wherein: The transmission roller group (5) consists of two fixed plates (6) and a rotating roller (7). The two fixed plates (6) are fixedly connected to the top of the main body (1) of the equipment. The two fixed plates (6) are rotatably connected by the rotating roller (7). The rotating roller (7) has a leakage groove (8) inside.

3. The apparatus for surface passivation of beryllium bronze strip of claim 1 wherein: The cleaning structure includes a connecting plate (21), which is fixedly connected between the inner walls of the surface cleaning tank (3) and the rinsing tank (4). A diverter (18) is fixedly installed on the top of the connecting plate (21). Side nozzles (19) are fixedly connected to both sides of the inner walls of the surface cleaning tank (3) and the rinsing tank (4). Two water pumps (17) are fixedly installed on the outside of the main body (1). The input ends of the two water pumps (17) extend into the interior of the alkaline degreasing agent solution chamber (12) and the deionized water solution chamber (13), respectively. The two output ends of the water pumps (17) are fixedly connected to the diverter (18) and the side nozzles (19), respectively. The output end of the diverter (18) extends to the bottom of the connecting plate (21).

4. The apparatus for surface passivation of beryllium bronze strip of claim 1 wherein: Both sides of the main body (1) of the equipment are fixedly connected to a drain port (16), and the two drain ports (16) are respectively connected to the surface cleaning tank (3) and the rinsing tank (4).

5. The apparatus for surface passivation of beryllium bronze strip of claim 1 wherein: Two agitators (11) are fixedly installed at the bottom of the passivation treatment tank (2).

6. The apparatus for surface passivation of beryllium bronze strip of claim 1 wherein: An alkaline degreasing agent injection port (14) and a deionized water injection port (15) are fixedly connected to the outside of the main body (1) of the device. The alkaline degreasing agent injection port (14) and the deionized water injection port (15) are respectively connected to the alkaline degreasing agent solution chamber (12) and the deionized water solution chamber (13).

7. The apparatus for surface passivation of beryllium bronze strip of claim 1 wherein: A guide ramp (20) is provided between the surface cleaning tank (3), the passivation treatment tank (2) and the rinsing tank (4) and at the top of the main body of the equipment (1).

8. The apparatus for surface passivation of beryllium bronze strip of claim 1 wherein: The passivation treatment tank (2) is filled with passivation liquid, and the main body of the equipment (1) is provided with a metering window (22) on the outside. The metering window (22) is used to observe the level of the passivation liquid.

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