In CNC punching, blackening treatment has multiple functions and significance:
Anti corrosion protection: The formed black oxide film can effectively isolate air, water, and other corrosive substances, significantly improve the corrosion resistance of CNC stamping parts, and extend their service life in harsh environments.
Enhanced hardness: To a certain extent, increase the surface hardness of the parts, making them more wear-resistant and reducing wear and scratches during use.
Aesthetic decoration: endowing parts with a deep and uniform black appearance, enhancing the overall aesthetics of the product, suitable for occasions with specific requirements for appearance.
Improving the clarity of identification: A black background helps to create clearer and more eye-catching identification and markings formed by stamping.
Application scenario:
Electronic device casing: The metal casing of devices such as mobile phones and computers, which has undergone CNC stamping and blackening treatment, can not only protect the casing from corrosion but also enhance the appearance and texture of the product.
Mechanical parts, such as gears and shaft sleeves, are treated with blackening to enhance their wear resistance and corrosion resistance, ensuring the normal operation of the machinery.
The CNC punching blackening treatment has significant cost advantages, mainly reflected in the following aspects:
Low processing cost: CNC punching parts blackening treatment usually uses relatively simple equipment and chemical reagents. Compared with other surface treatment methods such as electroplating and painting, the equipment investment and chemical reagent cost are relatively low. This means that during mass production, the surface treatment cost of individual parts can be reduced.
Low energy consumption: The blackening process of CNC punching parts usually does not require a large amount of energy consumption, such as electricity and thermal energy. This helps to reduce energy consumption and costs in the production process.
High production efficiency: CNC punching parts blackening treatment can usually be completed in a short time, thereby improving production efficiency. In addition, due to the relatively simple operation and maintenance of blackening treatment equipment, it also reduces equipment failures and downtime, further improving production efficiency.
Easy post-processing: CNC punching parts that have been blackened usually do not require complex post-processing, such as drying, curing, etc. This reduces the cost and time investment in the post-processing process.
CNC punching blackening treatment has significant cost advantages, including low processing cost, low energy consumption, high production efficiency, simple post-processing, and environmental friendliness. These advantages make blackening treatment an economical and practical surface treatment method, particularly suitable for large-scale production and cost sensitive fields.