コダマ Product Lineup

Kodama Co., Ltd. offers silver plating processing for busbars made of copper and copper alloys. Silver plating has high electrical conductivity, which is effective in reducing contact resistance and suppressing heat generation during high current flow. It is suitable for high current components in EVs, HEVs, charging equipment, distribution boards, power equipment, and semiconductor manufacturing equipment. Depending on the application, we can accommodate matte silver, hard silver, super hard silver, partial silver plating, and thick silver plating. We also propose improvements in wear resistance at contact points and cost reductions through partial plating only where necessary. We suggest optimal specifications tailored to product shape, material, film thickness, and usage environment, and we can handle everything from prototype production to mass production.

• Contract manufacturing

Kodama Co., Ltd. not only serves customers in the manufacturing industry but also handles contract processing and commissioned processing from plating companies, surface treatment manufacturers, and trading companies. We can accommodate special plating that cannot be handled by our own equipment, difficult materials, thick plating, partial plating, outsourcing of only certain processes, and backup production during busy periods. We support various materials including gold, silver, tin, nickel, hard chrome, and electroless nickel, as well as Ni-B, Ni-B-W, and PTFE composite electroless nickel. We cater to a wide range of materials such as SUS, titanium, aluminum, copper, and copper alloys, and we accept orders from prototypes to mass production. We also have experience in commissioned processing from other companies in the same industry and take care to maintain confidentiality regarding drawings, processing conditions, and transaction information.

• Contract manufacturing

Kodama Co., Ltd. offers matte nickel plating using sulfamic acid baths. It is characterized by high flexibility, making it resistant to cracking during bending and riveting processes after plating. It also excels in brazing and welding, making it suitable for functional parts such as sleeves, electrodes, flanges, and pins. We accommodate thick plating, partial plating, SUS materials, and barrel/rack processing. We welcome inquiries from prototyping to mass production of small parts at a scale of 100,000 pieces per month.

• Contract manufacturing

"Hard chrome plating" is a plating process that has strong wear-resistant properties. We also handle the plating of tools and small-sized mass-produced products with short lead times. Additionally, we can accommodate partial plating of precision machine parts and molds. It is used in various fields such as automobiles, ships, industrial machinery, inspection tools, cutting tools, shafts, and molds. [Features] - Uses a fluoride bath - Hardness of approximately Hv850 - Capable of short lead time processing for mass-produced products - Can plate precision machine parts *For more details, please refer to the catalog or feel free to contact us.

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• Other contract services

"Non-chromate Alodine treatment" is a type of surface treatment for aluminum, which is a chemical conversion coating that does not contain hexavalent chromium as an alternative to traditional Alodine treatment. It is used as a primer for painting and ensures corrosion resistance and conductivity equivalent to conventional Alodine treatment (which contains chromium). Our company offers a variety of chemical conversion coatings. Please feel free to contact us. 【Features】 ■ Completely non-chromate product ■ Compliant with RoHS directive ■ Equivalent corrosion resistance and conductivity to traditional Alodine treatment ■ Suitable as a primer for painting *For more details, please refer to the catalog or feel free to contact us.

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"Lead-free electroless nickel plating" is a completely lead-free, lead-free electroless nickel plating. It has excellent corrosion and wear resistance, with a uniform coating thickness that can be applied evenly to the inner surfaces of complex-shaped parts. [Features] - Environmentally friendly - Completely lead-free electroless nickel plating - Uniform coating thickness - Can be applied evenly to the inner surfaces of complex-shaped parts *For more details, please refer to the catalog or feel free to contact us.

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"Electroless Nickel Boron Plating" is a plating that has high hardness and is suitable for complex products. It achieves a hardness of HV1000 (during heat treatment), which is harder than hard chrome plating, and has a hardness of about Hv750 during the plating deposition. Because it can be uniformly plated on complex-shaped products that require wear resistance, it is used as an alternative to hard chrome for molds and mold components. It has excellent solderability, and due to the slow immobilization rate of the coating, there is no decrease in solderability after long-term storage. While regular electroless nickel plating oxidizes at 350°C for 30 minutes, this product does not oxidize up to 450°C for 30 minutes. [Features] - Excellent solderability with no decrease after long-term storage - Does not oxidize up to 450°C for 30 minutes - Achieves a hardness of HV1000 (during heat treatment) - Can be uniformly plated on complex-shaped parts *For more details, please refer to the catalog or feel free to contact us.

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"Electroless nickel Teflon plating" has excellent non-stick release properties, making it the ideal plating for resin molding molds. The hardness is approximately Hv300 in the deposited state, and due to its excellent sliding properties and wear resistance, it is used in the sliding parts of pistons and bearings. 【Features】 ■ Outstanding non-stick release properties ■ Excellent sliding properties and wear resistance ■ Hardness is about Hv300 in the deposited state *For more details, please refer to the catalog or feel free to contact us.

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"Super corrosion-resistant electroless nickel plating" is the ideal plating for corrosion-resistant products such as semiconductor device components and chemical pumps used in harsh environments. It also has minimal performance degradation in mechanical parts, electrical switches, and contact components, allowing for an extended lifespan. The coating has a beautiful finish with no pinholes or pits. 【Features】 ■ Optimal for semiconductor device components and chemical pumps ■ Minimal performance degradation ■ Possible extension of lifespan ■ Coating with no pinholes or pits *For more details, please refer to the catalog or feel free to contact us.

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• Other contract services

Kodama Co., Ltd. is a company that mainly handles plating products such as gold plating, silver plating, and tin plating. We listen to our customers' voices, sincerely answer any questions, and have focused on sample production and technological development. Currently, we have many mass production lines primarily for functional plating. We contribute to our customers with our responsiveness, problem-solving skills, management capabilities, and technical expertise. For plating processing, please feel free to contact us. [Industry] ■ Manufacturing > Metal Processing > Surface Treatment > Plating *For more details, please refer to our catalog or feel free to contact us.

• Processing Contract

We will introduce an overview of the Alodine treatment and Surtec 650 treatment, including their advantages and disadvantages, the reaction mechanism of Alodine treatment, as well as their characteristics and applications. We also have product examples available, so please take a look. Currently, our production capacity is over 90% for existing customers. For new requests, we ask for a lead time of about 5 days as we will incorporate them into the production schedule. Founded 62 years ago, we are a specialized plating manufacturer based in Osaka. We cater to plating processing requests nationwide.

• Processing Contract
• Surface treatment contract service

Non-electrolytic nickel plating [super corrosion resistance] is a proprietary technology of Kodama Co., Ltd. Its amorphous crystal structure provides high corrosion resistance with a coating that is free from pits and pinholes. It demonstrates excellent effectiveness in rust and corrosion prevention. For more details, please contact us.

• Processing Contract
• Surface treatment contract service

Tin plating (tin coating) refers to the process of covering a product with a thin layer of tin. The advantages of tin plating include its low melting point of 231.9°C, which makes it excellent for soldering in industrial applications. It is widely used in automotive-related products. We offer three types of tin plating (Sn plating) based on the specifications and applications required by our customers. We have glossy, semi-glossy, and matte tin plating available, each with functional differences in appearance, hardness, uniform electroplating properties, and adhesion. We look forward to your inquiries and requests regarding tin plating processing.

• Processing Contract
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This is an introduction to Kodama Corporation's "Silver Plating Processing," which specializes in industrial silver plating. ■□■Features■□■ ■Silver plating (Ag) deposits a high-purity (99.99% purity) coating, providing conductivity equivalent to pure silver. ■Electrical conductivity is the best compared to other precious metal platings. ■It also has excellent thermal conductivity. ■Hard silver plating is suitable for electric vehicle terminal components and more. ■We can also respond quickly to various masking and partial silver plating requests. ■We accommodate custom orders for glossy, semi-gloss, and matte finishes. For details, please contact us.

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We can also accommodate urgent plating processing! Introducing Kodama's "Electroless Nickel Teflon Plating," which is well-regarded for surface treatment aimed at improving functionality. ■□■Features■□■ ■Excellent mold release properties due to the dispersion of low-adhesion energy PTFE particles. ■Low friction coefficient and excellent wear resistance achieved with electroless nickel + Teflon particles. ■Uniform inclusion of 23 vol% PTFE in the coating. ■Hardness of approximately Hv300 in the deposited state (can be increased to Hv500 with heat treatment). ■Teflon microparticles absorb sound, providing excellent noise reduction. ■Uniform coating thickness makes it ideal for precision parts. ■For more details, please contact us.

• Processing Contract
• Surface treatment contract service

Ideal for electrical contact components such as thick gold plating on electrodes and terminal terminals! Here is an introduction to Kodama's "Gold Plating Processing," which specializes in gold plating. ■□■Features■□■ ■ Capable of handling film thickness from 0.03 to 30 μm ■ Can accommodate various types of gold plating, including pure gold plating, hard gold plating, electroless gold plating, thick gold plating, and bright gold plating, tailored to specific applications ■ Also capable of processing ferrite, which is said to be difficult for plating ■ Prototyping and small-scale production of electronic components, medical devices, health equipment parts, measuring instrument parts, and development parts are welcome (specializing in research and development) ■ Various masking and partial plating processes are also available ■ Feel free to consult us, even if it's your first time.

• Processing Contract
• Surface treatment contract service