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 washability. ◆ Provides High Corrosion Resistance As a result of forming a more robust and stable passive film rich in chromium, it results in a surface with high corrosion resistance. ◆ Produces Gloss 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. ◆ Allows Polishing of Areas Not Possible with Buff Polishing There are areas that cannot be polished due to the size of the polishing tool in physical polishing. Electrolytic polishing can effectively polish 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 Brings out the beautiful luster of aluminum. Achieves a higher reflectivity than chemical polishing treatments. ◆ Clean and smooth surfaces obtained Results in surfaces with low roughness. Additionally, it provides clean surface properties without processed 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 can polish these 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 shine of titanium, which is difficult to polish. ◆ Clean and Smooth Surface Obtained A surface with low roughness is achieved. Additionally, it results in a clean surface with no altered layers 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 inherent in copper. It achieves a high level of gloss 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 combining electrochemical polishing and physical polishing with abrasives simultaneously. 【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 There is no compressed altered layer on the metal surface. Additionally, there is no entrapment of abrasives, resulting in a very clean surface. ◆ High non-adhesiveness and cleanliness A smooth metal surface exhibits excellent non-adhesiveness and cleanliness. ◇◇ 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 perform deburring of a large number of fine parts at low cost and with short lead times. ◆ Achieves clean and smooth surfaces Surfaces with low roughness can be obtained. Furthermore, it results in clean surface properties without a processed altered layer or foreign substances. Generally, the surface roughness obtained is finer than that achieved by chemical polishing. ◆ Corrosion resistance superior to chemical polishing Corrosion resistance is improved through barrel electrolytic polishing. Typically, it is possible to impart corrosion resistance greater than 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 even for 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 thickening it, it appears beautifully colored due to the interference of light. A familiar example of color appearing under similar conditions is soap bubbles. 【Features of Stainless Steel Oxidation Coloring】 ◆ Color is a "light interference phenomenon" 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 degrade or peel off, which allows it to be used in medical and food fields where 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 improves as the oxide film thickens. Additionally, it does not fade due to ultraviolet rays. ◆ 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 perform discharge anodizing (color is gray) which 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 permitted. ◎ By combining it with electrolytic polishing, it is possible to further enhance the color development. ￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣ By performing electrolytic polishing as a pre-treatment before anodizing, we achieve a glossy coloring free of foreign substances and fine dirt. The surface becomes smooth with low roughness, making it difficult for fingerprints and other dirt to adhere, thus providing high cleanability. ◇◇ 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 without any burn marks or stains. 【Purpose of Acid Pickling】 By performing acid pickling, welding discoloration is removed, enhancing the aesthetic appeal of the product. Additionally, since welded areas are prone to corrosion, there is an effect of improving corrosion resistance. It is often used as a pre-treatment for 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 rusting). 【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 the products you desire. By making the most of our network of partner factories, we can arrange high-quality and smooth products. ◇◇ Please feel free to contact us for more details ◇◇

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High-performance metal mirrors with functional coatings on the surface (high-reflective coating, protective coating). 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 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 or aging through cleaning. Tools, parts, and equipment that are dirty, beginning to corrode, or have rust forming are generally discarded and replaced with new ones in the factory. 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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By applying anodizing treatment to magnesium, a significant improvement in corrosion resistance can be expected. The coating is transparent and does not compromise the texture of the magnesium at all. 【Features】 ● Significantly enhances the corrosion resistance, which is a drawback of magnesium ● Allows for coloring in various colors while preserving 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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• Other metal materials

The polishing of magnesium alloys, which has traditionally been difficult, can now be safely achieved through electrolytic polishing. This allows for improved design aesthetics, easy removal of surface impurities, and surface finishing of magnesium alloy products and components. Our electrolytic 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 electrolytic polishing. ◇◇ For more details, feel free to contact us ◇◇

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