CN217118950U - Online sterilizing equipment of pyrophosphate copper plating bath - Google Patents

Online sterilizing equipment of pyrophosphate copper plating bath Download PDF

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Publication number
CN217118950U
CN217118950U CN202123034710.0U CN202123034710U CN217118950U CN 217118950 U CN217118950 U CN 217118950U CN 202123034710 U CN202123034710 U CN 202123034710U CN 217118950 U CN217118950 U CN 217118950U
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box body
ultraviolet
side wall
electroplating
feed inlet
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CN202123034710.0U
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王明树
陈来方
张勇
景佰亨
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Changzhou Feirongda Electronic Material Co ltd
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Changzhou Feirongda Electronic Material Co ltd
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Abstract

The utility model discloses an online sterilizing device for copper pyrophosphate plating solution, which comprises a closed annular loop formed by a plating bath, an ultraviolet sterilizing device, a first circulating filter, a storage tank and a second circulating filter which are connected in sequence; a feed inlet of the electroplating bath is continuously supplemented with new electroplating solution, the old electroplating solution is continuously discharged from an overflow port of the electroplating bath and enters the ultraviolet sterilization device, and the new electroplating solution becomes the new electroplating solution after twice circulating filtration and enters the electroplating bath again, so that an online sterilization mode is formed in a circulating manner; the ultraviolet rays are utilized for sterilization, the performance of the electroplating solution is not reduced, the production cost can be saved, and the electroplating quality is improved. In addition, for improving the sterilization quality, the baffle with the inclined plane is arranged in the box body of the ultraviolet sterilization device, and the electroplating solution is a thin layer when flowing on the inclined plane, so that the ultraviolet rays above the electroplating solution can penetrate through the electroplating solution layer to effectively sterilize.

Description

Online sterilizing equipment of pyrophosphate copper plating solution
Technical Field
The utility model relates to a pyrophosphate copper plating solution online sterilization device, in particular to a pyrophosphate copper plating solution online sterilization device using ultraviolet sterilization.
Background
The copper pyrophosphate is a main salt for supplying copper ions to the plating solution, white spherical mould mucus is generated in the production process of the copper pyrophosphate plating solution, and the mucus is attached to the surface of a product to cause poor quality, so the copper pyrophosphate plating solution online sterilization device and the method are concerned. At present, the traditional copper pyrophosphate plating solution sterilization device and method have the following two types:
the method comprises the following steps: the pyrophosphate copper plating solution is insulated for a certain time at the temperature of more than 70 ℃. High-temperature sterilization is utilized, and production stop treatment is usually required, so that normal production operation is influenced, and the production efficiency is reduced. Meanwhile, under a high-temperature environment, pyrophosphate radicals in the plating solution can be converted into orthophosphate radicals, so that the aging of the plating solution is accelerated, the service life is shortened, and the production cost is increased.
The method 2 comprises the following steps: adding a proper amount of hydrogen peroxide or formaldehyde into the copper pyrophosphate plating solution. The hydrogen peroxide and formaldehyde are used for sterilization, so that the mold is suppressed, but the dispersion performance and the coating efficiency of the coating solution are reduced, the appearance and the coating performance of the product are influenced, and the quality control and management of the product are not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a pyrophosphate copper plating solution online sterilization device, it utilizes the ultraviolet ray to disinfect, does not reduce the plating solution performance to overcome above-mentioned prior art not enough.
The above technical purpose of the present invention can be achieved by the following technical solutions: comprises an electroplating bath, an ultraviolet sterilization device, a first circulating filter, a storage tank and a second circulating filter; the plating bath is equipped with overflow mouth and first feed inlet, ultraviolet germicidal device both ends branch is equipped with second feed inlet and second discharge gate, the second feed inlet is less than the overflow mouth, the overflow mouth with the second feed inlet passes through the pipe connection, the second discharge gate with the pipe connection is used to first circulation filter's feed inlet, first circulation filter's discharge gate with the feed inlet of holding vessel passes through the pipe connection of taking the drawing liquid pump, the discharge gate of holding vessel with the feed inlet of second circulation filter passes through the pipe connection, the discharge gate of second circulation filter with first feed inlet passes through the pipe connection of taking the drawing liquid pump.
Preferably, the ultraviolet sterilization device comprises a box body, the box body is arranged to be opaque, and a plurality of ultraviolet lamps are arranged at the top in the box body; the box body comprises a first side wall, a second side wall, a third side wall and a fourth side wall which are sequentially connected into a whole, and a partition plate is arranged in the box body; the baffle is including connecting gradually first vertical section, slope section, the vertical section of second as an organic whole, the front end of first vertical section with the rear end of the vertical section of second all with the bottom surface of box is connected, wherein, first vertical section is close to the first lateral wall of box and looks interval with it, the vertical section of second with the third lateral wall interval of box, the both sides of baffle respectively with the second lateral wall and the fourth lateral wall of box are connected, the front end of slope section is higher than its rear end, the first lateral wall of box is equipped with the second feed inlet, the third lateral wall of box is equipped with the second discharge gate, the second discharge gate is less than the slope section of baffle.
Preferably, the horizontal inclination angle of the inclined section of the partition is set to 2-10 °.
Preferably, the wavelength of the ultraviolet lamp light source is set to 250nm to 270 nm.
Preferably, the number of the ultraviolet lamps is set to be 1.8W-2.5W/m 3
Preferably, the box body and the partition plate are made of metal titanium, and the thickness of the box body is set to be 2.5 mm.
Preferably, the connecting pipes are provided with valves.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the ultraviolet rays are utilized for sterilization, so that the temperature rise operation is not needed while the effective sterilization is realized, the bactericide is not needed to be added, and the performance of the electroplating solution is not reduced; the electroplating bath is provided with an overflow port and a feed port, the feed port is always kept in a feeding state, new electroplating solution is continuously supplemented, old electroplating solution is continuously discharged from the overflow port and enters the sterilizing device, and the new electroplating solution becomes new electroplating solution and enters the electroplating bath again after twice circulating filtration, so that an online sterilization mode is formed by the circulation, and the shutdown sterilization operation is not needed; saving production cost and improving electroplating quality.
2. The ultraviolet sterilization device has the advantages of simple structure, good sterilization performance, reasonable design and durability. The ultraviolet sterilization device in the utility model preferably arranges the clapboard with the inclined plane in the box body, the electroplating solution flows to the outlet end along the inclined plane, and the electroplating solution is a thin layer when flowing on the inclined plane, thereby being beneficial to the ultraviolet ray above the electroplating solution to penetrate through the electroplating solution layer for effective sterilization; preferably, the box body material and the partition plate material are made of metal titanium, so that the aging phenomenon of the materials caused by ultraviolet radiation can be effectively avoided.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the ultraviolet sterilizer shown in FIG. 1
In the figure: 1. an electroplating bath; 11. an overflow port; 12. a first feed port; 2. an ultraviolet sterilization device; 24. a second feed port; 25. a second discharge port; 3. a first circulating filter; 4. a storage tank; 5. a second circulating filter; 21. a box body; 22. an ultraviolet lamp; 23. a partition plate; 231. a first vertical section; 232. an inclined section; 233. a second vertical section.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.
As shown in fig. 1-2, the utility model provides an online sterilizing device for copper pyrophosphate plating solution, which comprises an electroplating bath 1, an ultraviolet sterilizing device 2, a first circulating filter 3, a storage tank 4 and a second circulating filter 5; the plating bath 1 is equipped with overflow mouth 11 and first feed inlet 12, 2 both ends branch of ultraviolet germicidal device are equipped with second feed inlet 24 and second discharge gate 25, second feed inlet 24 is less than overflow mouth 11, overflow mouth 11 passes through the pipe connection with second feed inlet 24, second discharge gate 25 and the pipe connection for the feed inlet of first circulation filter 3, the discharge gate of first circulation filter 3 and the feed inlet of holding vessel 4 pass through the pipe connection of taking the drawing liquid pump, the discharge gate of holding vessel 4 with the feed inlet of second circulation filter 5 passes through the pipe connection, the discharge gate of second circulation filter 5 with first feed inlet 12 passes through the pipe connection of taking the drawing liquid pump. Among them, the plating tank, the storage tank dedicated for plating solution and the circulating filter are common devices in the plating industry, and are known structures, which are not described herein.
The working principle of the utility model is that the first feed inlet of the plating bath continuously replenishes new plating solution all the time, and the overflow port of the plating bath continuously cuts off old plating solution to maintain the stability of the liquid level in the plating bath; the electroplating solution flowing out of the electroplating bath flows into the ultraviolet sterilization device under the action of gravity, is subjected to ultraviolet sterilization and then is pumped in by the first circulating filter with the liquid pump for filtering and impurity removal; and pumping the waste water into a storage tank by a liquid pump in an external pipeline, naturally settling impurities, supplementing the waste water as a stock solution, filtering the waste water again by a second circulating filter to remove impurities, and pumping the waste water into an electroplating bath by the liquid pump in the external pipeline, thereby forming an online sterilization mode. The ultraviolet sterilization is utilized, so that the temperature rise operation is not needed while the effective sterilization is carried out, the bactericide is not needed to be added, and the performance of the electroplating solution is not reduced.
Further, the ultraviolet sterilization device 2 comprises a box body 21, the box body 21 is made to be opaque, and the top inside the box body 21 is provided with a plurality of ultraviolet lamps 22; the box body 21 comprises a first side wall, a second side wall, a third side wall and a fourth side wall which are sequentially connected into a whole, and a partition plate 23 is arranged in the box body 21; the partition 23 includes a first vertical section 231, an inclined section 232, and a second vertical section 233 which are connected in sequence as a whole, the front end of the first vertical section 231 and the rear end of the second vertical section 233 are both connected with the bottom surface of the box 21, wherein the first vertical section 231 is close to the first sidewall of the box 21 and is spaced apart from the first sidewall, the second vertical section 233 is spaced apart from the third sidewall of the box 21, two sides of the partition 23 are respectively connected with the second sidewall and the fourth sidewall of the box, the front end of the inclined section 232 is higher than the rear end thereof, the first sidewall of the box 21 is provided with a second feed port 24, the third sidewall of the box 21 is provided with a second discharge port 25, and the second discharge port 25 is lower than the inclined section 232 of the partition 23. After the arrangement, the box body is divided into two cavities with upper ends communicated by the partition board, when the electroplating solution in the cavity at the feed inlet reaches a certain height, the electroplating solution flows into the cavity at the discharge outlet along the inclined section of the partition board and then flows out, and because the flowing liquid layer formed by the electroplating solution on the plane of the inclined section is thinner, the ultraviolet rays can penetrate through the liquid layer conveniently, so that effective sterilization can be realized, and if the flowing time of the electroplating solution on the plane of the inclined section is longer, the sterilization time is longer. Further, the horizontal inclined included angle of the inclined section can be set to be 2-10 degrees, and proper flow velocity is ensured. The ultraviolet sterilization device designed in this way is simple and easy to obtain, the box body can be set into a combined body assembled by the box body with an open top, the box cover and the locking device in order to facilitate the maintenance of the ultraviolet lamp and the cleaning of the inside of the ultraviolet sterilization device, and the ultraviolet lamp is arranged on the lower end face of the box cover.
Furthermore, the wavelength of the light source of the ultraviolet lamp 22 in the ultraviolet sterilization device 2 is set to be 250-270nm, and the strongest peak of the ultraviolet absorption of deoxyribonucleic acid (DNA), ribonucleic acid (RNA) and nucleoprotein in the bacteria is 254-257nm, so the ultraviolet sterilization effect at 250-270nm is better. The wavelength of the low-pressure mercury lamp is 253.7nm as an alternative.
Further, the number of the ultraviolet lamps 22 is set to 1.8W-2.5W/m 3 . According to the national standard GB19258-2012, and the national disinfection technical specification: the indoor suspension type ultraviolet disinfection lamp installation quantity is: average of not less than 1.5W per cubic meter. The liquid as a sterilization object requires higher irradiation intensity than air, and therefore, the number of ultraviolet lamps is set to 1.8W-2.5W/m 3 The intensity of ultraviolet irradiation is ensured, and the waste of energy is avoided.
Further, the box body 21 and the partition 23 are made of titanium, and the thickness of the box body is 2.5 mm. The metal titanium belongs to transition metal with strong corrosion resistance, does not react with copper pyrophosphate electroplating solution chemically, and can resist the aging phenomenon caused by ultraviolet irradiation, so the metal titanium is suitable for being used as a box body material of an ultraviolet sterilization device; the thickness of the titanium plate of 2.5mm is set to meet the pressure-bearing strength required by the ultraviolet sterilization device.
Further, all connecting pipelines are provided with valves, so that maintenance and repair are facilitated.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. An online sterilizing device of pyrophosphate copper plating solution is characterized in that: comprises an electroplating bath (1), an ultraviolet sterilization device (2), a first circulating filter (3), a storage tank (4) and a second circulating filter (5); the electroplating bath (1) is provided with an overflow port (11) and a first feeding hole (12), a second feed inlet (24) and a second discharge outlet (25) are respectively arranged at the two ends of the ultraviolet sterilization device (2), the second feed inlet (24) is lower than the overflow port (11), the overflow port (11) is connected with the second feed inlet (24) through a pipeline, the second discharge hole (25) is connected with the feed inlet of the first circulating filter (3) by a pipeline, the discharge hole of the first circulating filter (3) is connected with the feed inlet of the storage tank (4) through a pipeline with a liquid pump, the discharge hole of the storage tank (4) is connected with the feed hole of the second circulating filter (5) through a pipeline, the discharge hole of the second circulating filter (5) is connected with the first feed hole (12) through a pipeline with a liquid pump.
2. The on-line sterilization device for the pyrophosphate copper plating solution as set forth in claim 1, characterized in that: the ultraviolet sterilization device (2) comprises a box body (21), the box body (21) is arranged to be opaque, and a plurality of ultraviolet lamps (22) are arranged at the top in the box body (21); the box body (21) comprises a first side wall, a second side wall, a third side wall and a fourth side wall which are sequentially connected into a whole, and a partition plate (23) is arranged in the box body (21); the clapboard (23) comprises a first vertical section (231), an inclined section (232) and a second vertical section (233) which are connected into a whole in sequence, the front end of the first vertical section (231) and the rear end of the second vertical section (233) are both connected with the bottom surface of the box body (21), wherein the first vertical section (231) is adjacent to and spaced from a first side wall of the tank (21), the second upright section (233) being spaced from a third sidewall of the box (21), two sides of the clapboard (23) are respectively connected with the second side wall and the fourth side wall of the box body, the front end of the inclined section (232) is higher than the rear end thereof, the first side wall of the box body (21) is provided with a second feed inlet (24), a second discharge hole (25) is formed in the third side wall of the box body (21), and the second discharge hole (25) is lower than the inclined section (232) of the partition plate (23).
3. The on-line sterilizing device for the pyrophosphate copper plating solution as set forth in claim 2, characterized in that: the horizontal inclination angle of the inclined section (232) of the partition (23) is set to 2-10 degrees.
4. The on-line sterilizing device for the pyrophosphate copper plating solution as set forth in claim 3, characterized in that: the wavelength of the light source of the ultraviolet lamp (22) is set to be 250nm-270 nm.
5. The on-line sterilization device for the pyrophosphate copper plating solution as set forth in claim 4, characterized in that: the number of the ultraviolet lamps (22) is set to be 1.8W-2.5W/m 3
6. The on-line sterilizing device for the pyrophosphate copper plating solution as set forth in claim 2, characterized in that: the box body (21) and the partition plate (23) are both made of metal titanium, and the thickness of the box body is set to be 2.5 mm.
7. The on-line sterilization device for the pyrophosphate copper plating solution as set forth in claim 1, characterized in that: the pipelines are provided with valves.
CN202123034710.0U 2021-12-03 2021-12-03 Online sterilizing equipment of pyrophosphate copper plating bath Active CN217118950U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123034710.0U CN217118950U (en) 2021-12-03 2021-12-03 Online sterilizing equipment of pyrophosphate copper plating bath

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123034710.0U CN217118950U (en) 2021-12-03 2021-12-03 Online sterilizing equipment of pyrophosphate copper plating bath

Publications (1)

Publication Number Publication Date
CN217118950U true CN217118950U (en) 2022-08-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123034710.0U Active CN217118950U (en) 2021-12-03 2021-12-03 Online sterilizing equipment of pyrophosphate copper plating bath

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CN (1) CN217118950U (en)

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