SURFACE TREATMENTS

Metal surface anodizing that most used in prototype and low volume production parts processing is divided into: general anodizing,brushing, hard anodizing, thick film anodizing, micro-arc oxidation. The materials that can be anodizing are aluminum alloy, magnesium alloy, titanium alloy etc.. Anodizing can form a protective film on the surface of the product, making it difficult to oxidization resistant and corrosion resistant, prolonging the life and achieving the appearance of various colors. If you have an anodizing color template, we can customize the same color for you, such as: red, blue, gold, green, gray, purple, natural, black. Surface gloss is divided into matte, flat, high-light. Anodizing can combine with some pre-treatment such as sandblasting, brushing, polishing, etc. You can also choose the color you like from PROMETAL CNC Co.’s many anodizing color cards. If you have a custom part to develop, please send us an email to sales@prometalcnc.com to GET A FREE QUOTE.

Ordinary Anodizing characteristics
Anodizing is an electrolytic oxidation process that converts the surface of a material into an oxide film that is protective, decorative, corrosion resistant, abrasion resistant, and some other functional properties. The effect of anodizing is related to the corrosion resistance of aluminum alloy materials. The corrosion resistance of 1 series pure aluminum is the best, and the 5 series is good, followed by 3 series and 6 series, 2 series and 7 series, which can be judged, 1 series The anodizing effect of the 5 series, 3 series, and 6 series is better than that of the 2 series and 7 series. Our recommended anodizing material is AL6061. For more aluminum alloy varieties and typical uses, please refer to "Type and typical use of wrought aluminum alloy" or contact us directly.

Hard Anodized characteristics
When your product requires material hardness and surface hardness, you can choose AL7075 hard aluminum, the surface is hard anodized, the hard anodized film is generally 25~150um, the hardness is about HV300~HV350 or above, aluminum The hardness of the alloy product after hard oxidation is not changed. The hardening is only the oxide film on the outer surface of the aluminum, which plays the role of abrasion resistance, corrosion resistance and weather corrosion resistance.

Thick film anodizing characteristics
Thick film anodizing will thicken the film layer attached to the surface of the product. Thick film anodizing generally requires a thickness of 50~250um. The oxide film of thick film anodizing increases with the increase of current, and the current increases to promote the thickening of the oxide film. The thick layer of the surface, so as to achieve the effects of wear resistance, corrosion resistance, heat insulation and weather corrosion, so it is widely used in the mechanical parts manufacturing industry, such as: pistons, steam plugs, cylinders, bearings, water conservancy equipment, steam impellers, gears. prototype, precision parts. .


Micro-arc Oxidation characteristics
Micro-arc oxidation is suitable for magnesium alloy and aluminum alloy, but magnesium alloy can only be used for micro-arc oxidation. Commonly used magnesium alloy materials are AZ31B, AZ91D, AZ61, AM60B, AZ80, etc. Micro-arc oxidation is a kind of green Environmentally friendly emerging surface treatment technology, which can grow a uniform ceramic film on the surface of the material, with high hardness (HV300-1000), strong corrosion resistance (CASS salt spray test >480h), good insulation (film resistance) >100MΩ), the film layer and the base metal have strong bonding force, and the ceramic thickness is 10 to 100 micrometers, so that the wear resistance, corrosion resistance, thermal shock resistance and insulation properties of the magnesium alloy surface are greatly improved. Magnesium alloy micro-arc oxidation products are commonly used in robot parts, aerospace parts, aerospace parts, new energy vehicles, electronic products and other fields. At present, we continue to provide magnesium alloy robot parts for small batch processing for ABB robots. If you have related project customization, please contact us directly.

Why choose PROMETAL CNC Co. for surface treatment anodizing?
PROMETAL CNC Co. has more than 10 years experience in the production of hardware prototype parts and low volume production parts. We can customize different production processes for you, such as: CNC milling processing, CNC lathe machining, wire cutting, EDM, laser cutting, CNC Bending, stamping, drilling, tapping, etc., in order to provide convenience to customers, we can also provide you with other surface treatments, such as: anodizing, dusting, painting, electroplating, passivation, polishing,brushing, sandblasting , silk screen, laser engraving, electrophoresis, CD pattern, etching, highlights, etc., as well as free assembly, customized packaging and other services, contact us immediately, open your new project.