Cleaning process of shielding copper strip plate for antioxidant cable

Abstract

The invention relates to a cleaning process for a shielding copper strip plate for an anti-oxidation cable. The cleaning process comprises the following steps: (S1) carrying out surface alkali washing by utilizing a four-brush box to remove rolling oil stains; (S2) a brush box is used for polishing and grinding; (S3) carrying out acid pickling through an acid tank; (S4) carrying out polishing and grinding treatment by utilizing a polishing brush box; (S5) carrying out hot water flushing treatment; and (S6) air cooling treatment is performed after drying. According to the method, after the process method is adopted, the dried strip and plate strip wiping copper strip in the assembly line length reaches the colorless state of white tissues. And meanwhile, through the reasonable proportion of the passivating agent, the copper strip plate surface after being cleaned and the passivating agent in a certain proportion form a compact copper film, so that the oxidation resistance of the strip can be effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of copper strip production and processing, and specifically relates to a cleaning process for a shielded copper strip plate for an oxidation-resistant cable. Background Art

[0002] The State Grid has requirements for the anti-corrosion performance of cables. Since cables are often laid in humid environments, they need to have good anti-corrosion performance. Our company ensures that the cables have good anti-corrosion performance by improving the oxidation resistance of the copper tape used for cable shielding.

[0003] The surface oxidation resistance of current cable shielding copper tape is unstable in harsh environments. The surface cleanliness and preparation process of the tape are different. The cleaner the surface of the tape, the more the passivator reacts with the copper ions on the copper surface, and the anode potential moves rapidly from the negative direction to the positive direction. The faster the movement, the more rapidly the polarization resistance increases, and a dense copper film material is quickly formed, which can effectively passivate the copper tape, especially in harsh environments. Summary of the invention

[0004] The object of the present invention is to provide a cleaning process for a shielded copper strip plate for an oxidation-resistant cable, so as to better provide a copper strip plate cleaning method and improve the oxidation resistance of the copper strip.

[0005] In order to achieve the above object, the technical solution of the present invention is as follows.

[0006] A cleaning process for a shielded copper strip plate for an oxidation-resistant cable comprises the following steps: (S1) using four brush boxes to perform surface alkali washing to remove rolling oil stains: sequentially passing through an alkali box with a cleaning agent, a first polishing box, a second polishing box and a third polishing box which are connected and installed in sequence, wherein the alkali box, the first polishing box, the second polishing box and the third polishing box are all provided with brushes, and alkali washing is performed on the upper and lower surfaces of the shielded copper strip plate for the anti-oxidation cable passing therethrough to remove rolling oil stains; (S2) polishing and grinding using a brush box: using a polishing brush in the brush box to perform rotational polishing and remove rolling oil stains from the shielding copper strip together with a cleaning medium; (S3) pickling in an acid tank: using an acid solution with a mass percentage concentration of 8-15%, immersion pickling is performed on the surface of the polished shielding copper strip at room temperature; (S4) performing polishing and grinding treatment using a polishing brush box: entering the polishing brush box through the shielded copper strip plate of the pickling tank for polishing and grinding treatment, and grinding is performed by rotating the polishing brush; (S5) hot water rinsing treatment: the shielding copper strip plate that has been polished and ground is rinsed with hot water and passivated; (S6) Air cooling after drying: After the passivation treatment, the shielding copper strip plate is rinsed with hot water and then placed in an oven for drying.

[0007] (S7) Cutting into required specifications and packaging for storage.

[0008] Furthermore, in step (1), the brush used in the alkali box is a nylon brush, the brush used in the first polishing box is a Dupont brush, the brush used in the second polishing box is a scouring pad, and the brush used in the third polishing box is a nylon brush.

[0009] Furthermore, in step (1), the temperature of the cleaning agent cleaning treatment is 55-70°C.

[0010] Furthermore, in step (2), two polishing brushes are provided in the brush box, the rotation speed of the two polishing brushes is 750 r / min, and the current value of the motors respectively connected to the two polishing brushes for providing power is 7.5 amperes; the feeding speed of the shielded copper strip plate is 80-120 m / min.

[0011] Furthermore, the temperature of the hot water used in step (5) is 80°C.

[0012] Furthermore, the formula of the passivating agent used in step (5) is as follows: by mass percentage, 12% branched fatty alcohol alkoxylate, 3% alkylamino alcohol ether, 1% ammonia chelating agent, 0.5% triazine fungicide, 0.1% isothiazolinone fungicide, 1% morpholine fungicide, 1.5% ethanol, 2% sodium carbonate, and the balance water.

[0013] Furthermore, in step (6), the oven belt speed is 80-120 m / min, and the drying temperature is set to 80-95°C.

[0014] The beneficial effect of the invention is that: in the invention, after adopting the above process method, the copper strip is wiped on the strip assembly line length after drying to achieve a white paper towel colorless state. At the same time, through a reasonable ratio of the passivating agent, the copper strip surface is cleaned and forms a dense copper film with a certain proportion of the passivating agent, thereby effectively improving the oxidation resistance of the strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the process steps used in the embodiment of the present invention.

[0016] Figure 2 These are physical photos of products obtained using existing processes.

[0017] Figure 3 It is a surface real object photo obtained by using the process in the embodiment of the present invention. DETAILED DESCRIPTION

[0018] The specific implementation of the present invention is described below in conjunction with the accompanying drawings and examples to facilitate a better understanding of the present invention. Example

[0019] like Figure 1 The cleaning process of the shielded copper tape board for oxidation resistant cables shown includes the following steps: (S1) Using four brush boxes to perform surface alkali washing to remove rolling oil stains: sequentially passing through an alkali box with a cleaning agent, a first polishing box, a second polishing box and a third polishing box which are connected and installed one after another, each of which is provided with a brush, alkali washing is performed on the upper and lower surfaces of the shielded copper strip plate for the anti-oxidation cable passing therethrough to remove rolling oil stains; wherein the brush used in the alkali box is a nylon brush, the brush used in the first polishing box is a DuPont brush, the brush used in the second polishing box is a scouring pad, and the brush used in the third polishing box is a nylon brush. The temperature of the cleaning agent cleaning treatment is 55-70°C.

[0020] (S2) Polishing and grinding using a brush box: Use the polishing brush in the brush box for rotational grinding, and use it together with a cleaning medium to remove the shielded copper strip after rolling oil stains; there are two polishing brushes in the brush box, and the rotation speed of the two polishing brushes is 750r / min, and the current value of the motors connected to the two polishing brushes for providing power is 7.5 amperes; the feeding speed of the shielded copper strip is 80-120m / min.

[0021] (S3) pickling in an acid tank: using an acid solution with a mass percentage concentration of 8-15%, immersion pickling is performed on the surface of the polished shielding copper strip at room temperature; (S4) performing polishing and grinding treatment using a polishing brush box: entering the polishing brush box through the shielded copper strip plate of the pickling tank for polishing and grinding treatment, and grinding is performed by rotating the polishing brush; (S5) Hot water rinsing treatment: The above-mentioned polished copper strip is rinsed with hot water and passivated; the hot water temperature used is 80°C. The formula of the passivating agent used is: by mass percentage, 12% branched fatty alcohol alkoxylate, 3% alkylamino alcohol ether, 1% ammonia chelating agent, 0.5% triazine fungicide, 0.1% isothiazolinone fungicide, 1% morpholine fungicide, 1.5% ethanol, 2% sodium carbonate, and the balance water.

[0022] (S6) Air cooling after drying: After the passivation treatment, the shielding copper strip is rinsed with hot water and then placed in an oven for drying. The oven belt speed is 80-120 m / min, and the drying temperature is set to 80-95°C.

[0023] (S7) Cutting into required specifications and packaging for storage.

[0024] Figure 2 These are physical photos of products obtained using existing processes. Figure 3 The surface of the product obtained by the process in the embodiment of the present invention is shown in Figure 1. Compared with the two, the surface of the product obtained by the process of the present invention has high surface finish and good surface anti-oxidation effect.

[0025] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A cleaning process for shielded copper strips for oxidation-resistant cables, characterized in that: The following steps are involved: (S1) using four brush boxes to perform surface alkali washing to remove rolling oil stains: sequentially passing through an alkali box with a cleaning agent, a first polishing box, a second polishing box and a third polishing box which are connected and installed in sequence, wherein the alkali box, the first polishing box, the second polishing box and the third polishing box are all provided with brushes, and alkali washing is performed on the upper and lower surfaces of the shielded copper strip plate for the anti-oxidation cable passing therethrough to remove rolling oil stains; (S2) polishing and grinding using a brush box: using a polishing brush in the brush box to perform rotational polishing and remove rolling oil stains from the shielding copper strip together with a cleaning medium; (S3) pickling in an acid tank: using an acid solution with a mass percentage concentration of 8-15%, immersion pickling is performed on the surface of the polished shielding copper strip at room temperature; (S4) performing polishing and grinding treatment using a polishing brush box: entering the polishing brush box through the shielded copper strip plate of the pickling tank for polishing and grinding treatment, and grinding is performed by rotating the polishing brush; (S5) hot water rinsing treatment: the shielding copper strip plate that has been polished and ground is rinsed with hot water and passivated; (S6) Air cooling after drying: After the passivation treatment, the shielding copper strip plate is rinsed with hot water and then placed in an oven for drying; (s7) Cut into required specifications and pack for storage.

2. The cleaning process of the shielded copper strip for the anti-oxidation cable according to claim 1 is characterized in that: In the step (S1), the brush used in the alkali box is a nylon brush, the brush used in the first polishing box is a Dupont brush, the brush used in the second polishing box is a scouring pad, and the brush used in the third polishing box is a nylon brush.

3. The cleaning process of the shielded copper strip for the anti-oxidation cable according to claim 1 is characterized in that: In the step (S1), the cleaning temperature of the cleaning agent is 55-70°C.

4. The cleaning process for the shielded copper strip for the anti-oxidation cable according to claim 1 is characterized in that: In the step (S2), two polishing brushes are arranged in the brush box, the rotation speed of the two polishing brushes is 750r / min, and the current value of the motors connected to the two polishing brushes for providing power is 7.5 amperes; the feeding speed of the shielded copper strip plate is 80-120m / min.

5. The cleaning process for the shielded copper strip for the anti-oxidation cable according to claim 1 is characterized in that: The temperature of the hot water used in the step (S5) is 80°C.

6. The cleaning process for the shielded copper strip for the anti-oxidation cable according to claim 1 is characterized in that: The formula of the passivating agent used in the step (5) is as follows: by mass percentage, 12% branched fatty alcohol alkoxylate, 3% alkylamino alcohol ether, 1% ammonia chelating agent, 0.5% triazine fungicide, 0.1% isothiazolinone fungicide, 1% morpholine fungicide, 1.5% ethanol, 2% sodium carbonate, and the balance water.

7. The cleaning process for the shielded copper strip for the anti-oxidation cable according to claim 1 is characterized in that: The oven belt speed in step (6) is 80-120 m / min, and the drying temperature is set at 80-95°C.

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