An electroplating process for central control of automobiles

Abstract

The invention relates to an electroplating process for an automobile central controller. The electroplating process comprises the steps of pretreatment, nickel preplating, copper replacement, acid copper plating, semi-finished nickel plating, pearl nickel plating, nickel sealing, chromium plating and drying. In addition, acid activation treatment is added before both the steps of semi-finished nickel plating and chromium plating, and acid pickling is added before the step of pearl nickel plating. Meanwhile, an F90R color scheme is selected and used as the color scheme of pearl nickel, and the pearl nickel is formed by mixing K5 with the concentration being 0.06 ml / L and K6Al with the concentration being 0.4 ml / L. The electroplating process for the automobile central controller has the advantages that mixed liquid of copper and sulfuric acid is adopted for copper replacement, so that cleanliness and flatness of the surface of a to-be-plated product are improved; in addition, an acid pickling procedure or an acidification procedure is added before all the plating steps, thus binding force between coatings can be improved, and separation between the coatings is reduced; meanwhile, specific to the A10 automobile central controller, the pearl nickel of the F90R color scheme is selected and used; and in the pearl nickel plating process, the concentration requirements of the F90R color scheme always needs to be kept, and thus the color of the product is uniform.

Description

technical field

[0001] The invention belongs to the technical field of electroplating, and in particular relates to an electroplating process for central control of automobiles. Background technique

[0002] Electroplating is the process of plating a thin layer of other metals or alloys on the surface of the base material using the principle of electrolysis. It is a process of using electrolysis to attach a layer of metal film to the surface of metal or other material parts to prevent metal oxidation (such as rust), improve wear resistance, electrical conductivity, reflective properties, corrosion resistance (acid sulfur copper, etc.) and enhance the appearance.

[0003] The central control of the car includes the central control door lock system. The driver can control the door switch and glass lift system of the whole vehicle through the central control of the car. It also includes the central console, audio control panel and other vehicle controllers. Among them, in the ...

Examples

Embodiment 1

[0023] The electroplating process of the automobile central control in this embodiment, the electroplating process includes the following steps:

[0024] (1) Pre-treatment: degreasing, roughening, reduction, pre-soaking, activation, degumming and electroless nickel plating are performed on the injection-molded automotive central control in sequence;

[0025] (2) Pre-nickel plating: Send the pre-treated automobile central control into the pre-nickel plating tank for pre-nickel plating treatment, and then put it into the cleaning tank and rinse it with pure water; the pre-plating solution in the pre-nickel plating tank It is a mixed solution of 250g / L nickel sulfate, 40g / L nickel chloride and 40g / L sulfuric acid, the pH value of the pre-plating solution is controlled at 4.4, the temperature is 60°C, and the pre-plating time is 3.5min;

[0026] (3) Copper replacement: Send the pre-nickel-plated car central control into the copper replacement tank for copper replacement. The coppe...

Embodiment 2

[0034] The electroplating process of the automobile central control in this embodiment, the electroplating process includes the following steps:

[0035] (1) Pre-treatment: degreasing, roughening, reduction, pre-soaking, activation, degumming and electroless nickel plating are performed on the injection-molded automotive central control in sequence;

[0036] (2) Pre-nickel plating: Send the pre-treated automobile central control into the pre-nickel plating tank for pre-nickel plating treatment, and then put it into the cleaning tank and rinse it with pure water; the pre-plating solution in the pre-nickel plating tank It is a mixed solution of 260g / L nickel sulfate, 50g / L nickel chloride and 50g / L sulfuric acid, the pH value of the pre-plating solution is controlled at 4.0, the temperature is 50°C, and the pre-plating time is 6.5min;

[0037] (3) Copper replacement: Send the pre-nickel-plated car central control into the copper replacement tank for copper replacement. The coppe...

Embodiment 3

[0045] The electroplating process of the automobile central control in this embodiment, the electroplating process includes the following steps:

[0046] (1) Pre-treatment: degreasing, roughening, reduction, pre-soaking, activation, degumming and electroless nickel plating are performed on the injection-molded automotive central control in sequence;

[0047] (2) Pre-nickel plating: Send the pre-treated automobile central control into the pre-nickel plating tank for pre-nickel plating treatment, and then put it into the cleaning tank and rinse it with pure water; the pre-plating solution in the pre-nickel plating tank It is a mixed solution of 255g / L nickel sulfate, 45g / L nickel chloride and 45g / L sulfuric acid, the pH value of the pre-plating solution is controlled between 4.2, the temperature is 55°C, and the pre-plating time is 5 minutes;

[0048] (3) Copper replacement: Send the pre-nickel-plated car central control into the copper replacement tank for copper replacement. T...

technical field

[0001] The invention belongs to the technical field of electroplating, and in particular relates to an electroplating process for central control of automobiles. Background technique

[0002] Electroplating is the process of plating a thin layer of other metals or alloys on the surface of the base material using the principle of electrolysis. It is a process of using electrolysis to attach a layer of metal film to the surface of metal or other material parts to prevent metal oxidation (such as rust), improve wear resistance, electrical conductivity, reflective properties, corrosion resistance (acid sulfur copper, etc.) and enhance the appearance.

[0003] The central control of the car includes the central control door lock system. The driver can control the door switch and glass lift system of the whole vehicle through the central control of the car. It also includes the central console, audio control panel and other vehicle controllers. Among them, in the ...

Examples

Embodiment 1

[0023] The electroplating process of the automobile central control in this embodiment, the electroplating process includes the following steps:

[0024] (1) Pre-treatment: degreasing, roughening, reduction, pre-soaking, activation, degumming and electroless nickel plating are performed on the injection-molded automotive central control in sequence;

[0025] (2) Pre-nickel plating: Send the pre-treated automobile central control into the pre-nickel plating tank for pre-nickel plating treatment, and then put it into the cleaning tank and rinse it with pure water; the pre-plating solution in the pre-nickel plating tank It is a mixed solution of 250g / L nickel sulfate, 40g / L nickel chloride and 40g / L sulfuric acid, the pH value of the pre-plating solution is controlled at 4.4, the temperature is 60°C, and the pre-plating time is 3.5min;

[0026] (3) Copper replacement: Send the pre-nickel-plated car central control into the copper replacement tank for copper replacement. The coppe...

Embodiment 2

[0034] The electroplating process of the automobile central control in this embodiment, the electroplating process includes the following steps:

[0035] (1) Pre-treatment: degreasing, roughening, reduction, pre-soaking, activation, degumming and electroless nickel plating are performed on the injection-molded automotive central control in sequence;

[0036] (2) Pre-nickel plating: Send the pre-treated automobile central control into the pre-nickel plating tank for pre-nickel plating treatment, and then put it into the cleaning tank and rinse it with pure water; the pre-plating solution in the pre-nickel plating tank It is a mixed solution of 260g / L nickel sulfate, 50g / L nickel chloride and 50g / L sulfuric acid, the pH value of the pre-plating solution is controlled at 4.0, the temperature is 50°C, and the pre-plating time is 6.5min;

[0037] (3) Copper replacement: Send the pre-nickel-plated car central control into the copper replacement tank for copper replacement. The coppe...

Embodiment 3

[0045] The electroplating process of the automobile central control in this embodiment, the electroplating process includes the following steps:

[0046] (1) Pre-treatment: degreasing, roughening, reduction, pre-soaking, activation, degumming and electroless nickel plating are performed on the injection-molded automotive central control in sequence;

[0047] (2) Pre-nickel plating: Send the pre-treated automobile central control into the pre-nickel plating tank for pre-nickel plating treatment, and then put it into the cleaning tank and rinse it with pure water; the pre-plating solution in the pre-nickel plating tank It is a mixed solution of 255g / L nickel sulfate, 45g / L nickel chloride and 45g / L sulfuric acid, the pH value of the pre-plating solution is controlled between 4.2, the temperature is 55°C, and the pre-plating time is 5 minutes;

[0048] (3) Copper replacement: Send the pre-nickel-plated car central control into the copper replacement tank for copper replacement. T...