What is Black Oxide
author: YITECH
2024-06-21
What is Black Oxide？
Black oxide surface treatment is a method of treating the surface of certain metal materials (such as iron, steel, copper, etc.) into black. The main purpose of this treatment method is to prevent the metal material from losing its function due to rust and corrosion. The treatment process includes steps such as cleaning, pickling, oxidation, and pickling. Among them, oxidation is the key step in forming the black tone. After the black oxide surface treatment, a dense oxide layer will form on the surface of the metal material, which effectively improves the durability and corrosion resistance of the material. This surface treatment method is widely used in machinery, automobiles, construction and other fields.
Advantages of black oxide surface treatment
1. Good corrosion resistance: The metal material after blackening surface treatment forms a dense oxide layer, which can effectively prevent the metal material from being damaged by corrosion.
2. Beautiful: The metal material after blackening surface treatment has a black appearance, which is more beautiful and more suitable for some special purposes.
3. Improve surface hardness: The metal material after blackening surface treatment will form a hardness layer of a certain depth due to oxidation, which can improve the surface hardness.
Disadvantages of black oxide surface treatment
1. It is easy to cause discoloration and fading, especially in humid and low-light environments.
2. It cannot completely prevent corrosion of metal materials, but can effectively delay the occurrence of corrosion.
3. The black surface treatment process is relatively complicated and requires professional technicians to operate. It has high costs and cycles and may not be suitable for the production of certain products.
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