What is Fingerstock
Finger stocks are electromagnetic compatibility shielding components featuring exceptional conductivity and electromagnetic shielding effectiveness.
They achieve broadband electromagnetic shielding by filling gaps on contact surfaces, ensuring stable signal transmission and providing electromagnetic interference protection for equipment while effectively blocking electromagnetic interference.
Their installation methods include adhesive mounting, slot mounting, and other solutions, facilitating easy installation on various devices and enabling long-term, stable operation.
If you are looking for a reliable manufacturer, GALLOP INNOTEK can support your business with professional products.
What are the Properties of Fingerstocks?
Excellent Flexibility: Finger stock can be repeatedly bent, making it suitable for doors or lids requiring frequent opening and closing.
Thin Profile: Their compact design effectively saves space and allows application in various equipment.
Electrically Conductive: They provide excellent current transmission, enabling grounding and discharge applications in equipment.
High-temperature Resistance: These finger stocks maintain stable properties under elevated temperatures, delivering reliable performance in high-temperature industrial environments. This ensures long-term durability and reduces the frequency of replacement.
Corrosion Resistance: Whether made from beryllium copper alloy or stainless steel, they exhibit stable chemical properties. Finger stocks can resist reactions with chemical agents or other materials while offering excellent tolerance to chemical corrosion.
If you need further information, GALLOP INNOTEK welcomes your inquiries.
Anti-erosion metal materials manufactured to last, Protects shielded doors and cabins.
Plated Fingerstock gasket with lightweight copper material and polished finishings.
Customized fingerstock are available with requested alternations that can be added before production.
One of the best qualities for electrical rooms, Durable and flexible types for various rooms.
A great option for prohibited magnetic rooms, Ideal for multiple rooms and spaces.
Non magnetic beryllium for MRI rooms with anti-scratch surface and personalized finishing.
Fingerstock joint with multiple strips, Beryllium used for a pleasing color and anti-rust.
A thin anti-scratch gasket, available in copper and aluminum alloy material for durability.
What are the Common Materials of Finger Stocks?
Stainless Steel
Stainless steel possesses a good tensile strength and a wide operating temperature range, retaining its original shape even under repeated compression.
Beryllium Copper Alloy
Beryllium copper alloy is a more common material, offering excellent electrical conductivity, tensile strength, and corrosion resistance. It maintains good elasticity and durability even during prolonged use. Compared to stainless steel, beryllium copper finger stocks exhibit superior electrical conductivity.
Where are the Finger Stock Gaskets Used?
Shielding Doors
Indoor applications requiring shielding effects, such as medical or semiconductor fields, finger stocks not only effectively block electromagnetic waves but also maintain their original shape and elasticity after repeated opening and closing cycles.
Communications Sector
Finger stocks can be used in 5G communication equipment to achieve electromagnetic shielding and ensure unimpeded signal transmission.
Electronics Industry
In the electronics industry, finger stock facilitates connections between circuit boards and components. Its high conductivity ensures smooth and efficient current transmission.
New Energy Vehicles
In the automotive sector, finger stock also has a wide range of applications, including sensors, switches, connectors, and numerous other components. The durability and reliable performance of finger stock ensure that automotive parts operate smoothly under diverse conditions, while also ensuring the user’s safety during driving.
In summary, finger stock is a highly promising component. This is why GALLOP INNOTEK recommends selecting it to support your business.
The Common Processes of Finger Stocks
Electroplating
GALLOP INNOTEK offers electroplating processing to enhance performance according to your specific needs. The plating materials include chemically stable metals such as tin, nickel, gold, and silver, which provide superior corrosion resistance while maintaining electrical conductivity.
Heat Treatment
Typically, heat treatment for finger-shaped yellow strips involves holding them at specific high temperatures for several hours. Taking beryllium copper alloy as an example, when processing beryllium copper spring strips, we maintain them at 320°C to 340°C for 2-4 hours to achieve superior elasticity and strength.
It is essential to recognize that both temperature and duration are crucial during heat treatment. Higher temperatures are not always beneficial, as excessively high or low temperatures can hinder the product’s performance. Similarly, the heating duration must be precise as well. Both too short and too long processing times can result in unsatisfactory properties.
However, you can believe that GALLOP INNOTEK possesses professional production capabilities and equipment to deliver products with optimal performance.
What are the Installation Methods for Finger Stocks?
Adhesive Type
This type of finger stock typically features an adhesive backing. Simply align it with the surface you wish to attach it to and press firmly to secure it in place. When installing, ensure the surface is free of grease or oil. Once fixed, it requires a 24-hour curing period; during this time, avoid touching it to ensure optimal adhesion.
Slotted Type
The curved shape on the back of this finger stock type allows it to snap securely into the groove of the surface being fastened. This joint is mechanical and relies entirely on the physical structure of its back, resulting in slightly lower costs. The fastening process is extremely simple and requires no curing time.
Rail-type
This bonding method can be achieved in two ways: either by forming raised or recessed structures on the contact surface itself or by combining other materials to create a rail that securely anchors the finger stock to the target component. Compared to the slotted type, manufacturing the rail may incur additional material costs.
In a word, whatever the installation methods you need, just contact GALLOP INNOTEK to get your desired products.
In fact, it is the physical properties of beryllium copper alloys that necessitate heat treatment during their processing. After undergoing heat treatment, the mechanical properties and strength of beryllium copper finger stocks improve significantly, enabling them to withstand tens of thousands of press cycles without deformation. It also exhibits excellent electrical conductivity and corrosion resistance, providing long-lasting protection for your equipment.
In contrast, untreated beryllium copper springs fail to achieve satisfactory resilience performance. Consequently, in applications requiring repeated opening and closing, like shielding doors, untreated beryllium copper finger stocks cannot effectively maintain their original shape and are similarly unsuitable for long-term use.
