CN213925017U - Automatic switching adding device for silane system of surface treatment machine - Google Patents
Automatic switching adding device for silane system of surface treatment machine Download PDFInfo
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- CN213925017U CN213925017U CN202023144448.0U CN202023144448U CN213925017U CN 213925017 U CN213925017 U CN 213925017U CN 202023144448 U CN202023144448 U CN 202023144448U CN 213925017 U CN213925017 U CN 213925017U
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Abstract
The utility model discloses an automatic switching adding device for a silane system of a surface treatment machine; belonging to the technical field of 5G equipment; the technical key points of the device comprise a silane tank for surface treatment, wherein the silane tank is respectively connected with a first liquid inlet pipe, a second liquid inlet pipe, a first liquid outlet pipe and a second liquid outlet pipe in a conducting manner; electromagnetic valves are respectively arranged on the first liquid inlet pipe, the second liquid inlet pipe, the first liquid outlet pipe and the second liquid outlet pipe on the side edge of the silane tank; each electromagnetic valve is respectively connected with the control terminal; a first silane adding unit is connected between the first liquid outlet pipe and the free end of the first liquid inlet pipe in a conduction manner, and a second silane adding unit is connected between the second liquid outlet pipe and the free end of the second liquid inlet pipe in a conduction manner; the first silane adding unit and the second silane adding unit are respectively connected with a cleaning backflow unit; the utility model aims to provide an automatic switching adding device for a silane system of a surface treatment machine, which has reasonable structure, convenient use and good effect; for use in a surface treating machine silane system.
Description
Technical Field
The utility model relates to a surface treatment machine silane system add the device, more specifically say, especially relate to an automatic switch-over adds device for surface treatment machine silane system.
Background
In the copper foil manufacturing process, the production order requires product structure change, different silane processes are needed for different products, the process adjustment consumes manpower and is long in time, the pipeline tank body needs to be cleaned again, and the production efficiency is very low. Electrolytic copper foil must be handled through the silane additive, and the production time is because silane section the place ahead is the washing section, often can bring the pure water into the silane section, leads to silane concentration to be diluted, can carry out silane addition after the concentration is not enough, makes silane concentration resume standard value, and the mode of using always at present is for using online detector or testing concentration via operating personnel. The use of on-line instrumentation, while accurate, adds virtually many costs, such as: the on-line detection equipment and consumables thereof, pipelines additionally prepared by the detection equipment, periodic correction cost, machine replacement and the like. However, the method of testing the copper foil has artificial errors such as inaccurate concentration detection, increased burden of personnel, sampling problem and the like, and reduces the stability of the copper foil surface treatment system.
At present, the cleaning technology of pipelines and tank bodies is manual cleaning, and the tank bodies are cleaned by using an external pure water pipe, so that the cleaning technology has the defects of high cost, possible additive retention in the tank bodies after the cleaning is finished, and secondary pollution hidden trouble.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the not enough of above-mentioned prior art, provide a rational in infrastructure, convenient to use and respond well automatic switch-over interpolation device for surface treatment machine silane system.
The technical scheme of the utility model is realized like this: an automatic switching adding device for a silane system of a surface treatment machine comprises a silane tank for surface treatment, wherein the liquid inlet end of the silane tank is respectively connected with a first liquid inlet pipe and a second liquid inlet pipe in a conducting manner, and the liquid outlet end of the silane tank is connected with a first liquid outlet pipe and a second liquid outlet pipe; electromagnetic valves are respectively arranged on the first liquid inlet pipe, the second liquid inlet pipe, the first liquid outlet pipe and the second liquid outlet pipe on the side edge of the silane tank; each electromagnetic valve is respectively connected with the control terminal.
A first silane adding unit is connected between the first liquid outlet pipe and the free end of the first liquid inlet pipe in a conduction manner, a second silane adding unit is connected between the second liquid outlet pipe and the free end of the second liquid inlet pipe in a conduction manner, and the first silane adding unit and the second silane adding unit are respectively connected with a control terminal; and the first silane adding unit and the second silane adding unit are respectively connected with a cleaning backflow unit, and before the first silane adding unit and the second silane adding unit are switched to be used, the adding unit and the silane tank which are in use are automatically cleaned through the corresponding cleaning backflow units.
In the foretell automatic switch-over adds device for surface treatment machine silane system, first silane adds the unit and includes the first feed jar that switches on with first feed liquor pipe and first drain pipe respectively, first feed jar feed end has first silane configuration jar through first feed pipe turn-on connection, is provided with a silicon metering pump on first feed pipe.
A first silicon supply pump and a first silicon filter element filter are sequentially arranged on a first liquid inlet pipe on the side edge of the discharge end of the first material supply tank along the material flowing direction; and the first silicon metering pump and the first silicon supply pump are respectively connected with the control terminal circuit.
In the foretell automatic switch-over adds device for surface treatment machine silane system, be provided with first level sensor on the first feed jar, first level sensor passes through signal line with first silicon measuring pump and is connected.
In the automatic switching and adding device for the silane system of the surface treatment machine, a first liquid inlet pipe between the first silicon supply pump and the first silicon filter element filter is in conduction connection with a first maintenance emergency pipe through a first three-way joint, and the first maintenance emergency pipe is in conduction connection with the first supply tank; and control valves are arranged on the first liquid inlet pipe and the first overhauling emergency pipe on two sides of the first three-way joint.
In the foretell automatic switch-over adds device for surface treatment machine silane system, second silane adds the unit and includes the second feed jar that switches on with second feed liquor pipe and second drain pipe respectively, second feed jar feed end has second silane configuration jar through second feed pipe turn-on connection, is provided with the second silicon metering pump on the second feed pipe.
A second silicon supply pump and a second silicon filter element filter are sequentially arranged on a second liquid inlet pipe on the side edge of the discharge end of the second material supply tank along the material flowing direction; and the second silicon metering pump and the second silicon supply pump are respectively connected with the control terminal circuit.
In the aforesaid a automatic switch-over adds device for surface treatment machine silane system, be provided with the second level sensor on the second feed jar, the second level sensor passes through signal line with second silicon measuring pump and is connected.
In the automatic switching and adding device for the silane system of the surface treatment machine, a second liquid inlet pipe between the second silicon supply pump and the second silicon filter element filter is in conduction connection with a second maintenance emergency pipe through a second three-way joint, and the second maintenance emergency pipe is in conduction connection with a second supply tank; and control valves are arranged on the second liquid inlet pipe and the second overhauling emergency pipe on two sides of the second three-way joint.
In the above automatic switching addition device for a silane system of a surface treatment machine, the cleaning reflux unit comprises a pure water inlet connected with an external pure water supply system, an ammonia water preparation tank, a sulfuric acid preparation tank, a pH sensor and a drain pipe, wherein the pure water inlet and the pH sensor are respectively arranged on a corresponding first supply tank or a corresponding second supply tank; the ammonia water preparation tank and the sulfuric acid preparation tank are respectively connected with the corresponding first supply tank or second supply tank through connecting pipes; each connecting pipe is provided with a feeding pump, and each feeding pump is connected with a corresponding pH value sensor through a signal line; the blow off pipe turn-on connection all is provided with the control valve in first feed tank or second feed tank bottom on each blow off pipe, each blow off pipe and outside waste liquid collecting pit turn-on connection.
The utility model adopts the above structure after, connect first silane respectively through setting up independent feed liquor pipe and drain pipe and add the unit and second silane adds the unit, realize different silanes through the solenoid valve on each feed liquor pipe and the drain pipe and add the fast switch-over between the unit. Simultaneously, for avoiding the interact of different silane, through setting up the washing backward flow unit, add the unit and carry out self-cleaning to the interpolation unit and the silane groove that are using before two add the unit switch to guarantee the accuracy that silane added.
Drawings
The present invention will be described in further detail with reference to the following examples, which are not intended to limit the invention.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a silane tank; 2. a first liquid inlet pipe; 3. a second liquid inlet pipe; 4. a first liquid outlet pipe; 5. a second liquid outlet pipe; 6. an electromagnetic valve; 7. a first silane addition unit; 7a, a first supply tank; 7b, a first feeding pipe; 7c, a first silane preparation tank; 7d, a first silicon metering pump; 7e, a first silicon supply pump; 7f, a first silicon cartridge filter; 7g, a first liquid level sensor; 7h, a first maintenance emergency pipe; 8. a second silane addition unit; 8a, a second feeding tank; 8b, a second feeding pipe; 8c, a second silane preparation tank; 8d, a second silicon metering pump; 8e, a second silicon supply pump; 8f, a second silicon cartridge filter; 8g, a second liquid level sensor; 8h, second overhauling emergency pipes; 9. cleaning the reflux unit; 9a, a pure water access end; 9b, an ammonia water preparation tank; 9c, a sulfuric acid preparation tank; 9d, a pH value sensor; 9e, a sewage discharge pipe; 9f, a connecting pipe; 9g, supply pump.
Detailed Description
Referring to fig. 1, the automatic switching adding device for a silane system of a surface treatment machine of the present invention comprises a silane tank 1 for surface treatment, wherein a liquid inlet end of the silane tank 1 is respectively connected with a first liquid inlet pipe 2 and a second liquid inlet pipe 3 in a conducting manner, and a liquid outlet end is connected with a first liquid outlet pipe 4 and a second liquid outlet pipe 5; electromagnetic valves 6 are respectively arranged on the first liquid inlet pipe 2, the second liquid inlet pipe 3, the first liquid outlet pipe 4 and the second liquid outlet pipe 5 on the side edge of the silane tank 1; each solenoid valve 6 is connected with a control terminal.
A first silane adding unit 7 is connected between the free ends of the first liquid outlet pipe 4 and the first liquid inlet pipe 2 in a conduction manner, a second silane adding unit 8 is connected between the free ends of the second liquid outlet pipe 5 and the second liquid inlet pipe 3 in a conduction manner, and the first silane adding unit 7 and the second silane adding unit 8 are respectively connected with a control terminal; the first silane adding unit 7 and the second silane adding unit 8 are respectively connected with a cleaning backflow unit 9, and before the first silane adding unit 7 and the second silane adding unit 8 are switched to be used, the adding unit and the silane tank 1 which are used are automatically cleaned through the corresponding cleaning backflow unit 9.
Preferably, in this embodiment, the first silane adding unit 7 includes a first feeding tank 7a respectively communicated with the first liquid inlet pipe 2 and the first liquid outlet pipe 4, a first silane configuration tank 7c is connected to a feeding end of the first feeding tank 7a through a first feeding pipe 7b, and a first silicon metering pump 7d is disposed on the first feeding pipe 7 b.
A first silicon supply pump 7e and a first silicon filter element filter 7f are sequentially arranged on the first liquid inlet pipe 2 at the side edge of the discharge end of the first material supply tank 7a along the material flowing direction; and the first silicon metering pump 7d and the first silicon supply pump 7e are respectively connected with a control terminal circuit.
Further preferably, a first liquid level sensor 7g is arranged on the first supply tank 7a, and the first liquid level sensor 7g is connected with the first silicon metering pump 7d through a signal line. Through setting up first level sensor, realize the automatic work of first silicon measuring pump.
Meanwhile, a first liquid inlet pipe 2 between the first silicon supply pump 7e and the first silicon filter element filter 7f is in conduction connection with a first maintenance emergency pipe 7h through a first three-way joint, and the first maintenance emergency pipe 7h is in conduction connection with a first material supply tank 7 a; and control valves are arranged on the first liquid inlet pipe 2 and the first overhauling emergency pipe 7h on two sides of the first three-way joint. The first emergent pipe of overhauing sets up, when being convenient for break down at first silicon filter core filter, perhaps when silane groove breaks down temporarily, in the material conveying back first feed tank of supplying silicon pump output.
Preferably, the second silane adding unit 8 comprises a second feeding tank 8a respectively communicated with the second liquid inlet pipe 3 and the second liquid outlet pipe 5, a feeding end of the second feeding tank 8a is in communication connection with a second silane configuration tank 8c through a second feeding pipe 8b, and a second silicon metering pump 8d is arranged on the second feeding pipe 8 b.
A second silicon supply pump 8e and a second silicon filter element filter 8f are sequentially arranged on the second liquid inlet pipe 3 at the side edge of the discharge end of the second material supply tank 8a along the material flowing direction; and the second silicon metering pump 8d and the second silicon supply pump 8e are respectively connected with a control terminal circuit.
Further preferably, a second liquid level sensor 8g is disposed on the second supply tank 8a, and the second liquid level sensor 8g is connected to the second silicon metering pump 8d through a signal line. And the second liquid level sensor is arranged, so that the automatic work of the second silicon metering pump is realized.
Meanwhile, a second liquid inlet pipe 3 between a second silicon supply pump 8e and a second silicon filter element filter 8f is in conduction connection with a second maintenance emergency pipe 8h through a second three-way joint, and the second maintenance emergency pipe 8h is in conduction connection with a second material supply tank 8 a; and control valves are arranged on the second liquid inlet pipe 3 and the second overhauling emergency pipe 8h on two sides of the second three-way joint. The setting of the second maintenance emergency pipe is convenient for when the second silicon filter element filter breaks down, or when the silane groove breaks down temporarily, the material that the second supplied the silicon pump to output is conveyed back to the second feed tank.
Preferably, in the present embodiment, the cleaning reflux unit 9 includes a pure water inlet 9a connected to an external pure water supply system, an ammonia water preparation tank 9b, a sulfuric acid preparation tank 9c, a pH sensor 9d, and a drain pipe 9e, the pure water inlet 9a and the pH sensor 9d being respectively disposed on the corresponding first supply tank 7a or second supply tank 8 a; the ammonia water preparation tank 9b and the sulfuric acid preparation tank 9c are respectively connected with the corresponding first feed tank 7a or second feed tank 8a through a connecting pipe 9 f; each connecting pipe 9f is provided with a feeding pump 9g, and each feeding pump 9g is connected with a corresponding pH value sensor 9d through a signal line; blow off pipe 9e turn-on connection all is provided with the control valve in first feed jar 7a or second feed jar 8a bottom on each blow off pipe 9e, each blow off pipe 9e and outside waste liquid collecting pit turn-on connection.
The pure water incoming end on the corresponding supply tank is in conduction connection with an external pure water source, so that the pure water is supplied automatically or manually. The implementation manner is the prior art, and is not described herein again. And during cleaning, the corresponding silicon supply pump is used for circularly flowing and cleaning pure water between the corresponding silane adding unit and the silane tank, and the cleaned pure water is discharged to an external waste liquid collecting tank from the corresponding drain pipe. Through self-cleaning, guarantee abluent quality. In this embodiment, an operator is required to place pure water into the tank and then actuate the silicon supply pump. The cleaning process is automatically completed by a designed program.
The above is the innovative part of the present invention, and of course, in this embodiment, each pipeline also includes various structures which are conventional in the art. For example, the feed tank is provided with a stirring paddle which is rotated at a low speed to uniformly mix the solution in the tank. And the feeding and discharging ends of the silicon supply pump are provided with emergency discharge pipelines. Pressure gauges are arranged at two ends of the silicon filter element filter to judge whether the silicon filter element filter works normally or not and whether blockage exists or not.
The working principle is as follows:
first, the first set of silane addition units operates:
(1) when the first silane adding unit is operated, the pH value of the first feeding tank is greater than 8, the first liquid level sensor detects that the liquid level in the tank is not at the upper limit, the first metering pump is started to add silane from the first silane preparation tank, and the first metering pump is closed when the pH value is lower than 6.
(2) The stirring motor of the first feeding tank is always in a running state;
(3) a first silicon supply pump motor is started, silane liquid is conveyed to a silane tank through a first silicon filter element filter, and the pressure of a pressure sensor of the first silicon filter element filter is less than 0.15 Mpa;
(4) and closing the electromagnetic valve of the second set of silane adding unit connected with the silane tank.
Second, second set of silane addition unit operation:
(1) when the second set of silane adding unit is operated, the pH value of the second feeding tank is larger than 8, the second liquid level sensor detects that the liquid level in the tank is not at the upper limit, the second metering pump is started to add silane from the second silane preparation tank, and the second metering pump is closed when the pH value is lower than 6.
(2) The stirring motor of the second feeding tank is always in a running state;
(3) a second silicon supply pump motor is started, silane liquid is conveyed to a silane tank through a second silicon filter element filter, and the pressure of a pressure sensor of the second silicon filter element filter is less than 0.15 Mpa;
(4) and closing the electromagnetic valve connecting the first set of silane adding unit and the silane tank.
Thirdly, cleaning a first set of silane addition unit:
(1) when the first set of silane addition units are cleaned, pure water is manually injected into the first feed tank; and adding acid and alkaline buffer solution to prepare a cleaning solution according to the pH setting.
(2) The stirring motor of the first feeding tank is always in a running state, and the wall of the tank is fully stirred and cleaned;
(3) a first silicon supply pump motor is used as a pure water conveying motor, and after the first silicon supply pump motor is started, pure water is conveyed to a silane tank through a first silicon filter element filter, and the cleaning time is 5 minutes;
(4) the second set of silane addition unit solenoid valves was closed.
Fourthly, cleaning a second set of system:
(1) when the second set of silane addition unit is cleaned, pure water is manually injected into the second feed tank; and adding acid and alkaline buffer solution to prepare a cleaning solution according to the pH setting.
(2) The stirring motor of the second feeding tank is always in a running state, and the wall of the tank is fully stirred and cleaned;
(3) a second silicon supply pump motor is used as a pure water conveying motor, and the pure water is conveyed to the silane tank through a second silicon filter element filter after being started, and the cleaning time is 5 minutes;
(4) and closing the electromagnetic valve connecting the first set of silane adding unit and the silane tank.
Fifthly, switching the operation of the first set of silane addition unit to the operation of the second set of silane addition unit:
(1) stopping the operation of the first set of silane addition units;
(2) cleaning the first set of silane adding units;
(3) operating a second set of silane addition units;
sixthly, switching the operation of the second set of silane addition unit to the operation of the first set of silane addition unit:
(1) stopping the second set of silane addition units;
(2) cleaning the second set of silane addition unit;
(3) the first set of silane addition units was run.
The above embodiment is the preferred embodiment of the present invention, which is only used to facilitate the explanation of the present invention, it is not right to the present invention, which makes the restriction on any form, and any person who knows commonly in the technical field can use the present invention to make the equivalent embodiment of local change or modification without departing from the technical features of the present invention.
Claims (8)
1. An automatic switching adding device for a silane system of a surface treatment machine comprises a silane tank (1) for surface treatment, and is characterized in that the liquid inlet end of the silane tank (1) is respectively connected with a first liquid inlet pipe (2) and a second liquid inlet pipe (3) in a conducting manner, and the liquid outlet end of the silane tank is connected with a first liquid outlet pipe (4) and a second liquid outlet pipe (5); electromagnetic valves (6) are respectively arranged on the first liquid inlet pipe (2), the second liquid inlet pipe (3), the first liquid outlet pipe (4) and the second liquid outlet pipe (5) on the side edge of the silane tank (1); each electromagnetic valve (6) is respectively connected with a control terminal;
a first silane adding unit (7) is connected between the free ends of the first liquid outlet pipe (4) and the first liquid inlet pipe (2) in a conduction manner, a second silane adding unit (8) is connected between the free ends of the second liquid outlet pipe (5) and the second liquid inlet pipe (3) in a conduction manner, and the first silane adding unit (7) and the second silane adding unit (8) are respectively connected with a control terminal; and the first silane adding unit (7) and the second silane adding unit (8) are respectively connected with a cleaning backflow unit (9), and before the first silane adding unit (7) and the second silane adding unit (8) are switched to be used, the adding unit and the silane tank (1) which are in use are automatically cleaned through the corresponding cleaning backflow unit (9).
2. The automatic switching adding device for the silane system of the surface treatment machine according to claim 1, wherein the first silane adding unit (7) comprises a first feed tank (7a) respectively communicated with the first liquid inlet pipe (2) and the first liquid outlet pipe (4), the feed end of the first feed tank (7a) is communicated and connected with a first silane configuration tank (7c) through a first feed pipe (7b), and a first silicon metering pump (7d) is arranged on the first feed pipe (7 b);
a first silicon supply pump (7e) and a first silicon filter element filter (7f) are sequentially arranged on the first liquid inlet pipe (2) at the side edge of the discharge end of the first supply tank (7a) along the material flowing direction; and the first silicon metering pump (7d) and the first silicon supply pump (7e) are respectively connected with the control terminal circuit.
3. The automatic switching adding device for the silane system of the surface treatment machine according to claim 2, wherein a first liquid level sensor (7g) is arranged on the first supply tank (7a), and the first liquid level sensor (7g) is connected with a first silicon metering pump (7d) through a signal line.
4. The automatic switching and adding device for the silane system of the surface treatment machine is characterized in that a first maintenance emergency pipe (7h) is in conduction connection with a first liquid inlet pipe (2) between the first silicon supply pump (7e) and the first silicon filter element filter (7f) through a first three-way joint, and the first maintenance emergency pipe (7h) is in conduction connection with a first supply tank (7 a); and control valves are arranged on the first liquid inlet pipe (2) and the first overhauling emergency pipe (7h) on two sides of the first three-way joint.
5. The automatic switching adding device for the silane system of the surface treatment machine according to claim 1, wherein the second silane adding unit (8) comprises a second feeding tank (8a) respectively communicated with a second liquid inlet pipe (3) and a second liquid outlet pipe (5), the feeding end of the second feeding tank (8a) is communicated and connected with a second silane configuration tank (8c) through a second feeding pipe (8b), and a second silicon metering pump (8d) is arranged on the second feeding pipe (8 b);
a second silicon supply pump (8e) and a second silicon filter element filter (8f) are sequentially arranged on the second liquid inlet pipe (3) at the side edge of the discharge end of the second supply tank (8a) along the material flowing direction; and the second silicon metering pump (8d) and the second silicon supply pump (8e) are respectively connected with the control terminal circuit.
6. The automatic switching and adding device for the silane system of the surface processing machine according to claim 5, wherein a second liquid level sensor (8g) is arranged on the second supply tank (8a), and the second liquid level sensor (8g) is connected with a second silicon metering pump (8d) through a signal line.
7. The automatic switching and adding device for the silane system of the surface treatment machine is characterized in that a second maintenance emergency pipe (8h) is connected to a second liquid inlet pipe (3) between a second silicon supply pump (8e) and a second silicon filter element filter (8f) in a conduction mode through a second three-way joint, and the second maintenance emergency pipe (8h) is connected to a second supply tank (8a) in a conduction mode; and control valves are arranged on the second liquid inlet pipe (3) and the second overhauling emergency pipe (8h) on two sides of the second three-way joint.
8. The automatic switching and adding device for the silane system of the surface treatment machine is characterized in that the cleaning and refluxing unit (9) comprises a pure water inlet (9a) connected with an external pure water supply system, an ammonia water preparation tank (9b), a sulfuric acid preparation tank (9c), a pH value sensor (9d) and a drain pipe (9e), wherein the pure water inlet (9a) and the pH value sensor (9d) are respectively arranged on a corresponding first feeding tank (7a) or a corresponding second feeding tank (8 a); the ammonia water preparation tank (9b) and the sulfuric acid preparation tank (9c) are respectively connected with the corresponding first feeding tank (7a) or second feeding tank (8a) through connecting pipes (9 f); each connecting pipe (9f) is provided with a feeding pump (9g), and each feeding pump (9g) is connected with a corresponding pH value sensor (9d) through a signal line; blow off pipe (9e) turn-on connection all is provided with the control valve in first feed jar (7a) or second feed jar (8a) bottom on each blow off pipe (9e), each blow off pipe (9e) and outside waste liquid collecting pit turn-on connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023144448.0U CN213925017U (en) | 2020-12-24 | 2020-12-24 | Automatic switching adding device for silane system of surface treatment machine |
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| CN202023144448.0U CN213925017U (en) | 2020-12-24 | 2020-12-24 | Automatic switching adding device for silane system of surface treatment machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114369819A (en) * | 2021-12-31 | 2022-04-19 | 九江德福科技股份有限公司 | Constant concentration control device and method for surface silanization treatment of electronic circuit copper foil |
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2020
- 2020-12-24 CN CN202023144448.0U patent/CN213925017U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114369819A (en) * | 2021-12-31 | 2022-04-19 | 九江德福科技股份有限公司 | Constant concentration control device and method for surface silanization treatment of electronic circuit copper foil |
| CN114369819B (en) * | 2021-12-31 | 2023-11-28 | 九江德福科技股份有限公司 | Constant concentration control device and method for surface silanization treatment of electronic circuit copper foil |
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Denomination of utility model: An automatic switching and adding device for silane system of surface processor Effective date of registration: 20211214 Granted publication date: 20210810 Pledgee: Meizhou branch of China Construction Bank Co.,Ltd. Pledgor: GUANGDONG CHAOHUA TECHNOLOGY CO.,LTD. Registration number: Y2021980015009 |