ユニゾーン List of Products and Services

Our company performs "copper plating," which has the characteristic of being relatively easy to deposit even on complex shapes. As it is a very soft metal, it is easy to polish and is mainly used as a base plating. Additionally, due to its good electrical conductivity, it is widely used in electronic components such as printed circuit boards. 【Functions and Characteristics】 ■ Decorative properties ■ Electrical conductivity *For more details, please download the PDF or contact us.

• Surface treatment contract service

Our company performs "nickel plating," which is used for enhancing decoration and durability, as well as for the base plating of various coatings. Additionally, it is used as a barrier layer between the material and the topmost plating to prevent defects caused by thermal diffusion when applying Sn plating and Au plating for soldering and bonding electronic components. Please feel free to contact us if you have any inquiries. 【Functions and Characteristics】 ■ Decorative ■ Corrosion resistance *For more details, please download the PDF or contact us.

• Surface treatment contract service
• Processing Contract

We offer "nickel-chrome plating" suitable for decorative items and machine parts. It forms a transparent passivation film on the surface, providing excellent corrosion resistance. Additionally, the gloss level of the nickel plating used as a base for chrome plating allows for control over corrosion resistance. 【Functions and Characteristics】 ■Decorative ■Corrosion Resistance *For more details, please download the PDF or contact us.

• Surface treatment contract service

Our company offers "hard chrome plating," which has an extremely high hardness (Vickers hardness Hv800-1000) among plating types and is used for sliding parts and mold components. We can perform plating only on necessary areas and accommodate special shapes (such as molds). Additionally, we also provide pre-polishing and finishing polishing before and after plating. 【Characteristics】 ■ Corrosion resistance ■ Wear resistance ■ Release properties ■ Build-up properties ■ Porosity *For more details, please download the PDF or contact us.

• Surface treatment contract service
• Processing Contract

We offer a consistent service for pre-polishing, surface finishing (mirror finishing), hairline finishing, and matte processing, along with plating. We mainly perform buff polishing, and electro-polishing is aimed at achieving mirror polishing on stainless steel. Additionally, buff polishing is applicable to various materials including steel, SUS, cast iron, copper, brass, and aluminum. 【Surface Roughness】 ■ Buff race polishing (#400) 1.2S ■ Buff race cylindrical polishing (work size Φ600×L3000) 1.2S ■ Mirror cylindrical polishing (work size Φ600×L3000) 0.8S ■ Cylindrical grinding (work size Φ600×L3000) 3.2S (Example) 1.2S = the difference between the peaks and valleys of the curve when viewed in cross-section is 1.2μm *For more details, please download the PDF or contact us.

• Surface treatment contract service
• Processing Contract

"Electroless nickel plating" allows for a uniform plating film on any complex-shaped item, making it an effective plating process for products with severe dimensional tolerances. It can mainly impart characteristics such as wear resistance and rust prevention. Additionally, by applying a special pretreatment, it can also be plated on non-conductive materials (such as plastics, ceramics, and glass). 【Functions and Characteristics】 ■ Uniform electroplating properties ■ Corrosion resistance ■ Wear resistance ■ Chemical resistance *For more details, please download the PDF or contact us.

• Surface treatment contract service
• Processing Contract

Our company conducts "electroless plating on glass," which maintains the smoothness of the glass and forms an electroless nickel plating film without etching treatments such as hydrofluoric acid. We are capable of forming thin films of electroless Ni-P plating and electroless Cu plating. Please feel free to contact us if you have any requests. 【Features】 ■ Establishment of a process without etching treatment - Simplification of the pretreatment process - No need for strong acid waste liquid treatment - Improvement of electrical properties *For more details, please download the PDF or contact us.

• Surface treatment contract service
• Processing Contract

Our company conducts multilayer plating with versatile functions aimed at "compatibility with base materials" and "supplementing required plating characteristics." This can be utilized for resin molds, electrical and electronic components (connectors), and automotive products (exterior parts). Please feel free to contact us with your requests. [Examples] ■ Material: Iron or Aluminum - Layer 1: Electroless Nickel, Layer 2: Hard Chrome ■ Material: Copper Alloy - Layer 1: Nickel, Layer 2: Tin ■ Material: Steel - Layer 1: Semi-gloss Nickel, Layer 2: Glossy Nickel, Layer 3: Decorative Chrome *For more details, please download the PDF or contact us.

• Surface treatment contract service
• Processing Contract

Unizone Co., Ltd. is a company primarily engaged in surface treatment processes such as electroplating and electroless nickel plating. We handle a wide range of industrial products, including automotive parts, machine components, and electrical parts, and we provide comprehensive support with advanced technology to meet various demands such as miniaturization, enlargement, high functionality, and high precision. To cater to a wide range of needs, from tiny components weighing less than 1mg to large industrial machine parts weighing up to 9.5 tons, we offer a lineup of 46 different types of surface treatments and provide surface treatment solutions. 【Business Overview】 ■ Surface treatment processing ■ Metal processing ■ Production and sales system ■ Technology development ■ Quality control *For more details, please download the PDF or feel free to contact us.

• Surface treatment contract service
• Plating Equipment