How to perform surface treatment after processing of copper nut injection nut embedded parts of communication products?
Release Time : 2025-05-29
After the processing of copper nut injection nut embedded parts of communication products is completed, surface treatment is the key link to improve its performance and service life. This link is not only related to the appearance texture, but also directly affects the corrosion resistance, wear resistance and electrical performance of embedded parts in communication equipment. It needs to be considered comprehensively from a variety of process principles and applicable scenarios.
First of all, cleaning is the basic step of surface treatment. During the processing, impurities such as cutting fluid, release agent, oil or debris may remain on the surface of the embedded parts. If these pollutants are not removed, the subsequent treatment process will be difficult to work, and may even affect the connection stability between the embedded parts and other parts of the communication equipment. Usually, professional cleaning agents are used, combined with ultrasonic cleaning or high-pressure spraying, to penetrate into the thread gap and the plastic joint to completely remove impurities. After cleaning, it is necessary to dry in time to prevent water stains from causing copper corrosion and prepare for subsequent processing.
Anti-rust treatment is crucial for copper nuts. Although copper has a certain degree of corrosion resistance, it will still oxidize and discolor in a humid or chemical environment, affecting the performance of embedded parts. Common anti-rust methods include electroplating and chemical plating. During electroplating, a layer of metal, such as nickel, chromium, etc., is plated on the surface of the copper nut through the principle of electrolysis to form a dense protective layer to isolate the air from contacting the copper material; chemical plating does not require electricity, and uses redox reactions to deposit metal ions on the surface of the copper nut, which can also achieve the purpose of rust prevention. These anti-rust layers can not only extend the service life of the embedded parts, but also enhance their wear resistance, ensuring that they remain in good condition during frequent assembly.
In order to improve the appearance, texture and functionality of copper nut injection nut embedded parts processing, passivation treatment can be carried out. Passivation is to form a very thin oxide film on the surface of the copper nut, which can prevent further oxidation of copper and improve the surface finish. Through the treatment of a specific passivation solution, the copper nut presents a uniform color and enhances the beauty of the product. For communication products, appearance consistency is an important manifestation of quality. Passivation treatment can effectively meet this demand without affecting the electrical performance of the embedded parts, ensuring that signal transmission is not interfered with.
If there are higher requirements for the decorativeness of copper nut injection nut embedded parts processing, a coating process can also be used. Spraying a layer of protective paint or functional coating on the surface of the embedded parts can not only further isolate external corrosion factors, but also give the product a personalized appearance. For example, spraying anti-static paint can prevent communication equipment from affecting signal transmission due to static interference; spraying wear-resistant paint can enhance the surface hardness of embedded parts and adapt to complex assembly environments. The coating process needs to strictly control the thickness and uniformity of the coating to prevent affecting the dimensional accuracy and assembly adaptability of the embedded parts.
For some special application scenarios, functional surface treatment may also be required. For example, in high-frequency communication equipment, in order to reduce signal loss, silver can be plated on the surface of the embedded parts, and the good conductivity of silver can be used to optimize electrical performance; in situations where heat dissipation needs to be enhanced, chemical conversion film treatment can be used to form a film layer with a microporous structure on the surface of the copper nut, which is convenient for subsequent coating of heat dissipation materials and improves the overall heat dissipation efficiency. These functional treatments need to be combined with the specific needs of communication products to accurately select processes and materials.
After the surface treatment is completed, quality inspection is indispensable. Verify whether the surface treatment effect meets the standards through visual inspection, salt spray test, film thickness detection and other means. Visual inspection can detect whether there are obvious defects such as missing plating and coating peeling on the surface; salt spray test simulates harsh environment to detect anti-rust performance; film thickness test ensures that the protective layer meets the standard requirements. Only embedded parts that have passed the test can enter the assembly link of communication products to ensure the overall quality of the equipment.
The surface treatment of copper nut injection nut embedded parts processing of communication products requires the comprehensive use of cleaning, rust prevention, passivation, coating and other processes, and flexible selection and combination according to product usage scenarios and performance requirements. Each process is closely related, from basic cleaning to functional processing, and then to strict quality inspection, to jointly create a reliable surface protection system for embedded parts, so that they can stably play a connecting and supporting role in communication equipment.