シルベック List of Products and Services

Trivalent Chromium-Based Chemical Treatment Coating for Zinc Die Casting Chromating treatment generates a chemical coating on the surface of zinc die castings using trivalent chromium compounds, providing excellent corrosion resistance and improving the adhesion of the paint as a pre-treatment for coating. This treatment does not use harmful hexavalent chromium compounds, making it compliant with environmental regulations. 【Features】 - Does not contain hexavalent chromium compounds - Corrosion resistance → Comparable to hexavalent chromium coatings → Over 120 hours until white rust formation in salt spray test → 50 hours in salt spray test for ZDC1 (Type 1 zinc die casting material) - Ideal for painting and surface preparation - Coating contact resistance is below 0.8 mΩ/cm² - Generates a direct coating on the surface of zinc die castings - Minimal dimensional changes before and after treatment - Very cost-effective - Capable of mass production For more details, please contact us or refer to the catalog.

High corrosion-resistant chemical treatment for aluminum. The zirconium treatment generates a chemical conversion coating on the surface of aluminum and aluminum alloys, such as A1100, A2017, and A5052, using zirconium compounds, thereby providing excellent corrosion resistance and improving the adhesion between aluminum alloys and paint films as a primer. Unlike treatments using trivalent chromium compounds, there is no risk of generating hexavalent chromium compounds due to heating or aging. 【Features】 ○ Colorless coating → Treatment can be performed without changing the appearance after processing ○ Does not contain chromium compounds in the coating ○ No risk of generating hexavalent chromium compounds due to heating or aging ○ Chemical treatment compliant with environmental regulations ○ Good paint adhesion ○ Almost no change in the dimensions of the material → Etching may be necessary if thick oxide films, altered layers, or release agent layers are formed ○ Applicable to precision parts For more details, please contact us or refer to the catalog.

High corrosion-resistant chemical treatment for aluminum. The Belscudo treatment generates a chemical film using trivalent chromium compounds on the surface of aluminum alloys such as A1100, A2017, A5052, and ADC12, providing excellent corrosion resistance while improving the adhesion between aluminum alloys and coatings as a primer. 【Features】 ○ Does not contain harmful hexavalent chromium compounds in the film ○ Chemical treatment compliant with environmental regulations ○ Corrosion resistance → Superior to conventional hexavalent chromium chemical treatments ○ Self-repairing properties ○ Suppresses rust formation from film defects ○ Applicable to precision parts → Does not significantly change the dimensions of the material → Etching may be required if thick oxide films, altered layers, or release agent layers are present ○ Excellent coating adhesion For more details, please contact us or refer to the catalog.

High corrosion-resistant plating on aluminum, known as Alon plating, is a plating treatment that provides excellent corrosion resistance with a thickness of approximately 10μm to 30μm, including a base plating, on the surface of aluminum alloys such as A1100, A2017, A5052, and ADC12. The plating thickness can be adjusted based on the desired corrosion resistance. Additionally, the top layer of plating can be selected from various options such as nickel, gold, silver, and chrome, depending on the application. 【Features】 ○ Lightweight ○ Corrosion resistance ○ Ability to add various functions → Conductivity, solder wetting properties, wear resistance, etc. ○ Chrome plating (compliant with environmental regulations) on a base plating thickness of 25μm ○ Passed salt spray test for 500 hours ○ Possibility of weight reduction and cost savings → If brass was used as the material for corrosion resistance purposes → Change material to aluminum with Alon plating ○ No contact marks ○ High functionality ○ Capable of providing finishes from glossy plating appearance to matte appearance with a pearlescent texture For more details, please contact us or refer to the catalog.

Are you under the impression that aluminum materials such as ADC12 and A5052 can only be surface treated with anodizing? Or do you think that aluminum materials can only be plated using a jig for hook plating? Silvec has made barrel plating on aluminum materials, which has traditionally been considered difficult, possible. 【Features】 ○ Significant cost reduction → No costs for jig manufacturing or labor costs for jig setup ○ No need to set the workpiece in a jig ○ Improved corrosion resistance → No contact marks from jig setup on the workpiece → No corrosion from contact marks ○ Very advantageous for dimensional control of the workpiece after plating → Less variation in plating thickness between workpieces compared to hook plating ○ Conductivity → Unlike anodizing, most of the plating film conducts electricity well ○ Choice of specifications → Various coatings that can be soldered are available For more details, please contact us or refer to the catalog.

The solderable nickel plating developed independently by Silvec is an electroplated nickel for soldering. The solder wetting properties of solderable nickel achieve solder wetting comparable to tin plating. Solderable nickel, developed in response to customer requests, has been in mass production for over 10 years. It has a proven track record of being widely adopted in connectors and components used for soldering in low-voltage applications. No additives to improve solder wetting properties are used in solderable nickel plating. Only nickel sulfate, nickel chloride, boric acid, and a gloss agent (equivalent to commercially available and widely used products) are used, ensuring compliance with RoHS directives and REACH regulations. For more details, please refer to the catalog.

Chrome plating, known for its beautiful white glossy appearance, high corrosion resistance, and excellent surface hardness, has been widely adopted in automotive parts, electrical products, and architectural hardware. However, it requires a jig set for plating, making it a process that cannot necessarily be said to be cost-effective or productive. Additionally, the use of environmentally harmful hexavalent chromium compounds in the plating process has led to manufacturers promoting green procurement to avoid it in recent times. To address these issues, Silvec has made it possible to perform barrel plating with trivalent chromium, which has traditionally been considered difficult. 【Applications】 - No use of hexavalent chromium compounds - Environmentally friendly - Significant cost reduction in jig costs and labor - The coating is hard and resistant to wear - Heat resistance → Equivalent to both trivalent and hexavalent chromium - Chemical resistance → Equivalent to both trivalent and hexavalent chromium For more details, please contact us or refer to the catalog.

Lubricating plating: The nickel plating film containing fluororesin is a plating film that includes fluororesin (PTFE) within the plating layer. This plating film has excellent wear resistance, as well as superior properties such as low friction coefficient, water repellency, oil repellency, release properties, and slip characteristics. 【Features】 ○ Contains approximately 20 vol% of fluororesin in the plating film. ○ Excellent in wear resistance, low friction coefficient, water repellency, oil repellency, release properties, and slip characteristics. ○ The plating film has a hardness of about Hv300. ○ Better corrosion resistance than general electroless nickel plating. ○ The color tone of the film ranges from gray to black. For more details, please contact us or refer to the catalog.

Silvec's solderable nickel plating offers excellent solder wettability through the control of the surface condition of the plating film and the precise management of the plating solution components. No additives to improve solder wettability are used in the solderable nickel plating. Only nickel sulfate, nickel chloride, boric acid, and a gloss agent (equivalent to commercially available and widely used products) are used, and no substances that violate the RoHS directive or REACH regulations are included. *If you are interested, please contact us for a sample of solderable nickel plating for solder wettability evaluation.

We have been dedicated to the delicate and meticulous craftsmanship of Japan for many years, honing our plating technology while being nurtured by our customers, and we are pleased to offer it in Thailand. We aim to create "products that can compete globally and companies that are needed worldwide" with excitement. Please feel free to consult us about any parts that require surface treatment. Every aspect of that process is our business field.

"Plating for automotive entry key fittings" offers a one-stop service from hardware procurement to finished products! Smart keys and keyless entry keys gain a sense of luxury and feature functional and beautiful designs due to the use of metal components. We believe that these metal parts are essential for enhancing the owner's satisfaction. Our company collaborates with businesses that have zinc die-casting machines for entry keys, allowing us to provide a one-stop service from die order to die casting, buff polishing, and plating. If desired, we can also introduce companies that can produce sub-assemblies that combine with resin. We would be grateful if you could consult with us from the planning stage.

Chrome plating can be broadly classified into two types: hard chrome plating (industrial chrome plating) and decorative chrome plating. Hard chrome plating involves plating chrome in a thickness range of 5μm to 500μm, and is used in products that take advantage of its wear resistance and low friction coefficient. Our chrome plating is decorative chrome plating, which involves nickel plating as a base layer and applying chrome plating in a thickness range of 0.25μm to 1.25μm. This decorative plating utilizes the unique beautiful white luster of chrome, which is highly corrosion-resistant, hard, wear-resistant, and has excellent durability against discoloration. 【Features】 ■ Compliant with RoHS Directive ■ Difficult to wrap around weak electrical components ■ Method: Using fixtures (static plating) ■ Applicable materials: Nickel-plated products *For more details, please refer to the PDF document or feel free to contact us. 【Contact Information】 TEL: 048-994-5931 FAX: 048-994-5935 E-mail: info@silvec.co.jp

We would like to introduce a case where we successfully achieved cost reduction through a VA proposal for our customer. Company N, related to electronic components, approached us due to concerns about cost reduction and whisker formation for a product with a zinc die-cast case that requires soldering a printed circuit board and components using copper plating + nickel plating (for diffusion prevention) + tin plating. We proposed our "Solderable Nickel Plating" as a VA suggestion, and after evaluation through prototyping, it led to mass production. This resolved the issues of cost reduction and concerns about whisker formation. [Case Study] ■ Company N, related to electronic components ■ Issues resolved - Cost reduction through VA proposal - Concerns about whisker formation *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce a case where we solved the functional characteristics challenges faced by our customer and were adopted through a VE proposal. We received an inquiry from Company J, a connector manufacturer, regarding a connector housing for infrastructure, with the condition of plating on aluminum die casting (ADC 12) that meets "JIS neutral salt spray for 500 hours with no white rust formation." Among the conditions, there was a requirement not only for "corrosion resistance" but also for "no cracking due to crimping," which necessitated a coating with high ductility. We proposed our original technology, high corrosion-resistant chrome plating "Alon Chrome Plating," and through prototyping and evaluation, we achieved no rust formation after 500 hours of salt spray testing and no cracking during crimping, leading to mass production. [Case Study] ■ Connector Manufacturer: Company J ■ Challenges Resolved - Corrosion resistance SST 500h - Plating coating that does not crack during crimping *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce a case study where we solved a quality issue faced by our customer using our plating and surface treatment technology. Company I, an aluminum die-casting company, was struggling with poor corrosion resistance of the inner diameter of their aluminum die-cast products that had an electric nickel plating + chrome plating specification. They visited us after inquiring through our website. We proposed electroless nickel plating and created a prototype with an electroless nickel plating + chrome plating specification. As a result of the JIS neutral salt spray test, the inner diameter passed with no white rust formation after 72 hours, leading to an order for mass production. [Case Study] ■ Company I, an aluminum die-casting company ■ Resolved Issue ・Improvement of aluminum die-casting corrosion resistance *For more details, please refer to the PDF document or feel free to contact us.

Characteristics of Silver Plating 1. Color Tone: Silver-white (Gloss can be selected) 2. Solder Wetting Property: Good 3. Electrical Conductivity and Thermal Conductivity: Good 4. Bonding Property: Good 5. Discoloration prevention treatment that does not reduce solder wetting property is possible 6. High-precision barrel plating is possible for products that are easy to bend and overlap 7. Effective in preventing galling 8. Matte Silver Plating Hardness: Hv79.1 (Average measured by our company) 9. Method: Barrel Plating (Rotational Plating) Our silver plating, which we have been handling since 1963, is filled with a wealth of know-how. Please feel free to contact us.

Our company has plating facilities for metal parts of automotive keys in both Japan and Thailand. Zinc die casting has excellent characteristics, including high freedom of shape, minimal post-processing, and long mold life. Additionally, plating allows for a sufficiently attractive appearance as a decorative item. Silvec takes pride in having extensive know-how and has deepened its production technology, enabling us to deliver work that satisfies our customers. 【Various Processes】 ■ Zinc Die Casting (ZDC) ■ Buff Polishing ■ Various Plating ■ Inspection ■ Delivery *For more details, please refer to the PDF document or feel free to contact us.

Our company primarily offers high-precision 'silver plating' for industrial purposes, focusing on barrel plating. It has excellent solder wettability, electrical conductivity, and thermal conductivity, and can undergo discoloration prevention treatment without compromising solder wettability. Additionally, it exhibits excellent high-frequency characteristics (high-frequency currents, such as millimeter waves and microwaves, are easily transmitted). 【Features】 ■ Color tone: Silver-white ■ Solder wettability: Excellent ■ Electrical conductivity & thermal conductivity: Excellent ■ Anti-galling ■ Discoloration prevention treatment that does not reduce solder wettability is available *For more details, please refer to the PDF document or feel free to contact us.

We, Silvec, have production bases in Japan and Thailand that ensure the same quality to provide surface treatment technologies and products necessary for innovative goods that allow people around the world to live comfortably. Additionally, since we have transactions with many molding processing manufacturers (press, cutting, cold forging, die casting, extrusion, etc.), we can introduce molding processing manufacturers that match the shape and required quality, or we can arrange materials ourselves, perform surface treatment, and deliver the products. By correctly operating a system for stable supply to our customers, utilizing the production technology know-how accumulated over many years and high-quality, high-productivity equipment, we will continue to fulfill our supply responsibilities. 【Business Content】 ■ Products related to anodizing, plating, and chemical treatment * For more details, please refer to the PDF materials or feel free to contact us. * You can download the Thai version of the catalog.

Features of Silvec's Chrome Plating 1. The appearance of the underlying nickel plating is directly reflected in the appearance after chrome plating. For example, applying chrome plating to a product with glossy nickel plating that has been buff-polished will yield a mirror-like finish. Similarly, if the material is buff-polished and then chrome plated over velour nickel plating, the velour's matte texture will remain visible. 2. Compliant with the RoHS directive. (Although hexavalent chromium is used in the plating solution, it precipitates as metallic chromium in the product, allowing compliance with the RoHS directive.) 3. Hexavalent chromium plating is difficult to apply to areas such as weak electrical components, which may result in exposed nickel on the backside of complex shapes. Due to this characteristic, barrel plating is not permitted. In some cases, fine screws may be plated at the back with mesh attachment, but currently, our company only performs stationary plating using jigs. (Trivalent chromium plating can be done using a barrel.) 4. Method: Jig use (stationary plating)