Silane spraying device for copper foil

Abstract

The utility model belongs to the technical field of electronic material copper foil production, and particularly relates to a silane spraying device for copper foil, which comprises a circulation box, a liquid inlet pipe, a spraying pipe, a recovery tank, a recovery pipe and a liquid supplementing system, a third liquid outlet is arranged at the bottom of the liquid distribution box, and the third liquid outlet is connected with a second liquid inlet through a liquid supplementing pipe; and the metering pump and the flow detection device are arranged on the liquid supplementing pipe. The liquid supplementing system is used for supplementing and adding spraying liquid into the circulating box according to production requirements, and the liquid supplementing system is provided with a metering pump and a flow detection device, so that quantitative feeding can be achieved. The circulating box is used for providing stable spraying liquid for spraying on one hand and receiving recycling liquid from the recycling tank on the other hand. According to the device, the recovery tank for receiving redundant spraying liquid is arranged below the spraying pipe, so that the spraying liquid can be recycled, waste is avoided, and the production cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electronic material copper foil production, concretely relates to a silane spraying device for copper foil. BACKGROUND

[0002] Silanization treatment is the last process of standard copper foil surface treatment, and its principle is that silane is hydrolyzed and quickly adsorbed on the metal surface through the condensation reaction of SiOH group and CuOH group on the copper surface. On the one hand, silane forms Si-O-Cu covalent bond on the copper foil interface; on the other hand, the remaining silane molecules form silane film with Si-O-Si three-dimensional network structure on the metal surface through the condensation reaction between SiOH groups. The silane film is combined together with the electrophoretic paint or powder in the later process through cross-linking reaction in the drying process, forming a firm chemical bond. In this way, a stable film layer structure can be formed between the substrate, silane and copper foil through chemical bond. Therefore, silanization treatment can effectively improve the film-substrate adhesion of standard copper foil, thereby improving the peel strength of copper foil. The silanization process has a significant influence on the oxidation resistance and peel resistance of copper foil.

[0003] In the silanization treatment process, there are two technical difficulties: 1. Precise replenishment of silane is the key to surface treatment. If the continuous and stable replenishment of silane coupling agent cannot be accurately controlled during the surface treatment process, the peel resistance of copper foil will be uneven; 2. The excess silane sprayed cannot be effectively recovered, causing waste of silane and increasing production cost. UTILITY MODEL CONTENTS

[0004] In view of the technical problem in the prior art that the spraying amount of silane coupling agent needs to be continuously and accurately controlled, the utility model provides a silane spraying device for copper foil, and the utility model specifically includes the following technical contents:

[0005] A silane spraying device for copper foil, comprising a circulating tank, a liquid inlet pipe, a spraying pipe, a recovery tank, a recovery pipe and a liquid replenishing system, the upper part of the circulating tank is provided with a first liquid inlet and a second liquid inlet, and the side or bottom of the circulating tank is provided with a first liquid outlet; the bottom end of the liquid inlet pipe is connected with the first liquid outlet, and the upper end is connected with the spraying pipe; a plurality of spraying openings are arranged on the spraying pipe; the recovery tank is arranged below the spraying pipe, and the length and width of the recovery tank are greater than those of the spraying pipe; the bottom of the recovery tank is provided with a second liquid outlet, and the second liquid outlet is connected with the first liquid inlet through a recovery pipe; the liquid replenishing system comprises a liquid preparation tank, a liquid replenishing pipe, a metering pump and a flow detection device, the bottom of the liquid preparation tank is provided with a third liquid outlet, the third liquid outlet is connected with the second liquid inlet through a liquid replenishing pipe, and the metering pump and the flow detection device are arranged on the liquid replenishing pipe.

[0006] Further, the circulating tank is arranged below the recovery tank.

[0007] Further, the liquid preparation tank is arranged above the circulating tank.

[0008] Further, the metering pump is an electronic metering pump.

[0009] Further, the spray pipe is horizontally arranged, and the plurality of spray openings are uniformly arranged at the bottom of the spray pipe.

[0010] Further, the liquid inlet pump is arranged on the liquid inlet pipe.

[0011] The present application has the following beneficial effects:

[0012] The present application provides a silane spraying device for copper foil, comprising a circulating tank, a liquid inlet pipe, a spray pipe, a recovery tank, a recovery pipe, and a liquid supplementing system, wherein the liquid supplementing system comprises a liquid preparation tank, a liquid supplementing pipe, a metering pump, and a flow detection device, the bottom of the liquid preparation tank is provided with a third liquid outlet, the third liquid outlet is connected with the second liquid inlet through the liquid supplementing pipe, and the metering pump and the flow detection device are arranged on the liquid supplementing pipe. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 The present application discloses a device structure diagram;

[0014] Fig. 2 The present application discloses a spray pipe structure diagram. DETAILED DESCRIPTION

[0015] The present application will be described in detail below in combination with the drawings and specific embodiments. The embodiments shown below do not have any limiting effect on the application content recorded in the claims. In addition, the entire content of the embodiments represented below is not limited to the necessary solution of the application recorded in the claims.

[0016] Reference is made to the accompanying drawings Figs. 1-2The utility model provides a silane spraying device for copper foil, including circulating tank 2, liquid inlet pipe 4, spray pipe 5, recovery groove 6, recovery pipe 7 and liquid supplementing system, the upper portion of circulating tank 2 is provided with first liquid inlet, second liquid inlet, and the side or bottom of circulating tank 2 is equipped with first liquid outlet, the bottom end of liquid inlet pipe 4 is connected with first liquid outlet, and the upper end is connected with spray pipe 5, a plurality of spray ports are arranged on spray pipe 5, recovery groove 6 is arranged below spray pipe 5, and the length and width of recovery groove 6 are all greater than spray pipe 5, the bottom of recovery groove 6 is equipped with second liquid outlet, and second liquid outlet is connected with first liquid inlet through recovery pipe 7, and the liquid supplementing system includes liquid preparation tank 1, liquid supplementing pipe, metering pump 8 and flow detection device 9, the bottom of liquid preparation tank 1 is equipped with third liquid outlet, and third liquid outlet is connected with second liquid inlet through liquid supplementing pipe, and metering pump 8 and flow detection device 9 are arranged on liquid supplementing pipe.

[0017] In an embodiment of the utility model, the circulating tank 2 is arranged below the recovery groove 6.

[0018] In an embodiment of the utility model, the liquid preparation tank 1 is arranged above the circulating tank 2.

[0019] In an embodiment of the utility model, the metering pump 8 is an electronic metering pump 8.

[0020] In an embodiment of the utility model, the spray pipe 5 is horizontally arranged, and the plurality of spray ports are evenly arranged on the bottom of the spray pipe 5.

[0021] In an embodiment of the utility model, the liquid inlet pump 3 is arranged on the liquid inlet pipe 4.

[0022] The silane spraying device for copper foil provided by the utility model has the recycling groove 6 arranged below the spraying pipe 5, and the spraying pipe 5 is arranged on the recycling groove 6, so that the spraying pipe 5 can be used for spraying the silane coupling agent on the copper foil, and the recycling groove 6 can be used for recycling the spraying liquid, thereby avoiding the waste of the spraying liquid and saving the production cost.

[0023] The device is installed on the copper foil surface treatment machine, and the copper foil passes below the spraying pipe 5 while being sprayed, so that the silane can be uniformly sprayed on the surface of the copper foil.

[0024] The control relationship among the thickness, linear speed and spraying amount of the copper foil can be referred to the following formula and table 1.

[0025]

[0026] Wherein, sigma represents the surface density of the copper foil, and the unit is Kg / m 2 L represents the width of the copper foil, and the unit is m, v represents the linear speed of the surface treatment machine, and the unit is m / h, and m represents the weight of a roll of copper foil, and the unit is Kg.

[0027] Table 1 automatic interlocking relationship among the thickness, speed and spraying amount of the copper foil

[0028]

[0029] For example, a roll of copper foil with a width of 15 mu m, a width of 1350 mm, a surface density of 120 g / m 2 A roll of copper foil with a total weight of 1000 kg is taken as an example to describe the working process of the silane coupling agent spraying device.

[0030] In the circulating tank, pure water is added to 5L, and 50ml coupling agent is prepared, which is directly added into the circulating tank and circulated for 1 hour. Then, 200ml silane coupling agent is prepared in the silane preparation tank, and 2500ml liquid in the circulating tank is stirred uniformly and then added into the preparation tank. The linear speed of the table processing machine is taken as an example, and the weight is 1000kg and the surface density is 120g / m 2 The 15 copper foil can be treated in 3.43h, and after the equipment starts to run, the flow rate of the electronic metering pump is set to 0.79L / h, which can complete the treatment of 1000kg of copper foil

[0031] In the description of the present application, it should be noted that the terms "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] Unless otherwise expressly specified and limited, the terms "provision", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application should not be limited to the embodiments shown herein, but should be consistent with the widest scope of principles and novel features disclosed herein.

Claims

1. A silane spraying device for a copper foil, characterized by comprising: a silane source; a silane vaporizer; a silane nozzle; and a copper foil conveying device. The circulating tank, the liquid inlet pipe, the spray pipe, the recovery tank, the recovery pipe and the liquid supplement system are included, The upper part of the circulating tank is provided with a first liquid inlet and a second liquid inlet, and the side or bottom of the circulating tank is provided with a first liquid outlet; The bottom end of the liquid inlet pipe is connected with the first liquid outlet, and the upper end is connected with the spray pipe; a plurality of spray openings are arranged on the spray pipe; The recovery tank is arranged below the spray pipe, and the length and width of the recovery tank are greater than those of the spray pipe; The bottom of the recovery tank is provided with a second liquid outlet, and the second liquid outlet is connected with the first liquid inlet through a recovery pipe; The liquid supplement system includes a liquid preparation tank, a liquid supplement pipe, a metering pump and a flow detection device; the bottom of the liquid preparation tank is provided with a third liquid outlet, the third liquid outlet is connected with the second liquid inlet through the liquid supplement pipe; and the metering pump and the flow detection device are arranged on the liquid supplement pipe.

2. The silane spraying device for a copper foil according to claim 1, characterized by The circulating tank is arranged below the recovery tank.

3. The silane spraying device for copper foil according to claim 1, characterized by The liquid preparation tank is arranged above the circulating tank.

4. The silane spraying device for a copper foil according to claim 1, characterized by The metering pump is an electronic metering pump.

5. The silane spraying device for a copper foil according to claim 1, characterized by The spray pipe is arranged horizontally, and the plurality of spray openings are uniformly arranged on the bottom of the spray pipe.

6. The silane spraying device for copper foil according to any one of claims 1 to 5, characterized by A liquid inlet pump is further included, and the liquid inlet pump is arranged on the liquid inlet pipe.

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