Application analysis of Precision copper stamped parts in chemical polishing of copper materials

After stamping, Precision copper stamped parts are prone to residual oil stains and oxide layers on the surface, and may also produce micro burrs and uneven surface roughness, affecting product performance and appearance. Chemical polishing can achieve multiple effects such as oil removal, oxidation layer removal, surface leveling, and mirror polishing simultaneously through the action of specific chemical solutions, without the need for complex mechanical polishing. It can improve the cleanliness and glossiness of the Copper sheet stamping surface, optimize its conductivity and heat dissipation efficiency, and enhance its surface corrosion resistance, laying a good foundation for subsequent use or further surface treatment.

After chemical polishing treatment, the Electrical copper stamping parts have a wider range of adaptability scenarios, with core applications concentrated in four major fields.

In the field of precision electronics and communication, copper stamping parts such as micro connectors and crystal oscillators can be polished to eliminate micro burrs, reduce contact resistance, meet high conductivity and cleanliness requirements, and ensure stable electronic signal transmission.

In power and cooling systems, stamped parts such as power copper bars and cooling modules have significantly improved thermal conductivity and cooling efficiency after polishing, making them suitable for high load power transmission and equipment cooling needs.

In the field of decoration and industrial products, copper pieces for architectural decoration, handicrafts, etc., the appearance and texture of Copper spring contacts are improved through mirror polishing, while enhancing salt spray resistance and extending service life.

The chemical polishing of Copper stamping processing connecting needs to follow standardized procedures to ensure processing effectiveness and product quality. The core process is divided into three key steps.

Firstly, pre-treatment involves removing oil, acid washing, degreasing, and multiple rinses to thoroughly remove oil stains, oxide scales, and impurities from the surface of the workpiece, avoiding any impact on the subsequent polishing effect.

Next is chemical polishing, soaking the pre treated workpiece in a specialized chemical polishing solution preheated to 45-50 ℃ for 1-4 minutes. The copper workpiece needs to be controlled at a higher temperature to form a brown oxide film on the surface.

Finally, the film stripping process involves immersing the Cross copper metal stamping in diluted sulfuric acid solution or specialized stripping solution for 8-15 seconds, removing the surface oxide film, and rinsing again to complete the entire polishing process.

To ensure the stability and consistency of chemical polishing of Copper pressed components, attention should be paid to process details and post production management.

In terms of process operation, large-area workpieces need to be placed upright to avoid overlapping and uneven polishing. Small workpieces can be shaken with a mesh basket to ensure that the surface of the Copper pressed stamped parts contacts the polishing solution evenly.

In terms of waste liquid management, the copper containing waste liquid generated after polishing needs to be centrally recovered and treated, and direct discharge is strictly prohibited, in compliance with environmental protection requirements.

In terms of storage conditions, chemical polishing solution should be stored away from light, with a controlled ambient temperature not exceeding 45 ℃. Its shelf life is usually 12 months, and it should be used within the shelf life to ensure the polishing effect.

We are committed to providing professional technical support and solutions for Precision copper stamped parts processing, and can provide customized polishing process planning based on workpiece application scenarios and performance requirements. Welcome customers with relevant technical consultation, process optimization or batch processing needs to come and communicate. We will quickly provide professional advice and implementation solutions.