What's hard anodizing? What's the difference between hard anodizing and ordinary anodizing
2024-06-18
Hard anodizing is a kind of surface treatment technology for metal, mainly through electrolytic way to form a wear-resistant, high hardness, high toughness ceramic oxide layer on the surface of the material, so as to improve the hardness and wear resistance of the metal surface, used to increase the wear resistance and corrosion resistance of the metal surface, often used in the industrial field of metal workpiece processing, mechanical accessories, etc. It can make its surface porcelain, thereby enhancing its mechanical properties and surface hardness.
Advantages and disadvantages of hard anodizing
Advantages of hard anodizing:
1. It can increase the hardness and wear resistance of the metal surface.
2. It can enhance the corrosion resistance of the metal surface.
3. It can change the color of the metal surface.
2. It can enhance the corrosion resistance of the metal surface.
3. It can change the color of the metal surface.
Disadvantages of hard anodizing:
1. The surface is rough and uneven after treatment.
2. May affect the electrical properties of the metal.
3. The waste water and waste gas generated in the treatment process will cause certain pollution to the environment.
2. May affect the electrical properties of the metal.
3. The waste water and waste gas generated in the treatment process will cause certain pollution to the environment.
Hard Anodizing vs Ordinary Anodizing
Hard anodizing is mainly used for hardening of metal surfaces to improve surface hardness and wear resistance, and is often used in industrial fields. Ordinary anodizing is to use the anode and cathode principle to form an oxide film on the metal surface, which is used to protect the metal surface and enhance its corrosion resistance. The main difference between the two lies in the use and the different properties of the formed film layer
1. Different uses: hard anodizing is mainly used for hardening of metal surface to improve surface hardness and wear resistance; Anodizing is used to protect the metal surface and enhance its corrosion resistance.
2. The properties of the formed film are different: the oxide film formed by hard anodic oxidation is usually thicker, dense and hard oxide film, while the oxide film formed by anodic oxidation is usually thin and porous.
Selection of Raw Materials for Machining
Nitriding for surface treatment
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