中野科学 List of Products and Services

**Features of Stainless Steel Electrolytic Polishing** ◆ Achieves a clean surface By dissolving the stainless steel surface, it removes foreign substances and fine dirt that are difficult to eliminate through physical polishing, resulting in a clean surface with good cleanability. ◆ Provides high corrosion resistance As a result of forming a more robust and stable passive film rich in chromium, the surface exhibits high corrosion resistance. ◆ Produces a glossy finish It results in a surface with a different roughness and gloss compared to buff polishing. It can be used as an alternative to buff polishing or in combination with it. ◆ Enables polishing of areas that cannot be buff polished There are areas that cannot be polished due to the size of the polishing tools in physical polishing. Electrolytic polishing allows for the polishing of such fine areas. ◇◇ For more details, please download the catalog or contact us ◇◇

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**Features of Aluminum Electrolytic Polishing** ◆ High gloss and reflectivity achieved It brings out the beautiful luster of aluminum. A higher reflectivity than chemical polishing can be obtained. ◆ Clean and smooth surfaces achieved Surfaces with low roughness are obtained. Additionally, it results in clean surface properties without any altered layers or foreign substances. ◆ Polishing of areas that are impossible with physical polishing There are areas that cannot be polished due to the size of the polishing tools in physical polishing. Electrolytic polishing allows for the polishing of such fine areas. ◇◇ For more details, please download the catalog or contact us ◇◇

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**Features of Titanium Electrolytic Polishing** ◆ High Gloss Finish Achievable It brings out the gloss of titanium, which is difficult to polish. ◆ Clean and Smooth Surface Obtained A surface with low roughness is achieved. Furthermore, it results in a clean surface property without any processing alteration layer or foreign substances. ◆ Polishing of Areas Impossible with Physical Polishing There are areas that cannot be polished due to the size of the polishing tool in physical polishing. Electrolytic polishing allows for the polishing of such fine details. ◇◇ For more details, please download the catalog or contact us ◇◇

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**Features of Copper Electrolytic Polishing** ◆ Enhances Gloss It brings out the beautiful gloss of copper. It achieves a high gloss level that cannot be obtained through chemical polishing. ◆ Achieves Clean and Smooth Surfaces It results in surfaces with low roughness. Furthermore, it provides a clean surface property without any processed altered layers or foreign substances. Generally, the surface roughness obtained is finer than that achieved through chemical polishing. ◆ Polishing of Areas Impossible with Physical Polishing There are areas that cannot be polished due to the size of the polishing tools in physical polishing. Electrolytic polishing allows for the polishing of such fine areas. ◆ Vacuum Packaging Available Upon Request Copper oxidizes due to oxygen in the air. To prevent oxidation, it is possible to vacuum package the product after electrolytic polishing before shipping. ◇◇ Please feel free to contact us for more details ◇◇

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This is a polishing method that achieves a nano-level ultra-smooth surface by simultaneously combining electrochemical polishing and physical polishing with abrasives. 【Features of Electrolytic Composite Polishing】 ◆ Achieves a high mirror finish at the nano level Even pure titanium can be finished to an average roughness of 0.002 µm (2 nm) from an average roughness of 0.2 µm. Furthermore, depending on the polishing conditions, it is also possible to achieve an average roughness of 0.001 µm (1 nm). ◆ No distortion of the metal surface due to heat In physical polishing, distortion of the metal surface due to heat may occur, but this does not happen in electrolytic composite polishing. ◆ Clean surface properties with minimal alteration No compressed altered layer forms on the metal surface. Additionally, there is no entrapment of abrasives, resulting in a very clean surface. ◆ High non-adhesiveness and cleanability A smooth metal surface exhibits excellent non-adhesiveness and cleanability. ◇◇ For more details, please download the catalog or contact us ◇◇

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**Features of Barrel Electrolytic Polishing** ◆ Efficient deburring of fine parts It is possible to deburr a large number of fine parts at low cost and with short delivery times. ◆ Achieves clean and smooth surfaces Surfaces with low roughness can be obtained. Furthermore, the surface properties are clean with no altered layers or foreign substances. Generally, the surface roughness is finer than that achieved by chemical polishing. ◆ Corrosion resistance superior to chemical polishing Corrosion resistance is improved through barrel electrolytic polishing. It is generally possible to provide corrosion resistance that exceeds that of chemical polishing. ◇◇ For more details, please download the catalog or contact us ◇◇

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Chemical polishing is a process that dissolves and polishes the metal surface by immersing it in chemical polishing agents without using electricity. Similar to electrolytic polishing, the surface is dissolved to achieve a clean state, resulting in a smooth and glossy finish. Since it does not use electricity, the uniformity of polishing is high, allowing for efficient polishing of products that are fine and numerous. 【 Precision Control of Chemical Polishing 】 Chemical polishing allows for easier control of changes in weight, thickness, and other factors compared to electrolytic polishing. Nakano Science's "Chemical Polishing" can control the change in thickness to a target value of ±0.003mm. ◇◇ Please feel free to contact us for more details ◇◇

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By further oxidizing the oxide film on the stainless steel surface and making it thicker, it appears beautifully colored due to the interference of light. A familiar example of color appearing in the same manner is soap bubbles. 【Features of Stainless Steel Oxidation Coloring】 ◆ Color is a "phenomenon of light interference" Although it appears to be colored, it is due to interference colors and contains no pigment components, making it harmless. ◆ No risk of foreign substance contamination The oxide film does not deteriorate or peel off, which allows it to be used in medical and food fields where foreign substance contamination is not permitted. ◆ Excellent design quality Mechanical polishing finishes such as mirror and hairline, as well as embossing and laser marking, can be utilized as they are. ◆ Excellent corrosion resistance and weather resistance The corrosion resistance is improved by thickening the oxide film. Additionally, it does not fade due to ultraviolet light. ◆ Easy to recycle Unlike coatings or plating that must be removed during recycling, it can be recycled as is. ◇◇ For more details, please download the catalog or contact us ◇◇

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In response to your request to color titanium while maintaining its excellent properties, we are implementing titanium coloring through the anodizing method. 【Features of Titanium Anodizing】 ◆ The metallic luster ensures that the metallic texture is not lost. ◆ The anodic oxide film has excellent weather resistance and corrosion resistance. ◆ Additionally, we can also process discharge anodizing (color is gray) that further enhances corrosion resistance and insulation. ◆ Since no coloring agents are used, it can be utilized in fields such as medical applications where contamination by foreign substances is not allowed. ◎ By combining it with electropolishing, it is possible to further enhance the color development. ￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣ By performing electropolishing as a pretreatment before anodizing, we achieve a glossy coloring without foreign substances or fine dirt. The surface becomes smooth with low roughness, making it difficult for fingerprints and other stains to adhere, thus providing high cleanliness. ◇◇ Please feel free to contact us for more details ◇◇

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It is ideal for removing discoloration from welding, stains, and impurities adhered to the surface. It also improves corrosion resistance. The result is characterized by a high-quality finish free of burn marks and stains. 【Purpose of Acid Pickling】 By performing acid pickling, welding discoloration is removed, enhancing the product's appearance. Additionally, since welded areas are prone to corrosion, it has the effect of improving corrosion resistance. It is often used as a surface preparation for processes such as polishing, plating, and coating. ◇◇ Please feel free to contact us for more details ◇◇

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The passive film on the surface of manufactured stainless steel products is in an incomplete state due to various causes that occur during the processing. This condition is prone to the destruction of the passive film, which can lead to rust formation. Passivation treatment is a surface treatment that restores this incomplete passive film to its original state and further strengthens it to a chromium-rich condition, with the aim of improving corrosion resistance (to prevent rust). 【Features of Passivation Treatment】 ◆ No change in appearance ◆ No change in dimensions ◆ No change in hardness ◆ Compatible with various stainless steel materials ◇◇ Please feel free to contact us for more details ◇◇

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We provide a one-stop service from processing to surface treatment for your desired products. By maximizing our network of partner factories, we can arrange high-quality and smooth products. For more details, please feel free to contact us.

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High-performance metal mirrors with functional coatings on the surface (high-reflective coatings, protective coatings). They can be used as components requiring high reflectivity or as durable mirrors. The surface is extremely smooth, with surface roughness at the nano level. The shapes are not limited to flat surfaces; curved surfaces such as spherical, concave, and convex shapes are also possible. ◆ High-reflective coating The surface achieves a higher reflectivity than that of polished metal mirrors. (Reflectivity close to 100% is also achievable.) ◆ Protective coating With a protective coating, the mirrors can withstand harsh environments. Additionally, they become less susceptible to scratches and dirt. They can be used in products that require high durability. ◇◇ For more details, please download the catalog or contact us ◇◇

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We will restore parts and tools that have become dirty or rusty due to use and aging through cleaning. Tools, parts, and equipment within the factory that are dirty, starting to corrode, or have rust are generally discarded and replaced with new ones. By restoring them, we can significantly reduce the costs associated with replacement and the environmental impact of disposal. For more details, please download the catalog or contact us.

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The polishing of magnesium alloys, which has traditionally been difficult, can now be safely achieved through electro-polishing. This allows for improved design aesthetics, easy removal of surface impurities, and surface finishing for magnesium alloy products and components. Our electro-polishing treatment will assist you in the design and manufacturing of magnesium alloy products and components. 【Features】 ● A highly safe polishing method ● Can achieve sufficient gloss ● Improves corrosion resistance by removing surface impurities ● Can polish areas that are difficult or impossible to polish with buffing or barrel polishing ● Can remove welding discoloration and heat treatment discoloration Please download the catalog to check the points to note regarding this electro-polishing. ◇◇ For more details, feel free to contact us ◇◇

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By applying anodizing treatment to magnesium, significant improvement in corrosion resistance can be expected. The film is transparent and does not compromise the texture of magnesium at all. 【Features】 ● Significantly enhances the corrosion resistance, which is a drawback of magnesium ● Allows for coloring in various colors while maintaining the texture ● Shades can be freely adjusted *We also provide mass production estimates from a single prototype estimate, so please feel free to contact us. ◇◇ For more details, please download the catalog or contact us ◇◇

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