塚田理研工業 List of Products and Services

We would like to introduce our "low corrosion plating" treatment. By applying palladium plating between nickel and gold to reduce the substitution reaction, we offer NiPdAu plating that mitigates corrosion. With the increasing miniaturization, lightweight, and thinness of electronic devices due to their enhanced functionality and multi-functionality, products with narrow line/space (L/S) are on the rise. We propose and accommodate the optimization of pretreatment tailored to the products as a pre-plating process. 【Processing Steps】 ■Step 1. Pretreatment & Masking: Cleaning and smoothing of the copper surface ■Step 2. Plating Treatment: Electroless, electrolytic, and selective plating ■Step 3. Rinsing and Drying: Final pure cleaning *For more details, please download the PDF or feel free to contact us.

• Surface treatment contract service

When high-frequency current flows through the tip of a metal, electromagnetic wave noise is generated, which can interfere with electronic devices. Electromagnetic wave shielding is used to prevent this interference. This document introduces various methods of electromagnetic wave shielding, along with their advantages and disadvantages, and then presents the technology of electromagnetic wave shielding plating using resin. Additionally, it includes a wealth of data collected from detailed tests on the electromagnetic wave shielding characteristics, performance, and effects of plating. We encourage you to read it. 【Contents (excerpt)】 ■ What is electromagnetic wave shielding ■ Characteristics and advantages of electromagnetic wave shielding through plating ■ Mechanism of electromagnetic wave shielding and absorption ■ A wide range of electromagnetic wave shielding technologies ■ List of resins suitable for shielding plating ■ Reliability testing methods for shielding plating *For more details, please refer to the PDF document or feel free to contact us.

• Plating Equipment
• Magnetic field analysis/electromagnetic wave analysis

We would like to introduce Tsukada Riken's new electromagnetic wave shielding technology. Compared to conventional methods, it allows for coating on various resins. (ABS, PC/ABS, PP, PET glass reinforced, etc.) Our electromagnetic wave shielding plating technology addresses various challenges. Please feel free to contact us. 【Features】 ■ Combines reflection and absorption ■ Electromagnetic wave shielding effect ■ Coating available on various resins *For more details, please refer to the PDF document or feel free to contact us.

• Plating Equipment
• Magnetic field analysis/electromagnetic wave analysis

The special masking liquid jointly developed with our paint manufacturer can be removed during the pretreatment stage of the plating process. As a result, it is possible to partially plate while leaving the texture of the base material intact. 【Features】 <Partial plating using the TP Mask method> ■ The finish can take advantage of the dimensional accuracy of the molded product. ■ Partial plating, which was previously done on two-color molded products, can now be performed on standard single-color molded products. *For more details, please refer to the PDF document or feel free to contact us.

• Plating Equipment
• Surface treatment contract service

Our company has developed a plating for magnesium alloys that combines decorative aesthetics for appearance use with practical corrosion resistance, based on years of decorative plating technology. With a surface treatment through plating that offers high "reliability" against corrosion and low defect rates in mass production, we further expand the possibilities of magnesium alloys. 【Application Range】 ■ Compatibility with various molded products - Applicable to all representative molded products of magnesium alloys, including die casting, thixomolding, and press processing. ■ Compatibility with various materials - Performance equivalent not only for AZ91 but also for AZ31. ■ Compatible with all our basic color tones, including trivalent chromium and pearlescent finishes (total of 77 colors). *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service
• Other surface treatment equipment
• alloy

Our company produces a satin-finish plating by creating fine surface irregularities during the plating process. Until a few years ago, glossy plating was the standard, but recently, satin-finish plating has become popular, especially for automotive parts. It is now adopted in many luxury vehicles, both domestic and international, as well as in numerous interior decorations, resulting in a luxurious color tone. 【Features】 ■ Platable Resins - ABS, PC/ABS, PA, etc. (other materials that can be plated) ■ Corrosion Resistance - Corrosion resistance comparable to glossy plating - Meets standards for automotive products and water-washable parts ■ Variety of Glossy Finishes - Capable of producing several types of gloss, from subtle sheen to pearl-like luster - Similar to standard plating, it can achieve various colors, allowing for approximately 15 different plating appearances. *For more details, please refer to the PDF document or feel free to contact us.

• Plating Equipment
• Surface treatment contract service

"Ion plating" is a thin film surface treatment technology developed in the United States as part of space development technology. It is a type of PVD (Physical Vapor Deposition) that offers higher adhesion compared to vacuum deposition and sputtering, allowing for the processing of high-hardness coatings such as TiN (titanium nitride). Our company utilizes a unique ion plating technology to directly treat resin-plated products at low temperatures. Compared to conventional resin-plated products, surface hardness and corrosion resistance are dramatically improved. [Features] - Excellent adhesion - Surface coating that is less prone to scratches compared to chrome plating or gold plating - High wear resistance - High corrosion resistance with TiN and TiCN films - High resistance to discoloration and degradation due to environmental effects; low-temperature processing *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service
• Other surface treatment equipment

"I want to try decorative treatments other than standard chrome plating." "I would like to consider plating on resins other than ABS." "I want to consider partial plating treatment." If you have such concerns, why not enhance the appearance of your current decorations and achieve "differentiation from competitors"? Tsukada Riken Kogyo conducts surface treatment processing across a wide range of fields through its departments specializing in various plating on plastics, various painting on plastics, and Ni-Au plating on printed circuit boards. We actively incorporate environmentally friendly plating technologies, and our advanced techniques have received positive feedback in various fields such as automotive, home appliances, plumbing fixtures, and amusement-related industries. *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Surface treatment contract service

It is possible to apply decorative plating to PA (polyamide) resin, commonly known as "nylon" resin, which is widely used as engineering plastic. Plating on resin is typically done on ABS resin, and the methods are well known. Nylon resin has a higher heat resistance, as well as superior wear resistance and impact resistance compared to ABS resin, making its applications broad; however, there have been many issues regarding the adhesion and aesthetic design of the plating. Our company has developed a unique pretreatment and already has a track record of decorative plating on PA resin for many automotive parts.

• Processing Contract